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\"angular\"","./node_modules/@angular/common/fesm2022/common.mjs","./node_modules/@angular/common/fesm2022/http.mjs","./node_modules/@angular/core/fesm2022/core.mjs","./node_modules/rxjs/dist/esm/internal/observable/merge.js","./node_modules/@angular/platform-browser/fesm2022/platform-browser.mjs","./node_modules/rxjs/dist/esm/internal/observable/combineLatest.js","./node_modules/rxjs/dist/esm/internal/observable/concat.js","./node_modules/rxjs/dist/esm/internal/operators/concatAll.js","./node_modules/rxjs/dist/esm/internal/observable/defer.js","./node_modules/rxjs/dist/esm/internal/observable/throwError.js","./node_modules/rxjs/dist/esm/internal/operators/refCount.js","./node_modules/rxjs/dist/esm/internal/observable/ConnectableObservable.js","./node_modules/rxjs/dist/esm/internal/operators/defaultIfEmpty.js","./node_modules/rxjs/dist/esm/internal/operators/throwIfEmpty.js","./node_modules/rxjs/dist/esm/internal/operators/first.js","./node_modules/rxjs/dist/esm/internal/operators/takeLast.js","./node_modules/@angular/router/fesm2022/router.mjs","./node_modules/rxjs/dist/esm/internal/util/isObservable.js","./node_modules/rxjs/dist/esm/internal/operators/startWith.js","./node_modules/rxjs/dist/esm/internal/operators/scan.js","./node_modules/rxjs/dist/esm/internal/operators/scanInternals.js","./node_modules/rxjs/dist/esm/internal/operators/last.js","./node_modules/rxjs/dist/esm/internal/operators/mapTo.js","./node_modules/@buildium/ngx-app-utility/dist/fesm2022/buildium-ngx-app-utility.mjs","./node_modules/@ngneat/until-destroy/fesm2022/ngneat-until-destroy.mjs","./node_modules/@babel/runtime/helpers/esm/asyncToGenerator.js","./node_modules/tslib/tslib.es6.mjs"],"sourcesContent":["let basePath = '';\nlet basePathApp = '';\nlet basePathPublic = '';\nlet pathToPrivateStaticImages = '';\nlet pathToPublicStaticImages = '';\nlet isLocalhost;\n\nconst managerHybridLocalhost = 'localhost:4242';\nconst managerPublicHybridLocalhost = 'localhost:4222';\n\nif (window.location.host === managerHybridLocalhost || window.location.host === managerPublicHybridLocalhost) {\n    // isolated local development\n    basePath = '';\n    basePathApp = '';\n    basePathPublic = '';\n    pathToPrivateStaticImages = '/assets/static-images';\n    pathToPublicStaticImages = '/assets/static-images';\n    isLocalhost = true;\n} else {\n    const pathArray = window.location.pathname.split('/');\n    // monolithic IIS served, assume our mount path is {host}/manager/app\n    basePath = `/${pathArray[1]}`;\n\n    basePathApp = `${basePath}/app`;\n    basePathPublic = `${basePath}/public`;\n    pathToPrivateStaticImages = '/Manager/client/static-images';\n    pathToPublicStaticImages = '/Manager/client/public/static-images';\n    isLocalhost = false;\n}\n\nexport const BASE_PATH = `${basePath}`,\n    BASE_PATH_API = `${basePath}/api`,\n    BASE_PATH_APP = basePathApp,\n    BASE_PATH_PUBLIC = basePathPublic,\n    FILE_DOWNLOAD_BASE = `${basePath}/api/files/download?fileId=`,\n    LOGIN_PATH = `${BASE_PATH_PUBLIC}/authentication/login`,\n    STATIC_IMAGES_PATH = pathToPrivateStaticImages,\n    STATIC_IMAGES_PUBLIC_PATH = pathToPublicStaticImages,\n    IS_LOCALHOST = isLocalhost,\n    HYBRID_LOCALHOST = managerHybridLocalhost,\n    PUBLIC_HYBRID_LOCALHOST = managerPublicHybridLocalhost;\n","import { Transition } from '@uirouter/core';\nimport { environment } from '../../../environments/environment';\n\nexport function UiRouterRun(\n    $log,\n    $transitions: Transition,\n    PageTitleService,\n    PageLoadingService,\n    // $trace\n) {\n    // ui-router debugging\n    // $trace.enable('TRANSITION');\n\n    $transitions.onError({}, (transition: Transition) => {\n        const toState = transition.to();\n        const fromState = transition.from();\n        const error = transition.error();\n\n        // When the application is re-initilized, due to browser page reload, ui-router is throwing a \"Transition Ignored\" error\n        // and attempts to replay the transition. This appears to have no functional impact on routing, so we'll suppress the error.\n        const transitionIgnored = 5;\n        const isApplicationReloadTransition = (!fromState.name && fromState.abstract) && error.type === transitionIgnored;\n        if (isApplicationReloadTransition) {\n            // eslint-disable-next-line no-console\n            console.debug('[application-reload] An expected ignored transition error was swallowed.');\n\n            return;\n        }\n\n        // Future states are placeholders for a ui-router state. By design, ui-router will re-run the transition when the lazy module is loaded.\n        // https://ui-router.github.io/guide/lazyloading#future-states\n        // https://github.com/ui-router/react/issues/333#issuecomment-569134892\n        const transitionSuperseded = 2;\n        const isFutureStateTransition = toState.name.endsWith('.**') && error.type === transitionSuperseded;\n        if (isFutureStateTransition) {\n            // eslint-disable-next-line no-console\n            console.debug('[lazy-load] Navigation crossed a feature module boundary into:', toState.url);\n\n            return;\n        }\n\n        $log.error(\n            `Error during state change from ${fromState.name} to ${toState.name}. Error details: ${error}`\n        );\n    });\n\n    $transitions.onStart({}, () => {\n        PageLoadingService.start();\n    });\n\n    $transitions.onSuccess({}, () => {\n        PageLoadingService.stop();\n    });\n\n    // HYBRID ROUTING\n    // ui-router falls through to `sink` and transfers control to Angular router, when it doesn't match an angularjs state.\n    const isAngularJsPage = {\n        to: (state) => state.name !== 'sink'\n    };\n    $transitions.onSuccess(isAngularJsPage, (transition: Transition) => {\n        if (!environment.production) {\n            // eslint-disable-next-line no-console\n            console.debug('[ui-router] isAngularJsPage');\n        }\n\n        const toState = transition.to();\n        let title = '';\n\n        if (toState.data && toState.data.title) {\n            title = toState.data.title;\n        }\n        PageTitleService.setTitle(title);\n    });\n}\n\nUiRouterRun.$inject = [\n    '$log',\n    '$transitions',\n    'PageTitleService',\n    'PageLoadingService',\n    // '$trace'\n];\n","import angular from 'angular';\nimport uiRouter from '@uirouter/angularjs';\nimport 'oclazyload';\nimport { UiRouterRun } from './core/routes/ui-router-run';\n\nexport const PublicAngularJSRoutingModule = angular.module('buildium-public.routing', [\n    uiRouter,\n    'oc.lazyLoad'\n])\n    .config(['$locationProvider', '$uiRouterProvider', ($locationProvider, $uiRouterProvider) => {\n        $locationProvider.html5Mode(true);\n\n        const { stateRegistry } = $uiRouterProvider;\n\n        /**\n         * HYBRID ROUTING\n         *\n         * In hybrid routing, the Angular router is the primary url matcher. When an angularjs url is matched,\n         * ui-router starts matching urls with registered states. The sink state is used to handle unmatched urls\n         * and transfer routing back to Angular router.\n         * https://blog.nrwl.io/using-ngupgrade-like-a-pro-lazy-loading-angularjs-applications-469819f5c86\n         */\n        const sinkState = {\n            name: 'sink',\n            url: '/*path',\n            template: ''\n        };\n        stateRegistry.register(sinkState);\n\n        /**\n         * ANGULARJS LAZY-LOADING\n         *\n         * This is used to generate ui-router future states and to create separate bundles for each feature module.\n         * Note: For lazy-loading to work, the feature module must not be ES6 imported in any other angularjs module.\n         * createFutureState() does the magic via dynamic import() and ocLazyLoad().\n         */\n        // TODO - move apps to 'ajs-app/features' and restore './features' import path.\n        function createFutureState(module) {\n            // toplevelState, dir and filename normally share the same name by convention\n            let importDir = `${module.topLevelState}`;\n            let importFilenameSegment = `${module.topLevelState}`;\n\n            // TODO - some feature modules have not been refactored, due to impact and risk associated with URL changes (H2-3550)\n            if (module.modulePath != null) {\n                // eslint-disable-next-line prefer-destructuring\n                importDir = module.modulePath.split('/')[1];\n                // trim the \".module\" part, since webpack can't handle it\n                importFilenameSegment = module.modulePath.split('/')[2].slice(0, -7);\n            }\n\n            const futureState = {\n                name: `${module.topLevelState}.**`,\n                url: module.topLevelUrl,\n                lazyLoad($transitions$) {\n                    const ocLazyLoad = $transitions$.injector().get('$ocLazyLoad');\n\n                    // https://webpack.js.org/api/module-methods/#dynamic-expressions-in-import\n                    // When webpack gets to this dynamic import, it will cause every .module file\n                    // in the ../../../../public directory to be bundled into a new chunk.\n\n                    // It is not possible to use a fully dynamic import statement, such as import(foo).\n                    // Because foo could potentially be any path to any file in your system or project.\n                    // The import() must contain at least some information about where the module is located.\n\n                    // WARNING - due to the nature of webpack dynamic import bundling, variable replacement\n                    //           in the import path should be limited to simple strings (no special characters)\n\n                    return import(\n                        `../../../../public/${importDir}/${importFilenameSegment}.module`).then(mod => {\n                        return ocLazyLoad.inject(mod[module.moduleName]);\n                    });\n                }\n            };\n            return futureState;\n        }\n\n        function registerFutureStates(modules) {\n            const lazyModules = modules.filter(mod => mod.isLazyLoaded);\n            lazyModules.forEach(mod => {\n                const futureState = createFutureState(mod);\n                stateRegistry.register(futureState);\n            });\n        }\n\n        registerFutureStates(angularJsFeatureModules);\n    }])\n    .run(UiRouterRun)\n    .name;\n\n/**\n * `moduleName`: Use the exported name from the feature module file.\n *\n * `modulePath`: (OPTIONAL) Use this if the topLevelState differs from the path and filename convention.\n *               This must be in the format '/subdir/filename.module' relative to the /app folder.\n *               e.g: '/rent-roll/rent-roll.module'\n *\n * `topLevelState`: This must match the top-level state in the routes file of the feature module.\n *\n * `topLevelUrl`: This must match the top-level url segment in the routes file of the feature module.\n *\n * `isLazyLoaded`:  true - this will register the module as a future state.\n *                 false - useful as a temporary workaround if tracking down dependencies is difficult.\n *                 Note: if false, the module will need to be imported in the main AngularJSModule\n */\nexport const angularJsFeatureModules = [\n    {\n        moduleName: 'PublicAuthenticationApp',\n        topLevelState: 'authentication',\n        topLevelUrl: '/authentication',\n        isLazyLoaded: true\n    },\n    {\n        moduleName: 'SetNewPasswordApp',\n        topLevelState: 'set-new-password',\n        topLevelUrl: '/set-new-password',\n        isLazyLoaded: true\n    },\n    {\n        moduleName: 'SetupTwoFactorAuthenticationApp',\n        topLevelState: 'set-up-two-factor-authentication',\n        topLevelUrl: '/set-up-two-factor-authentication',\n        isLazyLoaded: true\n    },\n    {\n        moduleName: 'UserAgreementsApp',\n        modulePath: '/user-agreements/user-agreements.module',\n        topLevelState: 'userAgreements',\n        topLevelUrl: '/user-agreements',\n        isLazyLoaded: true\n    },\n    {\n        moduleName: 'WelcomeApp',\n        modulePath: '/welcome/welcome.module',\n        topLevelState: 'welcomeTrial',\n        topLevelUrl: '/welcome',\n        isLazyLoaded: true\n    }\n];\n\n/**\n * HYBRID ROUTING\n * All angularjs top-level routes are exported here, so that Angular router can transfer routing to angularjs and ui-router.\n */\nexport const defaultAngularJsRoutes = [];\n\nangularJsFeatureModules.forEach(mod => {\n    const routeSegment = mod.topLevelUrl.slice(mod.topLevelUrl.indexOf('/') + 1);\n    defaultAngularJsRoutes.push(routeSegment);\n});\n","import { Injectable } from '@angular/core';\nimport { HttpClient } from '@angular/common/http';\nimport { Observable } from 'rxjs';\nimport { BASE_PATH_API } from '@manager-base/app-base/environment/paths/constants';\n\n@Injectable({\n    providedIn: 'root'\n})\n\nexport class AccountSettingsService {\n    constructor(\n        private http: HttpClient\n    ) { }\n\n    getUnauthenticatedAccountSettings(): Observable<any> {\n        const url = `${BASE_PATH_API}/unauthenticatedAccountSettings`;\n        return this.http.get(url);\n    }\n}\n","// CI/CD environment configs - this file is used across various pipeline stages\r\n// environment variables are maintained in octopus\r\n// https://octopus.com/docs/deployment-process/configuration-features/substitute-variables-in-files\r\n\r\nexport const environment = {\r\n    production: true,\r\n    name: ' prod',\r\n    sentry: {\r\n        enabled: 'true',\r\n        dsn: 'https://004febf12cbeb72f5b7f7935572e6b38@o236113.ingest.us.sentry.io/4507538775015424',\r\n        environment: 'prod',\r\n        release: 'ae96d5d'\r\n    }\r\n};\r\n","/**\n * @license Angular v16.2.12\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { Directive, InjectionToken, forwardRef, Optional, Inject, ɵisPromise, ɵisSubscribable, ɵRuntimeError, Self, EventEmitter, Input, Host, SkipSelf, booleanAttribute, ChangeDetectorRef, Output, NgModule, Injectable, inject, Version } from '@angular/core';\nimport { ɵgetDOM } from '@angular/common';\nimport { from, forkJoin } from 'rxjs';\nimport { map } from 'rxjs/operators';\n\n/**\n * Base class for all ControlValueAccessor classes defined in Forms package.\n * Contains common logic and utility functions.\n *\n * Note: this is an *internal-only* class and should not be extended or used directly in\n * applications code.\n */\nclass BaseControlValueAccessor {\n    constructor(_renderer, _elementRef) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        /**\n         * The registered callback function called when a change or input event occurs on the input\n         * element.\n         * @nodoc\n         */\n        this.onChange = (_) => { };\n        /**\n         * The registered callback function called when a blur event occurs on the input element.\n         * @nodoc\n         */\n        this.onTouched = () => { };\n    }\n    /**\n     * Helper method that sets a property on a target element using the current Renderer\n     * implementation.\n     * @nodoc\n     */\n    setProperty(key, value) {\n        this._renderer.setProperty(this._elementRef.nativeElement, key, value);\n    }\n    /**\n     * Registers a function called when the control is touched.\n     * @nodoc\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Registers a function called when the control value changes.\n     * @nodoc\n     */\n    registerOnChange(fn) {\n        this.onChange = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the range input element.\n     * @nodoc\n     */\n    setDisabledState(isDisabled) {\n        this.setProperty('disabled', isDisabled);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BaseControlValueAccessor, deps: [{ token: i0.Renderer2 }, { token: i0.ElementRef }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: BaseControlValueAccessor, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BaseControlValueAccessor, decorators: [{\n            type: Directive\n        }], ctorParameters: function () { return [{ type: i0.Renderer2 }, { type: i0.ElementRef }]; } });\n/**\n * Base class for all built-in ControlValueAccessor classes (except DefaultValueAccessor, which is\n * used in case no other CVAs can be found). We use this class to distinguish between default CVA,\n * built-in CVAs and custom CVAs, so that Forms logic can recognize built-in CVAs and treat custom\n * ones with higher priority (when both built-in and custom CVAs are present).\n *\n * Note: this is an *internal-only* class and should not be extended or used directly in\n * applications code.\n */\nclass BuiltInControlValueAccessor extends BaseControlValueAccessor {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BuiltInControlValueAccessor, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: BuiltInControlValueAccessor, usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BuiltInControlValueAccessor, decorators: [{\n            type: Directive\n        }] });\n/**\n * Used to provide a `ControlValueAccessor` for form controls.\n *\n * See `DefaultValueAccessor` for how to implement one.\n *\n * @publicApi\n */\nconst NG_VALUE_ACCESSOR = new InjectionToken('NgValueAccessor');\n\nconst CHECKBOX_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef(() => CheckboxControlValueAccessor),\n    multi: true,\n};\n/**\n * @description\n * A `ControlValueAccessor` for writing a value and listening to changes on a checkbox input\n * element.\n *\n * @usageNotes\n *\n * ### Using a checkbox with a reactive form.\n *\n * The following example shows how to use a checkbox with a reactive form.\n *\n * ```ts\n * const rememberLoginControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"checkbox\" [formControl]=\"rememberLoginControl\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass CheckboxControlValueAccessor extends BuiltInControlValueAccessor {\n    /**\n     * Sets the \"checked\" property on the input element.\n     * @nodoc\n     */\n    writeValue(value) {\n        this.setProperty('checked', value);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CheckboxControlValueAccessor, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: CheckboxControlValueAccessor, selector: \"input[type=checkbox][formControlName],input[type=checkbox][formControl],input[type=checkbox][ngModel]\", host: { listeners: { \"change\": \"onChange($event.target.checked)\", \"blur\": \"onTouched()\" } }, providers: [CHECKBOX_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CheckboxControlValueAccessor, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input[type=checkbox][formControlName],input[type=checkbox][formControl],input[type=checkbox][ngModel]',\n                    host: { '(change)': 'onChange($event.target.checked)', '(blur)': 'onTouched()' },\n                    providers: [CHECKBOX_VALUE_ACCESSOR]\n                }]\n        }] });\n\nconst DEFAULT_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef(() => DefaultValueAccessor),\n    multi: true\n};\n/**\n * We must check whether the agent is Android because composition events\n * behave differently between iOS and Android.\n */\nfunction _isAndroid() {\n    const userAgent = ɵgetDOM() ? ɵgetDOM().getUserAgent() : '';\n    return /android (\\d+)/.test(userAgent.toLowerCase());\n}\n/**\n * @description\n * Provide this token to control if form directives buffer IME input until\n * the \"compositionend\" event occurs.\n * @publicApi\n */\nconst COMPOSITION_BUFFER_MODE = new InjectionToken('CompositionEventMode');\n/**\n * The default `ControlValueAccessor` for writing a value and listening to changes on input\n * elements. The accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * {@searchKeywords ngDefaultControl}\n *\n * @usageNotes\n *\n * ### Using the default value accessor\n *\n * The following example shows how to use an input element that activates the default value accessor\n * (in this case, a text field).\n *\n * ```ts\n * const firstNameControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"text\" [formControl]=\"firstNameControl\">\n * ```\n *\n * This value accessor is used by default for `<input type=\"text\">` and `<textarea>` elements, but\n * you could also use it for custom components that have similar behavior and do not require special\n * processing. In order to attach the default value accessor to a custom element, add the\n * `ngDefaultControl` attribute as shown below.\n *\n * ```\n * <custom-input-component ngDefaultControl [(ngModel)]=\"value\"></custom-input-component>\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass DefaultValueAccessor extends BaseControlValueAccessor {\n    constructor(renderer, elementRef, _compositionMode) {\n        super(renderer, elementRef);\n        this._compositionMode = _compositionMode;\n        /** Whether the user is creating a composition string (IME events). */\n        this._composing = false;\n        if (this._compositionMode == null) {\n            this._compositionMode = !_isAndroid();\n        }\n    }\n    /**\n     * Sets the \"value\" property on the input element.\n     * @nodoc\n     */\n    writeValue(value) {\n        const normalizedValue = value == null ? '' : value;\n        this.setProperty('value', normalizedValue);\n    }\n    /** @internal */\n    _handleInput(value) {\n        if (!this._compositionMode || (this._compositionMode && !this._composing)) {\n            this.onChange(value);\n        }\n    }\n    /** @internal */\n    _compositionStart() {\n        this._composing = true;\n    }\n    /** @internal */\n    _compositionEnd(value) {\n        this._composing = false;\n        this._compositionMode && this.onChange(value);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultValueAccessor, deps: [{ token: i0.Renderer2 }, { token: i0.ElementRef }, { token: COMPOSITION_BUFFER_MODE, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: DefaultValueAccessor, selector: \"input:not([type=checkbox])[formControlName],textarea[formControlName],input:not([type=checkbox])[formControl],textarea[formControl],input:not([type=checkbox])[ngModel],textarea[ngModel],[ngDefaultControl]\", host: { listeners: { \"input\": \"$any(this)._handleInput($event.target.value)\", \"blur\": \"onTouched()\", \"compositionstart\": \"$any(this)._compositionStart()\", \"compositionend\": \"$any(this)._compositionEnd($event.target.value)\" } }, providers: [DEFAULT_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultValueAccessor, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input:not([type=checkbox])[formControlName],textarea[formControlName],input:not([type=checkbox])[formControl],textarea[formControl],input:not([type=checkbox])[ngModel],textarea[ngModel],[ngDefaultControl]',\n                    // TODO: vsavkin replace the above selector with the one below it once\n                    // https://github.com/angular/angular/issues/3011 is implemented\n                    // selector: '[ngModel],[formControl],[formControlName]',\n                    host: {\n                        '(input)': '$any(this)._handleInput($event.target.value)',\n                        '(blur)': 'onTouched()',\n                        '(compositionstart)': '$any(this)._compositionStart()',\n                        '(compositionend)': '$any(this)._compositionEnd($event.target.value)'\n                    },\n                    providers: [DEFAULT_VALUE_ACCESSOR]\n                }]\n        }], ctorParameters: function () { return [{ type: i0.Renderer2 }, { type: i0.ElementRef }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [COMPOSITION_BUFFER_MODE]\n                }] }]; } });\n\nfunction isEmptyInputValue(value) {\n    /**\n     * Check if the object is a string or array before evaluating the length attribute.\n     * This avoids falsely rejecting objects that contain a custom length attribute.\n     * For example, the object {id: 1, length: 0, width: 0} should not be returned as empty.\n     */\n    return value == null ||\n        ((typeof value === 'string' || Array.isArray(value)) && value.length === 0);\n}\nfunction hasValidLength(value) {\n    // non-strict comparison is intentional, to check for both `null` and `undefined` values\n    return value != null && typeof value.length === 'number';\n}\n/**\n * @description\n * An `InjectionToken` for registering additional synchronous validators used with\n * `AbstractControl`s.\n *\n * @see {@link NG_ASYNC_VALIDATORS}\n *\n * @usageNotes\n *\n * ### Providing a custom validator\n *\n * The following example registers a custom validator directive. Adding the validator to the\n * existing collection of validators requires the `multi: true` option.\n *\n * ```typescript\n * @Directive({\n *   selector: '[customValidator]',\n *   providers: [{provide: NG_VALIDATORS, useExisting: CustomValidatorDirective, multi: true}]\n * })\n * class CustomValidatorDirective implements Validator {\n *   validate(control: AbstractControl): ValidationErrors | null {\n *     return { 'custom': true };\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nconst NG_VALIDATORS = new InjectionToken('NgValidators');\n/**\n * @description\n * An `InjectionToken` for registering additional asynchronous validators used with\n * `AbstractControl`s.\n *\n * @see {@link NG_VALIDATORS}\n *\n * @usageNotes\n *\n * ### Provide a custom async validator directive\n *\n * The following example implements the `AsyncValidator` interface to create an\n * async validator directive with a custom error key.\n *\n * ```typescript\n * @Directive({\n *   selector: '[customAsyncValidator]',\n *   providers: [{provide: NG_ASYNC_VALIDATORS, useExisting: CustomAsyncValidatorDirective, multi:\n * true}]\n * })\n * class CustomAsyncValidatorDirective implements AsyncValidator {\n *   validate(control: AbstractControl): Promise<ValidationErrors|null> {\n *     return Promise.resolve({'custom': true});\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nconst NG_ASYNC_VALIDATORS = new InjectionToken('NgAsyncValidators');\n/**\n * A regular expression that matches valid e-mail addresses.\n *\n * At a high level, this regexp matches e-mail addresses of the format `local-part@tld`, where:\n * - `local-part` consists of one or more of the allowed characters (alphanumeric and some\n *   punctuation symbols).\n * - `local-part` cannot begin or end with a period (`.`).\n * - `local-part` cannot be longer than 64 characters.\n * - `tld` consists of one or more `labels` separated by periods (`.`). For example `localhost` or\n *   `foo.com`.\n * - A `label` consists of one or more of the allowed characters (alphanumeric, dashes (`-`) and\n *   periods (`.`)).\n * - A `label` cannot begin or end with a dash (`-`) or a period (`.`).\n * - A `label` cannot be longer than 63 characters.\n * - The whole address cannot be longer than 254 characters.\n *\n * ## Implementation background\n *\n * This regexp was ported over from AngularJS (see there for git history):\n * https://github.com/angular/angular.js/blob/c133ef836/src/ng/directive/input.js#L27\n * It is based on the\n * [WHATWG version](https://html.spec.whatwg.org/multipage/input.html#valid-e-mail-address) with\n * some enhancements to incorporate more RFC rules (such as rules related to domain names and the\n * lengths of different parts of the address). The main differences from the WHATWG version are:\n *   - Disallow `local-part` to begin or end with a period (`.`).\n *   - Disallow `local-part` length to exceed 64 characters.\n *   - Disallow total address length to exceed 254 characters.\n *\n * See [this commit](https://github.com/angular/angular.js/commit/f3f5cf72e) for more details.\n */\nconst EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+)*@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;\n/**\n * @description\n * Provides a set of built-in validators that can be used by form controls.\n *\n * A validator is a function that processes a `FormControl` or collection of\n * controls and returns an error map or null. A null map means that validation has passed.\n *\n * @see [Form Validation](/guide/form-validation)\n *\n * @publicApi\n */\nclass Validators {\n    /**\n     * @description\n     * Validator that requires the control's value to be greater than or equal to the provided number.\n     *\n     * @usageNotes\n     *\n     * ### Validate against a minimum of 3\n     *\n     * ```typescript\n     * const control = new FormControl(2, Validators.min(3));\n     *\n     * console.log(control.errors); // {min: {min: 3, actual: 2}}\n     * ```\n     *\n     * @returns A validator function that returns an error map with the\n     * `min` property if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static min(min) {\n        return minValidator(min);\n    }\n    /**\n     * @description\n     * Validator that requires the control's value to be less than or equal to the provided number.\n     *\n     * @usageNotes\n     *\n     * ### Validate against a maximum of 15\n     *\n     * ```typescript\n     * const control = new FormControl(16, Validators.max(15));\n     *\n     * console.log(control.errors); // {max: {max: 15, actual: 16}}\n     * ```\n     *\n     * @returns A validator function that returns an error map with the\n     * `max` property if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static max(max) {\n        return maxValidator(max);\n    }\n    /**\n     * @description\n     * Validator that requires the control have a non-empty value.\n     *\n     * @usageNotes\n     *\n     * ### Validate that the field is non-empty\n     *\n     * ```typescript\n     * const control = new FormControl('', Validators.required);\n     *\n     * console.log(control.errors); // {required: true}\n     * ```\n     *\n     * @returns An error map with the `required` property\n     * if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static required(control) {\n        return requiredValidator(control);\n    }\n    /**\n     * @description\n     * Validator that requires the control's value be true. This validator is commonly\n     * used for required checkboxes.\n     *\n     * @usageNotes\n     *\n     * ### Validate that the field value is true\n     *\n     * ```typescript\n     * const control = new FormControl('some value', Validators.requiredTrue);\n     *\n     * console.log(control.errors); // {required: true}\n     * ```\n     *\n     * @returns An error map that contains the `required` property\n     * set to `true` if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static requiredTrue(control) {\n        return requiredTrueValidator(control);\n    }\n    /**\n     * @description\n     * Validator that requires the control's value pass an email validation test.\n     *\n     * Tests the value using a [regular\n     * expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions)\n     * pattern suitable for common use cases. The pattern is based on the definition of a valid email\n     * address in the [WHATWG HTML\n     * specification](https://html.spec.whatwg.org/multipage/input.html#valid-e-mail-address) with\n     * some enhancements to incorporate more RFC rules (such as rules related to domain names and the\n     * lengths of different parts of the address).\n     *\n     * The differences from the WHATWG version include:\n     * - Disallow `local-part` (the part before the `@` symbol) to begin or end with a period (`.`).\n     * - Disallow `local-part` to be longer than 64 characters.\n     * - Disallow the whole address to be longer than 254 characters.\n     *\n     * If this pattern does not satisfy your business needs, you can use `Validators.pattern()` to\n     * validate the value against a different pattern.\n     *\n     * @usageNotes\n     *\n     * ### Validate that the field matches a valid email pattern\n     *\n     * ```typescript\n     * const control = new FormControl('bad@', Validators.email);\n     *\n     * console.log(control.errors); // {email: true}\n     * ```\n     *\n     * @returns An error map with the `email` property\n     * if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static email(control) {\n        return emailValidator(control);\n    }\n    /**\n     * @description\n     * Validator that requires the length of the control's value to be greater than or equal\n     * to the provided minimum length. This validator is also provided by default if you use the\n     * the HTML5 `minlength` attribute. Note that the `minLength` validator is intended to be used\n     * only for types that have a numeric `length` property, such as strings or arrays. The\n     * `minLength` validator logic is also not invoked for values when their `length` property is 0\n     * (for example in case of an empty string or an empty array), to support optional controls. You\n     * can use the standard `required` validator if empty values should not be considered valid.\n     *\n     * @usageNotes\n     *\n     * ### Validate that the field has a minimum of 3 characters\n     *\n     * ```typescript\n     * const control = new FormControl('ng', Validators.minLength(3));\n     *\n     * console.log(control.errors); // {minlength: {requiredLength: 3, actualLength: 2}}\n     * ```\n     *\n     * ```html\n     * <input minlength=\"5\">\n     * ```\n     *\n     * @returns A validator function that returns an error map with the\n     * `minlength` property if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static minLength(minLength) {\n        return minLengthValidator(minLength);\n    }\n    /**\n     * @description\n     * Validator that requires the length of the control's value to be less than or equal\n     * to the provided maximum length. This validator is also provided by default if you use the\n     * the HTML5 `maxlength` attribute. Note that the `maxLength` validator is intended to be used\n     * only for types that have a numeric `length` property, such as strings or arrays.\n     *\n     * @usageNotes\n     *\n     * ### Validate that the field has maximum of 5 characters\n     *\n     * ```typescript\n     * const control = new FormControl('Angular', Validators.maxLength(5));\n     *\n     * console.log(control.errors); // {maxlength: {requiredLength: 5, actualLength: 7}}\n     * ```\n     *\n     * ```html\n     * <input maxlength=\"5\">\n     * ```\n     *\n     * @returns A validator function that returns an error map with the\n     * `maxlength` property if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static maxLength(maxLength) {\n        return maxLengthValidator(maxLength);\n    }\n    /**\n     * @description\n     * Validator that requires the control's value to match a regex pattern. This validator is also\n     * provided by default if you use the HTML5 `pattern` attribute.\n     *\n     * @usageNotes\n     *\n     * ### Validate that the field only contains letters or spaces\n     *\n     * ```typescript\n     * const control = new FormControl('1', Validators.pattern('[a-zA-Z ]*'));\n     *\n     * console.log(control.errors); // {pattern: {requiredPattern: '^[a-zA-Z ]*$', actualValue: '1'}}\n     * ```\n     *\n     * ```html\n     * <input pattern=\"[a-zA-Z ]*\">\n     * ```\n     *\n     * ### Pattern matching with the global or sticky flag\n     *\n     * `RegExp` objects created with the `g` or `y` flags that are passed into `Validators.pattern`\n     * can produce different results on the same input when validations are run consecutively. This is\n     * due to how the behavior of `RegExp.prototype.test` is\n     * specified in [ECMA-262](https://tc39.es/ecma262/#sec-regexpbuiltinexec)\n     * (`RegExp` preserves the index of the last match when the global or sticky flag is used).\n     * Due to this behavior, it is recommended that when using\n     * `Validators.pattern` you **do not** pass in a `RegExp` object with either the global or sticky\n     * flag enabled.\n     *\n     * ```typescript\n     * // Not recommended (since the `g` flag is used)\n     * const controlOne = new FormControl('1', Validators.pattern(/foo/g));\n     *\n     * // Good\n     * const controlTwo = new FormControl('1', Validators.pattern(/foo/));\n     * ```\n     *\n     * @param pattern A regular expression to be used as is to test the values, or a string.\n     * If a string is passed, the `^` character is prepended and the `$` character is\n     * appended to the provided string (if not already present), and the resulting regular\n     * expression is used to test the values.\n     *\n     * @returns A validator function that returns an error map with the\n     * `pattern` property if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static pattern(pattern) {\n        return patternValidator(pattern);\n    }\n    /**\n     * @description\n     * Validator that performs no operation.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static nullValidator(control) {\n        return nullValidator(control);\n    }\n    static compose(validators) {\n        return compose(validators);\n    }\n    /**\n     * @description\n     * Compose multiple async validators into a single function that returns the union\n     * of the individual error objects for the provided control.\n     *\n     * @returns A validator function that returns an error map with the\n     * merged error objects of the async validators if the validation check fails, otherwise `null`.\n     *\n     * @see {@link updateValueAndValidity()}\n     *\n     */\n    static composeAsync(validators) {\n        return composeAsync(validators);\n    }\n}\n/**\n * Validator that requires the control's value to be greater than or equal to the provided number.\n * See `Validators.min` for additional information.\n */\nfunction minValidator(min) {\n    return (control) => {\n        if (isEmptyInputValue(control.value) || isEmptyInputValue(min)) {\n            return null; // don't validate empty values to allow optional controls\n        }\n        const value = parseFloat(control.value);\n        // Controls with NaN values after parsing should be treated as not having a\n        // minimum, per the HTML forms spec: https://www.w3.org/TR/html5/forms.html#attr-input-min\n        return !isNaN(value) && value < min ? { 'min': { 'min': min, 'actual': control.value } } : null;\n    };\n}\n/**\n * Validator that requires the control's value to be less than or equal to the provided number.\n * See `Validators.max` for additional information.\n */\nfunction maxValidator(max) {\n    return (control) => {\n        if (isEmptyInputValue(control.value) || isEmptyInputValue(max)) {\n            return null; // don't validate empty values to allow optional controls\n        }\n        const value = parseFloat(control.value);\n        // Controls with NaN values after parsing should be treated as not having a\n        // maximum, per the HTML forms spec: https://www.w3.org/TR/html5/forms.html#attr-input-max\n        return !isNaN(value) && value > max ? { 'max': { 'max': max, 'actual': control.value } } : null;\n    };\n}\n/**\n * Validator that requires the control have a non-empty value.\n * See `Validators.required` for additional information.\n */\nfunction requiredValidator(control) {\n    return isEmptyInputValue(control.value) ? { 'required': true } : null;\n}\n/**\n * Validator that requires the control's value be true. This validator is commonly\n * used for required checkboxes.\n * See `Validators.requiredTrue` for additional information.\n */\nfunction requiredTrueValidator(control) {\n    return control.value === true ? null : { 'required': true };\n}\n/**\n * Validator that requires the control's value pass an email validation test.\n * See `Validators.email` for additional information.\n */\nfunction emailValidator(control) {\n    if (isEmptyInputValue(control.value)) {\n        return null; // don't validate empty values to allow optional controls\n    }\n    return EMAIL_REGEXP.test(control.value) ? null : { 'email': true };\n}\n/**\n * Validator that requires the length of the control's value to be greater than or equal\n * to the provided minimum length. See `Validators.minLength` for additional information.\n */\nfunction minLengthValidator(minLength) {\n    return (control) => {\n        if (isEmptyInputValue(control.value) || !hasValidLength(control.value)) {\n            // don't validate empty values to allow optional controls\n            // don't validate values without `length` property\n            return null;\n        }\n        return control.value.length < minLength ?\n            { 'minlength': { 'requiredLength': minLength, 'actualLength': control.value.length } } :\n            null;\n    };\n}\n/**\n * Validator that requires the length of the control's value to be less than or equal\n * to the provided maximum length. See `Validators.maxLength` for additional information.\n */\nfunction maxLengthValidator(maxLength) {\n    return (control) => {\n        return hasValidLength(control.value) && control.value.length > maxLength ?\n            { 'maxlength': { 'requiredLength': maxLength, 'actualLength': control.value.length } } :\n            null;\n    };\n}\n/**\n * Validator that requires the control's value to match a regex pattern.\n * See `Validators.pattern` for additional information.\n */\nfunction patternValidator(pattern) {\n    if (!pattern)\n        return nullValidator;\n    let regex;\n    let regexStr;\n    if (typeof pattern === 'string') {\n        regexStr = '';\n        if (pattern.charAt(0) !== '^')\n            regexStr += '^';\n        regexStr += pattern;\n        if (pattern.charAt(pattern.length - 1) !== '$')\n            regexStr += '$';\n        regex = new RegExp(regexStr);\n    }\n    else {\n        regexStr = pattern.toString();\n        regex = pattern;\n    }\n    return (control) => {\n        if (isEmptyInputValue(control.value)) {\n            return null; // don't validate empty values to allow optional controls\n        }\n        const value = control.value;\n        return regex.test(value) ? null :\n            { 'pattern': { 'requiredPattern': regexStr, 'actualValue': value } };\n    };\n}\n/**\n * Function that has `ValidatorFn` shape, but performs no operation.\n */\nfunction nullValidator(control) {\n    return null;\n}\nfunction isPresent(o) {\n    return o != null;\n}\nfunction toObservable(value) {\n    const obs = ɵisPromise(value) ? from(value) : value;\n    if ((typeof ngDevMode === 'undefined' || ngDevMode) && !(ɵisSubscribable(obs))) {\n        let errorMessage = `Expected async validator to return Promise or Observable.`;\n        // A synchronous validator will return object or null.\n        if (typeof value === 'object') {\n            errorMessage +=\n                ' Are you using a synchronous validator where an async validator is expected?';\n        }\n        throw new ɵRuntimeError(-1101 /* RuntimeErrorCode.WRONG_VALIDATOR_RETURN_TYPE */, errorMessage);\n    }\n    return obs;\n}\nfunction mergeErrors(arrayOfErrors) {\n    let res = {};\n    arrayOfErrors.forEach((errors) => {\n        res = errors != null ? { ...res, ...errors } : res;\n    });\n    return Object.keys(res).length === 0 ? null : res;\n}\nfunction executeValidators(control, validators) {\n    return validators.map(validator => validator(control));\n}\nfunction isValidatorFn(validator) {\n    return !validator.validate;\n}\n/**\n * Given the list of validators that may contain both functions as well as classes, return the list\n * of validator functions (convert validator classes into validator functions). This is needed to\n * have consistent structure in validators list before composing them.\n *\n * @param validators The set of validators that may contain validators both in plain function form\n *     as well as represented as a validator class.\n */\nfunction normalizeValidators(validators) {\n    return validators.map(validator => {\n        return isValidatorFn(validator) ?\n            validator :\n            ((c) => validator.validate(c));\n    });\n}\n/**\n * Merges synchronous validators into a single validator function.\n * See `Validators.compose` for additional information.\n */\nfunction compose(validators) {\n    if (!validators)\n        return null;\n    const presentValidators = validators.filter(isPresent);\n    if (presentValidators.length == 0)\n        return null;\n    return function (control) {\n        return mergeErrors(executeValidators(control, presentValidators));\n    };\n}\n/**\n * Accepts a list of validators of different possible shapes (`Validator` and `ValidatorFn`),\n * normalizes the list (converts everything to `ValidatorFn`) and merges them into a single\n * validator function.\n */\nfunction composeValidators(validators) {\n    return validators != null ? compose(normalizeValidators(validators)) : null;\n}\n/**\n * Merges asynchronous validators into a single validator function.\n * See `Validators.composeAsync` for additional information.\n */\nfunction composeAsync(validators) {\n    if (!validators)\n        return null;\n    const presentValidators = validators.filter(isPresent);\n    if (presentValidators.length == 0)\n        return null;\n    return function (control) {\n        const observables = executeValidators(control, presentValidators).map(toObservable);\n        return forkJoin(observables).pipe(map(mergeErrors));\n    };\n}\n/**\n * Accepts a list of async validators of different possible shapes (`AsyncValidator` and\n * `AsyncValidatorFn`), normalizes the list (converts everything to `AsyncValidatorFn`) and merges\n * them into a single validator function.\n */\nfunction composeAsyncValidators(validators) {\n    return validators != null ? composeAsync(normalizeValidators(validators)) :\n        null;\n}\n/**\n * Merges raw control validators with a given directive validator and returns the combined list of\n * validators as an array.\n */\nfunction mergeValidators(controlValidators, dirValidator) {\n    if (controlValidators === null)\n        return [dirValidator];\n    return Array.isArray(controlValidators) ? [...controlValidators, dirValidator] :\n        [controlValidators, dirValidator];\n}\n/**\n * Retrieves the list of raw synchronous validators attached to a given control.\n */\nfunction getControlValidators(control) {\n    return control._rawValidators;\n}\n/**\n * Retrieves the list of raw asynchronous validators attached to a given control.\n */\nfunction getControlAsyncValidators(control) {\n    return control._rawAsyncValidators;\n}\n/**\n * Accepts a singleton validator, an array, or null, and returns an array type with the provided\n * validators.\n *\n * @param validators A validator, validators, or null.\n * @returns A validators array.\n */\nfunction makeValidatorsArray(validators) {\n    if (!validators)\n        return [];\n    return Array.isArray(validators) ? validators : [validators];\n}\n/**\n * Determines whether a validator or validators array has a given validator.\n *\n * @param validators The validator or validators to compare against.\n * @param validator The validator to check.\n * @returns Whether the validator is present.\n */\nfunction hasValidator(validators, validator) {\n    return Array.isArray(validators) ? validators.includes(validator) : validators === validator;\n}\n/**\n * Combines two arrays of validators into one. If duplicates are provided, only one will be added.\n *\n * @param validators The new validators.\n * @param currentValidators The base array of current validators.\n * @returns An array of validators.\n */\nfunction addValidators(validators, currentValidators) {\n    const current = makeValidatorsArray(currentValidators);\n    const validatorsToAdd = makeValidatorsArray(validators);\n    validatorsToAdd.forEach((v) => {\n        // Note: if there are duplicate entries in the new validators array,\n        // only the first one would be added to the current list of validators.\n        // Duplicate ones would be ignored since `hasValidator` would detect\n        // the presence of a validator function and we update the current list in place.\n        if (!hasValidator(current, v)) {\n            current.push(v);\n        }\n    });\n    return current;\n}\nfunction removeValidators(validators, currentValidators) {\n    return makeValidatorsArray(currentValidators).filter(v => !hasValidator(validators, v));\n}\n\n/**\n * @description\n * Base class for control directives.\n *\n * This class is only used internally in the `ReactiveFormsModule` and the `FormsModule`.\n *\n * @publicApi\n */\nclass AbstractControlDirective {\n    constructor() {\n        /**\n         * Set of synchronous validators as they were provided while calling `setValidators` function.\n         * @internal\n         */\n        this._rawValidators = [];\n        /**\n         * Set of asynchronous validators as they were provided while calling `setAsyncValidators`\n         * function.\n         * @internal\n         */\n        this._rawAsyncValidators = [];\n        /*\n         * The set of callbacks to be invoked when directive instance is being destroyed.\n         */\n        this._onDestroyCallbacks = [];\n    }\n    /**\n     * @description\n     * Reports the value of the control if it is present, otherwise null.\n     */\n    get value() {\n        return this.control ? this.control.value : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is valid. A control is considered valid if no\n     * validation errors exist with the current value.\n     * If the control is not present, null is returned.\n     */\n    get valid() {\n        return this.control ? this.control.valid : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is invalid, meaning that an error exists in the input value.\n     * If the control is not present, null is returned.\n     */\n    get invalid() {\n        return this.control ? this.control.invalid : null;\n    }\n    /**\n     * @description\n     * Reports whether a control is pending, meaning that async validation is occurring and\n     * errors are not yet available for the input value. If the control is not present, null is\n     * returned.\n     */\n    get pending() {\n        return this.control ? this.control.pending : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is disabled, meaning that the control is disabled\n     * in the UI and is exempt from validation checks and excluded from aggregate\n     * values of ancestor controls. If the control is not present, null is returned.\n     */\n    get disabled() {\n        return this.control ? this.control.disabled : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is enabled, meaning that the control is included in ancestor\n     * calculations of validity or value. If the control is not present, null is returned.\n     */\n    get enabled() {\n        return this.control ? this.control.enabled : null;\n    }\n    /**\n     * @description\n     * Reports the control's validation errors. If the control is not present, null is returned.\n     */\n    get errors() {\n        return this.control ? this.control.errors : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is pristine, meaning that the user has not yet changed\n     * the value in the UI. If the control is not present, null is returned.\n     */\n    get pristine() {\n        return this.control ? this.control.pristine : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is dirty, meaning that the user has changed\n     * the value in the UI. If the control is not present, null is returned.\n     */\n    get dirty() {\n        return this.control ? this.control.dirty : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is touched, meaning that the user has triggered\n     * a `blur` event on it. If the control is not present, null is returned.\n     */\n    get touched() {\n        return this.control ? this.control.touched : null;\n    }\n    /**\n     * @description\n     * Reports the validation status of the control. Possible values include:\n     * 'VALID', 'INVALID', 'DISABLED', and 'PENDING'.\n     * If the control is not present, null is returned.\n     */\n    get status() {\n        return this.control ? this.control.status : null;\n    }\n    /**\n     * @description\n     * Reports whether the control is untouched, meaning that the user has not yet triggered\n     * a `blur` event on it. If the control is not present, null is returned.\n     */\n    get untouched() {\n        return this.control ? this.control.untouched : null;\n    }\n    /**\n     * @description\n     * Returns a multicasting observable that emits a validation status whenever it is\n     * calculated for the control. If the control is not present, null is returned.\n     */\n    get statusChanges() {\n        return this.control ? this.control.statusChanges : null;\n    }\n    /**\n     * @description\n     * Returns a multicasting observable of value changes for the control that emits every time the\n     * value of the control changes in the UI or programmatically.\n     * If the control is not present, null is returned.\n     */\n    get valueChanges() {\n        return this.control ? this.control.valueChanges : null;\n    }\n    /**\n     * @description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     */\n    get path() {\n        return null;\n    }\n    /**\n     * Sets synchronous validators for this directive.\n     * @internal\n     */\n    _setValidators(validators) {\n        this._rawValidators = validators || [];\n        this._composedValidatorFn = composeValidators(this._rawValidators);\n    }\n    /**\n     * Sets asynchronous validators for this directive.\n     * @internal\n     */\n    _setAsyncValidators(validators) {\n        this._rawAsyncValidators = validators || [];\n        this._composedAsyncValidatorFn = composeAsyncValidators(this._rawAsyncValidators);\n    }\n    /**\n     * @description\n     * Synchronous validator function composed of all the synchronous validators registered with this\n     * directive.\n     */\n    get validator() {\n        return this._composedValidatorFn || null;\n    }\n    /**\n     * @description\n     * Asynchronous validator function composed of all the asynchronous validators registered with\n     * this directive.\n     */\n    get asyncValidator() {\n        return this._composedAsyncValidatorFn || null;\n    }\n    /**\n     * Internal function to register callbacks that should be invoked\n     * when directive instance is being destroyed.\n     * @internal\n     */\n    _registerOnDestroy(fn) {\n        this._onDestroyCallbacks.push(fn);\n    }\n    /**\n     * Internal function to invoke all registered \"on destroy\" callbacks.\n     * Note: calling this function also clears the list of callbacks.\n     * @internal\n     */\n    _invokeOnDestroyCallbacks() {\n        this._onDestroyCallbacks.forEach(fn => fn());\n        this._onDestroyCallbacks = [];\n    }\n    /**\n     * @description\n     * Resets the control with the provided value if the control is present.\n     */\n    reset(value = undefined) {\n        if (this.control)\n            this.control.reset(value);\n    }\n    /**\n     * @description\n     * Reports whether the control with the given path has the error specified.\n     *\n     * @param errorCode The code of the error to check\n     * @param path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * If no path is given, this method checks for the error on the current control.\n     *\n     * @returns whether the given error is present in the control at the given path.\n     *\n     * If the control is not present, false is returned.\n     */\n    hasError(errorCode, path) {\n        return this.control ? this.control.hasError(errorCode, path) : false;\n    }\n    /**\n     * @description\n     * Reports error data for the control with the given path.\n     *\n     * @param errorCode The code of the error to check\n     * @param path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * @returns error data for that particular error. If the control or error is not present,\n     * null is returned.\n     */\n    getError(errorCode, path) {\n        return this.control ? this.control.getError(errorCode, path) : null;\n    }\n}\n\n/**\n * @description\n * A base class for directives that contain multiple registered instances of `NgControl`.\n * Only used by the forms module.\n *\n * @publicApi\n */\nclass ControlContainer extends AbstractControlDirective {\n    /**\n     * @description\n     * The top-level form directive for the control.\n     */\n    get formDirective() {\n        return null;\n    }\n    /**\n     * @description\n     * The path to this group.\n     */\n    get path() {\n        return null;\n    }\n}\n\n/**\n * @description\n * A base class that all `FormControl`-based directives extend. It binds a `FormControl`\n * object to a DOM element.\n *\n * @publicApi\n */\nclass NgControl extends AbstractControlDirective {\n    constructor() {\n        super(...arguments);\n        /**\n         * @description\n         * The parent form for the control.\n         *\n         * @internal\n         */\n        this._parent = null;\n        /**\n         * @description\n         * The name for the control\n         */\n        this.name = null;\n        /**\n         * @description\n         * The value accessor for the control\n         */\n        this.valueAccessor = null;\n    }\n}\n\n// DO NOT REFACTOR!\n// Each status is represented by a separate function to make sure that\n// advanced Closure Compiler optimizations related to property renaming\n// can work correctly.\nclass AbstractControlStatus {\n    constructor(cd) {\n        this._cd = cd;\n    }\n    get isTouched() {\n        return !!this._cd?.control?.touched;\n    }\n    get isUntouched() {\n        return !!this._cd?.control?.untouched;\n    }\n    get isPristine() {\n        return !!this._cd?.control?.pristine;\n    }\n    get isDirty() {\n        return !!this._cd?.control?.dirty;\n    }\n    get isValid() {\n        return !!this._cd?.control?.valid;\n    }\n    get isInvalid() {\n        return !!this._cd?.control?.invalid;\n    }\n    get isPending() {\n        return !!this._cd?.control?.pending;\n    }\n    get isSubmitted() {\n        // We check for the `submitted` field from `NgForm` and `FormGroupDirective` classes, but\n        // we avoid instanceof checks to prevent non-tree-shakable references to those types.\n        return !!this._cd?.submitted;\n    }\n}\nconst ngControlStatusHost = {\n    '[class.ng-untouched]': 'isUntouched',\n    '[class.ng-touched]': 'isTouched',\n    '[class.ng-pristine]': 'isPristine',\n    '[class.ng-dirty]': 'isDirty',\n    '[class.ng-valid]': 'isValid',\n    '[class.ng-invalid]': 'isInvalid',\n    '[class.ng-pending]': 'isPending',\n};\nconst ngGroupStatusHost = {\n    ...ngControlStatusHost,\n    '[class.ng-submitted]': 'isSubmitted',\n};\n/**\n * @description\n * Directive automatically applied to Angular form controls that sets CSS classes\n * based on control status.\n *\n * @usageNotes\n *\n * ### CSS classes applied\n *\n * The following classes are applied as the properties become true:\n *\n * * ng-valid\n * * ng-invalid\n * * ng-pending\n * * ng-pristine\n * * ng-dirty\n * * ng-untouched\n * * ng-touched\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass NgControlStatus extends AbstractControlStatus {\n    constructor(cd) {\n        super(cd);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgControlStatus, deps: [{ token: NgControl, self: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgControlStatus, selector: \"[formControlName],[ngModel],[formControl]\", host: { properties: { \"class.ng-untouched\": \"isUntouched\", \"class.ng-touched\": \"isTouched\", \"class.ng-pristine\": \"isPristine\", \"class.ng-dirty\": \"isDirty\", \"class.ng-valid\": \"isValid\", \"class.ng-invalid\": \"isInvalid\", \"class.ng-pending\": \"isPending\" } }, usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgControlStatus, decorators: [{\n            type: Directive,\n            args: [{ selector: '[formControlName],[ngModel],[formControl]', host: ngControlStatusHost }]\n        }], ctorParameters: function () { return [{ type: NgControl, decorators: [{\n                    type: Self\n                }] }]; } });\n/**\n * @description\n * Directive automatically applied to Angular form groups that sets CSS classes\n * based on control status (valid/invalid/dirty/etc). On groups, this includes the additional\n * class ng-submitted.\n *\n * @see {@link NgControlStatus}\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass NgControlStatusGroup extends AbstractControlStatus {\n    constructor(cd) {\n        super(cd);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgControlStatusGroup, deps: [{ token: ControlContainer, optional: true, self: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgControlStatusGroup, selector: \"[formGroupName],[formArrayName],[ngModelGroup],[formGroup],form:not([ngNoForm]),[ngForm]\", host: { properties: { \"class.ng-untouched\": \"isUntouched\", \"class.ng-touched\": \"isTouched\", \"class.ng-pristine\": \"isPristine\", \"class.ng-dirty\": \"isDirty\", \"class.ng-valid\": \"isValid\", \"class.ng-invalid\": \"isInvalid\", \"class.ng-pending\": \"isPending\", \"class.ng-submitted\": \"isSubmitted\" } }, usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgControlStatusGroup, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[formGroupName],[formArrayName],[ngModelGroup],[formGroup],form:not([ngNoForm]),[ngForm]',\n                    host: ngGroupStatusHost\n                }]\n        }], ctorParameters: function () { return [{ type: ControlContainer, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }] }]; } });\n\nconst formControlNameExample = `\n  <div [formGroup]=\"myGroup\">\n    <input formControlName=\"firstName\">\n  </div>\n\n  In your class:\n\n  this.myGroup = new FormGroup({\n      firstName: new FormControl()\n  });`;\nconst formGroupNameExample = `\n  <div [formGroup]=\"myGroup\">\n      <div formGroupName=\"person\">\n        <input formControlName=\"firstName\">\n      </div>\n  </div>\n\n  In your class:\n\n  this.myGroup = new FormGroup({\n      person: new FormGroup({ firstName: new FormControl() })\n  });`;\nconst formArrayNameExample = `\n  <div [formGroup]=\"myGroup\">\n    <div formArrayName=\"cities\">\n      <div *ngFor=\"let city of cityArray.controls; index as i\">\n        <input [formControlName]=\"i\">\n      </div>\n    </div>\n  </div>\n\n  In your class:\n\n  this.cityArray = new FormArray([new FormControl('SF')]);\n  this.myGroup = new FormGroup({\n    cities: this.cityArray\n  });`;\nconst ngModelGroupExample = `\n  <form>\n      <div ngModelGroup=\"person\">\n        <input [(ngModel)]=\"person.name\" name=\"firstName\">\n      </div>\n  </form>`;\nconst ngModelWithFormGroupExample = `\n  <div [formGroup]=\"myGroup\">\n      <input formControlName=\"firstName\">\n      <input [(ngModel)]=\"showMoreControls\" [ngModelOptions]=\"{standalone: true}\">\n  </div>\n`;\n\nfunction controlParentException() {\n    return new ɵRuntimeError(1050 /* RuntimeErrorCode.FORM_CONTROL_NAME_MISSING_PARENT */, `formControlName must be used with a parent formGroup directive.  You'll want to add a formGroup\n      directive and pass it an existing FormGroup instance (you can create one in your class).\n\n    Example:\n\n    ${formControlNameExample}`);\n}\nfunction ngModelGroupException() {\n    return new ɵRuntimeError(1051 /* RuntimeErrorCode.FORM_CONTROL_NAME_INSIDE_MODEL_GROUP */, `formControlName cannot be used with an ngModelGroup parent. It is only compatible with parents\n      that also have a \"form\" prefix: formGroupName, formArrayName, or formGroup.\n\n      Option 1:  Update the parent to be formGroupName (reactive form strategy)\n\n      ${formGroupNameExample}\n\n      Option 2: Use ngModel instead of formControlName (template-driven strategy)\n\n      ${ngModelGroupExample}`);\n}\nfunction missingFormException() {\n    return new ɵRuntimeError(1052 /* RuntimeErrorCode.FORM_GROUP_MISSING_INSTANCE */, `formGroup expects a FormGroup instance. Please pass one in.\n\n      Example:\n\n      ${formControlNameExample}`);\n}\nfunction groupParentException() {\n    return new ɵRuntimeError(1053 /* RuntimeErrorCode.FORM_GROUP_NAME_MISSING_PARENT */, `formGroupName must be used with a parent formGroup directive.  You'll want to add a formGroup\n    directive and pass it an existing FormGroup instance (you can create one in your class).\n\n    Example:\n\n    ${formGroupNameExample}`);\n}\nfunction arrayParentException() {\n    return new ɵRuntimeError(1054 /* RuntimeErrorCode.FORM_ARRAY_NAME_MISSING_PARENT */, `formArrayName must be used with a parent formGroup directive.  You'll want to add a formGroup\n      directive and pass it an existing FormGroup instance (you can create one in your class).\n\n      Example:\n\n      ${formArrayNameExample}`);\n}\nconst disabledAttrWarning = `\n  It looks like you're using the disabled attribute with a reactive form directive. If you set disabled to true\n  when you set up this control in your component class, the disabled attribute will actually be set in the DOM for\n  you. We recommend using this approach to avoid 'changed after checked' errors.\n\n  Example:\n  // Specify the \\`disabled\\` property at control creation time:\n  form = new FormGroup({\n    first: new FormControl({value: 'Nancy', disabled: true}, Validators.required),\n    last: new FormControl('Drew', Validators.required)\n  });\n\n  // Controls can also be enabled/disabled after creation:\n  form.get('first')?.enable();\n  form.get('last')?.disable();\n`;\nconst asyncValidatorsDroppedWithOptsWarning = `\n  It looks like you're constructing using a FormControl with both an options argument and an\n  async validators argument. Mixing these arguments will cause your async validators to be dropped.\n  You should either put all your validators in the options object, or in separate validators\n  arguments. For example:\n\n  // Using validators arguments\n  fc = new FormControl(42, Validators.required, myAsyncValidator);\n\n  // Using AbstractControlOptions\n  fc = new FormControl(42, {validators: Validators.required, asyncValidators: myAV});\n\n  // Do NOT mix them: async validators will be dropped!\n  fc = new FormControl(42, {validators: Validators.required}, /* Oops! */ myAsyncValidator);\n`;\nfunction ngModelWarning(directiveName) {\n    return `\n  It looks like you're using ngModel on the same form field as ${directiveName}.\n  Support for using the ngModel input property and ngModelChange event with\n  reactive form directives has been deprecated in Angular v6 and will be removed\n  in a future version of Angular.\n\n  For more information on this, see our API docs here:\n  https://angular.io/api/forms/${directiveName === 'formControl' ? 'FormControlDirective' : 'FormControlName'}#use-with-ngmodel\n  `;\n}\nfunction describeKey(isFormGroup, key) {\n    return isFormGroup ? `with name: '${key}'` : `at index: ${key}`;\n}\nfunction noControlsError(isFormGroup) {\n    return `\n    There are no form controls registered with this ${isFormGroup ? 'group' : 'array'} yet. If you're using ngModel,\n    you may want to check next tick (e.g. use setTimeout).\n  `;\n}\nfunction missingControlError(isFormGroup, key) {\n    return `Cannot find form control ${describeKey(isFormGroup, key)}`;\n}\nfunction missingControlValueError(isFormGroup, key) {\n    return `Must supply a value for form control ${describeKey(isFormGroup, key)}`;\n}\n\n/**\n * Reports that a control is valid, meaning that no errors exist in the input value.\n *\n * @see {@link status}\n */\nconst VALID = 'VALID';\n/**\n * Reports that a control is invalid, meaning that an error exists in the input value.\n *\n * @see {@link status}\n */\nconst INVALID = 'INVALID';\n/**\n * Reports that a control is pending, meaning that async validation is occurring and\n * errors are not yet available for the input value.\n *\n * @see {@link markAsPending}\n * @see {@link status}\n */\nconst PENDING = 'PENDING';\n/**\n * Reports that a control is disabled, meaning that the control is exempt from ancestor\n * calculations of validity or value.\n *\n * @see {@link markAsDisabled}\n * @see {@link status}\n */\nconst DISABLED = 'DISABLED';\n/**\n * Gets validators from either an options object or given validators.\n */\nfunction pickValidators(validatorOrOpts) {\n    return (isOptionsObj(validatorOrOpts) ? validatorOrOpts.validators : validatorOrOpts) || null;\n}\n/**\n * Creates validator function by combining provided validators.\n */\nfunction coerceToValidator(validator) {\n    return Array.isArray(validator) ? composeValidators(validator) : validator || null;\n}\n/**\n * Gets async validators from either an options object or given validators.\n */\nfunction pickAsyncValidators(asyncValidator, validatorOrOpts) {\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        if (isOptionsObj(validatorOrOpts) && asyncValidator) {\n            console.warn(asyncValidatorsDroppedWithOptsWarning);\n        }\n    }\n    return (isOptionsObj(validatorOrOpts) ? validatorOrOpts.asyncValidators : asyncValidator) || null;\n}\n/**\n * Creates async validator function by combining provided async validators.\n */\nfunction coerceToAsyncValidator(asyncValidator) {\n    return Array.isArray(asyncValidator) ? composeAsyncValidators(asyncValidator) :\n        asyncValidator || null;\n}\nfunction isOptionsObj(validatorOrOpts) {\n    return validatorOrOpts != null && !Array.isArray(validatorOrOpts) &&\n        typeof validatorOrOpts === 'object';\n}\nfunction assertControlPresent(parent, isGroup, key) {\n    const controls = parent.controls;\n    const collection = isGroup ? Object.keys(controls) : controls;\n    if (!collection.length) {\n        throw new ɵRuntimeError(1000 /* RuntimeErrorCode.NO_CONTROLS */, (typeof ngDevMode === 'undefined' || ngDevMode) ? noControlsError(isGroup) : '');\n    }\n    if (!controls[key]) {\n        throw new ɵRuntimeError(1001 /* RuntimeErrorCode.MISSING_CONTROL */, (typeof ngDevMode === 'undefined' || ngDevMode) ? missingControlError(isGroup, key) : '');\n    }\n}\nfunction assertAllValuesPresent(control, isGroup, value) {\n    control._forEachChild((_, key) => {\n        if (value[key] === undefined) {\n            throw new ɵRuntimeError(1002 /* RuntimeErrorCode.MISSING_CONTROL_VALUE */, (typeof ngDevMode === 'undefined' || ngDevMode) ? missingControlValueError(isGroup, key) :\n                '');\n        }\n    });\n}\n// clang-format on\n/**\n * This is the base class for `FormControl`, `FormGroup`, and `FormArray`.\n *\n * It provides some of the shared behavior that all controls and groups of controls have, like\n * running validators, calculating status, and resetting state. It also defines the properties\n * that are shared between all sub-classes, like `value`, `valid`, and `dirty`. It shouldn't be\n * instantiated directly.\n *\n * The first type parameter TValue represents the value type of the control (`control.value`).\n * The optional type parameter TRawValue  represents the raw value type (`control.getRawValue()`).\n *\n * @see [Forms Guide](/guide/forms)\n * @see [Reactive Forms Guide](/guide/reactive-forms)\n * @see [Dynamic Forms Guide](/guide/dynamic-form)\n *\n * @publicApi\n */\nclass AbstractControl {\n    /**\n     * Initialize the AbstractControl instance.\n     *\n     * @param validators The function or array of functions that is used to determine the validity of\n     *     this control synchronously.\n     * @param asyncValidators The function or array of functions that is used to determine validity of\n     *     this control asynchronously.\n     */\n    constructor(validators, asyncValidators) {\n        /** @internal */\n        this._pendingDirty = false;\n        /**\n         * Indicates that a control has its own pending asynchronous validation in progress.\n         *\n         * @internal\n         */\n        this._hasOwnPendingAsyncValidator = false;\n        /** @internal */\n        this._pendingTouched = false;\n        /** @internal */\n        this._onCollectionChange = () => { };\n        this._parent = null;\n        /**\n         * A control is `pristine` if the user has not yet changed\n         * the value in the UI.\n         *\n         * @returns True if the user has not yet changed the value in the UI; compare `dirty`.\n         * Programmatic changes to a control's value do not mark it dirty.\n         */\n        this.pristine = true;\n        /**\n         * True if the control is marked as `touched`.\n         *\n         * A control is marked `touched` once the user has triggered\n         * a `blur` event on it.\n         */\n        this.touched = false;\n        /** @internal */\n        this._onDisabledChange = [];\n        this._assignValidators(validators);\n        this._assignAsyncValidators(asyncValidators);\n    }\n    /**\n     * Returns the function that is used to determine the validity of this control synchronously.\n     * If multiple validators have been added, this will be a single composed function.\n     * See `Validators.compose()` for additional information.\n     */\n    get validator() {\n        return this._composedValidatorFn;\n    }\n    set validator(validatorFn) {\n        this._rawValidators = this._composedValidatorFn = validatorFn;\n    }\n    /**\n     * Returns the function that is used to determine the validity of this control asynchronously.\n     * If multiple validators have been added, this will be a single composed function.\n     * See `Validators.compose()` for additional information.\n     */\n    get asyncValidator() {\n        return this._composedAsyncValidatorFn;\n    }\n    set asyncValidator(asyncValidatorFn) {\n        this._rawAsyncValidators = this._composedAsyncValidatorFn = asyncValidatorFn;\n    }\n    /**\n     * The parent control.\n     */\n    get parent() {\n        return this._parent;\n    }\n    /**\n     * A control is `valid` when its `status` is `VALID`.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     * @returns True if the control has passed all of its validation tests,\n     * false otherwise.\n     */\n    get valid() {\n        return this.status === VALID;\n    }\n    /**\n     * A control is `invalid` when its `status` is `INVALID`.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     * @returns True if this control has failed one or more of its validation checks,\n     * false otherwise.\n     */\n    get invalid() {\n        return this.status === INVALID;\n    }\n    /**\n     * A control is `pending` when its `status` is `PENDING`.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     * @returns True if this control is in the process of conducting a validation check,\n     * false otherwise.\n     */\n    get pending() {\n        return this.status == PENDING;\n    }\n    /**\n     * A control is `disabled` when its `status` is `DISABLED`.\n     *\n     * Disabled controls are exempt from validation checks and\n     * are not included in the aggregate value of their ancestor\n     * controls.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     * @returns True if the control is disabled, false otherwise.\n     */\n    get disabled() {\n        return this.status === DISABLED;\n    }\n    /**\n     * A control is `enabled` as long as its `status` is not `DISABLED`.\n     *\n     * @returns True if the control has any status other than 'DISABLED',\n     * false if the status is 'DISABLED'.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     */\n    get enabled() {\n        return this.status !== DISABLED;\n    }\n    /**\n     * A control is `dirty` if the user has changed the value\n     * in the UI.\n     *\n     * @returns True if the user has changed the value of this control in the UI; compare `pristine`.\n     * Programmatic changes to a control's value do not mark it dirty.\n     */\n    get dirty() {\n        return !this.pristine;\n    }\n    /**\n     * True if the control has not been marked as touched\n     *\n     * A control is `untouched` if the user has not yet triggered\n     * a `blur` event on it.\n     */\n    get untouched() {\n        return !this.touched;\n    }\n    /**\n     * Reports the update strategy of the `AbstractControl` (meaning\n     * the event on which the control updates itself).\n     * Possible values: `'change'` | `'blur'` | `'submit'`\n     * Default value: `'change'`\n     */\n    get updateOn() {\n        return this._updateOn ? this._updateOn : (this.parent ? this.parent.updateOn : 'change');\n    }\n    /**\n     * Sets the synchronous validators that are active on this control.  Calling\n     * this overwrites any existing synchronous validators.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * If you want to add a new validator without affecting existing ones, consider\n     * using `addValidators()` method instead.\n     */\n    setValidators(validators) {\n        this._assignValidators(validators);\n    }\n    /**\n     * Sets the asynchronous validators that are active on this control. Calling this\n     * overwrites any existing asynchronous validators.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * If you want to add a new validator without affecting existing ones, consider\n     * using `addAsyncValidators()` method instead.\n     */\n    setAsyncValidators(validators) {\n        this._assignAsyncValidators(validators);\n    }\n    /**\n     * Add a synchronous validator or validators to this control, without affecting other validators.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * Adding a validator that already exists will have no effect. If duplicate validator functions\n     * are present in the `validators` array, only the first instance would be added to a form\n     * control.\n     *\n     * @param validators The new validator function or functions to add to this control.\n     */\n    addValidators(validators) {\n        this.setValidators(addValidators(validators, this._rawValidators));\n    }\n    /**\n     * Add an asynchronous validator or validators to this control, without affecting other\n     * validators.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * Adding a validator that already exists will have no effect.\n     *\n     * @param validators The new asynchronous validator function or functions to add to this control.\n     */\n    addAsyncValidators(validators) {\n        this.setAsyncValidators(addValidators(validators, this._rawAsyncValidators));\n    }\n    /**\n     * Remove a synchronous validator from this control, without affecting other validators.\n     * Validators are compared by function reference; you must pass a reference to the exact same\n     * validator function as the one that was originally set. If a provided validator is not found,\n     * it is ignored.\n     *\n     * @usageNotes\n     *\n     * ### Reference to a ValidatorFn\n     *\n     * ```\n     * // Reference to the RequiredValidator\n     * const ctrl = new FormControl<string | null>('', Validators.required);\n     * ctrl.removeValidators(Validators.required);\n     *\n     * // Reference to anonymous function inside MinValidator\n     * const minValidator = Validators.min(3);\n     * const ctrl = new FormControl<string | null>('', minValidator);\n     * expect(ctrl.hasValidator(minValidator)).toEqual(true)\n     * expect(ctrl.hasValidator(Validators.min(3))).toEqual(false)\n     *\n     * ctrl.removeValidators(minValidator);\n     * ```\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * @param validators The validator or validators to remove.\n     */\n    removeValidators(validators) {\n        this.setValidators(removeValidators(validators, this._rawValidators));\n    }\n    /**\n     * Remove an asynchronous validator from this control, without affecting other validators.\n     * Validators are compared by function reference; you must pass a reference to the exact same\n     * validator function as the one that was originally set. If a provided validator is not found, it\n     * is ignored.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * @param validators The asynchronous validator or validators to remove.\n     */\n    removeAsyncValidators(validators) {\n        this.setAsyncValidators(removeValidators(validators, this._rawAsyncValidators));\n    }\n    /**\n     * Check whether a synchronous validator function is present on this control. The provided\n     * validator must be a reference to the exact same function that was provided.\n     *\n     * @usageNotes\n     *\n     * ### Reference to a ValidatorFn\n     *\n     * ```\n     * // Reference to the RequiredValidator\n     * const ctrl = new FormControl<number | null>(0, Validators.required);\n     * expect(ctrl.hasValidator(Validators.required)).toEqual(true)\n     *\n     * // Reference to anonymous function inside MinValidator\n     * const minValidator = Validators.min(3);\n     * const ctrl = new FormControl<number | null>(0, minValidator);\n     * expect(ctrl.hasValidator(minValidator)).toEqual(true)\n     * expect(ctrl.hasValidator(Validators.min(3))).toEqual(false)\n     * ```\n     *\n     * @param validator The validator to check for presence. Compared by function reference.\n     * @returns Whether the provided validator was found on this control.\n     */\n    hasValidator(validator) {\n        return hasValidator(this._rawValidators, validator);\n    }\n    /**\n     * Check whether an asynchronous validator function is present on this control. The provided\n     * validator must be a reference to the exact same function that was provided.\n     *\n     * @param validator The asynchronous validator to check for presence. Compared by function\n     *     reference.\n     * @returns Whether the provided asynchronous validator was found on this control.\n     */\n    hasAsyncValidator(validator) {\n        return hasValidator(this._rawAsyncValidators, validator);\n    }\n    /**\n     * Empties out the synchronous validator list.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     */\n    clearValidators() {\n        this.validator = null;\n    }\n    /**\n     * Empties out the async validator list.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     */\n    clearAsyncValidators() {\n        this.asyncValidator = null;\n    }\n    /**\n     * Marks the control as `touched`. A control is touched by focus and\n     * blur events that do not change the value.\n     *\n     * @see {@link markAsUntouched()}\n     * @see {@link markAsDirty()}\n     * @see {@link markAsPristine()}\n     *\n     * @param opts Configuration options that determine how the control propagates changes\n     * and emits events after marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     */\n    markAsTouched(opts = {}) {\n        this.touched = true;\n        if (this._parent && !opts.onlySelf) {\n            this._parent.markAsTouched(opts);\n        }\n    }\n    /**\n     * Marks the control and all its descendant controls as `touched`.\n     * @see {@link markAsTouched()}\n     */\n    markAllAsTouched() {\n        this.markAsTouched({ onlySelf: true });\n        this._forEachChild((control) => control.markAllAsTouched());\n    }\n    /**\n     * Marks the control as `untouched`.\n     *\n     * If the control has any children, also marks all children as `untouched`\n     * and recalculates the `touched` status of all parent controls.\n     *\n     * @see {@link markAsTouched()}\n     * @see {@link markAsDirty()}\n     * @see {@link markAsPristine()}\n     *\n     * @param opts Configuration options that determine how the control propagates changes\n     * and emits events after the marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     */\n    markAsUntouched(opts = {}) {\n        this.touched = false;\n        this._pendingTouched = false;\n        this._forEachChild((control) => {\n            control.markAsUntouched({ onlySelf: true });\n        });\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updateTouched(opts);\n        }\n    }\n    /**\n     * Marks the control as `dirty`. A control becomes dirty when\n     * the control's value is changed through the UI; compare `markAsTouched`.\n     *\n     * @see {@link markAsTouched()}\n     * @see {@link markAsUntouched()}\n     * @see {@link markAsPristine()}\n     *\n     * @param opts Configuration options that determine how the control propagates changes\n     * and emits events after marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     */\n    markAsDirty(opts = {}) {\n        this.pristine = false;\n        if (this._parent && !opts.onlySelf) {\n            this._parent.markAsDirty(opts);\n        }\n    }\n    /**\n     * Marks the control as `pristine`.\n     *\n     * If the control has any children, marks all children as `pristine`,\n     * and recalculates the `pristine` status of all parent\n     * controls.\n     *\n     * @see {@link markAsTouched()}\n     * @see {@link markAsUntouched()}\n     * @see {@link markAsDirty()}\n     *\n     * @param opts Configuration options that determine how the control emits events after\n     * marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     */\n    markAsPristine(opts = {}) {\n        this.pristine = true;\n        this._pendingDirty = false;\n        this._forEachChild((control) => {\n            control.markAsPristine({ onlySelf: true });\n        });\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updatePristine(opts);\n        }\n    }\n    /**\n     * Marks the control as `pending`.\n     *\n     * A control is pending while the control performs async validation.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     * @param opts Configuration options that determine how the control propagates changes and\n     * emits events after marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), the `statusChanges`\n     * observable emits an event with the latest status the control is marked pending.\n     * When false, no events are emitted.\n     *\n     */\n    markAsPending(opts = {}) {\n        this.status = PENDING;\n        if (opts.emitEvent !== false) {\n            this.statusChanges.emit(this.status);\n        }\n        if (this._parent && !opts.onlySelf) {\n            this._parent.markAsPending(opts);\n        }\n    }\n    /**\n     * Disables the control. This means the control is exempt from validation checks and\n     * excluded from the aggregate value of any parent. Its status is `DISABLED`.\n     *\n     * If the control has children, all children are also disabled.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     * @param opts Configuration options that determine how the control propagates\n     * changes and emits events after the control is disabled.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is disabled.\n     * When false, no events are emitted.\n     */\n    disable(opts = {}) {\n        // If parent has been marked artificially dirty we don't want to re-calculate the\n        // parent's dirtiness based on the children.\n        const skipPristineCheck = this._parentMarkedDirty(opts.onlySelf);\n        this.status = DISABLED;\n        this.errors = null;\n        this._forEachChild((control) => {\n            control.disable({ ...opts, onlySelf: true });\n        });\n        this._updateValue();\n        if (opts.emitEvent !== false) {\n            this.valueChanges.emit(this.value);\n            this.statusChanges.emit(this.status);\n        }\n        this._updateAncestors({ ...opts, skipPristineCheck });\n        this._onDisabledChange.forEach((changeFn) => changeFn(true));\n    }\n    /**\n     * Enables the control. This means the control is included in validation checks and\n     * the aggregate value of its parent. Its status recalculates based on its value and\n     * its validators.\n     *\n     * By default, if the control has children, all children are enabled.\n     *\n     * @see {@link AbstractControl.status}\n     *\n     * @param opts Configure options that control how the control propagates changes and\n     * emits events when marked as untouched\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is enabled.\n     * When false, no events are emitted.\n     */\n    enable(opts = {}) {\n        // If parent has been marked artificially dirty we don't want to re-calculate the\n        // parent's dirtiness based on the children.\n        const skipPristineCheck = this._parentMarkedDirty(opts.onlySelf);\n        this.status = VALID;\n        this._forEachChild((control) => {\n            control.enable({ ...opts, onlySelf: true });\n        });\n        this.updateValueAndValidity({ onlySelf: true, emitEvent: opts.emitEvent });\n        this._updateAncestors({ ...opts, skipPristineCheck });\n        this._onDisabledChange.forEach((changeFn) => changeFn(false));\n    }\n    _updateAncestors(opts) {\n        if (this._parent && !opts.onlySelf) {\n            this._parent.updateValueAndValidity(opts);\n            if (!opts.skipPristineCheck) {\n                this._parent._updatePristine();\n            }\n            this._parent._updateTouched();\n        }\n    }\n    /**\n     * Sets the parent of the control\n     *\n     * @param parent The new parent.\n     */\n    setParent(parent) {\n        this._parent = parent;\n    }\n    /**\n     * The raw value of this control. For most control implementations, the raw value will include\n     * disabled children.\n     */\n    getRawValue() {\n        return this.value;\n    }\n    /**\n     * Recalculates the value and validation status of the control.\n     *\n     * By default, it also updates the value and validity of its ancestors.\n     *\n     * @param opts Configuration options determine how the control propagates changes and emits events\n     * after updates and validity checks are applied.\n     * * `onlySelf`: When true, only update this control. When false or not supplied,\n     * update all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is updated.\n     * When false, no events are emitted.\n     */\n    updateValueAndValidity(opts = {}) {\n        this._setInitialStatus();\n        this._updateValue();\n        if (this.enabled) {\n            this._cancelExistingSubscription();\n            this.errors = this._runValidator();\n            this.status = this._calculateStatus();\n            if (this.status === VALID || this.status === PENDING) {\n                this._runAsyncValidator(opts.emitEvent);\n            }\n        }\n        if (opts.emitEvent !== false) {\n            this.valueChanges.emit(this.value);\n            this.statusChanges.emit(this.status);\n        }\n        if (this._parent && !opts.onlySelf) {\n            this._parent.updateValueAndValidity(opts);\n        }\n    }\n    /** @internal */\n    _updateTreeValidity(opts = { emitEvent: true }) {\n        this._forEachChild((ctrl) => ctrl._updateTreeValidity(opts));\n        this.updateValueAndValidity({ onlySelf: true, emitEvent: opts.emitEvent });\n    }\n    _setInitialStatus() {\n        this.status = this._allControlsDisabled() ? DISABLED : VALID;\n    }\n    _runValidator() {\n        return this.validator ? this.validator(this) : null;\n    }\n    _runAsyncValidator(emitEvent) {\n        if (this.asyncValidator) {\n            this.status = PENDING;\n            this._hasOwnPendingAsyncValidator = true;\n            const obs = toObservable(this.asyncValidator(this));\n            this._asyncValidationSubscription = obs.subscribe((errors) => {\n                this._hasOwnPendingAsyncValidator = false;\n                // This will trigger the recalculation of the validation status, which depends on\n                // the state of the asynchronous validation (whether it is in progress or not). So, it is\n                // necessary that we have updated the `_hasOwnPendingAsyncValidator` boolean flag first.\n                this.setErrors(errors, { emitEvent });\n            });\n        }\n    }\n    _cancelExistingSubscription() {\n        if (this._asyncValidationSubscription) {\n            this._asyncValidationSubscription.unsubscribe();\n            this._hasOwnPendingAsyncValidator = false;\n        }\n    }\n    /**\n     * Sets errors on a form control when running validations manually, rather than automatically.\n     *\n     * Calling `setErrors` also updates the validity of the parent control.\n     *\n     * @param opts Configuration options that determine how the control propagates\n     * changes and emits events after the control errors are set.\n     * * `emitEvent`: When true or not supplied (the default), the `statusChanges`\n     * observable emits an event after the errors are set.\n     *\n     * @usageNotes\n     *\n     * ### Manually set the errors for a control\n     *\n     * ```\n     * const login = new FormControl('someLogin');\n     * login.setErrors({\n     *   notUnique: true\n     * });\n     *\n     * expect(login.valid).toEqual(false);\n     * expect(login.errors).toEqual({ notUnique: true });\n     *\n     * login.setValue('someOtherLogin');\n     *\n     * expect(login.valid).toEqual(true);\n     * ```\n     */\n    setErrors(errors, opts = {}) {\n        this.errors = errors;\n        this._updateControlsErrors(opts.emitEvent !== false);\n    }\n    /**\n     * Retrieves a child control given the control's name or path.\n     *\n     * @param path A dot-delimited string or array of string/number values that define the path to the\n     * control. If a string is provided, passing it as a string literal will result in improved type\n     * information. Likewise, if an array is provided, passing it `as const` will cause improved type\n     * information to be available.\n     *\n     * @usageNotes\n     * ### Retrieve a nested control\n     *\n     * For example, to get a `name` control nested within a `person` sub-group:\n     *\n     * * `this.form.get('person.name');`\n     *\n     * -OR-\n     *\n     * * `this.form.get(['person', 'name'] as const);` // `as const` gives improved typings\n     *\n     * ### Retrieve a control in a FormArray\n     *\n     * When accessing an element inside a FormArray, you can use an element index.\n     * For example, to get a `price` control from the first element in an `items` array you can use:\n     *\n     * * `this.form.get('items.0.price');`\n     *\n     * -OR-\n     *\n     * * `this.form.get(['items', 0, 'price']);`\n     */\n    get(path) {\n        let currPath = path;\n        if (currPath == null)\n            return null;\n        if (!Array.isArray(currPath))\n            currPath = currPath.split('.');\n        if (currPath.length === 0)\n            return null;\n        return currPath.reduce((control, name) => control && control._find(name), this);\n    }\n    /**\n     * @description\n     * Reports error data for the control with the given path.\n     *\n     * @param errorCode The code of the error to check\n     * @param path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * @returns error data for that particular error. If the control or error is not present,\n     * null is returned.\n     */\n    getError(errorCode, path) {\n        const control = path ? this.get(path) : this;\n        return control && control.errors ? control.errors[errorCode] : null;\n    }\n    /**\n     * @description\n     * Reports whether the control with the given path has the error specified.\n     *\n     * @param errorCode The code of the error to check\n     * @param path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * If no path is given, this method checks for the error on the current control.\n     *\n     * @returns whether the given error is present in the control at the given path.\n     *\n     * If the control is not present, false is returned.\n     */\n    hasError(errorCode, path) {\n        return !!this.getError(errorCode, path);\n    }\n    /**\n     * Retrieves the top-level ancestor of this control.\n     */\n    get root() {\n        let x = this;\n        while (x._parent) {\n            x = x._parent;\n        }\n        return x;\n    }\n    /** @internal */\n    _updateControlsErrors(emitEvent) {\n        this.status = this._calculateStatus();\n        if (emitEvent) {\n            this.statusChanges.emit(this.status);\n        }\n        if (this._parent) {\n            this._parent._updateControlsErrors(emitEvent);\n        }\n    }\n    /** @internal */\n    _initObservables() {\n        this.valueChanges = new EventEmitter();\n        this.statusChanges = new EventEmitter();\n    }\n    _calculateStatus() {\n        if (this._allControlsDisabled())\n            return DISABLED;\n        if (this.errors)\n            return INVALID;\n        if (this._hasOwnPendingAsyncValidator || this._anyControlsHaveStatus(PENDING))\n            return PENDING;\n        if (this._anyControlsHaveStatus(INVALID))\n            return INVALID;\n        return VALID;\n    }\n    /** @internal */\n    _anyControlsHaveStatus(status) {\n        return this._anyControls((control) => control.status === status);\n    }\n    /** @internal */\n    _anyControlsDirty() {\n        return this._anyControls((control) => control.dirty);\n    }\n    /** @internal */\n    _anyControlsTouched() {\n        return this._anyControls((control) => control.touched);\n    }\n    /** @internal */\n    _updatePristine(opts = {}) {\n        this.pristine = !this._anyControlsDirty();\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updatePristine(opts);\n        }\n    }\n    /** @internal */\n    _updateTouched(opts = {}) {\n        this.touched = this._anyControlsTouched();\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updateTouched(opts);\n        }\n    }\n    /** @internal */\n    _registerOnCollectionChange(fn) {\n        this._onCollectionChange = fn;\n    }\n    /** @internal */\n    _setUpdateStrategy(opts) {\n        if (isOptionsObj(opts) && opts.updateOn != null) {\n            this._updateOn = opts.updateOn;\n        }\n    }\n    /**\n     * Check to see if parent has been marked artificially dirty.\n     *\n     * @internal\n     */\n    _parentMarkedDirty(onlySelf) {\n        const parentDirty = this._parent && this._parent.dirty;\n        return !onlySelf && !!parentDirty && !this._parent._anyControlsDirty();\n    }\n    /** @internal */\n    _find(name) {\n        return null;\n    }\n    /**\n     * Internal implementation of the `setValidators` method. Needs to be separated out into a\n     * different method, because it is called in the constructor and it can break cases where\n     * a control is extended.\n     */\n    _assignValidators(validators) {\n        this._rawValidators = Array.isArray(validators) ? validators.slice() : validators;\n        this._composedValidatorFn = coerceToValidator(this._rawValidators);\n    }\n    /**\n     * Internal implementation of the `setAsyncValidators` method. Needs to be separated out into a\n     * different method, because it is called in the constructor and it can break cases where\n     * a control is extended.\n     */\n    _assignAsyncValidators(validators) {\n        this._rawAsyncValidators = Array.isArray(validators) ? validators.slice() : validators;\n        this._composedAsyncValidatorFn = coerceToAsyncValidator(this._rawAsyncValidators);\n    }\n}\n\n/**\n * Tracks the value and validity state of a group of `FormControl` instances.\n *\n * A `FormGroup` aggregates the values of each child `FormControl` into one object,\n * with each control name as the key.  It calculates its status by reducing the status values\n * of its children. For example, if one of the controls in a group is invalid, the entire\n * group becomes invalid.\n *\n * `FormGroup` is one of the four fundamental building blocks used to define forms in Angular,\n * along with `FormControl`, `FormArray`, and `FormRecord`.\n *\n * When instantiating a `FormGroup`, pass in a collection of child controls as the first\n * argument. The key for each child registers the name for the control.\n *\n * `FormGroup` is intended for use cases where the keys are known ahead of time.\n * If you need to dynamically add and remove controls, use {@link FormRecord} instead.\n *\n * `FormGroup` accepts an optional type parameter `TControl`, which is an object type with inner\n * control types as values.\n *\n * @usageNotes\n *\n * ### Create a form group with 2 controls\n *\n * ```\n * const form = new FormGroup({\n *   first: new FormControl('Nancy', Validators.minLength(2)),\n *   last: new FormControl('Drew'),\n * });\n *\n * console.log(form.value);   // {first: 'Nancy', last; 'Drew'}\n * console.log(form.status);  // 'VALID'\n * ```\n *\n * ### The type argument, and optional controls\n *\n * `FormGroup` accepts one generic argument, which is an object containing its inner controls.\n * This type will usually be inferred automatically, but you can always specify it explicitly if you\n * wish.\n *\n * If you have controls that are optional (i.e. they can be removed, you can use the `?` in the\n * type):\n *\n * ```\n * const form = new FormGroup<{\n *   first: FormControl<string|null>,\n *   middle?: FormControl<string|null>, // Middle name is optional.\n *   last: FormControl<string|null>,\n * }>({\n *   first: new FormControl('Nancy'),\n *   last: new FormControl('Drew'),\n * });\n * ```\n *\n * ### Create a form group with a group-level validator\n *\n * You include group-level validators as the second arg, or group-level async\n * validators as the third arg. These come in handy when you want to perform validation\n * that considers the value of more than one child control.\n *\n * ```\n * const form = new FormGroup({\n *   password: new FormControl('', Validators.minLength(2)),\n *   passwordConfirm: new FormControl('', Validators.minLength(2)),\n * }, passwordMatchValidator);\n *\n *\n * function passwordMatchValidator(g: FormGroup) {\n *    return g.get('password').value === g.get('passwordConfirm').value\n *       ? null : {'mismatch': true};\n * }\n * ```\n *\n * Like `FormControl` instances, you choose to pass in\n * validators and async validators as part of an options object.\n *\n * ```\n * const form = new FormGroup({\n *   password: new FormControl('')\n *   passwordConfirm: new FormControl('')\n * }, { validators: passwordMatchValidator, asyncValidators: otherValidator });\n * ```\n *\n * ### Set the updateOn property for all controls in a form group\n *\n * The options object is used to set a default value for each child\n * control's `updateOn` property. If you set `updateOn` to `'blur'` at the\n * group level, all child controls default to 'blur', unless the child\n * has explicitly specified a different `updateOn` value.\n *\n * ```ts\n * const c = new FormGroup({\n *   one: new FormControl()\n * }, { updateOn: 'blur' });\n * ```\n *\n * ### Using a FormGroup with optional controls\n *\n * It is possible to have optional controls in a FormGroup. An optional control can be removed later\n * using `removeControl`, and can be omitted when calling `reset`. Optional controls must be\n * declared optional in the group's type.\n *\n * ```ts\n * const c = new FormGroup<{one?: FormControl<string>}>({\n *   one: new FormControl('')\n * });\n * ```\n *\n * Notice that `c.value.one` has type `string|null|undefined`. This is because calling `c.reset({})`\n * without providing the optional key `one` will cause it to become `null`.\n *\n * @publicApi\n */\nclass FormGroup extends AbstractControl {\n    /**\n     * Creates a new `FormGroup` instance.\n     *\n     * @param controls A collection of child controls. The key for each child is the name\n     * under which it is registered.\n     *\n     * @param validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or an `AbstractControlOptions` object that contains validation functions\n     * and a validation trigger.\n     *\n     * @param asyncValidator A single async validator or array of async validator functions\n     *\n     */\n    constructor(controls, validatorOrOpts, asyncValidator) {\n        super(pickValidators(validatorOrOpts), pickAsyncValidators(asyncValidator, validatorOrOpts));\n        this.controls = controls;\n        this._initObservables();\n        this._setUpdateStrategy(validatorOrOpts);\n        this._setUpControls();\n        this.updateValueAndValidity({\n            onlySelf: true,\n            // If `asyncValidator` is present, it will trigger control status change from `PENDING` to\n            // `VALID` or `INVALID`. The status should be broadcasted via the `statusChanges` observable,\n            // so we set `emitEvent` to `true` to allow that during the control creation process.\n            emitEvent: !!this.asyncValidator\n        });\n    }\n    registerControl(name, control) {\n        if (this.controls[name])\n            return this.controls[name];\n        this.controls[name] = control;\n        control.setParent(this);\n        control._registerOnCollectionChange(this._onCollectionChange);\n        return control;\n    }\n    addControl(name, control, options = {}) {\n        this.registerControl(name, control);\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n        this._onCollectionChange();\n    }\n    /**\n     * Remove a control from this group. In a strongly-typed group, required controls cannot be\n     * removed.\n     *\n     * This method also updates the value and validity of the control.\n     *\n     * @param name The control name to remove from the collection\n     * @param options Specifies whether this FormGroup instance should emit events after a\n     *     control is removed.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when the control is\n     * removed. When false, no events are emitted.\n     */\n    removeControl(name, options = {}) {\n        if (this.controls[name])\n            this.controls[name]._registerOnCollectionChange(() => { });\n        delete (this.controls[name]);\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n        this._onCollectionChange();\n    }\n    setControl(name, control, options = {}) {\n        if (this.controls[name])\n            this.controls[name]._registerOnCollectionChange(() => { });\n        delete (this.controls[name]);\n        if (control)\n            this.registerControl(name, control);\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n        this._onCollectionChange();\n    }\n    contains(controlName) {\n        return this.controls.hasOwnProperty(controlName) && this.controls[controlName].enabled;\n    }\n    /**\n     * Sets the value of the `FormGroup`. It accepts an object that matches\n     * the structure of the group, with control names as keys.\n     *\n     * @usageNotes\n     * ### Set the complete value for the form group\n     *\n     * ```\n     * const form = new FormGroup({\n     *   first: new FormControl(),\n     *   last: new FormControl()\n     * });\n     *\n     * console.log(form.value);   // {first: null, last: null}\n     *\n     * form.setValue({first: 'Nancy', last: 'Drew'});\n     * console.log(form.value);   // {first: 'Nancy', last: 'Drew'}\n     * ```\n     *\n     * @throws When strict checks fail, such as setting the value of a control\n     * that doesn't exist or if you exclude a value of a control that does exist.\n     *\n     * @param value The new value for the control that matches the structure of the group.\n     * @param options Configuration options that determine how the control propagates changes\n     * and emits events after the value changes.\n     * The configuration options are passed to the {@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default is\n     * false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control value is updated.\n     * When false, no events are emitted.\n     */\n    setValue(value, options = {}) {\n        assertAllValuesPresent(this, true, value);\n        Object.keys(value).forEach(name => {\n            assertControlPresent(this, true, name);\n            this.controls[name].setValue(value[name], { onlySelf: true, emitEvent: options.emitEvent });\n        });\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Patches the value of the `FormGroup`. It accepts an object with control\n     * names as keys, and does its best to match the values to the correct controls\n     * in the group.\n     *\n     * It accepts both super-sets and sub-sets of the group without throwing an error.\n     *\n     * @usageNotes\n     * ### Patch the value for a form group\n     *\n     * ```\n     * const form = new FormGroup({\n     *    first: new FormControl(),\n     *    last: new FormControl()\n     * });\n     * console.log(form.value);   // {first: null, last: null}\n     *\n     * form.patchValue({first: 'Nancy'});\n     * console.log(form.value);   // {first: 'Nancy', last: null}\n     * ```\n     *\n     * @param value The object that matches the structure of the group.\n     * @param options Configuration options that determine how the control propagates changes and\n     * emits events after the value is patched.\n     * * `onlySelf`: When true, each change only affects this control and not its parent. Default is\n     * true.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when the control value\n     * is updated. When false, no events are emitted. The configuration options are passed to\n     * the {@link AbstractControl#updateValueAndValidity updateValueAndValidity} method.\n     */\n    patchValue(value, options = {}) {\n        // Even though the `value` argument type doesn't allow `null` and `undefined` values, the\n        // `patchValue` can be called recursively and inner data structures might have these values, so\n        // we just ignore such cases when a field containing FormGroup instance receives `null` or\n        // `undefined` as a value.\n        if (value == null /* both `null` and `undefined` */)\n            return;\n        Object.keys(value).forEach(name => {\n            // The compiler cannot see through the uninstantiated conditional type of `this.controls`, so\n            // `as any` is required.\n            const control = this.controls[name];\n            if (control) {\n                control.patchValue(\n                /* Guaranteed to be present, due to the outer forEach. */ value[name], { onlySelf: true, emitEvent: options.emitEvent });\n            }\n        });\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Resets the `FormGroup`, marks all descendants `pristine` and `untouched` and sets\n     * the value of all descendants to their default values, or null if no defaults were provided.\n     *\n     * You reset to a specific form state by passing in a map of states\n     * that matches the structure of your form, with control names as keys. The state\n     * is a standalone value or a form state object with both a value and a disabled\n     * status.\n     *\n     * @param value Resets the control with an initial value,\n     * or an object that defines the initial value and disabled state.\n     *\n     * @param options Configuration options that determine how the control propagates changes\n     * and emits events when the group is reset.\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default is\n     * false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is reset.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     *\n     * @usageNotes\n     *\n     * ### Reset the form group values\n     *\n     * ```ts\n     * const form = new FormGroup({\n     *   first: new FormControl('first name'),\n     *   last: new FormControl('last name')\n     * });\n     *\n     * console.log(form.value);  // {first: 'first name', last: 'last name'}\n     *\n     * form.reset({ first: 'name', last: 'last name' });\n     *\n     * console.log(form.value);  // {first: 'name', last: 'last name'}\n     * ```\n     *\n     * ### Reset the form group values and disabled status\n     *\n     * ```\n     * const form = new FormGroup({\n     *   first: new FormControl('first name'),\n     *   last: new FormControl('last name')\n     * });\n     *\n     * form.reset({\n     *   first: {value: 'name', disabled: true},\n     *   last: 'last'\n     * });\n     *\n     * console.log(form.value);  // {last: 'last'}\n     * console.log(form.get('first').status);  // 'DISABLED'\n     * ```\n     */\n    reset(value = {}, options = {}) {\n        this._forEachChild((control, name) => {\n            control.reset(value ? value[name] : null, { onlySelf: true, emitEvent: options.emitEvent });\n        });\n        this._updatePristine(options);\n        this._updateTouched(options);\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * The aggregate value of the `FormGroup`, including any disabled controls.\n     *\n     * Retrieves all values regardless of disabled status.\n     */\n    getRawValue() {\n        return this._reduceChildren({}, (acc, control, name) => {\n            acc[name] = control.getRawValue();\n            return acc;\n        });\n    }\n    /** @internal */\n    _syncPendingControls() {\n        let subtreeUpdated = this._reduceChildren(false, (updated, child) => {\n            return child._syncPendingControls() ? true : updated;\n        });\n        if (subtreeUpdated)\n            this.updateValueAndValidity({ onlySelf: true });\n        return subtreeUpdated;\n    }\n    /** @internal */\n    _forEachChild(cb) {\n        Object.keys(this.controls).forEach(key => {\n            // The list of controls can change (for ex. controls might be removed) while the loop\n            // is running (as a result of invoking Forms API in `valueChanges` subscription), so we\n            // have to null check before invoking the callback.\n            const control = this.controls[key];\n            control && cb(control, key);\n        });\n    }\n    /** @internal */\n    _setUpControls() {\n        this._forEachChild((control) => {\n            control.setParent(this);\n            control._registerOnCollectionChange(this._onCollectionChange);\n        });\n    }\n    /** @internal */\n    _updateValue() {\n        this.value = this._reduceValue();\n    }\n    /** @internal */\n    _anyControls(condition) {\n        for (const [controlName, control] of Object.entries(this.controls)) {\n            if (this.contains(controlName) && condition(control)) {\n                return true;\n            }\n        }\n        return false;\n    }\n    /** @internal */\n    _reduceValue() {\n        let acc = {};\n        return this._reduceChildren(acc, (acc, control, name) => {\n            if (control.enabled || this.disabled) {\n                acc[name] = control.value;\n            }\n            return acc;\n        });\n    }\n    /** @internal */\n    _reduceChildren(initValue, fn) {\n        let res = initValue;\n        this._forEachChild((control, name) => {\n            res = fn(res, control, name);\n        });\n        return res;\n    }\n    /** @internal */\n    _allControlsDisabled() {\n        for (const controlName of Object.keys(this.controls)) {\n            if (this.controls[controlName].enabled) {\n                return false;\n            }\n        }\n        return Object.keys(this.controls).length > 0 || this.disabled;\n    }\n    /** @internal */\n    _find(name) {\n        return this.controls.hasOwnProperty(name) ?\n            this.controls[name] :\n            null;\n    }\n}\nconst UntypedFormGroup = FormGroup;\n/**\n * @description\n * Asserts that the given control is an instance of `FormGroup`\n *\n * @publicApi\n */\nconst isFormGroup = (control) => control instanceof FormGroup;\n/**\n * Tracks the value and validity state of a collection of `FormControl` instances, each of which has\n * the same value type.\n *\n * `FormRecord` is very similar to {@link FormGroup}, except it can be used with a dynamic keys,\n * with controls added and removed as needed.\n *\n * `FormRecord` accepts one generic argument, which describes the type of the controls it contains.\n *\n * @usageNotes\n *\n * ```\n * let numbers = new FormRecord({bill: new FormControl('415-123-456')});\n * numbers.addControl('bob', new FormControl('415-234-567'));\n * numbers.removeControl('bill');\n * ```\n *\n * @publicApi\n */\nclass FormRecord extends FormGroup {\n}\n/**\n * @description\n * Asserts that the given control is an instance of `FormRecord`\n *\n * @publicApi\n */\nconst isFormRecord = (control) => control instanceof FormRecord;\n\n/**\n * Token to provide to allow SetDisabledState to always be called when a CVA is added, regardless of\n * whether the control is disabled or enabled.\n *\n * @see {@link FormsModule#withconfig}\n */\nconst CALL_SET_DISABLED_STATE = new InjectionToken('CallSetDisabledState', { providedIn: 'root', factory: () => setDisabledStateDefault });\n/**\n * Whether to use the fixed setDisabledState behavior by default.\n */\nconst setDisabledStateDefault = 'always';\nfunction controlPath(name, parent) {\n    return [...parent.path, name];\n}\n/**\n * Links a Form control and a Form directive by setting up callbacks (such as `onChange`) on both\n * instances. This function is typically invoked when form directive is being initialized.\n *\n * @param control Form control instance that should be linked.\n * @param dir Directive that should be linked with a given control.\n */\nfunction setUpControl(control, dir, callSetDisabledState = setDisabledStateDefault) {\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        if (!control)\n            _throwError(dir, 'Cannot find control with');\n        if (!dir.valueAccessor)\n            _throwMissingValueAccessorError(dir);\n    }\n    setUpValidators(control, dir);\n    dir.valueAccessor.writeValue(control.value);\n    // The legacy behavior only calls the CVA's `setDisabledState` if the control is disabled.\n    // If the `callSetDisabledState` option is set to `always`, then this bug is fixed and\n    // the method is always called.\n    if (control.disabled || callSetDisabledState === 'always') {\n        dir.valueAccessor.setDisabledState?.(control.disabled);\n    }\n    setUpViewChangePipeline(control, dir);\n    setUpModelChangePipeline(control, dir);\n    setUpBlurPipeline(control, dir);\n    setUpDisabledChangeHandler(control, dir);\n}\n/**\n * Reverts configuration performed by the `setUpControl` control function.\n * Effectively disconnects form control with a given form directive.\n * This function is typically invoked when corresponding form directive is being destroyed.\n *\n * @param control Form control which should be cleaned up.\n * @param dir Directive that should be disconnected from a given control.\n * @param validateControlPresenceOnChange Flag that indicates whether onChange handler should\n *     contain asserts to verify that it's not called once directive is destroyed. We need this flag\n *     to avoid potentially breaking changes caused by better control cleanup introduced in #39235.\n */\nfunction cleanUpControl(control, dir, validateControlPresenceOnChange = true) {\n    const noop = () => {\n        if (validateControlPresenceOnChange && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            _noControlError(dir);\n        }\n    };\n    // The `valueAccessor` field is typically defined on FromControl and FormControlName directive\n    // instances and there is a logic in `selectValueAccessor` function that throws if it's not the\n    // case. We still check the presence of `valueAccessor` before invoking its methods to make sure\n    // that cleanup works correctly if app code or tests are setup to ignore the error thrown from\n    // `selectValueAccessor`. See https://github.com/angular/angular/issues/40521.\n    if (dir.valueAccessor) {\n        dir.valueAccessor.registerOnChange(noop);\n        dir.valueAccessor.registerOnTouched(noop);\n    }\n    cleanUpValidators(control, dir);\n    if (control) {\n        dir._invokeOnDestroyCallbacks();\n        control._registerOnCollectionChange(() => { });\n    }\n}\nfunction registerOnValidatorChange(validators, onChange) {\n    validators.forEach((validator) => {\n        if (validator.registerOnValidatorChange)\n            validator.registerOnValidatorChange(onChange);\n    });\n}\n/**\n * Sets up disabled change handler function on a given form control if ControlValueAccessor\n * associated with a given directive instance supports the `setDisabledState` call.\n *\n * @param control Form control where disabled change handler should be setup.\n * @param dir Corresponding directive instance associated with this control.\n */\nfunction setUpDisabledChangeHandler(control, dir) {\n    if (dir.valueAccessor.setDisabledState) {\n        const onDisabledChange = (isDisabled) => {\n            dir.valueAccessor.setDisabledState(isDisabled);\n        };\n        control.registerOnDisabledChange(onDisabledChange);\n        // Register a callback function to cleanup disabled change handler\n        // from a control instance when a directive is destroyed.\n        dir._registerOnDestroy(() => {\n            control._unregisterOnDisabledChange(onDisabledChange);\n        });\n    }\n}\n/**\n * Sets up sync and async directive validators on provided form control.\n * This function merges validators from the directive into the validators of the control.\n *\n * @param control Form control where directive validators should be setup.\n * @param dir Directive instance that contains validators to be setup.\n */\nfunction setUpValidators(control, dir) {\n    const validators = getControlValidators(control);\n    if (dir.validator !== null) {\n        control.setValidators(mergeValidators(validators, dir.validator));\n    }\n    else if (typeof validators === 'function') {\n        // If sync validators are represented by a single validator function, we force the\n        // `Validators.compose` call to happen by executing the `setValidators` function with\n        // an array that contains that function. We need this to avoid possible discrepancies in\n        // validators behavior, so sync validators are always processed by the `Validators.compose`.\n        // Note: we should consider moving this logic inside the `setValidators` function itself, so we\n        // have consistent behavior on AbstractControl API level. The same applies to the async\n        // validators logic below.\n        control.setValidators([validators]);\n    }\n    const asyncValidators = getControlAsyncValidators(control);\n    if (dir.asyncValidator !== null) {\n        control.setAsyncValidators(mergeValidators(asyncValidators, dir.asyncValidator));\n    }\n    else if (typeof asyncValidators === 'function') {\n        control.setAsyncValidators([asyncValidators]);\n    }\n    // Re-run validation when validator binding changes, e.g. minlength=3 -> minlength=4\n    const onValidatorChange = () => control.updateValueAndValidity();\n    registerOnValidatorChange(dir._rawValidators, onValidatorChange);\n    registerOnValidatorChange(dir._rawAsyncValidators, onValidatorChange);\n}\n/**\n * Cleans up sync and async directive validators on provided form control.\n * This function reverts the setup performed by the `setUpValidators` function, i.e.\n * removes directive-specific validators from a given control instance.\n *\n * @param control Form control from where directive validators should be removed.\n * @param dir Directive instance that contains validators to be removed.\n * @returns true if a control was updated as a result of this action.\n */\nfunction cleanUpValidators(control, dir) {\n    let isControlUpdated = false;\n    if (control !== null) {\n        if (dir.validator !== null) {\n            const validators = getControlValidators(control);\n            if (Array.isArray(validators) && validators.length > 0) {\n                // Filter out directive validator function.\n                const updatedValidators = validators.filter((validator) => validator !== dir.validator);\n                if (updatedValidators.length !== validators.length) {\n                    isControlUpdated = true;\n                    control.setValidators(updatedValidators);\n                }\n            }\n        }\n        if (dir.asyncValidator !== null) {\n            const asyncValidators = getControlAsyncValidators(control);\n            if (Array.isArray(asyncValidators) && asyncValidators.length > 0) {\n                // Filter out directive async validator function.\n                const updatedAsyncValidators = asyncValidators.filter((asyncValidator) => asyncValidator !== dir.asyncValidator);\n                if (updatedAsyncValidators.length !== asyncValidators.length) {\n                    isControlUpdated = true;\n                    control.setAsyncValidators(updatedAsyncValidators);\n                }\n            }\n        }\n    }\n    // Clear onValidatorChange callbacks by providing a noop function.\n    const noop = () => { };\n    registerOnValidatorChange(dir._rawValidators, noop);\n    registerOnValidatorChange(dir._rawAsyncValidators, noop);\n    return isControlUpdated;\n}\nfunction setUpViewChangePipeline(control, dir) {\n    dir.valueAccessor.registerOnChange((newValue) => {\n        control._pendingValue = newValue;\n        control._pendingChange = true;\n        control._pendingDirty = true;\n        if (control.updateOn === 'change')\n            updateControl(control, dir);\n    });\n}\nfunction setUpBlurPipeline(control, dir) {\n    dir.valueAccessor.registerOnTouched(() => {\n        control._pendingTouched = true;\n        if (control.updateOn === 'blur' && control._pendingChange)\n            updateControl(control, dir);\n        if (control.updateOn !== 'submit')\n            control.markAsTouched();\n    });\n}\nfunction updateControl(control, dir) {\n    if (control._pendingDirty)\n        control.markAsDirty();\n    control.setValue(control._pendingValue, { emitModelToViewChange: false });\n    dir.viewToModelUpdate(control._pendingValue);\n    control._pendingChange = false;\n}\nfunction setUpModelChangePipeline(control, dir) {\n    const onChange = (newValue, emitModelEvent) => {\n        // control -> view\n        dir.valueAccessor.writeValue(newValue);\n        // control -> ngModel\n        if (emitModelEvent)\n            dir.viewToModelUpdate(newValue);\n    };\n    control.registerOnChange(onChange);\n    // Register a callback function to cleanup onChange handler\n    // from a control instance when a directive is destroyed.\n    dir._registerOnDestroy(() => {\n        control._unregisterOnChange(onChange);\n    });\n}\n/**\n * Links a FormGroup or FormArray instance and corresponding Form directive by setting up validators\n * present in the view.\n *\n * @param control FormGroup or FormArray instance that should be linked.\n * @param dir Directive that provides view validators.\n */\nfunction setUpFormContainer(control, dir) {\n    if (control == null && (typeof ngDevMode === 'undefined' || ngDevMode))\n        _throwError(dir, 'Cannot find control with');\n    setUpValidators(control, dir);\n}\n/**\n * Reverts the setup performed by the `setUpFormContainer` function.\n *\n * @param control FormGroup or FormArray instance that should be cleaned up.\n * @param dir Directive that provided view validators.\n * @returns true if a control was updated as a result of this action.\n */\nfunction cleanUpFormContainer(control, dir) {\n    return cleanUpValidators(control, dir);\n}\nfunction _noControlError(dir) {\n    return _throwError(dir, 'There is no FormControl instance attached to form control element with');\n}\nfunction _throwError(dir, message) {\n    const messageEnd = _describeControlLocation(dir);\n    throw new Error(`${message} ${messageEnd}`);\n}\nfunction _describeControlLocation(dir) {\n    const path = dir.path;\n    if (path && path.length > 1)\n        return `path: '${path.join(' -> ')}'`;\n    if (path?.[0])\n        return `name: '${path}'`;\n    return 'unspecified name attribute';\n}\nfunction _throwMissingValueAccessorError(dir) {\n    const loc = _describeControlLocation(dir);\n    throw new ɵRuntimeError(-1203 /* RuntimeErrorCode.NG_MISSING_VALUE_ACCESSOR */, `No value accessor for form control ${loc}.`);\n}\nfunction _throwInvalidValueAccessorError(dir) {\n    const loc = _describeControlLocation(dir);\n    throw new ɵRuntimeError(1200 /* RuntimeErrorCode.NG_VALUE_ACCESSOR_NOT_PROVIDED */, `Value accessor was not provided as an array for form control with ${loc}. ` +\n        `Check that the \\`NG_VALUE_ACCESSOR\\` token is configured as a \\`multi: true\\` provider.`);\n}\nfunction isPropertyUpdated(changes, viewModel) {\n    if (!changes.hasOwnProperty('model'))\n        return false;\n    const change = changes['model'];\n    if (change.isFirstChange())\n        return true;\n    return !Object.is(viewModel, change.currentValue);\n}\nfunction isBuiltInAccessor(valueAccessor) {\n    // Check if a given value accessor is an instance of a class that directly extends\n    // `BuiltInControlValueAccessor` one.\n    return Object.getPrototypeOf(valueAccessor.constructor) === BuiltInControlValueAccessor;\n}\nfunction syncPendingControls(form, directives) {\n    form._syncPendingControls();\n    directives.forEach((dir) => {\n        const control = dir.control;\n        if (control.updateOn === 'submit' && control._pendingChange) {\n            dir.viewToModelUpdate(control._pendingValue);\n            control._pendingChange = false;\n        }\n    });\n}\n// TODO: vsavkin remove it once https://github.com/angular/angular/issues/3011 is implemented\nfunction selectValueAccessor(dir, valueAccessors) {\n    if (!valueAccessors)\n        return null;\n    if (!Array.isArray(valueAccessors) && (typeof ngDevMode === 'undefined' || ngDevMode))\n        _throwInvalidValueAccessorError(dir);\n    let defaultAccessor = undefined;\n    let builtinAccessor = undefined;\n    let customAccessor = undefined;\n    valueAccessors.forEach((v) => {\n        if (v.constructor === DefaultValueAccessor) {\n            defaultAccessor = v;\n        }\n        else if (isBuiltInAccessor(v)) {\n            if (builtinAccessor && (typeof ngDevMode === 'undefined' || ngDevMode))\n                _throwError(dir, 'More than one built-in value accessor matches form control with');\n            builtinAccessor = v;\n        }\n        else {\n            if (customAccessor && (typeof ngDevMode === 'undefined' || ngDevMode))\n                _throwError(dir, 'More than one custom value accessor matches form control with');\n            customAccessor = v;\n        }\n    });\n    if (customAccessor)\n        return customAccessor;\n    if (builtinAccessor)\n        return builtinAccessor;\n    if (defaultAccessor)\n        return defaultAccessor;\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        _throwError(dir, 'No valid value accessor for form control with');\n    }\n    return null;\n}\nfunction removeListItem$1(list, el) {\n    const index = list.indexOf(el);\n    if (index > -1)\n        list.splice(index, 1);\n}\n// TODO(kara): remove after deprecation period\nfunction _ngModelWarning(name, type, instance, warningConfig) {\n    if (warningConfig === 'never')\n        return;\n    if (((warningConfig === null || warningConfig === 'once') && !type._ngModelWarningSentOnce) ||\n        (warningConfig === 'always' && !instance._ngModelWarningSent)) {\n        console.warn(ngModelWarning(name));\n        type._ngModelWarningSentOnce = true;\n        instance._ngModelWarningSent = true;\n    }\n}\n\nconst formDirectiveProvider$1 = {\n    provide: ControlContainer,\n    useExisting: forwardRef(() => NgForm)\n};\nconst resolvedPromise$1 = (() => Promise.resolve())();\n/**\n * @description\n * Creates a top-level `FormGroup` instance and binds it to a form\n * to track aggregate form value and validation status.\n *\n * As soon as you import the `FormsModule`, this directive becomes active by default on\n * all `<form>` tags.  You don't need to add a special selector.\n *\n * You optionally export the directive into a local template variable using `ngForm` as the key\n * (ex: `#myForm=\"ngForm\"`). This is optional, but useful.  Many properties from the underlying\n * `FormGroup` instance are duplicated on the directive itself, so a reference to it\n * gives you access to the aggregate value and validity status of the form, as well as\n * user interaction properties like `dirty` and `touched`.\n *\n * To register child controls with the form, use `NgModel` with a `name`\n * attribute. You may use `NgModelGroup` to create sub-groups within the form.\n *\n * If necessary, listen to the directive's `ngSubmit` event to be notified when the user has\n * triggered a form submission. The `ngSubmit` event emits the original form\n * submission event.\n *\n * In template driven forms, all `<form>` tags are automatically tagged as `NgForm`.\n * To import the `FormsModule` but skip its usage in some forms,\n * for example, to use native HTML5 validation, add the `ngNoForm` and the `<form>`\n * tags won't create an `NgForm` directive. In reactive forms, using `ngNoForm` is\n * unnecessary because the `<form>` tags are inert. In that case, you would\n * refrain from using the `formGroup` directive.\n *\n * @usageNotes\n *\n * ### Listening for form submission\n *\n * The following example shows how to capture the form values from the \"ngSubmit\" event.\n *\n * {@example forms/ts/simpleForm/simple_form_example.ts region='Component'}\n *\n * ### Setting the update options\n *\n * The following example shows you how to change the \"updateOn\" option from its default using\n * ngFormOptions.\n *\n * ```html\n * <form [ngFormOptions]=\"{updateOn: 'blur'}\">\n *    <input name=\"one\" ngModel>  <!-- this ngModel will update on blur -->\n * </form>\n * ```\n *\n * ### Native DOM validation UI\n *\n * In order to prevent the native DOM form validation UI from interfering with Angular's form\n * validation, Angular automatically adds the `novalidate` attribute on any `<form>` whenever\n * `FormModule` or `ReactiveFormModule` are imported into the application.\n * If you want to explicitly enable native DOM validation UI with Angular forms, you can add the\n * `ngNativeValidate` attribute to the `<form>` element:\n *\n * ```html\n * <form ngNativeValidate>\n *   ...\n * </form>\n * ```\n *\n * @ngModule FormsModule\n * @publicApi\n */\nclass NgForm extends ControlContainer {\n    constructor(validators, asyncValidators, callSetDisabledState) {\n        super();\n        this.callSetDisabledState = callSetDisabledState;\n        /**\n         * @description\n         * Returns whether the form submission has been triggered.\n         */\n        this.submitted = false;\n        this._directives = new Set();\n        /**\n         * @description\n         * Event emitter for the \"ngSubmit\" event\n         */\n        this.ngSubmit = new EventEmitter();\n        this.form =\n            new FormGroup({}, composeValidators(validators), composeAsyncValidators(asyncValidators));\n    }\n    /** @nodoc */\n    ngAfterViewInit() {\n        this._setUpdateStrategy();\n    }\n    /**\n     * @description\n     * The directive instance.\n     */\n    get formDirective() {\n        return this;\n    }\n    /**\n     * @description\n     * The internal `FormGroup` instance.\n     */\n    get control() {\n        return this.form;\n    }\n    /**\n     * @description\n     * Returns an array representing the path to this group. Because this directive\n     * always lives at the top level of a form, it is always an empty array.\n     */\n    get path() {\n        return [];\n    }\n    /**\n     * @description\n     * Returns a map of the controls in this group.\n     */\n    get controls() {\n        return this.form.controls;\n    }\n    /**\n     * @description\n     * Method that sets up the control directive in this group, re-calculates its value\n     * and validity, and adds the instance to the internal list of directives.\n     *\n     * @param dir The `NgModel` directive instance.\n     */\n    addControl(dir) {\n        resolvedPromise$1.then(() => {\n            const container = this._findContainer(dir.path);\n            dir.control =\n                container.registerControl(dir.name, dir.control);\n            setUpControl(dir.control, dir, this.callSetDisabledState);\n            dir.control.updateValueAndValidity({ emitEvent: false });\n            this._directives.add(dir);\n        });\n    }\n    /**\n     * @description\n     * Retrieves the `FormControl` instance from the provided `NgModel` directive.\n     *\n     * @param dir The `NgModel` directive instance.\n     */\n    getControl(dir) {\n        return this.form.get(dir.path);\n    }\n    /**\n     * @description\n     * Removes the `NgModel` instance from the internal list of directives\n     *\n     * @param dir The `NgModel` directive instance.\n     */\n    removeControl(dir) {\n        resolvedPromise$1.then(() => {\n            const container = this._findContainer(dir.path);\n            if (container) {\n                container.removeControl(dir.name);\n            }\n            this._directives.delete(dir);\n        });\n    }\n    /**\n     * @description\n     * Adds a new `NgModelGroup` directive instance to the form.\n     *\n     * @param dir The `NgModelGroup` directive instance.\n     */\n    addFormGroup(dir) {\n        resolvedPromise$1.then(() => {\n            const container = this._findContainer(dir.path);\n            const group = new FormGroup({});\n            setUpFormContainer(group, dir);\n            container.registerControl(dir.name, group);\n            group.updateValueAndValidity({ emitEvent: false });\n        });\n    }\n    /**\n     * @description\n     * Removes the `NgModelGroup` directive instance from the form.\n     *\n     * @param dir The `NgModelGroup` directive instance.\n     */\n    removeFormGroup(dir) {\n        resolvedPromise$1.then(() => {\n            const container = this._findContainer(dir.path);\n            if (container) {\n                container.removeControl(dir.name);\n            }\n        });\n    }\n    /**\n     * @description\n     * Retrieves the `FormGroup` for a provided `NgModelGroup` directive instance\n     *\n     * @param dir The `NgModelGroup` directive instance.\n     */\n    getFormGroup(dir) {\n        return this.form.get(dir.path);\n    }\n    /**\n     * Sets the new value for the provided `NgControl` directive.\n     *\n     * @param dir The `NgControl` directive instance.\n     * @param value The new value for the directive's control.\n     */\n    updateModel(dir, value) {\n        resolvedPromise$1.then(() => {\n            const ctrl = this.form.get(dir.path);\n            ctrl.setValue(value);\n        });\n    }\n    /**\n     * @description\n     * Sets the value for this `FormGroup`.\n     *\n     * @param value The new value\n     */\n    setValue(value) {\n        this.control.setValue(value);\n    }\n    /**\n     * @description\n     * Method called when the \"submit\" event is triggered on the form.\n     * Triggers the `ngSubmit` emitter to emit the \"submit\" event as its payload.\n     *\n     * @param $event The \"submit\" event object\n     */\n    onSubmit($event) {\n        this.submitted = true;\n        syncPendingControls(this.form, this._directives);\n        this.ngSubmit.emit($event);\n        // Forms with `method=\"dialog\"` have some special behavior\n        // that won't reload the page and that shouldn't be prevented.\n        return $event?.target?.method === 'dialog';\n    }\n    /**\n     * @description\n     * Method called when the \"reset\" event is triggered on the form.\n     */\n    onReset() {\n        this.resetForm();\n    }\n    /**\n     * @description\n     * Resets the form to an initial value and resets its submitted status.\n     *\n     * @param value The new value for the form.\n     */\n    resetForm(value = undefined) {\n        this.form.reset(value);\n        this.submitted = false;\n    }\n    _setUpdateStrategy() {\n        if (this.options && this.options.updateOn != null) {\n            this.form._updateOn = this.options.updateOn;\n        }\n    }\n    _findContainer(path) {\n        path.pop();\n        return path.length ? this.form.get(path) : this.form;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgForm, deps: [{ token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }, { token: CALL_SET_DISABLED_STATE, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgForm, selector: \"form:not([ngNoForm]):not([formGroup]),ng-form,[ngForm]\", inputs: { options: [\"ngFormOptions\", \"options\"] }, outputs: { ngSubmit: \"ngSubmit\" }, host: { listeners: { \"submit\": \"onSubmit($event)\", \"reset\": \"onReset()\" } }, providers: [formDirectiveProvider$1], exportAs: [\"ngForm\"], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgForm, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'form:not([ngNoForm]):not([formGroup]),ng-form,[ngForm]',\n                    providers: [formDirectiveProvider$1],\n                    host: { '(submit)': 'onSubmit($event)', '(reset)': 'onReset()' },\n                    outputs: ['ngSubmit'],\n                    exportAs: 'ngForm'\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [CALL_SET_DISABLED_STATE]\n                }] }]; }, propDecorators: { options: [{\n                type: Input,\n                args: ['ngFormOptions']\n            }] } });\n\nfunction removeListItem(list, el) {\n    const index = list.indexOf(el);\n    if (index > -1)\n        list.splice(index, 1);\n}\n\nfunction isFormControlState(formState) {\n    return typeof formState === 'object' && formState !== null &&\n        Object.keys(formState).length === 2 && 'value' in formState && 'disabled' in formState;\n}\nconst FormControl = (class FormControl extends AbstractControl {\n    constructor(\n    // formState and defaultValue will only be null if T is nullable\n    formState = null, validatorOrOpts, asyncValidator) {\n        super(pickValidators(validatorOrOpts), pickAsyncValidators(asyncValidator, validatorOrOpts));\n        /** @publicApi */\n        this.defaultValue = null;\n        /** @internal */\n        this._onChange = [];\n        /** @internal */\n        this._pendingChange = false;\n        this._applyFormState(formState);\n        this._setUpdateStrategy(validatorOrOpts);\n        this._initObservables();\n        this.updateValueAndValidity({\n            onlySelf: true,\n            // If `asyncValidator` is present, it will trigger control status change from `PENDING` to\n            // `VALID` or `INVALID`.\n            // The status should be broadcasted via the `statusChanges` observable, so we set\n            // `emitEvent` to `true` to allow that during the control creation process.\n            emitEvent: !!this.asyncValidator\n        });\n        if (isOptionsObj(validatorOrOpts) &&\n            (validatorOrOpts.nonNullable || validatorOrOpts.initialValueIsDefault)) {\n            if (isFormControlState(formState)) {\n                this.defaultValue = formState.value;\n            }\n            else {\n                this.defaultValue = formState;\n            }\n        }\n    }\n    setValue(value, options = {}) {\n        this.value = this._pendingValue = value;\n        if (this._onChange.length && options.emitModelToViewChange !== false) {\n            this._onChange.forEach((changeFn) => changeFn(this.value, options.emitViewToModelChange !== false));\n        }\n        this.updateValueAndValidity(options);\n    }\n    patchValue(value, options = {}) {\n        this.setValue(value, options);\n    }\n    reset(formState = this.defaultValue, options = {}) {\n        this._applyFormState(formState);\n        this.markAsPristine(options);\n        this.markAsUntouched(options);\n        this.setValue(this.value, options);\n        this._pendingChange = false;\n    }\n    /**  @internal */\n    _updateValue() { }\n    /**  @internal */\n    _anyControls(condition) {\n        return false;\n    }\n    /**  @internal */\n    _allControlsDisabled() {\n        return this.disabled;\n    }\n    registerOnChange(fn) {\n        this._onChange.push(fn);\n    }\n    /** @internal */\n    _unregisterOnChange(fn) {\n        removeListItem(this._onChange, fn);\n    }\n    registerOnDisabledChange(fn) {\n        this._onDisabledChange.push(fn);\n    }\n    /** @internal */\n    _unregisterOnDisabledChange(fn) {\n        removeListItem(this._onDisabledChange, fn);\n    }\n    /** @internal */\n    _forEachChild(cb) { }\n    /** @internal */\n    _syncPendingControls() {\n        if (this.updateOn === 'submit') {\n            if (this._pendingDirty)\n                this.markAsDirty();\n            if (this._pendingTouched)\n                this.markAsTouched();\n            if (this._pendingChange) {\n                this.setValue(this._pendingValue, { onlySelf: true, emitModelToViewChange: false });\n                return true;\n            }\n        }\n        return false;\n    }\n    _applyFormState(formState) {\n        if (isFormControlState(formState)) {\n            this.value = this._pendingValue = formState.value;\n            formState.disabled ? this.disable({ onlySelf: true, emitEvent: false }) :\n                this.enable({ onlySelf: true, emitEvent: false });\n        }\n        else {\n            this.value = this._pendingValue = formState;\n        }\n    }\n});\nconst UntypedFormControl = FormControl;\n/**\n * @description\n * Asserts that the given control is an instance of `FormControl`\n *\n * @publicApi\n */\nconst isFormControl = (control) => control instanceof FormControl;\n\n/**\n * @description\n * A base class for code shared between the `NgModelGroup` and `FormGroupName` directives.\n *\n * @publicApi\n */\nclass AbstractFormGroupDirective extends ControlContainer {\n    /** @nodoc */\n    ngOnInit() {\n        this._checkParentType();\n        // Register the group with its parent group.\n        this.formDirective.addFormGroup(this);\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (this.formDirective) {\n            // Remove the group from its parent group.\n            this.formDirective.removeFormGroup(this);\n        }\n    }\n    /**\n     * @description\n     * The `FormGroup` bound to this directive.\n     */\n    get control() {\n        return this.formDirective.getFormGroup(this);\n    }\n    /**\n     * @description\n     * The path to this group from the top-level directive.\n     */\n    get path() {\n        return controlPath(this.name == null ? this.name : this.name.toString(), this._parent);\n    }\n    /**\n     * @description\n     * The top-level directive for this group if present, otherwise null.\n     */\n    get formDirective() {\n        return this._parent ? this._parent.formDirective : null;\n    }\n    /** @internal */\n    _checkParentType() { }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: AbstractFormGroupDirective, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: AbstractFormGroupDirective, usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: AbstractFormGroupDirective, decorators: [{\n            type: Directive\n        }] });\n\nfunction modelParentException() {\n    return new ɵRuntimeError(1350 /* RuntimeErrorCode.NGMODEL_IN_FORM_GROUP */, `\n    ngModel cannot be used to register form controls with a parent formGroup directive.  Try using\n    formGroup's partner directive \"formControlName\" instead.  Example:\n\n    ${formControlNameExample}\n\n    Or, if you'd like to avoid registering this form control, indicate that it's standalone in ngModelOptions:\n\n    Example:\n\n    ${ngModelWithFormGroupExample}`);\n}\nfunction formGroupNameException() {\n    return new ɵRuntimeError(1351 /* RuntimeErrorCode.NGMODEL_IN_FORM_GROUP_NAME */, `\n    ngModel cannot be used to register form controls with a parent formGroupName or formArrayName directive.\n\n    Option 1: Use formControlName instead of ngModel (reactive strategy):\n\n    ${formGroupNameExample}\n\n    Option 2:  Update ngModel's parent be ngModelGroup (template-driven strategy):\n\n    ${ngModelGroupExample}`);\n}\nfunction missingNameException() {\n    return new ɵRuntimeError(1352 /* RuntimeErrorCode.NGMODEL_WITHOUT_NAME */, `If ngModel is used within a form tag, either the name attribute must be set or the form\n    control must be defined as 'standalone' in ngModelOptions.\n\n    Example 1: <input [(ngModel)]=\"person.firstName\" name=\"first\">\n    Example 2: <input [(ngModel)]=\"person.firstName\" [ngModelOptions]=\"{standalone: true}\">`);\n}\nfunction modelGroupParentException() {\n    return new ɵRuntimeError(1353 /* RuntimeErrorCode.NGMODELGROUP_IN_FORM_GROUP */, `\n    ngModelGroup cannot be used with a parent formGroup directive.\n\n    Option 1: Use formGroupName instead of ngModelGroup (reactive strategy):\n\n    ${formGroupNameExample}\n\n    Option 2:  Use a regular form tag instead of the formGroup directive (template-driven strategy):\n\n    ${ngModelGroupExample}`);\n}\n\nconst modelGroupProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef(() => NgModelGroup)\n};\n/**\n * @description\n * Creates and binds a `FormGroup` instance to a DOM element.\n *\n * This directive can only be used as a child of `NgForm` (within `<form>` tags).\n *\n * Use this directive to validate a sub-group of your form separately from the\n * rest of your form, or if some values in your domain model make more sense\n * to consume together in a nested object.\n *\n * Provide a name for the sub-group and it will become the key\n * for the sub-group in the form's full value. If you need direct access, export the directive into\n * a local template variable using `ngModelGroup` (ex: `#myGroup=\"ngModelGroup\"`).\n *\n * @usageNotes\n *\n * ### Consuming controls in a grouping\n *\n * The following example shows you how to combine controls together in a sub-group\n * of the form.\n *\n * {@example forms/ts/ngModelGroup/ng_model_group_example.ts region='Component'}\n *\n * @ngModule FormsModule\n * @publicApi\n */\nclass NgModelGroup extends AbstractFormGroupDirective {\n    constructor(parent, validators, asyncValidators) {\n        super();\n        /**\n         * @description\n         * Tracks the name of the `NgModelGroup` bound to the directive. The name corresponds\n         * to a key in the parent `NgForm`.\n         */\n        this.name = '';\n        this._parent = parent;\n        this._setValidators(validators);\n        this._setAsyncValidators(asyncValidators);\n    }\n    /** @internal */\n    _checkParentType() {\n        if (!(this._parent instanceof NgModelGroup) && !(this._parent instanceof NgForm) &&\n            (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throw modelGroupParentException();\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgModelGroup, deps: [{ token: ControlContainer, host: true, skipSelf: true }, { token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgModelGroup, selector: \"[ngModelGroup]\", inputs: { name: [\"ngModelGroup\", \"name\"] }, providers: [modelGroupProvider], exportAs: [\"ngModelGroup\"], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgModelGroup, decorators: [{\n            type: Directive,\n            args: [{ selector: '[ngModelGroup]', providers: [modelGroupProvider], exportAs: 'ngModelGroup' }]\n        }], ctorParameters: function () { return [{ type: ControlContainer, decorators: [{\n                    type: Host\n                }, {\n                    type: SkipSelf\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }]; }, propDecorators: { name: [{\n                type: Input,\n                args: ['ngModelGroup']\n            }] } });\n\nconst formControlBinding$1 = {\n    provide: NgControl,\n    useExisting: forwardRef(() => NgModel)\n};\n/**\n * `ngModel` forces an additional change detection run when its inputs change:\n * E.g.:\n * ```\n * <div>{{myModel.valid}}</div>\n * <input [(ngModel)]=\"myValue\" #myModel=\"ngModel\">\n * ```\n * I.e. `ngModel` can export itself on the element and then be used in the template.\n * Normally, this would result in expressions before the `input` that use the exported directive\n * to have an old value as they have been\n * dirty checked before. As this is a very common case for `ngModel`, we added this second change\n * detection run.\n *\n * Notes:\n * - this is just one extra run no matter how many `ngModel`s have been changed.\n * - this is a general problem when using `exportAs` for directives!\n */\nconst resolvedPromise = (() => Promise.resolve())();\n/**\n * @description\n * Creates a `FormControl` instance from a [domain\n * model](https://en.wikipedia.org/wiki/Domain_model) and binds it to a form control element.\n *\n * The `FormControl` instance tracks the value, user interaction, and\n * validation status of the control and keeps the view synced with the model. If used\n * within a parent form, the directive also registers itself with the form as a child\n * control.\n *\n * This directive is used by itself or as part of a larger form. Use the\n * `ngModel` selector to activate it.\n *\n * It accepts a domain model as an optional `Input`. If you have a one-way binding\n * to `ngModel` with `[]` syntax, changing the domain model's value in the component\n * class sets the value in the view. If you have a two-way binding with `[()]` syntax\n * (also known as 'banana-in-a-box syntax'), the value in the UI always syncs back to\n * the domain model in your class.\n *\n * To inspect the properties of the associated `FormControl` (like the validity state),\n * export the directive into a local template variable using `ngModel` as the key (ex:\n * `#myVar=\"ngModel\"`). You can then access the control using the directive's `control` property.\n * However, the most commonly used properties (like `valid` and `dirty`) also exist on the control\n * for direct access. See a full list of properties directly available in\n * `AbstractControlDirective`.\n *\n * @see {@link RadioControlValueAccessor}\n * @see {@link SelectControlValueAccessor}\n *\n * @usageNotes\n *\n * ### Using ngModel on a standalone control\n *\n * The following examples show a simple standalone control using `ngModel`:\n *\n * {@example forms/ts/simpleNgModel/simple_ng_model_example.ts region='Component'}\n *\n * When using the `ngModel` within `<form>` tags, you'll also need to supply a `name` attribute\n * so that the control can be registered with the parent form under that name.\n *\n * In the context of a parent form, it's often unnecessary to include one-way or two-way binding,\n * as the parent form syncs the value for you. You access its properties by exporting it into a\n * local template variable using `ngForm` such as (`#f=\"ngForm\"`). Use the variable where\n * needed on form submission.\n *\n * If you do need to populate initial values into your form, using a one-way binding for\n * `ngModel` tends to be sufficient as long as you use the exported form's value rather\n * than the domain model's value on submit.\n *\n * ### Using ngModel within a form\n *\n * The following example shows controls using `ngModel` within a form:\n *\n * {@example forms/ts/simpleForm/simple_form_example.ts region='Component'}\n *\n * ### Using a standalone ngModel within a group\n *\n * The following example shows you how to use a standalone ngModel control\n * within a form. This controls the display of the form, but doesn't contain form data.\n *\n * ```html\n * <form>\n *   <input name=\"login\" ngModel placeholder=\"Login\">\n *   <input type=\"checkbox\" ngModel [ngModelOptions]=\"{standalone: true}\"> Show more options?\n * </form>\n * <!-- form value: {login: ''} -->\n * ```\n *\n * ### Setting the ngModel `name` attribute through options\n *\n * The following example shows you an alternate way to set the name attribute. Here,\n * an attribute identified as name is used within a custom form control component. To still be able\n * to specify the NgModel's name, you must specify it using the `ngModelOptions` input instead.\n *\n * ```html\n * <form>\n *   <my-custom-form-control name=\"Nancy\" ngModel [ngModelOptions]=\"{name: 'user'}\">\n *   </my-custom-form-control>\n * </form>\n * <!-- form value: {user: ''} -->\n * ```\n *\n * @ngModule FormsModule\n * @publicApi\n */\nclass NgModel extends NgControl {\n    constructor(parent, validators, asyncValidators, valueAccessors, _changeDetectorRef, callSetDisabledState) {\n        super();\n        this._changeDetectorRef = _changeDetectorRef;\n        this.callSetDisabledState = callSetDisabledState;\n        this.control = new FormControl();\n        /** @internal */\n        this._registered = false;\n        /**\n         * @description\n         * Tracks the name bound to the directive. If a parent form exists, it\n         * uses this name as a key to retrieve this control's value.\n         */\n        this.name = '';\n        /**\n         * @description\n         * Event emitter for producing the `ngModelChange` event after\n         * the view model updates.\n         */\n        this.update = new EventEmitter();\n        this._parent = parent;\n        this._setValidators(validators);\n        this._setAsyncValidators(asyncValidators);\n        this.valueAccessor = selectValueAccessor(this, valueAccessors);\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        this._checkForErrors();\n        if (!this._registered || 'name' in changes) {\n            if (this._registered) {\n                this._checkName();\n                if (this.formDirective) {\n                    // We can't call `formDirective.removeControl(this)`, because the `name` has already been\n                    // changed. We also can't reset the name temporarily since the logic in `removeControl`\n                    // is inside a promise and it won't run immediately. We work around it by giving it an\n                    // object with the same shape instead.\n                    const oldName = changes['name'].previousValue;\n                    this.formDirective.removeControl({ name: oldName, path: this._getPath(oldName) });\n                }\n            }\n            this._setUpControl();\n        }\n        if ('isDisabled' in changes) {\n            this._updateDisabled(changes);\n        }\n        if (isPropertyUpdated(changes, this.viewModel)) {\n            this._updateValue(this.model);\n            this.viewModel = this.model;\n        }\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this.formDirective && this.formDirective.removeControl(this);\n    }\n    /**\n     * @description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     */\n    get path() {\n        return this._getPath(this.name);\n    }\n    /**\n     * @description\n     * The top-level directive for this control if present, otherwise null.\n     */\n    get formDirective() {\n        return this._parent ? this._parent.formDirective : null;\n    }\n    /**\n     * @description\n     * Sets the new value for the view model and emits an `ngModelChange` event.\n     *\n     * @param newValue The new value emitted by `ngModelChange`.\n     */\n    viewToModelUpdate(newValue) {\n        this.viewModel = newValue;\n        this.update.emit(newValue);\n    }\n    _setUpControl() {\n        this._setUpdateStrategy();\n        this._isStandalone() ? this._setUpStandalone() : this.formDirective.addControl(this);\n        this._registered = true;\n    }\n    _setUpdateStrategy() {\n        if (this.options && this.options.updateOn != null) {\n            this.control._updateOn = this.options.updateOn;\n        }\n    }\n    _isStandalone() {\n        return !this._parent || !!(this.options && this.options.standalone);\n    }\n    _setUpStandalone() {\n        setUpControl(this.control, this, this.callSetDisabledState);\n        this.control.updateValueAndValidity({ emitEvent: false });\n    }\n    _checkForErrors() {\n        if (!this._isStandalone()) {\n            this._checkParentType();\n        }\n        this._checkName();\n    }\n    _checkParentType() {\n        if (typeof ngDevMode === 'undefined' || ngDevMode) {\n            if (!(this._parent instanceof NgModelGroup) &&\n                this._parent instanceof AbstractFormGroupDirective) {\n                throw formGroupNameException();\n            }\n            else if (!(this._parent instanceof NgModelGroup) && !(this._parent instanceof NgForm)) {\n                throw modelParentException();\n            }\n        }\n    }\n    _checkName() {\n        if (this.options && this.options.name)\n            this.name = this.options.name;\n        if (!this._isStandalone() && !this.name && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throw missingNameException();\n        }\n    }\n    _updateValue(value) {\n        resolvedPromise.then(() => {\n            this.control.setValue(value, { emitViewToModelChange: false });\n            this._changeDetectorRef?.markForCheck();\n        });\n    }\n    _updateDisabled(changes) {\n        const disabledValue = changes['isDisabled'].currentValue;\n        // checking for 0 to avoid breaking change\n        const isDisabled = disabledValue !== 0 && booleanAttribute(disabledValue);\n        resolvedPromise.then(() => {\n            if (isDisabled && !this.control.disabled) {\n                this.control.disable();\n            }\n            else if (!isDisabled && this.control.disabled) {\n                this.control.enable();\n            }\n            this._changeDetectorRef?.markForCheck();\n        });\n    }\n    _getPath(controlName) {\n        return this._parent ? controlPath(controlName, this._parent) : [controlName];\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgModel, deps: [{ token: ControlContainer, host: true, optional: true }, { token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }, { token: NG_VALUE_ACCESSOR, optional: true, self: true }, { token: ChangeDetectorRef, optional: true }, { token: CALL_SET_DISABLED_STATE, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgModel, selector: \"[ngModel]:not([formControlName]):not([formControl])\", inputs: { name: \"name\", isDisabled: [\"disabled\", \"isDisabled\"], model: [\"ngModel\", \"model\"], options: [\"ngModelOptions\", \"options\"] }, outputs: { update: \"ngModelChange\" }, providers: [formControlBinding$1], exportAs: [\"ngModel\"], usesInheritance: true, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgModel, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngModel]:not([formControlName]):not([formControl])',\n                    providers: [formControlBinding$1],\n                    exportAs: 'ngModel'\n                }]\n        }], ctorParameters: function () { return [{ type: ControlContainer, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALUE_ACCESSOR]\n                }] }, { type: i0.ChangeDetectorRef, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [ChangeDetectorRef]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [CALL_SET_DISABLED_STATE]\n                }] }]; }, propDecorators: { name: [{\n                type: Input\n            }], isDisabled: [{\n                type: Input,\n                args: ['disabled']\n            }], model: [{\n                type: Input,\n                args: ['ngModel']\n            }], options: [{\n                type: Input,\n                args: ['ngModelOptions']\n            }], update: [{\n                type: Output,\n                args: ['ngModelChange']\n            }] } });\n\n/**\n * @description\n *\n * Adds `novalidate` attribute to all forms by default.\n *\n * `novalidate` is used to disable browser's native form validation.\n *\n * If you want to use native validation with Angular forms, just add `ngNativeValidate` attribute:\n *\n * ```\n * <form ngNativeValidate></form>\n * ```\n *\n * @publicApi\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n */\nclass ɵNgNoValidate {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵNgNoValidate, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: ɵNgNoValidate, selector: \"form:not([ngNoForm]):not([ngNativeValidate])\", host: { attributes: { \"novalidate\": \"\" } }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵNgNoValidate, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'form:not([ngNoForm]):not([ngNativeValidate])',\n                    host: { 'novalidate': '' },\n                }]\n        }] });\n\nconst NUMBER_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef(() => NumberValueAccessor),\n    multi: true\n};\n/**\n * @description\n * The `ControlValueAccessor` for writing a number value and listening to number input changes.\n * The value accessor is used by the `FormControlDirective`, `FormControlName`, and `NgModel`\n * directives.\n *\n * @usageNotes\n *\n * ### Using a number input with a reactive form.\n *\n * The following example shows how to use a number input with a reactive form.\n *\n * ```ts\n * const totalCountControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"number\" [formControl]=\"totalCountControl\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass NumberValueAccessor extends BuiltInControlValueAccessor {\n    /**\n     * Sets the \"value\" property on the input element.\n     * @nodoc\n     */\n    writeValue(value) {\n        // The value needs to be normalized for IE9, otherwise it is set to 'null' when null\n        const normalizedValue = value == null ? '' : value;\n        this.setProperty('value', normalizedValue);\n    }\n    /**\n     * Registers a function called when the control value changes.\n     * @nodoc\n     */\n    registerOnChange(fn) {\n        this.onChange = (value) => {\n            fn(value == '' ? null : parseFloat(value));\n        };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NumberValueAccessor, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NumberValueAccessor, selector: \"input[type=number][formControlName],input[type=number][formControl],input[type=number][ngModel]\", host: { listeners: { \"input\": \"onChange($event.target.value)\", \"blur\": \"onTouched()\" } }, providers: [NUMBER_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NumberValueAccessor, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input[type=number][formControlName],input[type=number][formControl],input[type=number][ngModel]',\n                    host: { '(input)': 'onChange($event.target.value)', '(blur)': 'onTouched()' },\n                    providers: [NUMBER_VALUE_ACCESSOR]\n                }]\n        }] });\n\nconst RADIO_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef(() => RadioControlValueAccessor),\n    multi: true\n};\nfunction throwNameError() {\n    throw new ɵRuntimeError(1202 /* RuntimeErrorCode.NAME_AND_FORM_CONTROL_NAME_MUST_MATCH */, `\n      If you define both a name and a formControlName attribute on your radio button, their values\n      must match. Ex: <input type=\"radio\" formControlName=\"food\" name=\"food\">\n    `);\n}\n/**\n * Internal-only NgModule that works as a host for the `RadioControlRegistry` tree-shakable\n * provider. Note: the `InternalFormsSharedModule` can not be used here directly, since it's\n * declared *after* the `RadioControlRegistry` class and the `providedIn` doesn't support\n * `forwardRef` logic.\n */\nclass RadioControlRegistryModule {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlRegistryModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlRegistryModule }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlRegistryModule }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlRegistryModule, decorators: [{\n            type: NgModule\n        }] });\n/**\n * @description\n * Class used by Angular to track radio buttons. For internal use only.\n */\nclass RadioControlRegistry {\n    constructor() {\n        this._accessors = [];\n    }\n    /**\n     * @description\n     * Adds a control to the internal registry. For internal use only.\n     */\n    add(control, accessor) {\n        this._accessors.push([control, accessor]);\n    }\n    /**\n     * @description\n     * Removes a control from the internal registry. For internal use only.\n     */\n    remove(accessor) {\n        for (let i = this._accessors.length - 1; i >= 0; --i) {\n            if (this._accessors[i][1] === accessor) {\n                this._accessors.splice(i, 1);\n                return;\n            }\n        }\n    }\n    /**\n     * @description\n     * Selects a radio button. For internal use only.\n     */\n    select(accessor) {\n        this._accessors.forEach((c) => {\n            if (this._isSameGroup(c, accessor) && c[1] !== accessor) {\n                c[1].fireUncheck(accessor.value);\n            }\n        });\n    }\n    _isSameGroup(controlPair, accessor) {\n        if (!controlPair[0].control)\n            return false;\n        return controlPair[0]._parent === accessor._control._parent &&\n            controlPair[1].name === accessor.name;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlRegistry, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlRegistry, providedIn: RadioControlRegistryModule }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlRegistry, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: RadioControlRegistryModule }]\n        }] });\n/**\n * @description\n * The `ControlValueAccessor` for writing radio control values and listening to radio control\n * changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * @usageNotes\n *\n * ### Using radio buttons with reactive form directives\n *\n * The follow example shows how to use radio buttons in a reactive form. When using radio buttons in\n * a reactive form, radio buttons in the same group should have the same `formControlName`.\n * Providing a `name` attribute is optional.\n *\n * {@example forms/ts/reactiveRadioButtons/reactive_radio_button_example.ts region='Reactive'}\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass RadioControlValueAccessor extends BuiltInControlValueAccessor {\n    constructor(renderer, elementRef, _registry, _injector) {\n        super(renderer, elementRef);\n        this._registry = _registry;\n        this._injector = _injector;\n        this.setDisabledStateFired = false;\n        /**\n         * The registered callback function called when a change event occurs on the input element.\n         * Note: we declare `onChange` here (also used as host listener) as a function with no arguments\n         * to override the `onChange` function (which expects 1 argument) in the parent\n         * `BaseControlValueAccessor` class.\n         * @nodoc\n         */\n        this.onChange = () => { };\n        this.callSetDisabledState = inject(CALL_SET_DISABLED_STATE, { optional: true }) ?? setDisabledStateDefault;\n    }\n    /** @nodoc */\n    ngOnInit() {\n        this._control = this._injector.get(NgControl);\n        this._checkName();\n        this._registry.add(this._control, this);\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this._registry.remove(this);\n    }\n    /**\n     * Sets the \"checked\" property value on the radio input element.\n     * @nodoc\n     */\n    writeValue(value) {\n        this._state = value === this.value;\n        this.setProperty('checked', this._state);\n    }\n    /**\n     * Registers a function called when the control value changes.\n     * @nodoc\n     */\n    registerOnChange(fn) {\n        this._fn = fn;\n        this.onChange = () => {\n            fn(this.value);\n            this._registry.select(this);\n        };\n    }\n    /** @nodoc */\n    setDisabledState(isDisabled) {\n        /**\n         * `setDisabledState` is supposed to be called whenever the disabled state of a control changes,\n         * including upon control creation. However, a longstanding bug caused the method to not fire\n         * when an *enabled* control was attached. This bug was fixed in v15 in #47576.\n         *\n         * This had a side effect: previously, it was possible to instantiate a reactive form control\n         * with `[attr.disabled]=true`, even though the corresponding control was enabled in the\n         * model. This resulted in a mismatch between the model and the DOM. Now, because\n         * `setDisabledState` is always called, the value in the DOM will be immediately overwritten\n         * with the \"correct\" enabled value.\n         *\n         * However, the fix also created an exceptional case: radio buttons. Because Reactive Forms\n         * models the entire group of radio buttons as a single `FormControl`, there is no way to\n         * control the disabled state for individual radios, so they can no longer be configured as\n         * disabled. Thus, we keep the old behavior for radio buttons, so that `[attr.disabled]`\n         * continues to work. Specifically, we drop the first call to `setDisabledState` if `disabled`\n         * is `false`, and we are not in legacy mode.\n         */\n        if (this.setDisabledStateFired || isDisabled ||\n            this.callSetDisabledState === 'whenDisabledForLegacyCode') {\n            this.setProperty('disabled', isDisabled);\n        }\n        this.setDisabledStateFired = true;\n    }\n    /**\n     * Sets the \"value\" on the radio input element and unchecks it.\n     *\n     * @param value\n     */\n    fireUncheck(value) {\n        this.writeValue(value);\n    }\n    _checkName() {\n        if (this.name && this.formControlName && this.name !== this.formControlName &&\n            (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throwNameError();\n        }\n        if (!this.name && this.formControlName)\n            this.name = this.formControlName;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlValueAccessor, deps: [{ token: i0.Renderer2 }, { token: i0.ElementRef }, { token: RadioControlRegistry }, { token: i0.Injector }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: RadioControlValueAccessor, selector: \"input[type=radio][formControlName],input[type=radio][formControl],input[type=radio][ngModel]\", inputs: { name: \"name\", formControlName: \"formControlName\", value: \"value\" }, host: { listeners: { \"change\": \"onChange()\", \"blur\": \"onTouched()\" } }, providers: [RADIO_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RadioControlValueAccessor, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input[type=radio][formControlName],input[type=radio][formControl],input[type=radio][ngModel]',\n                    host: { '(change)': 'onChange()', '(blur)': 'onTouched()' },\n                    providers: [RADIO_VALUE_ACCESSOR]\n                }]\n        }], ctorParameters: function () { return [{ type: i0.Renderer2 }, { type: i0.ElementRef }, { type: RadioControlRegistry }, { type: i0.Injector }]; }, propDecorators: { name: [{\n                type: Input\n            }], formControlName: [{\n                type: Input\n            }], value: [{\n                type: Input\n            }] } });\n\nconst RANGE_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef(() => RangeValueAccessor),\n    multi: true\n};\n/**\n * @description\n * The `ControlValueAccessor` for writing a range value and listening to range input changes.\n * The value accessor is used by the `FormControlDirective`, `FormControlName`, and  `NgModel`\n * directives.\n *\n * @usageNotes\n *\n * ### Using a range input with a reactive form\n *\n * The following example shows how to use a range input with a reactive form.\n *\n * ```ts\n * const ageControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"range\" [formControl]=\"ageControl\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass RangeValueAccessor extends BuiltInControlValueAccessor {\n    /**\n     * Sets the \"value\" property on the input element.\n     * @nodoc\n     */\n    writeValue(value) {\n        this.setProperty('value', parseFloat(value));\n    }\n    /**\n     * Registers a function called when the control value changes.\n     * @nodoc\n     */\n    registerOnChange(fn) {\n        this.onChange = (value) => {\n            fn(value == '' ? null : parseFloat(value));\n        };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RangeValueAccessor, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: RangeValueAccessor, selector: \"input[type=range][formControlName],input[type=range][formControl],input[type=range][ngModel]\", host: { listeners: { \"change\": \"onChange($event.target.value)\", \"input\": \"onChange($event.target.value)\", \"blur\": \"onTouched()\" } }, providers: [RANGE_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RangeValueAccessor, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input[type=range][formControlName],input[type=range][formControl],input[type=range][ngModel]',\n                    host: {\n                        '(change)': 'onChange($event.target.value)',\n                        '(input)': 'onChange($event.target.value)',\n                        '(blur)': 'onTouched()'\n                    },\n                    providers: [RANGE_VALUE_ACCESSOR]\n                }]\n        }] });\n\n/**\n * Token to provide to turn off the ngModel warning on formControl and formControlName.\n */\nconst NG_MODEL_WITH_FORM_CONTROL_WARNING = new InjectionToken('NgModelWithFormControlWarning');\nconst formControlBinding = {\n    provide: NgControl,\n    useExisting: forwardRef(() => FormControlDirective)\n};\n/**\n * @description\n * Synchronizes a standalone `FormControl` instance to a form control element.\n *\n * Note that support for using the `ngModel` input property and `ngModelChange` event with reactive\n * form directives was deprecated in Angular v6 and is scheduled for removal in\n * a future version of Angular.\n * For details, see [Deprecated features](guide/deprecations#ngmodel-with-reactive-forms).\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see {@link FormControl}\n * @see {@link AbstractControl}\n *\n * @usageNotes\n *\n * The following example shows how to register a standalone control and set its value.\n *\n * {@example forms/ts/simpleFormControl/simple_form_control_example.ts region='Component'}\n *\n * @ngModule ReactiveFormsModule\n * @publicApi\n */\nclass FormControlDirective extends NgControl {\n    /**\n     * @description\n     * Triggers a warning in dev mode that this input should not be used with reactive forms.\n     */\n    set isDisabled(isDisabled) {\n        if (typeof ngDevMode === 'undefined' || ngDevMode) {\n            console.warn(disabledAttrWarning);\n        }\n    }\n    /**\n     * @description\n     * Static property used to track whether any ngModel warnings have been sent across\n     * all instances of FormControlDirective. Used to support warning config of \"once\".\n     *\n     * @internal\n     */\n    static { this._ngModelWarningSentOnce = false; }\n    constructor(validators, asyncValidators, valueAccessors, _ngModelWarningConfig, callSetDisabledState) {\n        super();\n        this._ngModelWarningConfig = _ngModelWarningConfig;\n        this.callSetDisabledState = callSetDisabledState;\n        /** @deprecated as of v6 */\n        this.update = new EventEmitter();\n        /**\n         * @description\n         * Instance property used to track whether an ngModel warning has been sent out for this\n         * particular `FormControlDirective` instance. Used to support warning config of \"always\".\n         *\n         * @internal\n         */\n        this._ngModelWarningSent = false;\n        this._setValidators(validators);\n        this._setAsyncValidators(asyncValidators);\n        this.valueAccessor = selectValueAccessor(this, valueAccessors);\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (this._isControlChanged(changes)) {\n            const previousForm = changes['form'].previousValue;\n            if (previousForm) {\n                cleanUpControl(previousForm, this, /* validateControlPresenceOnChange */ false);\n            }\n            setUpControl(this.form, this, this.callSetDisabledState);\n            this.form.updateValueAndValidity({ emitEvent: false });\n        }\n        if (isPropertyUpdated(changes, this.viewModel)) {\n            if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                _ngModelWarning('formControl', FormControlDirective, this, this._ngModelWarningConfig);\n            }\n            this.form.setValue(this.model);\n            this.viewModel = this.model;\n        }\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (this.form) {\n            cleanUpControl(this.form, this, /* validateControlPresenceOnChange */ false);\n        }\n    }\n    /**\n     * @description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     */\n    get path() {\n        return [];\n    }\n    /**\n     * @description\n     * The `FormControl` bound to this directive.\n     */\n    get control() {\n        return this.form;\n    }\n    /**\n     * @description\n     * Sets the new value for the view model and emits an `ngModelChange` event.\n     *\n     * @param newValue The new value for the view model.\n     */\n    viewToModelUpdate(newValue) {\n        this.viewModel = newValue;\n        this.update.emit(newValue);\n    }\n    _isControlChanged(changes) {\n        return changes.hasOwnProperty('form');\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormControlDirective, deps: [{ token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }, { token: NG_VALUE_ACCESSOR, optional: true, self: true }, { token: NG_MODEL_WITH_FORM_CONTROL_WARNING, optional: true }, { token: CALL_SET_DISABLED_STATE, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: FormControlDirective, selector: \"[formControl]\", inputs: { form: [\"formControl\", \"form\"], isDisabled: [\"disabled\", \"isDisabled\"], model: [\"ngModel\", \"model\"] }, outputs: { update: \"ngModelChange\" }, providers: [formControlBinding], exportAs: [\"ngForm\"], usesInheritance: true, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormControlDirective, decorators: [{\n            type: Directive,\n            args: [{ selector: '[formControl]', providers: [formControlBinding], exportAs: 'ngForm' }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALUE_ACCESSOR]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [NG_MODEL_WITH_FORM_CONTROL_WARNING]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [CALL_SET_DISABLED_STATE]\n                }] }]; }, propDecorators: { form: [{\n                type: Input,\n                args: ['formControl']\n            }], isDisabled: [{\n                type: Input,\n                args: ['disabled']\n            }], model: [{\n                type: Input,\n                args: ['ngModel']\n            }], update: [{\n                type: Output,\n                args: ['ngModelChange']\n            }] } });\n\nconst formDirectiveProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef(() => FormGroupDirective)\n};\n/**\n * @description\n *\n * Binds an existing `FormGroup` or `FormRecord` to a DOM element.\n *\n * This directive accepts an existing `FormGroup` instance. It will then use this\n * `FormGroup` instance to match any child `FormControl`, `FormGroup`/`FormRecord`,\n * and `FormArray` instances to child `FormControlName`, `FormGroupName`,\n * and `FormArrayName` directives.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see {@link AbstractControl}\n *\n * @usageNotes\n * ### Register Form Group\n *\n * The following example registers a `FormGroup` with first name and last name controls,\n * and listens for the *ngSubmit* event when the button is clicked.\n *\n * {@example forms/ts/simpleFormGroup/simple_form_group_example.ts region='Component'}\n *\n * @ngModule ReactiveFormsModule\n * @publicApi\n */\nclass FormGroupDirective extends ControlContainer {\n    constructor(validators, asyncValidators, callSetDisabledState) {\n        super();\n        this.callSetDisabledState = callSetDisabledState;\n        /**\n         * @description\n         * Reports whether the form submission has been triggered.\n         */\n        this.submitted = false;\n        /**\n         * Callback that should be invoked when controls in FormGroup or FormArray collection change\n         * (added or removed). This callback triggers corresponding DOM updates.\n         */\n        this._onCollectionChange = () => this._updateDomValue();\n        /**\n         * @description\n         * Tracks the list of added `FormControlName` instances\n         */\n        this.directives = [];\n        /**\n         * @description\n         * Tracks the `FormGroup` bound to this directive.\n         */\n        this.form = null;\n        /**\n         * @description\n         * Emits an event when the form submission has been triggered.\n         */\n        this.ngSubmit = new EventEmitter();\n        this._setValidators(validators);\n        this._setAsyncValidators(asyncValidators);\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        this._checkFormPresent();\n        if (changes.hasOwnProperty('form')) {\n            this._updateValidators();\n            this._updateDomValue();\n            this._updateRegistrations();\n            this._oldForm = this.form;\n        }\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (this.form) {\n            cleanUpValidators(this.form, this);\n            // Currently the `onCollectionChange` callback is rewritten each time the\n            // `_registerOnCollectionChange` function is invoked. The implication is that cleanup should\n            // happen *only* when the `onCollectionChange` callback was set by this directive instance.\n            // Otherwise it might cause overriding a callback of some other directive instances. We should\n            // consider updating this logic later to make it similar to how `onChange` callbacks are\n            // handled, see https://github.com/angular/angular/issues/39732 for additional info.\n            if (this.form._onCollectionChange === this._onCollectionChange) {\n                this.form._registerOnCollectionChange(() => { });\n            }\n        }\n    }\n    /**\n     * @description\n     * Returns this directive's instance.\n     */\n    get formDirective() {\n        return this;\n    }\n    /**\n     * @description\n     * Returns the `FormGroup` bound to this directive.\n     */\n    get control() {\n        return this.form;\n    }\n    /**\n     * @description\n     * Returns an array representing the path to this group. Because this directive\n     * always lives at the top level of a form, it always an empty array.\n     */\n    get path() {\n        return [];\n    }\n    /**\n     * @description\n     * Method that sets up the control directive in this group, re-calculates its value\n     * and validity, and adds the instance to the internal list of directives.\n     *\n     * @param dir The `FormControlName` directive instance.\n     */\n    addControl(dir) {\n        const ctrl = this.form.get(dir.path);\n        setUpControl(ctrl, dir, this.callSetDisabledState);\n        ctrl.updateValueAndValidity({ emitEvent: false });\n        this.directives.push(dir);\n        return ctrl;\n    }\n    /**\n     * @description\n     * Retrieves the `FormControl` instance from the provided `FormControlName` directive\n     *\n     * @param dir The `FormControlName` directive instance.\n     */\n    getControl(dir) {\n        return this.form.get(dir.path);\n    }\n    /**\n     * @description\n     * Removes the `FormControlName` instance from the internal list of directives\n     *\n     * @param dir The `FormControlName` directive instance.\n     */\n    removeControl(dir) {\n        cleanUpControl(dir.control || null, dir, /* validateControlPresenceOnChange */ false);\n        removeListItem$1(this.directives, dir);\n    }\n    /**\n     * Adds a new `FormGroupName` directive instance to the form.\n     *\n     * @param dir The `FormGroupName` directive instance.\n     */\n    addFormGroup(dir) {\n        this._setUpFormContainer(dir);\n    }\n    /**\n     * Performs the necessary cleanup when a `FormGroupName` directive instance is removed from the\n     * view.\n     *\n     * @param dir The `FormGroupName` directive instance.\n     */\n    removeFormGroup(dir) {\n        this._cleanUpFormContainer(dir);\n    }\n    /**\n     * @description\n     * Retrieves the `FormGroup` for a provided `FormGroupName` directive instance\n     *\n     * @param dir The `FormGroupName` directive instance.\n     */\n    getFormGroup(dir) {\n        return this.form.get(dir.path);\n    }\n    /**\n     * Performs the necessary setup when a `FormArrayName` directive instance is added to the view.\n     *\n     * @param dir The `FormArrayName` directive instance.\n     */\n    addFormArray(dir) {\n        this._setUpFormContainer(dir);\n    }\n    /**\n     * Performs the necessary cleanup when a `FormArrayName` directive instance is removed from the\n     * view.\n     *\n     * @param dir The `FormArrayName` directive instance.\n     */\n    removeFormArray(dir) {\n        this._cleanUpFormContainer(dir);\n    }\n    /**\n     * @description\n     * Retrieves the `FormArray` for a provided `FormArrayName` directive instance.\n     *\n     * @param dir The `FormArrayName` directive instance.\n     */\n    getFormArray(dir) {\n        return this.form.get(dir.path);\n    }\n    /**\n     * Sets the new value for the provided `FormControlName` directive.\n     *\n     * @param dir The `FormControlName` directive instance.\n     * @param value The new value for the directive's control.\n     */\n    updateModel(dir, value) {\n        const ctrl = this.form.get(dir.path);\n        ctrl.setValue(value);\n    }\n    /**\n     * @description\n     * Method called with the \"submit\" event is triggered on the form.\n     * Triggers the `ngSubmit` emitter to emit the \"submit\" event as its payload.\n     *\n     * @param $event The \"submit\" event object\n     */\n    onSubmit($event) {\n        this.submitted = true;\n        syncPendingControls(this.form, this.directives);\n        this.ngSubmit.emit($event);\n        // Forms with `method=\"dialog\"` have some special behavior that won't reload the page and that\n        // shouldn't be prevented. Note that we need to null check the `event` and the `target`, because\n        // some internal apps call this method directly with the wrong arguments.\n        return $event?.target?.method === 'dialog';\n    }\n    /**\n     * @description\n     * Method called when the \"reset\" event is triggered on the form.\n     */\n    onReset() {\n        this.resetForm();\n    }\n    /**\n     * @description\n     * Resets the form to an initial value and resets its submitted status.\n     *\n     * @param value The new value for the form.\n     */\n    resetForm(value = undefined) {\n        this.form.reset(value);\n        this.submitted = false;\n    }\n    /** @internal */\n    _updateDomValue() {\n        this.directives.forEach(dir => {\n            const oldCtrl = dir.control;\n            const newCtrl = this.form.get(dir.path);\n            if (oldCtrl !== newCtrl) {\n                // Note: the value of the `dir.control` may not be defined, for example when it's a first\n                // `FormControl` that is added to a `FormGroup` instance (via `addControl` call).\n                cleanUpControl(oldCtrl || null, dir);\n                // Check whether new control at the same location inside the corresponding `FormGroup` is an\n                // instance of `FormControl` and perform control setup only if that's the case.\n                // Note: we don't need to clear the list of directives (`this.directives`) here, it would be\n                // taken care of in the `removeControl` method invoked when corresponding `formControlName`\n                // directive instance is being removed (invoked from `FormControlName.ngOnDestroy`).\n                if (isFormControl(newCtrl)) {\n                    setUpControl(newCtrl, dir, this.callSetDisabledState);\n                    dir.control = newCtrl;\n                }\n            }\n        });\n        this.form._updateTreeValidity({ emitEvent: false });\n    }\n    _setUpFormContainer(dir) {\n        const ctrl = this.form.get(dir.path);\n        setUpFormContainer(ctrl, dir);\n        // NOTE: this operation looks unnecessary in case no new validators were added in\n        // `setUpFormContainer` call. Consider updating this code to match the logic in\n        // `_cleanUpFormContainer` function.\n        ctrl.updateValueAndValidity({ emitEvent: false });\n    }\n    _cleanUpFormContainer(dir) {\n        if (this.form) {\n            const ctrl = this.form.get(dir.path);\n            if (ctrl) {\n                const isControlUpdated = cleanUpFormContainer(ctrl, dir);\n                if (isControlUpdated) {\n                    // Run validity check only in case a control was updated (i.e. view validators were\n                    // removed) as removing view validators might cause validity to change.\n                    ctrl.updateValueAndValidity({ emitEvent: false });\n                }\n            }\n        }\n    }\n    _updateRegistrations() {\n        this.form._registerOnCollectionChange(this._onCollectionChange);\n        if (this._oldForm) {\n            this._oldForm._registerOnCollectionChange(() => { });\n        }\n    }\n    _updateValidators() {\n        setUpValidators(this.form, this);\n        if (this._oldForm) {\n            cleanUpValidators(this._oldForm, this);\n        }\n    }\n    _checkFormPresent() {\n        if (!this.form && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throw missingFormException();\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormGroupDirective, deps: [{ token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }, { token: CALL_SET_DISABLED_STATE, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: FormGroupDirective, selector: \"[formGroup]\", inputs: { form: [\"formGroup\", \"form\"] }, outputs: { ngSubmit: \"ngSubmit\" }, host: { listeners: { \"submit\": \"onSubmit($event)\", \"reset\": \"onReset()\" } }, providers: [formDirectiveProvider], exportAs: [\"ngForm\"], usesInheritance: true, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormGroupDirective, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[formGroup]',\n                    providers: [formDirectiveProvider],\n                    host: { '(submit)': 'onSubmit($event)', '(reset)': 'onReset()' },\n                    exportAs: 'ngForm'\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [CALL_SET_DISABLED_STATE]\n                }] }]; }, propDecorators: { form: [{\n                type: Input,\n                args: ['formGroup']\n            }], ngSubmit: [{\n                type: Output\n            }] } });\n\nconst formGroupNameProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef(() => FormGroupName)\n};\n/**\n * @description\n *\n * Syncs a nested `FormGroup` or `FormRecord` to a DOM element.\n *\n * This directive can only be used with a parent `FormGroupDirective`.\n *\n * It accepts the string name of the nested `FormGroup` or `FormRecord` to link, and\n * looks for a `FormGroup` or `FormRecord` registered with that name in the parent\n * `FormGroup` instance you passed into `FormGroupDirective`.\n *\n * Use nested form groups to validate a sub-group of a\n * form separately from the rest or to group the values of certain\n * controls into their own nested object.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n *\n * @usageNotes\n *\n * ### Access the group by name\n *\n * The following example uses the `AbstractControl.get` method to access the\n * associated `FormGroup`\n *\n * ```ts\n *   this.form.get('name');\n * ```\n *\n * ### Access individual controls in the group\n *\n * The following example uses the `AbstractControl.get` method to access\n * individual controls within the group using dot syntax.\n *\n * ```ts\n *   this.form.get('name.first');\n * ```\n *\n * ### Register a nested `FormGroup`.\n *\n * The following example registers a nested *name* `FormGroup` within an existing `FormGroup`,\n * and provides methods to retrieve the nested `FormGroup` and individual controls.\n *\n * {@example forms/ts/nestedFormGroup/nested_form_group_example.ts region='Component'}\n *\n * @ngModule ReactiveFormsModule\n * @publicApi\n */\nclass FormGroupName extends AbstractFormGroupDirective {\n    constructor(parent, validators, asyncValidators) {\n        super();\n        /**\n         * @description\n         * Tracks the name of the `FormGroup` bound to the directive. The name corresponds\n         * to a key in the parent `FormGroup` or `FormArray`.\n         * Accepts a name as a string or a number.\n         * The name in the form of a string is useful for individual forms,\n         * while the numerical form allows for form groups to be bound\n         * to indices when iterating over groups in a `FormArray`.\n         */\n        this.name = null;\n        this._parent = parent;\n        this._setValidators(validators);\n        this._setAsyncValidators(asyncValidators);\n    }\n    /** @internal */\n    _checkParentType() {\n        if (_hasInvalidParent(this._parent) && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throw groupParentException();\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormGroupName, deps: [{ token: ControlContainer, host: true, optional: true, skipSelf: true }, { token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: FormGroupName, selector: \"[formGroupName]\", inputs: { name: [\"formGroupName\", \"name\"] }, providers: [formGroupNameProvider], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormGroupName, decorators: [{\n            type: Directive,\n            args: [{ selector: '[formGroupName]', providers: [formGroupNameProvider] }]\n        }], ctorParameters: function () { return [{ type: ControlContainer, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }, {\n                    type: SkipSelf\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }]; }, propDecorators: { name: [{\n                type: Input,\n                args: ['formGroupName']\n            }] } });\nconst formArrayNameProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef(() => FormArrayName)\n};\n/**\n * @description\n *\n * Syncs a nested `FormArray` to a DOM element.\n *\n * This directive is designed to be used with a parent `FormGroupDirective` (selector:\n * `[formGroup]`).\n *\n * It accepts the string name of the nested `FormArray` you want to link, and\n * will look for a `FormArray` registered with that name in the parent\n * `FormGroup` instance you passed into `FormGroupDirective`.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see {@link AbstractControl}\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example forms/ts/nestedFormArray/nested_form_array_example.ts region='Component'}\n *\n * @ngModule ReactiveFormsModule\n * @publicApi\n */\nclass FormArrayName extends ControlContainer {\n    constructor(parent, validators, asyncValidators) {\n        super();\n        /**\n         * @description\n         * Tracks the name of the `FormArray` bound to the directive. The name corresponds\n         * to a key in the parent `FormGroup` or `FormArray`.\n         * Accepts a name as a string or a number.\n         * The name in the form of a string is useful for individual forms,\n         * while the numerical form allows for form arrays to be bound\n         * to indices when iterating over arrays in a `FormArray`.\n         */\n        this.name = null;\n        this._parent = parent;\n        this._setValidators(validators);\n        this._setAsyncValidators(asyncValidators);\n    }\n    /**\n     * A lifecycle method called when the directive's inputs are initialized. For internal use only.\n     * @throws If the directive does not have a valid parent.\n     * @nodoc\n     */\n    ngOnInit() {\n        this._checkParentType();\n        this.formDirective.addFormArray(this);\n    }\n    /**\n     * A lifecycle method called before the directive's instance is destroyed. For internal use only.\n     * @nodoc\n     */\n    ngOnDestroy() {\n        if (this.formDirective) {\n            this.formDirective.removeFormArray(this);\n        }\n    }\n    /**\n     * @description\n     * The `FormArray` bound to this directive.\n     */\n    get control() {\n        return this.formDirective.getFormArray(this);\n    }\n    /**\n     * @description\n     * The top-level directive for this group if present, otherwise null.\n     */\n    get formDirective() {\n        return this._parent ? this._parent.formDirective : null;\n    }\n    /**\n     * @description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     */\n    get path() {\n        return controlPath(this.name == null ? this.name : this.name.toString(), this._parent);\n    }\n    _checkParentType() {\n        if (_hasInvalidParent(this._parent) && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throw arrayParentException();\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormArrayName, deps: [{ token: ControlContainer, host: true, optional: true, skipSelf: true }, { token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: FormArrayName, selector: \"[formArrayName]\", inputs: { name: [\"formArrayName\", \"name\"] }, providers: [formArrayNameProvider], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormArrayName, decorators: [{\n            type: Directive,\n            args: [{ selector: '[formArrayName]', providers: [formArrayNameProvider] }]\n        }], ctorParameters: function () { return [{ type: ControlContainer, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }, {\n                    type: SkipSelf\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }]; }, propDecorators: { name: [{\n                type: Input,\n                args: ['formArrayName']\n            }] } });\nfunction _hasInvalidParent(parent) {\n    return !(parent instanceof FormGroupName) && !(parent instanceof FormGroupDirective) &&\n        !(parent instanceof FormArrayName);\n}\n\nconst controlNameBinding = {\n    provide: NgControl,\n    useExisting: forwardRef(() => FormControlName)\n};\n/**\n * @description\n * Syncs a `FormControl` in an existing `FormGroup` to a form control\n * element by name.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see {@link FormControl}\n * @see {@link AbstractControl}\n *\n * @usageNotes\n *\n * ### Register `FormControl` within a group\n *\n * The following example shows how to register multiple form controls within a form group\n * and set their value.\n *\n * {@example forms/ts/simpleFormGroup/simple_form_group_example.ts region='Component'}\n *\n * To see `formControlName` examples with different form control types, see:\n *\n * * Radio buttons: `RadioControlValueAccessor`\n * * Selects: `SelectControlValueAccessor`\n *\n * ### Use with ngModel is deprecated\n *\n * Support for using the `ngModel` input property and `ngModelChange` event with reactive\n * form directives has been deprecated in Angular v6 and is scheduled for removal in\n * a future version of Angular.\n *\n * For details, see [Deprecated features](guide/deprecations#ngmodel-with-reactive-forms).\n *\n * @ngModule ReactiveFormsModule\n * @publicApi\n */\nclass FormControlName extends NgControl {\n    /**\n     * @description\n     * Triggers a warning in dev mode that this input should not be used with reactive forms.\n     */\n    set isDisabled(isDisabled) {\n        if (typeof ngDevMode === 'undefined' || ngDevMode) {\n            console.warn(disabledAttrWarning);\n        }\n    }\n    /**\n     * @description\n     * Static property used to track whether any ngModel warnings have been sent across\n     * all instances of FormControlName. Used to support warning config of \"once\".\n     *\n     * @internal\n     */\n    static { this._ngModelWarningSentOnce = false; }\n    constructor(parent, validators, asyncValidators, valueAccessors, _ngModelWarningConfig) {\n        super();\n        this._ngModelWarningConfig = _ngModelWarningConfig;\n        this._added = false;\n        /**\n         * @description\n         * Tracks the name of the `FormControl` bound to the directive. The name corresponds\n         * to a key in the parent `FormGroup` or `FormArray`.\n         * Accepts a name as a string or a number.\n         * The name in the form of a string is useful for individual forms,\n         * while the numerical form allows for form controls to be bound\n         * to indices when iterating over controls in a `FormArray`.\n         */\n        this.name = null;\n        /** @deprecated as of v6 */\n        this.update = new EventEmitter();\n        /**\n         * @description\n         * Instance property used to track whether an ngModel warning has been sent out for this\n         * particular FormControlName instance. Used to support warning config of \"always\".\n         *\n         * @internal\n         */\n        this._ngModelWarningSent = false;\n        this._parent = parent;\n        this._setValidators(validators);\n        this._setAsyncValidators(asyncValidators);\n        this.valueAccessor = selectValueAccessor(this, valueAccessors);\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (!this._added)\n            this._setUpControl();\n        if (isPropertyUpdated(changes, this.viewModel)) {\n            if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                _ngModelWarning('formControlName', FormControlName, this, this._ngModelWarningConfig);\n            }\n            this.viewModel = this.model;\n            this.formDirective.updateModel(this, this.model);\n        }\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (this.formDirective) {\n            this.formDirective.removeControl(this);\n        }\n    }\n    /**\n     * @description\n     * Sets the new value for the view model and emits an `ngModelChange` event.\n     *\n     * @param newValue The new value for the view model.\n     */\n    viewToModelUpdate(newValue) {\n        this.viewModel = newValue;\n        this.update.emit(newValue);\n    }\n    /**\n     * @description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     */\n    get path() {\n        return controlPath(this.name == null ? this.name : this.name.toString(), this._parent);\n    }\n    /**\n     * @description\n     * The top-level directive for this group if present, otherwise null.\n     */\n    get formDirective() {\n        return this._parent ? this._parent.formDirective : null;\n    }\n    _checkParentType() {\n        if (typeof ngDevMode === 'undefined' || ngDevMode) {\n            if (!(this._parent instanceof FormGroupName) &&\n                this._parent instanceof AbstractFormGroupDirective) {\n                throw ngModelGroupException();\n            }\n            else if (!(this._parent instanceof FormGroupName) &&\n                !(this._parent instanceof FormGroupDirective) &&\n                !(this._parent instanceof FormArrayName)) {\n                throw controlParentException();\n            }\n        }\n    }\n    _setUpControl() {\n        this._checkParentType();\n        this.control = this.formDirective.addControl(this);\n        this._added = true;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormControlName, deps: [{ token: ControlContainer, host: true, optional: true, skipSelf: true }, { token: NG_VALIDATORS, optional: true, self: true }, { token: NG_ASYNC_VALIDATORS, optional: true, self: true }, { token: NG_VALUE_ACCESSOR, optional: true, self: true }, { token: NG_MODEL_WITH_FORM_CONTROL_WARNING, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: FormControlName, selector: \"[formControlName]\", inputs: { name: [\"formControlName\", \"name\"], isDisabled: [\"disabled\", \"isDisabled\"], model: [\"ngModel\", \"model\"] }, outputs: { update: \"ngModelChange\" }, providers: [controlNameBinding], usesInheritance: true, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormControlName, decorators: [{\n            type: Directive,\n            args: [{ selector: '[formControlName]', providers: [controlNameBinding] }]\n        }], ctorParameters: function () { return [{ type: ControlContainer, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }, {\n                    type: SkipSelf\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_ASYNC_VALIDATORS]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Self\n                }, {\n                    type: Inject,\n                    args: [NG_VALUE_ACCESSOR]\n                }] }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [NG_MODEL_WITH_FORM_CONTROL_WARNING]\n                }] }]; }, propDecorators: { name: [{\n                type: Input,\n                args: ['formControlName']\n            }], isDisabled: [{\n                type: Input,\n                args: ['disabled']\n            }], model: [{\n                type: Input,\n                args: ['ngModel']\n            }], update: [{\n                type: Output,\n                args: ['ngModelChange']\n            }] } });\n\nconst SELECT_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef(() => SelectControlValueAccessor),\n    multi: true\n};\nfunction _buildValueString$1(id, value) {\n    if (id == null)\n        return `${value}`;\n    if (value && typeof value === 'object')\n        value = 'Object';\n    return `${id}: ${value}`.slice(0, 50);\n}\nfunction _extractId$1(valueString) {\n    return valueString.split(':')[0];\n}\n/**\n * @description\n * The `ControlValueAccessor` for writing select control values and listening to select control\n * changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * @usageNotes\n *\n * ### Using select controls in a reactive form\n *\n * The following examples show how to use a select control in a reactive form.\n *\n * {@example forms/ts/reactiveSelectControl/reactive_select_control_example.ts region='Component'}\n *\n * ### Using select controls in a template-driven form\n *\n * To use a select in a template-driven form, simply add an `ngModel` and a `name`\n * attribute to the main `<select>` tag.\n *\n * {@example forms/ts/selectControl/select_control_example.ts region='Component'}\n *\n * ### Customizing option selection\n *\n * Angular uses object identity to select option. It's possible for the identities of items\n * to change while the data does not. This can happen, for example, if the items are produced\n * from an RPC to the server, and that RPC is re-run. Even if the data hasn't changed, the\n * second response will produce objects with different identities.\n *\n * To customize the default option comparison algorithm, `<select>` supports `compareWith` input.\n * `compareWith` takes a **function** which has two arguments: `option1` and `option2`.\n * If `compareWith` is given, Angular selects option by the return value of the function.\n *\n * ```ts\n * const selectedCountriesControl = new FormControl();\n * ```\n *\n * ```\n * <select [compareWith]=\"compareFn\"  [formControl]=\"selectedCountriesControl\">\n *     <option *ngFor=\"let country of countries\" [ngValue]=\"country\">\n *         {{country.name}}\n *     </option>\n * </select>\n *\n * compareFn(c1: Country, c2: Country): boolean {\n *     return c1 && c2 ? c1.id === c2.id : c1 === c2;\n * }\n * ```\n *\n * **Note:** We listen to the 'change' event because 'input' events aren't fired\n * for selects in IE, see:\n * https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/input_event#browser_compatibility\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass SelectControlValueAccessor extends BuiltInControlValueAccessor {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this._optionMap = new Map();\n        /** @internal */\n        this._idCounter = 0;\n        this._compareWith = Object.is;\n    }\n    /**\n     * @description\n     * Tracks the option comparison algorithm for tracking identities when\n     * checking for changes.\n     */\n    set compareWith(fn) {\n        if (typeof fn !== 'function' && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throw new ɵRuntimeError(1201 /* RuntimeErrorCode.COMPAREWITH_NOT_A_FN */, `compareWith must be a function, but received ${JSON.stringify(fn)}`);\n        }\n        this._compareWith = fn;\n    }\n    /**\n     * Sets the \"value\" property on the select element.\n     * @nodoc\n     */\n    writeValue(value) {\n        this.value = value;\n        const id = this._getOptionId(value);\n        const valueString = _buildValueString$1(id, value);\n        this.setProperty('value', valueString);\n    }\n    /**\n     * Registers a function called when the control value changes.\n     * @nodoc\n     */\n    registerOnChange(fn) {\n        this.onChange = (valueString) => {\n            this.value = this._getOptionValue(valueString);\n            fn(this.value);\n        };\n    }\n    /** @internal */\n    _registerOption() {\n        return (this._idCounter++).toString();\n    }\n    /** @internal */\n    _getOptionId(value) {\n        for (const id of this._optionMap.keys()) {\n            if (this._compareWith(this._optionMap.get(id), value))\n                return id;\n        }\n        return null;\n    }\n    /** @internal */\n    _getOptionValue(valueString) {\n        const id = _extractId$1(valueString);\n        return this._optionMap.has(id) ? this._optionMap.get(id) : valueString;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SelectControlValueAccessor, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: SelectControlValueAccessor, selector: \"select:not([multiple])[formControlName],select:not([multiple])[formControl],select:not([multiple])[ngModel]\", inputs: { compareWith: \"compareWith\" }, host: { listeners: { \"change\": \"onChange($event.target.value)\", \"blur\": \"onTouched()\" } }, providers: [SELECT_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SelectControlValueAccessor, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'select:not([multiple])[formControlName],select:not([multiple])[formControl],select:not([multiple])[ngModel]',\n                    host: { '(change)': 'onChange($event.target.value)', '(blur)': 'onTouched()' },\n                    providers: [SELECT_VALUE_ACCESSOR]\n                }]\n        }], propDecorators: { compareWith: [{\n                type: Input\n            }] } });\n/**\n * @description\n * Marks `<option>` as dynamic, so Angular can be notified when options change.\n *\n * @see {@link SelectControlValueAccessor}\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass NgSelectOption {\n    constructor(_element, _renderer, _select) {\n        this._element = _element;\n        this._renderer = _renderer;\n        this._select = _select;\n        if (this._select)\n            this.id = this._select._registerOption();\n    }\n    /**\n     * @description\n     * Tracks the value bound to the option element. Unlike the value binding,\n     * ngValue supports binding to objects.\n     */\n    set ngValue(value) {\n        if (this._select == null)\n            return;\n        this._select._optionMap.set(this.id, value);\n        this._setElementValue(_buildValueString$1(this.id, value));\n        this._select.writeValue(this._select.value);\n    }\n    /**\n     * @description\n     * Tracks simple string values bound to the option element.\n     * For objects, use the `ngValue` input binding.\n     */\n    set value(value) {\n        this._setElementValue(value);\n        if (this._select)\n            this._select.writeValue(this._select.value);\n    }\n    /** @internal */\n    _setElementValue(value) {\n        this._renderer.setProperty(this._element.nativeElement, 'value', value);\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (this._select) {\n            this._select._optionMap.delete(this.id);\n            this._select.writeValue(this._select.value);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSelectOption, deps: [{ token: i0.ElementRef }, { token: i0.Renderer2 }, { token: SelectControlValueAccessor, host: true, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgSelectOption, selector: \"option\", inputs: { ngValue: \"ngValue\", value: \"value\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSelectOption, decorators: [{\n            type: Directive,\n            args: [{ selector: 'option' }]\n        }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.Renderer2 }, { type: SelectControlValueAccessor, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }] }]; }, propDecorators: { ngValue: [{\n                type: Input,\n                args: ['ngValue']\n            }], value: [{\n                type: Input,\n                args: ['value']\n            }] } });\n\nconst SELECT_MULTIPLE_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef(() => SelectMultipleControlValueAccessor),\n    multi: true\n};\nfunction _buildValueString(id, value) {\n    if (id == null)\n        return `${value}`;\n    if (typeof value === 'string')\n        value = `'${value}'`;\n    if (value && typeof value === 'object')\n        value = 'Object';\n    return `${id}: ${value}`.slice(0, 50);\n}\nfunction _extractId(valueString) {\n    return valueString.split(':')[0];\n}\n/** Mock interface for HTMLCollection */\nclass HTMLCollection {\n}\n/**\n * @description\n * The `ControlValueAccessor` for writing multi-select control values and listening to multi-select\n * control changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * @see {@link SelectControlValueAccessor}\n *\n * @usageNotes\n *\n * ### Using a multi-select control\n *\n * The follow example shows you how to use a multi-select control with a reactive form.\n *\n * ```ts\n * const countryControl = new FormControl();\n * ```\n *\n * ```\n * <select multiple name=\"countries\" [formControl]=\"countryControl\">\n *   <option *ngFor=\"let country of countries\" [ngValue]=\"country\">\n *     {{ country.name }}\n *   </option>\n * </select>\n * ```\n *\n * ### Customizing option selection\n *\n * To customize the default option comparison algorithm, `<select>` supports `compareWith` input.\n * See the `SelectControlValueAccessor` for usage.\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass SelectMultipleControlValueAccessor extends BuiltInControlValueAccessor {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this._optionMap = new Map();\n        /** @internal */\n        this._idCounter = 0;\n        this._compareWith = Object.is;\n    }\n    /**\n     * @description\n     * Tracks the option comparison algorithm for tracking identities when\n     * checking for changes.\n     */\n    set compareWith(fn) {\n        if (typeof fn !== 'function' && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n            throw new ɵRuntimeError(1201 /* RuntimeErrorCode.COMPAREWITH_NOT_A_FN */, `compareWith must be a function, but received ${JSON.stringify(fn)}`);\n        }\n        this._compareWith = fn;\n    }\n    /**\n     * Sets the \"value\" property on one or of more of the select's options.\n     * @nodoc\n     */\n    writeValue(value) {\n        this.value = value;\n        let optionSelectedStateSetter;\n        if (Array.isArray(value)) {\n            // convert values to ids\n            const ids = value.map((v) => this._getOptionId(v));\n            optionSelectedStateSetter = (opt, o) => {\n                opt._setSelected(ids.indexOf(o.toString()) > -1);\n            };\n        }\n        else {\n            optionSelectedStateSetter = (opt, o) => {\n                opt._setSelected(false);\n            };\n        }\n        this._optionMap.forEach(optionSelectedStateSetter);\n    }\n    /**\n     * Registers a function called when the control value changes\n     * and writes an array of the selected options.\n     * @nodoc\n     */\n    registerOnChange(fn) {\n        this.onChange = (element) => {\n            const selected = [];\n            const selectedOptions = element.selectedOptions;\n            if (selectedOptions !== undefined) {\n                const options = selectedOptions;\n                for (let i = 0; i < options.length; i++) {\n                    const opt = options[i];\n                    const val = this._getOptionValue(opt.value);\n                    selected.push(val);\n                }\n            }\n            // Degrade to use `options` when `selectedOptions` property is not available.\n            // Note: the `selectedOptions` is available in all supported browsers, but the Domino lib\n            // doesn't have it currently, see https://github.com/fgnass/domino/issues/177.\n            else {\n                const options = element.options;\n                for (let i = 0; i < options.length; i++) {\n                    const opt = options[i];\n                    if (opt.selected) {\n                        const val = this._getOptionValue(opt.value);\n                        selected.push(val);\n                    }\n                }\n            }\n            this.value = selected;\n            fn(selected);\n        };\n    }\n    /** @internal */\n    _registerOption(value) {\n        const id = (this._idCounter++).toString();\n        this._optionMap.set(id, value);\n        return id;\n    }\n    /** @internal */\n    _getOptionId(value) {\n        for (const id of this._optionMap.keys()) {\n            if (this._compareWith(this._optionMap.get(id)._value, value))\n                return id;\n        }\n        return null;\n    }\n    /** @internal */\n    _getOptionValue(valueString) {\n        const id = _extractId(valueString);\n        return this._optionMap.has(id) ? this._optionMap.get(id)._value : valueString;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SelectMultipleControlValueAccessor, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: SelectMultipleControlValueAccessor, selector: \"select[multiple][formControlName],select[multiple][formControl],select[multiple][ngModel]\", inputs: { compareWith: \"compareWith\" }, host: { listeners: { \"change\": \"onChange($event.target)\", \"blur\": \"onTouched()\" } }, providers: [SELECT_MULTIPLE_VALUE_ACCESSOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SelectMultipleControlValueAccessor, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'select[multiple][formControlName],select[multiple][formControl],select[multiple][ngModel]',\n                    host: { '(change)': 'onChange($event.target)', '(blur)': 'onTouched()' },\n                    providers: [SELECT_MULTIPLE_VALUE_ACCESSOR]\n                }]\n        }], propDecorators: { compareWith: [{\n                type: Input\n            }] } });\n/**\n * @description\n * Marks `<option>` as dynamic, so Angular can be notified when options change.\n *\n * @see {@link SelectMultipleControlValueAccessor}\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass ɵNgSelectMultipleOption {\n    constructor(_element, _renderer, _select) {\n        this._element = _element;\n        this._renderer = _renderer;\n        this._select = _select;\n        if (this._select) {\n            this.id = this._select._registerOption(this);\n        }\n    }\n    /**\n     * @description\n     * Tracks the value bound to the option element. Unlike the value binding,\n     * ngValue supports binding to objects.\n     */\n    set ngValue(value) {\n        if (this._select == null)\n            return;\n        this._value = value;\n        this._setElementValue(_buildValueString(this.id, value));\n        this._select.writeValue(this._select.value);\n    }\n    /**\n     * @description\n     * Tracks simple string values bound to the option element.\n     * For objects, use the `ngValue` input binding.\n     */\n    set value(value) {\n        if (this._select) {\n            this._value = value;\n            this._setElementValue(_buildValueString(this.id, value));\n            this._select.writeValue(this._select.value);\n        }\n        else {\n            this._setElementValue(value);\n        }\n    }\n    /** @internal */\n    _setElementValue(value) {\n        this._renderer.setProperty(this._element.nativeElement, 'value', value);\n    }\n    /** @internal */\n    _setSelected(selected) {\n        this._renderer.setProperty(this._element.nativeElement, 'selected', selected);\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (this._select) {\n            this._select._optionMap.delete(this.id);\n            this._select.writeValue(this._select.value);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵNgSelectMultipleOption, deps: [{ token: i0.ElementRef }, { token: i0.Renderer2 }, { token: SelectMultipleControlValueAccessor, host: true, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: ɵNgSelectMultipleOption, selector: \"option\", inputs: { ngValue: \"ngValue\", value: \"value\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵNgSelectMultipleOption, decorators: [{\n            type: Directive,\n            args: [{ selector: 'option' }]\n        }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.Renderer2 }, { type: SelectMultipleControlValueAccessor, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }] }]; }, propDecorators: { ngValue: [{\n                type: Input,\n                args: ['ngValue']\n            }], value: [{\n                type: Input,\n                args: ['value']\n            }] } });\n\n/**\n * Method that updates string to integer if not already a number\n *\n * @param value The value to convert to integer.\n * @returns value of parameter converted to number or integer.\n */\nfunction toInteger(value) {\n    return typeof value === 'number' ? value : parseInt(value, 10);\n}\n/**\n * Method that ensures that provided value is a float (and converts it to float if needed).\n *\n * @param value The value to convert to float.\n * @returns value of parameter converted to number or float.\n */\nfunction toFloat(value) {\n    return typeof value === 'number' ? value : parseFloat(value);\n}\n/**\n * A base class for Validator-based Directives. The class contains common logic shared across such\n * Directives.\n *\n * For internal use only, this class is not intended for use outside of the Forms package.\n */\nclass AbstractValidatorDirective {\n    constructor() {\n        this._validator = nullValidator;\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (this.inputName in changes) {\n            const input = this.normalizeInput(changes[this.inputName].currentValue);\n            this._enabled = this.enabled(input);\n            this._validator = this._enabled ? this.createValidator(input) : nullValidator;\n            if (this._onChange) {\n                this._onChange();\n            }\n        }\n    }\n    /** @nodoc */\n    validate(control) {\n        return this._validator(control);\n    }\n    /** @nodoc */\n    registerOnValidatorChange(fn) {\n        this._onChange = fn;\n    }\n    /**\n     * @description\n     * Determines whether this validator should be active or not based on an input.\n     * Base class implementation checks whether an input is defined (if the value is different from\n     * `null` and `undefined`). Validator classes that extend this base class can override this\n     * function with the logic specific to a particular validator directive.\n     */\n    enabled(input) {\n        return input != null /* both `null` and `undefined` */;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: AbstractValidatorDirective, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: AbstractValidatorDirective, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: AbstractValidatorDirective, decorators: [{\n            type: Directive\n        }] });\n/**\n * @description\n * Provider which adds `MaxValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst MAX_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => MaxValidator),\n    multi: true\n};\n/**\n * A directive which installs the {@link MaxValidator} for any `formControlName`,\n * `formControl`, or control with `ngModel` that also has a `max` attribute.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding a max validator\n *\n * The following example shows how to add a max validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input type=\"number\" ngModel max=\"4\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass MaxValidator extends AbstractValidatorDirective {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.inputName = 'max';\n        /** @internal */\n        this.normalizeInput = (input) => toFloat(input);\n        /** @internal */\n        this.createValidator = (max) => maxValidator(max);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MaxValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: MaxValidator, selector: \"input[type=number][max][formControlName],input[type=number][max][formControl],input[type=number][max][ngModel]\", inputs: { max: \"max\" }, host: { properties: { \"attr.max\": \"_enabled ? max : null\" } }, providers: [MAX_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MaxValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input[type=number][max][formControlName],input[type=number][max][formControl],input[type=number][max][ngModel]',\n                    providers: [MAX_VALIDATOR],\n                    host: { '[attr.max]': '_enabled ? max : null' }\n                }]\n        }], propDecorators: { max: [{\n                type: Input\n            }] } });\n/**\n * @description\n * Provider which adds `MinValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst MIN_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => MinValidator),\n    multi: true\n};\n/**\n * A directive which installs the {@link MinValidator} for any `formControlName`,\n * `formControl`, or control with `ngModel` that also has a `min` attribute.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding a min validator\n *\n * The following example shows how to add a min validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input type=\"number\" ngModel min=\"4\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass MinValidator extends AbstractValidatorDirective {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.inputName = 'min';\n        /** @internal */\n        this.normalizeInput = (input) => toFloat(input);\n        /** @internal */\n        this.createValidator = (min) => minValidator(min);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MinValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: MinValidator, selector: \"input[type=number][min][formControlName],input[type=number][min][formControl],input[type=number][min][ngModel]\", inputs: { min: \"min\" }, host: { properties: { \"attr.min\": \"_enabled ? min : null\" } }, providers: [MIN_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MinValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input[type=number][min][formControlName],input[type=number][min][formControl],input[type=number][min][ngModel]',\n                    providers: [MIN_VALIDATOR],\n                    host: { '[attr.min]': '_enabled ? min : null' }\n                }]\n        }], propDecorators: { min: [{\n                type: Input\n            }] } });\n/**\n * @description\n * Provider which adds `RequiredValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst REQUIRED_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => RequiredValidator),\n    multi: true\n};\n/**\n * @description\n * Provider which adds `CheckboxRequiredValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst CHECKBOX_REQUIRED_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => CheckboxRequiredValidator),\n    multi: true\n};\n/**\n * @description\n * A directive that adds the `required` validator to any controls marked with the\n * `required` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding a required validator using template-driven forms\n *\n * ```\n * <input name=\"fullName\" ngModel required>\n * ```\n *\n * @ngModule FormsModule\n * @ngModule ReactiveFormsModule\n * @publicApi\n */\nclass RequiredValidator extends AbstractValidatorDirective {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.inputName = 'required';\n        /** @internal */\n        this.normalizeInput = booleanAttribute;\n        /** @internal */\n        this.createValidator = (input) => requiredValidator;\n    }\n    /** @nodoc */\n    enabled(input) {\n        return input;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RequiredValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: RequiredValidator, selector: \":not([type=checkbox])[required][formControlName],:not([type=checkbox])[required][formControl],:not([type=checkbox])[required][ngModel]\", inputs: { required: \"required\" }, host: { properties: { \"attr.required\": \"_enabled ? \\\"\\\" : null\" } }, providers: [REQUIRED_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RequiredValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: ':not([type=checkbox])[required][formControlName],:not([type=checkbox])[required][formControl],:not([type=checkbox])[required][ngModel]',\n                    providers: [REQUIRED_VALIDATOR],\n                    host: { '[attr.required]': '_enabled ? \"\" : null' }\n                }]\n        }], propDecorators: { required: [{\n                type: Input\n            }] } });\n/**\n * A Directive that adds the `required` validator to checkbox controls marked with the\n * `required` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding a required checkbox validator using template-driven forms\n *\n * The following example shows how to add a checkbox required validator to an input attached to an\n * ngModel binding.\n *\n * ```\n * <input type=\"checkbox\" name=\"active\" ngModel required>\n * ```\n *\n * @publicApi\n * @ngModule FormsModule\n * @ngModule ReactiveFormsModule\n */\nclass CheckboxRequiredValidator extends RequiredValidator {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.createValidator = (input) => requiredTrueValidator;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CheckboxRequiredValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: CheckboxRequiredValidator, selector: \"input[type=checkbox][required][formControlName],input[type=checkbox][required][formControl],input[type=checkbox][required][ngModel]\", host: { properties: { \"attr.required\": \"_enabled ? \\\"\\\" : null\" } }, providers: [CHECKBOX_REQUIRED_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CheckboxRequiredValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'input[type=checkbox][required][formControlName],input[type=checkbox][required][formControl],input[type=checkbox][required][ngModel]',\n                    providers: [CHECKBOX_REQUIRED_VALIDATOR],\n                    host: { '[attr.required]': '_enabled ? \"\" : null' }\n                }]\n        }] });\n/**\n * @description\n * Provider which adds `EmailValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst EMAIL_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => EmailValidator),\n    multi: true\n};\n/**\n * A directive that adds the `email` validator to controls marked with the\n * `email` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * The email validation is based on the WHATWG HTML specification with some enhancements to\n * incorporate more RFC rules. More information can be found on the [Validators.email\n * page](api/forms/Validators#email).\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding an email validator\n *\n * The following example shows how to add an email validator to an input attached to an ngModel\n * binding.\n *\n * ```\n * <input type=\"email\" name=\"email\" ngModel email>\n * <input type=\"email\" name=\"email\" ngModel email=\"true\">\n * <input type=\"email\" name=\"email\" ngModel [email]=\"true\">\n * ```\n *\n * @publicApi\n * @ngModule FormsModule\n * @ngModule ReactiveFormsModule\n */\nclass EmailValidator extends AbstractValidatorDirective {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.inputName = 'email';\n        /** @internal */\n        this.normalizeInput = booleanAttribute;\n        /** @internal */\n        this.createValidator = (input) => emailValidator;\n    }\n    /** @nodoc */\n    enabled(input) {\n        return input;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: EmailValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: EmailValidator, selector: \"[email][formControlName],[email][formControl],[email][ngModel]\", inputs: { email: \"email\" }, providers: [EMAIL_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: EmailValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[email][formControlName],[email][formControl],[email][ngModel]',\n                    providers: [EMAIL_VALIDATOR]\n                }]\n        }], propDecorators: { email: [{\n                type: Input\n            }] } });\n/**\n * @description\n * Provider which adds `MinLengthValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst MIN_LENGTH_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => MinLengthValidator),\n    multi: true\n};\n/**\n * A directive that adds minimum length validation to controls marked with the\n * `minlength` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding a minimum length validator\n *\n * The following example shows how to add a minimum length validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input name=\"firstName\" ngModel minlength=\"4\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass MinLengthValidator extends AbstractValidatorDirective {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.inputName = 'minlength';\n        /** @internal */\n        this.normalizeInput = (input) => toInteger(input);\n        /** @internal */\n        this.createValidator = (minlength) => minLengthValidator(minlength);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MinLengthValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: MinLengthValidator, selector: \"[minlength][formControlName],[minlength][formControl],[minlength][ngModel]\", inputs: { minlength: \"minlength\" }, host: { properties: { \"attr.minlength\": \"_enabled ? minlength : null\" } }, providers: [MIN_LENGTH_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MinLengthValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[minlength][formControlName],[minlength][formControl],[minlength][ngModel]',\n                    providers: [MIN_LENGTH_VALIDATOR],\n                    host: { '[attr.minlength]': '_enabled ? minlength : null' }\n                }]\n        }], propDecorators: { minlength: [{\n                type: Input\n            }] } });\n/**\n * @description\n * Provider which adds `MaxLengthValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst MAX_LENGTH_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => MaxLengthValidator),\n    multi: true\n};\n/**\n * A directive that adds max length validation to controls marked with the\n * `maxlength` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding a maximum length validator\n *\n * The following example shows how to add a maximum length validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input name=\"firstName\" ngModel maxlength=\"25\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass MaxLengthValidator extends AbstractValidatorDirective {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.inputName = 'maxlength';\n        /** @internal */\n        this.normalizeInput = (input) => toInteger(input);\n        /** @internal */\n        this.createValidator = (maxlength) => maxLengthValidator(maxlength);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MaxLengthValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: MaxLengthValidator, selector: \"[maxlength][formControlName],[maxlength][formControl],[maxlength][ngModel]\", inputs: { maxlength: \"maxlength\" }, host: { properties: { \"attr.maxlength\": \"_enabled ? maxlength : null\" } }, providers: [MAX_LENGTH_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: MaxLengthValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[maxlength][formControlName],[maxlength][formControl],[maxlength][ngModel]',\n                    providers: [MAX_LENGTH_VALIDATOR],\n                    host: { '[attr.maxlength]': '_enabled ? maxlength : null' }\n                }]\n        }], propDecorators: { maxlength: [{\n                type: Input\n            }] } });\n/**\n * @description\n * Provider which adds `PatternValidator` to the `NG_VALIDATORS` multi-provider list.\n */\nconst PATTERN_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef(() => PatternValidator),\n    multi: true\n};\n/**\n * @description\n * A directive that adds regex pattern validation to controls marked with the\n * `pattern` attribute. The regex must match the entire control value.\n * The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * @usageNotes\n *\n * ### Adding a pattern validator\n *\n * The following example shows how to add a pattern validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input name=\"firstName\" ngModel pattern=\"[a-zA-Z ]*\">\n * ```\n *\n * @ngModule ReactiveFormsModule\n * @ngModule FormsModule\n * @publicApi\n */\nclass PatternValidator extends AbstractValidatorDirective {\n    constructor() {\n        super(...arguments);\n        /** @internal */\n        this.inputName = 'pattern';\n        /** @internal */\n        this.normalizeInput = (input) => input;\n        /** @internal */\n        this.createValidator = (input) => patternValidator(input);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PatternValidator, deps: null, target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: PatternValidator, selector: \"[pattern][formControlName],[pattern][formControl],[pattern][ngModel]\", inputs: { pattern: \"pattern\" }, host: { properties: { \"attr.pattern\": \"_enabled ? pattern : null\" } }, providers: [PATTERN_VALIDATOR], usesInheritance: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PatternValidator, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[pattern][formControlName],[pattern][formControl],[pattern][ngModel]',\n                    providers: [PATTERN_VALIDATOR],\n                    host: { '[attr.pattern]': '_enabled ? pattern : null' }\n                }]\n        }], propDecorators: { pattern: [{\n                type: Input\n            }] } });\n\nconst SHARED_FORM_DIRECTIVES = [\n    ɵNgNoValidate,\n    NgSelectOption,\n    ɵNgSelectMultipleOption,\n    DefaultValueAccessor,\n    NumberValueAccessor,\n    RangeValueAccessor,\n    CheckboxControlValueAccessor,\n    SelectControlValueAccessor,\n    SelectMultipleControlValueAccessor,\n    RadioControlValueAccessor,\n    NgControlStatus,\n    NgControlStatusGroup,\n    RequiredValidator,\n    MinLengthValidator,\n    MaxLengthValidator,\n    PatternValidator,\n    CheckboxRequiredValidator,\n    EmailValidator,\n    MinValidator,\n    MaxValidator,\n];\nconst TEMPLATE_DRIVEN_DIRECTIVES = [NgModel, NgModelGroup, NgForm];\nconst REACTIVE_DRIVEN_DIRECTIVES = [FormControlDirective, FormGroupDirective, FormControlName, FormGroupName, FormArrayName];\n/**\n * Internal module used for sharing directives between FormsModule and ReactiveFormsModule\n */\nclass ɵInternalFormsSharedModule {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵInternalFormsSharedModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵInternalFormsSharedModule, declarations: [ɵNgNoValidate,\n            NgSelectOption,\n            ɵNgSelectMultipleOption,\n            DefaultValueAccessor,\n            NumberValueAccessor,\n            RangeValueAccessor,\n            CheckboxControlValueAccessor,\n            SelectControlValueAccessor,\n            SelectMultipleControlValueAccessor,\n            RadioControlValueAccessor,\n            NgControlStatus,\n            NgControlStatusGroup,\n            RequiredValidator,\n            MinLengthValidator,\n            MaxLengthValidator,\n            PatternValidator,\n            CheckboxRequiredValidator,\n            EmailValidator,\n            MinValidator,\n            MaxValidator], imports: [RadioControlRegistryModule], exports: [ɵNgNoValidate,\n            NgSelectOption,\n            ɵNgSelectMultipleOption,\n            DefaultValueAccessor,\n            NumberValueAccessor,\n            RangeValueAccessor,\n            CheckboxControlValueAccessor,\n            SelectControlValueAccessor,\n            SelectMultipleControlValueAccessor,\n            RadioControlValueAccessor,\n            NgControlStatus,\n            NgControlStatusGroup,\n            RequiredValidator,\n            MinLengthValidator,\n            MaxLengthValidator,\n            PatternValidator,\n            CheckboxRequiredValidator,\n            EmailValidator,\n            MinValidator,\n            MaxValidator] }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵInternalFormsSharedModule, imports: [RadioControlRegistryModule] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵInternalFormsSharedModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    declarations: SHARED_FORM_DIRECTIVES,\n                    imports: [RadioControlRegistryModule],\n                    exports: SHARED_FORM_DIRECTIVES,\n                }]\n        }] });\n\n/**\n * Tracks the value and validity state of an array of `FormControl`,\n * `FormGroup` or `FormArray` instances.\n *\n * A `FormArray` aggregates the values of each child `FormControl` into an array.\n * It calculates its status by reducing the status values of its children. For example, if one of\n * the controls in a `FormArray` is invalid, the entire array becomes invalid.\n *\n * `FormArray` accepts one generic argument, which is the type of the controls inside.\n * If you need a heterogenous array, use {@link UntypedFormArray}.\n *\n * `FormArray` is one of the four fundamental building blocks used to define forms in Angular,\n * along with `FormControl`, `FormGroup`, and `FormRecord`.\n *\n * @usageNotes\n *\n * ### Create an array of form controls\n *\n * ```\n * const arr = new FormArray([\n *   new FormControl('Nancy', Validators.minLength(2)),\n *   new FormControl('Drew'),\n * ]);\n *\n * console.log(arr.value);   // ['Nancy', 'Drew']\n * console.log(arr.status);  // 'VALID'\n * ```\n *\n * ### Create a form array with array-level validators\n *\n * You include array-level validators and async validators. These come in handy\n * when you want to perform validation that considers the value of more than one child\n * control.\n *\n * The two types of validators are passed in separately as the second and third arg\n * respectively, or together as part of an options object.\n *\n * ```\n * const arr = new FormArray([\n *   new FormControl('Nancy'),\n *   new FormControl('Drew')\n * ], {validators: myValidator, asyncValidators: myAsyncValidator});\n * ```\n *\n * ### Set the updateOn property for all controls in a form array\n *\n * The options object is used to set a default value for each child\n * control's `updateOn` property. If you set `updateOn` to `'blur'` at the\n * array level, all child controls default to 'blur', unless the child\n * has explicitly specified a different `updateOn` value.\n *\n * ```ts\n * const arr = new FormArray([\n *    new FormControl()\n * ], {updateOn: 'blur'});\n * ```\n *\n * ### Adding or removing controls from a form array\n *\n * To change the controls in the array, use the `push`, `insert`, `removeAt` or `clear` methods\n * in `FormArray` itself. These methods ensure the controls are properly tracked in the\n * form's hierarchy. Do not modify the array of `AbstractControl`s used to instantiate\n * the `FormArray` directly, as that result in strange and unexpected behavior such\n * as broken change detection.\n *\n * @publicApi\n */\nclass FormArray extends AbstractControl {\n    /**\n     * Creates a new `FormArray` instance.\n     *\n     * @param controls An array of child controls. Each child control is given an index\n     * where it is registered.\n     *\n     * @param validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or an `AbstractControlOptions` object that contains validation functions\n     * and a validation trigger.\n     *\n     * @param asyncValidator A single async validator or array of async validator functions\n     *\n     */\n    constructor(controls, validatorOrOpts, asyncValidator) {\n        super(pickValidators(validatorOrOpts), pickAsyncValidators(asyncValidator, validatorOrOpts));\n        this.controls = controls;\n        this._initObservables();\n        this._setUpdateStrategy(validatorOrOpts);\n        this._setUpControls();\n        this.updateValueAndValidity({\n            onlySelf: true,\n            // If `asyncValidator` is present, it will trigger control status change from `PENDING` to\n            // `VALID` or `INVALID`.\n            // The status should be broadcasted via the `statusChanges` observable, so we set `emitEvent`\n            // to `true` to allow that during the control creation process.\n            emitEvent: !!this.asyncValidator\n        });\n    }\n    /**\n     * Get the `AbstractControl` at the given `index` in the array.\n     *\n     * @param index Index in the array to retrieve the control. If `index` is negative, it will wrap\n     *     around from the back, and if index is greatly negative (less than `-length`), the result is\n     * undefined. This behavior is the same as `Array.at(index)`.\n     */\n    at(index) {\n        return this.controls[this._adjustIndex(index)];\n    }\n    /**\n     * Insert a new `AbstractControl` at the end of the array.\n     *\n     * @param control Form control to be inserted\n     * @param options Specifies whether this FormArray instance should emit events after a new\n     *     control is added.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when the control is\n     * inserted. When false, no events are emitted.\n     */\n    push(control, options = {}) {\n        this.controls.push(control);\n        this._registerControl(control);\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n        this._onCollectionChange();\n    }\n    /**\n     * Insert a new `AbstractControl` at the given `index` in the array.\n     *\n     * @param index Index in the array to insert the control. If `index` is negative, wraps around\n     *     from the back. If `index` is greatly negative (less than `-length`), prepends to the array.\n     * This behavior is the same as `Array.splice(index, 0, control)`.\n     * @param control Form control to be inserted\n     * @param options Specifies whether this FormArray instance should emit events after a new\n     *     control is inserted.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when the control is\n     * inserted. When false, no events are emitted.\n     */\n    insert(index, control, options = {}) {\n        this.controls.splice(index, 0, control);\n        this._registerControl(control);\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n    }\n    /**\n     * Remove the control at the given `index` in the array.\n     *\n     * @param index Index in the array to remove the control.  If `index` is negative, wraps around\n     *     from the back. If `index` is greatly negative (less than `-length`), removes the first\n     *     element. This behavior is the same as `Array.splice(index, 1)`.\n     * @param options Specifies whether this FormArray instance should emit events after a\n     *     control is removed.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when the control is\n     * removed. When false, no events are emitted.\n     */\n    removeAt(index, options = {}) {\n        // Adjust the index, then clamp it at no less than 0 to prevent undesired underflows.\n        let adjustedIndex = this._adjustIndex(index);\n        if (adjustedIndex < 0)\n            adjustedIndex = 0;\n        if (this.controls[adjustedIndex])\n            this.controls[adjustedIndex]._registerOnCollectionChange(() => { });\n        this.controls.splice(adjustedIndex, 1);\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n    }\n    /**\n     * Replace an existing control.\n     *\n     * @param index Index in the array to replace the control. If `index` is negative, wraps around\n     *     from the back. If `index` is greatly negative (less than `-length`), replaces the first\n     *     element. This behavior is the same as `Array.splice(index, 1, control)`.\n     * @param control The `AbstractControl` control to replace the existing control\n     * @param options Specifies whether this FormArray instance should emit events after an\n     *     existing control is replaced with a new one.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when the control is\n     * replaced with a new one. When false, no events are emitted.\n     */\n    setControl(index, control, options = {}) {\n        // Adjust the index, then clamp it at no less than 0 to prevent undesired underflows.\n        let adjustedIndex = this._adjustIndex(index);\n        if (adjustedIndex < 0)\n            adjustedIndex = 0;\n        if (this.controls[adjustedIndex])\n            this.controls[adjustedIndex]._registerOnCollectionChange(() => { });\n        this.controls.splice(adjustedIndex, 1);\n        if (control) {\n            this.controls.splice(adjustedIndex, 0, control);\n            this._registerControl(control);\n        }\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n        this._onCollectionChange();\n    }\n    /**\n     * Length of the control array.\n     */\n    get length() {\n        return this.controls.length;\n    }\n    /**\n     * Sets the value of the `FormArray`. It accepts an array that matches\n     * the structure of the control.\n     *\n     * This method performs strict checks, and throws an error if you try\n     * to set the value of a control that doesn't exist or if you exclude the\n     * value of a control.\n     *\n     * @usageNotes\n     * ### Set the values for the controls in the form array\n     *\n     * ```\n     * const arr = new FormArray([\n     *   new FormControl(),\n     *   new FormControl()\n     * ]);\n     * console.log(arr.value);   // [null, null]\n     *\n     * arr.setValue(['Nancy', 'Drew']);\n     * console.log(arr.value);   // ['Nancy', 'Drew']\n     * ```\n     *\n     * @param value Array of values for the controls\n     * @param options Configure options that determine how the control propagates changes and\n     * emits events after the value changes\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default\n     * is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control value is updated.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     */\n    setValue(value, options = {}) {\n        assertAllValuesPresent(this, false, value);\n        value.forEach((newValue, index) => {\n            assertControlPresent(this, false, index);\n            this.at(index).setValue(newValue, { onlySelf: true, emitEvent: options.emitEvent });\n        });\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Patches the value of the `FormArray`. It accepts an array that matches the\n     * structure of the control, and does its best to match the values to the correct\n     * controls in the group.\n     *\n     * It accepts both super-sets and sub-sets of the array without throwing an error.\n     *\n     * @usageNotes\n     * ### Patch the values for controls in a form array\n     *\n     * ```\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     * console.log(arr.value);   // [null, null]\n     *\n     * arr.patchValue(['Nancy']);\n     * console.log(arr.value);   // ['Nancy', null]\n     * ```\n     *\n     * @param value Array of latest values for the controls\n     * @param options Configure options that determine how the control propagates changes and\n     * emits events after the value changes\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default\n     * is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when the control\n     * value is updated. When false, no events are emitted. The configuration options are passed to\n     * the {@link AbstractControl#updateValueAndValidity updateValueAndValidity} method.\n     */\n    patchValue(value, options = {}) {\n        // Even though the `value` argument type doesn't allow `null` and `undefined` values, the\n        // `patchValue` can be called recursively and inner data structures might have these values,\n        // so we just ignore such cases when a field containing FormArray instance receives `null` or\n        // `undefined` as a value.\n        if (value == null /* both `null` and `undefined` */)\n            return;\n        value.forEach((newValue, index) => {\n            if (this.at(index)) {\n                this.at(index).patchValue(newValue, { onlySelf: true, emitEvent: options.emitEvent });\n            }\n        });\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Resets the `FormArray` and all descendants are marked `pristine` and `untouched`, and the\n     * value of all descendants to null or null maps.\n     *\n     * You reset to a specific form state by passing in an array of states\n     * that matches the structure of the control. The state is a standalone value\n     * or a form state object with both a value and a disabled status.\n     *\n     * @usageNotes\n     * ### Reset the values in a form array\n     *\n     * ```ts\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     * arr.reset(['name', 'last name']);\n     *\n     * console.log(arr.value);  // ['name', 'last name']\n     * ```\n     *\n     * ### Reset the values in a form array and the disabled status for the first control\n     *\n     * ```\n     * arr.reset([\n     *   {value: 'name', disabled: true},\n     *   'last'\n     * ]);\n     *\n     * console.log(arr.value);  // ['last']\n     * console.log(arr.at(0).status);  // 'DISABLED'\n     * ```\n     *\n     * @param value Array of values for the controls\n     * @param options Configure options that determine how the control propagates changes and\n     * emits events after the value changes\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default\n     * is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is reset.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     */\n    reset(value = [], options = {}) {\n        this._forEachChild((control, index) => {\n            control.reset(value[index], { onlySelf: true, emitEvent: options.emitEvent });\n        });\n        this._updatePristine(options);\n        this._updateTouched(options);\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * The aggregate value of the array, including any disabled controls.\n     *\n     * Reports all values regardless of disabled status.\n     */\n    getRawValue() {\n        return this.controls.map((control) => control.getRawValue());\n    }\n    /**\n     * Remove all controls in the `FormArray`.\n     *\n     * @param options Specifies whether this FormArray instance should emit events after all\n     *     controls are removed.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges` observables emit events with the latest status and value when all controls\n     * in this FormArray instance are removed. When false, no events are emitted.\n     *\n     * @usageNotes\n     * ### Remove all elements from a FormArray\n     *\n     * ```ts\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     * console.log(arr.length);  // 2\n     *\n     * arr.clear();\n     * console.log(arr.length);  // 0\n     * ```\n     *\n     * It's a simpler and more efficient alternative to removing all elements one by one:\n     *\n     * ```ts\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     *\n     * while (arr.length) {\n     *    arr.removeAt(0);\n     * }\n     * ```\n     */\n    clear(options = {}) {\n        if (this.controls.length < 1)\n            return;\n        this._forEachChild((control) => control._registerOnCollectionChange(() => { }));\n        this.controls.splice(0);\n        this.updateValueAndValidity({ emitEvent: options.emitEvent });\n    }\n    /**\n     * Adjusts a negative index by summing it with the length of the array. For very negative\n     * indices, the result may remain negative.\n     * @internal\n     */\n    _adjustIndex(index) {\n        return index < 0 ? index + this.length : index;\n    }\n    /** @internal */\n    _syncPendingControls() {\n        let subtreeUpdated = this.controls.reduce((updated, child) => {\n            return child._syncPendingControls() ? true : updated;\n        }, false);\n        if (subtreeUpdated)\n            this.updateValueAndValidity({ onlySelf: true });\n        return subtreeUpdated;\n    }\n    /** @internal */\n    _forEachChild(cb) {\n        this.controls.forEach((control, index) => {\n            cb(control, index);\n        });\n    }\n    /** @internal */\n    _updateValue() {\n        this.value =\n            this.controls.filter((control) => control.enabled || this.disabled)\n                .map((control) => control.value);\n    }\n    /** @internal */\n    _anyControls(condition) {\n        return this.controls.some((control) => control.enabled && condition(control));\n    }\n    /** @internal */\n    _setUpControls() {\n        this._forEachChild((control) => this._registerControl(control));\n    }\n    /** @internal */\n    _allControlsDisabled() {\n        for (const control of this.controls) {\n            if (control.enabled)\n                return false;\n        }\n        return this.controls.length > 0 || this.disabled;\n    }\n    _registerControl(control) {\n        control.setParent(this);\n        control._registerOnCollectionChange(this._onCollectionChange);\n    }\n    /** @internal */\n    _find(name) {\n        return this.at(name) ?? null;\n    }\n}\nconst UntypedFormArray = FormArray;\n/**\n * @description\n * Asserts that the given control is an instance of `FormArray`\n *\n * @publicApi\n */\nconst isFormArray = (control) => control instanceof FormArray;\n\nfunction isAbstractControlOptions(options) {\n    return !!options &&\n        (options.asyncValidators !== undefined ||\n            options.validators !== undefined ||\n            options.updateOn !== undefined);\n}\n// clang-format on\n/**\n * @description\n * Creates an `AbstractControl` from a user-specified configuration.\n *\n * The `FormBuilder` provides syntactic sugar that shortens creating instances of a\n * `FormControl`, `FormGroup`, or `FormArray`. It reduces the amount of boilerplate needed to\n * build complex forms.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n *\n * @publicApi\n */\nclass FormBuilder {\n    constructor() {\n        this.useNonNullable = false;\n    }\n    /**\n     * @description\n     * Returns a FormBuilder in which automatically constructed `FormControl` elements\n     * have `{nonNullable: true}` and are non-nullable.\n     *\n     * **Constructing non-nullable controls**\n     *\n     * When constructing a control, it will be non-nullable, and will reset to its initial value.\n     *\n     * ```ts\n     * let nnfb = new FormBuilder().nonNullable;\n     * let name = nnfb.control('Alex'); // FormControl<string>\n     * name.reset();\n     * console.log(name); // 'Alex'\n     * ```\n     *\n     * **Constructing non-nullable groups or arrays**\n     *\n     * When constructing a group or array, all automatically created inner controls will be\n     * non-nullable, and will reset to their initial values.\n     *\n     * ```ts\n     * let nnfb = new FormBuilder().nonNullable;\n     * let name = nnfb.group({who: 'Alex'}); // FormGroup<{who: FormControl<string>}>\n     * name.reset();\n     * console.log(name); // {who: 'Alex'}\n     * ```\n     * **Constructing *nullable* fields on groups or arrays**\n     *\n     * It is still possible to have a nullable field. In particular, any `FormControl` which is\n     * *already* constructed will not be altered. For example:\n     *\n     * ```ts\n     * let nnfb = new FormBuilder().nonNullable;\n     * // FormGroup<{who: FormControl<string|null>}>\n     * let name = nnfb.group({who: new FormControl('Alex')});\n     * name.reset(); console.log(name); // {who: null}\n     * ```\n     *\n     * Because the inner control is constructed explicitly by the caller, the builder has\n     * no control over how it is created, and cannot exclude the `null`.\n     */\n    get nonNullable() {\n        const nnfb = new FormBuilder();\n        nnfb.useNonNullable = true;\n        return nnfb;\n    }\n    group(controls, options = null) {\n        const reducedControls = this._reduceControls(controls);\n        let newOptions = {};\n        if (isAbstractControlOptions(options)) {\n            // `options` are `AbstractControlOptions`\n            newOptions = options;\n        }\n        else if (options !== null) {\n            // `options` are legacy form group options\n            newOptions.validators = options.validator;\n            newOptions.asyncValidators = options.asyncValidator;\n        }\n        return new FormGroup(reducedControls, newOptions);\n    }\n    /**\n     * @description\n     * Constructs a new `FormRecord` instance. Accepts a single generic argument, which is an object\n     * containing all the keys and corresponding inner control types.\n     *\n     * @param controls A collection of child controls. The key for each child is the name\n     * under which it is registered.\n     *\n     * @param options Configuration options object for the `FormRecord`. The object should have the\n     * `AbstractControlOptions` type and might contain the following fields:\n     * * `validators`: A synchronous validator function, or an array of validator functions.\n     * * `asyncValidators`: A single async validator or array of async validator functions.\n     * * `updateOn`: The event upon which the control should be updated (options: 'change' | 'blur'\n     * | submit').\n     */\n    record(controls, options = null) {\n        const reducedControls = this._reduceControls(controls);\n        // Cast to `any` because the inferred types are not as specific as Element.\n        return new FormRecord(reducedControls, options);\n    }\n    /**\n     * @description\n     * Constructs a new `FormControl` with the given state, validators and options. Sets\n     * `{nonNullable: true}` in the options to get a non-nullable control. Otherwise, the\n     * control will be nullable. Accepts a single generic argument, which is the type  of the\n     * control's value.\n     *\n     * @param formState Initializes the control with an initial state value, or\n     * with an object that contains both a value and a disabled status.\n     *\n     * @param validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or a `FormControlOptions` object that contains\n     * validation functions and a validation trigger.\n     *\n     * @param asyncValidator A single async validator or array of async validator\n     * functions.\n     *\n     * @usageNotes\n     *\n     * ### Initialize a control as disabled\n     *\n     * The following example returns a control with an initial value in a disabled state.\n     *\n     * <code-example path=\"forms/ts/formBuilder/form_builder_example.ts\" region=\"disabled-control\">\n     * </code-example>\n     */\n    control(formState, validatorOrOpts, asyncValidator) {\n        let newOptions = {};\n        if (!this.useNonNullable) {\n            return new FormControl(formState, validatorOrOpts, asyncValidator);\n        }\n        if (isAbstractControlOptions(validatorOrOpts)) {\n            // If the second argument is options, then they are copied.\n            newOptions = validatorOrOpts;\n        }\n        else {\n            // If the other arguments are validators, they are copied into an options object.\n            newOptions.validators = validatorOrOpts;\n            newOptions.asyncValidators = asyncValidator;\n        }\n        return new FormControl(formState, { ...newOptions, nonNullable: true });\n    }\n    /**\n     * Constructs a new `FormArray` from the given array of configurations,\n     * validators and options. Accepts a single generic argument, which is the type of each control\n     * inside the array.\n     *\n     * @param controls An array of child controls or control configs. Each child control is given an\n     *     index when it is registered.\n     *\n     * @param validatorOrOpts A synchronous validator function, or an array of such functions, or an\n     *     `AbstractControlOptions` object that contains\n     * validation functions and a validation trigger.\n     *\n     * @param asyncValidator A single async validator or array of async validator functions.\n     */\n    array(controls, validatorOrOpts, asyncValidator) {\n        const createdControls = controls.map(c => this._createControl(c));\n        // Cast to `any` because the inferred types are not as specific as Element.\n        return new FormArray(createdControls, validatorOrOpts, asyncValidator);\n    }\n    /** @internal */\n    _reduceControls(controls) {\n        const createdControls = {};\n        Object.keys(controls).forEach(controlName => {\n            createdControls[controlName] = this._createControl(controls[controlName]);\n        });\n        return createdControls;\n    }\n    /** @internal */\n    _createControl(controls) {\n        if (controls instanceof FormControl) {\n            return controls;\n        }\n        else if (controls instanceof AbstractControl) { // A control; just return it\n            return controls;\n        }\n        else if (Array.isArray(controls)) { // ControlConfig Tuple\n            const value = controls[0];\n            const validator = controls.length > 1 ? controls[1] : null;\n            const asyncValidator = controls.length > 2 ? controls[2] : null;\n            return this.control(value, validator, asyncValidator);\n        }\n        else { // T or FormControlState<T>\n            return this.control(controls);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormBuilder, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormBuilder, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormBuilder, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n/**\n * @description\n * `NonNullableFormBuilder` is similar to {@link FormBuilder}, but automatically constructed\n * {@link FormControl} elements have `{nonNullable: true}` and are non-nullable.\n *\n * @publicApi\n */\nclass NonNullableFormBuilder {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NonNullableFormBuilder, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NonNullableFormBuilder, providedIn: 'root', useFactory: () => inject(FormBuilder).nonNullable }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NonNullableFormBuilder, decorators: [{\n            type: Injectable,\n            args: [{\n                    providedIn: 'root',\n                    useFactory: () => inject(FormBuilder).nonNullable,\n                }]\n        }] });\n/**\n * UntypedFormBuilder is the same as `FormBuilder`, but it provides untyped controls.\n */\nclass UntypedFormBuilder extends FormBuilder {\n    group(controlsConfig, options = null) {\n        return super.group(controlsConfig, options);\n    }\n    /**\n     * Like `FormBuilder#control`, except the resulting control is untyped.\n     */\n    control(formState, validatorOrOpts, asyncValidator) {\n        return super.control(formState, validatorOrOpts, asyncValidator);\n    }\n    /**\n     * Like `FormBuilder#array`, except the resulting array is untyped.\n     */\n    array(controlsConfig, validatorOrOpts, asyncValidator) {\n        return super.array(controlsConfig, validatorOrOpts, asyncValidator);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UntypedFormBuilder, deps: null, target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UntypedFormBuilder, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UntypedFormBuilder, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of the forms package.\n */\n/**\n * @publicApi\n */\nconst VERSION = new Version('16.2.12');\n\n/**\n * Exports the required providers and directives for template-driven forms,\n * making them available for import by NgModules that import this module.\n *\n * Providers associated with this module:\n * * `RadioControlRegistry`\n *\n * @see [Forms Overview](/guide/forms-overview)\n * @see [Template-driven Forms Guide](/guide/forms)\n *\n * @publicApi\n */\nclass FormsModule {\n    /**\n     * @description\n     * Provides options for configuring the forms module.\n     *\n     * @param opts An object of configuration options\n     * * `callSetDisabledState` Configures whether to `always` call `setDisabledState`, which is more\n     * correct, or to only call it `whenDisabled`, which is the legacy behavior.\n     */\n    static withConfig(opts) {\n        return {\n            ngModule: FormsModule,\n            providers: [{\n                    provide: CALL_SET_DISABLED_STATE,\n                    useValue: opts.callSetDisabledState ?? setDisabledStateDefault\n                }]\n        };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormsModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: FormsModule, declarations: [NgModel, NgModelGroup, NgForm], exports: [ɵInternalFormsSharedModule, NgModel, NgModelGroup, NgForm] }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormsModule, imports: [ɵInternalFormsSharedModule] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FormsModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    declarations: TEMPLATE_DRIVEN_DIRECTIVES,\n                    exports: [ɵInternalFormsSharedModule, TEMPLATE_DRIVEN_DIRECTIVES]\n                }]\n        }] });\n/**\n * Exports the required infrastructure and directives for reactive forms,\n * making them available for import by NgModules that import this module.\n *\n * Providers associated with this module:\n * * `RadioControlRegistry`\n *\n * @see [Forms Overview](guide/forms-overview)\n * @see [Reactive Forms Guide](guide/reactive-forms)\n *\n * @publicApi\n */\nclass ReactiveFormsModule {\n    /**\n     * @description\n     * Provides options for configuring the reactive forms module.\n     *\n     * @param opts An object of configuration options\n     * * `warnOnNgModelWithFormControl` Configures when to emit a warning when an `ngModel`\n     * binding is used with reactive form directives.\n     * * `callSetDisabledState` Configures whether to `always` call `setDisabledState`, which is more\n     * correct, or to only call it `whenDisabled`, which is the legacy behavior.\n     */\n    static withConfig(opts) {\n        return {\n            ngModule: ReactiveFormsModule,\n            providers: [\n                {\n                    provide: NG_MODEL_WITH_FORM_CONTROL_WARNING,\n                    useValue: opts.warnOnNgModelWithFormControl ?? 'always'\n                },\n                {\n                    provide: CALL_SET_DISABLED_STATE,\n                    useValue: opts.callSetDisabledState ?? setDisabledStateDefault\n                }\n            ]\n        };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ReactiveFormsModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: ReactiveFormsModule, declarations: [FormControlDirective, FormGroupDirective, FormControlName, FormGroupName, FormArrayName], exports: [ɵInternalFormsSharedModule, FormControlDirective, FormGroupDirective, FormControlName, FormGroupName, FormArrayName] }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ReactiveFormsModule, imports: [ɵInternalFormsSharedModule] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ReactiveFormsModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    declarations: [REACTIVE_DRIVEN_DIRECTIVES],\n                    exports: [ɵInternalFormsSharedModule, REACTIVE_DRIVEN_DIRECTIVES]\n                }]\n        }] });\n\n/**\n * @module\n * @description\n * This module is used for handling user input, by defining and building a `FormGroup` that\n * consists of `FormControl` objects, and mapping them onto the DOM. `FormControl`\n * objects can then be used to read information from the form DOM elements.\n *\n * Forms providers are not included in default providers; you must import these providers\n * explicitly.\n */\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\n// This file only reexports content of the `src` folder. Keep it that way.\n\n// This file is not used to build this module. It is only used during editing\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { AbstractControl, AbstractControlDirective, AbstractFormGroupDirective, COMPOSITION_BUFFER_MODE, CheckboxControlValueAccessor, CheckboxRequiredValidator, ControlContainer, DefaultValueAccessor, EmailValidator, FormArray, FormArrayName, FormBuilder, FormControl, FormControlDirective, FormControlName, FormGroup, FormGroupDirective, FormGroupName, FormRecord, FormsModule, MaxLengthValidator, MaxValidator, MinLengthValidator, MinValidator, NG_ASYNC_VALIDATORS, NG_VALIDATORS, NG_VALUE_ACCESSOR, NgControl, NgControlStatus, NgControlStatusGroup, NgForm, NgModel, NgModelGroup, NgSelectOption, NonNullableFormBuilder, NumberValueAccessor, PatternValidator, RadioControlValueAccessor, RangeValueAccessor, ReactiveFormsModule, RequiredValidator, SelectControlValueAccessor, SelectMultipleControlValueAccessor, UntypedFormArray, UntypedFormBuilder, UntypedFormControl, UntypedFormGroup, VERSION, Validators, isFormArray, isFormControl, isFormGroup, isFormRecord, ɵInternalFormsSharedModule, ɵNgNoValidate, ɵNgSelectMultipleOption };\n","/**\n * This serves as a build time flag that will be true by default, but false in non-debug builds or if users replace `__SENTRY_DEBUG__` in their generated code.\n *\n * ATTENTION: This constant must never cross package boundaries (i.e. be exported) to guarantee that it can be used for tree shaking.\n */\nconst DEBUG_BUILD = (typeof __SENTRY_DEBUG__ === 'undefined' || __SENTRY_DEBUG__);\n\nexport { DEBUG_BUILD };\n","// This is a magic string replaced by rollup\n\nconst SDK_VERSION = \"8.42.0\" ;\n\nexport { SDK_VERSION };\n","import { SDK_VERSION } from './version.js';\n\n/** Get's the global object for the current JavaScript runtime */\nconst GLOBAL_OBJ = globalThis ;\n\n/**\n * Returns a global singleton contained in the global `__SENTRY__[]` object.\n *\n * If the singleton doesn't already exist in `__SENTRY__`, it will be created using the given factory\n * function and added to the `__SENTRY__` object.\n *\n * @param name name of the global singleton on __SENTRY__\n * @param creator creator Factory function to create the singleton if it doesn't already exist on `__SENTRY__`\n * @param obj (Optional) The global object on which to look for `__SENTRY__`, if not `GLOBAL_OBJ`'s return value\n * @returns the singleton\n */\nfunction getGlobalSingleton(name, creator, obj) {\n  const gbl = (obj || GLOBAL_OBJ) ;\n  const __SENTRY__ = (gbl.__SENTRY__ = gbl.__SENTRY__ || {});\n  const versionedCarrier = (__SENTRY__[SDK_VERSION] = __SENTRY__[SDK_VERSION] || {});\n  return versionedCarrier[name] || (versionedCarrier[name] = creator());\n}\n\nexport { GLOBAL_OBJ, getGlobalSingleton };\n","import { DEBUG_BUILD } from './debug-build.js';\nimport { getGlobalSingleton, GLOBAL_OBJ } from './worldwide.js';\n\n/** Prefix for logging strings */\nconst PREFIX = 'Sentry Logger ';\n\nconst CONSOLE_LEVELS = [\n  'debug',\n  'info',\n  'warn',\n  'error',\n  'log',\n  'assert',\n  'trace',\n] ;\n\n/** This may be mutated by the console instrumentation. */\nconst originalConsoleMethods\n\n = {};\n\n/** JSDoc */\n\n/**\n * Temporarily disable sentry console instrumentations.\n *\n * @param callback The function to run against the original `console` messages\n * @returns The results of the callback\n */\nfunction consoleSandbox(callback) {\n  if (!('console' in GLOBAL_OBJ)) {\n    return callback();\n  }\n\n  const console = GLOBAL_OBJ.console ;\n  const wrappedFuncs = {};\n\n  const wrappedLevels = Object.keys(originalConsoleMethods) ;\n\n  // Restore all wrapped console methods\n  wrappedLevels.forEach(level => {\n    const originalConsoleMethod = originalConsoleMethods[level] ;\n    wrappedFuncs[level] = console[level] ;\n    console[level] = originalConsoleMethod;\n  });\n\n  try {\n    return callback();\n  } finally {\n    // Revert restoration to wrapped state\n    wrappedLevels.forEach(level => {\n      console[level] = wrappedFuncs[level] ;\n    });\n  }\n}\n\nfunction makeLogger() {\n  let enabled = false;\n  const logger = {\n    enable: () => {\n      enabled = true;\n    },\n    disable: () => {\n      enabled = false;\n    },\n    isEnabled: () => enabled,\n  };\n\n  if (DEBUG_BUILD) {\n    CONSOLE_LEVELS.forEach(name => {\n      // eslint-disable-next-line @typescript-eslint/no-explicit-any\n      logger[name] = (...args) => {\n        if (enabled) {\n          consoleSandbox(() => {\n            GLOBAL_OBJ.console[name](`${PREFIX}[${name}]:`, ...args);\n          });\n        }\n      };\n    });\n  } else {\n    CONSOLE_LEVELS.forEach(name => {\n      logger[name] = () => undefined;\n    });\n  }\n\n  return logger ;\n}\n\n/**\n * This is a logger singleton which either logs things or no-ops if logging is not enabled.\n * The logger is a singleton on the carrier, to ensure that a consistent logger is used throughout the SDK.\n */\nconst logger = getGlobalSingleton('logger', makeLogger);\n\nexport { CONSOLE_LEVELS, consoleSandbox, logger, originalConsoleMethods };\n","const STACKTRACE_FRAME_LIMIT = 50;\nconst UNKNOWN_FUNCTION = '?';\n// Used to sanitize webpack (error: *) wrapped stack errors\nconst WEBPACK_ERROR_REGEXP = /\\(error: (.*)\\)/;\nconst STRIP_FRAME_REGEXP = /captureMessage|captureException/;\n\n/**\n * Creates a stack parser with the supplied line parsers\n *\n * StackFrames are returned in the correct order for Sentry Exception\n * frames and with Sentry SDK internal frames removed from the top and bottom\n *\n */\nfunction createStackParser(...parsers) {\n  const sortedParsers = parsers.sort((a, b) => a[0] - b[0]).map(p => p[1]);\n\n  return (stack, skipFirstLines = 0, framesToPop = 0) => {\n    const frames = [];\n    const lines = stack.split('\\n');\n\n    for (let i = skipFirstLines; i < lines.length; i++) {\n      const line = lines[i] ;\n      // Ignore lines over 1kb as they are unlikely to be stack frames.\n      // Many of the regular expressions use backtracking which results in run time that increases exponentially with\n      // input size. Huge strings can result in hangs/Denial of Service:\n      // https://github.com/getsentry/sentry-javascript/issues/2286\n      if (line.length > 1024) {\n        continue;\n      }\n\n      // https://github.com/getsentry/sentry-javascript/issues/5459\n      // Remove webpack (error: *) wrappers\n      const cleanedLine = WEBPACK_ERROR_REGEXP.test(line) ? line.replace(WEBPACK_ERROR_REGEXP, '$1') : line;\n\n      // https://github.com/getsentry/sentry-javascript/issues/7813\n      // Skip Error: lines\n      if (cleanedLine.match(/\\S*Error: /)) {\n        continue;\n      }\n\n      for (const parser of sortedParsers) {\n        const frame = parser(cleanedLine);\n\n        if (frame) {\n          frames.push(frame);\n          break;\n        }\n      }\n\n      if (frames.length >= STACKTRACE_FRAME_LIMIT + framesToPop) {\n        break;\n      }\n    }\n\n    return stripSentryFramesAndReverse(frames.slice(framesToPop));\n  };\n}\n\n/**\n * Gets a stack parser implementation from Options.stackParser\n * @see Options\n *\n * If options contains an array of line parsers, it is converted into a parser\n */\nfunction stackParserFromStackParserOptions(stackParser) {\n  if (Array.isArray(stackParser)) {\n    return createStackParser(...stackParser);\n  }\n  return stackParser;\n}\n\n/**\n * Removes Sentry frames from the top and bottom of the stack if present and enforces a limit of max number of frames.\n * Assumes stack input is ordered from top to bottom and returns the reverse representation so call site of the\n * function that caused the crash is the last frame in the array.\n * @hidden\n */\nfunction stripSentryFramesAndReverse(stack) {\n  if (!stack.length) {\n    return [];\n  }\n\n  const localStack = Array.from(stack);\n\n  // If stack starts with one of our API calls, remove it (starts, meaning it's the top of the stack - aka last call)\n  if (/sentryWrapped/.test(getLastStackFrame(localStack).function || '')) {\n    localStack.pop();\n  }\n\n  // Reversing in the middle of the procedure allows us to just pop the values off the stack\n  localStack.reverse();\n\n  // If stack ends with one of our internal API calls, remove it (ends, meaning it's the bottom of the stack - aka top-most call)\n  if (STRIP_FRAME_REGEXP.test(getLastStackFrame(localStack).function || '')) {\n    localStack.pop();\n\n    // When using synthetic events, we will have a 2 levels deep stack, as `new Error('Sentry syntheticException')`\n    // is produced within the hub itself, making it:\n    //\n    //   Sentry.captureException()\n    //   getCurrentHub().captureException()\n    //\n    // instead of just the top `Sentry` call itself.\n    // This forces us to possibly strip an additional frame in the exact same was as above.\n    if (STRIP_FRAME_REGEXP.test(getLastStackFrame(localStack).function || '')) {\n      localStack.pop();\n    }\n  }\n\n  return localStack.slice(0, STACKTRACE_FRAME_LIMIT).map(frame => ({\n    ...frame,\n    filename: frame.filename || getLastStackFrame(localStack).filename,\n    function: frame.function || UNKNOWN_FUNCTION,\n  }));\n}\n\nfunction getLastStackFrame(arr) {\n  return arr[arr.length - 1] || {};\n}\n\nconst defaultFunctionName = '<anonymous>';\n\n/**\n * Safely extract function name from itself\n */\nfunction getFunctionName(fn) {\n  try {\n    if (!fn || typeof fn !== 'function') {\n      return defaultFunctionName;\n    }\n    return fn.name || defaultFunctionName;\n  } catch (e) {\n    // Just accessing custom props in some Selenium environments\n    // can cause a \"Permission denied\" exception (see raven-js#495).\n    return defaultFunctionName;\n  }\n}\n\n/**\n * Get's stack frames from an event without needing to check for undefined properties.\n */\nfunction getFramesFromEvent(event) {\n  const exception = event.exception;\n\n  if (exception) {\n    const frames = [];\n    try {\n      // @ts-expect-error Object could be undefined\n      exception.values.forEach(value => {\n        // @ts-expect-error Value could be undefined\n        if (value.stacktrace.frames) {\n          // @ts-expect-error Value could be undefined\n          frames.push(...value.stacktrace.frames);\n        }\n      });\n      return frames;\n    } catch (_oO) {\n      return undefined;\n    }\n  }\n  return undefined;\n}\n\nexport { UNKNOWN_FUNCTION, createStackParser, getFramesFromEvent, getFunctionName, stackParserFromStackParserOptions, stripSentryFramesAndReverse };\n","import { DEBUG_BUILD } from '../debug-build.js';\nimport { logger } from '../logger.js';\nimport { getFunctionName } from '../stacktrace.js';\n\n// We keep the handlers globally\nconst handlers = {};\nconst instrumented = {};\n\n/** Add a handler function. */\nfunction addHandler(type, handler) {\n  handlers[type] = handlers[type] || [];\n  (handlers[type] ).push(handler);\n}\n\n/**\n * Reset all instrumentation handlers.\n * This can be used by tests to ensure we have a clean slate of instrumentation handlers.\n */\nfunction resetInstrumentationHandlers() {\n  Object.keys(handlers).forEach(key => {\n    handlers[key ] = undefined;\n  });\n}\n\n/** Maybe run an instrumentation function, unless it was already called. */\nfunction maybeInstrument(type, instrumentFn) {\n  if (!instrumented[type]) {\n    instrumented[type] = true;\n    try {\n      instrumentFn();\n    } catch (e) {\n      DEBUG_BUILD && logger.error(`Error while instrumenting ${type}`, e);\n    }\n  }\n}\n\n/** Trigger handlers for a given instrumentation type. */\nfunction triggerHandlers(type, data) {\n  const typeHandlers = type && handlers[type];\n  if (!typeHandlers) {\n    return;\n  }\n\n  for (const handler of typeHandlers) {\n    try {\n      handler(data);\n    } catch (e) {\n      DEBUG_BUILD &&\n        logger.error(\n          `Error while triggering instrumentation handler.\\nType: ${type}\\nName: ${getFunctionName(handler)}\\nError:`,\n          e,\n        );\n    }\n  }\n}\n\nexport { addHandler, maybeInstrument, resetInstrumentationHandlers, triggerHandlers };\n","// eslint-disable-next-line @typescript-eslint/unbound-method\nconst objectToString = Object.prototype.toString;\n\n/**\n * Checks whether given value's type is one of a few Error or Error-like\n * {@link isError}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isError(wat) {\n  switch (objectToString.call(wat)) {\n    case '[object Error]':\n    case '[object Exception]':\n    case '[object DOMException]':\n    case '[object WebAssembly.Exception]':\n      return true;\n    default:\n      return isInstanceOf(wat, Error);\n  }\n}\n/**\n * Checks whether given value is an instance of the given built-in class.\n *\n * @param wat The value to be checked\n * @param className\n * @returns A boolean representing the result.\n */\nfunction isBuiltin(wat, className) {\n  return objectToString.call(wat) === `[object ${className}]`;\n}\n\n/**\n * Checks whether given value's type is ErrorEvent\n * {@link isErrorEvent}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isErrorEvent(wat) {\n  return isBuiltin(wat, 'ErrorEvent');\n}\n\n/**\n * Checks whether given value's type is DOMError\n * {@link isDOMError}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isDOMError(wat) {\n  return isBuiltin(wat, 'DOMError');\n}\n\n/**\n * Checks whether given value's type is DOMException\n * {@link isDOMException}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isDOMException(wat) {\n  return isBuiltin(wat, 'DOMException');\n}\n\n/**\n * Checks whether given value's type is a string\n * {@link isString}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isString(wat) {\n  return isBuiltin(wat, 'String');\n}\n\n/**\n * Checks whether given string is parameterized\n * {@link isParameterizedString}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isParameterizedString(wat) {\n  return (\n    typeof wat === 'object' &&\n    wat !== null &&\n    '__sentry_template_string__' in wat &&\n    '__sentry_template_values__' in wat\n  );\n}\n\n/**\n * Checks whether given value is a primitive (undefined, null, number, boolean, string, bigint, symbol)\n * {@link isPrimitive}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isPrimitive(wat) {\n  return wat === null || isParameterizedString(wat) || (typeof wat !== 'object' && typeof wat !== 'function');\n}\n\n/**\n * Checks whether given value's type is an object literal, or a class instance.\n * {@link isPlainObject}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isPlainObject(wat) {\n  return isBuiltin(wat, 'Object');\n}\n\n/**\n * Checks whether given value's type is an Event instance\n * {@link isEvent}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isEvent(wat) {\n  return typeof Event !== 'undefined' && isInstanceOf(wat, Event);\n}\n\n/**\n * Checks whether given value's type is an Element instance\n * {@link isElement}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isElement(wat) {\n  return typeof Element !== 'undefined' && isInstanceOf(wat, Element);\n}\n\n/**\n * Checks whether given value's type is an regexp\n * {@link isRegExp}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isRegExp(wat) {\n  return isBuiltin(wat, 'RegExp');\n}\n\n/**\n * Checks whether given value has a then function.\n * @param wat A value to be checked.\n */\nfunction isThenable(wat) {\n  // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access\n  return Boolean(wat && wat.then && typeof wat.then === 'function');\n}\n\n/**\n * Checks whether given value's type is a SyntheticEvent\n * {@link isSyntheticEvent}.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isSyntheticEvent(wat) {\n  return isPlainObject(wat) && 'nativeEvent' in wat && 'preventDefault' in wat && 'stopPropagation' in wat;\n}\n\n/**\n * Checks whether given value's type is an instance of provided constructor.\n * {@link isInstanceOf}.\n *\n * @param wat A value to be checked.\n * @param base A constructor to be used in a check.\n * @returns A boolean representing the result.\n */\nfunction isInstanceOf(wat, base) {\n  try {\n    return wat instanceof base;\n  } catch (_e) {\n    return false;\n  }\n}\n\n/**\n * Checks whether given value's type is a Vue ViewModel.\n *\n * @param wat A value to be checked.\n * @returns A boolean representing the result.\n */\nfunction isVueViewModel(wat) {\n  // Not using Object.prototype.toString because in Vue 3 it would read the instance's Symbol(Symbol.toStringTag) property.\n  return !!(typeof wat === 'object' && wat !== null && ((wat ).__isVue || (wat )._isVue));\n}\n\nexport { isDOMError, isDOMException, isElement, isError, isErrorEvent, isEvent, isInstanceOf, isParameterizedString, isPlainObject, isPrimitive, isRegExp, isString, isSyntheticEvent, isThenable, isVueViewModel };\n","import { isString } from './is.js';\nimport { GLOBAL_OBJ } from './worldwide.js';\n\nconst WINDOW = GLOBAL_OBJ ;\n\nconst DEFAULT_MAX_STRING_LENGTH = 80;\n\n/**\n * Given a child DOM element, returns a query-selector statement describing that\n * and its ancestors\n * e.g. [HTMLElement] => body > div > input#foo.btn[name=baz]\n * @returns generated DOM path\n */\nfunction htmlTreeAsString(\n  elem,\n  options = {},\n) {\n  if (!elem) {\n    return '<unknown>';\n  }\n\n  // try/catch both:\n  // - accessing event.target (see getsentry/raven-js#838, #768)\n  // - `htmlTreeAsString` because it's complex, and just accessing the DOM incorrectly\n  // - can throw an exception in some circumstances.\n  try {\n    let currentElem = elem ;\n    const MAX_TRAVERSE_HEIGHT = 5;\n    const out = [];\n    let height = 0;\n    let len = 0;\n    const separator = ' > ';\n    const sepLength = separator.length;\n    let nextStr;\n    const keyAttrs = Array.isArray(options) ? options : options.keyAttrs;\n    const maxStringLength = (!Array.isArray(options) && options.maxStringLength) || DEFAULT_MAX_STRING_LENGTH;\n\n    while (currentElem && height++ < MAX_TRAVERSE_HEIGHT) {\n      nextStr = _htmlElementAsString(currentElem, keyAttrs);\n      // bail out if\n      // - nextStr is the 'html' element\n      // - the length of the string that would be created exceeds maxStringLength\n      //   (ignore this limit if we are on the first iteration)\n      if (nextStr === 'html' || (height > 1 && len + out.length * sepLength + nextStr.length >= maxStringLength)) {\n        break;\n      }\n\n      out.push(nextStr);\n\n      len += nextStr.length;\n      currentElem = currentElem.parentNode;\n    }\n\n    return out.reverse().join(separator);\n  } catch (_oO) {\n    return '<unknown>';\n  }\n}\n\n/**\n * Returns a simple, query-selector representation of a DOM element\n * e.g. [HTMLElement] => input#foo.btn[name=baz]\n * @returns generated DOM path\n */\nfunction _htmlElementAsString(el, keyAttrs) {\n  const elem = el\n\n;\n\n  const out = [];\n\n  if (!elem || !elem.tagName) {\n    return '';\n  }\n\n  // @ts-expect-error WINDOW has HTMLElement\n  if (WINDOW.HTMLElement) {\n    // If using the component name annotation plugin, this value may be available on the DOM node\n    if (elem instanceof HTMLElement && elem.dataset) {\n      if (elem.dataset['sentryComponent']) {\n        return elem.dataset['sentryComponent'];\n      }\n      if (elem.dataset['sentryElement']) {\n        return elem.dataset['sentryElement'];\n      }\n    }\n  }\n\n  out.push(elem.tagName.toLowerCase());\n\n  // Pairs of attribute keys defined in `serializeAttribute` and their values on element.\n  const keyAttrPairs =\n    keyAttrs && keyAttrs.length\n      ? keyAttrs.filter(keyAttr => elem.getAttribute(keyAttr)).map(keyAttr => [keyAttr, elem.getAttribute(keyAttr)])\n      : null;\n\n  if (keyAttrPairs && keyAttrPairs.length) {\n    keyAttrPairs.forEach(keyAttrPair => {\n      out.push(`[${keyAttrPair[0]}=\"${keyAttrPair[1]}\"]`);\n    });\n  } else {\n    if (elem.id) {\n      out.push(`#${elem.id}`);\n    }\n\n    const className = elem.className;\n    if (className && isString(className)) {\n      const classes = className.split(/\\s+/);\n      for (const c of classes) {\n        out.push(`.${c}`);\n      }\n    }\n  }\n  const allowedAttrs = ['aria-label', 'type', 'name', 'title', 'alt'];\n  for (const k of allowedAttrs) {\n    const attr = elem.getAttribute(k);\n    if (attr) {\n      out.push(`[${k}=\"${attr}\"]`);\n    }\n  }\n\n  return out.join('');\n}\n\n/**\n * A safe form of location.href\n */\nfunction getLocationHref() {\n  try {\n    return WINDOW.document.location.href;\n  } catch (oO) {\n    return '';\n  }\n}\n\n/**\n * Gets a DOM element by using document.querySelector.\n *\n * This wrapper will first check for the existence of the function before\n * actually calling it so that we don't have to take care of this check,\n * every time we want to access the DOM.\n *\n * Reason: DOM/querySelector is not available in all environments.\n *\n * We have to cast to any because utils can be consumed by a variety of environments,\n * and we don't want to break TS users. If you know what element will be selected by\n * `document.querySelector`, specify it as part of the generic call. For example,\n * `const element = getDomElement<Element>('selector');`\n *\n * @param selector the selector string passed on to document.querySelector\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction getDomElement(selector) {\n  if (WINDOW.document && WINDOW.document.querySelector) {\n    return WINDOW.document.querySelector(selector) ;\n  }\n  return null;\n}\n\n/**\n * Given a DOM element, traverses up the tree until it finds the first ancestor node\n * that has the `data-sentry-component` or `data-sentry-element` attribute with `data-sentry-component` taking\n * precedence. This attribute is added at build-time by projects that have the component name annotation plugin installed.\n *\n * @returns a string representation of the component for the provided DOM element, or `null` if not found\n */\nfunction getComponentName(elem) {\n  // @ts-expect-error WINDOW has HTMLElement\n  if (!WINDOW.HTMLElement) {\n    return null;\n  }\n\n  let currentElem = elem ;\n  const MAX_TRAVERSE_HEIGHT = 5;\n  for (let i = 0; i < MAX_TRAVERSE_HEIGHT; i++) {\n    if (!currentElem) {\n      return null;\n    }\n\n    if (currentElem instanceof HTMLElement) {\n      if (currentElem.dataset['sentryComponent']) {\n        return currentElem.dataset['sentryComponent'];\n      }\n      if (currentElem.dataset['sentryElement']) {\n        return currentElem.dataset['sentryElement'];\n      }\n    }\n\n    currentElem = currentElem.parentNode;\n  }\n\n  return null;\n}\n\nexport { getComponentName, getDomElement, getLocationHref, htmlTreeAsString };\n","import { isVueViewModel, isString, isRegExp } from './is.js';\n\n/**\n * Truncates given string to the maximum characters count\n *\n * @param str An object that contains serializable values\n * @param max Maximum number of characters in truncated string (0 = unlimited)\n * @returns string Encoded\n */\nfunction truncate(str, max = 0) {\n  if (typeof str !== 'string' || max === 0) {\n    return str;\n  }\n  return str.length <= max ? str : `${str.slice(0, max)}...`;\n}\n\n/**\n * This is basically just `trim_line` from\n * https://github.com/getsentry/sentry/blob/master/src/sentry/lang/javascript/processor.py#L67\n *\n * @param str An object that contains serializable values\n * @param max Maximum number of characters in truncated string\n * @returns string Encoded\n */\nfunction snipLine(line, colno) {\n  let newLine = line;\n  const lineLength = newLine.length;\n  if (lineLength <= 150) {\n    return newLine;\n  }\n  if (colno > lineLength) {\n    // eslint-disable-next-line no-param-reassign\n    colno = lineLength;\n  }\n\n  let start = Math.max(colno - 60, 0);\n  if (start < 5) {\n    start = 0;\n  }\n\n  let end = Math.min(start + 140, lineLength);\n  if (end > lineLength - 5) {\n    end = lineLength;\n  }\n  if (end === lineLength) {\n    start = Math.max(end - 140, 0);\n  }\n\n  newLine = newLine.slice(start, end);\n  if (start > 0) {\n    newLine = `'{snip} ${newLine}`;\n  }\n  if (end < lineLength) {\n    newLine += ' {snip}';\n  }\n\n  return newLine;\n}\n\n/**\n * Join values in array\n * @param input array of values to be joined together\n * @param delimiter string to be placed in-between values\n * @returns Joined values\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction safeJoin(input, delimiter) {\n  if (!Array.isArray(input)) {\n    return '';\n  }\n\n  const output = [];\n  // eslint-disable-next-line @typescript-eslint/prefer-for-of\n  for (let i = 0; i < input.length; i++) {\n    const value = input[i];\n    try {\n      // This is a hack to fix a Vue3-specific bug that causes an infinite loop of\n      // console warnings. This happens when a Vue template is rendered with\n      // an undeclared variable, which we try to stringify, ultimately causing\n      // Vue to issue another warning which repeats indefinitely.\n      // see: https://github.com/getsentry/sentry-javascript/pull/8981\n      if (isVueViewModel(value)) {\n        output.push('[VueViewModel]');\n      } else {\n        output.push(String(value));\n      }\n    } catch (e) {\n      output.push('[value cannot be serialized]');\n    }\n  }\n\n  return output.join(delimiter);\n}\n\n/**\n * Checks if the given value matches a regex or string\n *\n * @param value The string to test\n * @param pattern Either a regex or a string against which `value` will be matched\n * @param requireExactStringMatch If true, `value` must match `pattern` exactly. If false, `value` will match\n * `pattern` if it contains `pattern`. Only applies to string-type patterns.\n */\nfunction isMatchingPattern(\n  value,\n  pattern,\n  requireExactStringMatch = false,\n) {\n  if (!isString(value)) {\n    return false;\n  }\n\n  if (isRegExp(pattern)) {\n    return pattern.test(value);\n  }\n  if (isString(pattern)) {\n    return requireExactStringMatch ? value === pattern : value.includes(pattern);\n  }\n\n  return false;\n}\n\n/**\n * Test the given string against an array of strings and regexes. By default, string matching is done on a\n * substring-inclusion basis rather than a strict equality basis\n *\n * @param testString The string to test\n * @param patterns The patterns against which to test the string\n * @param requireExactStringMatch If true, `testString` must match one of the given string patterns exactly in order to\n * count. If false, `testString` will match a string pattern if it contains that pattern.\n * @returns\n */\nfunction stringMatchesSomePattern(\n  testString,\n  patterns = [],\n  requireExactStringMatch = false,\n) {\n  return patterns.some(pattern => isMatchingPattern(testString, pattern, requireExactStringMatch));\n}\n\nexport { isMatchingPattern, safeJoin, snipLine, stringMatchesSomePattern, truncate };\n","import { htmlTreeAsString } from './browser.js';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { isError, isEvent, isInstanceOf, isElement, isPlainObject, isPrimitive } from './is.js';\nimport { logger } from './logger.js';\nimport { truncate } from './string.js';\n\n/**\n * Replace a method in an object with a wrapped version of itself.\n *\n * @param source An object that contains a method to be wrapped.\n * @param name The name of the method to be wrapped.\n * @param replacementFactory A higher-order function that takes the original version of the given method and returns a\n * wrapped version. Note: The function returned by `replacementFactory` needs to be a non-arrow function, in order to\n * preserve the correct value of `this`, and the original method must be called using `origMethod.call(this, <other\n * args>)` or `origMethod.apply(this, [<other args>])` (rather than being called directly), again to preserve `this`.\n * @returns void\n */\nfunction fill(source, name, replacementFactory) {\n  if (!(name in source)) {\n    return;\n  }\n\n  const original = source[name] ;\n  const wrapped = replacementFactory(original) ;\n\n  // Make sure it's a function first, as we need to attach an empty prototype for `defineProperties` to work\n  // otherwise it'll throw \"TypeError: Object.defineProperties called on non-object\"\n  if (typeof wrapped === 'function') {\n    markFunctionWrapped(wrapped, original);\n  }\n\n  try {\n    source[name] = wrapped;\n  } catch (e) {\n    DEBUG_BUILD && logger.log(`Failed to replace method \"${name}\" in object`, source);\n  }\n}\n\n/**\n * Defines a non-enumerable property on the given object.\n *\n * @param obj The object on which to set the property\n * @param name The name of the property to be set\n * @param value The value to which to set the property\n */\nfunction addNonEnumerableProperty(obj, name, value) {\n  try {\n    Object.defineProperty(obj, name, {\n      // enumerable: false, // the default, so we can save on bundle size by not explicitly setting it\n      value: value,\n      writable: true,\n      configurable: true,\n    });\n  } catch (o_O) {\n    DEBUG_BUILD && logger.log(`Failed to add non-enumerable property \"${name}\" to object`, obj);\n  }\n}\n\n/**\n * Remembers the original function on the wrapped function and\n * patches up the prototype.\n *\n * @param wrapped the wrapper function\n * @param original the original function that gets wrapped\n */\nfunction markFunctionWrapped(wrapped, original) {\n  try {\n    const proto = original.prototype || {};\n    wrapped.prototype = original.prototype = proto;\n    addNonEnumerableProperty(wrapped, '__sentry_original__', original);\n  } catch (o_O) {} // eslint-disable-line no-empty\n}\n\n/**\n * This extracts the original function if available.  See\n * `markFunctionWrapped` for more information.\n *\n * @param func the function to unwrap\n * @returns the unwrapped version of the function if available.\n */\n// eslint-disable-next-line @typescript-eslint/ban-types\nfunction getOriginalFunction(func) {\n  return func.__sentry_original__;\n}\n\n/**\n * Encodes given object into url-friendly format\n *\n * @param object An object that contains serializable values\n * @returns string Encoded\n *\n * @deprecated This function is deprecated and will be removed in the next major version of the SDK.\n */\nfunction urlEncode(object) {\n  return Object.keys(object)\n    .map(key => `${encodeURIComponent(key)}=${encodeURIComponent(object[key])}`)\n    .join('&');\n}\n\n/**\n * Transforms any `Error` or `Event` into a plain object with all of their enumerable properties, and some of their\n * non-enumerable properties attached.\n *\n * @param value Initial source that we have to transform in order for it to be usable by the serializer\n * @returns An Event or Error turned into an object - or the value argument itself, when value is neither an Event nor\n *  an Error.\n */\nfunction convertToPlainObject(\n  value,\n)\n\n {\n  if (isError(value)) {\n    return {\n      message: value.message,\n      name: value.name,\n      stack: value.stack,\n      ...getOwnProperties(value),\n    };\n  } else if (isEvent(value)) {\n    const newObj\n\n = {\n      type: value.type,\n      target: serializeEventTarget(value.target),\n      currentTarget: serializeEventTarget(value.currentTarget),\n      ...getOwnProperties(value),\n    };\n\n    if (typeof CustomEvent !== 'undefined' && isInstanceOf(value, CustomEvent)) {\n      newObj.detail = value.detail;\n    }\n\n    return newObj;\n  } else {\n    return value;\n  }\n}\n\n/** Creates a string representation of the target of an `Event` object */\nfunction serializeEventTarget(target) {\n  try {\n    return isElement(target) ? htmlTreeAsString(target) : Object.prototype.toString.call(target);\n  } catch (_oO) {\n    return '<unknown>';\n  }\n}\n\n/** Filters out all but an object's own properties */\nfunction getOwnProperties(obj) {\n  if (typeof obj === 'object' && obj !== null) {\n    const extractedProps = {};\n    for (const property in obj) {\n      if (Object.prototype.hasOwnProperty.call(obj, property)) {\n        extractedProps[property] = (obj )[property];\n      }\n    }\n    return extractedProps;\n  } else {\n    return {};\n  }\n}\n\n/**\n * Given any captured exception, extract its keys and create a sorted\n * and truncated list that will be used inside the event message.\n * eg. `Non-error exception captured with keys: foo, bar, baz`\n */\nfunction extractExceptionKeysForMessage(exception, maxLength = 40) {\n  const keys = Object.keys(convertToPlainObject(exception));\n  keys.sort();\n\n  const firstKey = keys[0];\n\n  if (!firstKey) {\n    return '[object has no keys]';\n  }\n\n  if (firstKey.length >= maxLength) {\n    return truncate(firstKey, maxLength);\n  }\n\n  for (let includedKeys = keys.length; includedKeys > 0; includedKeys--) {\n    const serialized = keys.slice(0, includedKeys).join(', ');\n    if (serialized.length > maxLength) {\n      continue;\n    }\n    if (includedKeys === keys.length) {\n      return serialized;\n    }\n    return truncate(serialized, maxLength);\n  }\n\n  return '';\n}\n\n/**\n * Given any object, return a new object having removed all fields whose value was `undefined`.\n * Works recursively on objects and arrays.\n *\n * Attention: This function keeps circular references in the returned object.\n */\nfunction dropUndefinedKeys(inputValue) {\n  // This map keeps track of what already visited nodes map to.\n  // Our Set - based memoBuilder doesn't work here because we want to the output object to have the same circular\n  // references as the input object.\n  const memoizationMap = new Map();\n\n  // This function just proxies `_dropUndefinedKeys` to keep the `memoBuilder` out of this function's API\n  return _dropUndefinedKeys(inputValue, memoizationMap);\n}\n\nfunction _dropUndefinedKeys(inputValue, memoizationMap) {\n  if (isPojo(inputValue)) {\n    // If this node has already been visited due to a circular reference, return the object it was mapped to in the new object\n    const memoVal = memoizationMap.get(inputValue);\n    if (memoVal !== undefined) {\n      return memoVal ;\n    }\n\n    const returnValue = {};\n    // Store the mapping of this value in case we visit it again, in case of circular data\n    memoizationMap.set(inputValue, returnValue);\n\n    for (const key of Object.getOwnPropertyNames(inputValue)) {\n      if (typeof inputValue[key] !== 'undefined') {\n        returnValue[key] = _dropUndefinedKeys(inputValue[key], memoizationMap);\n      }\n    }\n\n    return returnValue ;\n  }\n\n  if (Array.isArray(inputValue)) {\n    // If this node has already been visited due to a circular reference, return the array it was mapped to in the new object\n    const memoVal = memoizationMap.get(inputValue);\n    if (memoVal !== undefined) {\n      return memoVal ;\n    }\n\n    const returnValue = [];\n    // Store the mapping of this value in case we visit it again, in case of circular data\n    memoizationMap.set(inputValue, returnValue);\n\n    inputValue.forEach((item) => {\n      returnValue.push(_dropUndefinedKeys(item, memoizationMap));\n    });\n\n    return returnValue ;\n  }\n\n  return inputValue;\n}\n\nfunction isPojo(input) {\n  if (!isPlainObject(input)) {\n    return false;\n  }\n\n  try {\n    const name = (Object.getPrototypeOf(input) ).constructor.name;\n    return !name || name === 'Object';\n  } catch (e2) {\n    return true;\n  }\n}\n\n/**\n * Ensure that something is an object.\n *\n * Turns `undefined` and `null` into `String`s and all other primitives into instances of their respective wrapper\n * classes (String, Boolean, Number, etc.). Acts as the identity function on non-primitives.\n *\n * @param wat The subject of the objectification\n * @returns A version of `wat` which can safely be used with `Object` class methods\n */\nfunction objectify(wat) {\n  let objectified;\n  switch (true) {\n    // this will catch both undefined and null\n    case wat == undefined:\n      objectified = new String(wat);\n      break;\n\n    // Though symbols and bigints do have wrapper classes (`Symbol` and `BigInt`, respectively), for whatever reason\n    // those classes don't have constructors which can be used with the `new` keyword. We therefore need to cast each as\n    // an object in order to wrap it.\n    case typeof wat === 'symbol' || typeof wat === 'bigint':\n      objectified = Object(wat);\n      break;\n\n    // this will catch the remaining primitives: `String`, `Number`, and `Boolean`\n    case isPrimitive(wat):\n      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access\n      objectified = new (wat ).constructor(wat);\n      break;\n\n    // by process of elimination, at this point we know that `wat` must already be an object\n    default:\n      objectified = wat;\n      break;\n  }\n  return objectified;\n}\n\nexport { addNonEnumerableProperty, convertToPlainObject, dropUndefinedKeys, extractExceptionKeysForMessage, fill, getOriginalFunction, markFunctionWrapped, objectify, urlEncode };\n","import { addNonEnumerableProperty } from './object.js';\nimport { snipLine } from './string.js';\nimport { GLOBAL_OBJ } from './worldwide.js';\n\n/**\n * UUID4 generator\n *\n * @returns string Generated UUID4.\n */\nfunction uuid4() {\n  const gbl = GLOBAL_OBJ ;\n  const crypto = gbl.crypto || gbl.msCrypto;\n\n  let getRandomByte = () => Math.random() * 16;\n  try {\n    if (crypto && crypto.randomUUID) {\n      return crypto.randomUUID().replace(/-/g, '');\n    }\n    if (crypto && crypto.getRandomValues) {\n      getRandomByte = () => {\n        // crypto.getRandomValues might return undefined instead of the typed array\n        // in old Chromium versions (e.g. 23.0.1235.0 (151422))\n        // However, `typedArray` is still filled in-place.\n        // @see https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues#typedarray\n        const typedArray = new Uint8Array(1);\n        crypto.getRandomValues(typedArray);\n        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n        return typedArray[0];\n      };\n    }\n  } catch (_) {\n    // some runtimes can crash invoking crypto\n    // https://github.com/getsentry/sentry-javascript/issues/8935\n  }\n\n  // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#2117523\n  // Concatenating the following numbers as strings results in '10000000100040008000100000000000'\n  return (([1e7] ) + 1e3 + 4e3 + 8e3 + 1e11).replace(/[018]/g, c =>\n    // eslint-disable-next-line no-bitwise\n    ((c ) ^ ((getRandomByte() & 15) >> ((c ) / 4))).toString(16),\n  );\n}\n\nfunction getFirstException(event) {\n  return event.exception && event.exception.values ? event.exception.values[0] : undefined;\n}\n\n/**\n * Extracts either message or type+value from an event that can be used for user-facing logs\n * @returns event's description\n */\nfunction getEventDescription(event) {\n  const { message, event_id: eventId } = event;\n  if (message) {\n    return message;\n  }\n\n  const firstException = getFirstException(event);\n  if (firstException) {\n    if (firstException.type && firstException.value) {\n      return `${firstException.type}: ${firstException.value}`;\n    }\n    return firstException.type || firstException.value || eventId || '<unknown>';\n  }\n  return eventId || '<unknown>';\n}\n\n/**\n * Adds exception values, type and value to an synthetic Exception.\n * @param event The event to modify.\n * @param value Value of the exception.\n * @param type Type of the exception.\n * @hidden\n */\nfunction addExceptionTypeValue(event, value, type) {\n  const exception = (event.exception = event.exception || {});\n  const values = (exception.values = exception.values || []);\n  const firstException = (values[0] = values[0] || {});\n  if (!firstException.value) {\n    firstException.value = value || '';\n  }\n  if (!firstException.type) {\n    firstException.type = type || 'Error';\n  }\n}\n\n/**\n * Adds exception mechanism data to a given event. Uses defaults if the second parameter is not passed.\n *\n * @param event The event to modify.\n * @param newMechanism Mechanism data to add to the event.\n * @hidden\n */\nfunction addExceptionMechanism(event, newMechanism) {\n  const firstException = getFirstException(event);\n  if (!firstException) {\n    return;\n  }\n\n  const defaultMechanism = { type: 'generic', handled: true };\n  const currentMechanism = firstException.mechanism;\n  firstException.mechanism = { ...defaultMechanism, ...currentMechanism, ...newMechanism };\n\n  if (newMechanism && 'data' in newMechanism) {\n    const mergedData = { ...(currentMechanism && currentMechanism.data), ...newMechanism.data };\n    firstException.mechanism.data = mergedData;\n  }\n}\n\n// https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string\nconst SEMVER_REGEXP =\n  /^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(?:-((?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+([0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?$/;\n\n/**\n * Represents Semantic Versioning object\n */\n\nfunction _parseInt(input) {\n  return parseInt(input || '', 10);\n}\n\n/**\n * Parses input into a SemVer interface\n * @param input string representation of a semver version\n */\nfunction parseSemver(input) {\n  const match = input.match(SEMVER_REGEXP) || [];\n  const major = _parseInt(match[1]);\n  const minor = _parseInt(match[2]);\n  const patch = _parseInt(match[3]);\n  return {\n    buildmetadata: match[5],\n    major: isNaN(major) ? undefined : major,\n    minor: isNaN(minor) ? undefined : minor,\n    patch: isNaN(patch) ? undefined : patch,\n    prerelease: match[4],\n  };\n}\n\n/**\n * This function adds context (pre/post/line) lines to the provided frame\n *\n * @param lines string[] containing all lines\n * @param frame StackFrame that will be mutated\n * @param linesOfContext number of context lines we want to add pre/post\n */\nfunction addContextToFrame(lines, frame, linesOfContext = 5) {\n  // When there is no line number in the frame, attaching context is nonsensical and will even break grouping\n  if (frame.lineno === undefined) {\n    return;\n  }\n\n  const maxLines = lines.length;\n  const sourceLine = Math.max(Math.min(maxLines - 1, frame.lineno - 1), 0);\n\n  frame.pre_context = lines\n    .slice(Math.max(0, sourceLine - linesOfContext), sourceLine)\n    .map((line) => snipLine(line, 0));\n\n  // We guard here to ensure this is not larger than the existing number of lines\n  const lineIndex = Math.min(maxLines - 1, sourceLine);\n\n  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n  frame.context_line = snipLine(lines[lineIndex], frame.colno || 0);\n\n  frame.post_context = lines\n    .slice(Math.min(sourceLine + 1, maxLines), sourceLine + 1 + linesOfContext)\n    .map((line) => snipLine(line, 0));\n}\n\n/**\n * Checks whether or not we've already captured the given exception (note: not an identical exception - the very object\n * in question), and marks it captured if not.\n *\n * This is useful because it's possible for an error to get captured by more than one mechanism. After we intercept and\n * record an error, we rethrow it (assuming we've intercepted it before it's reached the top-level global handlers), so\n * that we don't interfere with whatever effects the error might have had were the SDK not there. At that point, because\n * the error has been rethrown, it's possible for it to bubble up to some other code we've instrumented. If it's not\n * caught after that, it will bubble all the way up to the global handlers (which of course we also instrument). This\n * function helps us ensure that even if we encounter the same error more than once, we only record it the first time we\n * see it.\n *\n * Note: It will ignore primitives (always return `false` and not mark them as seen), as properties can't be set on\n * them. {@link: Object.objectify} can be used on exceptions to convert any that are primitives into their equivalent\n * object wrapper forms so that this check will always work. However, because we need to flag the exact object which\n * will get rethrown, and because that rethrowing happens outside of the event processing pipeline, the objectification\n * must be done before the exception captured.\n *\n * @param A thrown exception to check or flag as having been seen\n * @returns `true` if the exception has already been captured, `false` if not (with the side effect of marking it seen)\n */\nfunction checkOrSetAlreadyCaught(exception) {\n  if (isAlreadyCaptured(exception)) {\n    return true;\n  }\n\n  try {\n    // set it this way rather than by assignment so that it's not ennumerable and therefore isn't recorded by the\n    // `ExtraErrorData` integration\n    addNonEnumerableProperty(exception , '__sentry_captured__', true);\n  } catch (err) {\n    // `exception` is a primitive, so we can't mark it seen\n  }\n\n  return false;\n}\n\nfunction isAlreadyCaptured(exception) {\n  try {\n    return (exception ).__sentry_captured__;\n  } catch (e) {} // eslint-disable-line no-empty\n}\n\n/**\n * Checks whether the given input is already an array, and if it isn't, wraps it in one.\n *\n * @param maybeArray Input to turn into an array, if necessary\n * @returns The input, if already an array, or an array with the input as the only element, if not\n *\n * @deprecated This function has been deprecated and will not be replaced.\n */\nfunction arrayify(maybeArray) {\n  return Array.isArray(maybeArray) ? maybeArray : [maybeArray];\n}\n\nexport { addContextToFrame, addExceptionMechanism, addExceptionTypeValue, arrayify, checkOrSetAlreadyCaught, getEventDescription, parseSemver, uuid4 };\n","import { GLOBAL_OBJ } from '@sentry/core';\n\nconst WINDOW = GLOBAL_OBJ\n\n;\n\nexport { WINDOW };\n","import { addHandler, maybeInstrument, triggerHandlers, fill, addNonEnumerableProperty, uuid4 } from '@sentry/core';\nimport { WINDOW } from '../types.js';\n\nconst DEBOUNCE_DURATION = 1000;\n\nlet debounceTimerID;\nlet lastCapturedEventType;\nlet lastCapturedEventTargetId;\n\n/**\n * Add an instrumentation handler for when a click or a keypress happens.\n *\n * Use at your own risk, this might break without changelog notice, only used internally.\n * @hidden\n */\nfunction addClickKeypressInstrumentationHandler(handler) {\n  const type = 'dom';\n  addHandler(type, handler);\n  maybeInstrument(type, instrumentDOM);\n}\n\n/** Exported for tests only. */\nfunction instrumentDOM() {\n  if (!WINDOW.document) {\n    return;\n  }\n\n  // Make it so that any click or keypress that is unhandled / bubbled up all the way to the document triggers our dom\n  // handlers. (Normally we have only one, which captures a breadcrumb for each click or keypress.) Do this before\n  // we instrument `addEventListener` so that we don't end up attaching this handler twice.\n  const triggerDOMHandler = triggerHandlers.bind(null, 'dom');\n  const globalDOMEventHandler = makeDOMEventHandler(triggerDOMHandler, true);\n  WINDOW.document.addEventListener('click', globalDOMEventHandler, false);\n  WINDOW.document.addEventListener('keypress', globalDOMEventHandler, false);\n\n  // After hooking into click and keypress events bubbled up to `document`, we also hook into user-handled\n  // clicks & keypresses, by adding an event listener of our own to any element to which they add a listener. That\n  // way, whenever one of their handlers is triggered, ours will be, too. (This is needed because their handler\n  // could potentially prevent the event from bubbling up to our global listeners. This way, our handler are still\n  // guaranteed to fire at least once.)\n  ['EventTarget', 'Node'].forEach((target) => {\n    const globalObject = WINDOW ;\n    const targetObj = globalObject[target];\n    const proto = targetObj && targetObj.prototype;\n\n    // eslint-disable-next-line no-prototype-builtins\n    if (!proto || !proto.hasOwnProperty || !proto.hasOwnProperty('addEventListener')) {\n      return;\n    }\n\n    fill(proto, 'addEventListener', function (originalAddEventListener) {\n      return function ( type, listener, options) {\n        if (type === 'click' || type == 'keypress') {\n          try {\n            const handlers = (this.__sentry_instrumentation_handlers__ =\n              this.__sentry_instrumentation_handlers__ || {});\n            const handlerForType = (handlers[type] = handlers[type] || { refCount: 0 });\n\n            if (!handlerForType.handler) {\n              const handler = makeDOMEventHandler(triggerDOMHandler);\n              handlerForType.handler = handler;\n              originalAddEventListener.call(this, type, handler, options);\n            }\n\n            handlerForType.refCount++;\n          } catch (e) {\n            // Accessing dom properties is always fragile.\n            // Also allows us to skip `addEventListeners` calls with no proper `this` context.\n          }\n        }\n\n        return originalAddEventListener.call(this, type, listener, options);\n      };\n    });\n\n    fill(\n      proto,\n      'removeEventListener',\n      function (originalRemoveEventListener) {\n        return function ( type, listener, options) {\n          if (type === 'click' || type == 'keypress') {\n            try {\n              const handlers = this.__sentry_instrumentation_handlers__ || {};\n              const handlerForType = handlers[type];\n\n              if (handlerForType) {\n                handlerForType.refCount--;\n                // If there are no longer any custom handlers of the current type on this element, we can remove ours, too.\n                if (handlerForType.refCount <= 0) {\n                  originalRemoveEventListener.call(this, type, handlerForType.handler, options);\n                  handlerForType.handler = undefined;\n                  delete handlers[type]; // eslint-disable-line @typescript-eslint/no-dynamic-delete\n                }\n\n                // If there are no longer any custom handlers of any type on this element, cleanup everything.\n                if (Object.keys(handlers).length === 0) {\n                  delete this.__sentry_instrumentation_handlers__;\n                }\n              }\n            } catch (e) {\n              // Accessing dom properties is always fragile.\n              // Also allows us to skip `addEventListeners` calls with no proper `this` context.\n            }\n          }\n\n          return originalRemoveEventListener.call(this, type, listener, options);\n        };\n      },\n    );\n  });\n}\n\n/**\n * Check whether the event is similar to the last captured one. For example, two click events on the same button.\n */\nfunction isSimilarToLastCapturedEvent(event) {\n  // If both events have different type, then user definitely performed two separate actions. e.g. click + keypress.\n  if (event.type !== lastCapturedEventType) {\n    return false;\n  }\n\n  try {\n    // If both events have the same type, it's still possible that actions were performed on different targets.\n    // e.g. 2 clicks on different buttons.\n    if (!event.target || (event.target )._sentryId !== lastCapturedEventTargetId) {\n      return false;\n    }\n  } catch (e) {\n    // just accessing `target` property can throw an exception in some rare circumstances\n    // see: https://github.com/getsentry/sentry-javascript/issues/838\n  }\n\n  // If both events have the same type _and_ same `target` (an element which triggered an event, _not necessarily_\n  // to which an event listener was attached), we treat them as the same action, as we want to capture\n  // only one breadcrumb. e.g. multiple clicks on the same button, or typing inside a user input box.\n  return true;\n}\n\n/**\n * Decide whether an event should be captured.\n * @param event event to be captured\n */\nfunction shouldSkipDOMEvent(eventType, target) {\n  // We are only interested in filtering `keypress` events for now.\n  if (eventType !== 'keypress') {\n    return false;\n  }\n\n  if (!target || !target.tagName) {\n    return true;\n  }\n\n  // Only consider keypress events on actual input elements. This will disregard keypresses targeting body\n  // e.g.tabbing through elements, hotkeys, etc.\n  if (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA' || target.isContentEditable) {\n    return false;\n  }\n\n  return true;\n}\n\n/**\n * Wraps addEventListener to capture UI breadcrumbs\n */\nfunction makeDOMEventHandler(\n  handler,\n  globalListener = false,\n) {\n  return (event) => {\n    // It's possible this handler might trigger multiple times for the same\n    // event (e.g. event propagation through node ancestors).\n    // Ignore if we've already captured that event.\n    if (!event || event['_sentryCaptured']) {\n      return;\n    }\n\n    const target = getEventTarget(event);\n\n    // We always want to skip _some_ events.\n    if (shouldSkipDOMEvent(event.type, target)) {\n      return;\n    }\n\n    // Mark event as \"seen\"\n    addNonEnumerableProperty(event, '_sentryCaptured', true);\n\n    if (target && !target._sentryId) {\n      // Add UUID to event target so we can identify if\n      addNonEnumerableProperty(target, '_sentryId', uuid4());\n    }\n\n    const name = event.type === 'keypress' ? 'input' : event.type;\n\n    // If there is no last captured event, it means that we can safely capture the new event and store it for future comparisons.\n    // If there is a last captured event, see if the new event is different enough to treat it as a unique one.\n    // If that's the case, emit the previous event and store locally the newly-captured DOM event.\n    if (!isSimilarToLastCapturedEvent(event)) {\n      const handlerData = { event, name, global: globalListener };\n      handler(handlerData);\n      lastCapturedEventType = event.type;\n      lastCapturedEventTargetId = target ? target._sentryId : undefined;\n    }\n\n    // Start a new debounce timer that will prevent us from capturing multiple events that should be grouped together.\n    clearTimeout(debounceTimerID);\n    debounceTimerID = WINDOW.setTimeout(() => {\n      lastCapturedEventTargetId = undefined;\n      lastCapturedEventType = undefined;\n    }, DEBOUNCE_DURATION);\n  };\n}\n\nfunction getEventTarget(event) {\n  try {\n    return event.target ;\n  } catch (e) {\n    // just accessing `target` property can throw an exception in some rare circumstances\n    // see: https://github.com/getsentry/sentry-javascript/issues/838\n    return null;\n  }\n}\n\nexport { addClickKeypressInstrumentationHandler, instrumentDOM };\n","import { GLOBAL_OBJ } from './worldwide.js';\n\nconst ONE_SECOND_IN_MS = 1000;\n\n/**\n * A partial definition of the [Performance Web API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Performance}\n * for accessing a high-resolution monotonic clock.\n */\n\n/**\n * Returns a timestamp in seconds since the UNIX epoch using the Date API.\n *\n * TODO(v8): Return type should be rounded.\n */\nfunction dateTimestampInSeconds() {\n  return Date.now() / ONE_SECOND_IN_MS;\n}\n\n/**\n * Returns a wrapper around the native Performance API browser implementation, or undefined for browsers that do not\n * support the API.\n *\n * Wrapping the native API works around differences in behavior from different browsers.\n */\nfunction createUnixTimestampInSecondsFunc() {\n  const { performance } = GLOBAL_OBJ ;\n  if (!performance || !performance.now) {\n    return dateTimestampInSeconds;\n  }\n\n  // Some browser and environments don't have a timeOrigin, so we fallback to\n  // using Date.now() to compute the starting time.\n  const approxStartingTimeOrigin = Date.now() - performance.now();\n  const timeOrigin = performance.timeOrigin == undefined ? approxStartingTimeOrigin : performance.timeOrigin;\n\n  // performance.now() is a monotonic clock, which means it starts at 0 when the process begins. To get the current\n  // wall clock time (actual UNIX timestamp), we need to add the starting time origin and the current time elapsed.\n  //\n  // TODO: This does not account for the case where the monotonic clock that powers performance.now() drifts from the\n  // wall clock time, which causes the returned timestamp to be inaccurate. We should investigate how to detect and\n  // correct for this.\n  // See: https://github.com/getsentry/sentry-javascript/issues/2590\n  // See: https://github.com/mdn/content/issues/4713\n  // See: https://dev.to/noamr/when-a-millisecond-is-not-a-millisecond-3h6\n  return () => {\n    return (timeOrigin + performance.now()) / ONE_SECOND_IN_MS;\n  };\n}\n\n/**\n * Returns a timestamp in seconds since the UNIX epoch using either the Performance or Date APIs, depending on the\n * availability of the Performance API.\n *\n * BUG: Note that because of how browsers implement the Performance API, the clock might stop when the computer is\n * asleep. This creates a skew between `dateTimestampInSeconds` and `timestampInSeconds`. The\n * skew can grow to arbitrary amounts like days, weeks or months.\n * See https://github.com/getsentry/sentry-javascript/issues/2590.\n */\nconst timestampInSeconds = createUnixTimestampInSecondsFunc();\n\n/**\n * Internal helper to store what is the source of browserPerformanceTimeOrigin below. For debugging only.\n *\n * @deprecated This variable will be removed in the next major version.\n */\nlet _browserPerformanceTimeOriginMode;\n\n/**\n * The number of milliseconds since the UNIX epoch. This value is only usable in a browser, and only when the\n * performance API is available.\n */\nconst browserPerformanceTimeOrigin = (() => {\n  // Unfortunately browsers may report an inaccurate time origin data, through either performance.timeOrigin or\n  // performance.timing.navigationStart, which results in poor results in performance data. We only treat time origin\n  // data as reliable if they are within a reasonable threshold of the current time.\n\n  const { performance } = GLOBAL_OBJ ;\n  if (!performance || !performance.now) {\n    // eslint-disable-next-line deprecation/deprecation\n    _browserPerformanceTimeOriginMode = 'none';\n    return undefined;\n  }\n\n  const threshold = 3600 * 1000;\n  const performanceNow = performance.now();\n  const dateNow = Date.now();\n\n  // if timeOrigin isn't available set delta to threshold so it isn't used\n  const timeOriginDelta = performance.timeOrigin\n    ? Math.abs(performance.timeOrigin + performanceNow - dateNow)\n    : threshold;\n  const timeOriginIsReliable = timeOriginDelta < threshold;\n\n  // While performance.timing.navigationStart is deprecated in favor of performance.timeOrigin, performance.timeOrigin\n  // is not as widely supported. Namely, performance.timeOrigin is undefined in Safari as of writing.\n  // Also as of writing, performance.timing is not available in Web Workers in mainstream browsers, so it is not always\n  // a valid fallback. In the absence of an initial time provided by the browser, fallback to the current time from the\n  // Date API.\n  // eslint-disable-next-line deprecation/deprecation\n  const navigationStart = performance.timing && performance.timing.navigationStart;\n  const hasNavigationStart = typeof navigationStart === 'number';\n  // if navigationStart isn't available set delta to threshold so it isn't used\n  const navigationStartDelta = hasNavigationStart ? Math.abs(navigationStart + performanceNow - dateNow) : threshold;\n  const navigationStartIsReliable = navigationStartDelta < threshold;\n\n  if (timeOriginIsReliable || navigationStartIsReliable) {\n    // Use the more reliable time origin\n    if (timeOriginDelta <= navigationStartDelta) {\n      // eslint-disable-next-line deprecation/deprecation\n      _browserPerformanceTimeOriginMode = 'timeOrigin';\n      return performance.timeOrigin;\n    } else {\n      // eslint-disable-next-line deprecation/deprecation\n      _browserPerformanceTimeOriginMode = 'navigationStart';\n      return navigationStart;\n    }\n  }\n\n  // Either both timeOrigin and navigationStart are skewed or neither is available, fallback to Date.\n  // eslint-disable-next-line deprecation/deprecation\n  _browserPerformanceTimeOriginMode = 'dateNow';\n  return dateNow;\n})();\n\nexport { _browserPerformanceTimeOriginMode, browserPerformanceTimeOrigin, dateTimestampInSeconds, timestampInSeconds };\n","import { addHandler, maybeInstrument, timestampInSeconds, isString, triggerHandlers } from '@sentry/core';\nimport { WINDOW } from '../types.js';\n\nconst SENTRY_XHR_DATA_KEY = '__sentry_xhr_v3__';\n\n/**\n * Add an instrumentation handler for when an XHR request happens.\n * The handler function is called once when the request starts and once when it ends,\n * which can be identified by checking if it has an `endTimestamp`.\n *\n * Use at your own risk, this might break without changelog notice, only used internally.\n * @hidden\n */\nfunction addXhrInstrumentationHandler(handler) {\n  const type = 'xhr';\n  addHandler(type, handler);\n  maybeInstrument(type, instrumentXHR);\n}\n\n/** Exported only for tests. */\nfunction instrumentXHR() {\n  if (!(WINDOW ).XMLHttpRequest) {\n    return;\n  }\n\n  const xhrproto = XMLHttpRequest.prototype;\n\n  // eslint-disable-next-line @typescript-eslint/unbound-method\n  xhrproto.open = new Proxy(xhrproto.open, {\n    apply(originalOpen, xhrOpenThisArg, xhrOpenArgArray) {\n      const startTimestamp = timestampInSeconds() * 1000;\n\n      // open() should always be called with two or more arguments\n      // But to be on the safe side, we actually validate this and bail out if we don't have a method & url\n      const method = isString(xhrOpenArgArray[0]) ? xhrOpenArgArray[0].toUpperCase() : undefined;\n      const url = parseUrl(xhrOpenArgArray[1]);\n\n      if (!method || !url) {\n        return originalOpen.apply(xhrOpenThisArg, xhrOpenArgArray);\n      }\n\n      xhrOpenThisArg[SENTRY_XHR_DATA_KEY] = {\n        method,\n        url,\n        request_headers: {},\n      };\n\n      // if Sentry key appears in URL, don't capture it as a request\n      if (method === 'POST' && url.match(/sentry_key/)) {\n        xhrOpenThisArg.__sentry_own_request__ = true;\n      }\n\n      const onreadystatechangeHandler = () => {\n        // For whatever reason, this is not the same instance here as from the outer method\n        const xhrInfo = xhrOpenThisArg[SENTRY_XHR_DATA_KEY];\n\n        if (!xhrInfo) {\n          return;\n        }\n\n        if (xhrOpenThisArg.readyState === 4) {\n          try {\n            // touching statusCode in some platforms throws\n            // an exception\n            xhrInfo.status_code = xhrOpenThisArg.status;\n          } catch (e) {\n            /* do nothing */\n          }\n\n          const handlerData = {\n            endTimestamp: timestampInSeconds() * 1000,\n            startTimestamp,\n            xhr: xhrOpenThisArg,\n          };\n          triggerHandlers('xhr', handlerData);\n        }\n      };\n\n      if ('onreadystatechange' in xhrOpenThisArg && typeof xhrOpenThisArg.onreadystatechange === 'function') {\n        xhrOpenThisArg.onreadystatechange = new Proxy(xhrOpenThisArg.onreadystatechange, {\n          apply(originalOnreadystatechange, onreadystatechangeThisArg, onreadystatechangeArgArray) {\n            onreadystatechangeHandler();\n            return originalOnreadystatechange.apply(onreadystatechangeThisArg, onreadystatechangeArgArray);\n          },\n        });\n      } else {\n        xhrOpenThisArg.addEventListener('readystatechange', onreadystatechangeHandler);\n      }\n\n      // Intercepting `setRequestHeader` to access the request headers of XHR instance.\n      // This will only work for user/library defined headers, not for the default/browser-assigned headers.\n      // Request cookies are also unavailable for XHR, as `Cookie` header can't be defined by `setRequestHeader`.\n      xhrOpenThisArg.setRequestHeader = new Proxy(xhrOpenThisArg.setRequestHeader, {\n        apply(\n          originalSetRequestHeader,\n          setRequestHeaderThisArg,\n          setRequestHeaderArgArray,\n        ) {\n          const [header, value] = setRequestHeaderArgArray;\n\n          const xhrInfo = setRequestHeaderThisArg[SENTRY_XHR_DATA_KEY];\n\n          if (xhrInfo && isString(header) && isString(value)) {\n            xhrInfo.request_headers[header.toLowerCase()] = value;\n          }\n\n          return originalSetRequestHeader.apply(setRequestHeaderThisArg, setRequestHeaderArgArray);\n        },\n      });\n\n      return originalOpen.apply(xhrOpenThisArg, xhrOpenArgArray);\n    },\n  });\n\n  // eslint-disable-next-line @typescript-eslint/unbound-method\n  xhrproto.send = new Proxy(xhrproto.send, {\n    apply(originalSend, sendThisArg, sendArgArray) {\n      const sentryXhrData = sendThisArg[SENTRY_XHR_DATA_KEY];\n\n      if (!sentryXhrData) {\n        return originalSend.apply(sendThisArg, sendArgArray);\n      }\n\n      if (sendArgArray[0] !== undefined) {\n        sentryXhrData.body = sendArgArray[0];\n      }\n\n      const handlerData = {\n        startTimestamp: timestampInSeconds() * 1000,\n        xhr: sendThisArg,\n      };\n      triggerHandlers('xhr', handlerData);\n\n      return originalSend.apply(sendThisArg, sendArgArray);\n    },\n  });\n}\n\nfunction parseUrl(url) {\n  if (isString(url)) {\n    return url;\n  }\n\n  try {\n    // url can be a string or URL\n    // but since URL is not available in IE11, we do not check for it,\n    // but simply assume it is an URL and return `toString()` from it (which returns the full URL)\n    // If that fails, we just return undefined\n    return (url ).toString();\n  } catch (e2) {} // eslint-disable-line no-empty\n\n  return undefined;\n}\n\nexport { SENTRY_XHR_DATA_KEY, addXhrInstrumentationHandler, instrumentXHR };\n","import { GLOBAL_OBJ } from '../worldwide.js';\n\n// Based on https://github.com/angular/angular.js/pull/13945/files\n// The MIT License\n\n\nconst WINDOW = GLOBAL_OBJ ;\n\n/**\n * Tells whether current environment supports History API\n * {@link supportsHistory}.\n *\n * @returns Answer to the given question.\n */\nfunction supportsHistory() {\n  // NOTE: in Chrome App environment, touching history.pushState, *even inside\n  //       a try/catch block*, will cause Chrome to output an error to console.error\n  // borrowed from: https://github.com/angular/angular.js/pull/13945/files\n  /* eslint-disable @typescript-eslint/no-unsafe-member-access */\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  const chromeVar = (WINDOW ).chrome;\n  const isChromePackagedApp = chromeVar && chromeVar.app && chromeVar.app.runtime;\n  /* eslint-enable @typescript-eslint/no-unsafe-member-access */\n  const hasHistoryApi = 'history' in WINDOW && !!WINDOW.history.pushState && !!WINDOW.history.replaceState;\n\n  return !isChromePackagedApp && hasHistoryApi;\n}\n\nexport { supportsHistory };\n","import { addHandler, maybeInstrument, supportsHistory, triggerHandlers, fill } from '@sentry/core';\nimport { WINDOW } from '../types.js';\n\nlet lastHref;\n\n/**\n * Add an instrumentation handler for when a fetch request happens.\n * The handler function is called once when the request starts and once when it ends,\n * which can be identified by checking if it has an `endTimestamp`.\n *\n * Use at your own risk, this might break without changelog notice, only used internally.\n * @hidden\n */\nfunction addHistoryInstrumentationHandler(handler) {\n  const type = 'history';\n  addHandler(type, handler);\n  maybeInstrument(type, instrumentHistory);\n}\n\nfunction instrumentHistory() {\n  if (!supportsHistory()) {\n    return;\n  }\n\n  const oldOnPopState = WINDOW.onpopstate;\n  WINDOW.onpopstate = function ( ...args) {\n    const to = WINDOW.location.href;\n    // keep track of the current URL state, as we always receive only the updated state\n    const from = lastHref;\n    lastHref = to;\n    const handlerData = { from, to };\n    triggerHandlers('history', handlerData);\n    if (oldOnPopState) {\n      // Apparently this can throw in Firefox when incorrectly implemented plugin is installed.\n      // https://github.com/getsentry/sentry-javascript/issues/3344\n      // https://github.com/bugsnag/bugsnag-js/issues/469\n      try {\n        return oldOnPopState.apply(this, args);\n      } catch (_oO) {\n        // no-empty\n      }\n    }\n  };\n\n  function historyReplacementFunction(originalHistoryFunction) {\n    return function ( ...args) {\n      const url = args.length > 2 ? args[2] : undefined;\n      if (url) {\n        // coerce to string (this is what pushState does)\n        const from = lastHref;\n        const to = String(url);\n        // keep track of the current URL state, as we always receive only the updated state\n        lastHref = to;\n        const handlerData = { from, to };\n        triggerHandlers('history', handlerData);\n      }\n      return originalHistoryFunction.apply(this, args);\n    };\n  }\n\n  fill(WINDOW.history, 'pushState', historyReplacementFunction);\n  fill(WINDOW.history, 'replaceState', historyReplacementFunction);\n}\n\nexport { addHistoryInstrumentationHandler };\n","import { CONSOLE_LEVELS, originalConsoleMethods } from '../logger.js';\nimport { fill } from '../object.js';\nimport { GLOBAL_OBJ } from '../worldwide.js';\nimport { addHandler, maybeInstrument, triggerHandlers } from './handlers.js';\n\n/**\n * Add an instrumentation handler for when a console.xxx method is called.\n *\n * Use at your own risk, this might break without changelog notice, only used internally.\n * @hidden\n */\nfunction addConsoleInstrumentationHandler(handler) {\n  const type = 'console';\n  addHandler(type, handler);\n  maybeInstrument(type, instrumentConsole);\n}\n\nfunction instrumentConsole() {\n  if (!('console' in GLOBAL_OBJ)) {\n    return;\n  }\n\n  CONSOLE_LEVELS.forEach(function (level) {\n    if (!(level in GLOBAL_OBJ.console)) {\n      return;\n    }\n\n    fill(GLOBAL_OBJ.console, level, function (originalConsoleMethod) {\n      originalConsoleMethods[level] = originalConsoleMethod;\n\n      return function (...args) {\n        const handlerData = { args, level };\n        triggerHandlers('console', handlerData);\n\n        const log = originalConsoleMethods[level];\n        log && log.apply(GLOBAL_OBJ.console, args);\n      };\n    });\n  });\n}\n\nexport { addConsoleInstrumentationHandler };\n","import { DEBUG_BUILD } from './debug-build.js';\nimport { logger } from './logger.js';\nimport { GLOBAL_OBJ } from './worldwide.js';\n\nconst WINDOW = GLOBAL_OBJ ;\n\n/**\n * Tells whether current environment supports ErrorEvent objects\n * {@link supportsErrorEvent}.\n *\n * @returns Answer to the given question.\n */\nfunction supportsErrorEvent() {\n  try {\n    new ErrorEvent('');\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\n/**\n * Tells whether current environment supports DOMError objects\n * {@link supportsDOMError}.\n *\n * @returns Answer to the given question.\n */\nfunction supportsDOMError() {\n  try {\n    // Chrome: VM89:1 Uncaught TypeError: Failed to construct 'DOMError':\n    // 1 argument required, but only 0 present.\n    // @ts-expect-error It really needs 1 argument, not 0.\n    new DOMError('');\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\n/**\n * Tells whether current environment supports DOMException objects\n * {@link supportsDOMException}.\n *\n * @returns Answer to the given question.\n */\nfunction supportsDOMException() {\n  try {\n    new DOMException('');\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\n/**\n * Tells whether current environment supports Fetch API\n * {@link supportsFetch}.\n *\n * @returns Answer to the given question.\n */\nfunction supportsFetch() {\n  if (!('fetch' in WINDOW)) {\n    return false;\n  }\n\n  try {\n    new Headers();\n    new Request('http://www.example.com');\n    new Response();\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\n/**\n * isNative checks if the given function is a native implementation\n */\n// eslint-disable-next-line @typescript-eslint/ban-types\nfunction isNativeFunction(func) {\n  return func && /^function\\s+\\w+\\(\\)\\s+\\{\\s+\\[native code\\]\\s+\\}$/.test(func.toString());\n}\n\n/**\n * Tells whether current environment supports Fetch API natively\n * {@link supportsNativeFetch}.\n *\n * @returns true if `window.fetch` is natively implemented, false otherwise\n */\nfunction supportsNativeFetch() {\n  if (typeof EdgeRuntime === 'string') {\n    return true;\n  }\n\n  if (!supportsFetch()) {\n    return false;\n  }\n\n  // Fast path to avoid DOM I/O\n  // eslint-disable-next-line @typescript-eslint/unbound-method\n  if (isNativeFunction(WINDOW.fetch)) {\n    return true;\n  }\n\n  // window.fetch is implemented, but is polyfilled or already wrapped (e.g: by a chrome extension)\n  // so create a \"pure\" iframe to see if that has native fetch\n  let result = false;\n  const doc = WINDOW.document;\n  // eslint-disable-next-line deprecation/deprecation\n  if (doc && typeof (doc.createElement ) === 'function') {\n    try {\n      const sandbox = doc.createElement('iframe');\n      sandbox.hidden = true;\n      doc.head.appendChild(sandbox);\n      if (sandbox.contentWindow && sandbox.contentWindow.fetch) {\n        // eslint-disable-next-line @typescript-eslint/unbound-method\n        result = isNativeFunction(sandbox.contentWindow.fetch);\n      }\n      doc.head.removeChild(sandbox);\n    } catch (err) {\n      DEBUG_BUILD &&\n        logger.warn('Could not create sandbox iframe for pure fetch check, bailing to window.fetch: ', err);\n    }\n  }\n\n  return result;\n}\n\n/**\n * Tells whether current environment supports ReportingObserver API\n * {@link supportsReportingObserver}.\n *\n * @returns Answer to the given question.\n */\nfunction supportsReportingObserver() {\n  return 'ReportingObserver' in WINDOW;\n}\n\n/**\n * Tells whether current environment supports Referrer Policy API\n * {@link supportsReferrerPolicy}.\n *\n * @returns Answer to the given question.\n */\nfunction supportsReferrerPolicy() {\n  // Despite all stars in the sky saying that Edge supports old draft syntax, aka 'never', 'always', 'origin' and 'default'\n  // (see https://caniuse.com/#feat=referrer-policy),\n  // it doesn't. And it throws an exception instead of ignoring this parameter...\n  // REF: https://github.com/getsentry/raven-js/issues/1233\n\n  if (!supportsFetch()) {\n    return false;\n  }\n\n  try {\n    new Request('_', {\n      referrerPolicy: 'origin' ,\n    });\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\nexport { isNativeFunction, supportsDOMError, supportsDOMException, supportsErrorEvent, supportsFetch, supportsNativeFetch, supportsReferrerPolicy, supportsReportingObserver };\n","import { isError } from '../is.js';\nimport { fill, addNonEnumerableProperty } from '../object.js';\nimport { supportsNativeFetch } from '../supports.js';\nimport { timestampInSeconds } from '../time.js';\nimport { GLOBAL_OBJ } from '../worldwide.js';\nimport { addHandler, maybeInstrument, triggerHandlers } from './handlers.js';\n\n/**\n * Add an instrumentation handler for when a fetch request happens.\n * The handler function is called once when the request starts and once when it ends,\n * which can be identified by checking if it has an `endTimestamp`.\n *\n * Use at your own risk, this might break without changelog notice, only used internally.\n * @hidden\n */\nfunction addFetchInstrumentationHandler(\n  handler,\n  skipNativeFetchCheck,\n) {\n  const type = 'fetch';\n  addHandler(type, handler);\n  maybeInstrument(type, () => instrumentFetch(undefined, skipNativeFetchCheck));\n}\n\n/**\n * Add an instrumentation handler for long-lived fetch requests, like consuming server-sent events (SSE) via fetch.\n * The handler will resolve the request body and emit the actual `endTimestamp`, so that the\n * span can be updated accordingly.\n *\n * Only used internally\n * @hidden\n */\nfunction addFetchEndInstrumentationHandler(handler) {\n  const type = 'fetch-body-resolved';\n  addHandler(type, handler);\n  maybeInstrument(type, () => instrumentFetch(streamHandler));\n}\n\nfunction instrumentFetch(onFetchResolved, skipNativeFetchCheck = false) {\n  if (skipNativeFetchCheck && !supportsNativeFetch()) {\n    return;\n  }\n\n  fill(GLOBAL_OBJ, 'fetch', function (originalFetch) {\n    return function (...args) {\n      const { method, url } = parseFetchArgs(args);\n      const handlerData = {\n        args,\n        fetchData: {\n          method,\n          url,\n        },\n        startTimestamp: timestampInSeconds() * 1000,\n      };\n\n      // if there is no callback, fetch is instrumented directly\n      if (!onFetchResolved) {\n        triggerHandlers('fetch', {\n          ...handlerData,\n        });\n      }\n\n      // We capture the stack right here and not in the Promise error callback because Safari (and probably other\n      // browsers too) will wipe the stack trace up to this point, only leaving us with this file which is useless.\n\n      // NOTE: If you are a Sentry user, and you are seeing this stack frame,\n      //       it means the error, that was caused by your fetch call did not\n      //       have a stack trace, so the SDK backfilled the stack trace so\n      //       you can see which fetch call failed.\n      const virtualStackTrace = new Error().stack;\n\n      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access\n      return originalFetch.apply(GLOBAL_OBJ, args).then(\n        async (response) => {\n          if (onFetchResolved) {\n            onFetchResolved(response);\n          } else {\n            triggerHandlers('fetch', {\n              ...handlerData,\n              endTimestamp: timestampInSeconds() * 1000,\n              response,\n            });\n          }\n\n          return response;\n        },\n        (error) => {\n          triggerHandlers('fetch', {\n            ...handlerData,\n            endTimestamp: timestampInSeconds() * 1000,\n            error,\n          });\n\n          if (isError(error) && error.stack === undefined) {\n            // NOTE: If you are a Sentry user, and you are seeing this stack frame,\n            //       it means the error, that was caused by your fetch call did not\n            //       have a stack trace, so the SDK backfilled the stack trace so\n            //       you can see which fetch call failed.\n            error.stack = virtualStackTrace;\n            addNonEnumerableProperty(error, 'framesToPop', 1);\n          }\n\n          // NOTE: If you are a Sentry user, and you are seeing this stack frame,\n          //       it means the sentry.javascript SDK caught an error invoking your application code.\n          //       This is expected behavior and NOT indicative of a bug with sentry.javascript.\n          throw error;\n        },\n      );\n    };\n  });\n}\n\nasync function resolveResponse(res, onFinishedResolving) {\n  if (res && res.body) {\n    const body = res.body;\n    const responseReader = body.getReader();\n\n    // Define a maximum duration after which we just cancel\n    const maxFetchDurationTimeout = setTimeout(\n      () => {\n        body.cancel().then(null, () => {\n          // noop\n        });\n      },\n      90 * 1000, // 90s\n    );\n\n    let readingActive = true;\n    while (readingActive) {\n      let chunkTimeout;\n      try {\n        // abort reading if read op takes more than 5s\n        chunkTimeout = setTimeout(() => {\n          body.cancel().then(null, () => {\n            // noop on error\n          });\n        }, 5000);\n\n        // This .read() call will reject/throw when we abort due to timeouts through `body.cancel()`\n        const { done } = await responseReader.read();\n\n        clearTimeout(chunkTimeout);\n\n        if (done) {\n          onFinishedResolving();\n          readingActive = false;\n        }\n      } catch (error) {\n        readingActive = false;\n      } finally {\n        clearTimeout(chunkTimeout);\n      }\n    }\n\n    clearTimeout(maxFetchDurationTimeout);\n\n    responseReader.releaseLock();\n    body.cancel().then(null, () => {\n      // noop on error\n    });\n  }\n}\n\nfunction streamHandler(response) {\n  // clone response for awaiting stream\n  let clonedResponseForResolving;\n  try {\n    clonedResponseForResolving = response.clone();\n  } catch (e) {\n    return;\n  }\n\n  // eslint-disable-next-line @typescript-eslint/no-floating-promises\n  resolveResponse(clonedResponseForResolving, () => {\n    triggerHandlers('fetch-body-resolved', {\n      endTimestamp: timestampInSeconds() * 1000,\n      response,\n    });\n  });\n}\n\nfunction hasProp(obj, prop) {\n  return !!obj && typeof obj === 'object' && !!(obj )[prop];\n}\n\nfunction getUrlFromResource(resource) {\n  if (typeof resource === 'string') {\n    return resource;\n  }\n\n  if (!resource) {\n    return '';\n  }\n\n  if (hasProp(resource, 'url')) {\n    return resource.url;\n  }\n\n  if (resource.toString) {\n    return resource.toString();\n  }\n\n  return '';\n}\n\n/**\n * Parses the fetch arguments to find the used Http method and the url of the request.\n * Exported for tests only.\n */\nfunction parseFetchArgs(fetchArgs) {\n  if (fetchArgs.length === 0) {\n    return { method: 'GET', url: '' };\n  }\n\n  if (fetchArgs.length === 2) {\n    const [url, options] = fetchArgs ;\n\n    return {\n      url: getUrlFromResource(url),\n      method: hasProp(options, 'method') ? String(options.method).toUpperCase() : 'GET',\n    };\n  }\n\n  const arg = fetchArgs[0];\n  return {\n    url: getUrlFromResource(arg ),\n    method: hasProp(arg, 'method') ? String(arg.method).toUpperCase() : 'GET',\n  };\n}\n\nexport { addFetchEndInstrumentationHandler, addFetchInstrumentationHandler, parseFetchArgs };\n","/**\n * This serves as a build time flag that will be true by default, but false in non-debug builds or if users replace `__SENTRY_DEBUG__` in their generated code.\n *\n * ATTENTION: This constant must never cross package boundaries (i.e. be exported) to guarantee that it can be used for tree shaking.\n */\nconst DEBUG_BUILD = (typeof __SENTRY_DEBUG__ === 'undefined' || __SENTRY_DEBUG__);\n\nexport { DEBUG_BUILD };\n","import { getClient } from './currentScopes.js';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { logger } from './utils-hoist/logger.js';\n\nconst installedIntegrations = [];\n\n/** Map of integrations assigned to a client */\n\n/**\n * Remove duplicates from the given array, preferring the last instance of any duplicate. Not guaranteed to\n * preserve the order of integrations in the array.\n *\n * @private\n */\nfunction filterDuplicates(integrations) {\n  const integrationsByName = {};\n\n  integrations.forEach((currentInstance) => {\n    const { name } = currentInstance;\n\n    const existingInstance = integrationsByName[name];\n\n    // We want integrations later in the array to overwrite earlier ones of the same type, except that we never want a\n    // default instance to overwrite an existing user instance\n    if (existingInstance && !existingInstance.isDefaultInstance && currentInstance.isDefaultInstance) {\n      return;\n    }\n\n    integrationsByName[name] = currentInstance;\n  });\n\n  return Object.values(integrationsByName);\n}\n\n/** Gets integrations to install */\nfunction getIntegrationsToSetup(options) {\n  const defaultIntegrations = options.defaultIntegrations || [];\n  const userIntegrations = options.integrations;\n\n  // We flag default instances, so that later we can tell them apart from any user-created instances of the same class\n  defaultIntegrations.forEach((integration) => {\n    integration.isDefaultInstance = true;\n  });\n\n  let integrations;\n\n  if (Array.isArray(userIntegrations)) {\n    integrations = [...defaultIntegrations, ...userIntegrations];\n  } else if (typeof userIntegrations === 'function') {\n    const resolvedUserIntegrations = userIntegrations(defaultIntegrations);\n    integrations = Array.isArray(resolvedUserIntegrations) ? resolvedUserIntegrations : [resolvedUserIntegrations];\n  } else {\n    integrations = defaultIntegrations;\n  }\n\n  const finalIntegrations = filterDuplicates(integrations);\n\n  // The `Debug` integration prints copies of the `event` and `hint` which will be passed to `beforeSend` or\n  // `beforeSendTransaction`. It therefore has to run after all other integrations, so that the changes of all event\n  // processors will be reflected in the printed values. For lack of a more elegant way to guarantee that, we therefore\n  // locate it and, assuming it exists, pop it out of its current spot and shove it onto the end of the array.\n  const debugIndex = finalIntegrations.findIndex(integration => integration.name === 'Debug');\n  if (debugIndex > -1) {\n    const [debugInstance] = finalIntegrations.splice(debugIndex, 1) ;\n    finalIntegrations.push(debugInstance);\n  }\n\n  return finalIntegrations;\n}\n\n/**\n * Given a list of integration instances this installs them all. When `withDefaults` is set to `true` then all default\n * integrations are added unless they were already provided before.\n * @param integrations array of integration instances\n * @param withDefault should enable default integrations\n */\nfunction setupIntegrations(client, integrations) {\n  const integrationIndex = {};\n\n  integrations.forEach(integration => {\n    // guard against empty provided integrations\n    if (integration) {\n      setupIntegration(client, integration, integrationIndex);\n    }\n  });\n\n  return integrationIndex;\n}\n\n/**\n * Execute the `afterAllSetup` hooks of the given integrations.\n */\nfunction afterSetupIntegrations(client, integrations) {\n  for (const integration of integrations) {\n    // guard against empty provided integrations\n    if (integration && integration.afterAllSetup) {\n      integration.afterAllSetup(client);\n    }\n  }\n}\n\n/** Setup a single integration.  */\nfunction setupIntegration(client, integration, integrationIndex) {\n  if (integrationIndex[integration.name]) {\n    DEBUG_BUILD && logger.log(`Integration skipped because it was already installed: ${integration.name}`);\n    return;\n  }\n  integrationIndex[integration.name] = integration;\n\n  // `setupOnce` is only called the first time\n  if (installedIntegrations.indexOf(integration.name) === -1 && typeof integration.setupOnce === 'function') {\n    integration.setupOnce();\n    installedIntegrations.push(integration.name);\n  }\n\n  // `setup` is run for each client\n  if (integration.setup && typeof integration.setup === 'function') {\n    integration.setup(client);\n  }\n\n  if (typeof integration.preprocessEvent === 'function') {\n    const callback = integration.preprocessEvent.bind(integration) ;\n    client.on('preprocessEvent', (event, hint) => callback(event, hint, client));\n  }\n\n  if (typeof integration.processEvent === 'function') {\n    const callback = integration.processEvent.bind(integration) ;\n\n    const processor = Object.assign((event, hint) => callback(event, hint, client), {\n      id: integration.name,\n    });\n\n    client.addEventProcessor(processor);\n  }\n\n  DEBUG_BUILD && logger.log(`Integration installed: ${integration.name}`);\n}\n\n/** Add an integration to the current scope's client. */\nfunction addIntegration(integration) {\n  const client = getClient();\n\n  if (!client) {\n    DEBUG_BUILD && logger.warn(`Cannot add integration \"${integration.name}\" because no SDK Client is available.`);\n    return;\n  }\n\n  client.addIntegration(integration);\n}\n\n/**\n * Define an integration function that can be used to create an integration instance.\n * Note that this by design hides the implementation details of the integration, as they are considered internal.\n */\nfunction defineIntegration(fn) {\n  return fn;\n}\n\nexport { addIntegration, afterSetupIntegrations, defineIntegration, getIntegrationsToSetup, installedIntegrations, setupIntegration, setupIntegrations };\n","import { SDK_VERSION } from './utils-hoist/version.js';\nimport { GLOBAL_OBJ } from './utils-hoist/worldwide.js';\n\n/**\n * An object that contains globally accessible properties and maintains a scope stack.\n * @hidden\n */\n\n/**\n * Returns the global shim registry.\n *\n * FIXME: This function is problematic, because despite always returning a valid Carrier,\n * it has an optional `__SENTRY__` property, which then in turn requires us to always perform an unnecessary check\n * at the call-site. We always access the carrier through this function, so we can guarantee that `__SENTRY__` is there.\n **/\nfunction getMainCarrier() {\n  // This ensures a Sentry carrier exists\n  getSentryCarrier(GLOBAL_OBJ);\n  return GLOBAL_OBJ;\n}\n\n/** Will either get the existing sentry carrier, or create a new one. */\nfunction getSentryCarrier(carrier) {\n  const __SENTRY__ = (carrier.__SENTRY__ = carrier.__SENTRY__ || {});\n\n  // For now: First SDK that sets the .version property wins\n  __SENTRY__.version = __SENTRY__.version || SDK_VERSION;\n\n  // Intentionally populating and returning the version of \"this\" SDK instance\n  // rather than what's set in .version so that \"this\" SDK always gets its carrier\n  return (__SENTRY__[SDK_VERSION] = __SENTRY__[SDK_VERSION] || {});\n}\n\nexport { getMainCarrier, getSentryCarrier };\n","import './utils-hoist/version.js';\nimport './utils-hoist/debug-build.js';\nimport './utils-hoist/logger.js';\nimport { dropUndefinedKeys } from './utils-hoist/object.js';\nimport { timestampInSeconds } from './utils-hoist/time.js';\nimport { uuid4 } from './utils-hoist/misc.js';\nimport './utils-hoist/syncpromise.js';\n\n/**\n * Creates a new `Session` object by setting certain default parameters. If optional @param context\n * is passed, the passed properties are applied to the session object.\n *\n * @param context (optional) additional properties to be applied to the returned session object\n *\n * @returns a new `Session` object\n */\nfunction makeSession(context) {\n  // Both timestamp and started are in seconds since the UNIX epoch.\n  const startingTime = timestampInSeconds();\n\n  const session = {\n    sid: uuid4(),\n    init: true,\n    timestamp: startingTime,\n    started: startingTime,\n    duration: 0,\n    status: 'ok',\n    errors: 0,\n    ignoreDuration: false,\n    toJSON: () => sessionToJSON(session),\n  };\n\n  if (context) {\n    updateSession(session, context);\n  }\n\n  return session;\n}\n\n/**\n * Updates a session object with the properties passed in the context.\n *\n * Note that this function mutates the passed object and returns void.\n * (Had to do this instead of returning a new and updated session because closing and sending a session\n * makes an update to the session after it was passed to the sending logic.\n * @see BaseClient.captureSession )\n *\n * @param session the `Session` to update\n * @param context the `SessionContext` holding the properties that should be updated in @param session\n */\n// eslint-disable-next-line complexity\nfunction updateSession(session, context = {}) {\n  if (context.user) {\n    if (!session.ipAddress && context.user.ip_address) {\n      session.ipAddress = context.user.ip_address;\n    }\n\n    if (!session.did && !context.did) {\n      session.did = context.user.id || context.user.email || context.user.username;\n    }\n  }\n\n  session.timestamp = context.timestamp || timestampInSeconds();\n\n  if (context.abnormal_mechanism) {\n    session.abnormal_mechanism = context.abnormal_mechanism;\n  }\n\n  if (context.ignoreDuration) {\n    session.ignoreDuration = context.ignoreDuration;\n  }\n  if (context.sid) {\n    // Good enough uuid validation. — Kamil\n    session.sid = context.sid.length === 32 ? context.sid : uuid4();\n  }\n  if (context.init !== undefined) {\n    session.init = context.init;\n  }\n  if (!session.did && context.did) {\n    session.did = `${context.did}`;\n  }\n  if (typeof context.started === 'number') {\n    session.started = context.started;\n  }\n  if (session.ignoreDuration) {\n    session.duration = undefined;\n  } else if (typeof context.duration === 'number') {\n    session.duration = context.duration;\n  } else {\n    const duration = session.timestamp - session.started;\n    session.duration = duration >= 0 ? duration : 0;\n  }\n  if (context.release) {\n    session.release = context.release;\n  }\n  if (context.environment) {\n    session.environment = context.environment;\n  }\n  if (!session.ipAddress && context.ipAddress) {\n    session.ipAddress = context.ipAddress;\n  }\n  if (!session.userAgent && context.userAgent) {\n    session.userAgent = context.userAgent;\n  }\n  if (typeof context.errors === 'number') {\n    session.errors = context.errors;\n  }\n  if (context.status) {\n    session.status = context.status;\n  }\n}\n\n/**\n * Closes a session by setting its status and updating the session object with it.\n * Internally calls `updateSession` to update the passed session object.\n *\n * Note that this function mutates the passed session (@see updateSession for explanation).\n *\n * @param session the `Session` object to be closed\n * @param status the `SessionStatus` with which the session was closed. If you don't pass a status,\n *               this function will keep the previously set status, unless it was `'ok'` in which case\n *               it is changed to `'exited'`.\n */\nfunction closeSession(session, status) {\n  let context = {};\n  if (status) {\n    context = { status };\n  } else if (session.status === 'ok') {\n    context = { status: 'exited' };\n  }\n\n  updateSession(session, context);\n}\n\n/**\n * Serializes a passed session object to a JSON object with a slightly different structure.\n * This is necessary because the Sentry backend requires a slightly different schema of a session\n * than the one the JS SDKs use internally.\n *\n * @param session the session to be converted\n *\n * @returns a JSON object of the passed session\n */\nfunction sessionToJSON(session) {\n  return dropUndefinedKeys({\n    sid: `${session.sid}`,\n    init: session.init,\n    // Make sure that sec is converted to ms for date constructor\n    started: new Date(session.started * 1000).toISOString(),\n    timestamp: new Date(session.timestamp * 1000).toISOString(),\n    status: session.status,\n    errors: session.errors,\n    did: typeof session.did === 'number' || typeof session.did === 'string' ? `${session.did}` : undefined,\n    duration: session.duration,\n    abnormal_mechanism: session.abnormal_mechanism,\n    attrs: {\n      release: session.release,\n      environment: session.environment,\n      ip_address: session.ipAddress,\n      user_agent: session.userAgent,\n    },\n  });\n}\n\nexport { closeSession, makeSession, updateSession };\n","import { uuid4 } from './misc.js';\n\n/**\n * Returns a new minimal propagation context.\n *\n * @deprecated Use `generateTraceId` and `generateSpanId` instead.\n */\nfunction generatePropagationContext() {\n  return {\n    traceId: generateTraceId(),\n    spanId: generateSpanId(),\n  };\n}\n\n/**\n * Generate a random, valid trace ID.\n */\nfunction generateTraceId() {\n  return uuid4();\n}\n\n/**\n * Generate a random, valid span ID.\n */\nfunction generateSpanId() {\n  return uuid4().substring(16);\n}\n\nexport { generatePropagationContext, generateSpanId, generateTraceId };\n","/**\n * Shallow merge two objects.\n * Does not mutate the passed in objects.\n * Undefined/empty values in the merge object will overwrite existing values.\n *\n * By default, this merges 2 levels deep.\n */\nfunction merge(initialObj, mergeObj, levels = 2) {\n  // If the merge value is not an object, or we have no merge levels left,\n  // we just set the value to the merge value\n  if (!mergeObj || typeof mergeObj !== 'object' || levels <= 0) {\n    return mergeObj;\n  }\n\n  // If the merge object is an empty object, and the initial object is not undefined, we return the initial object\n  if (initialObj && mergeObj && Object.keys(mergeObj).length === 0) {\n    return initialObj;\n  }\n\n  // Clone object\n  const output = { ...initialObj };\n\n  // Merge values into output, resursively\n  for (const key in mergeObj) {\n    if (Object.prototype.hasOwnProperty.call(mergeObj, key)) {\n      output[key] = merge(output[key], mergeObj[key], levels - 1);\n    }\n  }\n\n  return output;\n}\n\nexport { merge };\n","import { addNonEnumerableProperty } from '../utils-hoist/object.js';\n\nconst SCOPE_SPAN_FIELD = '_sentrySpan';\n\n/**\n * Set the active span for a given scope.\n * NOTE: This should NOT be used directly, but is only used internally by the trace methods.\n */\nfunction _setSpanForScope(scope, span) {\n  if (span) {\n    addNonEnumerableProperty(scope , SCOPE_SPAN_FIELD, span);\n  } else {\n    // eslint-disable-next-line @typescript-eslint/no-dynamic-delete\n    delete (scope )[SCOPE_SPAN_FIELD];\n  }\n}\n\n/**\n * Get the active span for a given scope.\n * NOTE: This should NOT be used directly, but is only used internally by the trace methods.\n */\nfunction _getSpanForScope(scope) {\n  return scope[SCOPE_SPAN_FIELD];\n}\n\nexport { _getSpanForScope, _setSpanForScope };\n","import { updateSession } from './session.js';\nimport { isPlainObject } from './utils-hoist/is.js';\nimport { logger } from './utils-hoist/logger.js';\nimport { uuid4 } from './utils-hoist/misc.js';\nimport { generateTraceId, generateSpanId } from './utils-hoist/propagationContext.js';\nimport { dateTimestampInSeconds } from './utils-hoist/time.js';\nimport { merge } from './utils/merge.js';\nimport { _setSpanForScope, _getSpanForScope } from './utils/spanOnScope.js';\n\n/**\n * Default value for maximum number of breadcrumbs added to an event.\n */\nconst DEFAULT_MAX_BREADCRUMBS = 100;\n\n/**\n * Holds additional event information.\n */\nclass ScopeClass  {\n  /** Flag if notifying is happening. */\n\n  /** Callback for client to receive scope changes. */\n\n  /** Callback list that will be called during event processing. */\n\n  /** Array of breadcrumbs. */\n\n  /** User */\n\n  /** Tags */\n\n  /** Extra */\n\n  /** Contexts */\n\n  /** Attachments */\n\n  /** Propagation Context for distributed tracing */\n\n  /**\n   * A place to stash data which is needed at some point in the SDK's event processing pipeline but which shouldn't get\n   * sent to Sentry\n   */\n\n  /** Fingerprint */\n\n  /** Severity */\n\n  /**\n   * Transaction Name\n   *\n   * IMPORTANT: The transaction name on the scope has nothing to do with root spans/transaction objects.\n   * It's purpose is to assign a transaction to the scope that's added to non-transaction events.\n   */\n\n  /** Session */\n\n  /** Request Mode Session Status */\n\n  /** The client on this scope */\n\n  /** Contains the last event id of a captured event.  */\n\n  // NOTE: Any field which gets added here should get added not only to the constructor but also to the `clone` method.\n\n   constructor() {\n    this._notifyingListeners = false;\n    this._scopeListeners = [];\n    this._eventProcessors = [];\n    this._breadcrumbs = [];\n    this._attachments = [];\n    this._user = {};\n    this._tags = {};\n    this._extra = {};\n    this._contexts = {};\n    this._sdkProcessingMetadata = {};\n    this._propagationContext = {\n      traceId: generateTraceId(),\n      spanId: generateSpanId(),\n    };\n  }\n\n  /**\n   * @inheritDoc\n   */\n   clone() {\n    const newScope = new ScopeClass();\n    newScope._breadcrumbs = [...this._breadcrumbs];\n    newScope._tags = { ...this._tags };\n    newScope._extra = { ...this._extra };\n    newScope._contexts = { ...this._contexts };\n    newScope._user = this._user;\n    newScope._level = this._level;\n    newScope._session = this._session;\n    newScope._transactionName = this._transactionName;\n    newScope._fingerprint = this._fingerprint;\n    newScope._eventProcessors = [...this._eventProcessors];\n    newScope._requestSession = this._requestSession;\n    newScope._attachments = [...this._attachments];\n    newScope._sdkProcessingMetadata = { ...this._sdkProcessingMetadata };\n    newScope._propagationContext = { ...this._propagationContext };\n    newScope._client = this._client;\n    newScope._lastEventId = this._lastEventId;\n\n    _setSpanForScope(newScope, _getSpanForScope(this));\n\n    return newScope;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setClient(client) {\n    this._client = client;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setLastEventId(lastEventId) {\n    this._lastEventId = lastEventId;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getClient() {\n    return this._client ;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   lastEventId() {\n    return this._lastEventId;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   addScopeListener(callback) {\n    this._scopeListeners.push(callback);\n  }\n\n  /**\n   * @inheritDoc\n   */\n   addEventProcessor(callback) {\n    this._eventProcessors.push(callback);\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setUser(user) {\n    // If null is passed we want to unset everything, but still define keys,\n    // so that later down in the pipeline any existing values are cleared.\n    this._user = user || {\n      email: undefined,\n      id: undefined,\n      ip_address: undefined,\n      username: undefined,\n    };\n\n    if (this._session) {\n      updateSession(this._session, { user });\n    }\n\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getUser() {\n    return this._user;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getRequestSession() {\n    return this._requestSession;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setRequestSession(requestSession) {\n    this._requestSession = requestSession;\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setTags(tags) {\n    this._tags = {\n      ...this._tags,\n      ...tags,\n    };\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setTag(key, value) {\n    this._tags = { ...this._tags, [key]: value };\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setExtras(extras) {\n    this._extra = {\n      ...this._extra,\n      ...extras,\n    };\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setExtra(key, extra) {\n    this._extra = { ...this._extra, [key]: extra };\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setFingerprint(fingerprint) {\n    this._fingerprint = fingerprint;\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setLevel(level) {\n    this._level = level;\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setTransactionName(name) {\n    this._transactionName = name;\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setContext(key, context) {\n    if (context === null) {\n      // eslint-disable-next-line @typescript-eslint/no-dynamic-delete\n      delete this._contexts[key];\n    } else {\n      this._contexts[key] = context;\n    }\n\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setSession(session) {\n    if (!session) {\n      delete this._session;\n    } else {\n      this._session = session;\n    }\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getSession() {\n    return this._session;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   update(captureContext) {\n    if (!captureContext) {\n      return this;\n    }\n\n    const scopeToMerge = typeof captureContext === 'function' ? captureContext(this) : captureContext;\n\n    const [scopeInstance, requestSession] =\n      scopeToMerge instanceof Scope\n        ? [scopeToMerge.getScopeData(), scopeToMerge.getRequestSession()]\n        : isPlainObject(scopeToMerge)\n          ? [captureContext , (captureContext ).requestSession]\n          : [];\n\n    const { tags, extra, user, contexts, level, fingerprint = [], propagationContext } = scopeInstance || {};\n\n    this._tags = { ...this._tags, ...tags };\n    this._extra = { ...this._extra, ...extra };\n    this._contexts = { ...this._contexts, ...contexts };\n\n    if (user && Object.keys(user).length) {\n      this._user = user;\n    }\n\n    if (level) {\n      this._level = level;\n    }\n\n    if (fingerprint.length) {\n      this._fingerprint = fingerprint;\n    }\n\n    if (propagationContext) {\n      this._propagationContext = propagationContext;\n    }\n\n    if (requestSession) {\n      this._requestSession = requestSession;\n    }\n\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   clear() {\n    // client is not cleared here on purpose!\n    this._breadcrumbs = [];\n    this._tags = {};\n    this._extra = {};\n    this._user = {};\n    this._contexts = {};\n    this._level = undefined;\n    this._transactionName = undefined;\n    this._fingerprint = undefined;\n    this._requestSession = undefined;\n    this._session = undefined;\n    _setSpanForScope(this, undefined);\n    this._attachments = [];\n    this.setPropagationContext({ traceId: generateTraceId() });\n\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   addBreadcrumb(breadcrumb, maxBreadcrumbs) {\n    const maxCrumbs = typeof maxBreadcrumbs === 'number' ? maxBreadcrumbs : DEFAULT_MAX_BREADCRUMBS;\n\n    // No data has been changed, so don't notify scope listeners\n    if (maxCrumbs <= 0) {\n      return this;\n    }\n\n    const mergedBreadcrumb = {\n      timestamp: dateTimestampInSeconds(),\n      ...breadcrumb,\n    };\n\n    const breadcrumbs = this._breadcrumbs;\n    breadcrumbs.push(mergedBreadcrumb);\n    this._breadcrumbs = breadcrumbs.length > maxCrumbs ? breadcrumbs.slice(-maxCrumbs) : breadcrumbs;\n\n    this._notifyScopeListeners();\n\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getLastBreadcrumb() {\n    return this._breadcrumbs[this._breadcrumbs.length - 1];\n  }\n\n  /**\n   * @inheritDoc\n   */\n   clearBreadcrumbs() {\n    this._breadcrumbs = [];\n    this._notifyScopeListeners();\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   addAttachment(attachment) {\n    this._attachments.push(attachment);\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   clearAttachments() {\n    this._attachments = [];\n    return this;\n  }\n\n  /** @inheritDoc */\n   getScopeData() {\n    return {\n      breadcrumbs: this._breadcrumbs,\n      attachments: this._attachments,\n      contexts: this._contexts,\n      tags: this._tags,\n      extra: this._extra,\n      user: this._user,\n      level: this._level,\n      fingerprint: this._fingerprint || [],\n      eventProcessors: this._eventProcessors,\n      propagationContext: this._propagationContext,\n      sdkProcessingMetadata: this._sdkProcessingMetadata,\n      transactionName: this._transactionName,\n      span: _getSpanForScope(this),\n    };\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setSDKProcessingMetadata(newData) {\n    this._sdkProcessingMetadata = merge(this._sdkProcessingMetadata, newData, 2);\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   setPropagationContext(\n    context,\n  ) {\n    this._propagationContext = {\n      // eslint-disable-next-line deprecation/deprecation\n      spanId: generateSpanId(),\n      ...context,\n    };\n    return this;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getPropagationContext() {\n    return this._propagationContext;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   captureException(exception, hint) {\n    const eventId = hint && hint.event_id ? hint.event_id : uuid4();\n\n    if (!this._client) {\n      logger.warn('No client configured on scope - will not capture exception!');\n      return eventId;\n    }\n\n    const syntheticException = new Error('Sentry syntheticException');\n\n    this._client.captureException(\n      exception,\n      {\n        originalException: exception,\n        syntheticException,\n        ...hint,\n        event_id: eventId,\n      },\n      this,\n    );\n\n    return eventId;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   captureMessage(message, level, hint) {\n    const eventId = hint && hint.event_id ? hint.event_id : uuid4();\n\n    if (!this._client) {\n      logger.warn('No client configured on scope - will not capture message!');\n      return eventId;\n    }\n\n    const syntheticException = new Error(message);\n\n    this._client.captureMessage(\n      message,\n      level,\n      {\n        originalException: message,\n        syntheticException,\n        ...hint,\n        event_id: eventId,\n      },\n      this,\n    );\n\n    return eventId;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   captureEvent(event, hint) {\n    const eventId = hint && hint.event_id ? hint.event_id : uuid4();\n\n    if (!this._client) {\n      logger.warn('No client configured on scope - will not capture event!');\n      return eventId;\n    }\n\n    this._client.captureEvent(event, { ...hint, event_id: eventId }, this);\n\n    return eventId;\n  }\n\n  /**\n   * This will be called on every set call.\n   */\n   _notifyScopeListeners() {\n    // We need this check for this._notifyingListeners to be able to work on scope during updates\n    // If this check is not here we'll produce endless recursion when something is done with the scope\n    // during the callback.\n    if (!this._notifyingListeners) {\n      this._notifyingListeners = true;\n      this._scopeListeners.forEach(callback => {\n        callback(this);\n      });\n      this._notifyingListeners = false;\n    }\n  }\n}\n\n/**\n * Holds additional event information.\n */\nconst Scope = ScopeClass;\n\n/**\n * Holds additional event information.\n */\n\nexport { Scope };\n","import { getDefaultCurrentScope, getDefaultIsolationScope } from '../defaultScopes.js';\nimport { Scope } from '../scope.js';\nimport { isThenable } from '../utils-hoist/is.js';\nimport { getMainCarrier, getSentryCarrier } from '../carrier.js';\n\n/**\n * This is an object that holds a stack of scopes.\n */\nclass AsyncContextStack {\n\n   constructor(scope, isolationScope) {\n    let assignedScope;\n    if (!scope) {\n      assignedScope = new Scope();\n    } else {\n      assignedScope = scope;\n    }\n\n    let assignedIsolationScope;\n    if (!isolationScope) {\n      assignedIsolationScope = new Scope();\n    } else {\n      assignedIsolationScope = isolationScope;\n    }\n\n    // scope stack for domains or the process\n    this._stack = [{ scope: assignedScope }];\n    this._isolationScope = assignedIsolationScope;\n  }\n\n  /**\n   * Fork a scope for the stack.\n   */\n   withScope(callback) {\n    const scope = this._pushScope();\n\n    let maybePromiseResult;\n    try {\n      maybePromiseResult = callback(scope);\n    } catch (e) {\n      this._popScope();\n      throw e;\n    }\n\n    if (isThenable(maybePromiseResult)) {\n      // @ts-expect-error - isThenable returns the wrong type\n      return maybePromiseResult.then(\n        res => {\n          this._popScope();\n          return res;\n        },\n        e => {\n          this._popScope();\n          throw e;\n        },\n      );\n    }\n\n    this._popScope();\n    return maybePromiseResult;\n  }\n\n  /**\n   * Get the client of the stack.\n   */\n   getClient() {\n    return this.getStackTop().client ;\n  }\n\n  /**\n   * Returns the scope of the top stack.\n   */\n   getScope() {\n    return this.getStackTop().scope;\n  }\n\n  /**\n   * Get the isolation scope for the stack.\n   */\n   getIsolationScope() {\n    return this._isolationScope;\n  }\n\n  /**\n   * Returns the topmost scope layer in the order domain > local > process.\n   */\n   getStackTop() {\n    return this._stack[this._stack.length - 1] ;\n  }\n\n  /**\n   * Push a scope to the stack.\n   */\n   _pushScope() {\n    // We want to clone the content of prev scope\n    const scope = this.getScope().clone();\n    this._stack.push({\n      client: this.getClient(),\n      scope,\n    });\n    return scope;\n  }\n\n  /**\n   * Pop a scope from the stack.\n   */\n   _popScope() {\n    if (this._stack.length <= 1) return false;\n    return !!this._stack.pop();\n  }\n}\n\n/**\n * Get the global async context stack.\n * This will be removed during the v8 cycle and is only here to make migration easier.\n */\nfunction getAsyncContextStack() {\n  const registry = getMainCarrier();\n  const sentry = getSentryCarrier(registry);\n\n  return (sentry.stack = sentry.stack || new AsyncContextStack(getDefaultCurrentScope(), getDefaultIsolationScope()));\n}\n\nfunction withScope(callback) {\n  return getAsyncContextStack().withScope(callback);\n}\n\nfunction withSetScope(scope, callback) {\n  const stack = getAsyncContextStack() ;\n  return stack.withScope(() => {\n    stack.getStackTop().scope = scope;\n    return callback(scope);\n  });\n}\n\nfunction withIsolationScope(callback) {\n  return getAsyncContextStack().withScope(() => {\n    return callback(getAsyncContextStack().getIsolationScope());\n  });\n}\n\n/**\n * Get the stack-based async context strategy.\n */\nfunction getStackAsyncContextStrategy() {\n  return {\n    withIsolationScope,\n    withScope,\n    withSetScope,\n    withSetIsolationScope: (_isolationScope, callback) => {\n      return withIsolationScope(callback);\n    },\n    getCurrentScope: () => getAsyncContextStack().getScope(),\n    getIsolationScope: () => getAsyncContextStack().getIsolationScope(),\n  };\n}\n\nexport { AsyncContextStack, getStackAsyncContextStrategy };\n","import { Scope } from './scope.js';\nimport { getGlobalSingleton } from './utils-hoist/worldwide.js';\n\n/** Get the default current scope. */\nfunction getDefaultCurrentScope() {\n  return getGlobalSingleton('defaultCurrentScope', () => new Scope());\n}\n\n/** Get the default isolation scope. */\nfunction getDefaultIsolationScope() {\n  return getGlobalSingleton('defaultIsolationScope', () => new Scope());\n}\n\nexport { getDefaultCurrentScope, getDefaultIsolationScope };\n","import { getMainCarrier, getSentryCarrier } from '../carrier.js';\nimport { getStackAsyncContextStrategy } from './stackStrategy.js';\n\n/**\n * @private Private API with no semver guarantees!\n *\n * Sets the global async context strategy\n */\nfunction setAsyncContextStrategy(strategy) {\n  // Get main carrier (global for every environment)\n  const registry = getMainCarrier();\n  const sentry = getSentryCarrier(registry);\n  sentry.acs = strategy;\n}\n\n/**\n * Get the current async context strategy.\n * If none has been setup, the default will be used.\n */\nfunction getAsyncContextStrategy(carrier) {\n  const sentry = getSentryCarrier(carrier);\n\n  if (sentry.acs) {\n    return sentry.acs;\n  }\n\n  // Otherwise, use the default one (stack)\n  return getStackAsyncContextStrategy();\n}\n\nexport { getAsyncContextStrategy, setAsyncContextStrategy };\n","import { getAsyncContextStrategy } from './asyncContext/index.js';\nimport { getMainCarrier } from './carrier.js';\nimport { Scope } from './scope.js';\nimport { dropUndefinedKeys } from './utils-hoist/object.js';\nimport { getGlobalSingleton } from './utils-hoist/worldwide.js';\n\n/**\n * Get the currently active scope.\n */\nfunction getCurrentScope() {\n  const carrier = getMainCarrier();\n  const acs = getAsyncContextStrategy(carrier);\n  return acs.getCurrentScope();\n}\n\n/**\n * Get the currently active isolation scope.\n * The isolation scope is active for the current execution context.\n */\nfunction getIsolationScope() {\n  const carrier = getMainCarrier();\n  const acs = getAsyncContextStrategy(carrier);\n  return acs.getIsolationScope();\n}\n\n/**\n * Get the global scope.\n * This scope is applied to _all_ events.\n */\nfunction getGlobalScope() {\n  return getGlobalSingleton('globalScope', () => new Scope());\n}\n\n/**\n * Creates a new scope with and executes the given operation within.\n * The scope is automatically removed once the operation\n * finishes or throws.\n */\n\n/**\n * Either creates a new active scope, or sets the given scope as active scope in the given callback.\n */\nfunction withScope(\n  ...rest\n) {\n  const carrier = getMainCarrier();\n  const acs = getAsyncContextStrategy(carrier);\n\n  // If a scope is defined, we want to make this the active scope instead of the default one\n  if (rest.length === 2) {\n    const [scope, callback] = rest;\n\n    if (!scope) {\n      return acs.withScope(callback);\n    }\n\n    return acs.withSetScope(scope, callback);\n  }\n\n  return acs.withScope(rest[0]);\n}\n\n/**\n * Attempts to fork the current isolation scope and the current scope based on the current async context strategy. If no\n * async context strategy is set, the isolation scope and the current scope will not be forked (this is currently the\n * case, for example, in the browser).\n *\n * Usage of this function in environments without async context strategy is discouraged and may lead to unexpected behaviour.\n *\n * This function is intended for Sentry SDK and SDK integration development. It is not recommended to be used in \"normal\"\n * applications directly because it comes with pitfalls. Use at your own risk!\n */\n\n/**\n * Either creates a new active isolation scope, or sets the given isolation scope as active scope in the given callback.\n */\nfunction withIsolationScope(\n  ...rest\n\n) {\n  const carrier = getMainCarrier();\n  const acs = getAsyncContextStrategy(carrier);\n\n  // If a scope is defined, we want to make this the active scope instead of the default one\n  if (rest.length === 2) {\n    const [isolationScope, callback] = rest;\n\n    if (!isolationScope) {\n      return acs.withIsolationScope(callback);\n    }\n\n    return acs.withSetIsolationScope(isolationScope, callback);\n  }\n\n  return acs.withIsolationScope(rest[0]);\n}\n\n/**\n * Get the currently active client.\n */\nfunction getClient() {\n  return getCurrentScope().getClient();\n}\n\n/**\n * Get a trace context for the given scope.\n */\nfunction getTraceContextFromScope(scope) {\n  const propagationContext = scope.getPropagationContext();\n\n  // TODO(v9): Use generateSpanId() instead of spanId\n  // eslint-disable-next-line deprecation/deprecation\n  const { traceId, spanId, parentSpanId } = propagationContext;\n\n  const traceContext = dropUndefinedKeys({\n    trace_id: traceId,\n    span_id: spanId,\n    parent_span_id: parentSpanId,\n  });\n\n  return traceContext;\n}\n\nexport { getClient, getCurrentScope, getGlobalScope, getIsolationScope, getTraceContextFromScope, withIsolationScope, withScope };\n","import { getClient, getIsolationScope } from './currentScopes.js';\nimport { consoleSandbox } from './utils-hoist/logger.js';\nimport { dateTimestampInSeconds } from './utils-hoist/time.js';\n\n/**\n * Default maximum number of breadcrumbs added to an event. Can be overwritten\n * with {@link Options.maxBreadcrumbs}.\n */\nconst DEFAULT_BREADCRUMBS = 100;\n\n/**\n * Records a new breadcrumb which will be attached to future events.\n *\n * Breadcrumbs will be added to subsequent events to provide more context on\n * user's actions prior to an error or crash.\n */\nfunction addBreadcrumb(breadcrumb, hint) {\n  const client = getClient();\n  const isolationScope = getIsolationScope();\n\n  if (!client) return;\n\n  const { beforeBreadcrumb = null, maxBreadcrumbs = DEFAULT_BREADCRUMBS } = client.getOptions();\n\n  if (maxBreadcrumbs <= 0) return;\n\n  const timestamp = dateTimestampInSeconds();\n  const mergedBreadcrumb = { timestamp, ...breadcrumb };\n  const finalBreadcrumb = beforeBreadcrumb\n    ? (consoleSandbox(() => beforeBreadcrumb(mergedBreadcrumb, hint)) )\n    : mergedBreadcrumb;\n\n  if (finalBreadcrumb === null) return;\n\n  if (client.emit) {\n    client.emit('beforeAddBreadcrumb', finalBreadcrumb, hint);\n  }\n\n  isolationScope.addBreadcrumb(finalBreadcrumb, maxBreadcrumbs);\n}\n\nexport { addBreadcrumb };\n","/**\n * @deprecated This variable has been deprecated and will be removed in the next major version.\n */\nconst validSeverityLevels = ['fatal', 'error', 'warning', 'log', 'info', 'debug'];\n\n/**\n * Converts a string-based level into a `SeverityLevel`, normalizing it along the way.\n *\n * @param level String representation of desired `SeverityLevel`.\n * @returns The `SeverityLevel` corresponding to the given string, or 'log' if the string isn't a valid level.\n */\nfunction severityLevelFromString(level) {\n  return (\n    level === 'warn' ? 'warning' : ['fatal', 'error', 'warning', 'log', 'info', 'debug'].includes(level) ? level : 'log'\n  ) ;\n}\n\nexport { severityLevelFromString, validSeverityLevels };\n","/**\n * Determine a breadcrumb's log level (only `warning` or `error`) based on an HTTP status code.\n */\nfunction getBreadcrumbLogLevelFromHttpStatusCode(statusCode) {\n  // NOTE: undefined defaults to 'info' in Sentry\n  if (statusCode === undefined) {\n    return undefined;\n  } else if (statusCode >= 400 && statusCode < 500) {\n    return 'warning';\n  } else if (statusCode >= 500) {\n    return 'error';\n  } else {\n    return undefined;\n  }\n}\n\nexport { getBreadcrumbLogLevelFromHttpStatusCode };\n","/**\n * Parses string form of URL into an object\n * // borrowed from https://tools.ietf.org/html/rfc3986#appendix-B\n * // intentionally using regex and not <a/> href parsing trick because React Native and other\n * // environments where DOM might not be available\n * @returns parsed URL object\n */\nfunction parseUrl(url) {\n  if (!url) {\n    return {};\n  }\n\n  const match = url.match(/^(([^:/?#]+):)?(\\/\\/([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?$/);\n\n  if (!match) {\n    return {};\n  }\n\n  // coerce to undefined values to empty string so we don't get 'undefined'\n  const query = match[6] || '';\n  const fragment = match[8] || '';\n  return {\n    host: match[4],\n    path: match[5],\n    protocol: match[2],\n    search: query,\n    hash: fragment,\n    relative: match[5] + query + fragment, // everything minus origin\n  };\n}\n\n/**\n * Strip the query string and fragment off of a given URL or path (if present)\n *\n * @param urlPath Full URL or path, including possible query string and/or fragment\n * @returns URL or path without query string or fragment\n */\nfunction stripUrlQueryAndFragment(urlPath) {\n  return (urlPath.split(/[?#]/, 1) )[0];\n}\n\n/**\n * Returns number of URL segments of a passed string URL.\n *\n * @deprecated This function will be removed in the next major version.\n */\n// TODO(v9): Hoist this function into the places where we use it. (as it stands only react router v6 instrumentation)\nfunction getNumberOfUrlSegments(url) {\n  // split at '/' or at '\\/' to split regex urls correctly\n  return url.split(/\\\\?\\//).filter(s => s.length > 0 && s !== ',').length;\n}\n\n/**\n * Takes a URL object and returns a sanitized string which is safe to use as span name\n * see: https://develop.sentry.dev/sdk/data-handling/#structuring-data\n */\nfunction getSanitizedUrlString(url) {\n  const { protocol, host, path } = url;\n\n  const filteredHost =\n    (host &&\n      host\n        // Always filter out authority\n        .replace(/^.*@/, '[filtered]:[filtered]@')\n        // Don't show standard :80 (http) and :443 (https) ports to reduce the noise\n        // TODO: Use new URL global if it exists\n        .replace(/(:80)$/, '')\n        .replace(/(:443)$/, '')) ||\n    '';\n\n  return `${protocol ? `${protocol}://` : ''}${filteredHost}${path}`;\n}\n\nexport { getNumberOfUrlSegments, getSanitizedUrlString, parseUrl, stripUrlQueryAndFragment };\n","/**\n * This serves as a build time flag that will be true by default, but false in non-debug builds or if users replace `__SENTRY_DEBUG__` in their generated code.\n *\n * ATTENTION: This constant must never cross package boundaries (i.e. be exported) to guarantee that it can be used for tree shaking.\n */\nconst DEBUG_BUILD = (typeof __SENTRY_DEBUG__ === 'undefined' || __SENTRY_DEBUG__);\n\nexport { DEBUG_BUILD };\n","const DEFAULT_ENVIRONMENT = 'production';\n\nexport { DEFAULT_ENVIRONMENT };\n","import { isThenable } from './is.js';\n\n/* eslint-disable @typescript-eslint/explicit-function-return-type */\n/* eslint-disable @typescript-eslint/no-explicit-any */\n\n/** SyncPromise internal states */\nvar States; (function (States) {\n  /** Pending */\n  const PENDING = 0; States[States[\"PENDING\"] = PENDING] = \"PENDING\";\n  /** Resolved / OK */\n  const RESOLVED = 1; States[States[\"RESOLVED\"] = RESOLVED] = \"RESOLVED\";\n  /** Rejected / Error */\n  const REJECTED = 2; States[States[\"REJECTED\"] = REJECTED] = \"REJECTED\";\n})(States || (States = {}));\n\n// Overloads so we can call resolvedSyncPromise without arguments and generic argument\n\n/**\n * Creates a resolved sync promise.\n *\n * @param value the value to resolve the promise with\n * @returns the resolved sync promise\n */\nfunction resolvedSyncPromise(value) {\n  return new SyncPromise(resolve => {\n    resolve(value);\n  });\n}\n\n/**\n * Creates a rejected sync promise.\n *\n * @param value the value to reject the promise with\n * @returns the rejected sync promise\n */\nfunction rejectedSyncPromise(reason) {\n  return new SyncPromise((_, reject) => {\n    reject(reason);\n  });\n}\n\n/**\n * Thenable class that behaves like a Promise and follows it's interface\n * but is not async internally\n */\nclass SyncPromise {\n\n   constructor(\n    executor,\n  ) {SyncPromise.prototype.__init.call(this);SyncPromise.prototype.__init2.call(this);SyncPromise.prototype.__init3.call(this);SyncPromise.prototype.__init4.call(this);\n    this._state = States.PENDING;\n    this._handlers = [];\n\n    try {\n      executor(this._resolve, this._reject);\n    } catch (e) {\n      this._reject(e);\n    }\n  }\n\n  /** JSDoc */\n   then(\n    onfulfilled,\n    onrejected,\n  ) {\n    return new SyncPromise((resolve, reject) => {\n      this._handlers.push([\n        false,\n        result => {\n          if (!onfulfilled) {\n            // TODO: ¯\\_(ツ)_/¯\n            // TODO: FIXME\n            resolve(result );\n          } else {\n            try {\n              resolve(onfulfilled(result));\n            } catch (e) {\n              reject(e);\n            }\n          }\n        },\n        reason => {\n          if (!onrejected) {\n            reject(reason);\n          } else {\n            try {\n              resolve(onrejected(reason));\n            } catch (e) {\n              reject(e);\n            }\n          }\n        },\n      ]);\n      this._executeHandlers();\n    });\n  }\n\n  /** JSDoc */\n   catch(\n    onrejected,\n  ) {\n    return this.then(val => val, onrejected);\n  }\n\n  /** JSDoc */\n   finally(onfinally) {\n    return new SyncPromise((resolve, reject) => {\n      let val;\n      let isRejected;\n\n      return this.then(\n        value => {\n          isRejected = false;\n          val = value;\n          if (onfinally) {\n            onfinally();\n          }\n        },\n        reason => {\n          isRejected = true;\n          val = reason;\n          if (onfinally) {\n            onfinally();\n          }\n        },\n      ).then(() => {\n        if (isRejected) {\n          reject(val);\n          return;\n        }\n\n        resolve(val );\n      });\n    });\n  }\n\n  /** JSDoc */\n    __init() {this._resolve = (value) => {\n    this._setResult(States.RESOLVED, value);\n  };}\n\n  /** JSDoc */\n    __init2() {this._reject = (reason) => {\n    this._setResult(States.REJECTED, reason);\n  };}\n\n  /** JSDoc */\n    __init3() {this._setResult = (state, value) => {\n    if (this._state !== States.PENDING) {\n      return;\n    }\n\n    if (isThenable(value)) {\n      void (value ).then(this._resolve, this._reject);\n      return;\n    }\n\n    this._state = state;\n    this._value = value;\n\n    this._executeHandlers();\n  };}\n\n  /** JSDoc */\n    __init4() {this._executeHandlers = () => {\n    if (this._state === States.PENDING) {\n      return;\n    }\n\n    const cachedHandlers = this._handlers.slice();\n    this._handlers = [];\n\n    cachedHandlers.forEach(handler => {\n      if (handler[0]) {\n        return;\n      }\n\n      if (this._state === States.RESOLVED) {\n        handler[1](this._value );\n      }\n\n      if (this._state === States.REJECTED) {\n        handler[2](this._value);\n      }\n\n      handler[0] = true;\n    });\n  };}\n}\n\nexport { SyncPromise, rejectedSyncPromise, resolvedSyncPromise };\n","import { DEBUG_BUILD } from './debug-build.js';\nimport { isThenable } from './utils-hoist/is.js';\nimport { logger } from './utils-hoist/logger.js';\nimport { SyncPromise } from './utils-hoist/syncpromise.js';\n\n/**\n * Process an array of event processors, returning the processed event (or `null` if the event was dropped).\n */\nfunction notifyEventProcessors(\n  processors,\n  event,\n  hint,\n  index = 0,\n) {\n  return new SyncPromise((resolve, reject) => {\n    const processor = processors[index];\n    if (event === null || typeof processor !== 'function') {\n      resolve(event);\n    } else {\n      const result = processor({ ...event }, hint) ;\n\n      DEBUG_BUILD && processor.id && result === null && logger.log(`Event processor \"${processor.id}\" dropped event`);\n\n      if (isThenable(result)) {\n        void result\n          .then(final => notifyEventProcessors(processors, final, hint, index + 1).then(resolve))\n          .then(null, reject);\n      } else {\n        void notifyEventProcessors(processors, result, hint, index + 1)\n          .then(resolve)\n          .then(null, reject);\n      }\n    }\n  });\n}\n\nexport { notifyEventProcessors };\n","import { GLOBAL_OBJ } from './worldwide.js';\n\nlet parsedStackResults;\nlet lastKeysCount;\nlet cachedFilenameDebugIds;\n\n/**\n * Returns a map of filenames to debug identifiers.\n */\nfunction getFilenameToDebugIdMap(stackParser) {\n  const debugIdMap = GLOBAL_OBJ._sentryDebugIds;\n  if (!debugIdMap) {\n    return {};\n  }\n\n  const debugIdKeys = Object.keys(debugIdMap);\n\n  // If the count of registered globals hasn't changed since the last call, we\n  // can just return the cached result.\n  if (cachedFilenameDebugIds && debugIdKeys.length === lastKeysCount) {\n    return cachedFilenameDebugIds;\n  }\n\n  lastKeysCount = debugIdKeys.length;\n\n  // Build a map of filename -> debug_id.\n  cachedFilenameDebugIds = debugIdKeys.reduce((acc, stackKey) => {\n    if (!parsedStackResults) {\n      parsedStackResults = {};\n    }\n\n    const result = parsedStackResults[stackKey];\n\n    if (result) {\n      acc[result[0]] = result[1];\n    } else {\n      const parsedStack = stackParser(stackKey);\n\n      for (let i = parsedStack.length - 1; i >= 0; i--) {\n        const stackFrame = parsedStack[i];\n        const filename = stackFrame && stackFrame.filename;\n        const debugId = debugIdMap[stackKey];\n\n        if (filename && debugId) {\n          acc[filename] = debugId;\n          parsedStackResults[stackKey] = [filename, debugId];\n          break;\n        }\n      }\n    }\n\n    return acc;\n  }, {});\n\n  return cachedFilenameDebugIds;\n}\n\n/**\n * Returns a list of debug images for the given resources.\n */\nfunction getDebugImagesForResources(\n  stackParser,\n  resource_paths,\n) {\n  const filenameDebugIdMap = getFilenameToDebugIdMap(stackParser);\n\n  if (!filenameDebugIdMap) {\n    return [];\n  }\n\n  const images = [];\n  for (const path of resource_paths) {\n    if (path && filenameDebugIdMap[path]) {\n      images.push({\n        type: 'sourcemap',\n        code_file: path,\n        debug_id: filenameDebugIdMap[path] ,\n      });\n    }\n  }\n\n  return images;\n}\n\nexport { getDebugImagesForResources, getFilenameToDebugIdMap };\n","import { isVueViewModel, isSyntheticEvent } from './is.js';\nimport { memoBuilder } from './memo.js';\nimport { convertToPlainObject } from './object.js';\nimport { getFunctionName } from './stacktrace.js';\n\n/**\n * Recursively normalizes the given object.\n *\n * - Creates a copy to prevent original input mutation\n * - Skips non-enumerable properties\n * - When stringifying, calls `toJSON` if implemented\n * - Removes circular references\n * - Translates non-serializable values (`undefined`/`NaN`/functions) to serializable format\n * - Translates known global objects/classes to a string representations\n * - Takes care of `Error` object serialization\n * - Optionally limits depth of final output\n * - Optionally limits number of properties/elements included in any single object/array\n *\n * @param input The object to be normalized.\n * @param depth The max depth to which to normalize the object. (Anything deeper stringified whole.)\n * @param maxProperties The max number of elements or properties to be included in any single array or\n * object in the normalized output.\n * @returns A normalized version of the object, or `\"**non-serializable**\"` if any errors are thrown during normalization.\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction normalize(input, depth = 100, maxProperties = +Infinity) {\n  try {\n    // since we're at the outermost level, we don't provide a key\n    return visit('', input, depth, maxProperties);\n  } catch (err) {\n    return { ERROR: `**non-serializable** (${err})` };\n  }\n}\n\n/** JSDoc */\nfunction normalizeToSize(\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  object,\n  // Default Node.js REPL depth\n  depth = 3,\n  // 100kB, as 200kB is max payload size, so half sounds reasonable\n  maxSize = 100 * 1024,\n) {\n  const normalized = normalize(object, depth);\n\n  if (jsonSize(normalized) > maxSize) {\n    return normalizeToSize(object, depth - 1, maxSize);\n  }\n\n  return normalized ;\n}\n\n/**\n * Visits a node to perform normalization on it\n *\n * @param key The key corresponding to the given node\n * @param value The node to be visited\n * @param depth Optional number indicating the maximum recursion depth\n * @param maxProperties Optional maximum number of properties/elements included in any single object/array\n * @param memo Optional Memo class handling decycling\n */\nfunction visit(\n  key,\n  value,\n  depth = +Infinity,\n  maxProperties = +Infinity,\n  // eslint-disable-next-line deprecation/deprecation\n  memo = memoBuilder(),\n) {\n  const [memoize, unmemoize] = memo;\n\n  // Get the simple cases out of the way first\n  if (\n    value == null || // this matches null and undefined -> eqeq not eqeqeq\n    ['boolean', 'string'].includes(typeof value) ||\n    (typeof value === 'number' && Number.isFinite(value))\n  ) {\n    return value ;\n  }\n\n  const stringified = stringifyValue(key, value);\n\n  // Anything we could potentially dig into more (objects or arrays) will have come back as `\"[object XXXX]\"`.\n  // Everything else will have already been serialized, so if we don't see that pattern, we're done.\n  if (!stringified.startsWith('[object ')) {\n    return stringified;\n  }\n\n  // From here on, we can assert that `value` is either an object or an array.\n\n  // Do not normalize objects that we know have already been normalized. As a general rule, the\n  // \"__sentry_skip_normalization__\" property should only be used sparingly and only should only be set on objects that\n  // have already been normalized.\n  if ((value )['__sentry_skip_normalization__']) {\n    return value ;\n  }\n\n  // We can set `__sentry_override_normalization_depth__` on an object to ensure that from there\n  // We keep a certain amount of depth.\n  // This should be used sparingly, e.g. we use it for the redux integration to ensure we get a certain amount of state.\n  const remainingDepth =\n    typeof (value )['__sentry_override_normalization_depth__'] === 'number'\n      ? ((value )['__sentry_override_normalization_depth__'] )\n      : depth;\n\n  // We're also done if we've reached the max depth\n  if (remainingDepth === 0) {\n    // At this point we know `serialized` is a string of the form `\"[object XXXX]\"`. Clean it up so it's just `\"[XXXX]\"`.\n    return stringified.replace('object ', '');\n  }\n\n  // If we've already visited this branch, bail out, as it's circular reference. If not, note that we're seeing it now.\n  if (memoize(value)) {\n    return '[Circular ~]';\n  }\n\n  // If the value has a `toJSON` method, we call it to extract more information\n  const valueWithToJSON = value ;\n  if (valueWithToJSON && typeof valueWithToJSON.toJSON === 'function') {\n    try {\n      const jsonValue = valueWithToJSON.toJSON();\n      // We need to normalize the return value of `.toJSON()` in case it has circular references\n      return visit('', jsonValue, remainingDepth - 1, maxProperties, memo);\n    } catch (err) {\n      // pass (The built-in `toJSON` failed, but we can still try to do it ourselves)\n    }\n  }\n\n  // At this point we know we either have an object or an array, we haven't seen it before, and we're going to recurse\n  // because we haven't yet reached the max depth. Create an accumulator to hold the results of visiting each\n  // property/entry, and keep track of the number of items we add to it.\n  const normalized = (Array.isArray(value) ? [] : {}) ;\n  let numAdded = 0;\n\n  // Before we begin, convert`Error` and`Event` instances into plain objects, since some of each of their relevant\n  // properties are non-enumerable and otherwise would get missed.\n  const visitable = convertToPlainObject(value );\n\n  for (const visitKey in visitable) {\n    // Avoid iterating over fields in the prototype if they've somehow been exposed to enumeration.\n    if (!Object.prototype.hasOwnProperty.call(visitable, visitKey)) {\n      continue;\n    }\n\n    if (numAdded >= maxProperties) {\n      normalized[visitKey] = '[MaxProperties ~]';\n      break;\n    }\n\n    // Recursively visit all the child nodes\n    const visitValue = visitable[visitKey];\n    normalized[visitKey] = visit(visitKey, visitValue, remainingDepth - 1, maxProperties, memo);\n\n    numAdded++;\n  }\n\n  // Once we've visited all the branches, remove the parent from memo storage\n  unmemoize(value);\n\n  // Return accumulated values\n  return normalized;\n}\n\n/* eslint-disable complexity */\n/**\n * Stringify the given value. Handles various known special values and types.\n *\n * Not meant to be used on simple primitives which already have a string representation, as it will, for example, turn\n * the number 1231 into \"[Object Number]\", nor on `null`, as it will throw.\n *\n * @param value The value to stringify\n * @returns A stringified representation of the given value\n */\nfunction stringifyValue(\n  key,\n  // this type is a tiny bit of a cheat, since this function does handle NaN (which is technically a number), but for\n  // our internal use, it'll do\n  value,\n) {\n  try {\n    if (key === 'domain' && value && typeof value === 'object' && (value )._events) {\n      return '[Domain]';\n    }\n\n    if (key === 'domainEmitter') {\n      return '[DomainEmitter]';\n    }\n\n    // It's safe to use `global`, `window`, and `document` here in this manner, as we are asserting using `typeof` first\n    // which won't throw if they are not present.\n\n    if (typeof global !== 'undefined' && value === global) {\n      return '[Global]';\n    }\n\n    // eslint-disable-next-line no-restricted-globals\n    if (typeof window !== 'undefined' && value === window) {\n      return '[Window]';\n    }\n\n    // eslint-disable-next-line no-restricted-globals\n    if (typeof document !== 'undefined' && value === document) {\n      return '[Document]';\n    }\n\n    if (isVueViewModel(value)) {\n      return '[VueViewModel]';\n    }\n\n    // React's SyntheticEvent thingy\n    if (isSyntheticEvent(value)) {\n      return '[SyntheticEvent]';\n    }\n\n    if (typeof value === 'number' && !Number.isFinite(value)) {\n      return `[${value}]`;\n    }\n\n    if (typeof value === 'function') {\n      return `[Function: ${getFunctionName(value)}]`;\n    }\n\n    if (typeof value === 'symbol') {\n      return `[${String(value)}]`;\n    }\n\n    // stringified BigInts are indistinguishable from regular numbers, so we need to label them to avoid confusion\n    if (typeof value === 'bigint') {\n      return `[BigInt: ${String(value)}]`;\n    }\n\n    // Now that we've knocked out all the special cases and the primitives, all we have left are objects. Simply casting\n    // them to strings means that instances of classes which haven't defined their `toStringTag` will just come out as\n    // `\"[object Object]\"`. If we instead look at the constructor's name (which is the same as the name of the class),\n    // we can make sure that only plain objects come out that way.\n    const objName = getConstructorName(value);\n\n    // Handle HTML Elements\n    if (/^HTML(\\w*)Element$/.test(objName)) {\n      return `[HTMLElement: ${objName}]`;\n    }\n\n    return `[object ${objName}]`;\n  } catch (err) {\n    return `**non-serializable** (${err})`;\n  }\n}\n/* eslint-enable complexity */\n\nfunction getConstructorName(value) {\n  const prototype = Object.getPrototypeOf(value);\n\n  return prototype ? prototype.constructor.name : 'null prototype';\n}\n\n/** Calculates bytes size of input string */\nfunction utf8Length(value) {\n  // eslint-disable-next-line no-bitwise\n  return ~-encodeURI(value).split(/%..|./).length;\n}\n\n/** Calculates bytes size of input object */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction jsonSize(value) {\n  return utf8Length(JSON.stringify(value));\n}\n\n/**\n * Normalizes URLs in exceptions and stacktraces to a base path so Sentry can fingerprint\n * across platforms and working directory.\n *\n * @param url The URL to be normalized.\n * @param basePath The application base path.\n * @returns The normalized URL.\n */\nfunction normalizeUrlToBase(url, basePath) {\n  const escapedBase = basePath\n    // Backslash to forward\n    .replace(/\\\\/g, '/')\n    // Escape RegExp special characters\n    .replace(/[|\\\\{}()[\\]^$+*?.]/g, '\\\\$&');\n\n  let newUrl = url;\n  try {\n    newUrl = decodeURI(url);\n  } catch (_Oo) {\n    // Sometime this breaks\n  }\n  return (\n    newUrl\n      .replace(/\\\\/g, '/')\n      .replace(/webpack:\\/?/g, '') // Remove intermediate base path\n      // eslint-disable-next-line @sentry-internal/sdk/no-regexp-constructor\n      .replace(new RegExp(`(file://)?/*${escapedBase}/*`, 'ig'), 'app:///')\n  );\n}\n\nexport { normalize, normalizeToSize, normalizeUrlToBase };\n","/* eslint-disable @typescript-eslint/no-unsafe-member-access */\n/* eslint-disable @typescript-eslint/no-explicit-any */\n\n/**\n * Helper to decycle json objects\n *\n * @deprecated This function is deprecated and will be removed in the next major version.\n */\n// TODO(v9): Move this function into normalize() directly\nfunction memoBuilder() {\n  const hasWeakSet = typeof WeakSet === 'function';\n  const inner = hasWeakSet ? new WeakSet() : [];\n  function memoize(obj) {\n    if (hasWeakSet) {\n      if (inner.has(obj)) {\n        return true;\n      }\n      inner.add(obj);\n      return false;\n    }\n    // eslint-disable-next-line @typescript-eslint/prefer-for-of\n    for (let i = 0; i < inner.length; i++) {\n      const value = inner[i];\n      if (value === obj) {\n        return true;\n      }\n    }\n    inner.push(obj);\n    return false;\n  }\n\n  function unmemoize(obj) {\n    if (hasWeakSet) {\n      inner.delete(obj);\n    } else {\n      for (let i = 0; i < inner.length; i++) {\n        if (inner[i] === obj) {\n          inner.splice(i, 1);\n          break;\n        }\n      }\n    }\n  }\n  return [memoize, unmemoize];\n}\n\nexport { memoBuilder };\n","/**\n * Use this attribute to represent the source of a span.\n * Should be one of: custom, url, route, view, component, task, unknown\n *\n */\nconst SEMANTIC_ATTRIBUTE_SENTRY_SOURCE = 'sentry.source';\n\n/**\n * Use this attribute to represent the sample rate used for a span.\n */\nconst SEMANTIC_ATTRIBUTE_SENTRY_SAMPLE_RATE = 'sentry.sample_rate';\n\n/**\n * Use this attribute to represent the operation of a span.\n */\nconst SEMANTIC_ATTRIBUTE_SENTRY_OP = 'sentry.op';\n\n/**\n * Use this attribute to represent the origin of a span.\n */\nconst SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN = 'sentry.origin';\n\n/** The reason why an idle span finished. */\nconst SEMANTIC_ATTRIBUTE_SENTRY_IDLE_SPAN_FINISH_REASON = 'sentry.idle_span_finish_reason';\n\n/** The unit of a measurement, which may be stored as a TimedEvent. */\nconst SEMANTIC_ATTRIBUTE_SENTRY_MEASUREMENT_UNIT = 'sentry.measurement_unit';\n\n/** The value of a measurement, which may be stored as a TimedEvent. */\nconst SEMANTIC_ATTRIBUTE_SENTRY_MEASUREMENT_VALUE = 'sentry.measurement_value';\n\n/**\n * The id of the profile that this span occurred in.\n */\nconst SEMANTIC_ATTRIBUTE_PROFILE_ID = 'sentry.profile_id';\n\nconst SEMANTIC_ATTRIBUTE_EXCLUSIVE_TIME = 'sentry.exclusive_time';\n\nconst SEMANTIC_ATTRIBUTE_CACHE_HIT = 'cache.hit';\n\nconst SEMANTIC_ATTRIBUTE_CACHE_KEY = 'cache.key';\n\nconst SEMANTIC_ATTRIBUTE_CACHE_ITEM_SIZE = 'cache.item_size';\n\n/** TODO: Remove these once we update to latest semantic conventions */\nconst SEMANTIC_ATTRIBUTE_HTTP_REQUEST_METHOD = 'http.request.method';\nconst SEMANTIC_ATTRIBUTE_URL_FULL = 'url.full';\n\nexport { SEMANTIC_ATTRIBUTE_CACHE_HIT, SEMANTIC_ATTRIBUTE_CACHE_ITEM_SIZE, SEMANTIC_ATTRIBUTE_CACHE_KEY, SEMANTIC_ATTRIBUTE_EXCLUSIVE_TIME, SEMANTIC_ATTRIBUTE_HTTP_REQUEST_METHOD, SEMANTIC_ATTRIBUTE_PROFILE_ID, SEMANTIC_ATTRIBUTE_SENTRY_IDLE_SPAN_FINISH_REASON, SEMANTIC_ATTRIBUTE_SENTRY_MEASUREMENT_UNIT, SEMANTIC_ATTRIBUTE_SENTRY_MEASUREMENT_VALUE, SEMANTIC_ATTRIBUTE_SENTRY_OP, SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN, SEMANTIC_ATTRIBUTE_SENTRY_SAMPLE_RATE, SEMANTIC_ATTRIBUTE_SENTRY_SOURCE, SEMANTIC_ATTRIBUTE_URL_FULL };\n","import { DEBUG_BUILD } from './debug-build.js';\nimport { isString } from './is.js';\nimport { logger } from './logger.js';\n\n/**\n * @deprecated Use a `\"baggage\"` string directly\n */\nconst BAGGAGE_HEADER_NAME = 'baggage';\n\nconst SENTRY_BAGGAGE_KEY_PREFIX = 'sentry-';\n\nconst SENTRY_BAGGAGE_KEY_PREFIX_REGEX = /^sentry-/;\n\n/**\n * Max length of a serialized baggage string\n *\n * https://www.w3.org/TR/baggage/#limits\n */\nconst MAX_BAGGAGE_STRING_LENGTH = 8192;\n\n/**\n * Takes a baggage header and turns it into Dynamic Sampling Context, by extracting all the \"sentry-\" prefixed values\n * from it.\n *\n * @param baggageHeader A very bread definition of a baggage header as it might appear in various frameworks.\n * @returns The Dynamic Sampling Context that was found on `baggageHeader`, if there was any, `undefined` otherwise.\n */\nfunction baggageHeaderToDynamicSamplingContext(\n  // Very liberal definition of what any incoming header might look like\n  baggageHeader,\n) {\n  const baggageObject = parseBaggageHeader(baggageHeader);\n\n  if (!baggageObject) {\n    return undefined;\n  }\n\n  // Read all \"sentry-\" prefixed values out of the baggage object and put it onto a dynamic sampling context object.\n  const dynamicSamplingContext = Object.entries(baggageObject).reduce((acc, [key, value]) => {\n    if (key.match(SENTRY_BAGGAGE_KEY_PREFIX_REGEX)) {\n      const nonPrefixedKey = key.slice(SENTRY_BAGGAGE_KEY_PREFIX.length);\n      acc[nonPrefixedKey] = value;\n    }\n    return acc;\n  }, {});\n\n  // Only return a dynamic sampling context object if there are keys in it.\n  // A keyless object means there were no sentry values on the header, which means that there is no DSC.\n  if (Object.keys(dynamicSamplingContext).length > 0) {\n    return dynamicSamplingContext ;\n  } else {\n    return undefined;\n  }\n}\n\n/**\n * Turns a Dynamic Sampling Object into a baggage header by prefixing all the keys on the object with \"sentry-\".\n *\n * @param dynamicSamplingContext The Dynamic Sampling Context to turn into a header. For convenience and compatibility\n * with the `getDynamicSamplingContext` method on the Transaction class ,this argument can also be `undefined`. If it is\n * `undefined` the function will return `undefined`.\n * @returns a baggage header, created from `dynamicSamplingContext`, or `undefined` either if `dynamicSamplingContext`\n * was `undefined`, or if `dynamicSamplingContext` didn't contain any values.\n */\nfunction dynamicSamplingContextToSentryBaggageHeader(\n  // this also takes undefined for convenience and bundle size in other places\n  dynamicSamplingContext,\n) {\n  if (!dynamicSamplingContext) {\n    return undefined;\n  }\n\n  // Prefix all DSC keys with \"sentry-\" and put them into a new object\n  const sentryPrefixedDSC = Object.entries(dynamicSamplingContext).reduce(\n    (acc, [dscKey, dscValue]) => {\n      if (dscValue) {\n        acc[`${SENTRY_BAGGAGE_KEY_PREFIX}${dscKey}`] = dscValue;\n      }\n      return acc;\n    },\n    {},\n  );\n\n  return objectToBaggageHeader(sentryPrefixedDSC);\n}\n\n/**\n * Take a baggage header and parse it into an object.\n */\nfunction parseBaggageHeader(\n  baggageHeader,\n) {\n  if (!baggageHeader || (!isString(baggageHeader) && !Array.isArray(baggageHeader))) {\n    return undefined;\n  }\n\n  if (Array.isArray(baggageHeader)) {\n    // Combine all baggage headers into one object containing the baggage values so we can later read the Sentry-DSC-values from it\n    return baggageHeader.reduce((acc, curr) => {\n      const currBaggageObject = baggageHeaderToObject(curr);\n      Object.entries(currBaggageObject).forEach(([key, value]) => {\n        acc[key] = value;\n      });\n      return acc;\n    }, {});\n  }\n\n  return baggageHeaderToObject(baggageHeader);\n}\n\n/**\n * Will parse a baggage header, which is a simple key-value map, into a flat object.\n *\n * @param baggageHeader The baggage header to parse.\n * @returns a flat object containing all the key-value pairs from `baggageHeader`.\n */\nfunction baggageHeaderToObject(baggageHeader) {\n  return baggageHeader\n    .split(',')\n    .map(baggageEntry => baggageEntry.split('=').map(keyOrValue => decodeURIComponent(keyOrValue.trim())))\n    .reduce((acc, [key, value]) => {\n      if (key && value) {\n        acc[key] = value;\n      }\n      return acc;\n    }, {});\n}\n\n/**\n * Turns a flat object (key-value pairs) into a baggage header, which is also just key-value pairs.\n *\n * @param object The object to turn into a baggage header.\n * @returns a baggage header string, or `undefined` if the object didn't have any values, since an empty baggage header\n * is not spec compliant.\n */\nfunction objectToBaggageHeader(object) {\n  if (Object.keys(object).length === 0) {\n    // An empty baggage header is not spec compliant: We return undefined.\n    return undefined;\n  }\n\n  return Object.entries(object).reduce((baggageHeader, [objectKey, objectValue], currentIndex) => {\n    const baggageEntry = `${encodeURIComponent(objectKey)}=${encodeURIComponent(objectValue)}`;\n    const newBaggageHeader = currentIndex === 0 ? baggageEntry : `${baggageHeader},${baggageEntry}`;\n    if (newBaggageHeader.length > MAX_BAGGAGE_STRING_LENGTH) {\n      DEBUG_BUILD &&\n        logger.warn(\n          `Not adding key: ${objectKey} with val: ${objectValue} to baggage header due to exceeding baggage size limits.`,\n        );\n      return baggageHeader;\n    } else {\n      return newBaggageHeader;\n    }\n  }, '');\n}\n\nexport { BAGGAGE_HEADER_NAME, MAX_BAGGAGE_STRING_LENGTH, SENTRY_BAGGAGE_KEY_PREFIX, SENTRY_BAGGAGE_KEY_PREFIX_REGEX, baggageHeaderToDynamicSamplingContext, dynamicSamplingContextToSentryBaggageHeader, parseBaggageHeader };\n","import { getClient } from '../currentScopes.js';\n\n// Treeshakable guard to remove all code related to tracing\n\n/**\n * Determines if tracing is currently enabled.\n *\n * Tracing is enabled when at least one of `tracesSampleRate` and `tracesSampler` is defined in the SDK config.\n */\nfunction hasTracingEnabled(\n  maybeOptions,\n) {\n  if (typeof __SENTRY_TRACING__ === 'boolean' && !__SENTRY_TRACING__) {\n    return false;\n  }\n\n  const client = getClient();\n  const options = maybeOptions || (client && client.getOptions());\n  // eslint-disable-next-line deprecation/deprecation\n  return !!options && (options.enableTracing || 'tracesSampleRate' in options || 'tracesSampler' in options);\n}\n\nexport { hasTracingEnabled };\n","import { dropUndefinedKeys } from '../utils-hoist/object.js';\n\n/**\n * key: bucketKey\n * value: [exportKey, MetricSummary]\n */\n\nconst METRICS_SPAN_FIELD = '_sentryMetrics';\n\n/**\n * Fetches the metric summary if it exists for the passed span\n */\nfunction getMetricSummaryJsonForSpan(span) {\n  const storage = (span )[METRICS_SPAN_FIELD];\n\n  if (!storage) {\n    return undefined;\n  }\n  const output = {};\n\n  for (const [, [exportKey, summary]] of storage) {\n    const arr = output[exportKey] || (output[exportKey] = []);\n    arr.push(dropUndefinedKeys(summary));\n  }\n\n  return output;\n}\n\n/**\n * Updates the metric summary on a span.\n */\nfunction updateMetricSummaryOnSpan(\n  span,\n  metricType,\n  sanitizedName,\n  value,\n  unit,\n  tags,\n  bucketKey,\n) {\n  const existingStorage = (span )[METRICS_SPAN_FIELD];\n  const storage =\n    existingStorage ||\n    ((span )[METRICS_SPAN_FIELD] = new Map());\n\n  const exportKey = `${metricType}:${sanitizedName}@${unit}`;\n  const bucketItem = storage.get(bucketKey);\n\n  if (bucketItem) {\n    const [, summary] = bucketItem;\n    storage.set(bucketKey, [\n      exportKey,\n      {\n        min: Math.min(summary.min, value),\n        max: Math.max(summary.max, value),\n        count: (summary.count += 1),\n        sum: (summary.sum += value),\n        tags: summary.tags,\n      },\n    ]);\n  } else {\n    storage.set(bucketKey, [\n      exportKey,\n      {\n        min: value,\n        max: value,\n        count: 1,\n        sum: value,\n        tags,\n      },\n    ]);\n  }\n}\n\nexport { getMetricSummaryJsonForSpan, updateMetricSummaryOnSpan };\n","const SPAN_STATUS_UNSET = 0;\nconst SPAN_STATUS_OK = 1;\nconst SPAN_STATUS_ERROR = 2;\n\n/**\n * Converts a HTTP status code into a sentry status with a message.\n *\n * @param httpStatus The HTTP response status code.\n * @returns The span status or unknown_error.\n */\n// https://develop.sentry.dev/sdk/event-payloads/span/\nfunction getSpanStatusFromHttpCode(httpStatus) {\n  if (httpStatus < 400 && httpStatus >= 100) {\n    return { code: SPAN_STATUS_OK };\n  }\n\n  if (httpStatus >= 400 && httpStatus < 500) {\n    switch (httpStatus) {\n      case 401:\n        return { code: SPAN_STATUS_ERROR, message: 'unauthenticated' };\n      case 403:\n        return { code: SPAN_STATUS_ERROR, message: 'permission_denied' };\n      case 404:\n        return { code: SPAN_STATUS_ERROR, message: 'not_found' };\n      case 409:\n        return { code: SPAN_STATUS_ERROR, message: 'already_exists' };\n      case 413:\n        return { code: SPAN_STATUS_ERROR, message: 'failed_precondition' };\n      case 429:\n        return { code: SPAN_STATUS_ERROR, message: 'resource_exhausted' };\n      case 499:\n        return { code: SPAN_STATUS_ERROR, message: 'cancelled' };\n      default:\n        return { code: SPAN_STATUS_ERROR, message: 'invalid_argument' };\n    }\n  }\n\n  if (httpStatus >= 500 && httpStatus < 600) {\n    switch (httpStatus) {\n      case 501:\n        return { code: SPAN_STATUS_ERROR, message: 'unimplemented' };\n      case 503:\n        return { code: SPAN_STATUS_ERROR, message: 'unavailable' };\n      case 504:\n        return { code: SPAN_STATUS_ERROR, message: 'deadline_exceeded' };\n      default:\n        return { code: SPAN_STATUS_ERROR, message: 'internal_error' };\n    }\n  }\n\n  return { code: SPAN_STATUS_ERROR, message: 'unknown_error' };\n}\n\n/**\n * Sets the Http status attributes on the current span based on the http code.\n * Additionally, the span's status is updated, depending on the http code.\n */\nfunction setHttpStatus(span, httpStatus) {\n  span.setAttribute('http.response.status_code', httpStatus);\n\n  const spanStatus = getSpanStatusFromHttpCode(httpStatus);\n  if (spanStatus.message !== 'unknown_error') {\n    span.setStatus(spanStatus);\n  }\n}\n\nexport { SPAN_STATUS_ERROR, SPAN_STATUS_OK, SPAN_STATUS_UNSET, getSpanStatusFromHttpCode, setHttpStatus };\n","import { getAsyncContextStrategy } from '../asyncContext/index.js';\nimport { getMainCarrier } from '../carrier.js';\nimport { getCurrentScope } from '../currentScopes.js';\nimport { getMetricSummaryJsonForSpan, updateMetricSummaryOnSpan } from '../metrics/metric-summary.js';\nimport { SEMANTIC_ATTRIBUTE_SENTRY_OP, SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN } from '../semanticAttributes.js';\nimport { SPAN_STATUS_UNSET, SPAN_STATUS_OK } from '../tracing/spanstatus.js';\nimport { consoleSandbox } from '../utils-hoist/logger.js';\nimport { dropUndefinedKeys, addNonEnumerableProperty } from '../utils-hoist/object.js';\nimport { timestampInSeconds } from '../utils-hoist/time.js';\nimport { generateSentryTraceHeader } from '../utils-hoist/tracing.js';\nimport { _getSpanForScope } from './spanOnScope.js';\n\n// These are aligned with OpenTelemetry trace flags\nconst TRACE_FLAG_NONE = 0x0;\nconst TRACE_FLAG_SAMPLED = 0x1;\n\n// todo(v9): Remove this once we've stopped dropping spans via `beforeSendSpan`\nlet hasShownSpanDropWarning = false;\n\n/**\n * Convert a span to a trace context, which can be sent as the `trace` context in an event.\n * By default, this will only include trace_id, span_id & parent_span_id.\n * If `includeAllData` is true, it will also include data, op, status & origin.\n */\nfunction spanToTransactionTraceContext(span) {\n  const { spanId: span_id, traceId: trace_id } = span.spanContext();\n  const { data, op, parent_span_id, status, origin } = spanToJSON(span);\n\n  return dropUndefinedKeys({\n    parent_span_id,\n    span_id,\n    trace_id,\n    data,\n    op,\n    status,\n    origin,\n  });\n}\n\n/**\n * Convert a span to a trace context, which can be sent as the `trace` context in a non-transaction event.\n */\nfunction spanToTraceContext(span) {\n  const { spanId: span_id, traceId: trace_id } = span.spanContext();\n  const { parent_span_id } = spanToJSON(span);\n\n  return dropUndefinedKeys({ parent_span_id, span_id, trace_id });\n}\n\n/**\n * Convert a Span to a Sentry trace header.\n */\nfunction spanToTraceHeader(span) {\n  const { traceId, spanId } = span.spanContext();\n  const sampled = spanIsSampled(span);\n  return generateSentryTraceHeader(traceId, spanId, sampled);\n}\n\n/**\n * Convert a span time input into a timestamp in seconds.\n */\nfunction spanTimeInputToSeconds(input) {\n  if (typeof input === 'number') {\n    return ensureTimestampInSeconds(input);\n  }\n\n  if (Array.isArray(input)) {\n    // See {@link HrTime} for the array-based time format\n    return input[0] + input[1] / 1e9;\n  }\n\n  if (input instanceof Date) {\n    return ensureTimestampInSeconds(input.getTime());\n  }\n\n  return timestampInSeconds();\n}\n\n/**\n * Converts a timestamp to second, if it was in milliseconds, or keeps it as second.\n */\nfunction ensureTimestampInSeconds(timestamp) {\n  const isMs = timestamp > 9999999999;\n  return isMs ? timestamp / 1000 : timestamp;\n}\n\n/**\n * Convert a span to a JSON representation.\n */\n// Note: Because of this, we currently have a circular type dependency (which we opted out of in package.json).\n// This is not avoidable as we need `spanToJSON` in `spanUtils.ts`, which in turn is needed by `span.ts` for backwards compatibility.\n// And `spanToJSON` needs the Span class from `span.ts` to check here.\nfunction spanToJSON(span) {\n  if (spanIsSentrySpan(span)) {\n    return span.getSpanJSON();\n  }\n\n  try {\n    const { spanId: span_id, traceId: trace_id } = span.spanContext();\n\n    // Handle a span from @opentelemetry/sdk-base-trace's `Span` class\n    if (spanIsOpenTelemetrySdkTraceBaseSpan(span)) {\n      const { attributes, startTime, name, endTime, parentSpanId, status } = span;\n\n      return dropUndefinedKeys({\n        span_id,\n        trace_id,\n        data: attributes,\n        description: name,\n        parent_span_id: parentSpanId,\n        start_timestamp: spanTimeInputToSeconds(startTime),\n        // This is [0,0] by default in OTEL, in which case we want to interpret this as no end time\n        timestamp: spanTimeInputToSeconds(endTime) || undefined,\n        status: getStatusMessage(status),\n        op: attributes[SEMANTIC_ATTRIBUTE_SENTRY_OP],\n        origin: attributes[SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN] ,\n        _metrics_summary: getMetricSummaryJsonForSpan(span),\n      });\n    }\n\n    // Finally, at least we have `spanContext()`....\n    return {\n      span_id,\n      trace_id,\n    };\n  } catch (e) {\n    return {};\n  }\n}\n\nfunction spanIsOpenTelemetrySdkTraceBaseSpan(span) {\n  const castSpan = span ;\n  return !!castSpan.attributes && !!castSpan.startTime && !!castSpan.name && !!castSpan.endTime && !!castSpan.status;\n}\n\n/** Exported only for tests. */\n\n/**\n * Sadly, due to circular dependency checks we cannot actually import the Span class here and check for instanceof.\n * :( So instead we approximate this by checking if it has the `getSpanJSON` method.\n */\nfunction spanIsSentrySpan(span) {\n  return typeof (span ).getSpanJSON === 'function';\n}\n\n/**\n * Returns true if a span is sampled.\n * In most cases, you should just use `span.isRecording()` instead.\n * However, this has a slightly different semantic, as it also returns false if the span is finished.\n * So in the case where this distinction is important, use this method.\n */\nfunction spanIsSampled(span) {\n  // We align our trace flags with the ones OpenTelemetry use\n  // So we also check for sampled the same way they do.\n  const { traceFlags } = span.spanContext();\n  return traceFlags === TRACE_FLAG_SAMPLED;\n}\n\n/** Get the status message to use for a JSON representation of a span. */\nfunction getStatusMessage(status) {\n  if (!status || status.code === SPAN_STATUS_UNSET) {\n    return undefined;\n  }\n\n  if (status.code === SPAN_STATUS_OK) {\n    return 'ok';\n  }\n\n  return status.message || 'unknown_error';\n}\n\nconst CHILD_SPANS_FIELD = '_sentryChildSpans';\nconst ROOT_SPAN_FIELD = '_sentryRootSpan';\n\n/**\n * Adds an opaque child span reference to a span.\n */\nfunction addChildSpanToSpan(span, childSpan) {\n  // We store the root span reference on the child span\n  // We need this for `getRootSpan()` to work\n  const rootSpan = span[ROOT_SPAN_FIELD] || span;\n  addNonEnumerableProperty(childSpan , ROOT_SPAN_FIELD, rootSpan);\n\n  // We store a list of child spans on the parent span\n  // We need this for `getSpanDescendants()` to work\n  if (span[CHILD_SPANS_FIELD]) {\n    span[CHILD_SPANS_FIELD].add(childSpan);\n  } else {\n    addNonEnumerableProperty(span, CHILD_SPANS_FIELD, new Set([childSpan]));\n  }\n}\n\n/** This is only used internally by Idle Spans. */\nfunction removeChildSpanFromSpan(span, childSpan) {\n  if (span[CHILD_SPANS_FIELD]) {\n    span[CHILD_SPANS_FIELD].delete(childSpan);\n  }\n}\n\n/**\n * Returns an array of the given span and all of its descendants.\n */\nfunction getSpanDescendants(span) {\n  const resultSet = new Set();\n\n  function addSpanChildren(span) {\n    // This exit condition is required to not infinitely loop in case of a circular dependency.\n    if (resultSet.has(span)) {\n      return;\n      // We want to ignore unsampled spans (e.g. non recording spans)\n    } else if (spanIsSampled(span)) {\n      resultSet.add(span);\n      const childSpans = span[CHILD_SPANS_FIELD] ? Array.from(span[CHILD_SPANS_FIELD]) : [];\n      for (const childSpan of childSpans) {\n        addSpanChildren(childSpan);\n      }\n    }\n  }\n\n  addSpanChildren(span);\n\n  return Array.from(resultSet);\n}\n\n/**\n * Returns the root span of a given span.\n */\nfunction getRootSpan(span) {\n  return span[ROOT_SPAN_FIELD] || span;\n}\n\n/**\n * Returns the currently active span.\n */\nfunction getActiveSpan() {\n  const carrier = getMainCarrier();\n  const acs = getAsyncContextStrategy(carrier);\n  if (acs.getActiveSpan) {\n    return acs.getActiveSpan();\n  }\n\n  return _getSpanForScope(getCurrentScope());\n}\n\n/**\n * Updates the metric summary on the currently active span\n */\nfunction updateMetricSummaryOnActiveSpan(\n  metricType,\n  sanitizedName,\n  value,\n  unit,\n  tags,\n  bucketKey,\n) {\n  const span = getActiveSpan();\n  if (span) {\n    updateMetricSummaryOnSpan(span, metricType, sanitizedName, value, unit, tags, bucketKey);\n  }\n}\n\n/**\n * Logs a warning once if `beforeSendSpan` is used to drop spans.\n *\n * todo(v9): Remove this once we've stopped dropping spans via `beforeSendSpan`.\n */\nfunction showSpanDropWarning() {\n  if (!hasShownSpanDropWarning) {\n    consoleSandbox(() => {\n      // eslint-disable-next-line no-console\n      console.warn(\n        '[Sentry] Deprecation warning: Returning null from `beforeSendSpan` will be disallowed from SDK version 9.0.0 onwards. The callback will only support mutating spans. To drop certain spans, configure the respective integrations directly.',\n      );\n    });\n    hasShownSpanDropWarning = true;\n  }\n}\n\nexport { TRACE_FLAG_NONE, TRACE_FLAG_SAMPLED, addChildSpanToSpan, getActiveSpan, getRootSpan, getSpanDescendants, getStatusMessage, removeChildSpanFromSpan, showSpanDropWarning, spanIsSampled, spanTimeInputToSeconds, spanToJSON, spanToTraceContext, spanToTraceHeader, spanToTransactionTraceContext, updateMetricSummaryOnActiveSpan };\n","import { DEFAULT_ENVIRONMENT } from '../constants.js';\nimport { getClient } from '../currentScopes.js';\nimport { SEMANTIC_ATTRIBUTE_SENTRY_SAMPLE_RATE, SEMANTIC_ATTRIBUTE_SENTRY_SOURCE } from '../semanticAttributes.js';\nimport { baggageHeaderToDynamicSamplingContext, dynamicSamplingContextToSentryBaggageHeader } from '../utils-hoist/baggage.js';\nimport { dropUndefinedKeys, addNonEnumerableProperty } from '../utils-hoist/object.js';\nimport { hasTracingEnabled } from '../utils/hasTracingEnabled.js';\nimport { getRootSpan, spanToJSON, spanIsSampled } from '../utils/spanUtils.js';\n\n/**\n * If you change this value, also update the terser plugin config to\n * avoid minification of the object property!\n */\nconst FROZEN_DSC_FIELD = '_frozenDsc';\n\n/**\n * Freeze the given DSC on the given span.\n */\nfunction freezeDscOnSpan(span, dsc) {\n  const spanWithMaybeDsc = span ;\n  addNonEnumerableProperty(spanWithMaybeDsc, FROZEN_DSC_FIELD, dsc);\n}\n\n/**\n * Creates a dynamic sampling context from a client.\n *\n * Dispatches the `createDsc` lifecycle hook as a side effect.\n */\nfunction getDynamicSamplingContextFromClient(trace_id, client) {\n  const options = client.getOptions();\n\n  const { publicKey: public_key } = client.getDsn() || {};\n\n  const dsc = dropUndefinedKeys({\n    environment: options.environment || DEFAULT_ENVIRONMENT,\n    release: options.release,\n    public_key,\n    trace_id,\n  }) ;\n\n  client.emit('createDsc', dsc);\n\n  return dsc;\n}\n\n/**\n * Get the dynamic sampling context for the currently active scopes.\n */\nfunction getDynamicSamplingContextFromScope(client, scope) {\n  const propagationContext = scope.getPropagationContext();\n  return propagationContext.dsc || getDynamicSamplingContextFromClient(propagationContext.traceId, client);\n}\n\n/**\n * Creates a dynamic sampling context from a span (and client and scope)\n *\n * @param span the span from which a few values like the root span name and sample rate are extracted.\n *\n * @returns a dynamic sampling context\n */\nfunction getDynamicSamplingContextFromSpan(span) {\n  const client = getClient();\n  if (!client) {\n    return {};\n  }\n\n  const rootSpan = getRootSpan(span);\n\n  // For core implementation, we freeze the DSC onto the span as a non-enumerable property\n  const frozenDsc = (rootSpan )[FROZEN_DSC_FIELD];\n  if (frozenDsc) {\n    return frozenDsc;\n  }\n\n  // For OpenTelemetry, we freeze the DSC on the trace state\n  const traceState = rootSpan.spanContext().traceState;\n  const traceStateDsc = traceState && traceState.get('sentry.dsc');\n\n  // If the span has a DSC, we want it to take precedence\n  const dscOnTraceState = traceStateDsc && baggageHeaderToDynamicSamplingContext(traceStateDsc);\n\n  if (dscOnTraceState) {\n    return dscOnTraceState;\n  }\n\n  // Else, we generate it from the span\n  const dsc = getDynamicSamplingContextFromClient(span.spanContext().traceId, client);\n  const jsonSpan = spanToJSON(rootSpan);\n  const attributes = jsonSpan.data || {};\n  const maybeSampleRate = attributes[SEMANTIC_ATTRIBUTE_SENTRY_SAMPLE_RATE];\n\n  if (maybeSampleRate != null) {\n    dsc.sample_rate = `${maybeSampleRate}`;\n  }\n\n  // We don't want to have a transaction name in the DSC if the source is \"url\" because URLs might contain PII\n  const source = attributes[SEMANTIC_ATTRIBUTE_SENTRY_SOURCE];\n\n  // after JSON conversion, txn.name becomes jsonSpan.description\n  const name = jsonSpan.description;\n  if (source !== 'url' && name) {\n    dsc.transaction = name;\n  }\n\n  // How can we even land here with hasTracingEnabled() returning false?\n  // Otel creates a Non-recording span in Tracing Without Performance mode when handling incoming requests\n  // So we end up with an active span that is not sampled (neither positively nor negatively)\n  if (hasTracingEnabled()) {\n    dsc.sampled = String(spanIsSampled(rootSpan));\n  }\n\n  client.emit('createDsc', dsc, rootSpan);\n\n  return dsc;\n}\n\n/**\n * Convert a Span to a baggage header.\n */\nfunction spanToBaggageHeader(span) {\n  const dsc = getDynamicSamplingContextFromSpan(span);\n  return dynamicSamplingContextToSentryBaggageHeader(dsc);\n}\n\nexport { freezeDscOnSpan, getDynamicSamplingContextFromClient, getDynamicSamplingContextFromScope, getDynamicSamplingContextFromSpan, spanToBaggageHeader };\n","import { getDynamicSamplingContextFromSpan } from '../tracing/dynamicSamplingContext.js';\nimport { dropUndefinedKeys } from '../utils-hoist/object.js';\nimport { merge } from './merge.js';\nimport { spanToTraceContext, getRootSpan, spanToJSON } from './spanUtils.js';\n\n/**\n * Applies data from the scope to the event and runs all event processors on it.\n */\nfunction applyScopeDataToEvent(event, data) {\n  const { fingerprint, span, breadcrumbs, sdkProcessingMetadata } = data;\n\n  // Apply general data\n  applyDataToEvent(event, data);\n\n  // We want to set the trace context for normal events only if there isn't already\n  // a trace context on the event. There is a product feature in place where we link\n  // errors with transaction and it relies on that.\n  if (span) {\n    applySpanToEvent(event, span);\n  }\n\n  applyFingerprintToEvent(event, fingerprint);\n  applyBreadcrumbsToEvent(event, breadcrumbs);\n  applySdkMetadataToEvent(event, sdkProcessingMetadata);\n}\n\n/** Merge data of two scopes together. */\nfunction mergeScopeData(data, mergeData) {\n  const {\n    extra,\n    tags,\n    user,\n    contexts,\n    level,\n    sdkProcessingMetadata,\n    breadcrumbs,\n    fingerprint,\n    eventProcessors,\n    attachments,\n    propagationContext,\n    transactionName,\n    span,\n  } = mergeData;\n\n  mergeAndOverwriteScopeData(data, 'extra', extra);\n  mergeAndOverwriteScopeData(data, 'tags', tags);\n  mergeAndOverwriteScopeData(data, 'user', user);\n  mergeAndOverwriteScopeData(data, 'contexts', contexts);\n\n  data.sdkProcessingMetadata = merge(data.sdkProcessingMetadata, sdkProcessingMetadata, 2);\n\n  if (level) {\n    data.level = level;\n  }\n\n  if (transactionName) {\n    data.transactionName = transactionName;\n  }\n\n  if (span) {\n    data.span = span;\n  }\n\n  if (breadcrumbs.length) {\n    data.breadcrumbs = [...data.breadcrumbs, ...breadcrumbs];\n  }\n\n  if (fingerprint.length) {\n    data.fingerprint = [...data.fingerprint, ...fingerprint];\n  }\n\n  if (eventProcessors.length) {\n    data.eventProcessors = [...data.eventProcessors, ...eventProcessors];\n  }\n\n  if (attachments.length) {\n    data.attachments = [...data.attachments, ...attachments];\n  }\n\n  data.propagationContext = { ...data.propagationContext, ...propagationContext };\n}\n\n/**\n * Merges certain scope data. Undefined values will overwrite any existing values.\n * Exported only for tests.\n */\nfunction mergeAndOverwriteScopeData\n\n(data, prop, mergeVal) {\n  data[prop] = merge(data[prop], mergeVal, 1);\n}\n\nfunction applyDataToEvent(event, data) {\n  const { extra, tags, user, contexts, level, transactionName } = data;\n\n  const cleanedExtra = dropUndefinedKeys(extra);\n  if (cleanedExtra && Object.keys(cleanedExtra).length) {\n    event.extra = { ...cleanedExtra, ...event.extra };\n  }\n\n  const cleanedTags = dropUndefinedKeys(tags);\n  if (cleanedTags && Object.keys(cleanedTags).length) {\n    event.tags = { ...cleanedTags, ...event.tags };\n  }\n\n  const cleanedUser = dropUndefinedKeys(user);\n  if (cleanedUser && Object.keys(cleanedUser).length) {\n    event.user = { ...cleanedUser, ...event.user };\n  }\n\n  const cleanedContexts = dropUndefinedKeys(contexts);\n  if (cleanedContexts && Object.keys(cleanedContexts).length) {\n    event.contexts = { ...cleanedContexts, ...event.contexts };\n  }\n\n  if (level) {\n    event.level = level;\n  }\n\n  // transaction events get their `transaction` from the root span name\n  if (transactionName && event.type !== 'transaction') {\n    event.transaction = transactionName;\n  }\n}\n\nfunction applyBreadcrumbsToEvent(event, breadcrumbs) {\n  const mergedBreadcrumbs = [...(event.breadcrumbs || []), ...breadcrumbs];\n  event.breadcrumbs = mergedBreadcrumbs.length ? mergedBreadcrumbs : undefined;\n}\n\nfunction applySdkMetadataToEvent(event, sdkProcessingMetadata) {\n  event.sdkProcessingMetadata = {\n    ...event.sdkProcessingMetadata,\n    ...sdkProcessingMetadata,\n  };\n}\n\nfunction applySpanToEvent(event, span) {\n  event.contexts = {\n    trace: spanToTraceContext(span),\n    ...event.contexts,\n  };\n\n  event.sdkProcessingMetadata = {\n    dynamicSamplingContext: getDynamicSamplingContextFromSpan(span),\n    ...event.sdkProcessingMetadata,\n  };\n\n  const rootSpan = getRootSpan(span);\n  const transactionName = spanToJSON(rootSpan).description;\n  if (transactionName && !event.transaction && event.type === 'transaction') {\n    event.transaction = transactionName;\n  }\n}\n\n/**\n * Applies fingerprint from the scope to the event if there's one,\n * uses message if there's one instead or get rid of empty fingerprint\n */\nfunction applyFingerprintToEvent(event, fingerprint) {\n  // Make sure it's an array first and we actually have something in place\n  event.fingerprint = event.fingerprint\n    ? Array.isArray(event.fingerprint)\n      ? event.fingerprint\n      : [event.fingerprint]\n    : [];\n\n  // If we have something on the scope, then merge it with event\n  if (fingerprint) {\n    event.fingerprint = event.fingerprint.concat(fingerprint);\n  }\n\n  // If we have no data at all, remove empty array default\n  if (event.fingerprint && !event.fingerprint.length) {\n    delete event.fingerprint;\n  }\n}\n\nexport { applyScopeDataToEvent, mergeAndOverwriteScopeData, mergeScopeData };\n","import { DEFAULT_ENVIRONMENT } from '../constants.js';\nimport { getGlobalScope } from '../currentScopes.js';\nimport { notifyEventProcessors } from '../eventProcessors.js';\nimport { Scope } from '../scope.js';\nimport { getFilenameToDebugIdMap } from '../utils-hoist/debug-ids.js';\nimport { uuid4, addExceptionMechanism } from '../utils-hoist/misc.js';\nimport { normalize } from '../utils-hoist/normalize.js';\nimport { truncate } from '../utils-hoist/string.js';\nimport { dateTimestampInSeconds } from '../utils-hoist/time.js';\nimport { mergeScopeData, applyScopeDataToEvent } from './applyScopeDataToEvent.js';\n\n/**\n * This type makes sure that we get either a CaptureContext, OR an EventHint.\n * It does not allow mixing them, which could lead to unexpected outcomes, e.g. this is disallowed:\n * { user: { id: '123' }, mechanism: { handled: false } }\n */\n\n/**\n * Adds common information to events.\n *\n * The information includes release and environment from `options`,\n * breadcrumbs and context (extra, tags and user) from the scope.\n *\n * Information that is already present in the event is never overwritten. For\n * nested objects, such as the context, keys are merged.\n *\n * @param event The original event.\n * @param hint May contain additional information about the original exception.\n * @param scope A scope containing event metadata.\n * @returns A new event with more information.\n * @hidden\n */\nfunction prepareEvent(\n  options,\n  event,\n  hint,\n  scope,\n  client,\n  isolationScope,\n) {\n  const { normalizeDepth = 3, normalizeMaxBreadth = 1000 } = options;\n  const prepared = {\n    ...event,\n    event_id: event.event_id || hint.event_id || uuid4(),\n    timestamp: event.timestamp || dateTimestampInSeconds(),\n  };\n  const integrations = hint.integrations || options.integrations.map(i => i.name);\n\n  applyClientOptions(prepared, options);\n  applyIntegrationsMetadata(prepared, integrations);\n\n  if (client) {\n    client.emit('applyFrameMetadata', event);\n  }\n\n  // Only put debug IDs onto frames for error events.\n  if (event.type === undefined) {\n    applyDebugIds(prepared, options.stackParser);\n  }\n\n  // If we have scope given to us, use it as the base for further modifications.\n  // This allows us to prevent unnecessary copying of data if `captureContext` is not provided.\n  const finalScope = getFinalScope(scope, hint.captureContext);\n\n  if (hint.mechanism) {\n    addExceptionMechanism(prepared, hint.mechanism);\n  }\n\n  const clientEventProcessors = client ? client.getEventProcessors() : [];\n\n  // This should be the last thing called, since we want that\n  // {@link Scope.addEventProcessor} gets the finished prepared event.\n  // Merge scope data together\n  const data = getGlobalScope().getScopeData();\n\n  if (isolationScope) {\n    const isolationData = isolationScope.getScopeData();\n    mergeScopeData(data, isolationData);\n  }\n\n  if (finalScope) {\n    const finalScopeData = finalScope.getScopeData();\n    mergeScopeData(data, finalScopeData);\n  }\n\n  const attachments = [...(hint.attachments || []), ...data.attachments];\n  if (attachments.length) {\n    hint.attachments = attachments;\n  }\n\n  applyScopeDataToEvent(prepared, data);\n\n  const eventProcessors = [\n    ...clientEventProcessors,\n    // Run scope event processors _after_ all other processors\n    ...data.eventProcessors,\n  ];\n\n  const result = notifyEventProcessors(eventProcessors, prepared, hint);\n\n  return result.then(evt => {\n    if (evt) {\n      // We apply the debug_meta field only after all event processors have ran, so that if any event processors modified\n      // file names (e.g.the RewriteFrames integration) the filename -> debug ID relationship isn't destroyed.\n      // This should not cause any PII issues, since we're only moving data that is already on the event and not adding\n      // any new data\n      applyDebugMeta(evt);\n    }\n\n    if (typeof normalizeDepth === 'number' && normalizeDepth > 0) {\n      return normalizeEvent(evt, normalizeDepth, normalizeMaxBreadth);\n    }\n    return evt;\n  });\n}\n\n/**\n * Enhances event using the client configuration.\n * It takes care of all \"static\" values like environment, release and `dist`,\n * as well as truncating overly long values.\n *\n * Only exported for tests.\n *\n * @param event event instance to be enhanced\n */\nfunction applyClientOptions(event, options) {\n  const { environment, release, dist, maxValueLength = 250 } = options;\n\n  // empty strings do not make sense for environment, release, and dist\n  // so we handle them the same as if they were not provided\n  event.environment = event.environment || environment || DEFAULT_ENVIRONMENT;\n\n  if (!event.release && release) {\n    event.release = release;\n  }\n\n  if (!event.dist && dist) {\n    event.dist = dist;\n  }\n\n  if (event.message) {\n    event.message = truncate(event.message, maxValueLength);\n  }\n\n  const exception = event.exception && event.exception.values && event.exception.values[0];\n  if (exception && exception.value) {\n    exception.value = truncate(exception.value, maxValueLength);\n  }\n\n  const request = event.request;\n  if (request && request.url) {\n    request.url = truncate(request.url, maxValueLength);\n  }\n}\n\n/**\n * Puts debug IDs into the stack frames of an error event.\n */\nfunction applyDebugIds(event, stackParser) {\n  // Build a map of filename -> debug_id\n  const filenameDebugIdMap = getFilenameToDebugIdMap(stackParser);\n\n  try {\n    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n    event.exception.values.forEach(exception => {\n      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n      exception.stacktrace.frames.forEach(frame => {\n        if (filenameDebugIdMap && frame.filename) {\n          frame.debug_id = filenameDebugIdMap[frame.filename];\n        }\n      });\n    });\n  } catch (e) {\n    // To save bundle size we're just try catching here instead of checking for the existence of all the different objects.\n  }\n}\n\n/**\n * Moves debug IDs from the stack frames of an error event into the debug_meta field.\n */\nfunction applyDebugMeta(event) {\n  // Extract debug IDs and filenames from the stack frames on the event.\n  const filenameDebugIdMap = {};\n  try {\n    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n    event.exception.values.forEach(exception => {\n      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n      exception.stacktrace.frames.forEach(frame => {\n        if (frame.debug_id) {\n          if (frame.abs_path) {\n            filenameDebugIdMap[frame.abs_path] = frame.debug_id;\n          } else if (frame.filename) {\n            filenameDebugIdMap[frame.filename] = frame.debug_id;\n          }\n          delete frame.debug_id;\n        }\n      });\n    });\n  } catch (e) {\n    // To save bundle size we're just try catching here instead of checking for the existence of all the different objects.\n  }\n\n  if (Object.keys(filenameDebugIdMap).length === 0) {\n    return;\n  }\n\n  // Fill debug_meta information\n  event.debug_meta = event.debug_meta || {};\n  event.debug_meta.images = event.debug_meta.images || [];\n  const images = event.debug_meta.images;\n  Object.entries(filenameDebugIdMap).forEach(([filename, debug_id]) => {\n    images.push({\n      type: 'sourcemap',\n      code_file: filename,\n      debug_id,\n    });\n  });\n}\n\n/**\n * This function adds all used integrations to the SDK info in the event.\n * @param event The event that will be filled with all integrations.\n */\nfunction applyIntegrationsMetadata(event, integrationNames) {\n  if (integrationNames.length > 0) {\n    event.sdk = event.sdk || {};\n    event.sdk.integrations = [...(event.sdk.integrations || []), ...integrationNames];\n  }\n}\n\n/**\n * Applies `normalize` function on necessary `Event` attributes to make them safe for serialization.\n * Normalized keys:\n * - `breadcrumbs.data`\n * - `user`\n * - `contexts`\n * - `extra`\n * @param event Event\n * @returns Normalized event\n */\nfunction normalizeEvent(event, depth, maxBreadth) {\n  if (!event) {\n    return null;\n  }\n\n  const normalized = {\n    ...event,\n    ...(event.breadcrumbs && {\n      breadcrumbs: event.breadcrumbs.map(b => ({\n        ...b,\n        ...(b.data && {\n          data: normalize(b.data, depth, maxBreadth),\n        }),\n      })),\n    }),\n    ...(event.user && {\n      user: normalize(event.user, depth, maxBreadth),\n    }),\n    ...(event.contexts && {\n      contexts: normalize(event.contexts, depth, maxBreadth),\n    }),\n    ...(event.extra && {\n      extra: normalize(event.extra, depth, maxBreadth),\n    }),\n  };\n\n  // event.contexts.trace stores information about a Transaction. Similarly,\n  // event.spans[] stores information about child Spans. Given that a\n  // Transaction is conceptually a Span, normalization should apply to both\n  // Transactions and Spans consistently.\n  // For now the decision is to skip normalization of Transactions and Spans,\n  // so this block overwrites the normalized event to add back the original\n  // Transaction information prior to normalization.\n  if (event.contexts && event.contexts.trace && normalized.contexts) {\n    normalized.contexts.trace = event.contexts.trace;\n\n    // event.contexts.trace.data may contain circular/dangerous data so we need to normalize it\n    if (event.contexts.trace.data) {\n      normalized.contexts.trace.data = normalize(event.contexts.trace.data, depth, maxBreadth);\n    }\n  }\n\n  // event.spans[].data may contain circular/dangerous data so we need to normalize it\n  if (event.spans) {\n    normalized.spans = event.spans.map(span => {\n      return {\n        ...span,\n        ...(span.data && {\n          data: normalize(span.data, depth, maxBreadth),\n        }),\n      };\n    });\n  }\n\n  return normalized;\n}\n\nfunction getFinalScope(\n  scope,\n  captureContext,\n) {\n  if (!captureContext) {\n    return scope;\n  }\n\n  const finalScope = scope ? scope.clone() : new Scope();\n  finalScope.update(captureContext);\n  return finalScope;\n}\n\n/**\n * Parse either an `EventHint` directly, or convert a `CaptureContext` to an `EventHint`.\n * This is used to allow to update method signatures that used to accept a `CaptureContext` but should now accept an `EventHint`.\n */\nfunction parseEventHintOrCaptureContext(\n  hint,\n) {\n  if (!hint) {\n    return undefined;\n  }\n\n  // If you pass a Scope or `() => Scope` as CaptureContext, we just return this as captureContext\n  if (hintIsScopeOrFunction(hint)) {\n    return { captureContext: hint };\n  }\n\n  if (hintIsScopeContext(hint)) {\n    return {\n      captureContext: hint,\n    };\n  }\n\n  return hint;\n}\n\nfunction hintIsScopeOrFunction(\n  hint,\n) {\n  return hint instanceof Scope || typeof hint === 'function';\n}\n\nconst captureContextKeys = [\n  'user',\n  'level',\n  'extra',\n  'contexts',\n  'tags',\n  'fingerprint',\n  'requestSession',\n  'propagationContext',\n] ;\n\nfunction hintIsScopeContext(hint) {\n  return Object.keys(hint).some(key => captureContextKeys.includes(key ));\n}\n\nexport { applyClientOptions, applyDebugIds, applyDebugMeta, parseEventHintOrCaptureContext, prepareEvent };\n","import { DEFAULT_ENVIRONMENT } from './constants.js';\nimport { getCurrentScope, getIsolationScope, getClient, withIsolationScope } from './currentScopes.js';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { makeSession, updateSession, closeSession } from './session.js';\nimport { isThenable } from './utils-hoist/is.js';\nimport { logger } from './utils-hoist/logger.js';\nimport { uuid4 } from './utils-hoist/misc.js';\nimport { timestampInSeconds } from './utils-hoist/time.js';\nimport { GLOBAL_OBJ } from './utils-hoist/worldwide.js';\nimport { parseEventHintOrCaptureContext } from './utils/prepareEvent.js';\n\n/**\n * Captures an exception event and sends it to Sentry.\n *\n * @param exception The exception to capture.\n * @param hint Optional additional data to attach to the Sentry event.\n * @returns the id of the captured Sentry event.\n */\nfunction captureException(\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  exception,\n  hint,\n) {\n  return getCurrentScope().captureException(exception, parseEventHintOrCaptureContext(hint));\n}\n\n/**\n * Captures a message event and sends it to Sentry.\n *\n * @param message The message to send to Sentry.\n * @param captureContext Define the level of the message or pass in additional data to attach to the message.\n * @returns the id of the captured message.\n */\nfunction captureMessage(message, captureContext) {\n  // This is necessary to provide explicit scopes upgrade, without changing the original\n  // arity of the `captureMessage(message, level)` method.\n  const level = typeof captureContext === 'string' ? captureContext : undefined;\n  const context = typeof captureContext !== 'string' ? { captureContext } : undefined;\n  return getCurrentScope().captureMessage(message, level, context);\n}\n\n/**\n * Captures a manually created event and sends it to Sentry.\n *\n * @param event The event to send to Sentry.\n * @param hint Optional additional data to attach to the Sentry event.\n * @returns the id of the captured event.\n */\nfunction captureEvent(event, hint) {\n  return getCurrentScope().captureEvent(event, hint);\n}\n\n/**\n * Sets context data with the given name.\n * @param name of the context\n * @param context Any kind of data. This data will be normalized.\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction setContext(name, context) {\n  getIsolationScope().setContext(name, context);\n}\n\n/**\n * Set an object that will be merged sent as extra data with the event.\n * @param extras Extras object to merge into current context.\n */\nfunction setExtras(extras) {\n  getIsolationScope().setExtras(extras);\n}\n\n/**\n * Set key:value that will be sent as extra data with the event.\n * @param key String of extra\n * @param extra Any kind of data. This data will be normalized.\n */\nfunction setExtra(key, extra) {\n  getIsolationScope().setExtra(key, extra);\n}\n\n/**\n * Set an object that will be merged sent as tags data with the event.\n * @param tags Tags context object to merge into current context.\n */\nfunction setTags(tags) {\n  getIsolationScope().setTags(tags);\n}\n\n/**\n * Set key:value that will be sent as tags data with the event.\n *\n * Can also be used to unset a tag, by passing `undefined`.\n *\n * @param key String key of tag\n * @param value Value of tag\n */\nfunction setTag(key, value) {\n  getIsolationScope().setTag(key, value);\n}\n\n/**\n * Updates user context information for future events.\n *\n * @param user User context object to be set in the current context. Pass `null` to unset the user.\n */\nfunction setUser(user) {\n  getIsolationScope().setUser(user);\n}\n\n/**\n * The last error event id of the isolation scope.\n *\n * Warning: This function really returns the last recorded error event id on the current\n * isolation scope. If you call this function after handling a certain error and another error\n * is captured in between, the last one is returned instead of the one you might expect.\n * Also, ids of events that were never sent to Sentry (for example because\n * they were dropped in `beforeSend`) could be returned.\n *\n * @returns The last event id of the isolation scope.\n */\nfunction lastEventId() {\n  return getIsolationScope().lastEventId();\n}\n\n/**\n * Create a cron monitor check in and send it to Sentry.\n *\n * @param checkIn An object that describes a check in.\n * @param upsertMonitorConfig An optional object that describes a monitor config. Use this if you want\n * to create a monitor automatically when sending a check in.\n */\nfunction captureCheckIn(checkIn, upsertMonitorConfig) {\n  const scope = getCurrentScope();\n  const client = getClient();\n  if (!client) {\n    DEBUG_BUILD && logger.warn('Cannot capture check-in. No client defined.');\n  } else if (!client.captureCheckIn) {\n    DEBUG_BUILD && logger.warn('Cannot capture check-in. Client does not support sending check-ins.');\n  } else {\n    return client.captureCheckIn(checkIn, upsertMonitorConfig, scope);\n  }\n\n  return uuid4();\n}\n\n/**\n * Wraps a callback with a cron monitor check in. The check in will be sent to Sentry when the callback finishes.\n *\n * @param monitorSlug The distinct slug of the monitor.\n * @param upsertMonitorConfig An optional object that describes a monitor config. Use this if you want\n * to create a monitor automatically when sending a check in.\n */\nfunction withMonitor(\n  monitorSlug,\n  callback,\n  upsertMonitorConfig,\n) {\n  const checkInId = captureCheckIn({ monitorSlug, status: 'in_progress' }, upsertMonitorConfig);\n  const now = timestampInSeconds();\n\n  function finishCheckIn(status) {\n    captureCheckIn({ monitorSlug, status, checkInId, duration: timestampInSeconds() - now });\n  }\n\n  return withIsolationScope(() => {\n    let maybePromiseResult;\n    try {\n      maybePromiseResult = callback();\n    } catch (e) {\n      finishCheckIn('error');\n      throw e;\n    }\n\n    if (isThenable(maybePromiseResult)) {\n      Promise.resolve(maybePromiseResult).then(\n        () => {\n          finishCheckIn('ok');\n        },\n        e => {\n          finishCheckIn('error');\n          throw e;\n        },\n      );\n    } else {\n      finishCheckIn('ok');\n    }\n\n    return maybePromiseResult;\n  });\n}\n\n/**\n * Call `flush()` on the current client, if there is one. See {@link Client.flush}.\n *\n * @param timeout Maximum time in ms the client should wait to flush its event queue. Omitting this parameter will cause\n * the client to wait until all events are sent before resolving the promise.\n * @returns A promise which resolves to `true` if the queue successfully drains before the timeout, or `false` if it\n * doesn't (or if there's no client defined).\n */\nasync function flush(timeout) {\n  const client = getClient();\n  if (client) {\n    return client.flush(timeout);\n  }\n  DEBUG_BUILD && logger.warn('Cannot flush events. No client defined.');\n  return Promise.resolve(false);\n}\n\n/**\n * Call `close()` on the current client, if there is one. See {@link Client.close}.\n *\n * @param timeout Maximum time in ms the client should wait to flush its event queue before shutting down. Omitting this\n * parameter will cause the client to wait until all events are sent before disabling itself.\n * @returns A promise which resolves to `true` if the queue successfully drains before the timeout, or `false` if it\n * doesn't (or if there's no client defined).\n */\nasync function close(timeout) {\n  const client = getClient();\n  if (client) {\n    return client.close(timeout);\n  }\n  DEBUG_BUILD && logger.warn('Cannot flush events and disable SDK. No client defined.');\n  return Promise.resolve(false);\n}\n\n/**\n * Returns true if Sentry has been properly initialized.\n */\nfunction isInitialized() {\n  return !!getClient();\n}\n\n/** If the SDK is initialized & enabled. */\nfunction isEnabled() {\n  const client = getClient();\n  return !!client && client.getOptions().enabled !== false && !!client.getTransport();\n}\n\n/**\n * Add an event processor.\n * This will be added to the current isolation scope, ensuring any event that is processed in the current execution\n * context will have the processor applied.\n */\nfunction addEventProcessor(callback) {\n  getIsolationScope().addEventProcessor(callback);\n}\n\n/**\n * Start a session on the current isolation scope.\n *\n * @param context (optional) additional properties to be applied to the returned session object\n *\n * @returns the new active session\n */\nfunction startSession(context) {\n  const client = getClient();\n  const isolationScope = getIsolationScope();\n  const currentScope = getCurrentScope();\n\n  const { release, environment = DEFAULT_ENVIRONMENT } = (client && client.getOptions()) || {};\n\n  // Will fetch userAgent if called from browser sdk\n  const { userAgent } = GLOBAL_OBJ.navigator || {};\n\n  const session = makeSession({\n    release,\n    environment,\n    user: currentScope.getUser() || isolationScope.getUser(),\n    ...(userAgent && { userAgent }),\n    ...context,\n  });\n\n  // End existing session if there's one\n  const currentSession = isolationScope.getSession();\n  if (currentSession && currentSession.status === 'ok') {\n    updateSession(currentSession, { status: 'exited' });\n  }\n\n  endSession();\n\n  // Afterwards we set the new session on the scope\n  isolationScope.setSession(session);\n\n  // TODO (v8): Remove this and only use the isolation scope(?).\n  // For v7 though, we can't \"soft-break\" people using getCurrentHub().getScope().setSession()\n  currentScope.setSession(session);\n\n  return session;\n}\n\n/**\n * End the session on the current isolation scope.\n */\nfunction endSession() {\n  const isolationScope = getIsolationScope();\n  const currentScope = getCurrentScope();\n\n  const session = currentScope.getSession() || isolationScope.getSession();\n  if (session) {\n    closeSession(session);\n  }\n  _sendSessionUpdate();\n\n  // the session is over; take it off of the scope\n  isolationScope.setSession();\n\n  // TODO (v8): Remove this and only use the isolation scope(?).\n  // For v7 though, we can't \"soft-break\" people using getCurrentHub().getScope().setSession()\n  currentScope.setSession();\n}\n\n/**\n * Sends the current Session on the scope\n */\nfunction _sendSessionUpdate() {\n  const isolationScope = getIsolationScope();\n  const currentScope = getCurrentScope();\n  const client = getClient();\n  // TODO (v8): Remove currentScope and only use the isolation scope(?).\n  // For v7 though, we can't \"soft-break\" people using getCurrentHub().getScope().setSession()\n  const session = currentScope.getSession() || isolationScope.getSession();\n  if (session && client) {\n    client.captureSession(session);\n  }\n}\n\n/**\n * Sends the current session on the scope to Sentry\n *\n * @param end If set the session will be marked as exited and removed from the scope.\n *            Defaults to `false`.\n */\nfunction captureSession(end = false) {\n  // both send the update and pull the session from the scope\n  if (end) {\n    endSession();\n    return;\n  }\n\n  // only send the update\n  _sendSessionUpdate();\n}\n\nexport { addEventProcessor, captureCheckIn, captureEvent, captureException, captureMessage, captureSession, close, endSession, flush, isEnabled, isInitialized, lastEventId, setContext, setExtra, setExtras, setTag, setTags, setUser, startSession, withMonitor };\n","import { GLOBAL_OBJ, getOriginalFunction, markFunctionWrapped, addNonEnumerableProperty, withScope, addExceptionTypeValue, addExceptionMechanism, captureException } from '@sentry/core';\n\nconst WINDOW = GLOBAL_OBJ ;\n\nlet ignoreOnError = 0;\n\n/**\n * @hidden\n */\nfunction shouldIgnoreOnError() {\n  return ignoreOnError > 0;\n}\n\n/**\n * @hidden\n */\nfunction ignoreNextOnError() {\n  // onerror should trigger before setTimeout\n  ignoreOnError++;\n  setTimeout(() => {\n    ignoreOnError--;\n  });\n}\n\n// eslint-disable-next-line @typescript-eslint/ban-types\n\n/**\n * Instruments the given function and sends an event to Sentry every time the\n * function throws an exception.\n *\n * @param fn A function to wrap. It is generally safe to pass an unbound function, because the returned wrapper always\n * has a correct `this` context.\n * @returns The wrapped function.\n * @hidden\n */\nfunction wrap(\n  fn,\n  options\n\n = {},\n) {\n  // for future readers what this does is wrap a function and then create\n  // a bi-directional wrapping between them.\n  //\n  // example: wrapped = wrap(original);\n  //  original.__sentry_wrapped__ -> wrapped\n  //  wrapped.__sentry_original__ -> original\n\n  function isFunction(fn) {\n    return typeof fn === 'function';\n  }\n\n  if (!isFunction(fn)) {\n    return fn;\n  }\n\n  try {\n    // if we're dealing with a function that was previously wrapped, return\n    // the original wrapper.\n    const wrapper = (fn ).__sentry_wrapped__;\n    if (wrapper) {\n      if (typeof wrapper === 'function') {\n        return wrapper;\n      } else {\n        // If we find that the `__sentry_wrapped__` function is not a function at the time of accessing it, it means\n        // that something messed with it. In that case we want to return the originally passed function.\n        return fn;\n      }\n    }\n\n    // We don't wanna wrap it twice\n    if (getOriginalFunction(fn)) {\n      return fn;\n    }\n  } catch (e) {\n    // Just accessing custom props in some Selenium environments\n    // can cause a \"Permission denied\" exception (see raven-js#495).\n    // Bail on wrapping and return the function as-is (defers to window.onerror).\n    return fn;\n  }\n\n  // Wrap the function itself\n  // It is important that `sentryWrapped` is not an arrow function to preserve the context of `this`\n  const sentryWrapped = function ( ...args) {\n    try {\n      // Also wrap arguments that are themselves functions\n      const wrappedArguments = args.map(arg => wrap(arg, options));\n\n      // Attempt to invoke user-land function\n      // NOTE: If you are a Sentry user, and you are seeing this stack frame, it\n      //       means the sentry.javascript SDK caught an error invoking your application code. This\n      //       is expected behavior and NOT indicative of a bug with sentry.javascript.\n      return fn.apply(this, wrappedArguments);\n    } catch (ex) {\n      ignoreNextOnError();\n\n      withScope(scope => {\n        scope.addEventProcessor(event => {\n          if (options.mechanism) {\n            addExceptionTypeValue(event, undefined, undefined);\n            addExceptionMechanism(event, options.mechanism);\n          }\n\n          event.extra = {\n            ...event.extra,\n            arguments: args,\n          };\n\n          return event;\n        });\n\n        captureException(ex);\n      });\n\n      throw ex;\n    }\n  } ;\n\n  // Wrap the wrapped function in a proxy, to ensure any other properties of the original function remain available\n  try {\n    for (const property in fn) {\n      if (Object.prototype.hasOwnProperty.call(fn, property)) {\n        sentryWrapped[property ] = fn[property ];\n      }\n    }\n  } catch (e2) {\n    // Accessing some objects may throw\n    // ref: https://github.com/getsentry/sentry-javascript/issues/1168\n  }\n\n  // Signal that this function has been wrapped/filled already\n  // for both debugging and to prevent it to being wrapped/filled twice\n  markFunctionWrapped(sentryWrapped, fn);\n\n  addNonEnumerableProperty(fn, '__sentry_wrapped__', sentryWrapped);\n\n  // Restore original function name (not all browsers allow that)\n  try {\n    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n    const descriptor = Object.getOwnPropertyDescriptor(sentryWrapped, 'name');\n    if (descriptor.configurable) {\n      Object.defineProperty(sentryWrapped, 'name', {\n        get() {\n          return fn.name;\n        },\n      });\n    }\n  } catch (e3) {\n    // This may throw if e.g. the descriptor does not exist, or a browser does not allow redefining `name`.\n    // to save some bytes we simply try-catch this\n  }\n\n  return sentryWrapped;\n}\n\nexport { WINDOW, ignoreNextOnError, shouldIgnoreOnError, wrap };\n","import { addClickKeypressInstrumentationHandler, addXhrInstrumentationHandler, addHistoryInstrumentationHandler, SENTRY_XHR_DATA_KEY } from '@sentry-internal/browser-utils';\nimport { defineIntegration, addConsoleInstrumentationHandler, addFetchInstrumentationHandler, getClient, addBreadcrumb, getEventDescription, logger, htmlTreeAsString, getComponentName, severityLevelFromString, safeJoin, getBreadcrumbLogLevelFromHttpStatusCode, parseUrl } from '@sentry/core';\nimport { DEBUG_BUILD } from '../debug-build.js';\nimport { WINDOW } from '../helpers.js';\n\n/* eslint-disable max-lines */\n\n\n/** maxStringLength gets capped to prevent 100 breadcrumbs exceeding 1MB event payload size */\nconst MAX_ALLOWED_STRING_LENGTH = 1024;\n\nconst INTEGRATION_NAME = 'Breadcrumbs';\n\nconst _breadcrumbsIntegration = ((options = {}) => {\n  const _options = {\n    console: true,\n    dom: true,\n    fetch: true,\n    history: true,\n    sentry: true,\n    xhr: true,\n    ...options,\n  };\n\n  return {\n    name: INTEGRATION_NAME,\n    setup(client) {\n      if (_options.console) {\n        addConsoleInstrumentationHandler(_getConsoleBreadcrumbHandler(client));\n      }\n      if (_options.dom) {\n        addClickKeypressInstrumentationHandler(_getDomBreadcrumbHandler(client, _options.dom));\n      }\n      if (_options.xhr) {\n        addXhrInstrumentationHandler(_getXhrBreadcrumbHandler(client));\n      }\n      if (_options.fetch) {\n        addFetchInstrumentationHandler(_getFetchBreadcrumbHandler(client));\n      }\n      if (_options.history) {\n        addHistoryInstrumentationHandler(_getHistoryBreadcrumbHandler(client));\n      }\n      if (_options.sentry) {\n        client.on('beforeSendEvent', _getSentryBreadcrumbHandler(client));\n      }\n    },\n  };\n}) ;\n\nconst breadcrumbsIntegration = defineIntegration(_breadcrumbsIntegration);\n\n/**\n * Adds a breadcrumb for Sentry events or transactions if this option is enabled.\n */\nfunction _getSentryBreadcrumbHandler(client) {\n  return function addSentryBreadcrumb(event) {\n    if (getClient() !== client) {\n      return;\n    }\n\n    addBreadcrumb(\n      {\n        category: `sentry.${event.type === 'transaction' ? 'transaction' : 'event'}`,\n        event_id: event.event_id,\n        level: event.level,\n        message: getEventDescription(event),\n      },\n      {\n        event,\n      },\n    );\n  };\n}\n\n/**\n * A HOC that creates a function that creates breadcrumbs from DOM API calls.\n * This is a HOC so that we get access to dom options in the closure.\n */\nfunction _getDomBreadcrumbHandler(\n  client,\n  dom,\n) {\n  return function _innerDomBreadcrumb(handlerData) {\n    if (getClient() !== client) {\n      return;\n    }\n\n    let target;\n    let componentName;\n    let keyAttrs = typeof dom === 'object' ? dom.serializeAttribute : undefined;\n\n    let maxStringLength =\n      typeof dom === 'object' && typeof dom.maxStringLength === 'number' ? dom.maxStringLength : undefined;\n    if (maxStringLength && maxStringLength > MAX_ALLOWED_STRING_LENGTH) {\n      DEBUG_BUILD &&\n        logger.warn(\n          `\\`dom.maxStringLength\\` cannot exceed ${MAX_ALLOWED_STRING_LENGTH}, but a value of ${maxStringLength} was configured. Sentry will use ${MAX_ALLOWED_STRING_LENGTH} instead.`,\n        );\n      maxStringLength = MAX_ALLOWED_STRING_LENGTH;\n    }\n\n    if (typeof keyAttrs === 'string') {\n      keyAttrs = [keyAttrs];\n    }\n\n    // Accessing event.target can throw (see getsentry/raven-js#838, #768)\n    try {\n      const event = handlerData.event ;\n      const element = _isEvent(event) ? event.target : event;\n\n      target = htmlTreeAsString(element, { keyAttrs, maxStringLength });\n      componentName = getComponentName(element);\n    } catch (e) {\n      target = '<unknown>';\n    }\n\n    if (target.length === 0) {\n      return;\n    }\n\n    const breadcrumb = {\n      category: `ui.${handlerData.name}`,\n      message: target,\n    };\n\n    if (componentName) {\n      breadcrumb.data = { 'ui.component_name': componentName };\n    }\n\n    addBreadcrumb(breadcrumb, {\n      event: handlerData.event,\n      name: handlerData.name,\n      global: handlerData.global,\n    });\n  };\n}\n\n/**\n * Creates breadcrumbs from console API calls\n */\nfunction _getConsoleBreadcrumbHandler(client) {\n  return function _consoleBreadcrumb(handlerData) {\n    if (getClient() !== client) {\n      return;\n    }\n\n    const breadcrumb = {\n      category: 'console',\n      data: {\n        arguments: handlerData.args,\n        logger: 'console',\n      },\n      level: severityLevelFromString(handlerData.level),\n      message: safeJoin(handlerData.args, ' '),\n    };\n\n    if (handlerData.level === 'assert') {\n      if (handlerData.args[0] === false) {\n        breadcrumb.message = `Assertion failed: ${safeJoin(handlerData.args.slice(1), ' ') || 'console.assert'}`;\n        breadcrumb.data.arguments = handlerData.args.slice(1);\n      } else {\n        // Don't capture a breadcrumb for passed assertions\n        return;\n      }\n    }\n\n    addBreadcrumb(breadcrumb, {\n      input: handlerData.args,\n      level: handlerData.level,\n    });\n  };\n}\n\n/**\n * Creates breadcrumbs from XHR API calls\n */\nfunction _getXhrBreadcrumbHandler(client) {\n  return function _xhrBreadcrumb(handlerData) {\n    if (getClient() !== client) {\n      return;\n    }\n\n    const { startTimestamp, endTimestamp } = handlerData;\n\n    const sentryXhrData = handlerData.xhr[SENTRY_XHR_DATA_KEY];\n\n    // We only capture complete, non-sentry requests\n    if (!startTimestamp || !endTimestamp || !sentryXhrData) {\n      return;\n    }\n\n    const { method, url, status_code, body } = sentryXhrData;\n\n    const data = {\n      method,\n      url,\n      status_code,\n    };\n\n    const hint = {\n      xhr: handlerData.xhr,\n      input: body,\n      startTimestamp,\n      endTimestamp,\n    };\n\n    const level = getBreadcrumbLogLevelFromHttpStatusCode(status_code);\n\n    addBreadcrumb(\n      {\n        category: 'xhr',\n        data,\n        type: 'http',\n        level,\n      },\n      hint,\n    );\n  };\n}\n\n/**\n * Creates breadcrumbs from fetch API calls\n */\nfunction _getFetchBreadcrumbHandler(client) {\n  return function _fetchBreadcrumb(handlerData) {\n    if (getClient() !== client) {\n      return;\n    }\n\n    const { startTimestamp, endTimestamp } = handlerData;\n\n    // We only capture complete fetch requests\n    if (!endTimestamp) {\n      return;\n    }\n\n    if (handlerData.fetchData.url.match(/sentry_key/) && handlerData.fetchData.method === 'POST') {\n      // We will not create breadcrumbs for fetch requests that contain `sentry_key` (internal sentry requests)\n      return;\n    }\n\n    if (handlerData.error) {\n      const data = handlerData.fetchData;\n      const hint = {\n        data: handlerData.error,\n        input: handlerData.args,\n        startTimestamp,\n        endTimestamp,\n      };\n\n      addBreadcrumb(\n        {\n          category: 'fetch',\n          data,\n          level: 'error',\n          type: 'http',\n        },\n        hint,\n      );\n    } else {\n      const response = handlerData.response ;\n      const data = {\n        ...handlerData.fetchData,\n        status_code: response && response.status,\n      };\n      const hint = {\n        input: handlerData.args,\n        response,\n        startTimestamp,\n        endTimestamp,\n      };\n      const level = getBreadcrumbLogLevelFromHttpStatusCode(data.status_code);\n\n      addBreadcrumb(\n        {\n          category: 'fetch',\n          data,\n          type: 'http',\n          level,\n        },\n        hint,\n      );\n    }\n  };\n}\n\n/**\n * Creates breadcrumbs from history API calls\n */\nfunction _getHistoryBreadcrumbHandler(client) {\n  return function _historyBreadcrumb(handlerData) {\n    if (getClient() !== client) {\n      return;\n    }\n\n    let from = handlerData.from;\n    let to = handlerData.to;\n    const parsedLoc = parseUrl(WINDOW.location.href);\n    let parsedFrom = from ? parseUrl(from) : undefined;\n    const parsedTo = parseUrl(to);\n\n    // Initial pushState doesn't provide `from` information\n    if (!parsedFrom || !parsedFrom.path) {\n      parsedFrom = parsedLoc;\n    }\n\n    // Use only the path component of the URL if the URL matches the current\n    // document (almost all the time when using pushState)\n    if (parsedLoc.protocol === parsedTo.protocol && parsedLoc.host === parsedTo.host) {\n      to = parsedTo.relative;\n    }\n    if (parsedLoc.protocol === parsedFrom.protocol && parsedLoc.host === parsedFrom.host) {\n      from = parsedFrom.relative;\n    }\n\n    addBreadcrumb({\n      category: 'navigation',\n      data: {\n        from,\n        to,\n      },\n    });\n  };\n}\n\nfunction _isEvent(event) {\n  return !!event && !!(event ).target;\n}\n\nexport { breadcrumbsIntegration };\n","import { GLOBAL_OBJ } from '../worldwide.js';\nimport { addHandler, maybeInstrument, triggerHandlers } from './handlers.js';\n\nlet _oldOnErrorHandler = null;\n\n/**\n * Add an instrumentation handler for when an error is captured by the global error handler.\n *\n * Use at your own risk, this might break without changelog notice, only used internally.\n * @hidden\n */\nfunction addGlobalErrorInstrumentationHandler(handler) {\n  const type = 'error';\n  addHandler(type, handler);\n  maybeInstrument(type, instrumentError);\n}\n\nfunction instrumentError() {\n  _oldOnErrorHandler = GLOBAL_OBJ.onerror;\n\n  GLOBAL_OBJ.onerror = function (\n    msg,\n    url,\n    line,\n    column,\n    error,\n  ) {\n    const handlerData = {\n      column,\n      error,\n      line,\n      msg,\n      url,\n    };\n    triggerHandlers('error', handlerData);\n\n    if (_oldOnErrorHandler && !_oldOnErrorHandler.__SENTRY_LOADER__) {\n      // eslint-disable-next-line prefer-rest-params\n      return _oldOnErrorHandler.apply(this, arguments);\n    }\n\n    return false;\n  };\n\n  GLOBAL_OBJ.onerror.__SENTRY_INSTRUMENTED__ = true;\n}\n\nexport { addGlobalErrorInstrumentationHandler };\n","import { GLOBAL_OBJ } from '../worldwide.js';\nimport { addHandler, maybeInstrument, triggerHandlers } from './handlers.js';\n\nlet _oldOnUnhandledRejectionHandler = null;\n\n/**\n * Add an instrumentation handler for when an unhandled promise rejection is captured.\n *\n * Use at your own risk, this might break without changelog notice, only used internally.\n * @hidden\n */\nfunction addGlobalUnhandledRejectionInstrumentationHandler(\n  handler,\n) {\n  const type = 'unhandledrejection';\n  addHandler(type, handler);\n  maybeInstrument(type, instrumentUnhandledRejection);\n}\n\nfunction instrumentUnhandledRejection() {\n  _oldOnUnhandledRejectionHandler = GLOBAL_OBJ.onunhandledrejection;\n\n  GLOBAL_OBJ.onunhandledrejection = function (e) {\n    const handlerData = e;\n    triggerHandlers('unhandledrejection', handlerData);\n\n    if (_oldOnUnhandledRejectionHandler && !_oldOnUnhandledRejectionHandler.__SENTRY_LOADER__) {\n      // eslint-disable-next-line prefer-rest-params\n      return _oldOnUnhandledRejectionHandler.apply(this, arguments);\n    }\n\n    return true;\n  };\n\n  GLOBAL_OBJ.onunhandledrejection.__SENTRY_INSTRUMENTED__ = true;\n}\n\nexport { addGlobalUnhandledRejectionInstrumentationHandler };\n","import { addExceptionMechanism, resolvedSyncPromise, isErrorEvent, isDOMError, isDOMException, addExceptionTypeValue, isError, isPlainObject, isEvent, isParameterizedString, getClient, normalizeToSize, extractExceptionKeysForMessage } from '@sentry/core';\n\n/**\n * This function creates an exception from a JavaScript Error\n */\nfunction exceptionFromError(stackParser, ex) {\n  // Get the frames first since Opera can lose the stack if we touch anything else first\n  const frames = parseStackFrames(stackParser, ex);\n\n  const exception = {\n    type: extractType(ex),\n    value: extractMessage(ex),\n  };\n\n  if (frames.length) {\n    exception.stacktrace = { frames };\n  }\n\n  if (exception.type === undefined && exception.value === '') {\n    exception.value = 'Unrecoverable error caught';\n  }\n\n  return exception;\n}\n\nfunction eventFromPlainObject(\n  stackParser,\n  exception,\n  syntheticException,\n  isUnhandledRejection,\n) {\n  const client = getClient();\n  const normalizeDepth = client && client.getOptions().normalizeDepth;\n\n  // If we can, we extract an exception from the object properties\n  const errorFromProp = getErrorPropertyFromObject(exception);\n\n  const extra = {\n    __serialized__: normalizeToSize(exception, normalizeDepth),\n  };\n\n  if (errorFromProp) {\n    return {\n      exception: {\n        values: [exceptionFromError(stackParser, errorFromProp)],\n      },\n      extra,\n    };\n  }\n\n  const event = {\n    exception: {\n      values: [\n        {\n          type: isEvent(exception) ? exception.constructor.name : isUnhandledRejection ? 'UnhandledRejection' : 'Error',\n          value: getNonErrorObjectExceptionValue(exception, { isUnhandledRejection }),\n        } ,\n      ],\n    },\n    extra,\n  } ;\n\n  if (syntheticException) {\n    const frames = parseStackFrames(stackParser, syntheticException);\n    if (frames.length) {\n      // event.exception.values[0] has been set above\n      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n      event.exception.values[0].stacktrace = { frames };\n    }\n  }\n\n  return event;\n}\n\nfunction eventFromError(stackParser, ex) {\n  return {\n    exception: {\n      values: [exceptionFromError(stackParser, ex)],\n    },\n  };\n}\n\n/** Parses stack frames from an error */\nfunction parseStackFrames(\n  stackParser,\n  ex,\n) {\n  // Access and store the stacktrace property before doing ANYTHING\n  // else to it because Opera is not very good at providing it\n  // reliably in other circumstances.\n  const stacktrace = ex.stacktrace || ex.stack || '';\n\n  const skipLines = getSkipFirstStackStringLines(ex);\n  const framesToPop = getPopFirstTopFrames(ex);\n\n  try {\n    return stackParser(stacktrace, skipLines, framesToPop);\n  } catch (e) {\n    // no-empty\n  }\n\n  return [];\n}\n\n// Based on our own mapping pattern - https://github.com/getsentry/sentry/blob/9f08305e09866c8bd6d0c24f5b0aabdd7dd6c59c/src/sentry/lang/javascript/errormapping.py#L83-L108\nconst reactMinifiedRegexp = /Minified React error #\\d+;/i;\n\n/**\n * Certain known React errors contain links that would be falsely\n * parsed as frames. This function check for these errors and\n * returns number of the stack string lines to skip.\n */\nfunction getSkipFirstStackStringLines(ex) {\n  if (ex && reactMinifiedRegexp.test(ex.message)) {\n    return 1;\n  }\n\n  return 0;\n}\n\n/**\n * If error has `framesToPop` property, it means that the\n * creator tells us the first x frames will be useless\n * and should be discarded. Typically error from wrapper function\n * which don't point to the actual location in the developer's code.\n *\n * Example: https://github.com/zertosh/invariant/blob/master/invariant.js#L46\n */\nfunction getPopFirstTopFrames(ex) {\n  if (typeof ex.framesToPop === 'number') {\n    return ex.framesToPop;\n  }\n\n  return 0;\n}\n\n// https://developer.mozilla.org/en-US/docs/WebAssembly/JavaScript_interface/Exception\n// @ts-expect-error - WebAssembly.Exception is a valid class\nfunction isWebAssemblyException(exception) {\n  // Check for support\n  // @ts-expect-error - WebAssembly.Exception is a valid class\n  if (typeof WebAssembly !== 'undefined' && typeof WebAssembly.Exception !== 'undefined') {\n    // @ts-expect-error - WebAssembly.Exception is a valid class\n    return exception instanceof WebAssembly.Exception;\n  } else {\n    return false;\n  }\n}\n\n/**\n * Extracts from errors what we use as the exception `type` in error events.\n *\n * Usually, this is the `name` property on Error objects but WASM errors need to be treated differently.\n */\nfunction extractType(ex) {\n  const name = ex && ex.name;\n\n  // The name for WebAssembly.Exception Errors needs to be extracted differently.\n  // Context: https://github.com/getsentry/sentry-javascript/issues/13787\n  if (!name && isWebAssemblyException(ex)) {\n    // Emscripten sets array[type, message] to the \"message\" property on the WebAssembly.Exception object\n    const hasTypeInMessage = ex.message && Array.isArray(ex.message) && ex.message.length == 2;\n    return hasTypeInMessage ? ex.message[0] : 'WebAssembly.Exception';\n  }\n\n  return name;\n}\n\n/**\n * There are cases where stacktrace.message is an Event object\n * https://github.com/getsentry/sentry-javascript/issues/1949\n * In this specific case we try to extract stacktrace.message.error.message\n */\nfunction extractMessage(ex) {\n  const message = ex && ex.message;\n\n  if (!message) {\n    return 'No error message';\n  }\n\n  if (message.error && typeof message.error.message === 'string') {\n    return message.error.message;\n  }\n\n  // Emscripten sets array[type, message] to the \"message\" property on the WebAssembly.Exception object\n  if (isWebAssemblyException(ex) && Array.isArray(ex.message) && ex.message.length == 2) {\n    return ex.message[1];\n  }\n\n  return message;\n}\n\n/**\n * Creates an {@link Event} from all inputs to `captureException` and non-primitive inputs to `captureMessage`.\n * @hidden\n */\nfunction eventFromException(\n  stackParser,\n  exception,\n  hint,\n  attachStacktrace,\n) {\n  const syntheticException = (hint && hint.syntheticException) || undefined;\n  const event = eventFromUnknownInput(stackParser, exception, syntheticException, attachStacktrace);\n  addExceptionMechanism(event); // defaults to { type: 'generic', handled: true }\n  event.level = 'error';\n  if (hint && hint.event_id) {\n    event.event_id = hint.event_id;\n  }\n  return resolvedSyncPromise(event);\n}\n\n/**\n * Builds and Event from a Message\n * @hidden\n */\nfunction eventFromMessage(\n  stackParser,\n  message,\n  level = 'info',\n  hint,\n  attachStacktrace,\n) {\n  const syntheticException = (hint && hint.syntheticException) || undefined;\n  const event = eventFromString(stackParser, message, syntheticException, attachStacktrace);\n  event.level = level;\n  if (hint && hint.event_id) {\n    event.event_id = hint.event_id;\n  }\n  return resolvedSyncPromise(event);\n}\n\n/**\n * @hidden\n */\nfunction eventFromUnknownInput(\n  stackParser,\n  exception,\n  syntheticException,\n  attachStacktrace,\n  isUnhandledRejection,\n) {\n  let event;\n\n  if (isErrorEvent(exception ) && (exception ).error) {\n    // If it is an ErrorEvent with `error` property, extract it to get actual Error\n    const errorEvent = exception ;\n    return eventFromError(stackParser, errorEvent.error );\n  }\n\n  // If it is a `DOMError` (which is a legacy API, but still supported in some browsers) then we just extract the name\n  // and message, as it doesn't provide anything else. According to the spec, all `DOMExceptions` should also be\n  // `Error`s, but that's not the case in IE11, so in that case we treat it the same as we do a `DOMError`.\n  //\n  // https://developer.mozilla.org/en-US/docs/Web/API/DOMError\n  // https://developer.mozilla.org/en-US/docs/Web/API/DOMException\n  // https://webidl.spec.whatwg.org/#es-DOMException-specialness\n  if (isDOMError(exception) || isDOMException(exception )) {\n    const domException = exception ;\n\n    if ('stack' in (exception )) {\n      event = eventFromError(stackParser, exception );\n    } else {\n      const name = domException.name || (isDOMError(domException) ? 'DOMError' : 'DOMException');\n      const message = domException.message ? `${name}: ${domException.message}` : name;\n      event = eventFromString(stackParser, message, syntheticException, attachStacktrace);\n      addExceptionTypeValue(event, message);\n    }\n    if ('code' in domException) {\n      // eslint-disable-next-line deprecation/deprecation\n      event.tags = { ...event.tags, 'DOMException.code': `${domException.code}` };\n    }\n\n    return event;\n  }\n  if (isError(exception)) {\n    // we have a real Error object, do nothing\n    return eventFromError(stackParser, exception);\n  }\n  if (isPlainObject(exception) || isEvent(exception)) {\n    // If it's a plain object or an instance of `Event` (the built-in JS kind, not this SDK's `Event` type), serialize\n    // it manually. This will allow us to group events based on top-level keys which is much better than creating a new\n    // group on any key/value change.\n    const objectException = exception ;\n    event = eventFromPlainObject(stackParser, objectException, syntheticException, isUnhandledRejection);\n    addExceptionMechanism(event, {\n      synthetic: true,\n    });\n    return event;\n  }\n\n  // If none of previous checks were valid, then it means that it's not:\n  // - an instance of DOMError\n  // - an instance of DOMException\n  // - an instance of Event\n  // - an instance of Error\n  // - a valid ErrorEvent (one with an error property)\n  // - a plain Object\n  //\n  // So bail out and capture it as a simple message:\n  event = eventFromString(stackParser, exception , syntheticException, attachStacktrace);\n  addExceptionTypeValue(event, `${exception}`, undefined);\n  addExceptionMechanism(event, {\n    synthetic: true,\n  });\n\n  return event;\n}\n\nfunction eventFromString(\n  stackParser,\n  message,\n  syntheticException,\n  attachStacktrace,\n) {\n  const event = {};\n\n  if (attachStacktrace && syntheticException) {\n    const frames = parseStackFrames(stackParser, syntheticException);\n    if (frames.length) {\n      event.exception = {\n        values: [{ value: message, stacktrace: { frames } }],\n      };\n    }\n  }\n\n  if (isParameterizedString(message)) {\n    const { __sentry_template_string__, __sentry_template_values__ } = message;\n\n    event.logentry = {\n      message: __sentry_template_string__,\n      params: __sentry_template_values__,\n    };\n    return event;\n  }\n\n  event.message = message;\n  return event;\n}\n\nfunction getNonErrorObjectExceptionValue(\n  exception,\n  { isUnhandledRejection },\n) {\n  const keys = extractExceptionKeysForMessage(exception);\n  const captureType = isUnhandledRejection ? 'promise rejection' : 'exception';\n\n  // Some ErrorEvent instances do not have an `error` property, which is why they are not handled before\n  // We still want to try to get a decent message for these cases\n  if (isErrorEvent(exception)) {\n    return `Event \\`ErrorEvent\\` captured as ${captureType} with message \\`${exception.message}\\``;\n  }\n\n  if (isEvent(exception)) {\n    const className = getObjectClassName(exception);\n    return `Event \\`${className}\\` (type=${exception.type}) captured as ${captureType}`;\n  }\n\n  return `Object captured as ${captureType} with keys: ${keys}`;\n}\n\nfunction getObjectClassName(obj) {\n  try {\n    const prototype = Object.getPrototypeOf(obj);\n    return prototype ? prototype.constructor.name : undefined;\n  } catch (e) {\n    // ignore errors here\n  }\n}\n\n/** If a plain object has a property that is an `Error`, return this error. */\nfunction getErrorPropertyFromObject(obj) {\n  for (const prop in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, prop)) {\n      const value = obj[prop];\n      if (value instanceof Error) {\n        return value;\n      }\n    }\n  }\n\n  return undefined;\n}\n\nexport { eventFromException, eventFromMessage, eventFromUnknownInput, exceptionFromError, extractMessage, extractType };\n","import { defineIntegration, addGlobalErrorInstrumentationHandler, getClient, captureEvent, addGlobalUnhandledRejectionInstrumentationHandler, isPrimitive, isString, getLocationHref, UNKNOWN_FUNCTION, logger } from '@sentry/core';\nimport { DEBUG_BUILD } from '../debug-build.js';\nimport { eventFromUnknownInput } from '../eventbuilder.js';\nimport { shouldIgnoreOnError } from '../helpers.js';\n\nconst INTEGRATION_NAME = 'GlobalHandlers';\n\nconst _globalHandlersIntegration = ((options = {}) => {\n  const _options = {\n    onerror: true,\n    onunhandledrejection: true,\n    ...options,\n  };\n\n  return {\n    name: INTEGRATION_NAME,\n    setupOnce() {\n      Error.stackTraceLimit = 50;\n    },\n    setup(client) {\n      if (_options.onerror) {\n        _installGlobalOnErrorHandler(client);\n        globalHandlerLog('onerror');\n      }\n      if (_options.onunhandledrejection) {\n        _installGlobalOnUnhandledRejectionHandler(client);\n        globalHandlerLog('onunhandledrejection');\n      }\n    },\n  };\n}) ;\n\nconst globalHandlersIntegration = defineIntegration(_globalHandlersIntegration);\n\nfunction _installGlobalOnErrorHandler(client) {\n  addGlobalErrorInstrumentationHandler(data => {\n    const { stackParser, attachStacktrace } = getOptions();\n\n    if (getClient() !== client || shouldIgnoreOnError()) {\n      return;\n    }\n\n    const { msg, url, line, column, error } = data;\n\n    const event = _enhanceEventWithInitialFrame(\n      eventFromUnknownInput(stackParser, error || msg, undefined, attachStacktrace, false),\n      url,\n      line,\n      column,\n    );\n\n    event.level = 'error';\n\n    captureEvent(event, {\n      originalException: error,\n      mechanism: {\n        handled: false,\n        type: 'onerror',\n      },\n    });\n  });\n}\n\nfunction _installGlobalOnUnhandledRejectionHandler(client) {\n  addGlobalUnhandledRejectionInstrumentationHandler(e => {\n    const { stackParser, attachStacktrace } = getOptions();\n\n    if (getClient() !== client || shouldIgnoreOnError()) {\n      return;\n    }\n\n    const error = _getUnhandledRejectionError(e );\n\n    const event = isPrimitive(error)\n      ? _eventFromRejectionWithPrimitive(error)\n      : eventFromUnknownInput(stackParser, error, undefined, attachStacktrace, true);\n\n    event.level = 'error';\n\n    captureEvent(event, {\n      originalException: error,\n      mechanism: {\n        handled: false,\n        type: 'onunhandledrejection',\n      },\n    });\n  });\n}\n\nfunction _getUnhandledRejectionError(error) {\n  if (isPrimitive(error)) {\n    return error;\n  }\n\n  // dig the object of the rejection out of known event types\n  try {\n\n    // PromiseRejectionEvents store the object of the rejection under 'reason'\n    // see https://developer.mozilla.org/en-US/docs/Web/API/PromiseRejectionEvent\n    if ('reason' in (error )) {\n      return (error ).reason;\n    }\n\n    // something, somewhere, (likely a browser extension) effectively casts PromiseRejectionEvents\n    // to CustomEvents, moving the `promise` and `reason` attributes of the PRE into\n    // the CustomEvent's `detail` attribute, since they're not part of CustomEvent's spec\n    // see https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent and\n    // https://github.com/getsentry/sentry-javascript/issues/2380\n    if ('detail' in (error ) && 'reason' in (error ).detail) {\n      return (error ).detail.reason;\n    }\n  } catch (e2) {} // eslint-disable-line no-empty\n\n  return error;\n}\n\n/**\n * Create an event from a promise rejection where the `reason` is a primitive.\n *\n * @param reason: The `reason` property of the promise rejection\n * @returns An Event object with an appropriate `exception` value\n */\nfunction _eventFromRejectionWithPrimitive(reason) {\n  return {\n    exception: {\n      values: [\n        {\n          type: 'UnhandledRejection',\n          // String() is needed because the Primitive type includes symbols (which can't be automatically stringified)\n          value: `Non-Error promise rejection captured with value: ${String(reason)}`,\n        },\n      ],\n    },\n  };\n}\n\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction _enhanceEventWithInitialFrame(event, url, line, column) {\n  // event.exception\n  const e = (event.exception = event.exception || {});\n  // event.exception.values\n  const ev = (e.values = e.values || []);\n  // event.exception.values[0]\n  const ev0 = (ev[0] = ev[0] || {});\n  // event.exception.values[0].stacktrace\n  const ev0s = (ev0.stacktrace = ev0.stacktrace || {});\n  // event.exception.values[0].stacktrace.frames\n  const ev0sf = (ev0s.frames = ev0s.frames || []);\n\n  const colno = isNaN(parseInt(column, 10)) ? undefined : column;\n  const lineno = isNaN(parseInt(line, 10)) ? undefined : line;\n  const filename = isString(url) && url.length > 0 ? url : getLocationHref();\n\n  // event.exception.values[0].stacktrace.frames\n  if (ev0sf.length === 0) {\n    ev0sf.push({\n      colno,\n      filename,\n      function: UNKNOWN_FUNCTION,\n      in_app: true,\n      lineno,\n    });\n  }\n\n  return event;\n}\n\nfunction globalHandlerLog(type) {\n  DEBUG_BUILD && logger.log(`Global Handler attached: ${type}`);\n}\n\nfunction getOptions() {\n  const client = getClient();\n  const options = (client && client.getOptions()) || {\n    stackParser: () => [],\n    attachStacktrace: false,\n  };\n  return options;\n}\n\nexport { globalHandlersIntegration };\n","import { isInstanceOf } from './is.js';\nimport { truncate } from './string.js';\n\n/**\n * Creates exceptions inside `event.exception.values` for errors that are nested on properties based on the `key` parameter.\n */\nfunction applyAggregateErrorsToEvent(\n  exceptionFromErrorImplementation,\n  parser,\n  maxValueLimit = 250,\n  key,\n  limit,\n  event,\n  hint,\n) {\n  if (!event.exception || !event.exception.values || !hint || !isInstanceOf(hint.originalException, Error)) {\n    return;\n  }\n\n  // Generally speaking the last item in `event.exception.values` is the exception originating from the original Error\n  const originalException =\n    event.exception.values.length > 0 ? event.exception.values[event.exception.values.length - 1] : undefined;\n\n  // We only create exception grouping if there is an exception in the event.\n  if (originalException) {\n    event.exception.values = truncateAggregateExceptions(\n      aggregateExceptionsFromError(\n        exceptionFromErrorImplementation,\n        parser,\n        limit,\n        hint.originalException ,\n        key,\n        event.exception.values,\n        originalException,\n        0,\n      ),\n      maxValueLimit,\n    );\n  }\n}\n\nfunction aggregateExceptionsFromError(\n  exceptionFromErrorImplementation,\n  parser,\n  limit,\n  error,\n  key,\n  prevExceptions,\n  exception,\n  exceptionId,\n) {\n  if (prevExceptions.length >= limit + 1) {\n    return prevExceptions;\n  }\n\n  let newExceptions = [...prevExceptions];\n\n  // Recursively call this function in order to walk down a chain of errors\n  if (isInstanceOf(error[key], Error)) {\n    applyExceptionGroupFieldsForParentException(exception, exceptionId);\n    const newException = exceptionFromErrorImplementation(parser, error[key]);\n    const newExceptionId = newExceptions.length;\n    applyExceptionGroupFieldsForChildException(newException, key, newExceptionId, exceptionId);\n    newExceptions = aggregateExceptionsFromError(\n      exceptionFromErrorImplementation,\n      parser,\n      limit,\n      error[key],\n      key,\n      [newException, ...newExceptions],\n      newException,\n      newExceptionId,\n    );\n  }\n\n  // This will create exception grouping for AggregateErrors\n  // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/AggregateError\n  if (Array.isArray(error.errors)) {\n    error.errors.forEach((childError, i) => {\n      if (isInstanceOf(childError, Error)) {\n        applyExceptionGroupFieldsForParentException(exception, exceptionId);\n        const newException = exceptionFromErrorImplementation(parser, childError);\n        const newExceptionId = newExceptions.length;\n        applyExceptionGroupFieldsForChildException(newException, `errors[${i}]`, newExceptionId, exceptionId);\n        newExceptions = aggregateExceptionsFromError(\n          exceptionFromErrorImplementation,\n          parser,\n          limit,\n          childError,\n          key,\n          [newException, ...newExceptions],\n          newException,\n          newExceptionId,\n        );\n      }\n    });\n  }\n\n  return newExceptions;\n}\n\nfunction applyExceptionGroupFieldsForParentException(exception, exceptionId) {\n  // Don't know if this default makes sense. The protocol requires us to set these values so we pick *some* default.\n  exception.mechanism = exception.mechanism || { type: 'generic', handled: true };\n\n  exception.mechanism = {\n    ...exception.mechanism,\n    ...(exception.type === 'AggregateError' && { is_exception_group: true }),\n    exception_id: exceptionId,\n  };\n}\n\nfunction applyExceptionGroupFieldsForChildException(\n  exception,\n  source,\n  exceptionId,\n  parentId,\n) {\n  // Don't know if this default makes sense. The protocol requires us to set these values so we pick *some* default.\n  exception.mechanism = exception.mechanism || { type: 'generic', handled: true };\n\n  exception.mechanism = {\n    ...exception.mechanism,\n    type: 'chained',\n    source,\n    exception_id: exceptionId,\n    parent_id: parentId,\n  };\n}\n\n/**\n * Truncate the message (exception.value) of all exceptions in the event.\n * Because this event processor is ran after `applyClientOptions`,\n * we need to truncate the message of the added exceptions here.\n */\nfunction truncateAggregateExceptions(exceptions, maxValueLength) {\n  return exceptions.map(exception => {\n    if (exception.value) {\n      exception.value = truncate(exception.value, maxValueLength);\n    }\n    return exception;\n  });\n}\n\nexport { applyAggregateErrorsToEvent };\n","import { defineIntegration, applyAggregateErrorsToEvent } from '@sentry/core';\nimport { exceptionFromError } from '../eventbuilder.js';\n\nconst DEFAULT_KEY = 'cause';\nconst DEFAULT_LIMIT = 5;\n\nconst INTEGRATION_NAME = 'LinkedErrors';\n\nconst _linkedErrorsIntegration = ((options = {}) => {\n  const limit = options.limit || DEFAULT_LIMIT;\n  const key = options.key || DEFAULT_KEY;\n\n  return {\n    name: INTEGRATION_NAME,\n    preprocessEvent(event, hint, client) {\n      const options = client.getOptions();\n\n      applyAggregateErrorsToEvent(\n        // This differs from the LinkedErrors integration in core by using a different exceptionFromError function\n        exceptionFromError,\n        options.stackParser,\n        options.maxValueLength,\n        key,\n        limit,\n        event,\n        hint,\n      );\n    },\n  };\n}) ;\n\n/**\n * Aggregrate linked errors in an event.\n */\nconst linkedErrorsIntegration = defineIntegration(_linkedErrorsIntegration);\n\nexport { linkedErrorsIntegration };\n","import { defineIntegration } from '@sentry/core';\nimport { WINDOW } from '../helpers.js';\n\n/**\n * Collects information about HTTP request headers and\n * attaches them to the event.\n */\nconst httpContextIntegration = defineIntegration(() => {\n  return {\n    name: 'HttpContext',\n    preprocessEvent(event) {\n      // if none of the information we want exists, don't bother\n      if (!WINDOW.navigator && !WINDOW.location && !WINDOW.document) {\n        return;\n      }\n\n      // grab as much info as exists and add it to the event\n      const url = (event.request && event.request.url) || (WINDOW.location && WINDOW.location.href);\n      const { referrer } = WINDOW.document || {};\n      const { userAgent } = WINDOW.navigator || {};\n\n      const headers = {\n        ...(event.request && event.request.headers),\n        ...(referrer && { Referer: referrer }),\n        ...(userAgent && { 'User-Agent': userAgent }),\n      };\n      const request = { ...event.request, ...(url && { url }), headers };\n\n      event.request = request;\n    },\n  };\n});\n\nexport { httpContextIntegration };\n","import { DEBUG_BUILD } from '../debug-build.js';\nimport { defineIntegration } from '../integration.js';\nimport { logger } from '../utils-hoist/logger.js';\nimport { getEventDescription } from '../utils-hoist/misc.js';\nimport { stringMatchesSomePattern } from '../utils-hoist/string.js';\n\n// \"Script error.\" is hard coded into browsers for errors that it can't read.\n// this is the result of a script being pulled in from an external domain and CORS.\nconst DEFAULT_IGNORE_ERRORS = [\n  /^Script error\\.?$/,\n  /^Javascript error: Script error\\.? on line 0$/,\n  /^ResizeObserver loop completed with undelivered notifications.$/, // The browser logs this when a ResizeObserver handler takes a bit longer. Usually this is not an actual issue though. It indicates slowness.\n  /^Cannot redefine property: googletag$/, // This is thrown when google tag manager is used in combination with an ad blocker\n  \"undefined is not an object (evaluating 'a.L')\", // Random error that happens but not actionable or noticeable to end-users.\n  'can\\'t redefine non-configurable property \"solana\"', // Probably a browser extension or custom browser (Brave) throwing this error\n  \"vv().getRestrictions is not a function. (In 'vv().getRestrictions(1,a)', 'vv().getRestrictions' is undefined)\", // Error thrown by GTM, seemingly not affecting end-users\n  \"Can't find variable: _AutofillCallbackHandler\", // Unactionable error in instagram webview https://developers.facebook.com/community/threads/320013549791141/\n];\n\n/** Options for the InboundFilters integration */\n\nconst INTEGRATION_NAME = 'InboundFilters';\nconst _inboundFiltersIntegration = ((options = {}) => {\n  return {\n    name: INTEGRATION_NAME,\n    processEvent(event, _hint, client) {\n      const clientOptions = client.getOptions();\n      const mergedOptions = _mergeOptions(options, clientOptions);\n      return _shouldDropEvent(event, mergedOptions) ? null : event;\n    },\n  };\n}) ;\n\nconst inboundFiltersIntegration = defineIntegration(_inboundFiltersIntegration);\n\nfunction _mergeOptions(\n  internalOptions = {},\n  clientOptions = {},\n) {\n  return {\n    allowUrls: [...(internalOptions.allowUrls || []), ...(clientOptions.allowUrls || [])],\n    denyUrls: [...(internalOptions.denyUrls || []), ...(clientOptions.denyUrls || [])],\n    ignoreErrors: [\n      ...(internalOptions.ignoreErrors || []),\n      ...(clientOptions.ignoreErrors || []),\n      ...(internalOptions.disableErrorDefaults ? [] : DEFAULT_IGNORE_ERRORS),\n    ],\n    ignoreTransactions: [...(internalOptions.ignoreTransactions || []), ...(clientOptions.ignoreTransactions || [])],\n    ignoreInternal: internalOptions.ignoreInternal !== undefined ? internalOptions.ignoreInternal : true,\n  };\n}\n\nfunction _shouldDropEvent(event, options) {\n  if (options.ignoreInternal && _isSentryError(event)) {\n    DEBUG_BUILD &&\n      logger.warn(`Event dropped due to being internal Sentry Error.\\nEvent: ${getEventDescription(event)}`);\n    return true;\n  }\n  if (_isIgnoredError(event, options.ignoreErrors)) {\n    DEBUG_BUILD &&\n      logger.warn(\n        `Event dropped due to being matched by \\`ignoreErrors\\` option.\\nEvent: ${getEventDescription(event)}`,\n      );\n    return true;\n  }\n  if (_isUselessError(event)) {\n    DEBUG_BUILD &&\n      logger.warn(\n        `Event dropped due to not having an error message, error type or stacktrace.\\nEvent: ${getEventDescription(\n          event,\n        )}`,\n      );\n    return true;\n  }\n  if (_isIgnoredTransaction(event, options.ignoreTransactions)) {\n    DEBUG_BUILD &&\n      logger.warn(\n        `Event dropped due to being matched by \\`ignoreTransactions\\` option.\\nEvent: ${getEventDescription(event)}`,\n      );\n    return true;\n  }\n  if (_isDeniedUrl(event, options.denyUrls)) {\n    DEBUG_BUILD &&\n      logger.warn(\n        `Event dropped due to being matched by \\`denyUrls\\` option.\\nEvent: ${getEventDescription(\n          event,\n        )}.\\nUrl: ${_getEventFilterUrl(event)}`,\n      );\n    return true;\n  }\n  if (!_isAllowedUrl(event, options.allowUrls)) {\n    DEBUG_BUILD &&\n      logger.warn(\n        `Event dropped due to not being matched by \\`allowUrls\\` option.\\nEvent: ${getEventDescription(\n          event,\n        )}.\\nUrl: ${_getEventFilterUrl(event)}`,\n      );\n    return true;\n  }\n  return false;\n}\n\nfunction _isIgnoredError(event, ignoreErrors) {\n  // If event.type, this is not an error\n  if (event.type || !ignoreErrors || !ignoreErrors.length) {\n    return false;\n  }\n\n  return _getPossibleEventMessages(event).some(message => stringMatchesSomePattern(message, ignoreErrors));\n}\n\nfunction _isIgnoredTransaction(event, ignoreTransactions) {\n  if (event.type !== 'transaction' || !ignoreTransactions || !ignoreTransactions.length) {\n    return false;\n  }\n\n  const name = event.transaction;\n  return name ? stringMatchesSomePattern(name, ignoreTransactions) : false;\n}\n\nfunction _isDeniedUrl(event, denyUrls) {\n  // TODO: Use Glob instead?\n  if (!denyUrls || !denyUrls.length) {\n    return false;\n  }\n  const url = _getEventFilterUrl(event);\n  return !url ? false : stringMatchesSomePattern(url, denyUrls);\n}\n\nfunction _isAllowedUrl(event, allowUrls) {\n  // TODO: Use Glob instead?\n  if (!allowUrls || !allowUrls.length) {\n    return true;\n  }\n  const url = _getEventFilterUrl(event);\n  return !url ? true : stringMatchesSomePattern(url, allowUrls);\n}\n\nfunction _getPossibleEventMessages(event) {\n  const possibleMessages = [];\n\n  if (event.message) {\n    possibleMessages.push(event.message);\n  }\n\n  let lastException;\n  try {\n    // @ts-expect-error Try catching to save bundle size\n    lastException = event.exception.values[event.exception.values.length - 1];\n  } catch (e) {\n    // try catching to save bundle size checking existence of variables\n  }\n\n  if (lastException) {\n    if (lastException.value) {\n      possibleMessages.push(lastException.value);\n      if (lastException.type) {\n        possibleMessages.push(`${lastException.type}: ${lastException.value}`);\n      }\n    }\n  }\n\n  return possibleMessages;\n}\n\nfunction _isSentryError(event) {\n  try {\n    // @ts-expect-error can't be a sentry error if undefined\n    return event.exception.values[0].type === 'SentryError';\n  } catch (e) {\n    // ignore\n  }\n  return false;\n}\n\nfunction _getLastValidUrl(frames = []) {\n  for (let i = frames.length - 1; i >= 0; i--) {\n    const frame = frames[i];\n\n    if (frame && frame.filename !== '<anonymous>' && frame.filename !== '[native code]') {\n      return frame.filename || null;\n    }\n  }\n\n  return null;\n}\n\nfunction _getEventFilterUrl(event) {\n  try {\n    let frames;\n    try {\n      // @ts-expect-error we only care about frames if the whole thing here is defined\n      frames = event.exception.values[0].stacktrace.frames;\n    } catch (e) {\n      // ignore\n    }\n    return frames ? _getLastValidUrl(frames) : null;\n  } catch (oO) {\n    DEBUG_BUILD && logger.error(`Cannot extract url for event ${getEventDescription(event)}`);\n    return null;\n  }\n}\n\nfunction _isUselessError(event) {\n  if (event.type) {\n    // event is not an error\n    return false;\n  }\n\n  // We only want to consider events for dropping that actually have recorded exception values.\n  if (!event.exception || !event.exception.values || event.exception.values.length === 0) {\n    return false;\n  }\n\n  return (\n    // No top-level message\n    !event.message &&\n    // There are no exception values that have a stacktrace, a non-generic-Error type or value\n    !event.exception.values.some(value => value.stacktrace || (value.type && value.type !== 'Error') || value.value)\n  );\n}\n\nexport { inboundFiltersIntegration };\n","import { getClient } from '../currentScopes.js';\nimport { defineIntegration } from '../integration.js';\nimport { getOriginalFunction } from '../utils-hoist/object.js';\n\nlet originalFunctionToString;\n\nconst INTEGRATION_NAME = 'FunctionToString';\n\nconst SETUP_CLIENTS = new WeakMap();\n\nconst _functionToStringIntegration = (() => {\n  return {\n    name: INTEGRATION_NAME,\n    setupOnce() {\n      // eslint-disable-next-line @typescript-eslint/unbound-method\n      originalFunctionToString = Function.prototype.toString;\n\n      // intrinsics (like Function.prototype) might be immutable in some environments\n      // e.g. Node with --frozen-intrinsics, XS (an embedded JavaScript engine) or SES (a JavaScript proposal)\n      try {\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        Function.prototype.toString = function ( ...args) {\n          const originalFunction = getOriginalFunction(this);\n          const context =\n            SETUP_CLIENTS.has(getClient() ) && originalFunction !== undefined ? originalFunction : this;\n          return originalFunctionToString.apply(context, args);\n        };\n      } catch (e) {\n        // ignore errors here, just don't patch this\n      }\n    },\n    setup(client) {\n      SETUP_CLIENTS.set(client, true);\n    },\n  };\n}) ;\n\n/**\n * Patch toString calls to return proper name for wrapped functions.\n *\n * ```js\n * Sentry.init({\n *   integrations: [\n *     functionToStringIntegration(),\n *   ],\n * });\n * ```\n */\nconst functionToStringIntegration = defineIntegration(_functionToStringIntegration);\n\nexport { functionToStringIntegration };\n","import { defineIntegration } from '../integration.js';\nimport { DEBUG_BUILD } from '../debug-build.js';\nimport { logger } from '../utils-hoist/logger.js';\nimport { getFramesFromEvent } from '../utils-hoist/stacktrace.js';\n\nconst INTEGRATION_NAME = 'Dedupe';\n\nconst _dedupeIntegration = (() => {\n  let previousEvent;\n\n  return {\n    name: INTEGRATION_NAME,\n    processEvent(currentEvent) {\n      // We want to ignore any non-error type events, e.g. transactions or replays\n      // These should never be deduped, and also not be compared against as _previousEvent.\n      if (currentEvent.type) {\n        return currentEvent;\n      }\n\n      // Juuust in case something goes wrong\n      try {\n        if (_shouldDropEvent(currentEvent, previousEvent)) {\n          DEBUG_BUILD && logger.warn('Event dropped due to being a duplicate of previously captured event.');\n          return null;\n        }\n      } catch (_oO) {} // eslint-disable-line no-empty\n\n      return (previousEvent = currentEvent);\n    },\n  };\n}) ;\n\n/**\n * Deduplication filter.\n */\nconst dedupeIntegration = defineIntegration(_dedupeIntegration);\n\n/** only exported for tests. */\nfunction _shouldDropEvent(currentEvent, previousEvent) {\n  if (!previousEvent) {\n    return false;\n  }\n\n  if (_isSameMessageEvent(currentEvent, previousEvent)) {\n    return true;\n  }\n\n  if (_isSameExceptionEvent(currentEvent, previousEvent)) {\n    return true;\n  }\n\n  return false;\n}\n\nfunction _isSameMessageEvent(currentEvent, previousEvent) {\n  const currentMessage = currentEvent.message;\n  const previousMessage = previousEvent.message;\n\n  // If neither event has a message property, they were both exceptions, so bail out\n  if (!currentMessage && !previousMessage) {\n    return false;\n  }\n\n  // If only one event has a stacktrace, but not the other one, they are not the same\n  if ((currentMessage && !previousMessage) || (!currentMessage && previousMessage)) {\n    return false;\n  }\n\n  if (currentMessage !== previousMessage) {\n    return false;\n  }\n\n  if (!_isSameFingerprint(currentEvent, previousEvent)) {\n    return false;\n  }\n\n  if (!_isSameStacktrace(currentEvent, previousEvent)) {\n    return false;\n  }\n\n  return true;\n}\n\nfunction _isSameExceptionEvent(currentEvent, previousEvent) {\n  const previousException = _getExceptionFromEvent(previousEvent);\n  const currentException = _getExceptionFromEvent(currentEvent);\n\n  if (!previousException || !currentException) {\n    return false;\n  }\n\n  if (previousException.type !== currentException.type || previousException.value !== currentException.value) {\n    return false;\n  }\n\n  if (!_isSameFingerprint(currentEvent, previousEvent)) {\n    return false;\n  }\n\n  if (!_isSameStacktrace(currentEvent, previousEvent)) {\n    return false;\n  }\n\n  return true;\n}\n\nfunction _isSameStacktrace(currentEvent, previousEvent) {\n  let currentFrames = getFramesFromEvent(currentEvent);\n  let previousFrames = getFramesFromEvent(previousEvent);\n\n  // If neither event has a stacktrace, they are assumed to be the same\n  if (!currentFrames && !previousFrames) {\n    return true;\n  }\n\n  // If only one event has a stacktrace, but not the other one, they are not the same\n  if ((currentFrames && !previousFrames) || (!currentFrames && previousFrames)) {\n    return false;\n  }\n\n  currentFrames = currentFrames ;\n  previousFrames = previousFrames ;\n\n  // If number of frames differ, they are not the same\n  if (previousFrames.length !== currentFrames.length) {\n    return false;\n  }\n\n  // Otherwise, compare the two\n  for (let i = 0; i < previousFrames.length; i++) {\n    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n    const frameA = previousFrames[i];\n    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n    const frameB = currentFrames[i];\n\n    if (\n      frameA.filename !== frameB.filename ||\n      frameA.lineno !== frameB.lineno ||\n      frameA.colno !== frameB.colno ||\n      frameA.function !== frameB.function\n    ) {\n      return false;\n    }\n  }\n\n  return true;\n}\n\nfunction _isSameFingerprint(currentEvent, previousEvent) {\n  let currentFingerprint = currentEvent.fingerprint;\n  let previousFingerprint = previousEvent.fingerprint;\n\n  // If neither event has a fingerprint, they are assumed to be the same\n  if (!currentFingerprint && !previousFingerprint) {\n    return true;\n  }\n\n  // If only one event has a fingerprint, but not the other one, they are not the same\n  if ((currentFingerprint && !previousFingerprint) || (!currentFingerprint && previousFingerprint)) {\n    return false;\n  }\n\n  currentFingerprint = currentFingerprint ;\n  previousFingerprint = previousFingerprint ;\n\n  // Otherwise, compare the two\n  try {\n    return !!(currentFingerprint.join('') === previousFingerprint.join(''));\n  } catch (_oO) {\n    return false;\n  }\n}\n\nfunction _getExceptionFromEvent(event) {\n  return event.exception && event.exception.values && event.exception.values[0];\n}\n\nexport { _shouldDropEvent, dedupeIntegration };\n","import { DEBUG_BUILD } from './debug-build.js';\nimport { consoleSandbox, logger } from './logger.js';\n\n/** Regular expression used to parse a Dsn. */\nconst DSN_REGEX = /^(?:(\\w+):)\\/\\/(?:(\\w+)(?::(\\w+)?)?@)([\\w.-]+)(?::(\\d+))?\\/(.+)/;\n\nfunction isValidProtocol(protocol) {\n  return protocol === 'http' || protocol === 'https';\n}\n\n/**\n * Renders the string representation of this Dsn.\n *\n * By default, this will render the public representation without the password\n * component. To get the deprecated private representation, set `withPassword`\n * to true.\n *\n * @param withPassword When set to true, the password will be included.\n */\nfunction dsnToString(dsn, withPassword = false) {\n  const { host, path, pass, port, projectId, protocol, publicKey } = dsn;\n  return (\n    `${protocol}://${publicKey}${withPassword && pass ? `:${pass}` : ''}` +\n    `@${host}${port ? `:${port}` : ''}/${path ? `${path}/` : path}${projectId}`\n  );\n}\n\n/**\n * Parses a Dsn from a given string.\n *\n * @param str A Dsn as string\n * @returns Dsn as DsnComponents or undefined if @param str is not a valid DSN string\n */\nfunction dsnFromString(str) {\n  const match = DSN_REGEX.exec(str);\n\n  if (!match) {\n    // This should be logged to the console\n    consoleSandbox(() => {\n      // eslint-disable-next-line no-console\n      console.error(`Invalid Sentry Dsn: ${str}`);\n    });\n    return undefined;\n  }\n\n  const [protocol, publicKey, pass = '', host = '', port = '', lastPath = ''] = match.slice(1);\n  let path = '';\n  let projectId = lastPath;\n\n  const split = projectId.split('/');\n  if (split.length > 1) {\n    path = split.slice(0, -1).join('/');\n    projectId = split.pop() ;\n  }\n\n  if (projectId) {\n    const projectMatch = projectId.match(/^\\d+/);\n    if (projectMatch) {\n      projectId = projectMatch[0];\n    }\n  }\n\n  return dsnFromComponents({ host, pass, path, projectId, port, protocol: protocol , publicKey });\n}\n\nfunction dsnFromComponents(components) {\n  return {\n    protocol: components.protocol,\n    publicKey: components.publicKey || '',\n    pass: components.pass || '',\n    host: components.host,\n    port: components.port || '',\n    path: components.path || '',\n    projectId: components.projectId,\n  };\n}\n\nfunction validateDsn(dsn) {\n  if (!DEBUG_BUILD) {\n    return true;\n  }\n\n  const { port, projectId, protocol } = dsn;\n\n  const requiredComponents = ['protocol', 'publicKey', 'host', 'projectId'];\n  const hasMissingRequiredComponent = requiredComponents.find(component => {\n    if (!dsn[component]) {\n      logger.error(`Invalid Sentry Dsn: ${component} missing`);\n      return true;\n    }\n    return false;\n  });\n\n  if (hasMissingRequiredComponent) {\n    return false;\n  }\n\n  if (!projectId.match(/^\\d+$/)) {\n    logger.error(`Invalid Sentry Dsn: Invalid projectId ${projectId}`);\n    return false;\n  }\n\n  if (!isValidProtocol(protocol)) {\n    logger.error(`Invalid Sentry Dsn: Invalid protocol ${protocol}`);\n    return false;\n  }\n\n  if (port && isNaN(parseInt(port, 10))) {\n    logger.error(`Invalid Sentry Dsn: Invalid port ${port}`);\n    return false;\n  }\n\n  return true;\n}\n\n/**\n * Creates a valid Sentry Dsn object, identifying a Sentry instance and project.\n * @returns a valid DsnComponents object or `undefined` if @param from is an invalid DSN source\n */\nfunction makeDsn(from) {\n  const components = typeof from === 'string' ? dsnFromString(from) : dsnFromComponents(from);\n  if (!components || !validateDsn(components)) {\n    return undefined;\n  }\n  return components;\n}\n\nexport { dsnFromString, dsnToString, makeDsn };\n","import { dsnToString } from './dsn.js';\nimport { normalize } from './normalize.js';\nimport { dropUndefinedKeys } from './object.js';\nimport { GLOBAL_OBJ } from './worldwide.js';\n\n/**\n * Creates an envelope.\n * Make sure to always explicitly provide the generic to this function\n * so that the envelope types resolve correctly.\n */\nfunction createEnvelope(headers, items = []) {\n  return [headers, items] ;\n}\n\n/**\n * Add an item to an envelope.\n * Make sure to always explicitly provide the generic to this function\n * so that the envelope types resolve correctly.\n */\nfunction addItemToEnvelope(envelope, newItem) {\n  const [headers, items] = envelope;\n  return [headers, [...items, newItem]] ;\n}\n\n/**\n * Convenience function to loop through the items and item types of an envelope.\n * (This function was mostly created because working with envelope types is painful at the moment)\n *\n * If the callback returns true, the rest of the items will be skipped.\n */\nfunction forEachEnvelopeItem(\n  envelope,\n  callback,\n) {\n  const envelopeItems = envelope[1];\n\n  for (const envelopeItem of envelopeItems) {\n    const envelopeItemType = envelopeItem[0].type;\n    const result = callback(envelopeItem, envelopeItemType);\n\n    if (result) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\n/**\n * Returns true if the envelope contains any of the given envelope item types\n */\nfunction envelopeContainsItemType(envelope, types) {\n  return forEachEnvelopeItem(envelope, (_, type) => types.includes(type));\n}\n\n/**\n * Encode a string to UTF8 array.\n */\nfunction encodeUTF8(input) {\n  return GLOBAL_OBJ.__SENTRY__ && GLOBAL_OBJ.__SENTRY__.encodePolyfill\n    ? GLOBAL_OBJ.__SENTRY__.encodePolyfill(input)\n    : new TextEncoder().encode(input);\n}\n\n/**\n * Decode a UTF8 array to string.\n */\nfunction decodeUTF8(input) {\n  return GLOBAL_OBJ.__SENTRY__ && GLOBAL_OBJ.__SENTRY__.decodePolyfill\n    ? GLOBAL_OBJ.__SENTRY__.decodePolyfill(input)\n    : new TextDecoder().decode(input);\n}\n\n/**\n * Serializes an envelope.\n */\nfunction serializeEnvelope(envelope) {\n  const [envHeaders, items] = envelope;\n\n  // Initially we construct our envelope as a string and only convert to binary chunks if we encounter binary data\n  let parts = JSON.stringify(envHeaders);\n\n  function append(next) {\n    if (typeof parts === 'string') {\n      parts = typeof next === 'string' ? parts + next : [encodeUTF8(parts), next];\n    } else {\n      parts.push(typeof next === 'string' ? encodeUTF8(next) : next);\n    }\n  }\n\n  for (const item of items) {\n    const [itemHeaders, payload] = item;\n\n    append(`\\n${JSON.stringify(itemHeaders)}\\n`);\n\n    if (typeof payload === 'string' || payload instanceof Uint8Array) {\n      append(payload);\n    } else {\n      let stringifiedPayload;\n      try {\n        stringifiedPayload = JSON.stringify(payload);\n      } catch (e) {\n        // In case, despite all our efforts to keep `payload` circular-dependency-free, `JSON.stringify()` still\n        // fails, we try again after normalizing it again with infinite normalization depth. This of course has a\n        // performance impact but in this case a performance hit is better than throwing.\n        stringifiedPayload = JSON.stringify(normalize(payload));\n      }\n      append(stringifiedPayload);\n    }\n  }\n\n  return typeof parts === 'string' ? parts : concatBuffers(parts);\n}\n\nfunction concatBuffers(buffers) {\n  const totalLength = buffers.reduce((acc, buf) => acc + buf.length, 0);\n\n  const merged = new Uint8Array(totalLength);\n  let offset = 0;\n  for (const buffer of buffers) {\n    merged.set(buffer, offset);\n    offset += buffer.length;\n  }\n\n  return merged;\n}\n\n/**\n * Parses an envelope\n */\nfunction parseEnvelope(env) {\n  let buffer = typeof env === 'string' ? encodeUTF8(env) : env;\n\n  function readBinary(length) {\n    const bin = buffer.subarray(0, length);\n    // Replace the buffer with the remaining data excluding trailing newline\n    buffer = buffer.subarray(length + 1);\n    return bin;\n  }\n\n  function readJson() {\n    let i = buffer.indexOf(0xa);\n    // If we couldn't find a newline, we must have found the end of the buffer\n    if (i < 0) {\n      i = buffer.length;\n    }\n\n    return JSON.parse(decodeUTF8(readBinary(i))) ;\n  }\n\n  const envelopeHeader = readJson();\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  const items = [];\n\n  while (buffer.length) {\n    const itemHeader = readJson();\n    const binaryLength = typeof itemHeader.length === 'number' ? itemHeader.length : undefined;\n\n    items.push([itemHeader, binaryLength ? readBinary(binaryLength) : readJson()]);\n  }\n\n  return [envelopeHeader, items];\n}\n\n/**\n * Creates envelope item for a single span\n */\nfunction createSpanEnvelopeItem(spanJson) {\n  const spanHeaders = {\n    type: 'span',\n  };\n\n  return [spanHeaders, spanJson];\n}\n\n/**\n * Creates attachment envelope items\n */\nfunction createAttachmentEnvelopeItem(attachment) {\n  const buffer = typeof attachment.data === 'string' ? encodeUTF8(attachment.data) : attachment.data;\n\n  return [\n    dropUndefinedKeys({\n      type: 'attachment',\n      length: buffer.length,\n      filename: attachment.filename,\n      content_type: attachment.contentType,\n      attachment_type: attachment.attachmentType,\n    }),\n    buffer,\n  ];\n}\n\nconst ITEM_TYPE_TO_DATA_CATEGORY_MAP = {\n  session: 'session',\n  sessions: 'session',\n  attachment: 'attachment',\n  transaction: 'transaction',\n  event: 'error',\n  client_report: 'internal',\n  user_report: 'default',\n  profile: 'profile',\n  profile_chunk: 'profile',\n  replay_event: 'replay',\n  replay_recording: 'replay',\n  check_in: 'monitor',\n  feedback: 'feedback',\n  span: 'span',\n  statsd: 'metric_bucket',\n};\n\n/**\n * Maps the type of an envelope item to a data category.\n */\nfunction envelopeItemTypeToDataCategory(type) {\n  return ITEM_TYPE_TO_DATA_CATEGORY_MAP[type];\n}\n\n/** Extracts the minimal SDK info from the metadata or an events */\nfunction getSdkMetadataForEnvelopeHeader(metadataOrEvent) {\n  if (!metadataOrEvent || !metadataOrEvent.sdk) {\n    return;\n  }\n  const { name, version } = metadataOrEvent.sdk;\n  return { name, version };\n}\n\n/**\n * Creates event envelope headers, based on event, sdk info and tunnel\n * Note: This function was extracted from the core package to make it available in Replay\n */\nfunction createEventEnvelopeHeaders(\n  event,\n  sdkInfo,\n  tunnel,\n  dsn,\n) {\n  const dynamicSamplingContext = event.sdkProcessingMetadata && event.sdkProcessingMetadata.dynamicSamplingContext;\n  return {\n    event_id: event.event_id ,\n    sent_at: new Date().toISOString(),\n    ...(sdkInfo && { sdk: sdkInfo }),\n    ...(!!tunnel && dsn && { dsn: dsnToString(dsn) }),\n    ...(dynamicSamplingContext && {\n      trace: dropUndefinedKeys({ ...dynamicSamplingContext }),\n    }),\n  };\n}\n\nexport { addItemToEnvelope, createAttachmentEnvelopeItem, createEnvelope, createEventEnvelopeHeaders, createSpanEnvelopeItem, envelopeContainsItemType, envelopeItemTypeToDataCategory, forEachEnvelopeItem, getSdkMetadataForEnvelopeHeader, parseEnvelope, serializeEnvelope };\n","/** An error emitted by Sentry SDKs and related utilities. */\nclass SentryError extends Error {\n  /** Display name of this error instance. */\n\n   constructor( message, logLevel = 'warn') {\n    super(message);this.message = message;\n    this.name = new.target.prototype.constructor.name;\n    // This sets the prototype to be `Error`, not `SentryError`. It's unclear why we do this, but commenting this line\n    // out causes various (seemingly totally unrelated) playwright tests consistently time out. FYI, this makes\n    // instances of `SentryError` fail `obj instanceof SentryError` checks.\n    Object.setPrototypeOf(this, new.target.prototype);\n    this.logLevel = logLevel;\n  }\n}\n\nexport { SentryError };\n","import { DEBUG_BUILD } from '../debug-build.js';\nimport { logger } from '../utils-hoist/logger.js';\n\n/**\n * Parse a sample rate from a given value.\n * This will either return a boolean or number sample rate, if the sample rate is valid (between 0 and 1).\n * If a string is passed, we try to convert it to a number.\n *\n * Any invalid sample rate will return `undefined`.\n */\nfunction parseSampleRate(sampleRate) {\n  if (typeof sampleRate === 'boolean') {\n    return Number(sampleRate);\n  }\n\n  const rate = typeof sampleRate === 'string' ? parseFloat(sampleRate) : sampleRate;\n  if (typeof rate !== 'number' || isNaN(rate) || rate < 0 || rate > 1) {\n    DEBUG_BUILD &&\n      logger.warn(\n        `[Tracing] Given sample rate is invalid. Sample rate must be a boolean or a number between 0 and 1. Got ${JSON.stringify(\n          sampleRate,\n        )} of type ${JSON.stringify(typeof sampleRate)}.`,\n      );\n    return undefined;\n  }\n\n  return rate;\n}\n\nexport { parseSampleRate };\n","import { getEnvelopeEndpointWithUrlEncodedAuth } from './api.js';\nimport { getTraceContextFromScope, getCurrentScope, getIsolationScope } from './currentScopes.js';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { createEventEnvelope, createSessionEnvelope } from './envelope.js';\nimport { setupIntegration, afterSetupIntegrations, setupIntegrations } from './integration.js';\nimport { updateSession } from './session.js';\nimport { getDynamicSamplingContextFromScope } from './tracing/dynamicSamplingContext.js';\nimport { createClientReportEnvelope } from './utils-hoist/clientreport.js';\nimport { makeDsn, dsnToString } from './utils-hoist/dsn.js';\nimport { addItemToEnvelope, createAttachmentEnvelopeItem } from './utils-hoist/envelope.js';\nimport { SentryError } from './utils-hoist/error.js';\nimport { isPrimitive, isThenable, isPlainObject, isParameterizedString } from './utils-hoist/is.js';\nimport { logger, consoleSandbox } from './utils-hoist/logger.js';\nimport { uuid4, checkOrSetAlreadyCaught } from './utils-hoist/misc.js';\nimport { resolvedSyncPromise, SyncPromise, rejectedSyncPromise } from './utils-hoist/syncpromise.js';\nimport { parseSampleRate } from './utils/parseSampleRate.js';\nimport { prepareEvent } from './utils/prepareEvent.js';\nimport { showSpanDropWarning } from './utils/spanUtils.js';\n\nconst ALREADY_SEEN_ERROR = \"Not capturing exception because it's already been captured.\";\n\n/**\n * Base implementation for all JavaScript SDK clients.\n *\n * Call the constructor with the corresponding options\n * specific to the client subclass. To access these options later, use\n * {@link Client.getOptions}.\n *\n * If a Dsn is specified in the options, it will be parsed and stored. Use\n * {@link Client.getDsn} to retrieve the Dsn at any moment. In case the Dsn is\n * invalid, the constructor will throw a {@link SentryException}. Note that\n * without a valid Dsn, the SDK will not send any events to Sentry.\n *\n * Before sending an event, it is passed through\n * {@link BaseClient._prepareEvent} to add SDK information and scope data\n * (breadcrumbs and context). To add more custom information, override this\n * method and extend the resulting prepared event.\n *\n * To issue automatically created events (e.g. via instrumentation), use\n * {@link Client.captureEvent}. It will prepare the event and pass it through\n * the callback lifecycle. To issue auto-breadcrumbs, use\n * {@link Client.addBreadcrumb}.\n *\n * @example\n * class NodeClient extends BaseClient<NodeOptions> {\n *   public constructor(options: NodeOptions) {\n *     super(options);\n *   }\n *\n *   // ...\n * }\n */\nclass BaseClient {\n  /** Options passed to the SDK. */\n\n  /** The client Dsn, if specified in options. Without this Dsn, the SDK will be disabled. */\n\n  /** Array of set up integrations. */\n\n  /** Number of calls being processed */\n\n  /** Holds flushable  */\n\n  // eslint-disable-next-line @typescript-eslint/ban-types\n\n  /**\n   * Initializes this client instance.\n   *\n   * @param options Options for the client.\n   */\n   constructor(options) {\n    this._options = options;\n    this._integrations = {};\n    this._numProcessing = 0;\n    this._outcomes = {};\n    this._hooks = {};\n    this._eventProcessors = [];\n\n    if (options.dsn) {\n      this._dsn = makeDsn(options.dsn);\n    } else {\n      DEBUG_BUILD && logger.warn('No DSN provided, client will not send events.');\n    }\n\n    if (this._dsn) {\n      const url = getEnvelopeEndpointWithUrlEncodedAuth(\n        this._dsn,\n        options.tunnel,\n        options._metadata ? options._metadata.sdk : undefined,\n      );\n      this._transport = options.transport({\n        tunnel: this._options.tunnel,\n        recordDroppedEvent: this.recordDroppedEvent.bind(this),\n        ...options.transportOptions,\n        url,\n      });\n    }\n\n    // TODO(v9): Remove this deprecation warning\n    const tracingOptions = ['enableTracing', 'tracesSampleRate', 'tracesSampler'] ;\n    const undefinedOption = tracingOptions.find(option => option in options && options[option] == undefined);\n    if (undefinedOption) {\n      consoleSandbox(() => {\n        // eslint-disable-next-line no-console\n        console.warn(\n          `[Sentry] Deprecation warning: \\`${undefinedOption}\\` is set to undefined, which leads to tracing being enabled. In v9, a value of \\`undefined\\` will result in tracing being disabled.`,\n        );\n      });\n    }\n  }\n\n  /**\n   * @inheritDoc\n   */\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n   captureException(exception, hint, scope) {\n    const eventId = uuid4();\n\n    // ensure we haven't captured this very object before\n    if (checkOrSetAlreadyCaught(exception)) {\n      DEBUG_BUILD && logger.log(ALREADY_SEEN_ERROR);\n      return eventId;\n    }\n\n    const hintWithEventId = {\n      event_id: eventId,\n      ...hint,\n    };\n\n    this._process(\n      this.eventFromException(exception, hintWithEventId).then(event =>\n        this._captureEvent(event, hintWithEventId, scope),\n      ),\n    );\n\n    return hintWithEventId.event_id;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   captureMessage(\n    message,\n    level,\n    hint,\n    currentScope,\n  ) {\n    const hintWithEventId = {\n      event_id: uuid4(),\n      ...hint,\n    };\n\n    const eventMessage = isParameterizedString(message) ? message : String(message);\n\n    const promisedEvent = isPrimitive(message)\n      ? this.eventFromMessage(eventMessage, level, hintWithEventId)\n      : this.eventFromException(message, hintWithEventId);\n\n    this._process(promisedEvent.then(event => this._captureEvent(event, hintWithEventId, currentScope)));\n\n    return hintWithEventId.event_id;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   captureEvent(event, hint, currentScope) {\n    const eventId = uuid4();\n\n    // ensure we haven't captured this very object before\n    if (hint && hint.originalException && checkOrSetAlreadyCaught(hint.originalException)) {\n      DEBUG_BUILD && logger.log(ALREADY_SEEN_ERROR);\n      return eventId;\n    }\n\n    const hintWithEventId = {\n      event_id: eventId,\n      ...hint,\n    };\n\n    const sdkProcessingMetadata = event.sdkProcessingMetadata || {};\n    const capturedSpanScope = sdkProcessingMetadata.capturedSpanScope;\n\n    this._process(this._captureEvent(event, hintWithEventId, capturedSpanScope || currentScope));\n\n    return hintWithEventId.event_id;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   captureSession(session) {\n    if (!(typeof session.release === 'string')) {\n      DEBUG_BUILD && logger.warn('Discarded session because of missing or non-string release');\n    } else {\n      this.sendSession(session);\n      // After sending, we set init false to indicate it's not the first occurrence\n      updateSession(session, { init: false });\n    }\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getDsn() {\n    return this._dsn;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getOptions() {\n    return this._options;\n  }\n\n  /**\n   * @see SdkMetadata\n   *\n   * @return The metadata of the SDK\n   */\n   getSdkMetadata() {\n    return this._options._metadata;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   getTransport() {\n    return this._transport;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   flush(timeout) {\n    const transport = this._transport;\n    if (transport) {\n      this.emit('flush');\n      return this._isClientDoneProcessing(timeout).then(clientFinished => {\n        return transport.flush(timeout).then(transportFlushed => clientFinished && transportFlushed);\n      });\n    } else {\n      return resolvedSyncPromise(true);\n    }\n  }\n\n  /**\n   * @inheritDoc\n   */\n   close(timeout) {\n    return this.flush(timeout).then(result => {\n      this.getOptions().enabled = false;\n      this.emit('close');\n      return result;\n    });\n  }\n\n  /** Get all installed event processors. */\n   getEventProcessors() {\n    return this._eventProcessors;\n  }\n\n  /** @inheritDoc */\n   addEventProcessor(eventProcessor) {\n    this._eventProcessors.push(eventProcessor);\n  }\n\n  /** @inheritdoc */\n   init() {\n    if (\n      this._isEnabled() ||\n      // Force integrations to be setup even if no DSN was set when we have\n      // Spotlight enabled. This is particularly important for browser as we\n      // don't support the `spotlight` option there and rely on the users\n      // adding the `spotlightBrowserIntegration()` to their integrations which\n      // wouldn't get initialized with the check below when there's no DSN set.\n      this._options.integrations.some(({ name }) => name.startsWith('Spotlight'))\n    ) {\n      this._setupIntegrations();\n    }\n  }\n\n  /**\n   * Gets an installed integration by its name.\n   *\n   * @returns The installed integration or `undefined` if no integration with that `name` was installed.\n   */\n   getIntegrationByName(integrationName) {\n    return this._integrations[integrationName] ;\n  }\n\n  /**\n   * @inheritDoc\n   */\n   addIntegration(integration) {\n    const isAlreadyInstalled = this._integrations[integration.name];\n\n    // This hook takes care of only installing if not already installed\n    setupIntegration(this, integration, this._integrations);\n    // Here we need to check manually to make sure to not run this multiple times\n    if (!isAlreadyInstalled) {\n      afterSetupIntegrations(this, [integration]);\n    }\n  }\n\n  /**\n   * @inheritDoc\n   */\n   sendEvent(event, hint = {}) {\n    this.emit('beforeSendEvent', event, hint);\n\n    let env = createEventEnvelope(event, this._dsn, this._options._metadata, this._options.tunnel);\n\n    for (const attachment of hint.attachments || []) {\n      env = addItemToEnvelope(env, createAttachmentEnvelopeItem(attachment));\n    }\n\n    const promise = this.sendEnvelope(env);\n    if (promise) {\n      promise.then(sendResponse => this.emit('afterSendEvent', event, sendResponse), null);\n    }\n  }\n\n  /**\n   * @inheritDoc\n   */\n   sendSession(session) {\n    const env = createSessionEnvelope(session, this._dsn, this._options._metadata, this._options.tunnel);\n\n    // sendEnvelope should not throw\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    this.sendEnvelope(env);\n  }\n\n  /**\n   * @inheritDoc\n   */\n   recordDroppedEvent(reason, category, eventOrCount) {\n    if (this._options.sendClientReports) {\n      // TODO v9: We do not need the `event` passed as third argument anymore, and can possibly remove this overload\n      // If event is passed as third argument, we assume this is a count of 1\n      const count = typeof eventOrCount === 'number' ? eventOrCount : 1;\n\n      // We want to track each category (error, transaction, session, replay_event) separately\n      // but still keep the distinction between different type of outcomes.\n      // We could use nested maps, but it's much easier to read and type this way.\n      // A correct type for map-based implementation if we want to go that route\n      // would be `Partial<Record<SentryRequestType, Partial<Record<Outcome, number>>>>`\n      // With typescript 4.1 we could even use template literal types\n      const key = `${reason}:${category}`;\n      DEBUG_BUILD && logger.log(`Recording outcome: \"${key}\"${count > 1 ? ` (${count} times)` : ''}`);\n      this._outcomes[key] = (this._outcomes[key] || 0) + count;\n    }\n  }\n\n  // Keep on() & emit() signatures in sync with types' client.ts interface\n  /* eslint-disable @typescript-eslint/unified-signatures */\n\n  /** @inheritdoc */\n\n  /** @inheritdoc */\n   on(hook, callback) {\n    const hooks = (this._hooks[hook] = this._hooks[hook] || []);\n\n    // @ts-expect-error We assume the types are correct\n    hooks.push(callback);\n\n    // This function returns a callback execution handler that, when invoked,\n    // deregisters a callback. This is crucial for managing instances where callbacks\n    // need to be unregistered to prevent self-referencing in callback closures,\n    // ensuring proper garbage collection.\n    return () => {\n      // @ts-expect-error We assume the types are correct\n      const cbIndex = hooks.indexOf(callback);\n      if (cbIndex > -1) {\n        hooks.splice(cbIndex, 1);\n      }\n    };\n  }\n\n  /** @inheritdoc */\n\n  /** @inheritdoc */\n   emit(hook, ...rest) {\n    const callbacks = this._hooks[hook];\n    if (callbacks) {\n      callbacks.forEach(callback => callback(...rest));\n    }\n  }\n\n  /**\n   * @inheritdoc\n   */\n   sendEnvelope(envelope) {\n    this.emit('beforeEnvelope', envelope);\n\n    if (this._isEnabled() && this._transport) {\n      return this._transport.send(envelope).then(null, reason => {\n        DEBUG_BUILD && logger.error('Error while sending envelope:', reason);\n        return reason;\n      });\n    }\n\n    DEBUG_BUILD && logger.error('Transport disabled');\n\n    return resolvedSyncPromise({});\n  }\n\n  /* eslint-enable @typescript-eslint/unified-signatures */\n\n  /** Setup integrations for this client. */\n   _setupIntegrations() {\n    const { integrations } = this._options;\n    this._integrations = setupIntegrations(this, integrations);\n    afterSetupIntegrations(this, integrations);\n  }\n\n  /** Updates existing session based on the provided event */\n   _updateSessionFromEvent(session, event) {\n    let crashed = false;\n    let errored = false;\n    const exceptions = event.exception && event.exception.values;\n\n    if (exceptions) {\n      errored = true;\n\n      for (const ex of exceptions) {\n        const mechanism = ex.mechanism;\n        if (mechanism && mechanism.handled === false) {\n          crashed = true;\n          break;\n        }\n      }\n    }\n\n    // A session is updated and that session update is sent in only one of the two following scenarios:\n    // 1. Session with non terminal status and 0 errors + an error occurred -> Will set error count to 1 and send update\n    // 2. Session with non terminal status and 1 error + a crash occurred -> Will set status crashed and send update\n    const sessionNonTerminal = session.status === 'ok';\n    const shouldUpdateAndSend = (sessionNonTerminal && session.errors === 0) || (sessionNonTerminal && crashed);\n\n    if (shouldUpdateAndSend) {\n      updateSession(session, {\n        ...(crashed && { status: 'crashed' }),\n        errors: session.errors || Number(errored || crashed),\n      });\n      this.captureSession(session);\n    }\n  }\n\n  /**\n   * Determine if the client is finished processing. Returns a promise because it will wait `timeout` ms before saying\n   * \"no\" (resolving to `false`) in order to give the client a chance to potentially finish first.\n   *\n   * @param timeout The time, in ms, after which to resolve to `false` if the client is still busy. Passing `0` (or not\n   * passing anything) will make the promise wait as long as it takes for processing to finish before resolving to\n   * `true`.\n   * @returns A promise which will resolve to `true` if processing is already done or finishes before the timeout, and\n   * `false` otherwise\n   */\n   _isClientDoneProcessing(timeout) {\n    return new SyncPromise(resolve => {\n      let ticked = 0;\n      const tick = 1;\n\n      const interval = setInterval(() => {\n        if (this._numProcessing == 0) {\n          clearInterval(interval);\n          resolve(true);\n        } else {\n          ticked += tick;\n          if (timeout && ticked >= timeout) {\n            clearInterval(interval);\n            resolve(false);\n          }\n        }\n      }, tick);\n    });\n  }\n\n  /** Determines whether this SDK is enabled and a transport is present. */\n   _isEnabled() {\n    return this.getOptions().enabled !== false && this._transport !== undefined;\n  }\n\n  /**\n   * Adds common information to events.\n   *\n   * The information includes release and environment from `options`,\n   * breadcrumbs and context (extra, tags and user) from the scope.\n   *\n   * Information that is already present in the event is never overwritten. For\n   * nested objects, such as the context, keys are merged.\n   *\n   * @param event The original event.\n   * @param hint May contain additional information about the original exception.\n   * @param currentScope A scope containing event metadata.\n   * @returns A new event with more information.\n   */\n   _prepareEvent(\n    event,\n    hint,\n    currentScope = getCurrentScope(),\n    isolationScope = getIsolationScope(),\n  ) {\n    const options = this.getOptions();\n    const integrations = Object.keys(this._integrations);\n    if (!hint.integrations && integrations.length > 0) {\n      hint.integrations = integrations;\n    }\n\n    this.emit('preprocessEvent', event, hint);\n\n    if (!event.type) {\n      isolationScope.setLastEventId(event.event_id || hint.event_id);\n    }\n\n    return prepareEvent(options, event, hint, currentScope, this, isolationScope).then(evt => {\n      if (evt === null) {\n        return evt;\n      }\n\n      evt.contexts = {\n        trace: getTraceContextFromScope(currentScope),\n        ...evt.contexts,\n      };\n\n      const dynamicSamplingContext = getDynamicSamplingContextFromScope(this, currentScope);\n\n      evt.sdkProcessingMetadata = {\n        dynamicSamplingContext,\n        ...evt.sdkProcessingMetadata,\n      };\n\n      return evt;\n    });\n  }\n\n  /**\n   * Processes the event and logs an error in case of rejection\n   * @param event\n   * @param hint\n   * @param scope\n   */\n   _captureEvent(event, hint = {}, scope) {\n    return this._processEvent(event, hint, scope).then(\n      finalEvent => {\n        return finalEvent.event_id;\n      },\n      reason => {\n        if (DEBUG_BUILD) {\n          // If something's gone wrong, log the error as a warning. If it's just us having used a `SentryError` for\n          // control flow, log just the message (no stack) as a log-level log.\n          const sentryError = reason ;\n          if (sentryError.logLevel === 'log') {\n            logger.log(sentryError.message);\n          } else {\n            logger.warn(sentryError);\n          }\n        }\n        return undefined;\n      },\n    );\n  }\n\n  /**\n   * Processes an event (either error or message) and sends it to Sentry.\n   *\n   * This also adds breadcrumbs and context information to the event. However,\n   * platform specific meta data (such as the User's IP address) must be added\n   * by the SDK implementor.\n   *\n   *\n   * @param event The event to send to Sentry.\n   * @param hint May contain additional information about the original exception.\n   * @param currentScope A scope containing event metadata.\n   * @returns A SyncPromise that resolves with the event or rejects in case event was/will not be send.\n   */\n   _processEvent(event, hint, currentScope) {\n    const options = this.getOptions();\n    const { sampleRate } = options;\n\n    const isTransaction = isTransactionEvent(event);\n    const isError = isErrorEvent(event);\n    const eventType = event.type || 'error';\n    const beforeSendLabel = `before send for type \\`${eventType}\\``;\n\n    // 1.0 === 100% events are sent\n    // 0.0 === 0% events are sent\n    // Sampling for transaction happens somewhere else\n    const parsedSampleRate = typeof sampleRate === 'undefined' ? undefined : parseSampleRate(sampleRate);\n    if (isError && typeof parsedSampleRate === 'number' && Math.random() > parsedSampleRate) {\n      this.recordDroppedEvent('sample_rate', 'error', event);\n      return rejectedSyncPromise(\n        new SentryError(\n          `Discarding event because it's not included in the random sample (sampling rate = ${sampleRate})`,\n          'log',\n        ),\n      );\n    }\n\n    const dataCategory = eventType === 'replay_event' ? 'replay' : eventType;\n\n    const sdkProcessingMetadata = event.sdkProcessingMetadata || {};\n    const capturedSpanIsolationScope = sdkProcessingMetadata.capturedSpanIsolationScope;\n\n    return this._prepareEvent(event, hint, currentScope, capturedSpanIsolationScope)\n      .then(prepared => {\n        if (prepared === null) {\n          this.recordDroppedEvent('event_processor', dataCategory, event);\n          throw new SentryError('An event processor returned `null`, will not send event.', 'log');\n        }\n\n        const isInternalException = hint.data && (hint.data ).__sentry__ === true;\n        if (isInternalException) {\n          return prepared;\n        }\n\n        const result = processBeforeSend(this, options, prepared, hint);\n        return _validateBeforeSendResult(result, beforeSendLabel);\n      })\n      .then(processedEvent => {\n        if (processedEvent === null) {\n          this.recordDroppedEvent('before_send', dataCategory, event);\n          if (isTransaction) {\n            const spans = event.spans || [];\n            // the transaction itself counts as one span, plus all the child spans that are added\n            const spanCount = 1 + spans.length;\n            this.recordDroppedEvent('before_send', 'span', spanCount);\n          }\n          throw new SentryError(`${beforeSendLabel} returned \\`null\\`, will not send event.`, 'log');\n        }\n\n        const session = currentScope && currentScope.getSession();\n        if (!isTransaction && session) {\n          this._updateSessionFromEvent(session, processedEvent);\n        }\n\n        if (isTransaction) {\n          const spanCountBefore =\n            (processedEvent.sdkProcessingMetadata && processedEvent.sdkProcessingMetadata.spanCountBeforeProcessing) ||\n            0;\n          const spanCountAfter = processedEvent.spans ? processedEvent.spans.length : 0;\n\n          const droppedSpanCount = spanCountBefore - spanCountAfter;\n          if (droppedSpanCount > 0) {\n            this.recordDroppedEvent('before_send', 'span', droppedSpanCount);\n          }\n        }\n\n        // None of the Sentry built event processor will update transaction name,\n        // so if the transaction name has been changed by an event processor, we know\n        // it has to come from custom event processor added by a user\n        const transactionInfo = processedEvent.transaction_info;\n        if (isTransaction && transactionInfo && processedEvent.transaction !== event.transaction) {\n          const source = 'custom';\n          processedEvent.transaction_info = {\n            ...transactionInfo,\n            source,\n          };\n        }\n\n        this.sendEvent(processedEvent, hint);\n        return processedEvent;\n      })\n      .then(null, reason => {\n        if (reason instanceof SentryError) {\n          throw reason;\n        }\n\n        this.captureException(reason, {\n          data: {\n            __sentry__: true,\n          },\n          originalException: reason,\n        });\n        throw new SentryError(\n          `Event processing pipeline threw an error, original event will not be sent. Details have been sent as a new event.\\nReason: ${reason}`,\n        );\n      });\n  }\n\n  /**\n   * Occupies the client with processing and event\n   */\n   _process(promise) {\n    this._numProcessing++;\n    void promise.then(\n      value => {\n        this._numProcessing--;\n        return value;\n      },\n      reason => {\n        this._numProcessing--;\n        return reason;\n      },\n    );\n  }\n\n  /**\n   * Clears outcomes on this client and returns them.\n   */\n   _clearOutcomes() {\n    const outcomes = this._outcomes;\n    this._outcomes = {};\n    return Object.entries(outcomes).map(([key, quantity]) => {\n      const [reason, category] = key.split(':') ;\n      return {\n        reason,\n        category,\n        quantity,\n      };\n    });\n  }\n\n  /**\n   * Sends client reports as an envelope.\n   */\n   _flushOutcomes() {\n    DEBUG_BUILD && logger.log('Flushing outcomes...');\n\n    const outcomes = this._clearOutcomes();\n\n    if (outcomes.length === 0) {\n      DEBUG_BUILD && logger.log('No outcomes to send');\n      return;\n    }\n\n    // This is really the only place where we want to check for a DSN and only send outcomes then\n    if (!this._dsn) {\n      DEBUG_BUILD && logger.log('No dsn provided, will not send outcomes');\n      return;\n    }\n\n    DEBUG_BUILD && logger.log('Sending outcomes:', outcomes);\n\n    const envelope = createClientReportEnvelope(outcomes, this._options.tunnel && dsnToString(this._dsn));\n\n    // sendEnvelope should not throw\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    this.sendEnvelope(envelope);\n  }\n\n  /**\n   * @inheritDoc\n   */\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n\n}\n\n/**\n * Verifies that return value of configured `beforeSend` or `beforeSendTransaction` is of expected type, and returns the value if so.\n */\nfunction _validateBeforeSendResult(\n  beforeSendResult,\n  beforeSendLabel,\n) {\n  const invalidValueError = `${beforeSendLabel} must return \\`null\\` or a valid event.`;\n  if (isThenable(beforeSendResult)) {\n    return beforeSendResult.then(\n      event => {\n        if (!isPlainObject(event) && event !== null) {\n          throw new SentryError(invalidValueError);\n        }\n        return event;\n      },\n      e => {\n        throw new SentryError(`${beforeSendLabel} rejected with ${e}`);\n      },\n    );\n  } else if (!isPlainObject(beforeSendResult) && beforeSendResult !== null) {\n    throw new SentryError(invalidValueError);\n  }\n  return beforeSendResult;\n}\n\n/**\n * Process the matching `beforeSendXXX` callback.\n */\nfunction processBeforeSend(\n  client,\n  options,\n  event,\n  hint,\n) {\n  const { beforeSend, beforeSendTransaction, beforeSendSpan } = options;\n\n  if (isErrorEvent(event) && beforeSend) {\n    return beforeSend(event, hint);\n  }\n\n  if (isTransactionEvent(event)) {\n    if (event.spans && beforeSendSpan) {\n      const processedSpans = [];\n      for (const span of event.spans) {\n        const processedSpan = beforeSendSpan(span);\n        if (processedSpan) {\n          processedSpans.push(processedSpan);\n        } else {\n          showSpanDropWarning();\n          client.recordDroppedEvent('before_send', 'span');\n        }\n      }\n      event.spans = processedSpans;\n    }\n\n    if (beforeSendTransaction) {\n      if (event.spans) {\n        // We store the # of spans before processing in SDK metadata,\n        // so we can compare it afterwards to determine how many spans were dropped\n        const spanCountBefore = event.spans.length;\n        event.sdkProcessingMetadata = {\n          ...event.sdkProcessingMetadata,\n          spanCountBeforeProcessing: spanCountBefore,\n        };\n      }\n      return beforeSendTransaction(event, hint);\n    }\n  }\n\n  return event;\n}\n\nfunction isErrorEvent(event) {\n  return event.type === undefined;\n}\n\nfunction isTransactionEvent(event) {\n  return event.type === 'transaction';\n}\n\nexport { BaseClient };\n","import { makeDsn, dsnToString } from './utils-hoist/dsn.js';\n\nconst SENTRY_API_VERSION = '7';\n\n/** Returns the prefix to construct Sentry ingestion API endpoints. */\nfunction getBaseApiEndpoint(dsn) {\n  const protocol = dsn.protocol ? `${dsn.protocol}:` : '';\n  const port = dsn.port ? `:${dsn.port}` : '';\n  return `${protocol}//${dsn.host}${port}${dsn.path ? `/${dsn.path}` : ''}/api/`;\n}\n\n/** Returns the ingest API endpoint for target. */\nfunction _getIngestEndpoint(dsn) {\n  return `${getBaseApiEndpoint(dsn)}${dsn.projectId}/envelope/`;\n}\n\n/** Returns a URL-encoded string with auth config suitable for a query string. */\nfunction _encodedAuth(dsn, sdkInfo) {\n  const params = {\n    sentry_version: SENTRY_API_VERSION,\n  };\n\n  if (dsn.publicKey) {\n    // We send only the minimum set of required information. See\n    // https://github.com/getsentry/sentry-javascript/issues/2572.\n    params.sentry_key = dsn.publicKey;\n  }\n\n  if (sdkInfo) {\n    params.sentry_client = `${sdkInfo.name}/${sdkInfo.version}`;\n  }\n\n  return new URLSearchParams(params).toString();\n}\n\n/**\n * Returns the envelope endpoint URL with auth in the query string.\n *\n * Sending auth as part of the query string and not as custom HTTP headers avoids CORS preflight requests.\n */\nfunction getEnvelopeEndpointWithUrlEncodedAuth(dsn, tunnel, sdkInfo) {\n  return tunnel ? tunnel : `${_getIngestEndpoint(dsn)}?${_encodedAuth(dsn, sdkInfo)}`;\n}\n\n/** Returns the url to the report dialog endpoint. */\nfunction getReportDialogEndpoint(\n  dsnLike,\n  dialogOptions\n\n,\n) {\n  const dsn = makeDsn(dsnLike);\n  if (!dsn) {\n    return '';\n  }\n\n  const endpoint = `${getBaseApiEndpoint(dsn)}embed/error-page/`;\n\n  let encodedOptions = `dsn=${dsnToString(dsn)}`;\n  for (const key in dialogOptions) {\n    if (key === 'dsn') {\n      continue;\n    }\n\n    if (key === 'onClose') {\n      continue;\n    }\n\n    if (key === 'user') {\n      const user = dialogOptions.user;\n      if (!user) {\n        continue;\n      }\n      if (user.name) {\n        encodedOptions += `&name=${encodeURIComponent(user.name)}`;\n      }\n      if (user.email) {\n        encodedOptions += `&email=${encodeURIComponent(user.email)}`;\n      }\n    } else {\n      encodedOptions += `&${encodeURIComponent(key)}=${encodeURIComponent(dialogOptions[key] )}`;\n    }\n  }\n\n  return `${endpoint}?${encodedOptions}`;\n}\n\nexport { getEnvelopeEndpointWithUrlEncodedAuth, getReportDialogEndpoint };\n","import { getDynamicSamplingContextFromSpan } from './tracing/dynamicSamplingContext.js';\nimport { dsnToString } from './utils-hoist/dsn.js';\nimport { getSdkMetadataForEnvelopeHeader, createEnvelope, createEventEnvelopeHeaders, createSpanEnvelopeItem } from './utils-hoist/envelope.js';\nimport { spanToJSON, showSpanDropWarning } from './utils/spanUtils.js';\n\n/**\n * Apply SdkInfo (name, version, packages, integrations) to the corresponding event key.\n * Merge with existing data if any.\n **/\nfunction enhanceEventWithSdkInfo(event, sdkInfo) {\n  if (!sdkInfo) {\n    return event;\n  }\n  event.sdk = event.sdk || {};\n  event.sdk.name = event.sdk.name || sdkInfo.name;\n  event.sdk.version = event.sdk.version || sdkInfo.version;\n  event.sdk.integrations = [...(event.sdk.integrations || []), ...(sdkInfo.integrations || [])];\n  event.sdk.packages = [...(event.sdk.packages || []), ...(sdkInfo.packages || [])];\n  return event;\n}\n\n/** Creates an envelope from a Session */\nfunction createSessionEnvelope(\n  session,\n  dsn,\n  metadata,\n  tunnel,\n) {\n  const sdkInfo = getSdkMetadataForEnvelopeHeader(metadata);\n  const envelopeHeaders = {\n    sent_at: new Date().toISOString(),\n    ...(sdkInfo && { sdk: sdkInfo }),\n    ...(!!tunnel && dsn && { dsn: dsnToString(dsn) }),\n  };\n\n  const envelopeItem =\n    'aggregates' in session ? [{ type: 'sessions' }, session] : [{ type: 'session' }, session.toJSON()];\n\n  return createEnvelope(envelopeHeaders, [envelopeItem]);\n}\n\n/**\n * Create an Envelope from an event.\n */\nfunction createEventEnvelope(\n  event,\n  dsn,\n  metadata,\n  tunnel,\n) {\n  const sdkInfo = getSdkMetadataForEnvelopeHeader(metadata);\n\n  /*\n    Note: Due to TS, event.type may be `replay_event`, theoretically.\n    In practice, we never call `createEventEnvelope` with `replay_event` type,\n    and we'd have to adjust a looot of types to make this work properly.\n    We want to avoid casting this around, as that could lead to bugs (e.g. when we add another type)\n    So the safe choice is to really guard against the replay_event type here.\n  */\n  const eventType = event.type && event.type !== 'replay_event' ? event.type : 'event';\n\n  enhanceEventWithSdkInfo(event, metadata && metadata.sdk);\n\n  const envelopeHeaders = createEventEnvelopeHeaders(event, sdkInfo, tunnel, dsn);\n\n  // Prevent this data (which, if it exists, was used in earlier steps in the processing pipeline) from being sent to\n  // sentry. (Note: Our use of this property comes and goes with whatever we might be debugging, whatever hacks we may\n  // have temporarily added, etc. Even if we don't happen to be using it at some point in the future, let's not get rid\n  // of this `delete`, lest we miss putting it back in the next time the property is in use.)\n  delete event.sdkProcessingMetadata;\n\n  const eventItem = [{ type: eventType }, event];\n  return createEnvelope(envelopeHeaders, [eventItem]);\n}\n\n/**\n * Create envelope from Span item.\n *\n * Takes an optional client and runs spans through `beforeSendSpan` if available.\n */\nfunction createSpanEnvelope(spans, client) {\n  function dscHasRequiredProps(dsc) {\n    return !!dsc.trace_id && !!dsc.public_key;\n  }\n\n  // For the moment we'll obtain the DSC from the first span in the array\n  // This might need to be changed if we permit sending multiple spans from\n  // different segments in one envelope\n  const dsc = getDynamicSamplingContextFromSpan(spans[0]);\n\n  const dsn = client && client.getDsn();\n  const tunnel = client && client.getOptions().tunnel;\n\n  const headers = {\n    sent_at: new Date().toISOString(),\n    ...(dscHasRequiredProps(dsc) && { trace: dsc }),\n    ...(!!tunnel && dsn && { dsn: dsnToString(dsn) }),\n  };\n\n  const beforeSendSpan = client && client.getOptions().beforeSendSpan;\n  const convertToSpanJSON = beforeSendSpan\n    ? (span) => {\n        const spanJson = beforeSendSpan(spanToJSON(span) );\n        if (!spanJson) {\n          showSpanDropWarning();\n        }\n        return spanJson;\n      }\n    : (span) => spanToJSON(span);\n\n  const items = [];\n  for (const span of spans) {\n    const spanJson = convertToSpanJSON(span);\n    if (spanJson) {\n      items.push(createSpanEnvelopeItem(spanJson));\n    }\n  }\n\n  return createEnvelope(headers, items);\n}\n\nexport { createEventEnvelope, createSessionEnvelope, createSpanEnvelope };\n","import { createEnvelope } from './envelope.js';\nimport { dateTimestampInSeconds } from './time.js';\n\n/**\n * Creates client report envelope\n * @param discarded_events An array of discard events\n * @param dsn A DSN that can be set on the header. Optional.\n */\nfunction createClientReportEnvelope(\n  discarded_events,\n  dsn,\n  timestamp,\n) {\n  const clientReportItem = [\n    { type: 'client_report' },\n    {\n      timestamp: timestamp || dateTimestampInSeconds(),\n      discarded_events,\n    },\n  ];\n  return createEnvelope(dsn ? { dsn } : {}, [clientReportItem]);\n}\n\nexport { createClientReportEnvelope };\n","import { SDK_VERSION } from '../utils-hoist/version.js';\n\n/**\n * A builder for the SDK metadata in the options for the SDK initialization.\n *\n * Note: This function is identical to `buildMetadata` in Remix and NextJS and SvelteKit.\n * We don't extract it for bundle size reasons.\n * @see https://github.com/getsentry/sentry-javascript/pull/7404\n * @see https://github.com/getsentry/sentry-javascript/pull/4196\n *\n * If you make changes to this function consider updating the others as well.\n *\n * @param options SDK options object that gets mutated\n * @param names list of package names\n */\nfunction applySdkMetadata(options, name, names = [name], source = 'npm') {\n  const metadata = options._metadata || {};\n\n  if (!metadata.sdk) {\n    metadata.sdk = {\n      name: `sentry.javascript.${name}`,\n      packages: names.map(name => ({\n        name: `${source}:@sentry/${name}`,\n        version: SDK_VERSION,\n      })),\n      version: SDK_VERSION,\n    };\n  }\n\n  options._metadata = metadata;\n}\n\nexport { applySdkMetadata };\n","import { BaseClient, getSDKSource, applySdkMetadata, logger } from '@sentry/core';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { eventFromException, eventFromMessage } from './eventbuilder.js';\nimport { WINDOW } from './helpers.js';\nimport { createUserFeedbackEnvelope } from './userfeedback.js';\n\n/**\n * Configuration options for the Sentry Browser SDK.\n * @see @sentry/core Options for more information.\n */\n\n/**\n * The Sentry Browser SDK Client.\n *\n * @see BrowserOptions for documentation on configuration options.\n * @see SentryClient for usage documentation.\n */\nclass BrowserClient extends BaseClient {\n  /**\n   * Creates a new Browser SDK instance.\n   *\n   * @param options Configuration options for this SDK.\n   */\n   constructor(options) {\n    const opts = {\n      // We default this to true, as it is the safer scenario\n      parentSpanIsAlwaysRootSpan: true,\n      ...options,\n    };\n    const sdkSource = WINDOW.SENTRY_SDK_SOURCE || getSDKSource();\n    applySdkMetadata(opts, 'browser', ['browser'], sdkSource);\n\n    super(opts);\n\n    if (opts.sendClientReports && WINDOW.document) {\n      WINDOW.document.addEventListener('visibilitychange', () => {\n        if (WINDOW.document.visibilityState === 'hidden') {\n          this._flushOutcomes();\n        }\n      });\n    }\n  }\n\n  /**\n   * @inheritDoc\n   */\n   eventFromException(exception, hint) {\n    return eventFromException(this._options.stackParser, exception, hint, this._options.attachStacktrace);\n  }\n\n  /**\n   * @inheritDoc\n   */\n   eventFromMessage(\n    message,\n    level = 'info',\n    hint,\n  ) {\n    return eventFromMessage(this._options.stackParser, message, level, hint, this._options.attachStacktrace);\n  }\n\n  /**\n   * Sends user feedback to Sentry.\n   *\n   * @deprecated Use `captureFeedback` instead.\n   */\n   captureUserFeedback(feedback) {\n    if (!this._isEnabled()) {\n      DEBUG_BUILD && logger.warn('SDK not enabled, will not capture user feedback.');\n      return;\n    }\n\n    const envelope = createUserFeedbackEnvelope(feedback, {\n      metadata: this.getSdkMetadata(),\n      dsn: this.getDsn(),\n      tunnel: this.getOptions().tunnel,\n    });\n\n    // sendEnvelope should not throw\n    // eslint-disable-next-line @typescript-eslint/no-floating-promises\n    this.sendEnvelope(envelope);\n  }\n\n  /**\n   * @inheritDoc\n   */\n   _prepareEvent(event, hint, scope) {\n    event.platform = event.platform || 'javascript';\n    return super._prepareEvent(event, hint, scope);\n  }\n}\n\nexport { BrowserClient };\n","/*\n * This module exists for optimizations in the build process through rollup and terser.  We define some global\n * constants, which can be overridden during build. By guarding certain pieces of code with functions that return these\n * constants, we can control whether or not they appear in the final bundle. (Any code guarded by a false condition will\n * never run, and will hence be dropped during treeshaking.) The two primary uses for this are stripping out calls to\n * `logger` and preventing node-related code from appearing in browser bundles.\n *\n * Attention:\n * This file should not be used to define constants/flags that are intended to be used for tree-shaking conducted by\n * users. These flags should live in their respective packages, as we identified user tooling (specifically webpack)\n * having issues tree-shaking these constants across package boundaries.\n * An example for this is the __SENTRY_DEBUG__ constant. It is declared in each package individually because we want\n * users to be able to shake away expressions that it guards.\n */\n\n/**\n * Figures out if we're building a browser bundle.\n *\n * @returns true if this is a browser bundle build.\n */\nfunction isBrowserBundle() {\n  return typeof __SENTRY_BROWSER_BUNDLE__ !== 'undefined' && !!__SENTRY_BROWSER_BUNDLE__;\n}\n\n/**\n * Get source of SDK.\n */\nfunction getSDKSource() {\n  // This comment is used to identify this line in the CDN bundle build step and replace this with \"return 'cdn';\"\n  /* __SENTRY_SDK_SOURCE__ */ return 'npm';\n}\n\nexport { getSDKSource, isBrowserBundle };\n","import { dsnToString, createEnvelope } from '@sentry/core';\n\n/**\n * Creates an envelope from a user feedback.\n */\nfunction createUserFeedbackEnvelope(\n  feedback,\n  {\n    metadata,\n    tunnel,\n    dsn,\n  }\n\n,\n) {\n  const headers = {\n    event_id: feedback.event_id,\n    sent_at: new Date().toISOString(),\n    ...(metadata &&\n      metadata.sdk && {\n        sdk: {\n          name: metadata.sdk.name,\n          version: metadata.sdk.version,\n        },\n      }),\n    ...(!!tunnel && !!dsn && { dsn: dsnToString(dsn) }),\n  };\n  const item = createUserFeedbackEnvelopeItem(feedback);\n\n  return createEnvelope(headers, [item]);\n}\n\nfunction createUserFeedbackEnvelopeItem(feedback) {\n  const feedbackHeaders = {\n    type: 'user_report',\n  };\n  return [feedbackHeaders, feedback];\n}\n\nexport { createUserFeedbackEnvelope };\n","import { defineIntegration, fill, getFunctionName, getOriginalFunction } from '@sentry/core';\nimport { WINDOW, wrap } from '../helpers.js';\n\nconst DEFAULT_EVENT_TARGET = [\n  'EventTarget',\n  'Window',\n  'Node',\n  'ApplicationCache',\n  'AudioTrackList',\n  'BroadcastChannel',\n  'ChannelMergerNode',\n  'CryptoOperation',\n  'EventSource',\n  'FileReader',\n  'HTMLUnknownElement',\n  'IDBDatabase',\n  'IDBRequest',\n  'IDBTransaction',\n  'KeyOperation',\n  'MediaController',\n  'MessagePort',\n  'ModalWindow',\n  'Notification',\n  'SVGElementInstance',\n  'Screen',\n  'SharedWorker',\n  'TextTrack',\n  'TextTrackCue',\n  'TextTrackList',\n  'WebSocket',\n  'WebSocketWorker',\n  'Worker',\n  'XMLHttpRequest',\n  'XMLHttpRequestEventTarget',\n  'XMLHttpRequestUpload',\n];\n\nconst INTEGRATION_NAME = 'BrowserApiErrors';\n\nconst _browserApiErrorsIntegration = ((options = {}) => {\n  const _options = {\n    XMLHttpRequest: true,\n    eventTarget: true,\n    requestAnimationFrame: true,\n    setInterval: true,\n    setTimeout: true,\n    ...options,\n  };\n\n  return {\n    name: INTEGRATION_NAME,\n    // TODO: This currently only works for the first client this is setup\n    // We may want to adjust this to check for client etc.\n    setupOnce() {\n      if (_options.setTimeout) {\n        fill(WINDOW, 'setTimeout', _wrapTimeFunction);\n      }\n\n      if (_options.setInterval) {\n        fill(WINDOW, 'setInterval', _wrapTimeFunction);\n      }\n\n      if (_options.requestAnimationFrame) {\n        fill(WINDOW, 'requestAnimationFrame', _wrapRAF);\n      }\n\n      if (_options.XMLHttpRequest && 'XMLHttpRequest' in WINDOW) {\n        fill(XMLHttpRequest.prototype, 'send', _wrapXHR);\n      }\n\n      const eventTargetOption = _options.eventTarget;\n      if (eventTargetOption) {\n        const eventTarget = Array.isArray(eventTargetOption) ? eventTargetOption : DEFAULT_EVENT_TARGET;\n        eventTarget.forEach(_wrapEventTarget);\n      }\n    },\n  };\n}) ;\n\n/**\n * Wrap timer functions and event targets to catch errors and provide better meta data.\n */\nconst browserApiErrorsIntegration = defineIntegration(_browserApiErrorsIntegration);\n\nfunction _wrapTimeFunction(original) {\n  return function ( ...args) {\n    const originalCallback = args[0];\n    args[0] = wrap(originalCallback, {\n      mechanism: {\n        data: { function: getFunctionName(original) },\n        handled: false,\n        type: 'instrument',\n      },\n    });\n    return original.apply(this, args);\n  };\n}\n\nfunction _wrapRAF(original) {\n  return function ( callback) {\n    return original.apply(this, [\n      wrap(callback, {\n        mechanism: {\n          data: {\n            function: 'requestAnimationFrame',\n            handler: getFunctionName(original),\n          },\n          handled: false,\n          type: 'instrument',\n        },\n      }),\n    ]);\n  };\n}\n\nfunction _wrapXHR(originalSend) {\n  return function ( ...args) {\n    // eslint-disable-next-line @typescript-eslint/no-this-alias\n    const xhr = this;\n    const xmlHttpRequestProps = ['onload', 'onerror', 'onprogress', 'onreadystatechange'];\n\n    xmlHttpRequestProps.forEach(prop => {\n      if (prop in xhr && typeof xhr[prop] === 'function') {\n        fill(xhr, prop, function (original) {\n          const wrapOptions = {\n            mechanism: {\n              data: {\n                function: prop,\n                handler: getFunctionName(original),\n              },\n              handled: false,\n              type: 'instrument',\n            },\n          };\n\n          // If Instrument integration has been called before BrowserApiErrors, get the name of original function\n          const originalFunction = getOriginalFunction(original);\n          if (originalFunction) {\n            wrapOptions.mechanism.data.handler = getFunctionName(originalFunction);\n          }\n\n          // Otherwise wrap directly\n          return wrap(original, wrapOptions);\n        });\n      }\n    });\n\n    return originalSend.apply(this, args);\n  };\n}\n\nfunction _wrapEventTarget(target) {\n  const globalObject = WINDOW ;\n  const targetObj = globalObject[target];\n  const proto = targetObj && targetObj.prototype;\n\n  // eslint-disable-next-line no-prototype-builtins\n  if (!proto || !proto.hasOwnProperty || !proto.hasOwnProperty('addEventListener')) {\n    return;\n  }\n\n  fill(proto, 'addEventListener', function (original,)\n\n {\n    return function ( eventName, fn, options) {\n      try {\n        if (isEventListenerObject(fn)) {\n          // ESlint disable explanation:\n          //  First, it is generally safe to call `wrap` with an unbound function. Furthermore, using `.bind()` would\n          //  introduce a bug here, because bind returns a new function that doesn't have our\n          //  flags(like __sentry_original__) attached. `wrap` checks for those flags to avoid unnecessary wrapping.\n          //  Without those flags, every call to addEventListener wraps the function again, causing a memory leak.\n          // eslint-disable-next-line @typescript-eslint/unbound-method\n          fn.handleEvent = wrap(fn.handleEvent, {\n            mechanism: {\n              data: {\n                function: 'handleEvent',\n                handler: getFunctionName(fn),\n                target,\n              },\n              handled: false,\n              type: 'instrument',\n            },\n          });\n        }\n      } catch (e2) {\n        // can sometimes get 'Permission denied to access property \"handle Event'\n      }\n\n      return original.apply(this, [\n        eventName,\n        wrap(fn, {\n          mechanism: {\n            data: {\n              function: 'addEventListener',\n              handler: getFunctionName(fn),\n              target,\n            },\n            handled: false,\n            type: 'instrument',\n          },\n        }),\n        options,\n      ]);\n    };\n  });\n\n  fill(proto, 'removeEventListener', function (originalRemoveEventListener,)\n\n {\n    return function ( eventName, fn, options) {\n      /**\n       * There are 2 possible scenarios here:\n       *\n       * 1. Someone passes a callback, which was attached prior to Sentry initialization, or by using unmodified\n       * method, eg. `document.addEventListener.call(el, name, handler). In this case, we treat this function\n       * as a pass-through, and call original `removeEventListener` with it.\n       *\n       * 2. Someone passes a callback, which was attached after Sentry was initialized, which means that it was using\n       * our wrapped version of `addEventListener`, which internally calls `wrap` helper.\n       * This helper \"wraps\" whole callback inside a try/catch statement, and attached appropriate metadata to it,\n       * in order for us to make a distinction between wrapped/non-wrapped functions possible.\n       * If a function was wrapped, it has additional property of `__sentry_wrapped__`, holding the handler.\n       *\n       * When someone adds a handler prior to initialization, and then do it again, but after,\n       * then we have to detach both of them. Otherwise, if we'd detach only wrapped one, it'd be impossible\n       * to get rid of the initial handler and it'd stick there forever.\n       */\n      try {\n        const originalEventHandler = (fn ).__sentry_wrapped__;\n        if (originalEventHandler) {\n          originalRemoveEventListener.call(this, eventName, originalEventHandler, options);\n        }\n      } catch (e) {\n        // ignore, accessing __sentry_wrapped__ will throw in some Selenium environments\n      }\n      return originalRemoveEventListener.call(this, eventName, fn, options);\n    };\n  });\n}\n\nfunction isEventListenerObject(obj) {\n  return typeof (obj ).handleEvent === 'function';\n}\n\nexport { browserApiErrorsIntegration };\n","import { createStackParser, UNKNOWN_FUNCTION } from '@sentry/core';\n\n// This was originally forked from https://github.com/csnover/TraceKit, and was largely\n// re - written as part of raven - js.\n//\n// This code was later copied to the JavaScript mono - repo and further modified and\n// refactored over the years.\n\n\nconst OPERA10_PRIORITY = 10;\nconst OPERA11_PRIORITY = 20;\nconst CHROME_PRIORITY = 30;\nconst WINJS_PRIORITY = 40;\nconst GECKO_PRIORITY = 50;\n\nfunction createFrame(filename, func, lineno, colno) {\n  const frame = {\n    filename,\n    function: func === '<anonymous>' ? UNKNOWN_FUNCTION : func,\n    in_app: true, // All browser frames are considered in_app\n  };\n\n  if (lineno !== undefined) {\n    frame.lineno = lineno;\n  }\n\n  if (colno !== undefined) {\n    frame.colno = colno;\n  }\n\n  return frame;\n}\n\n// This regex matches frames that have no function name (ie. are at the top level of a module).\n// For example \"at http://localhost:5000//script.js:1:126\"\n// Frames _with_ function names usually look as follows: \"at commitLayoutEffects (react-dom.development.js:23426:1)\"\nconst chromeRegexNoFnName = /^\\s*at (\\S+?)(?::(\\d+))(?::(\\d+))\\s*$/i;\n\n// This regex matches all the frames that have a function name.\nconst chromeRegex =\n  /^\\s*at (?:(.+?\\)(?: \\[.+\\])?|.*?) ?\\((?:address at )?)?(?:async )?((?:<anonymous>|[-a-z]+:|.*bundle|\\/)?.*?)(?::(\\d+))?(?::(\\d+))?\\)?\\s*$/i;\n\nconst chromeEvalRegex = /\\((\\S*)(?::(\\d+))(?::(\\d+))\\)/;\n\n// Chromium based browsers: Chrome, Brave, new Opera, new Edge\n// We cannot call this variable `chrome` because it can conflict with global `chrome` variable in certain environments\n// See: https://github.com/getsentry/sentry-javascript/issues/6880\nconst chromeStackParserFn = line => {\n  // If the stack line has no function name, we need to parse it differently\n  const noFnParts = chromeRegexNoFnName.exec(line) ;\n\n  if (noFnParts) {\n    const [, filename, line, col] = noFnParts;\n    return createFrame(filename, UNKNOWN_FUNCTION, +line, +col);\n  }\n\n  const parts = chromeRegex.exec(line) ;\n\n  if (parts) {\n    const isEval = parts[2] && parts[2].indexOf('eval') === 0; // start of line\n\n    if (isEval) {\n      const subMatch = chromeEvalRegex.exec(parts[2]) ;\n\n      if (subMatch) {\n        // throw out eval line/column and use top-most line/column number\n        parts[2] = subMatch[1]; // url\n        parts[3] = subMatch[2]; // line\n        parts[4] = subMatch[3]; // column\n      }\n    }\n\n    // Kamil: One more hack won't hurt us right? Understanding and adding more rules on top of these regexps right now\n    // would be way too time consuming. (TODO: Rewrite whole RegExp to be more readable)\n    const [func, filename] = extractSafariExtensionDetails(parts[1] || UNKNOWN_FUNCTION, parts[2]);\n\n    return createFrame(filename, func, parts[3] ? +parts[3] : undefined, parts[4] ? +parts[4] : undefined);\n  }\n\n  return;\n};\n\nconst chromeStackLineParser = [CHROME_PRIORITY, chromeStackParserFn];\n\n// gecko regex: `(?:bundle|\\d+\\.js)`: `bundle` is for react native, `\\d+\\.js` also but specifically for ram bundles because it\n// generates filenames without a prefix like `file://` the filenames in the stacktrace are just 42.js\n// We need this specific case for now because we want no other regex to match.\nconst geckoREgex =\n  /^\\s*(.*?)(?:\\((.*?)\\))?(?:^|@)?((?:[-a-z]+)?:\\/.*?|\\[native code\\]|[^@]*(?:bundle|\\d+\\.js)|\\/[\\w\\-. /=]+)(?::(\\d+))?(?::(\\d+))?\\s*$/i;\nconst geckoEvalRegex = /(\\S+) line (\\d+)(?: > eval line \\d+)* > eval/i;\n\nconst gecko = line => {\n  const parts = geckoREgex.exec(line) ;\n\n  if (parts) {\n    const isEval = parts[3] && parts[3].indexOf(' > eval') > -1;\n    if (isEval) {\n      const subMatch = geckoEvalRegex.exec(parts[3]) ;\n\n      if (subMatch) {\n        // throw out eval line/column and use top-most line number\n        parts[1] = parts[1] || 'eval';\n        parts[3] = subMatch[1];\n        parts[4] = subMatch[2];\n        parts[5] = ''; // no column when eval\n      }\n    }\n\n    let filename = parts[3];\n    let func = parts[1] || UNKNOWN_FUNCTION;\n    [func, filename] = extractSafariExtensionDetails(func, filename);\n\n    return createFrame(filename, func, parts[4] ? +parts[4] : undefined, parts[5] ? +parts[5] : undefined);\n  }\n\n  return;\n};\n\nconst geckoStackLineParser = [GECKO_PRIORITY, gecko];\n\nconst winjsRegex = /^\\s*at (?:((?:\\[object object\\])?.+) )?\\(?((?:[-a-z]+):.*?):(\\d+)(?::(\\d+))?\\)?\\s*$/i;\n\nconst winjs = line => {\n  const parts = winjsRegex.exec(line) ;\n\n  return parts\n    ? createFrame(parts[2], parts[1] || UNKNOWN_FUNCTION, +parts[3], parts[4] ? +parts[4] : undefined)\n    : undefined;\n};\n\nconst winjsStackLineParser = [WINJS_PRIORITY, winjs];\n\nconst opera10Regex = / line (\\d+).*script (?:in )?(\\S+)(?:: in function (\\S+))?$/i;\n\nconst opera10 = line => {\n  const parts = opera10Regex.exec(line) ;\n  return parts ? createFrame(parts[2], parts[3] || UNKNOWN_FUNCTION, +parts[1]) : undefined;\n};\n\nconst opera10StackLineParser = [OPERA10_PRIORITY, opera10];\n\nconst opera11Regex =\n  / line (\\d+), column (\\d+)\\s*(?:in (?:<anonymous function: ([^>]+)>|([^)]+))\\(.*\\))? in (.*):\\s*$/i;\n\nconst opera11 = line => {\n  const parts = opera11Regex.exec(line) ;\n  return parts ? createFrame(parts[5], parts[3] || parts[4] || UNKNOWN_FUNCTION, +parts[1], +parts[2]) : undefined;\n};\n\nconst opera11StackLineParser = [OPERA11_PRIORITY, opera11];\n\nconst defaultStackLineParsers = [chromeStackLineParser, geckoStackLineParser];\n\nconst defaultStackParser = createStackParser(...defaultStackLineParsers);\n\n/**\n * Safari web extensions, starting version unknown, can produce \"frames-only\" stacktraces.\n * What it means, is that instead of format like:\n *\n * Error: wat\n *   at function@url:row:col\n *   at function@url:row:col\n *   at function@url:row:col\n *\n * it produces something like:\n *\n *   function@url:row:col\n *   function@url:row:col\n *   function@url:row:col\n *\n * Because of that, it won't be captured by `chrome` RegExp and will fall into `Gecko` branch.\n * This function is extracted so that we can use it in both places without duplicating the logic.\n * Unfortunately \"just\" changing RegExp is too complicated now and making it pass all tests\n * and fix this case seems like an impossible, or at least way too time-consuming task.\n */\nconst extractSafariExtensionDetails = (func, filename) => {\n  const isSafariExtension = func.indexOf('safari-extension') !== -1;\n  const isSafariWebExtension = func.indexOf('safari-web-extension') !== -1;\n\n  return isSafariExtension || isSafariWebExtension\n    ? [\n        func.indexOf('@') !== -1 ? (func.split('@')[0] ) : UNKNOWN_FUNCTION,\n        isSafariExtension ? `safari-extension:${filename}` : `safari-web-extension:${filename}`,\n      ]\n    : [func, filename];\n};\n\nexport { chromeStackLineParser, defaultStackLineParsers, defaultStackParser, geckoStackLineParser, opera10StackLineParser, opera11StackLineParser, winjsStackLineParser };\n","/**\n * This serves as a build time flag that will be true by default, but false in non-debug builds or if users replace `__SENTRY_DEBUG__` in their generated code.\n *\n * ATTENTION: This constant must never cross package boundaries (i.e. be exported) to guarantee that it can be used for tree shaking.\n */\nconst DEBUG_BUILD = (typeof __SENTRY_DEBUG__ === 'undefined' || __SENTRY_DEBUG__);\n\nexport { DEBUG_BUILD };\n","import { isNativeFunction, logger } from '@sentry/core';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { WINDOW } from './types.js';\n\n/**\n * We generally want to use window.fetch / window.setTimeout.\n * However, in some cases this may be wrapped (e.g. by Zone.js for Angular),\n * so we try to get an unpatched version of this from a sandboxed iframe.\n */\n\nconst cachedImplementations = {};\n\n/**\n * Get the native implementation of a browser function.\n *\n * This can be used to ensure we get an unwrapped version of a function, in cases where a wrapped function can lead to problems.\n *\n * The following methods can be retrieved:\n * - `setTimeout`: This can be wrapped by e.g. Angular, causing change detection to be triggered.\n * - `fetch`: This can be wrapped by e.g. ad-blockers, causing an infinite loop when a request is blocked.\n */\nfunction getNativeImplementation(\n  name,\n) {\n  const cached = cachedImplementations[name];\n  if (cached) {\n    return cached;\n  }\n\n  let impl = WINDOW[name] ;\n\n  // Fast path to avoid DOM I/O\n  if (isNativeFunction(impl)) {\n    return (cachedImplementations[name] = impl.bind(WINDOW) );\n  }\n\n  const document = WINDOW.document;\n  // eslint-disable-next-line deprecation/deprecation\n  if (document && typeof document.createElement === 'function') {\n    try {\n      const sandbox = document.createElement('iframe');\n      sandbox.hidden = true;\n      document.head.appendChild(sandbox);\n      const contentWindow = sandbox.contentWindow;\n      if (contentWindow && contentWindow[name]) {\n        impl = contentWindow[name] ;\n      }\n      document.head.removeChild(sandbox);\n    } catch (e) {\n      // Could not create sandbox iframe, just use window.xxx\n      DEBUG_BUILD && logger.warn(`Could not create sandbox iframe for ${name} check, bailing to window.${name}: `, e);\n    }\n  }\n\n  // Sanity check: This _should_ not happen, but if it does, we just skip caching...\n  // This can happen e.g. in tests where fetch may not be available in the env, or similar.\n  if (!impl) {\n    return impl;\n  }\n\n  return (cachedImplementations[name] = impl.bind(WINDOW) );\n}\n\n/** Clear a cached implementation. */\nfunction clearCachedImplementation(name) {\n  cachedImplementations[name] = undefined;\n}\n\n/**\n * A special usecase for incorrectly wrapped Fetch APIs in conjunction with ad-blockers.\n * Whenever someone wraps the Fetch API and returns the wrong promise chain,\n * this chain becomes orphaned and there is no possible way to capture it's rejections\n * other than allowing it bubble up to this very handler. eg.\n *\n * const f = window.fetch;\n * window.fetch = function () {\n *   const p = f.apply(this, arguments);\n *\n *   p.then(function() {\n *     console.log('hi.');\n *   });\n *\n *   return p;\n * }\n *\n * `p.then(function () { ... })` is producing a completely separate promise chain,\n * however, what's returned is `p` - the result of original `fetch` call.\n *\n * This mean, that whenever we use the Fetch API to send our own requests, _and_\n * some ad-blocker blocks it, this orphaned chain will _always_ reject,\n * effectively causing another event to be captured.\n * This makes a whole process become an infinite loop, which we need to somehow\n * deal with, and break it in one way or another.\n *\n * To deal with this issue, we are making sure that we _always_ use the real\n * browser Fetch API, instead of relying on what `window.fetch` exposes.\n * The only downside to this would be missing our own requests as breadcrumbs,\n * but because we are already not doing this, it should be just fine.\n *\n * Possible failed fetch error messages per-browser:\n *\n * Chrome:  Failed to fetch\n * Edge:    Failed to Fetch\n * Firefox: NetworkError when attempting to fetch resource\n * Safari:  resource blocked by content blocker\n */\nfunction fetch(...rest) {\n  return getNativeImplementation('fetch')(...rest);\n}\n\n/**\n * Get an unwrapped `setTimeout` method.\n * This ensures that even if e.g. Angular wraps `setTimeout`, we get the native implementation,\n * avoiding triggering change detection.\n */\nfunction setTimeout(...rest) {\n  return getNativeImplementation('setTimeout')(...rest);\n}\n\nexport { clearCachedImplementation, fetch, getNativeImplementation, setTimeout };\n","// Intentionally keeping the key broad, as we don't know for sure what rate limit headers get returned from backend\n\nconst DEFAULT_RETRY_AFTER = 60 * 1000; // 60 seconds\n\n/**\n * Extracts Retry-After value from the request header or returns default value\n * @param header string representation of 'Retry-After' header\n * @param now current unix timestamp\n *\n */\nfunction parseRetryAfterHeader(header, now = Date.now()) {\n  const headerDelay = parseInt(`${header}`, 10);\n  if (!isNaN(headerDelay)) {\n    return headerDelay * 1000;\n  }\n\n  const headerDate = Date.parse(`${header}`);\n  if (!isNaN(headerDate)) {\n    return headerDate - now;\n  }\n\n  return DEFAULT_RETRY_AFTER;\n}\n\n/**\n * Gets the time that the given category is disabled until for rate limiting.\n * In case no category-specific limit is set but a general rate limit across all categories is active,\n * that time is returned.\n *\n * @return the time in ms that the category is disabled until or 0 if there's no active rate limit.\n */\nfunction disabledUntil(limits, dataCategory) {\n  return limits[dataCategory] || limits.all || 0;\n}\n\n/**\n * Checks if a category is rate limited\n */\nfunction isRateLimited(limits, dataCategory, now = Date.now()) {\n  return disabledUntil(limits, dataCategory) > now;\n}\n\n/**\n * Update ratelimits from incoming headers.\n *\n * @return the updated RateLimits object.\n */\nfunction updateRateLimits(\n  limits,\n  { statusCode, headers },\n  now = Date.now(),\n) {\n  const updatedRateLimits = {\n    ...limits,\n  };\n\n  // \"The name is case-insensitive.\"\n  // https://developer.mozilla.org/en-US/docs/Web/API/Headers/get\n  const rateLimitHeader = headers && headers['x-sentry-rate-limits'];\n  const retryAfterHeader = headers && headers['retry-after'];\n\n  if (rateLimitHeader) {\n    /**\n     * rate limit headers are of the form\n     *     <header>,<header>,..\n     * where each <header> is of the form\n     *     <retry_after>: <categories>: <scope>: <reason_code>: <namespaces>\n     * where\n     *     <retry_after> is a delay in seconds\n     *     <categories> is the event type(s) (error, transaction, etc) being rate limited and is of the form\n     *         <category>;<category>;...\n     *     <scope> is what's being limited (org, project, or key) - ignored by SDK\n     *     <reason_code> is an arbitrary string like \"org_quota\" - ignored by SDK\n     *     <namespaces> Semicolon-separated list of metric namespace identifiers. Defines which namespace(s) will be affected.\n     *         Only present if rate limit applies to the metric_bucket data category.\n     */\n    for (const limit of rateLimitHeader.trim().split(',')) {\n      const [retryAfter, categories, , , namespaces] = limit.split(':', 5) ;\n      const headerDelay = parseInt(retryAfter, 10);\n      const delay = (!isNaN(headerDelay) ? headerDelay : 60) * 1000; // 60sec default\n      if (!categories) {\n        updatedRateLimits.all = now + delay;\n      } else {\n        for (const category of categories.split(';')) {\n          if (category === 'metric_bucket') {\n            // namespaces will be present when category === 'metric_bucket'\n            if (!namespaces || namespaces.split(';').includes('custom')) {\n              updatedRateLimits[category] = now + delay;\n            }\n          } else {\n            updatedRateLimits[category] = now + delay;\n          }\n        }\n      }\n    }\n  } else if (retryAfterHeader) {\n    updatedRateLimits.all = now + parseRetryAfterHeader(retryAfterHeader, now);\n  } else if (statusCode === 429) {\n    updatedRateLimits.all = now + 60 * 1000;\n  }\n\n  return updatedRateLimits;\n}\n\nexport { DEFAULT_RETRY_AFTER, disabledUntil, isRateLimited, parseRetryAfterHeader, updateRateLimits };\n","import { DEBUG_BUILD } from '../debug-build.js';\nimport { forEachEnvelopeItem, envelopeItemTypeToDataCategory, createEnvelope, serializeEnvelope } from '../utils-hoist/envelope.js';\nimport { SentryError } from '../utils-hoist/error.js';\nimport { logger } from '../utils-hoist/logger.js';\nimport { makePromiseBuffer } from '../utils-hoist/promisebuffer.js';\nimport { isRateLimited, updateRateLimits } from '../utils-hoist/ratelimit.js';\nimport { resolvedSyncPromise } from '../utils-hoist/syncpromise.js';\n\nconst DEFAULT_TRANSPORT_BUFFER_SIZE = 64;\n\n/**\n * Creates an instance of a Sentry `Transport`\n *\n * @param options\n * @param makeRequest\n */\nfunction createTransport(\n  options,\n  makeRequest,\n  buffer = makePromiseBuffer(\n    options.bufferSize || DEFAULT_TRANSPORT_BUFFER_SIZE,\n  ),\n) {\n  let rateLimits = {};\n  const flush = (timeout) => buffer.drain(timeout);\n\n  function send(envelope) {\n    const filteredEnvelopeItems = [];\n\n    // Drop rate limited items from envelope\n    forEachEnvelopeItem(envelope, (item, type) => {\n      const dataCategory = envelopeItemTypeToDataCategory(type);\n      if (isRateLimited(rateLimits, dataCategory)) {\n        const event = getEventForEnvelopeItem(item, type);\n        options.recordDroppedEvent('ratelimit_backoff', dataCategory, event);\n      } else {\n        filteredEnvelopeItems.push(item);\n      }\n    });\n\n    // Skip sending if envelope is empty after filtering out rate limited events\n    if (filteredEnvelopeItems.length === 0) {\n      return resolvedSyncPromise({});\n    }\n\n    const filteredEnvelope = createEnvelope(envelope[0], filteredEnvelopeItems );\n\n    // Creates client report for each item in an envelope\n    const recordEnvelopeLoss = (reason) => {\n      forEachEnvelopeItem(filteredEnvelope, (item, type) => {\n        const event = getEventForEnvelopeItem(item, type);\n        options.recordDroppedEvent(reason, envelopeItemTypeToDataCategory(type), event);\n      });\n    };\n\n    const requestTask = () =>\n      makeRequest({ body: serializeEnvelope(filteredEnvelope) }).then(\n        response => {\n          // We don't want to throw on NOK responses, but we want to at least log them\n          if (response.statusCode !== undefined && (response.statusCode < 200 || response.statusCode >= 300)) {\n            DEBUG_BUILD && logger.warn(`Sentry responded with status code ${response.statusCode} to sent event.`);\n          }\n\n          rateLimits = updateRateLimits(rateLimits, response);\n          return response;\n        },\n        error => {\n          recordEnvelopeLoss('network_error');\n          throw error;\n        },\n      );\n\n    return buffer.add(requestTask).then(\n      result => result,\n      error => {\n        if (error instanceof SentryError) {\n          DEBUG_BUILD && logger.error('Skipped sending event because buffer is full.');\n          recordEnvelopeLoss('queue_overflow');\n          return resolvedSyncPromise({});\n        } else {\n          throw error;\n        }\n      },\n    );\n  }\n\n  return {\n    send,\n    flush,\n  };\n}\n\nfunction getEventForEnvelopeItem(item, type) {\n  if (type !== 'event' && type !== 'transaction') {\n    return undefined;\n  }\n\n  return Array.isArray(item) ? (item )[1] : undefined;\n}\n\nexport { DEFAULT_TRANSPORT_BUFFER_SIZE, createTransport };\n","import { SentryError } from './error.js';\nimport { rejectedSyncPromise, SyncPromise, resolvedSyncPromise } from './syncpromise.js';\n\n/**\n * Creates an new PromiseBuffer object with the specified limit\n * @param limit max number of promises that can be stored in the buffer\n */\nfunction makePromiseBuffer(limit) {\n  const buffer = [];\n\n  function isReady() {\n    return limit === undefined || buffer.length < limit;\n  }\n\n  /**\n   * Remove a promise from the queue.\n   *\n   * @param task Can be any PromiseLike<T>\n   * @returns Removed promise.\n   */\n  function remove(task) {\n    return buffer.splice(buffer.indexOf(task), 1)[0] || Promise.resolve(undefined);\n  }\n\n  /**\n   * Add a promise (representing an in-flight action) to the queue, and set it to remove itself on fulfillment.\n   *\n   * @param taskProducer A function producing any PromiseLike<T>; In previous versions this used to be `task:\n   *        PromiseLike<T>`, but under that model, Promises were instantly created on the call-site and their executor\n   *        functions therefore ran immediately. Thus, even if the buffer was full, the action still happened. By\n   *        requiring the promise to be wrapped in a function, we can defer promise creation until after the buffer\n   *        limit check.\n   * @returns The original promise.\n   */\n  function add(taskProducer) {\n    if (!isReady()) {\n      return rejectedSyncPromise(new SentryError('Not adding Promise because buffer limit was reached.'));\n    }\n\n    // start the task and add its promise to the queue\n    const task = taskProducer();\n    if (buffer.indexOf(task) === -1) {\n      buffer.push(task);\n    }\n    void task\n      .then(() => remove(task))\n      // Use `then(null, rejectionHandler)` rather than `catch(rejectionHandler)` so that we can use `PromiseLike`\n      // rather than `Promise`. `PromiseLike` doesn't have a `.catch` method, making its polyfill smaller. (ES5 didn't\n      // have promises, so TS has to polyfill when down-compiling.)\n      .then(null, () =>\n        remove(task).then(null, () => {\n          // We have to add another catch here because `remove()` starts a new promise chain.\n        }),\n      );\n    return task;\n  }\n\n  /**\n   * Wait for all promises in the queue to resolve or for timeout to expire, whichever comes first.\n   *\n   * @param timeout The time, in ms, after which to resolve to `false` if the queue is still non-empty. Passing `0` (or\n   * not passing anything) will make the promise wait as long as it takes for the queue to drain before resolving to\n   * `true`.\n   * @returns A promise which will resolve to `true` if the queue is already empty or drains before the timeout, and\n   * `false` otherwise\n   */\n  function drain(timeout) {\n    return new SyncPromise((resolve, reject) => {\n      let counter = buffer.length;\n\n      if (!counter) {\n        return resolve(true);\n      }\n\n      // wait for `timeout` ms and then resolve to `false` (if not cancelled first)\n      const capturedSetTimeout = setTimeout(() => {\n        if (timeout && timeout > 0) {\n          resolve(false);\n        }\n      }, timeout);\n\n      // if all promises resolve in time, cancel the timer and resolve to `true`\n      buffer.forEach(item => {\n        void resolvedSyncPromise(item).then(() => {\n          if (!--counter) {\n            clearTimeout(capturedSetTimeout);\n            resolve(true);\n          }\n        }, reject);\n      });\n    });\n  }\n\n  return {\n    $: buffer,\n    add,\n    drain,\n  };\n}\n\nexport { makePromiseBuffer };\n","import { getNativeImplementation, clearCachedImplementation } from '@sentry-internal/browser-utils';\nimport { createTransport, rejectedSyncPromise } from '@sentry/core';\n\n/**\n * Creates a Transport that uses the Fetch API to send events to Sentry.\n */\nfunction makeFetchTransport(\n  options,\n  nativeFetch = getNativeImplementation('fetch'),\n) {\n  let pendingBodySize = 0;\n  let pendingCount = 0;\n\n  function makeRequest(request) {\n    const requestSize = request.body.length;\n    pendingBodySize += requestSize;\n    pendingCount++;\n\n    const requestOptions = {\n      body: request.body,\n      method: 'POST',\n      referrerPolicy: 'origin',\n      headers: options.headers,\n      // Outgoing requests are usually cancelled when navigating to a different page, causing a \"TypeError: Failed to\n      // fetch\" error and sending a \"network_error\" client-outcome - in Chrome, the request status shows \"(cancelled)\".\n      // The `keepalive` flag keeps outgoing requests alive, even when switching pages. We want this since we're\n      // frequently sending events right before the user is switching pages (eg. when finishing navigation transactions).\n      // Gotchas:\n      // - `keepalive` isn't supported by Firefox\n      // - As per spec (https://fetch.spec.whatwg.org/#http-network-or-cache-fetch):\n      //   If the sum of contentLength and inflightKeepaliveBytes is greater than 64 kibibytes, then return a network error.\n      //   We will therefore only activate the flag when we're below that limit.\n      // There is also a limit of requests that can be open at the same time, so we also limit this to 15\n      // See https://github.com/getsentry/sentry-javascript/pull/7553 for details\n      keepalive: pendingBodySize <= 60000 && pendingCount < 15,\n      ...options.fetchOptions,\n    };\n\n    if (!nativeFetch) {\n      clearCachedImplementation('fetch');\n      return rejectedSyncPromise('No fetch implementation available');\n    }\n\n    try {\n      // TODO: This may need a `suppressTracing` call in the future when we switch the browser SDK to OTEL\n      return nativeFetch(options.url, requestOptions).then(response => {\n        pendingBodySize -= requestSize;\n        pendingCount--;\n        return {\n          statusCode: response.status,\n          headers: {\n            'x-sentry-rate-limits': response.headers.get('X-Sentry-Rate-Limits'),\n            'retry-after': response.headers.get('Retry-After'),\n          },\n        };\n      });\n    } catch (e) {\n      clearCachedImplementation('fetch');\n      pendingBodySize -= requestSize;\n      pendingCount--;\n      return rejectedSyncPromise(e);\n    }\n  }\n\n  return createTransport(options, makeRequest);\n}\n\nexport { makeFetchTransport };\n","import { addHistoryInstrumentationHandler } from '@sentry-internal/browser-utils';\nimport { inboundFiltersIntegration, functionToStringIntegration, dedupeIntegration, consoleSandbox, supportsFetch, logger, stackParserFromStackParserOptions, getIntegrationsToSetup, initAndBind, getCurrentScope, lastEventId, getReportDialogEndpoint, startSession, captureSession, getClient } from '@sentry/core';\nimport { BrowserClient } from './client.js';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { WINDOW } from './helpers.js';\nimport { breadcrumbsIntegration } from './integrations/breadcrumbs.js';\nimport { browserApiErrorsIntegration } from './integrations/browserapierrors.js';\nimport { globalHandlersIntegration } from './integrations/globalhandlers.js';\nimport { httpContextIntegration } from './integrations/httpcontext.js';\nimport { linkedErrorsIntegration } from './integrations/linkederrors.js';\nimport { defaultStackParser } from './stack-parsers.js';\nimport { makeFetchTransport } from './transports/fetch.js';\n\n/** Get the default integrations for the browser SDK. */\nfunction getDefaultIntegrations(_options) {\n  /**\n   * Note: Please make sure this stays in sync with Angular SDK, which re-exports\n   * `getDefaultIntegrations` but with an adjusted set of integrations.\n   */\n  return [\n    inboundFiltersIntegration(),\n    functionToStringIntegration(),\n    browserApiErrorsIntegration(),\n    breadcrumbsIntegration(),\n    globalHandlersIntegration(),\n    linkedErrorsIntegration(),\n    dedupeIntegration(),\n    httpContextIntegration(),\n  ];\n}\n\nfunction applyDefaultOptions(optionsArg = {}) {\n  const defaultOptions = {\n    defaultIntegrations: getDefaultIntegrations(),\n    release:\n      typeof __SENTRY_RELEASE__ === 'string' // This allows build tooling to find-and-replace __SENTRY_RELEASE__ to inject a release value\n        ? __SENTRY_RELEASE__\n        : WINDOW.SENTRY_RELEASE && WINDOW.SENTRY_RELEASE.id // This supports the variable that sentry-webpack-plugin injects\n          ? WINDOW.SENTRY_RELEASE.id\n          : undefined,\n    autoSessionTracking: true,\n    sendClientReports: true,\n  };\n\n  // TODO: Instead of dropping just `defaultIntegrations`, we should simply\n  // call `dropUndefinedKeys` on the entire `optionsArg`.\n  // However, for this to work we need to adjust the `hasTracingEnabled()` logic\n  // first as it differentiates between `undefined` and the key not being in the object.\n  if (optionsArg.defaultIntegrations == null) {\n    delete optionsArg.defaultIntegrations;\n  }\n\n  return { ...defaultOptions, ...optionsArg };\n}\n\nfunction shouldShowBrowserExtensionError() {\n  const windowWithMaybeExtension =\n    typeof WINDOW.window !== 'undefined' && (WINDOW );\n  if (!windowWithMaybeExtension) {\n    // No need to show the error if we're not in a browser window environment (e.g. service workers)\n    return false;\n  }\n\n  const extensionKey = windowWithMaybeExtension.chrome ? 'chrome' : 'browser';\n  const extensionObject = windowWithMaybeExtension[extensionKey];\n\n  const runtimeId = extensionObject && extensionObject.runtime && extensionObject.runtime.id;\n  const href = (WINDOW.location && WINDOW.location.href) || '';\n\n  const extensionProtocols = ['chrome-extension:', 'moz-extension:', 'ms-browser-extension:', 'safari-web-extension:'];\n\n  // Running the SDK in a dedicated extension page and calling Sentry.init is fine; no risk of data leakage\n  const isDedicatedExtensionPage =\n    !!runtimeId && WINDOW === WINDOW.top && extensionProtocols.some(protocol => href.startsWith(`${protocol}//`));\n\n  // Running the SDK in NW.js, which appears like a browser extension but isn't, is also fine\n  // see: https://github.com/getsentry/sentry-javascript/issues/12668\n  const isNWjs = typeof windowWithMaybeExtension.nw !== 'undefined';\n\n  return !!runtimeId && !isDedicatedExtensionPage && !isNWjs;\n}\n\n/**\n * A magic string that build tooling can leverage in order to inject a release value into the SDK.\n */\n\n/**\n * The Sentry Browser SDK Client.\n *\n * To use this SDK, call the {@link init} function as early as possible when\n * loading the web page. To set context information or send manual events, use\n * the provided methods.\n *\n * @example\n *\n * ```\n *\n * import { init } from '@sentry/browser';\n *\n * init({\n *   dsn: '__DSN__',\n *   // ...\n * });\n * ```\n *\n * @example\n * ```\n *\n * import { addBreadcrumb } from '@sentry/browser';\n * addBreadcrumb({\n *   message: 'My Breadcrumb',\n *   // ...\n * });\n * ```\n *\n * @example\n *\n * ```\n *\n * import * as Sentry from '@sentry/browser';\n * Sentry.captureMessage('Hello, world!');\n * Sentry.captureException(new Error('Good bye'));\n * Sentry.captureEvent({\n *   message: 'Manual',\n *   stacktrace: [\n *     // ...\n *   ],\n * });\n * ```\n *\n * @see {@link BrowserOptions} for documentation on configuration options.\n */\nfunction init(browserOptions = {}) {\n  const options = applyDefaultOptions(browserOptions);\n\n  if (!options.skipBrowserExtensionCheck && shouldShowBrowserExtensionError()) {\n    consoleSandbox(() => {\n      // eslint-disable-next-line no-console\n      console.error(\n        '[Sentry] You cannot run Sentry this way in a browser extension, check: https://docs.sentry.io/platforms/javascript/best-practices/browser-extensions/',\n      );\n    });\n    return;\n  }\n\n  if (DEBUG_BUILD) {\n    if (!supportsFetch()) {\n      logger.warn(\n        'No Fetch API detected. The Sentry SDK requires a Fetch API compatible environment to send events. Please add a Fetch API polyfill.',\n      );\n    }\n  }\n  const clientOptions = {\n    ...options,\n    stackParser: stackParserFromStackParserOptions(options.stackParser || defaultStackParser),\n    integrations: getIntegrationsToSetup(options),\n    transport: options.transport || makeFetchTransport,\n  };\n\n  const client = initAndBind(BrowserClient, clientOptions);\n\n  if (options.autoSessionTracking) {\n    startSessionTracking();\n  }\n\n  return client;\n}\n\n/**\n * All properties the report dialog supports\n */\n\n/**\n * Present the user with a report dialog.\n *\n * @param options Everything is optional, we try to fetch all info need from the global scope.\n */\nfunction showReportDialog(options = {}) {\n  // doesn't work without a document (React Native)\n  if (!WINDOW.document) {\n    DEBUG_BUILD && logger.error('Global document not defined in showReportDialog call');\n    return;\n  }\n\n  const scope = getCurrentScope();\n  const client = scope.getClient();\n  const dsn = client && client.getDsn();\n\n  if (!dsn) {\n    DEBUG_BUILD && logger.error('DSN not configured for showReportDialog call');\n    return;\n  }\n\n  if (scope) {\n    options.user = {\n      ...scope.getUser(),\n      ...options.user,\n    };\n  }\n\n  if (!options.eventId) {\n    const eventId = lastEventId();\n    if (eventId) {\n      options.eventId = eventId;\n    }\n  }\n\n  const script = WINDOW.document.createElement('script');\n  script.async = true;\n  script.crossOrigin = 'anonymous';\n  script.src = getReportDialogEndpoint(dsn, options);\n\n  if (options.onLoad) {\n    script.onload = options.onLoad;\n  }\n\n  const { onClose } = options;\n  if (onClose) {\n    const reportDialogClosedMessageHandler = (event) => {\n      if (event.data === '__sentry_reportdialog_closed__') {\n        try {\n          onClose();\n        } finally {\n          WINDOW.removeEventListener('message', reportDialogClosedMessageHandler);\n        }\n      }\n    };\n    WINDOW.addEventListener('message', reportDialogClosedMessageHandler);\n  }\n\n  const injectionPoint = WINDOW.document.head || WINDOW.document.body;\n  if (injectionPoint) {\n    injectionPoint.appendChild(script);\n  } else {\n    DEBUG_BUILD && logger.error('Not injecting report dialog. No injection point found in HTML');\n  }\n}\n\n/**\n * This function is here to be API compatible with the loader.\n * @hidden\n */\nfunction forceLoad() {\n  // Noop\n}\n\n/**\n * This function is here to be API compatible with the loader.\n * @hidden\n */\nfunction onLoad(callback) {\n  callback();\n}\n\n/**\n * Enable automatic Session Tracking for the initial page load.\n */\nfunction startSessionTracking() {\n  if (typeof WINDOW.document === 'undefined') {\n    DEBUG_BUILD && logger.warn('Session tracking in non-browser environment with @sentry/browser is not supported.');\n    return;\n  }\n\n  // The session duration for browser sessions does not track a meaningful\n  // concept that can be used as a metric.\n  // Automatically captured sessions are akin to page views, and thus we\n  // discard their duration.\n  startSession({ ignoreDuration: true });\n  captureSession();\n\n  // We want to create a session for every navigation as well\n  addHistoryInstrumentationHandler(({ from, to }) => {\n    // Don't create an additional session for the initial route or if the location did not change\n    if (from !== undefined && from !== to) {\n      startSession({ ignoreDuration: true });\n      captureSession();\n    }\n  });\n}\n\n/**\n * Captures user feedback and sends it to Sentry.\n *\n * @deprecated Use `captureFeedback` instead.\n */\nfunction captureUserFeedback(feedback) {\n  const client = getClient();\n  if (client) {\n    // eslint-disable-next-line deprecation/deprecation\n    client.captureUserFeedback(feedback);\n  }\n}\n\nexport { captureUserFeedback, forceLoad, getDefaultIntegrations, init, onLoad, showReportDialog };\n","import { getCurrentScope } from './currentScopes.js';\nimport { DEBUG_BUILD } from './debug-build.js';\nimport { logger, consoleSandbox } from './utils-hoist/logger.js';\n\n/** A class object that can instantiate Client objects. */\n\n/**\n * Internal function to create a new SDK client instance. The client is\n * installed and then bound to the current scope.\n *\n * @param clientClass The client class to instantiate.\n * @param options Options to pass to the client.\n */\nfunction initAndBind(\n  clientClass,\n  options,\n) {\n  if (options.debug === true) {\n    if (DEBUG_BUILD) {\n      logger.enable();\n    } else {\n      // use `console.warn` rather than `logger.warn` since by non-debug bundles have all `logger.x` statements stripped\n      consoleSandbox(() => {\n        // eslint-disable-next-line no-console\n        console.warn('[Sentry] Cannot initialize SDK with `debug` option using a non-debug bundle.');\n      });\n    }\n  }\n  const scope = getCurrentScope();\n  scope.update(options.initialScope);\n\n  const client = new clientClass(options);\n  setCurrentClient(client);\n  client.init();\n  return client;\n}\n\n/**\n * Make the given client the current client.\n */\nfunction setCurrentClient(client) {\n  getCurrentScope().setClient(client);\n}\n\nexport { initAndBind, setCurrentClient };\n","import * as Sentry from '@sentry/browser';\nimport { breadcrumbsIntegration, globalHandlersIntegration, linkedErrorsIntegration, httpContextIntegration, init as init$1, setContext, browserTracingIntegration as browserTracingIntegration$1, spanToJSON, SEMANTIC_ATTRIBUTE_SENTRY_SOURCE, SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN, getClient, startBrowserTracingNavigationSpan, startInactiveSpan, getCurrentScope, getActiveSpan, getRootSpan } from '@sentry/browser';\nexport * from '@sentry/browser';\nimport * as i0 from '@angular/core';\nimport { VERSION, Injectable, Inject, Directive, Input, NgModule } from '@angular/core';\nimport { inboundFiltersIntegration, functionToStringIntegration, dedupeIntegration, applySdkMetadata, logger, isString, consoleSandbox, stripUrlQueryAndFragment, timestampInSeconds } from '@sentry/core';\nimport { HttpErrorResponse } from '@angular/common/http';\nimport * as i1 from '@angular/router';\nimport { NavigationStart, ResolveEnd, NavigationEnd, NavigationCancel, NavigationError } from '@angular/router';\nimport { Subscription } from 'rxjs';\nimport { filter, tap } from 'rxjs/operators';\n\n/*\n * This file defines flags and constants that can be modified during compile time in order to facilitate tree shaking\n * for users.\n *\n * We define \"magic strings\" like `__SENTRY_DEBUG__` that may get replaced with actual values during our, or the user's\n * build process. Take care when introducing new flags - they must not throw if they are not replaced. See the Debug\n * Build Flags section in CONTRIBUTING.md.\n */\n/** Flag that is true for debug builds, false otherwise. */\nconst IS_DEBUG_BUILD = typeof __SENTRY_DEBUG__ === 'undefined' ? true : __SENTRY_DEBUG__;\n\n/**\n * Get the default integrations for the Angular SDK.\n */\nfunction getDefaultIntegrations() {\n    // Don't include the BrowserApiErrors integration as it interferes with the Angular SDK's `ErrorHandler`:\n    // BrowserApiErrors would catch certain errors before they reach the `ErrorHandler` and\n    // thus provide a lower fidelity error than what `SentryErrorHandler`\n    // (see errorhandler.ts) would provide.\n    //\n    // see:\n    //  - https://github.com/getsentry/sentry-javascript/issues/5417#issuecomment-1453407097\n    //  - https://github.com/getsentry/sentry-javascript/issues/2744\n    return [\n        inboundFiltersIntegration(),\n        functionToStringIntegration(),\n        breadcrumbsIntegration(),\n        globalHandlersIntegration(),\n        linkedErrorsIntegration(),\n        dedupeIntegration(),\n        httpContextIntegration(),\n    ];\n}\n/**\n * Inits the Angular SDK\n */\nfunction init(options) {\n    const opts = {\n        defaultIntegrations: getDefaultIntegrations(),\n        ...options,\n    };\n    applySdkMetadata(opts, 'angular');\n    checkAndSetAngularVersion();\n    return init$1(opts);\n}\nfunction checkAndSetAngularVersion() {\n    const ANGULAR_MINIMUM_VERSION = 14;\n    const angularVersion = VERSION && VERSION.major ? parseInt(VERSION.major, 10) : undefined;\n    if (angularVersion) {\n        if (angularVersion < ANGULAR_MINIMUM_VERSION) {\n            IS_DEBUG_BUILD &&\n                logger.warn(`This Sentry SDK does not officially support Angular ${angularVersion}.`, `This SDK only supports Angular ${ANGULAR_MINIMUM_VERSION} and above.`, \"If you're using lower Angular versions, check the Angular Version Compatibility table in our docs: https://docs.sentry.io/platforms/javascript/guides/angular/#angular-version-compatibility.\", 'Otherwise, please consider upgrading your Angular version.');\n        }\n        setContext('angular', { version: angularVersion });\n    }\n}\n\n// In Angular 17 and future versions, zoneless support is forthcoming.\n// Therefore, it's advisable to safely check whether the `run` function is\n// available in the `<root>` context.\n// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access\nconst isNgZoneEnabled = typeof Zone !== 'undefined' && Zone.root && Zone.root.run;\n/**\n * The function that does the same job as `NgZone.runOutsideAngular`.\n *\n * ⚠️ Note: All of the Sentry functionality called from inside the Angular\n * execution context must be wrapped in this function. Angular's rendering\n * relies on asynchronous tasks being scheduled within its execution context.\n * Since Sentry schedules tasks that do not interact with Angular's rendering,\n * it may prevent Angular from functioning reliably. Consequently, it may disrupt\n * processes such as server-side rendering or client-side hydration.\n */\nfunction runOutsideAngular(callback) {\n    // Running the `callback` within the root execution context enables Angular\n    // processes (such as SSR and hydration) to continue functioning normally without\n    // timeouts and delays that could affect the user experience. This approach is\n    // necessary because some of the Sentry functionality continues to run in the background.\n    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access\n    return isNgZoneEnabled ? Zone.root.run(callback) : callback();\n}\n\n// https://github.com/angular/angular/blob/master/packages/core/src/util/errors.ts\nfunction tryToUnwrapZonejsError(error) {\n    // TODO: once Angular14 is the minimum requirement ERROR_ORIGINAL_ERROR and\n    //  getOriginalError from error.ts can be used directly.\n    return error && error.ngOriginalError\n        ? error.ngOriginalError\n        : error;\n}\nfunction extractHttpModuleError(error) {\n    // The `error` property of http exception can be either an `Error` object, which we can use directly...\n    if (isErrorOrErrorLikeObject(error.error)) {\n        return error.error;\n    }\n    // ... or an`ErrorEvent`, which can provide us with the message but no stack...\n    // guarding `ErrorEvent` against `undefined` as it's not defined in Node environments\n    if (typeof ErrorEvent !== 'undefined' && error.error instanceof ErrorEvent && error.error.message) {\n        return error.error.message;\n    }\n    // ...or the request body itself, which we can use as a message instead.\n    if (typeof error.error === 'string') {\n        return `Server returned code ${error.status} with body \"${error.error}\"`;\n    }\n    // If we don't have any detailed information, fallback to the request message itself.\n    return error.message;\n}\nfunction isErrorOrErrorLikeObject(value) {\n    if (value instanceof Error) {\n        return true;\n    }\n    if (value === null || typeof value !== 'object') {\n        return false;\n    }\n    const candidate = value;\n    return (isString(candidate.name) &&\n        isString(candidate.message) &&\n        (undefined === candidate.stack || isString(candidate.stack)));\n}\n/**\n * Implementation of Angular's ErrorHandler provider that can be used as a drop-in replacement for the stock one.\n */\nclass SentryErrorHandler {\n    constructor(options) {\n        this._options = {\n            logErrors: true,\n            ...options,\n        };\n    }\n    /**\n     * Method executed when the injector is destroyed.\n     */\n    ngOnDestroy() {\n        if (this._removeAfterSendEventListener) {\n            this._removeAfterSendEventListener();\n        }\n    }\n    /**\n     * Method called for every value captured through the ErrorHandler\n     */\n    handleError(error) {\n        const extractedError = this._extractError(error) || 'Handled unknown error';\n        // Capture handled exception and send it to Sentry.\n        const eventId = runOutsideAngular(() => Sentry.captureException(extractedError, {\n            mechanism: { type: 'angular', handled: false },\n        }));\n        // When in development mode, log the error to console for immediate feedback.\n        if (this._options.logErrors) {\n            // eslint-disable-next-line no-console\n            consoleSandbox(() => console.error(extractedError));\n        }\n        // Optionally show user dialog to provide details on what happened.\n        if (this._options.showDialog) {\n            const client = Sentry.getClient();\n            if (client && !this._removeAfterSendEventListener) {\n                this._removeAfterSendEventListener = client.on('afterSendEvent', (event) => {\n                    if (!event.type && event.event_id) {\n                        runOutsideAngular(() => {\n                            Sentry.showReportDialog({ ...this._options.dialogOptions, eventId: event.event_id });\n                        });\n                    }\n                });\n            }\n            else if (!client) {\n                runOutsideAngular(() => {\n                    Sentry.showReportDialog({ ...this._options.dialogOptions, eventId });\n                });\n            }\n        }\n    }\n    /**\n     * Used to pull a desired value that will be used to capture an event out of the raw value captured by ErrorHandler.\n     */\n    _extractError(error) {\n        // Allow custom overrides of extracting function\n        if (this._options.extractor) {\n            const defaultExtractor = this._defaultExtractor.bind(this);\n            return this._options.extractor(error, defaultExtractor);\n        }\n        return this._defaultExtractor(error);\n    }\n    /**\n     * Default implementation of error extraction that handles default error wrapping, HTTP responses, ErrorEvent and few other known cases.\n     */\n    _defaultExtractor(errorCandidate) {\n        const error = tryToUnwrapZonejsError(errorCandidate);\n        // If it's http module error, extract as much information from it as we can.\n        if (error instanceof HttpErrorResponse) {\n            return extractHttpModuleError(error);\n        }\n        // We can handle messages and Error objects directly.\n        if (typeof error === 'string' || isErrorOrErrorLikeObject(error)) {\n            return error;\n        }\n        // Nothing was extracted, fallback to default error message.\n        return null;\n    }\n}\nSentryErrorHandler.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: SentryErrorHandler, deps: [{ token: 'errorHandlerOptions' }], target: i0.ɵɵFactoryTarget.Injectable });\nSentryErrorHandler.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: SentryErrorHandler, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: SentryErrorHandler, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: ['errorHandlerOptions']\n                }] }]; } });\n/**\n * Factory function that creates an instance of a preconfigured ErrorHandler provider.\n */\nfunction createErrorHandler(config) {\n    return new SentryErrorHandler(config);\n}\n\nconst ANGULAR_ROUTING_OP = 'ui.angular.routing';\nconst ANGULAR_INIT_OP = 'ui.angular.init';\nconst ANGULAR_OP = 'ui.angular';\n\nlet instrumentationInitialized;\n/**\n * A custom browser tracing integration for Angular.\n *\n * Use this integration in combination with `TraceService`\n */\nfunction browserTracingIntegration(options = {}) {\n    // If the user opts out to set this up, we just don't initialize this.\n    // That way, the TraceService will not actually do anything, functionally disabling this.\n    if (options.instrumentNavigation !== false) {\n        instrumentationInitialized = true;\n    }\n    return browserTracingIntegration$1({\n        ...options,\n        instrumentNavigation: false,\n    });\n}\n/**\n * This function is extracted to make unit testing easier.\n */\nfunction _updateSpanAttributesForParametrizedUrl(route, span) {\n    const attributes = (span && spanToJSON(span).data) || {};\n    if (span && attributes[SEMANTIC_ATTRIBUTE_SENTRY_SOURCE] === 'url') {\n        span.updateName(route);\n        span.setAttribute(SEMANTIC_ATTRIBUTE_SENTRY_SOURCE, 'route');\n        span.setAttribute(SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN, `auto.${spanToJSON(span).op}.angular`);\n    }\n}\n/**\n * Angular's Service responsible for hooking into Angular Router and tracking current navigation process.\n * Creates a new transaction for every route change and measures a duration of routing process.\n */\nclass TraceService {\n    constructor(_router) {\n        this._router = _router;\n        this.navStart$ = this._router.events.pipe(filter((event) => event instanceof NavigationStart), tap(navigationEvent => {\n            if (!instrumentationInitialized) {\n                IS_DEBUG_BUILD &&\n                    logger.error('Angular integration has tracing enabled, but Tracing integration is not configured');\n                return;\n            }\n            if (this._routingSpan) {\n                this._routingSpan.end();\n                this._routingSpan = null;\n            }\n            const client = getClient();\n            const strippedUrl = stripUrlQueryAndFragment(navigationEvent.url);\n            if (client) {\n                // see comment in `_isPageloadOngoing` for rationale\n                if (!this._isPageloadOngoing()) {\n                    runOutsideAngular(() => {\n                        startBrowserTracingNavigationSpan(client, {\n                            name: strippedUrl,\n                            attributes: {\n                                [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.navigation.angular',\n                                [SEMANTIC_ATTRIBUTE_SENTRY_SOURCE]: 'url',\n                            },\n                        });\n                    });\n                }\n                else {\n                    // The first time we end up here, we set the pageload flag to false\n                    // Subsequent navigations are going to get their own navigation root span\n                    // even if the pageload root span is still ongoing.\n                    this._pageloadOngoing = false;\n                }\n                this._routingSpan =\n                    runOutsideAngular(() => startInactiveSpan({\n                        name: `${navigationEvent.url}`,\n                        op: ANGULAR_ROUTING_OP,\n                        attributes: {\n                            [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ui.angular',\n                            [SEMANTIC_ATTRIBUTE_SENTRY_SOURCE]: 'url',\n                            url: strippedUrl,\n                            ...(navigationEvent.navigationTrigger && {\n                                navigationTrigger: navigationEvent.navigationTrigger,\n                            }),\n                        },\n                    })) || null;\n                return;\n            }\n        }));\n        // The ResolveEnd event is fired when the Angular router has resolved the URL and\n        // the parameter<->value mapping. It holds the new resolved router state with\n        // the mapping and the new URL.\n        // Only After this event, the route is activated, meaning that the transaction\n        // can be updated with the parameterized route name before e.g. the route's root\n        // component is initialized. This should be early enough before outgoing requests\n        // are made from the new route, with the exceptions of requests being made during\n        // a navigation.\n        this.resEnd$ = this._router.events.pipe(filter((event) => event instanceof ResolveEnd), tap(event => {\n            const route = getParameterizedRouteFromSnapshot(event.state.root);\n            if (route) {\n                getCurrentScope().setTransactionName(route);\n            }\n            const activeSpan = getActiveSpan();\n            const rootSpan = activeSpan && getRootSpan(activeSpan);\n            _updateSpanAttributesForParametrizedUrl(route, rootSpan);\n        }));\n        this.navEnd$ = this._router.events.pipe(filter(event => event instanceof NavigationEnd || event instanceof NavigationCancel || event instanceof NavigationError), tap(() => {\n            if (this._routingSpan) {\n                runOutsideAngular(() => {\n                    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n                    this._routingSpan.end();\n                });\n                this._routingSpan = null;\n            }\n        }));\n        this._routingSpan = null;\n        this._pageloadOngoing = true;\n        this._subscription = new Subscription();\n        this._subscription.add(this.navStart$.subscribe());\n        this._subscription.add(this.resEnd$.subscribe());\n        this._subscription.add(this.navEnd$.subscribe());\n    }\n    /**\n     * This is used to prevent memory leaks when the root view is created and destroyed multiple times,\n     * since `subscribe` callbacks capture `this` and prevent many resources from being GC'd.\n     */\n    ngOnDestroy() {\n        this._subscription.unsubscribe();\n    }\n    /**\n     * We only _avoid_ creating a navigation root span in one case:\n     *\n     * There is an ongoing pageload span AND the router didn't yet emit the first navigation start event\n     *\n     * The first navigation start event will create the child routing span\n     * and update the pageload root span name on ResolveEnd.\n     *\n     * There's an edge case we need to avoid here: If the router fires the first navigation start event\n     * _after_ the pageload root span finished. This is why we check for the pageload root span.\n     * Possible real-world scenario: Angular application and/or router is bootstrapped after the pageload\n     * idle root span finished\n     *\n     * The overall rationale is:\n     * - if we already avoided creating a navigation root span once, we don't avoid it again\n     *   (i.e. set `_pageloadOngoing` to `false`)\n     * - if `_pageloadOngoing` is already `false`, create a navigation root span\n     * - if there's no active/pageload root span, create a navigation root span\n     * - only if there's an ongoing pageload root span AND `_pageloadOngoing` is still `true,\n     *   don't create a navigation root span\n     */\n    _isPageloadOngoing() {\n        if (!this._pageloadOngoing) {\n            // pageload is already finished, no need to update\n            return false;\n        }\n        const activeSpan = getActiveSpan();\n        if (!activeSpan) {\n            this._pageloadOngoing = false;\n            return false;\n        }\n        const rootSpan = getRootSpan(activeSpan);\n        this._pageloadOngoing = spanToJSON(rootSpan).op === 'pageload';\n        return this._pageloadOngoing;\n    }\n}\nTraceService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceService, deps: [{ token: i1.Router }], target: i0.ɵɵFactoryTarget.Injectable });\nTraceService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceService, providedIn: 'root' });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceService, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return [{ type: i1.Router }]; } });\nconst UNKNOWN_COMPONENT = 'unknown';\n/**\n * A directive that can be used to capture initialization lifecycle of the whole component.\n */\nclass TraceDirective {\n    /**\n     * Implementation of OnInit lifecycle method\n     * @inheritdoc\n     */\n    ngOnInit() {\n        if (!this.componentName) {\n            this.componentName = UNKNOWN_COMPONENT;\n        }\n        if (getActiveSpan()) {\n            this._tracingSpan = runOutsideAngular(() => startInactiveSpan({\n                name: `<${this.componentName}>`,\n                op: ANGULAR_INIT_OP,\n                attributes: { [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ui.angular.trace_directive' },\n            }));\n        }\n    }\n    /**\n     * Implementation of AfterViewInit lifecycle method\n     * @inheritdoc\n     */\n    ngAfterViewInit() {\n        if (this._tracingSpan) {\n            runOutsideAngular(() => this._tracingSpan.end());\n        }\n    }\n}\nTraceDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceDirective, deps: [], target: i0.ɵɵFactoryTarget.Directive });\nTraceDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"14.3.0\", type: TraceDirective, selector: \"[trace]\", inputs: { componentName: [\"trace\", \"componentName\"] }, ngImport: i0 });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceDirective, decorators: [{\n            type: Directive,\n            args: [{ selector: '[trace]' }]\n        }], propDecorators: { componentName: [{\n                type: Input,\n                args: ['trace']\n            }] } });\n/**\n * A module serves as a single compilation unit for the `TraceDirective` and can be re-used by any other module.\n */\nclass TraceModule {\n}\nTraceModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\nTraceModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceModule, declarations: [TraceDirective], exports: [TraceDirective] });\nTraceModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceModule });\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"14.3.0\", ngImport: i0, type: TraceModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    declarations: [TraceDirective],\n                    exports: [TraceDirective],\n                }]\n        }] });\n/**\n * Decorator function that can be used to capture initialization lifecycle of the whole component.\n */\nfunction TraceClass(options) {\n    let tracingSpan;\n    /* eslint-disable @typescript-eslint/no-unsafe-member-access */\n    return target => {\n        const originalOnInit = target.prototype.ngOnInit;\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        target.prototype.ngOnInit = function (...args) {\n            tracingSpan = runOutsideAngular(() => startInactiveSpan({\n                onlyIfParent: true,\n                name: `<${options && options.name ? options.name : 'unnamed'}>`,\n                op: ANGULAR_INIT_OP,\n                attributes: {\n                    [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ui.angular.trace_class_decorator',\n                },\n            }));\n            if (originalOnInit) {\n                return originalOnInit.apply(this, args);\n            }\n        };\n        const originalAfterViewInit = target.prototype.ngAfterViewInit;\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        target.prototype.ngAfterViewInit = function (...args) {\n            if (tracingSpan) {\n                runOutsideAngular(() => tracingSpan.end());\n            }\n            if (originalAfterViewInit) {\n                return originalAfterViewInit.apply(this, args);\n            }\n        };\n    };\n    /* eslint-enable @typescript-eslint/no-unsafe-member-access */\n}\n/**\n * Decorator function that can be used to capture a single lifecycle methods of the component.\n */\nfunction TraceMethod(options) {\n    // eslint-disable-next-line @typescript-eslint/ban-types\n    return (target, propertyKey, descriptor) => {\n        const originalMethod = descriptor.value;\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        descriptor.value = function (...args) {\n            const now = timestampInSeconds();\n            runOutsideAngular(() => {\n                startInactiveSpan({\n                    onlyIfParent: true,\n                    name: `<${options && options.name ? options.name : 'unnamed'}>`,\n                    op: `${ANGULAR_OP}.${String(propertyKey)}`,\n                    startTime: now,\n                    attributes: {\n                        [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ui.angular.trace_method_decorator',\n                    },\n                }).end(now);\n            });\n            if (originalMethod) {\n                // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access\n                return originalMethod.apply(this, args);\n            }\n        };\n        return descriptor;\n    };\n}\n/**\n * Takes the parameterized route from a given ActivatedRouteSnapshot and concatenates the snapshot's\n * child route with its parent to produce the complete parameterized URL of the activated route.\n * This happens recursively until the last child (i.e. the end of the URL) is reached.\n *\n * @param route the ActivatedRouteSnapshot of which its path and its child's path is concatenated\n *\n * @returns the concatenated parameterized route string\n */\nfunction getParameterizedRouteFromSnapshot(route) {\n    const parts = [];\n    let currentRoute = route && route.firstChild;\n    while (currentRoute) {\n        const path = currentRoute && currentRoute.routeConfig && currentRoute.routeConfig.path;\n        if (path === null || path === undefined) {\n            break;\n        }\n        parts.push(path);\n        currentRoute = currentRoute.firstChild;\n    }\n    const fullPath = parts.filter(part => part).join('/');\n    return fullPath ? `/${fullPath}/` : '/';\n}\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { SentryErrorHandler, TraceClass, TraceDirective, TraceMethod, TraceModule, TraceService, browserTracingIntegration, createErrorHandler, getDefaultIntegrations, init };\n","import { NgModule } from '@angular/core';\nimport { RouterModule, Routes, UrlSegment } from '@angular/router';\n\nimport { includes } from 'lodash';\n\nimport { defaultAngularJsRoutes } from '../ajs-app/app-routing.module.ajs';\nimport { App404Component } from './core/error-pages/app404/app404.component';\n\n// https://angular.io/guide/upgrade#configure-a-custom-route-matcher-for-angularjs-routes\nexport function isAngularJSUrl(url: UrlSegment[]) {\n    const isRegisteredInNav = includes(defaultAngularJsRoutes, url[0].path);\n    return url.length > 0 && isRegisteredInNav ? ({ consumed: url }) : null;\n}\n\nconst routes: Routes = [\n    {\n        path: '',\n        redirectTo: 'authentication/login',\n        pathMatch: 'full'\n    },\n    /**\n     * Lazy load AngularJS module here\n     */\n    {\n        matcher: isAngularJSUrl,\n        loadChildren: () => import('./ng1-wrapper.module').then(mod => mod.Ng1WrapperModule)\n    },\n    {\n        path: 'error',\n        loadChildren: () => import('./core/error-pages/error-pages.module').then(module => module.ErrorPagesModule)\n    },\n    {\n        path: '**',\n        component: App404Component\n    },\n];\n\n@NgModule({\n    imports: [RouterModule.forRoot(routes, {\n        useHash: false,\n        initialNavigation: 'enabledNonBlocking', // 'enabledNonBlocking' is the same as 'true' in Angular 10\n        onSameUrlNavigation: 'reload'\n    })],\n    exports: [RouterModule]\n})\nexport class AppRoutingModule { }\n","import { Component } from '@angular/core';\n\n@Component({\n    selector: 'hybrid-app404',\n    templateUrl: './app404.component.html',\n    styleUrls: ['./app404.component.scss']\n})\nexport class App404Component { }\n","<div>\n    <div class=\"svgicon svgicon--telescope-404 not-found__icon\"></div>\n    <div class=\"not-found__cant-find-text\" bd-i18n=\"Global.Text.CantFindPage\">Hmm...we can't find that page!</div>\n    <div class=\"not-found__sorry-text\" bd-i18n=\"Global.Text.SorryAboutThat\">Sorry about that. Want to look for something else?</div>\n</div>\n","import { Component, OnInit, OnDestroy } from '@angular/core';\r\nimport { Subscription } from 'rxjs';\r\nimport { ToastMessage } from '../models/toast-message';\r\nimport { ToastMessageStateService } from '../services/toast-message.state.service';\r\nimport { UntilDestroy, untilDestroyed } from '@ngneat/until-destroy';\r\nimport { ToastMessageAlertLevel } from '../enums/toast-message-alert-level.enum';\r\n\r\n@UntilDestroy()\r\n@Component({\r\n    selector: 'bd-toast-message',\r\n    templateUrl: './toast-message.component.html',\r\n    styleUrls: ['./toast-message.component.scss']\r\n})\r\nexport class ToastMessageComponent implements OnInit, OnDestroy {\r\n    showMessage: boolean;\r\n    message: ToastMessage;\r\n    messageIcon: string;\r\n    messageContainerClass: string;\r\n    private messageTimer;\r\n    private subscription: Subscription;\r\n\r\n    constructor(\r\n        private toastMessageStateService: ToastMessageStateService\r\n    ) {\r\n    }\r\n\r\n    ngOnInit() {\r\n        this.subscription = this.toastMessageStateService.$state\r\n            .pipe(untilDestroyed(this))\r\n            .subscribe((newMessage: ToastMessage) => {\r\n                this.messageContainerClass = '';\r\n                if (newMessage) {\r\n                    switch (newMessage.level) {\r\n                        case ToastMessageAlertLevel.ERROR:\r\n                            this.messageIcon = 'fa-exclamation';\r\n                            this.messageContainerClass = 'toast-message__container--exception';\r\n                            break;\r\n                        case ToastMessageAlertLevel.SUCCESS:\r\n                            this.messageIcon = 'fa-check';\r\n                            break;\r\n                        default:\r\n                            this.messageIcon = 'fa-check';\r\n                            break;\r\n                    }\r\n\r\n                    if (this.messageTimer) {\r\n                        clearTimeout(this.messageTimer);\r\n                    }\r\n\r\n                    this.messageTimer = null;\r\n                    this.message = newMessage;\r\n                    this.showMessage = true;\r\n                    if (!newMessage.persist) {\r\n                        const fadeOutByLevel = newMessage.level === ToastMessageAlertLevel.SUCCESS ? 3000 : 5000;\r\n\r\n                        this.messageTimer = setTimeout(() => {\r\n                            this.toastMessageStateService.resetToInitialState();\r\n                        }, fadeOutByLevel);\r\n                    }\r\n                } else {\r\n                    this.showMessage = false;\r\n                }\r\n            });\r\n    }\r\n\r\n    ngOnDestroy() {\r\n        if (this.subscription) {\r\n            this.subscription.unsubscribe();\r\n        }\r\n    }\r\n}\r\n","<div role=\"alert\" class=\"toast-message\" [class.toast-message--is-active]=\"showMessage\">\r\n    <div class=\"toast-message__container\" [ngClass]=\"messageContainerClass\">\r\n        <span class=\"toast-message__icon fas\" [ngClass]=\"messageIcon\"></span>\r\n        <span class=\"toast-message__content\">{{message?.message}}</span>\r\n    </div>\r\n</div>\r\n","<bd-toast-message></bd-toast-message>\n\n<router-outlet></router-outlet>\n<div ui-view></div>\n\n<div *ngIf=\"pageLoadingService.isLoading$ | async\" id=\"loadingSpinner\">\n    <div class=\"global-loading-spinner__body\">\n        <span class=\"global-loading-spinner__spinner\"></span>\n        <div class=\"global-loading-spinner__text\">Loading&hellip;</div>\n    </div>\n</div>\n","import { Component, OnDestroy, OnInit } from '@angular/core';\nimport {\n    ActivatedRoute,\n    NavigationCancel,\n    NavigationEnd,\n    NavigationError,\n    NavigationStart,\n    Router,\n    Event\n} from '@angular/router';\nimport {\n    distinctUntilChanged, filter, map, Subscription\n} from 'rxjs';\n// In general, we should NOT be importing services from other apps, but these will eventually come from a shared package\nimport { PageTitleService } from '../../../../src/app/services/page-title.service';\nimport { PageLoadingService } from '../../../../src/app/services/page-loading.service';\nimport { ToastMessageStateService } from '../../../../src/app/core/toast-message/services/toast-message.state.service';\nimport { UntilDestroy, untilDestroyed } from '@ngneat/until-destroy';\n\n@UntilDestroy()\n@Component({\n    selector: 'app-root',\n    templateUrl: './app.component.html',\n    styleUrls: ['./app.component.scss']\n})\nexport class AppComponent implements OnInit, OnDestroy {\n    title = 'public';\n    private routerSubscription: Subscription;\n    private documentTitleSubscription: Subscription;\n\n    constructor(\n        private router: Router,\n        private pageTitleService: PageTitleService,\n        public pageLoadingService: PageLoadingService,\n        private toastMessageStateService: ToastMessageStateService\n    ) {\n        this.routerSubscription = this.router.events\n            .pipe(untilDestroyed(this))\n            .subscribe((event: Event) => {\n                this.navigationInterceptor(event);\n            });\n    }\n\n    ngOnInit(): void {\n        this.setDocumentTitle();\n    }\n\n    // Shows and hides the loading spinner during RouterEvent changes\n    navigationInterceptor(event: Event): void {\n        if (event instanceof NavigationStart) {\n            this.pageLoadingService.start();\n        }\n        if (event instanceof NavigationEnd) {\n            setTimeout(() => this.pageLoadingService.stop(), 0);\n            this.toastMessageStateService.displayMessageOnNavigate();\n        }\n\n        // Set loading state to false in both of the below events to hide the spinner in case a request fails\n        if (event instanceof NavigationCancel) {\n            setTimeout(() => this.pageLoadingService.stop(), 0);\n            this.toastMessageStateService.displayMessageOnNavigate();\n        }\n        if (event instanceof NavigationError) {\n            setTimeout(() => this.pageLoadingService.stop(), 0);\n            this.toastMessageStateService.displayMessageOnNavigate();\n        }\n    }\n\n    // Manage document title\n    // https://dev.to/brandontroberts/setting-page-titles-natively-with-the-angular-router-393j\n    setDocumentTitle(): void {\n        this.documentTitleSubscription = this.router.events\n            .pipe(\n                filter((event) => event instanceof NavigationEnd),\n                distinctUntilChanged(),\n                map(() => {\n                    let count = 0;\n                    let route: ActivatedRoute = this.router.routerState.root;\n                    let routeData = {};\n                    while (route?.firstChild) {\n                        if (count > 300) break;\n                        route = route.firstChild;\n                        count += 1;\n                    }\n                    if (route.snapshot.data) {\n                        routeData = route?.snapshot.data;\n                    }\n                    return routeData;\n                }),\n                untilDestroyed(this)\n            )\n            .subscribe((routeData: any) => {\n                if (!routeData.isAngularJsRoute) {\n                    // A null title is OK here, the service will provide a default title for null\n                    this.pageTitleService.setTitle(routeData.title);\n                }\n            });\n    }\n\n    ngOnDestroy(): void {\n        if (this.routerSubscription) {\n            this.routerSubscription.unsubscribe();\n        }\n        if (this.documentTitleSubscription) {\n            this.documentTitleSubscription.unsubscribe();\n        }\n    }\n}\n","import { NgModule } from '@angular/core';\r\nimport { CommonModule } from '@angular/common';\r\nimport { AccountSettingsService } from '../services/account-settings.service';\r\n\r\n// In general, we should NOT be importing services from other apps, but these will eventually come from a shared package\r\nimport { PageLoadingService } from '../../../../../src/app/services/page-loading.service';\r\nimport { BrowserWindowService } from '../../../../../src/app/services/browser-window.service';\r\n\r\n@NgModule({\r\n    declarations: [\r\n\r\n    ],\r\n    imports: [\r\n        CommonModule\r\n    ],\r\n    exports: [\r\n\r\n    ],\r\n    providers: [\r\n        PageLoadingService,\r\n        BrowserWindowService,\r\n        AccountSettingsService\r\n    ]\r\n})\r\n\r\nexport class CoreModule { }\r\n","// This file can be replaced during build by using the `fileReplacements` array.\n// `ng build` replaces `environment.ts` with `environment.prod.ts`.\n// The list of file replacements can be found in `angular.json`.\nimport { EnvironmentFullConfig } from './environment-config';\nimport { BuildiumIdentityLogLevel } from './buildium-identity-log.enum';\n\nexport const environment: EnvironmentFullConfig = {\n    production: false,\n    name: 'default',\n    authServer: {\n        configId: 'https://auth.buildiumstaging.com:BuildiumManagerApplication',\n        authority: 'https://auth.buildiumstaging.com',\n        client: {\n            id: 'BuildiumManagerApplication',\n            authority: ''\n        },\n        scopes: [\n            'BuildiumManagerApi',\n            'openid',\n            'offline_access'\n        ],\n        logLevel: BuildiumIdentityLogLevel.None\n    },\n    sentry: {\n        enabled: 'false',\n        dsn: '',\n        environment: '',\n        release: ''\n    },\n};\n\n/*\n * For easier debugging in development mode, you can import the following file\n * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.\n *\n * This import should be commented out in production mode because it will have a negative impact\n * on performance if an error is thrown.\n */\n// import 'zone.js/plugins/zone-error';  // Included with Angular CLI.\n","import { Subscription } from '../Subscription';\nexport class Action extends Subscription {\n    constructor(scheduler, work) {\n        super();\n    }\n    schedule(state, delay = 0) {\n        return this;\n    }\n}\n","export const intervalProvider = {\n    setInterval(...args) {\n        const { delegate } = intervalProvider;\n        return ((delegate === null || delegate === void 0 ? void 0 : delegate.setInterval) || setInterval)(...args);\n    },\n    clearInterval(handle) {\n        const { delegate } = intervalProvider;\n        return ((delegate === null || delegate === void 0 ? void 0 : delegate.clearInterval) || clearInterval)(handle);\n    },\n    delegate: undefined,\n};\n","import { dateTimestampProvider } from './scheduler/dateTimestampProvider';\nexport class Scheduler {\n    constructor(schedulerActionCtor, now = Scheduler.now) {\n        this.schedulerActionCtor = schedulerActionCtor;\n        this.now = now;\n    }\n    schedule(work, delay = 0, state) {\n        return new this.schedulerActionCtor(this, work).schedule(state, delay);\n    }\n}\nScheduler.now = dateTimestampProvider.now;\n","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport const asyncScheduler = new AsyncScheduler(AsyncAction);\nexport const async = asyncScheduler;\n","import { Scheduler } from '../Scheduler';\nexport class AsyncScheduler extends Scheduler {\n    constructor(SchedulerAction, now = Scheduler.now) {\n        super(SchedulerAction, now);\n        this.actions = [];\n        this._active = false;\n        this._scheduled = undefined;\n    }\n    flush(action) {\n        const { actions } = this;\n        if (this._active) {\n            actions.push(action);\n            return;\n        }\n        let error;\n        this._active = true;\n        do {\n            if ((error = action.execute(action.state, action.delay))) {\n                break;\n            }\n        } while ((action = actions.shift()));\n        this._active = false;\n        if (error) {\n            while ((action = actions.shift())) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    }\n}\n","import { Action } from './Action';\nimport { intervalProvider } from './intervalProvider';\nimport { arrRemove } from '../util/arrRemove';\nexport class AsyncAction extends Action {\n    constructor(scheduler, work) {\n        super(scheduler, work);\n        this.scheduler = scheduler;\n        this.work = work;\n        this.pending = false;\n    }\n    schedule(state, delay = 0) {\n        if (this.closed) {\n            return this;\n        }\n        this.state = state;\n        const id = this.id;\n        const scheduler = this.scheduler;\n        if (id != null) {\n            this.id = this.recycleAsyncId(scheduler, id, delay);\n        }\n        this.pending = true;\n        this.delay = delay;\n        this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n        return this;\n    }\n    requestAsyncId(scheduler, _id, delay = 0) {\n        return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);\n    }\n    recycleAsyncId(_scheduler, id, delay = 0) {\n        if (delay != null && this.delay === delay && this.pending === false) {\n            return id;\n        }\n        intervalProvider.clearInterval(id);\n        return undefined;\n    }\n    execute(state, delay) {\n        if (this.closed) {\n            return new Error('executing a cancelled action');\n        }\n        this.pending = false;\n        const error = this._execute(state, delay);\n        if (error) {\n            return error;\n        }\n        else if (this.pending === false && this.id != null) {\n            this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n        }\n    }\n    _execute(state, _delay) {\n        let errored = false;\n        let errorValue;\n        try {\n            this.work(state);\n        }\n        catch (e) {\n            errored = true;\n            errorValue = e ? e : new Error('Scheduled action threw falsy error');\n        }\n        if (errored) {\n            this.unsubscribe();\n            return errorValue;\n        }\n    }\n    unsubscribe() {\n        if (!this.closed) {\n            const { id, scheduler } = this;\n            const { actions } = scheduler;\n            this.work = this.state = this.scheduler = null;\n            this.pending = false;\n            arrRemove(actions, this);\n            if (id != null) {\n                this.id = this.recycleAsyncId(scheduler, id, null);\n            }\n            this.delay = null;\n            super.unsubscribe();\n        }\n    }\n}\n","import { HttpErrorResponse } from '@angular/common/http';\r\nimport { Injectable } from '@angular/core';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class ErrorExtractorService {\r\n    extractError(error: any): Error | string {\r\n        if (error instanceof Error || typeof error === 'string') {\r\n            return error;\r\n        }\r\n\r\n        if (error instanceof HttpErrorResponse) {\r\n            if (error.error instanceof HttpErrorResponse) {\r\n                return this.extractError(error.error);\r\n            }\r\n\r\n            if (error.error instanceof Error) {\r\n                return error.error;\r\n            }\r\n\r\n            if (error.error instanceof ErrorEvent) {\r\n                return error.error.message;\r\n            }\r\n\r\n            if (typeof error.error === 'string') {\r\n                return error.error;\r\n            }\r\n\r\n            return error.message;\r\n        }\r\n\r\n        if (error.error) {\r\n            return this.extractError(error.error);\r\n        }\r\n\r\n        if (error.originalError) {\r\n            return this.extractError(error.originalError);\r\n        }\r\n\r\n        if (error.message) {\r\n            return this.extractError(error.message);\r\n        }\r\n\r\n        return new Error('Uknown Error Type.');\r\n    }\r\n}\r\n","import { ErrorHandler, Injectable, OnDestroy } from '@angular/core';\nimport * as Sentry from '@sentry/angular';\nimport { CaptureContext } from '@sentry/types';\nimport { environment } from '@root/src/environments/environment';\nimport {\n    Observable, Subject, catchError, debounceTime,\n    filter, map, of, switchMap, tap, withLatestFrom\n} from 'rxjs';\nimport { Exception } from '@root/src/shared/domain/dtos/exception.dto';\n\n// caution with non-public imports\nimport { ErrorExtractorService } from '@root/src/app/services/error-extractor.service';\nimport { LoggingApiService } from '@root/src/app/services/logging-api.service';\nimport { FeatureFlagService } from '@root/src/app/services/feature-flag.service';\n\n@Injectable({\n    providedIn: 'root'\n})\nexport class PublicGlobalErrorHandler implements ErrorHandler, OnDestroy {\n    private readonly sentryErrorSubject: Subject<Error> = new Subject<Error>();\n\n    constructor(\n        private flagService: FeatureFlagService,\n        private loggingApiService: LoggingApiService,\n        private errorExtractorService: ErrorExtractorService\n    ) {\n        this.initializeSentrySubscription();\n    }\n\n    handleError(error: Error): void {\n        if (!error) {\n            return;\n        }\n\n        console.error(error);\n        this.logError(error);\n\n        if (Array.isArray(error)) {\n            error.forEach(x => this.sentryErrorSubject.next(x));\n        } else {\n            this.sentryErrorSubject.next(error);\n        }\n    }\n\n    ngOnDestroy(): void {\n        this.sentryErrorSubject.complete();\n    }\n\n    private initializeSentrySubscription(): void {\n        this.sentryErrorSubject.pipe(\n            filter(() => environment.sentry.enabled === 'true'),\n            debounceTime(100),\n            map(error => this.errorExtractorService.extractError(error)),\n            withLatestFrom(this.flagService.retrievePublicFlag(this.flagService.keys.UseSentryForManagerClient)),\n            filter(([, isFlagEnabled]) => isFlagEnabled),\n            switchMap(([error]) => this.getErrorContext(error)),\n            tap(errorContext => Sentry.captureException(errorContext.error, errorContext.context))\n        ).subscribe();\n    }\n\n    private getErrorContext(error: Error | string): Observable<{ error: Error | string, context: CaptureContext }> {\n        // userInfo intentionally 'undefined', since we're unauthenticated\n        return of(undefined).pipe(\n            catchError(() => of(undefined)),\n            map(userInfo => this.updateContext(error, userInfo)),\n            map(context => {\n                return {\n                    error,\n                    context\n                };\n            })\n        );\n    }\n\n    private updateContext(error: Error | string, userInfo?: { Id: number, Email: string }): CaptureContext {\n        if (userInfo) {\n            Sentry.setUser({\n                email: userInfo.Email,\n                id: userInfo.Id.toString(),\n                username: userInfo.Email\n            });\n        }\n\n        if (error instanceof Error) {\n            Sentry.getCurrentScope().setTransactionName(error.message);\n        } else {\n            Sentry.getCurrentScope().setTransactionName(error);\n        }\n\n        const context = {\n            tags: {\n                userAgent: window.navigator.userAgent\n            }\n        };\n\n        return context;\n    }\n\n    private logError(error: Error): void {\n        if (!error.stack) {\n            return;\n        }\n\n        if (!error.message || !error.message.length) {\n            const exception: Exception = {\n                message: 'No message associated with exception',\n                stack: error.stack\n            };\n            this.loggingApiService.logWarning(exception);\n        } else {\n            const exception: Exception = {\n                message: error.message,\n                stack: error.stack\n            };\n            this.loggingApiService.logError(exception);\n        }\n    }\n}\n","import { asyncScheduler } from '../scheduler/async';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function debounceTime(dueTime, scheduler = asyncScheduler) {\n    return operate((source, subscriber) => {\n        let activeTask = null;\n        let lastValue = null;\n        let lastTime = null;\n        const emit = () => {\n            if (activeTask) {\n                activeTask.unsubscribe();\n                activeTask = null;\n                const value = lastValue;\n                lastValue = null;\n                subscriber.next(value);\n            }\n        };\n        function emitWhenIdle() {\n            const targetTime = lastTime + dueTime;\n            const now = scheduler.now();\n            if (now < targetTime) {\n                activeTask = this.schedule(undefined, targetTime - now);\n                subscriber.add(activeTask);\n                return;\n            }\n            emit();\n        }\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            lastValue = value;\n            lastTime = scheduler.now();\n            if (!activeTask) {\n                activeTask = scheduler.schedule(emitWhenIdle, dueTime);\n                subscriber.add(activeTask);\n            }\n        }, () => {\n            emit();\n            subscriber.complete();\n        }, undefined, () => {\n            lastValue = activeTask = null;\n        }));\n    });\n}\n","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { innerFrom } from '../observable/innerFrom';\nimport { identity } from '../util/identity';\nimport { noop } from '../util/noop';\nimport { popResultSelector } from '../util/args';\nexport function withLatestFrom(...inputs) {\n    const project = popResultSelector(inputs);\n    return operate((source, subscriber) => {\n        const len = inputs.length;\n        const otherValues = new Array(len);\n        let hasValue = inputs.map(() => false);\n        let ready = false;\n        for (let i = 0; i < len; i++) {\n            innerFrom(inputs[i]).subscribe(new OperatorSubscriber(subscriber, (value) => {\n                otherValues[i] = value;\n                if (!ready && !hasValue[i]) {\n                    hasValue[i] = true;\n                    (ready = hasValue.every(identity)) && (hasValue = null);\n                }\n            }, noop));\n        }\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            if (ready) {\n                const values = [value, ...otherValues];\n                subscriber.next(project ? project(...values) : values);\n            }\n        }));\n    });\n}\n","import { NgModule } from '@angular/core';\r\nimport { CommonModule } from '@angular/common';\r\nimport { ToastMessageComponent } from './components/toast-message.component';\r\n\r\n@NgModule({\r\n    imports: [\r\n        CommonModule\r\n    ],\r\n    exports: [\r\n        ToastMessageComponent\r\n    ],\r\n    providers: [],\r\n    declarations: [\r\n        ToastMessageComponent\r\n    ]\r\n})\r\nexport class ToastMessageModule { }\r\n","import { DefaultUrlSerializer, UrlTree } from '@angular/router';\r\n\r\nexport class LowerCaseUrlSerializer extends DefaultUrlSerializer {\r\n    override parse(url: string): UrlTree {\r\n        // Optional Step: Do some stuff with the url if needed.\r\n\r\n        const fullUrl = url.split('?');\r\n        let baseUrl = fullUrl[0];\r\n        const segments = baseUrl.split('/');\r\n        if (segments.length > 1) {\r\n            segments[1] = segments[1].toLowerCase();\r\n        }\r\n        baseUrl = segments.join('/');\r\n        let queryString = fullUrl[1] || '';\r\n        if (queryString && queryString.length) {\r\n            queryString = `?${queryString}`;\r\n        }\r\n        return super.parse(`${baseUrl}${queryString}`);\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport { environment } from '@root/src/environments/environment';\r\nimport * as Sentry from '@sentry/angular';\r\nimport { FeatureFlagService } from './feature-flag.service';\r\nimport {\r\n    catchError, firstValueFrom, map, of\r\n} from 'rxjs';\r\nimport { HttpErrorResponse } from '@angular/common/http';\r\nimport { BASE_PATH_API } from '@manager-base/app-base/environment/paths/constants';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\n// adapted from https://stackoverflow.com/questions/34489916/how-to-load-external-scripts-dynamically-in-angular\r\nexport class SentryLoaderService {\r\n    constructor(private flagService: FeatureFlagService) {}\r\n\r\n    loadSentry(): void {\r\n        if (environment.sentry.enabled === 'true') {\r\n            Sentry.init({\r\n                dsn: environment.sentry.dsn,\r\n                environment: environment.sentry.environment,\r\n                release: environment.sentry.release,\r\n                beforeSend: (event, hint) => {\r\n                    this.handleInfinteDigestErrorEvent(event);\r\n\r\n                    return this.isFlagEnabled(this.handleNonErrorEvent(event, hint), this.flagService);\r\n                },\r\n                beforeBreadcrumb: (breadcrumb) => {\r\n                    if (this.isApiBreadcrumb(breadcrumb)) {\r\n                        return null;\r\n                    }\r\n\r\n                    if (this.isNewRelicBreadcrumb(breadcrumb)) {\r\n                        return null;\r\n                    }\r\n\r\n                    return breadcrumb;\r\n                },\r\n            });\r\n        }\r\n    }\r\n\r\n    private isFlagEnabled(event: Sentry.ErrorEvent, flagService: FeatureFlagService): PromiseLike<Sentry.ErrorEvent | null> {\r\n        const getEvent$ = flagService.retrievePublicFlag(this.flagService.keys.UseSentryForManagerClient).pipe(\r\n            map(isSentryEnabled => {\r\n                return isSentryEnabled ? event : null;\r\n            }),\r\n            catchError(() => of(null))\r\n        );\r\n\r\n        return firstValueFrom(getEvent$);\r\n    }\r\n\r\n    private isApiBreadcrumb(breadcrumb: Sentry.Breadcrumb) {\r\n        return breadcrumb.type === 'http'\r\n            && breadcrumb.data\r\n            && (breadcrumb.data.status_code === 200 || breadcrumb.data.status_code === 204)\r\n            && breadcrumb.data.url\r\n            && (breadcrumb.data.url.toString().includes(`${BASE_PATH_API}`));\r\n    }\r\n\r\n    private isNewRelicBreadcrumb(breadcrumb: Sentry.Breadcrumb) {\r\n        return breadcrumb.type === 'http'\r\n            && breadcrumb.data\r\n            && breadcrumb.data.url\r\n            && (breadcrumb.data.url.toString().includes('bam.nr-data.net'));\r\n    }\r\n\r\n    private handleNonErrorEvent(event: Sentry.ErrorEvent, hint: Sentry.EventHint): Sentry.ErrorEvent {\r\n        if (hint.originalException instanceof HttpErrorResponse\r\n            && event.exception && event.exception.values && event.exception.values.length\r\n            && event.exception.values[0].value && event.exception.values[0].value.startsWith('Non-Error exception captured')\r\n        ) {\r\n            // Http error reponse was captured outside of an area using the global error handler.\r\n            event.exception.values[0].value = hint.originalException.message;\r\n        }\r\n\r\n        return event;\r\n    }\r\n\r\n    // When running in hybrid mode, Angular's ngUpgrade manages change detection between both frameworks - Angular zone and AngularJS $digest.\r\n    // [$rootScope:infdig] Infinite $digest Loop errors can occur when a digest was triggered while one was already in progress.\r\n    // This could mean that something is triggering a digest outside of either framework's change detection.\r\n    private handleInfinteDigestErrorEvent(event: Sentry.ErrorEvent): Sentry.ErrorEvent {\r\n        const isInfDigErrorWithUrl = !!(event.exception && event.exception.values && event.exception.values.length && event.exception.values[0].value\r\n            && event.exception.values[0].value.includes('[$rootScope:infdig]'))\r\n            && !!(event && event.request && event.request.url);\r\n\r\n        if (isInfDigErrorWithUrl) {\r\n            // We can control the event grouping using the Sentry SDK\r\n            // https://docs.sentry.io/platforms/javascript/guides/angular/enriching-events/fingerprinting/\r\n            event.fingerprint = ['{{ default }}'];\r\n\r\n            // This AngularJS \"Update task\" modal uses a downgraded Angular component - <bdx-quill-mention-form-element>.\r\n            // <bdx-quill-mention-form-element> uses ngx-quill to help integrate Quill with Angular, so events are fired outside of the Angular zone (change detection).\r\n            // For some navigation paths to this modal, we get an inifite $digest loop error when Quill is invoked.\r\n            if (isInfDigErrorWithUrl && (event.request.url.toString().includes('/task-summary') || event.request.url.toString().includes('/tasks/list'))) {\r\n                event.fingerprint.push('Tasks area');\r\n            }\r\n\r\n            // These events don't have repro steps, but we can group them based on location\r\n            if (isInfDigErrorWithUrl && (event.request.url.toString().includes('/properties/add'))) {\r\n                event.fingerprint.push('Properties/add area');\r\n            }\r\n\r\n            // These events don't have repro steps, but we can group them based on location\r\n            if (isInfDigErrorWithUrl && (event.request.url.toString().endsWith('/manager/app/'))) {\r\n                event.fingerprint.push('App init area');\r\n            }\r\n        }\r\n\r\n        return event;\r\n    }\r\n}\r\n","import { EmptyError } from './util/EmptyError';\nimport { SafeSubscriber } from './Subscriber';\nexport function firstValueFrom(source, config) {\n    const hasConfig = typeof config === 'object';\n    return new Promise((resolve, reject) => {\n        const subscriber = new SafeSubscriber({\n            next: (value) => {\n                resolve(value);\n                subscriber.unsubscribe();\n            },\n            error: reject,\n            complete: () => {\n                if (hasConfig) {\n                    resolve(config.defaultValue);\n                }\n                else {\n                    reject(new EmptyError());\n                }\n            },\n        });\n        source.subscribe(subscriber);\n    });\n}\n","import { APP_INITIALIZER, ErrorHandler, NgModule } from '@angular/core';\nimport { Router, UrlSerializer } from '@angular/router';\nimport { BrowserModule } from '@angular/platform-browser';\nimport { ReactiveFormsModule } from '@angular/forms';\nimport { HttpClientModule } from '@angular/common/http';\n\nimport * as Sentry from '@sentry/angular';\nimport { BdxHttpModule } from '@buildium/ngx-app-utility/dist';\n\nimport { AppRoutingModule } from './app-routing.module';\nimport { AppComponent } from './app.component';\nimport { CoreModule } from './core/core.module';\nimport { PublicGlobalErrorHandler } from './core/public-global-error-handler';\n\n// In general, we should NOT be importing services from other apps, but these will eventually come from a shared package\nimport { ToastMessageModule } from '../../../../src/app/core/toast-message/toast-message.module';\nimport { LowerCaseUrlSerializer } from '../../../../src/app/core/routes/lower-case-url-serializer';\nimport { SentryLoaderService } from '../../../../src/app/services/sentry-loader.service';\nimport { FeatureFlagService } from '../../../../src/app/services/feature-flag.service';\nimport { ErrorExtractorService } from '../../../../src/app/services/error-extractor.service';\n\n@NgModule({\n    declarations: [\n        AppComponent\n    ],\n    imports: [\n        BdxHttpModule,\n        CoreModule,\n        BrowserModule,\n        AppRoutingModule,\n        ReactiveFormsModule,\n        HttpClientModule,\n        ToastMessageModule\n    ],\n    providers: [\n        ErrorExtractorService,\n        FeatureFlagService,\n        {\n            provide: ErrorHandler,\n            useClass: PublicGlobalErrorHandler\n        },\n        {\n            provide: Sentry.TraceService,\n            deps: [Router],\n        },\n        {\n            provide: APP_INITIALIZER,\n            useFactory: (sentryLoaderService: SentryLoaderService) => {\n                return () => {\n                    sentryLoaderService.loadSentry();\n                };\n            },\n            deps: [SentryLoaderService],\n            multi: true,\n        },\n        {\n            provide: UrlSerializer,\n            useClass: LowerCaseUrlSerializer\n        }\n    ],\n    bootstrap: [AppComponent]\n})\nexport class AppModule { }\n","import { enableProdMode } from '@angular/core';\nimport { platformBrowserDynamic } from '@angular/platform-browser-dynamic';\n\nimport { AppModule } from './app/app.module';\nimport { environment } from './environments/environment';\n\nif (environment.production) {\n    enableProdMode();\n}\n\nplatformBrowserDynamic().bootstrapModule(AppModule)\n    .catch(err => console.error(err));\n","export enum ToastMessageAlertLevel {\r\n    SUCCESS,\r\n    ERROR\r\n}\r\n","import { Injectable, OnDestroy } from '@angular/core';\r\nimport { BehaviorSubject, Observable } from 'rxjs';\r\nimport { cloneDeep } from 'lodash';\r\n\r\n/**\r\n * PLEASE NOTE: This is not a singleton service, but a class to extend\r\n * when creating a unique stateful service\r\n */\r\n\r\n@Injectable()\r\nexport abstract class BaseStatefulServiceClass<T> implements OnDestroy {\r\n    public readonly $state: Observable<T>;\r\n    private readonly _state: BehaviorSubject<T>;\r\n    private _initialState: T;\r\n\r\n    protected constructor() {\r\n        this._initialState = null;\r\n        this._state = new BehaviorSubject(null);\r\n        this.$state = this._state.asObservable();\r\n    }\r\n\r\n    /**\r\n     * Get the current state object\r\n     * Choose to async pipe in templates wherever possible\r\n     */\r\n    public get state(): T {\r\n        return this._state.value;\r\n    }\r\n\r\n    /**\r\n     * Set the current state object\r\n     *\r\n     * @param stateObj\r\n     */\r\n    public set state(stateObj: T) {\r\n        // break object reference\r\n        const myCopy = cloneDeep(stateObj);\r\n        this._state.next(myCopy);\r\n    }\r\n\r\n    /**\r\n     * Initialize the state object with an initial value\r\n     * Usually an empty version of the service object\r\n     *\r\n     * @param initialState\r\n     */\r\n    public init(initialState: T): void {\r\n        this._initialState = cloneDeep(initialState);\r\n        this._state.next(initialState);\r\n    }\r\n\r\n    /**\r\n     * Check if a value of a certain property on the state object\r\n     * is equal to a supplied value\r\n     */\r\n    public propCheck(propName: keyof T, val: unknown): boolean {\r\n        return propName && (this.state || ({} as T))[propName] === val;\r\n    }\r\n\r\n    public resetToInitialState(): void {\r\n        this._state.next(this._initialState);\r\n    }\r\n\r\n    ngOnDestroy() {\r\n        this._state.complete();\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport { ToastMessage } from '../models/toast-message';\r\nimport { BaseStatefulServiceClass } from '../../classes/base-stateful-service.class';\r\nimport { ToastMessageAlertLevel } from '../enums/toast-message-alert-level.enum';\r\n\r\nconst TOAST_MESSAGE_STORAGE_KEY = 'savedToastMessage';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class ToastMessageStateService extends BaseStatefulServiceClass<ToastMessage> {\r\n    // eslint-disable-next-line @typescript-eslint/no-useless-constructor\r\n    constructor() {\r\n        super();\r\n    }\r\n\r\n    success(message: string, persist: boolean = false) {\r\n        this.state = {\r\n            message,\r\n            persist,\r\n            level: ToastMessageAlertLevel.SUCCESS\r\n        };\r\n    }\r\n\r\n    error(message: string, persist: boolean = false) {\r\n        this.state = {\r\n            message,\r\n            persist,\r\n            level: ToastMessageAlertLevel.ERROR\r\n        };\r\n    }\r\n\r\n    displayMessageOnNavigate(): ToastMessage {\r\n        const savedToastMessageObj = sessionStorage.getItem(TOAST_MESSAGE_STORAGE_KEY);\r\n        if (!savedToastMessageObj) {\r\n            return;\r\n        }\r\n\r\n        const savedToastMessage: ToastMessage = JSON.parse(savedToastMessageObj);\r\n\r\n        if (savedToastMessage.level === ToastMessageAlertLevel.SUCCESS) {\r\n            this.success(savedToastMessage.message);\r\n        }\r\n\r\n        if (savedToastMessage.level === ToastMessageAlertLevel.ERROR) {\r\n            this.error(savedToastMessage.message);\r\n        }\r\n\r\n        sessionStorage.removeItem(TOAST_MESSAGE_STORAGE_KEY);\r\n    }\r\n\r\n    successAfterNavigate(message: string, toastMessageAlertLevel = ToastMessageAlertLevel.SUCCESS): void {\r\n        const storedMessage: ToastMessage = {\r\n            message,\r\n            level: toastMessageAlertLevel,\r\n            persist: false\r\n        };\r\n        sessionStorage.setItem(TOAST_MESSAGE_STORAGE_KEY, JSON.stringify(storedMessage));\r\n    }\r\n\r\n    errorAfterNavigate(message: string, toastMessageAlertLevel = ToastMessageAlertLevel.ERROR): void {\r\n        const storedMessage: ToastMessage = {\r\n            message,\r\n            level: toastMessageAlertLevel,\r\n            persist: false\r\n        };\r\n        sessionStorage.setItem(TOAST_MESSAGE_STORAGE_KEY, JSON.stringify(storedMessage));\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\n\r\nfunction _window(): any {\r\n    // return the global native browser window object\r\n    return window;\r\n}\r\n\r\n@Injectable()\r\nexport class BrowserWindowService {\r\n    get nativeWindow(): any {\r\n        return _window();\r\n    }\r\n}\r\n","import { Subject } from './Subject';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\nexport class ReplaySubject extends Subject {\n    constructor(_bufferSize = Infinity, _windowTime = Infinity, _timestampProvider = dateTimestampProvider) {\n        super();\n        this._bufferSize = _bufferSize;\n        this._windowTime = _windowTime;\n        this._timestampProvider = _timestampProvider;\n        this._buffer = [];\n        this._infiniteTimeWindow = true;\n        this._infiniteTimeWindow = _windowTime === Infinity;\n        this._bufferSize = Math.max(1, _bufferSize);\n        this._windowTime = Math.max(1, _windowTime);\n    }\n    next(value) {\n        const { isStopped, _buffer, _infiniteTimeWindow, _timestampProvider, _windowTime } = this;\n        if (!isStopped) {\n            _buffer.push(value);\n            !_infiniteTimeWindow && _buffer.push(_timestampProvider.now() + _windowTime);\n        }\n        this._trimBuffer();\n        super.next(value);\n    }\n    _subscribe(subscriber) {\n        this._throwIfClosed();\n        this._trimBuffer();\n        const subscription = this._innerSubscribe(subscriber);\n        const { _infiniteTimeWindow, _buffer } = this;\n        const copy = _buffer.slice();\n        for (let i = 0; i < copy.length && !subscriber.closed; i += _infiniteTimeWindow ? 1 : 2) {\n            subscriber.next(copy[i]);\n        }\n        this._checkFinalizedStatuses(subscriber);\n        return subscription;\n    }\n    _trimBuffer() {\n        const { _bufferSize, _timestampProvider, _buffer, _infiniteTimeWindow } = this;\n        const adjustedBufferSize = (_infiniteTimeWindow ? 1 : 2) * _bufferSize;\n        _bufferSize < Infinity && adjustedBufferSize < _buffer.length && _buffer.splice(0, _buffer.length - adjustedBufferSize);\n        if (!_infiniteTimeWindow) {\n            const now = _timestampProvider.now();\n            let last = 0;\n            for (let i = 1; i < _buffer.length && _buffer[i] <= now; i += 2) {\n                last = i;\n            }\n            last && _buffer.splice(0, last + 1);\n        }\n    }\n}\n","import { Injectable } from '@angular/core';\r\nimport { LoggingApiService } from './logging-api.service';\r\nimport { HttpClient } from '@angular/common/http';\r\nimport { ErrorHash } from '@buildium/ngx-app-utility/dist';\r\nimport { BASE_PATH_API } from '@manager-base/app-base/environment/paths/constants';\r\nimport { Observable, of } from 'rxjs';\r\nimport { shareReplay } from 'rxjs/operators';\r\nimport { JsErrorDto } from '@root/src/shared/domain/dtos/js-error.dto';\r\n\r\n@Injectable()\r\nexport class FeatureFlagService {\r\n    private featureFlagCache = new Map<string, Observable<boolean>>();\r\n\r\n    keys = {\r\n        AiScreeningServiceFlag: 'ai-screening-service-flag',\r\n        AllianceBankServiceFlag: 'alliance-association-bank-service-flag',\r\n        ApprovalService: 'approvals-service-flag',\r\n        BankFeedServiceFlag: 'bank-feed-service-flag',\r\n        BatchReportsService: 'buildium-batch-reports-service-flag',\r\n        CalendarEventSeriesPatchingFlag: 'buildium-pt-13192-calendar-event-series-patching',\r\n        CalendarsServiceFlag: 'calendars-service-flag',\r\n        EnableCalendarEventRecurrenceEndDateDefaultsToOneYearFromStartDateFlag: 'buildium-pt-13224-enable-calendar-event-recurrence-end-date-defaults-to-one-year-from-start-date',\r\n        EnableSanitizingCalendarEventDescriptionFlag: 'buildium-pt-12958-enable-sanitizing-calendar-event-description',\r\n        ESignaturesServiceFlag: 'e-signatures-service-flag',\r\n        ExternalApiSandboxServiceFlag: 'buildium-api-sandbox-service-flag',\r\n        HaveIBeenPwnedService: 'haveibeenpwned-service-flag',\r\n        InvoiceProcessingServiceFlag: 'invoice-processing-service-flag',\r\n        KongApiService: 'kong-api-service-flag',\r\n        LookerServiceFlag: 'buildium-looker-service-flag',\r\n        OnsiteApiServiceFlag: 'onsite-api-service-flag',\r\n        RemotePrintingServiceFlag: 'remote-printing-service-flag',\r\n        RentersInsuranceService: 'renters-insurance-service-flag',\r\n        ReportingServiceFlag: 'reporting-service-flag',\r\n        ResidentFacingCalendarMilestone1Flag: 'buildium-pt-11816-resident-facing-calendar-milestone-1',\r\n        ResidentFacingCalendarMilestone15Flag: 'buildium-pt-12198-resident-facing-calendar-milestone-1-5',\r\n        ResidentFacingCalendarMilestone2Flag: 'buildium-pt-12198-resident-facing-calendar-milestone-2',\r\n        ShareAbleForRentalsServiceFlag: 'shareable-for-rentals-service-flag',\r\n        SnowflakeServiceFlag: 'buildium-snowflake-service-flag',\r\n        S3ServiceFlag: 's3-service-flag',\r\n        TwoFactorAuthenticationService: 'buildium-2fa-service-flag',\r\n        TwoWayEmailCommunication: 'buildium-two-way-email-communication',\r\n        ScheduleEmailsAnnually: 'buildium-schedule-emails-annually',\r\n        UseSentryForManagerClient: 'buildium-use-sentry-for-manager-client',\r\n        VirtualAssistantServiceFlag: 'buildium-virtual-assistant-service-flag',\r\n        VirtualAssistantM2CommsFlag: 'buildium-virtual-assistant-m2-comms-feature-flag',\r\n        WorkflowsFlag: 'buildium-workflows',\r\n        BillApprovalActivityFeedNotificationFlag: 'buildium-bill-approval-activity-feed-notification'\r\n    };\r\n\r\n    constructor(\r\n        private loggingApiService: LoggingApiService,\r\n        private http: HttpClient,\r\n        private errorHash: ErrorHash\r\n    ) {\r\n    }\r\n\r\n    retrieveFlag(key: string): Observable<boolean> {\r\n        return this.retrieveFlagCommon(key);\r\n    }\r\n\r\n    retrievePublicFlag(key: string): Observable<boolean> {\r\n        return this.retrieveFlagCommon(key, true);\r\n    }\r\n\r\n    private retrieveFlagCommon(key: string, isPublic: boolean = false): Observable<boolean> {\r\n        if (!key) {\r\n            const message = 'No feature flag found.';\r\n            const hash = this.errorHash.hashErrorString(message);\r\n            const jsErrorDto: JsErrorDto = {\r\n                message,\r\n                location: window.location.pathname,\r\n                userAgent: window.navigator.userAgent,\r\n                hash,\r\n                callstack: ''\r\n            };\r\n            this.loggingApiService.logError(jsErrorDto);\r\n            return of(false);\r\n        }\r\n\r\n        if (!this.featureFlagCache.has(key)) {\r\n            const url = `${BASE_PATH_API}/${isPublic ? 'public' : 'external'}/featureFlags/${key}`;\r\n            const observable = this.http.get<boolean>(url).pipe(\r\n                shareReplay(1)\r\n            );\r\n            this.featureFlagCache.set(key, observable);\r\n        }\r\n\r\n        return this.featureFlagCache.get(key);\r\n    }\r\n\r\n    isOverrideEnabled(): Observable<boolean> {\r\n        const url = `${BASE_PATH_API}/public/FeatureFlags/settings/overrides/validity`;\r\n        return this.http.get<boolean>(url);\r\n    }\r\n}\r\n","import { ReplaySubject } from '../ReplaySubject';\nimport { share } from './share';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n    var _a, _b;\n    let bufferSize;\n    let refCount = false;\n    if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n        bufferSize = (_a = configOrBufferSize.bufferSize) !== null && _a !== void 0 ? _a : Infinity;\n        windowTime = (_b = configOrBufferSize.windowTime) !== null && _b !== void 0 ? _b : Infinity;\n        refCount = !!configOrBufferSize.refCount;\n        scheduler = configOrBufferSize.scheduler;\n    }\n    else {\n        bufferSize = configOrBufferSize !== null && configOrBufferSize !== void 0 ? configOrBufferSize : Infinity;\n    }\n    return share({\n        connector: () => new ReplaySubject(bufferSize, windowTime, scheduler),\n        resetOnError: true,\n        resetOnComplete: false,\n        resetOnRefCountZero: refCount\n    });\n}\n","import { Injectable } from '@angular/core';\nimport { HttpClient } from '@angular/common/http';\nimport { ErrorHash } from '@buildium/ngx-app-utility/dist';\nimport { BASE_PATH_API } from '@manager-base/app-base/environment/paths/constants';\nimport { JsErrorDto } from '@root/src/shared/domain/dtos/js-error.dto';\nimport { BrowserWindowService } from '@root/src/app/services/browser-window.service';\nimport { PagePerformanceDto } from '@root/src/shared/domain/dtos/page-performance.dto';\nimport { Exception } from '@root/src/shared/domain/dtos/exception.dto';\n\n@Injectable({\n    providedIn: 'root'\n})\nexport class LoggingApiService {\n    readonly BASE_PATH_API = BASE_PATH_API;\n\n    constructor(\n        private http: HttpClient,\n        private $window: BrowserWindowService,\n        private errorHash: ErrorHash) {\n    }\n\n    createJsErrorDto(exception: any): JsErrorDto {\n        // check if we already have the correct dto\n        if (exception.message !== undefined\n            && exception.stack !== undefined\n            && exception.hash !== undefined\n            && exception.callstack !== undefined\n            && exception.userAgent !== undefined) {\n            return exception;\n        }\n        const hash = this.errorHash.hashErrorString(exception.toString());\n        const dto: JsErrorDto = {\n            message: exception.message,\n            location: this.$window.nativeWindow.location.pathname,\n            hash,\n            callstack: exception.stack,\n            userAgent: this.$window.nativeWindow.navigator.userAgent\n        };\n        return dto;\n    }\n\n    logWarningMessage(exception: any): void {\n        this.logWarning(\n            this.createJsErrorDto(exception)\n        );\n    }\n\n    logPagePerformance(data: PagePerformanceDto): void {\n        if (data.LoadTimeInMilliseconds !== undefined\n            && data.Url !== undefined) {\n            this.http.post(`${this.BASE_PATH_API}/logging/pageperformance`,\n                data).subscribe();\n        }\n    }\n\n    logError(data: JsErrorDto | Exception): void {\n        this.http.post(`${this.BASE_PATH_API}/logging/error`,\n            this.createJsErrorDto(data)).subscribe();\n    }\n\n    logWarning(data: JsErrorDto | Exception): void {\n        this.http.post(`${this.BASE_PATH_API}/logging/warning`,\n            this.createJsErrorDto(data)).subscribe();\n    }\n}\n","import { Injectable } from '@angular/core';\r\nimport { Subject } from 'rxjs';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class PageLoadingService {\r\n    isLoading$ = new Subject<boolean>();\r\n\r\n    start() {\r\n        this.isLoading$.next(true);\r\n    }\r\n\r\n    stop() {\r\n        this.isLoading$.next(false);\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport { Title } from '@angular/platform-browser';\r\n\r\nexport const defaultApplicationTitle = 'Buildium';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class PageTitleService {\r\n    appTitle = defaultApplicationTitle;\r\n    constructor(\r\n        private titleService: Title\r\n    ) { }\r\n\r\n    setTitle(pageTitle: string) {\r\n        let htmlDocTitle = this.appTitle;\r\n\r\n        if (pageTitle) {\r\n            htmlDocTitle = pageTitle;\r\n        }\r\n        this.titleService.setTitle(htmlDocTitle);\r\n    }\r\n}\r\n","/** @publicapi @module ng1 */ /** */\nimport * as ng_from_import from 'angular';\n/** @hidden */ var ng_from_global = angular;\n/** @hidden */ export var ng = ng_from_import && ng_from_import.module ? ng_from_import : ng_from_global;\n","/** @publicapi @module ng1 */ /** */\nimport { pick, forEach, tail, extend, isArray, isInjectable, isDefined, isString, services, trace, ViewService, ResolveContext, Resolvable, } from '@uirouter/core';\n/** @internalapi */\nexport function getNg1ViewConfigFactory() {\n    var templateFactory = null;\n    return function (path, view) {\n        templateFactory = templateFactory || services.$injector.get('$templateFactory');\n        return [new Ng1ViewConfig(path, view, templateFactory)];\n    };\n}\n/** @internalapi */\nvar hasAnyKey = function (keys, obj) { return keys.reduce(function (acc, key) { return acc || isDefined(obj[key]); }, false); };\n/**\n * This is a [[StateBuilder.builder]] function for angular1 `views`.\n *\n * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder\n * handles the `views` property with logic specific to @uirouter/angularjs (ng1).\n *\n * If no `views: {}` property exists on the [[StateDeclaration]], then it creates the `views` object\n * and applies the state-level configuration to a view named `$default`.\n *\n * @internalapi\n */\nexport function ng1ViewsBuilder(state) {\n    // Do not process root state\n    if (!state.parent)\n        return {};\n    var tplKeys = ['templateProvider', 'templateUrl', 'template', 'notify', 'async'], ctrlKeys = ['controller', 'controllerProvider', 'controllerAs', 'resolveAs'], compKeys = ['component', 'bindings', 'componentProvider'], nonCompKeys = tplKeys.concat(ctrlKeys), allViewKeys = compKeys.concat(nonCompKeys);\n    // Do not allow a state to have both state-level props and also a `views: {}` property.\n    // A state without a `views: {}` property can declare properties for the `$default` view as properties of the state.\n    // However, the `$default` approach should not be mixed with a separate `views: ` block.\n    if (isDefined(state.views) && hasAnyKey(allViewKeys, state)) {\n        throw new Error(\"State '\" + state.name + \"' has a 'views' object. \" +\n            \"It cannot also have \\\"view properties\\\" at the state level.  \" +\n            \"Move the following properties into a view (in the 'views' object): \" +\n            (\" \" + allViewKeys.filter(function (key) { return isDefined(state[key]); }).join(', ')));\n    }\n    var views = {}, viewsObject = state.views || { $default: pick(state, allViewKeys) };\n    forEach(viewsObject, function (config, name) {\n        // Account for views: { \"\": { template... } }\n        name = name || '$default';\n        // Account for views: { header: \"headerComponent\" }\n        if (isString(config))\n            config = { component: config };\n        // Make a shallow copy of the config object\n        config = extend({}, config);\n        // Do not allow a view to mix props for component-style view with props for template/controller-style view\n        if (hasAnyKey(compKeys, config) && hasAnyKey(nonCompKeys, config)) {\n            throw new Error(\"Cannot combine: \" + compKeys.join('|') + \" with: \" + nonCompKeys.join('|') + \" in stateview: '\" + name + \"@\" + state.name + \"'\");\n        }\n        config.resolveAs = config.resolveAs || '$resolve';\n        config.$type = 'ng1';\n        config.$context = state;\n        config.$name = name;\n        var normalized = ViewService.normalizeUIViewTarget(config.$context, config.$name);\n        config.$uiViewName = normalized.uiViewName;\n        config.$uiViewContextAnchor = normalized.uiViewContextAnchor;\n        views[name] = config;\n    });\n    return views;\n}\n/** @hidden */\nvar id = 0;\n/** @internalapi */\nvar Ng1ViewConfig = /** @class */ (function () {\n    function Ng1ViewConfig(path, viewDecl, factory) {\n        var _this = this;\n        this.path = path;\n        this.viewDecl = viewDecl;\n        this.factory = factory;\n        this.$id = id++;\n        this.loaded = false;\n        this.getTemplate = function (uiView, context) {\n            return _this.component\n                ? _this.factory.makeComponentTemplate(uiView, context, _this.component, _this.viewDecl.bindings)\n                : _this.template;\n        };\n    }\n    Ng1ViewConfig.prototype.load = function () {\n        var _this = this;\n        var $q = services.$q;\n        var context = new ResolveContext(this.path);\n        var params = this.path.reduce(function (acc, node) { return extend(acc, node.paramValues); }, {});\n        var promises = {\n            template: $q.when(this.factory.fromConfig(this.viewDecl, params, context)),\n            controller: $q.when(this.getController(context)),\n        };\n        return $q.all(promises).then(function (results) {\n            trace.traceViewServiceEvent('Loaded', _this);\n            _this.controller = results.controller;\n            extend(_this, results.template); // Either { template: \"tpl\" } or { component: \"cmpName\" }\n            return _this;\n        });\n    };\n    /**\n     * Gets the controller for a view configuration.\n     *\n     * @returns {Function|Promise.<Function>} Returns a controller, or a promise that resolves to a controller.\n     */\n    Ng1ViewConfig.prototype.getController = function (context) {\n        var provider = this.viewDecl.controllerProvider;\n        if (!isInjectable(provider))\n            return this.viewDecl.controller;\n        var deps = services.$injector.annotate(provider);\n        var providerFn = isArray(provider) ? tail(provider) : provider;\n        var resolvable = new Resolvable('', providerFn, deps);\n        return resolvable.get(context);\n    };\n    return Ng1ViewConfig;\n}());\nexport { Ng1ViewConfig };\n","/** @publicapi @module view */ /** */\nimport { ng as angular } from './angular';\nimport { isArray, isDefined, isFunction, isObject, services, tail, kebobString, unnestR, Resolvable, } from '@uirouter/core';\n/**\n * Service which manages loading of templates from a ViewConfig.\n */\nvar TemplateFactory = /** @class */ (function () {\n    function TemplateFactory() {\n        var _this = this;\n        /** @hidden */ this._useHttp = angular.version.minor < 3;\n        /** @hidden */ this.$get = [\n            '$http',\n            '$templateCache',\n            '$injector',\n            function ($http, $templateCache, $injector) {\n                _this.$templateRequest = $injector.has && $injector.has('$templateRequest') && $injector.get('$templateRequest');\n                _this.$http = $http;\n                _this.$templateCache = $templateCache;\n                return _this;\n            },\n        ];\n    }\n    /** @hidden */\n    TemplateFactory.prototype.useHttpService = function (value) {\n        this._useHttp = value;\n    };\n    /**\n     * Creates a template from a configuration object.\n     *\n     * @param config Configuration object for which to load a template.\n     * The following properties are search in the specified order, and the first one\n     * that is defined is used to create the template:\n     *\n     * @param params  Parameters to pass to the template function.\n     * @param context The resolve context associated with the template's view\n     *\n     * @return {string|object}  The template html as a string, or a promise for\n     * that string,or `null` if no template is configured.\n     */\n    TemplateFactory.prototype.fromConfig = function (config, params, context) {\n        var defaultTemplate = '<ui-view></ui-view>';\n        var asTemplate = function (result) { return services.$q.when(result).then(function (str) { return ({ template: str }); }); };\n        var asComponent = function (result) { return services.$q.when(result).then(function (str) { return ({ component: str }); }); };\n        return isDefined(config.template)\n            ? asTemplate(this.fromString(config.template, params))\n            : isDefined(config.templateUrl)\n                ? asTemplate(this.fromUrl(config.templateUrl, params))\n                : isDefined(config.templateProvider)\n                    ? asTemplate(this.fromProvider(config.templateProvider, params, context))\n                    : isDefined(config.component)\n                        ? asComponent(config.component)\n                        : isDefined(config.componentProvider)\n                            ? asComponent(this.fromComponentProvider(config.componentProvider, params, context))\n                            : asTemplate(defaultTemplate);\n    };\n    /**\n     * Creates a template from a string or a function returning a string.\n     *\n     * @param template html template as a string or function that returns an html template as a string.\n     * @param params Parameters to pass to the template function.\n     *\n     * @return {string|object} The template html as a string, or a promise for that\n     * string.\n     */\n    TemplateFactory.prototype.fromString = function (template, params) {\n        return isFunction(template) ? template(params) : template;\n    };\n    /**\n     * Loads a template from the a URL via `$http` and `$templateCache`.\n     *\n     * @param {string|Function} url url of the template to load, or a function\n     * that returns a url.\n     * @param {Object} params Parameters to pass to the url function.\n     * @return {string|Promise.<string>} The template html as a string, or a promise\n     * for that string.\n     */\n    TemplateFactory.prototype.fromUrl = function (url, params) {\n        if (isFunction(url))\n            url = url(params);\n        if (url == null)\n            return null;\n        if (this._useHttp) {\n            return this.$http\n                .get(url, { cache: this.$templateCache, headers: { Accept: 'text/html' } })\n                .then(function (response) {\n                return response.data;\n            });\n        }\n        return this.$templateRequest(url);\n    };\n    /**\n     * Creates a template by invoking an injectable provider function.\n     *\n     * @param provider Function to invoke via `locals`\n     * @param {Function} injectFn a function used to invoke the template provider\n     * @return {string|Promise.<string>} The template html as a string, or a promise\n     * for that string.\n     */\n    TemplateFactory.prototype.fromProvider = function (provider, params, context) {\n        var deps = services.$injector.annotate(provider);\n        var providerFn = isArray(provider) ? tail(provider) : provider;\n        var resolvable = new Resolvable('', providerFn, deps);\n        return resolvable.get(context);\n    };\n    /**\n     * Creates a component's template by invoking an injectable provider function.\n     *\n     * @param provider Function to invoke via `locals`\n     * @param {Function} injectFn a function used to invoke the template provider\n     * @return {string} The template html as a string: \"<component-name input1='::$resolve.foo'></component-name>\".\n     */\n    TemplateFactory.prototype.fromComponentProvider = function (provider, params, context) {\n        var deps = services.$injector.annotate(provider);\n        var providerFn = isArray(provider) ? tail(provider) : provider;\n        var resolvable = new Resolvable('', providerFn, deps);\n        return resolvable.get(context);\n    };\n    /**\n     * Creates a template from a component's name\n     *\n     * This implements route-to-component.\n     * It works by retrieving the component (directive) metadata from the injector.\n     * It analyses the component's bindings, then constructs a template that instantiates the component.\n     * The template wires input and output bindings to resolves or from the parent component.\n     *\n     * @param uiView {object} The parent ui-view (for binding outputs to callbacks)\n     * @param context The ResolveContext (for binding outputs to callbacks returned from resolves)\n     * @param component {string} Component's name in camel case.\n     * @param bindings An object defining the component's bindings: {foo: '<'}\n     * @return {string} The template as a string: \"<component-name input1='::$resolve.foo'></component-name>\".\n     */\n    TemplateFactory.prototype.makeComponentTemplate = function (uiView, context, component, bindings) {\n        bindings = bindings || {};\n        // Bind once prefix\n        var prefix = angular.version.minor >= 3 ? '::' : '';\n        // Convert to kebob name. Add x- prefix if the string starts with `x-` or `data-`\n        var kebob = function (camelCase) {\n            var kebobed = kebobString(camelCase);\n            return /^(x|data)-/.exec(kebobed) ? \"x-\" + kebobed : kebobed;\n        };\n        var attributeTpl = function (input) {\n            var name = input.name, type = input.type;\n            var attrName = kebob(name);\n            // If the ui-view has an attribute which matches a binding on the routed component\n            // then pass that attribute through to the routed component template.\n            // Prefer ui-view wired mappings to resolve data, unless the resolve was explicitly bound using `bindings:`\n            if (uiView.attr(attrName) && !bindings[name])\n                return attrName + \"='\" + uiView.attr(attrName) + \"'\";\n            var resolveName = bindings[name] || name;\n            // Pre-evaluate the expression for \"@\" bindings by enclosing in {{ }}\n            // some-attr=\"{{ ::$resolve.someResolveName }}\"\n            if (type === '@')\n                return attrName + \"='{{\" + prefix + \"$resolve.\" + resolveName + \"}}'\";\n            // Wire \"&\" callbacks to resolves that return a callback function\n            // Get the result of the resolve (should be a function) and annotate it to get its arguments.\n            // some-attr=\"$resolve.someResolveResultName(foo, bar)\"\n            if (type === '&') {\n                var res = context.getResolvable(resolveName);\n                var fn = res && res.data;\n                var args = (fn && services.$injector.annotate(fn)) || [];\n                // account for array style injection, i.e., ['foo', function(foo) {}]\n                var arrayIdxStr = isArray(fn) ? \"[\" + (fn.length - 1) + \"]\" : '';\n                return attrName + \"='$resolve.\" + resolveName + arrayIdxStr + \"(\" + args.join(',') + \")'\";\n            }\n            // some-attr=\"::$resolve.someResolveName\"\n            return attrName + \"='\" + prefix + \"$resolve.\" + resolveName + \"'\";\n        };\n        var attrs = getComponentBindings(component).map(attributeTpl).join(' ');\n        var kebobName = kebob(component);\n        return \"<\" + kebobName + \" \" + attrs + \"></\" + kebobName + \">\";\n    };\n    return TemplateFactory;\n}());\nexport { TemplateFactory };\n// Gets all the directive(s)' inputs ('@', '=', and '<') and outputs ('&')\nfunction getComponentBindings(name) {\n    var cmpDefs = services.$injector.get(name + 'Directive'); // could be multiple\n    if (!cmpDefs || !cmpDefs.length)\n        throw new Error(\"Unable to find component named '\" + name + \"'\");\n    return cmpDefs.map(getBindings).reduce(unnestR, []);\n}\n// Given a directive definition, find its object input attributes\n// Use different properties, depending on the type of directive (component, bindToController, normal)\nvar getBindings = function (def) {\n    if (isObject(def.bindToController))\n        return scopeBindings(def.bindToController);\n    return scopeBindings(def.scope);\n};\n// for ng 1.2 style, process the scope: { input: \"=foo\" }\n// for ng 1.3 through ng 1.5, process the component's bindToController: { input: \"=foo\" } object\nvar scopeBindings = function (bindingsObj) {\n    return Object.keys(bindingsObj || {})\n        // [ 'input', [ '=foo', '=', 'foo' ] ]\n        .map(function (key) { return [key, /^([=<@&])[?]?(.*)/.exec(bindingsObj[key])]; })\n        // skip malformed values\n        .filter(function (tuple) { return isDefined(tuple) && isArray(tuple[1]); })\n        // { name: ('foo' || 'input'), type: '=' }\n        .map(function (tuple) { return ({ name: tuple[1][2] || tuple[0], type: tuple[1][1] }); });\n};\n","/** @publicapi @module ng1 */ /** */\nimport { val, isObject, createProxyFunctions, } from '@uirouter/core';\n/**\n * The Angular 1 `StateProvider`\n *\n * The `$stateProvider` works similar to Angular's v1 router, but it focuses purely\n * on state.\n *\n * A state corresponds to a \"place\" in the application in terms of the overall UI and\n * navigation. A state describes (via the controller / template / view properties) what\n * the UI looks like and does at that place.\n *\n * States often have things in common, and the primary way of factoring out these\n * commonalities in this model is via the state hierarchy, i.e. parent/child states aka\n * nested states.\n *\n * The `$stateProvider` provides interfaces to declare these states for your app.\n */\nvar StateProvider = /** @class */ (function () {\n    function StateProvider(stateRegistry, stateService) {\n        this.stateRegistry = stateRegistry;\n        this.stateService = stateService;\n        createProxyFunctions(val(StateProvider.prototype), this, val(this));\n    }\n    /**\n     * Decorates states when they are registered\n     *\n     * Allows you to extend (carefully) or override (at your own peril) the\n     * `stateBuilder` object used internally by [[StateRegistry]].\n     * This can be used to add custom functionality to ui-router,\n     * for example inferring templateUrl based on the state name.\n     *\n     * When passing only a name, it returns the current (original or decorated) builder\n     * function that matches `name`.\n     *\n     * The builder functions that can be decorated are listed below. Though not all\n     * necessarily have a good use case for decoration, that is up to you to decide.\n     *\n     * In addition, users can attach custom decorators, which will generate new\n     * properties within the state's internal definition. There is currently no clear\n     * use-case for this beyond accessing internal states (i.e. $state.$current),\n     * however, expect this to become increasingly relevant as we introduce additional\n     * meta-programming features.\n     *\n     * **Warning**: Decorators should not be interdependent because the order of\n     * execution of the builder functions in non-deterministic. Builder functions\n     * should only be dependent on the state definition object and super function.\n     *\n     *\n     * Existing builder functions and current return values:\n     *\n     * - **parent** `{object}` - returns the parent state object.\n     * - **data** `{object}` - returns state data, including any inherited data that is not\n     *   overridden by own values (if any).\n     * - **url** `{object}` - returns a {@link ui.router.util.type:UrlMatcher UrlMatcher}\n     *   or `null`.\n     * - **navigable** `{object}` - returns closest ancestor state that has a URL (aka is\n     *   navigable).\n     * - **params** `{object}` - returns an array of state params that are ensured to\n     *   be a super-set of parent's params.\n     * - **views** `{object}` - returns a views object where each key is an absolute view\n     *   name (i.e. \"viewName@stateName\") and each value is the config object\n     *   (template, controller) for the view. Even when you don't use the views object\n     *   explicitly on a state config, one is still created for you internally.\n     *   So by decorating this builder function you have access to decorating template\n     *   and controller properties.\n     * - **ownParams** `{object}` - returns an array of params that belong to the state,\n     *   not including any params defined by ancestor states.\n     * - **path** `{string}` - returns the full path from the root down to this state.\n     *   Needed for state activation.\n     * - **includes** `{object}` - returns an object that includes every state that\n     *   would pass a `$state.includes()` test.\n     *\n     * #### Example:\n     * Override the internal 'views' builder with a function that takes the state\n     * definition, and a reference to the internal function being overridden:\n     * ```js\n     * $stateProvider.decorator('views', function (state, parent) {\n     *   let result = {},\n     *       views = parent(state);\n     *\n     *   angular.forEach(views, function (config, name) {\n     *     let autoName = (state.name + '.' + name).replace('.', '/');\n     *     config.templateUrl = config.templateUrl || '/partials/' + autoName + '.html';\n     *     result[name] = config;\n     *   });\n     *   return result;\n     * });\n     *\n     * $stateProvider.state('home', {\n     *   views: {\n     *     'contact.list': { controller: 'ListController' },\n     *     'contact.item': { controller: 'ItemController' }\n     *   }\n     * });\n     * ```\n     *\n     *\n     * ```js\n     * // Auto-populates list and item views with /partials/home/contact/list.html,\n     * // and /partials/home/contact/item.html, respectively.\n     * $state.go('home');\n     * ```\n     *\n     * @param {string} name The name of the builder function to decorate.\n     * @param {object} func A function that is responsible for decorating the original\n     * builder function. The function receives two parameters:\n     *\n     *   - `{object}` - state - The state config object.\n     *   - `{object}` - super - The original builder function.\n     *\n     * @return {object} $stateProvider - $stateProvider instance\n     */\n    StateProvider.prototype.decorator = function (name, func) {\n        return this.stateRegistry.decorator(name, func) || this;\n    };\n    StateProvider.prototype.state = function (name, definition) {\n        if (isObject(name)) {\n            definition = name;\n        }\n        else {\n            definition.name = name;\n        }\n        this.stateRegistry.register(definition);\n        return this;\n    };\n    /**\n     * Registers an invalid state handler\n     *\n     * This is a passthrough to [[StateService.onInvalid]] for ng1.\n     */\n    StateProvider.prototype.onInvalid = function (callback) {\n        return this.stateService.onInvalid(callback);\n    };\n    return StateProvider;\n}());\nexport { StateProvider };\n","/** @publicapi @module ng1 */ /** */\nimport { services, ResolveContext, extend, } from '@uirouter/core';\nimport { getLocals } from '../services';\n/**\n * This is a [[StateBuilder.builder]] function for angular1 `onEnter`, `onExit`,\n * `onRetain` callback hooks on a [[Ng1StateDeclaration]].\n *\n * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder\n * ensures that those hooks are injectable for @uirouter/angularjs (ng1).\n *\n * @internalapi\n */\nexport var getStateHookBuilder = function (hookName) {\n    return function stateHookBuilder(stateObject) {\n        var hook = stateObject[hookName];\n        var pathname = hookName === 'onExit' ? 'from' : 'to';\n        function decoratedNg1Hook(trans, state) {\n            var resolveContext = new ResolveContext(trans.treeChanges(pathname));\n            var subContext = resolveContext.subContext(state.$$state());\n            var locals = extend(getLocals(subContext), { $state$: state, $transition$: trans });\n            return services.$injector.invoke(hook, this, locals);\n        }\n        return hook ? decoratedNg1Hook : undefined;\n    };\n};\n","/** @publicapi @module ng1 */ /** */\nimport { isDefined } from '@uirouter/core';\nimport { val, createProxyFunctions, removeFrom, isObject } from '@uirouter/core';\n/**\n * Implements UI-Router LocationServices and LocationConfig using Angular 1's $location service\n * @internalapi\n */\nvar Ng1LocationServices = /** @class */ (function () {\n    function Ng1LocationServices($locationProvider) {\n        // .onChange() registry\n        this._urlListeners = [];\n        this.$locationProvider = $locationProvider;\n        var _lp = val($locationProvider);\n        createProxyFunctions(_lp, this, _lp, ['hashPrefix']);\n    }\n    /**\n     * Applys ng1-specific path parameter encoding\n     *\n     * The Angular 1 `$location` service is a bit weird.\n     * It doesn't allow slashes to be encoded/decoded bi-directionally.\n     *\n     * See the writeup at https://github.com/angular-ui/ui-router/issues/2598\n     *\n     * This code patches the `path` parameter type so it encoded/decodes slashes as ~2F\n     *\n     * @param router\n     */\n    Ng1LocationServices.monkeyPatchPathParameterType = function (router) {\n        var pathType = router.urlMatcherFactory.type('path');\n        pathType.encode = function (x) {\n            return x != null ? x.toString().replace(/(~|\\/)/g, function (m) { return ({ '~': '~~', '/': '~2F' }[m]); }) : x;\n        };\n        pathType.decode = function (x) {\n            return x != null ? x.toString().replace(/(~~|~2F)/g, function (m) { return ({ '~~': '~', '~2F': '/' }[m]); }) : x;\n        };\n    };\n    // eslint-disable-next-line @typescript-eslint/no-empty-function\n    Ng1LocationServices.prototype.dispose = function () { };\n    Ng1LocationServices.prototype.onChange = function (callback) {\n        var _this = this;\n        this._urlListeners.push(callback);\n        return function () { return removeFrom(_this._urlListeners)(callback); };\n    };\n    Ng1LocationServices.prototype.html5Mode = function () {\n        var html5Mode = this.$locationProvider.html5Mode();\n        html5Mode = isObject(html5Mode) ? html5Mode.enabled : html5Mode;\n        return html5Mode && this.$sniffer.history;\n    };\n    Ng1LocationServices.prototype.baseHref = function () {\n        return this._baseHref || (this._baseHref = this.$browser.baseHref() || this.$window.location.pathname);\n    };\n    Ng1LocationServices.prototype.url = function (newUrl, replace, state) {\n        if (replace === void 0) { replace = false; }\n        if (isDefined(newUrl))\n            this.$location.url(newUrl);\n        if (replace)\n            this.$location.replace();\n        if (state)\n            this.$location.state(state);\n        return this.$location.url();\n    };\n    Ng1LocationServices.prototype._runtimeServices = function ($rootScope, $location, $sniffer, $browser, $window) {\n        var _this = this;\n        this.$location = $location;\n        this.$sniffer = $sniffer;\n        this.$browser = $browser;\n        this.$window = $window;\n        // Bind $locationChangeSuccess to the listeners registered in LocationService.onChange\n        $rootScope.$on('$locationChangeSuccess', function (evt) { return _this._urlListeners.forEach(function (fn) { return fn(evt); }); });\n        var _loc = val($location);\n        // Bind these LocationService functions to $location\n        createProxyFunctions(_loc, this, _loc, ['replace', 'path', 'search', 'hash']);\n        // Bind these LocationConfig functions to $location\n        createProxyFunctions(_loc, this, _loc, ['port', 'protocol', 'host']);\n    };\n    return Ng1LocationServices;\n}());\nexport { Ng1LocationServices };\n","/** @publicapi @module url */ /** */\nimport { BaseUrlRule, } from '@uirouter/core';\nimport { services, isString, isFunction, isArray, identity } from '@uirouter/core';\n/**\n * Manages rules for client-side URL\n *\n * ### Deprecation warning:\n * This class is now considered to be an internal API\n * Use the [[UrlService]] instead.\n * For configuring URL rules, use the [[UrlRulesApi]] which can be found as [[UrlService.rules]].\n *\n * This class manages the router rules for what to do when the URL changes.\n *\n * This provider remains for backwards compatibility.\n *\n * @internalapi\n * @deprecated\n */\nvar UrlRouterProvider = /** @class */ (function () {\n    /** @hidden */\n    function UrlRouterProvider(/** @hidden */ router) {\n        this.router = router;\n    }\n    UrlRouterProvider.injectableHandler = function (router, handler) {\n        return function (match) { return services.$injector.invoke(handler, null, { $match: match, $stateParams: router.globals.params }); };\n    };\n    /** @hidden */\n    UrlRouterProvider.prototype.$get = function () {\n        var urlService = this.router.urlService;\n        this.router.urlRouter.update(true);\n        if (!urlService.interceptDeferred)\n            urlService.listen();\n        return this.router.urlRouter;\n    };\n    /**\n     * Registers a url handler function.\n     *\n     * Registers a low level url handler (a `rule`).\n     * A rule detects specific URL patterns and returns a redirect, or performs some action.\n     *\n     * If a rule returns a string, the URL is replaced with the string, and all rules are fired again.\n     *\n     * #### Example:\n     * ```js\n     * var app = angular.module('app', ['ui.router.router']);\n     *\n     * app.config(function ($urlRouterProvider) {\n     *   // Here's an example of how you might allow case insensitive urls\n     *   $urlRouterProvider.rule(function ($injector, $location) {\n     *     var path = $location.path(),\n     *         normalized = path.toLowerCase();\n     *\n     *     if (path !== normalized) {\n     *       return normalized;\n     *     }\n     *   });\n     * });\n     * ```\n     *\n     * @param ruleFn\n     * Handler function that takes `$injector` and `$location` services as arguments.\n     * You can use them to detect a url and return a different url as a string.\n     *\n     * @return [[UrlRouterProvider]] (`this`)\n     */\n    UrlRouterProvider.prototype.rule = function (ruleFn) {\n        var _this = this;\n        if (!isFunction(ruleFn))\n            throw new Error(\"'rule' must be a function\");\n        var match = function () { return ruleFn(services.$injector, _this.router.locationService); };\n        var rule = new BaseUrlRule(match, identity);\n        this.router.urlService.rules.rule(rule);\n        return this;\n    };\n    /**\n     * Defines the path or behavior to use when no url can be matched.\n     *\n     * #### Example:\n     * ```js\n     * var app = angular.module('app', ['ui.router.router']);\n     *\n     * app.config(function ($urlRouterProvider) {\n     *   // if the path doesn't match any of the urls you configured\n     *   // otherwise will take care of routing the user to the\n     *   // specified url\n     *   $urlRouterProvider.otherwise('/index');\n     *\n     *   // Example of using function rule as param\n     *   $urlRouterProvider.otherwise(function ($injector, $location) {\n     *     return '/a/valid/url';\n     *   });\n     * });\n     * ```\n     *\n     * @param rule\n     * The url path you want to redirect to or a function rule that returns the url path or performs a `$state.go()`.\n     * The function version is passed two params: `$injector` and `$location` services, and should return a url string.\n     *\n     * @return {object} `$urlRouterProvider` - `$urlRouterProvider` instance\n     */\n    UrlRouterProvider.prototype.otherwise = function (rule) {\n        var _this = this;\n        var urlRules = this.router.urlService.rules;\n        if (isString(rule)) {\n            urlRules.otherwise(rule);\n        }\n        else if (isFunction(rule)) {\n            urlRules.otherwise(function () { return rule(services.$injector, _this.router.locationService); });\n        }\n        else {\n            throw new Error(\"'rule' must be a string or function\");\n        }\n        return this;\n    };\n    /**\n     * Registers a handler for a given url matching.\n     *\n     * If the handler is a string, it is\n     * treated as a redirect, and is interpolated according to the syntax of match\n     * (i.e. like `String.replace()` for `RegExp`, or like a `UrlMatcher` pattern otherwise).\n     *\n     * If the handler is a function, it is injectable.\n     * It gets invoked if `$location` matches.\n     * You have the option of inject the match object as `$match`.\n     *\n     * The handler can return\n     *\n     * - **falsy** to indicate that the rule didn't match after all, then `$urlRouter`\n     *   will continue trying to find another one that matches.\n     * - **string** which is treated as a redirect and passed to `$location.url()`\n     * - **void** or any **truthy** value tells `$urlRouter` that the url was handled.\n     *\n     * #### Example:\n     * ```js\n     * var app = angular.module('app', ['ui.router.router']);\n     *\n     * app.config(function ($urlRouterProvider) {\n     *   $urlRouterProvider.when($state.url, function ($match, $stateParams) {\n     *     if ($state.$current.navigable !== state ||\n     *         !equalForKeys($match, $stateParams) {\n     *      $state.transitionTo(state, $match, false);\n     *     }\n     *   });\n     * });\n     * ```\n     *\n     * @param what A pattern string to match, compiled as a [[UrlMatcher]].\n     * @param handler The path (or function that returns a path) that you want to redirect your user to.\n     * @param ruleCallback [optional] A callback that receives the `rule` registered with [[UrlMatcher.rule]]\n     *\n     * Note: the handler may also invoke arbitrary code, such as `$state.go()`\n     */\n    UrlRouterProvider.prototype.when = function (what, handler) {\n        if (isArray(handler) || isFunction(handler)) {\n            handler = UrlRouterProvider.injectableHandler(this.router, handler);\n        }\n        this.router.urlService.rules.when(what, handler);\n        return this;\n    };\n    /**\n     * Disables monitoring of the URL.\n     *\n     * Call this method before UI-Router has bootstrapped.\n     * It will stop UI-Router from performing the initial url sync.\n     *\n     * This can be useful to perform some asynchronous initialization before the router starts.\n     * Once the initialization is complete, call [[listen]] to tell UI-Router to start watching and synchronizing the URL.\n     *\n     * #### Example:\n     * ```js\n     * var app = angular.module('app', ['ui.router']);\n     *\n     * app.config(function ($urlRouterProvider) {\n     *   // Prevent $urlRouter from automatically intercepting URL changes;\n     *   $urlRouterProvider.deferIntercept();\n     * })\n     *\n     * app.run(function (MyService, $urlRouter, $http) {\n     *   $http.get(\"/stuff\").then(function(resp) {\n     *     MyService.doStuff(resp.data);\n     *     $urlRouter.listen();\n     *     $urlRouter.sync();\n     *   });\n     * });\n     * ```\n     *\n     * @param defer Indicates whether to defer location change interception.\n     *        Passing no parameter is equivalent to `true`.\n     */\n    UrlRouterProvider.prototype.deferIntercept = function (defer) {\n        this.router.urlService.deferIntercept(defer);\n    };\n    return UrlRouterProvider;\n}());\nexport { UrlRouterProvider };\n","/* eslint-disable @typescript-eslint/no-empty-function */\n/* eslint-disable @typescript-eslint/no-unused-vars */\n/**\n * # Angular 1 types\n *\n * UI-Router core provides various Typescript types which you can use for code completion and validating parameter values, etc.\n * The customizations to the core types for Angular UI-Router are documented here.\n *\n * The optional [[$resolve]] service is also documented here.\n *\n * @preferred @publicapi @module ng1\n */ /** */\nimport { ng as angular } from './angular';\nimport { services, applyPairs, isString, trace, extend, UIRouter, unnestR, } from '@uirouter/core';\nimport { ng1ViewsBuilder, getNg1ViewConfigFactory } from './statebuilders/views';\nimport { TemplateFactory } from './templateFactory';\nimport { StateProvider } from './stateProvider';\nimport { getStateHookBuilder } from './statebuilders/onEnterExitRetain';\nimport { Ng1LocationServices } from './locationServices';\nimport { UrlRouterProvider } from './urlRouterProvider';\nangular.module('ui.router.angular1', []);\nvar mod_init = angular.module('ui.router.init', ['ng']);\nvar mod_util = angular.module('ui.router.util', ['ui.router.init']);\nvar mod_rtr = angular.module('ui.router.router', ['ui.router.util']);\nvar mod_state = angular.module('ui.router.state', ['ui.router.router', 'ui.router.util', 'ui.router.angular1']);\nvar mod_main = angular.module('ui.router', ['ui.router.init', 'ui.router.state', 'ui.router.angular1']);\nvar mod_cmpt = angular.module('ui.router.compat', ['ui.router']);\nvar router = null;\n$uiRouterProvider.$inject = ['$locationProvider'];\n/** This angular 1 provider instantiates a Router and exposes its services via the angular injector */\nfunction $uiRouterProvider($locationProvider) {\n    // Create a new instance of the Router when the $uiRouterProvider is initialized\n    router = this.router = new UIRouter();\n    router.stateProvider = new StateProvider(router.stateRegistry, router.stateService);\n    // Apply ng1 specific StateBuilder code for `views`, `resolve`, and `onExit/Retain/Enter` properties\n    router.stateRegistry.decorator('views', ng1ViewsBuilder);\n    router.stateRegistry.decorator('onExit', getStateHookBuilder('onExit'));\n    router.stateRegistry.decorator('onRetain', getStateHookBuilder('onRetain'));\n    router.stateRegistry.decorator('onEnter', getStateHookBuilder('onEnter'));\n    router.viewService._pluginapi._viewConfigFactory('ng1', getNg1ViewConfigFactory());\n    // Disable decoding of params by UrlMatcherFactory because $location already handles this\n    router.urlService.config._decodeParams = false;\n    var ng1LocationService = (router.locationService = router.locationConfig = new Ng1LocationServices($locationProvider));\n    Ng1LocationServices.monkeyPatchPathParameterType(router);\n    // backwards compat: also expose router instance as $uiRouterProvider.router\n    router['router'] = router;\n    router['$get'] = $get;\n    $get.$inject = ['$location', '$browser', '$window', '$sniffer', '$rootScope', '$http', '$templateCache'];\n    function $get($location, $browser, $window, $sniffer, $rootScope, $http, $templateCache) {\n        ng1LocationService._runtimeServices($rootScope, $location, $sniffer, $browser, $window);\n        delete router['router'];\n        delete router['$get'];\n        return router;\n    }\n    return router;\n}\nvar getProviderFor = function (serviceName) { return [\n    '$uiRouterProvider',\n    function ($urp) {\n        var service = $urp.router[serviceName];\n        service['$get'] = function () { return service; };\n        return service;\n    },\n]; };\n// This effectively calls $get() on `$uiRouterProvider` to trigger init (when ng enters runtime)\nrunBlock.$inject = ['$injector', '$q', '$uiRouter'];\nfunction runBlock($injector, $q, $uiRouter) {\n    services.$injector = $injector;\n    services.$q = $q;\n    // https://github.com/angular-ui/ui-router/issues/3678\n    if (!Object.prototype.hasOwnProperty.call($injector, 'strictDi')) {\n        try {\n            $injector.invoke(function (checkStrictDi) { });\n        }\n        catch (error) {\n            $injector.strictDi = !!/strict mode/.exec(error && error.toString());\n        }\n    }\n    // The $injector is now available.\n    // Find any resolvables that had dependency annotation deferred\n    $uiRouter.stateRegistry\n        .get()\n        .map(function (x) { return x.$$state().resolvables; })\n        .reduce(unnestR, [])\n        .filter(function (x) { return x.deps === 'deferred'; })\n        .forEach(function (resolvable) { return (resolvable.deps = $injector.annotate(resolvable.resolveFn, $injector.strictDi)); });\n}\n// $urlRouter service and $urlRouterProvider\nvar getUrlRouterProvider = function (uiRouter) { return (uiRouter.urlRouterProvider = new UrlRouterProvider(uiRouter)); };\n// $state service and $stateProvider\n// $urlRouter service and $urlRouterProvider\nvar getStateProvider = function () { return extend(router.stateProvider, { $get: function () { return router.stateService; } }); };\nwatchDigests.$inject = ['$rootScope'];\nexport function watchDigests($rootScope) {\n    $rootScope.$watch(function () {\n        trace.approximateDigests++;\n    });\n}\nmod_init.provider('$uiRouter', $uiRouterProvider);\nmod_rtr.provider('$urlRouter', ['$uiRouterProvider', getUrlRouterProvider]);\nmod_util.provider('$urlService', getProviderFor('urlService'));\nmod_util.provider('$urlMatcherFactory', ['$uiRouterProvider', function () { return router.urlMatcherFactory; }]);\nmod_util.provider('$templateFactory', function () { return new TemplateFactory(); });\nmod_state.provider('$stateRegistry', getProviderFor('stateRegistry'));\nmod_state.provider('$uiRouterGlobals', getProviderFor('globals'));\nmod_state.provider('$transitions', getProviderFor('transitionService'));\nmod_state.provider('$state', ['$uiRouterProvider', getStateProvider]);\nmod_state.factory('$stateParams', ['$uiRouter', function ($uiRouter) { return $uiRouter.globals.params; }]);\nmod_main.factory('$view', function () { return router.viewService; });\nmod_main.service('$trace', function () { return trace; });\nmod_main.run(watchDigests);\nmod_util.run(['$urlMatcherFactory', function ($urlMatcherFactory) { }]);\nmod_state.run(['$state', function ($state) { }]);\nmod_rtr.run(['$urlRouter', function ($urlRouter) { }]);\nmod_init.run(runBlock);\n/** @hidden TODO: find a place to move this */\nexport var getLocals = function (ctx) {\n    var tokens = ctx.getTokens().filter(isString);\n    var tuples = tokens.map(function (key) {\n        var resolvable = ctx.getResolvable(key);\n        var waitPolicy = ctx.getPolicy(resolvable).async;\n        return [key, waitPolicy === 'NOWAIT' ? resolvable.promise : resolvable.data];\n    });\n    return tuples.reduce(applyPairs, {});\n};\n","/* eslint-disable @typescript-eslint/no-empty-interface */\n/* eslint-disable prefer-const */\n/**\n * # Angular 1 Directives\n *\n * These are the directives included in UI-Router for Angular 1.\n * These directives are used in templates to create viewports and link/navigate to states.\n *\n * @preferred @publicapi @module directives\n */ /** */\nimport { ng as angular } from '../angular';\nimport { extend, forEach, tail, isString, isObject, isArray, parse, noop, unnestR, identity, uniqR, inArray, removeFrom, } from '@uirouter/core';\n/** @hidden */\nfunction parseStateRef(ref) {\n    var paramsOnly = ref.match(/^\\s*({[^}]*})\\s*$/);\n    if (paramsOnly)\n        ref = '(' + paramsOnly[1] + ')';\n    var parsed = ref.replace(/\\n/g, ' ').match(/^\\s*([^(]*?)\\s*(\\((.*)\\))?\\s*$/);\n    if (!parsed || parsed.length !== 4)\n        throw new Error(\"Invalid state ref '\" + ref + \"'\");\n    return { state: parsed[1] || null, paramExpr: parsed[3] || null };\n}\n/** @hidden */\nfunction stateContext(el) {\n    var $uiView = el.parent().inheritedData('$uiView');\n    var path = parse('$cfg.path')($uiView);\n    return path ? tail(path).state.name : undefined;\n}\n/** @hidden */\nfunction processedDef($state, $element, def) {\n    var uiState = def.uiState || $state.current.name;\n    var uiStateOpts = extend(defaultOpts($element, $state), def.uiStateOpts || {});\n    var href = $state.href(uiState, def.uiStateParams, uiStateOpts);\n    return { uiState: uiState, uiStateParams: def.uiStateParams, uiStateOpts: uiStateOpts, href: href };\n}\n/** @hidden */\nfunction getTypeInfo(el) {\n    // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.\n    var isSvg = Object.prototype.toString.call(el.prop('href')) === '[object SVGAnimatedString]';\n    var isForm = el[0].nodeName === 'FORM';\n    return {\n        attr: isForm ? 'action' : isSvg ? 'xlink:href' : 'href',\n        isAnchor: el.prop('tagName').toUpperCase() === 'A',\n        clickable: !isForm,\n    };\n}\n/** @hidden */\nfunction clickHook(el, $state, $timeout, type, getDef) {\n    return function (e) {\n        var button = e.which || e.button, target = getDef();\n        if (!(button > 1 || e.ctrlKey || e.metaKey || e.shiftKey || e.altKey || el.attr('target'))) {\n            // HACK: This is to allow ng-clicks to be processed before the transition is initiated:\n            var transition_1 = $timeout(function () {\n                if (!el.attr('disabled')) {\n                    $state.go(target.uiState, target.uiStateParams, target.uiStateOpts);\n                }\n            });\n            e.preventDefault();\n            // if the state has no URL, ignore one preventDefault from the <a> directive.\n            var ignorePreventDefaultCount_1 = type.isAnchor && !target.href ? 1 : 0;\n            e.preventDefault = function () {\n                if (ignorePreventDefaultCount_1-- <= 0)\n                    $timeout.cancel(transition_1);\n            };\n        }\n    };\n}\n/** @hidden */\nfunction defaultOpts(el, $state) {\n    return {\n        relative: stateContext(el) || $state.$current,\n        inherit: true,\n        source: 'sref',\n    };\n}\n/** @hidden */\nfunction bindEvents(element, scope, hookFn, uiStateOpts) {\n    var events;\n    if (uiStateOpts) {\n        events = uiStateOpts.events;\n    }\n    if (!isArray(events)) {\n        events = ['click'];\n    }\n    var on = element.on ? 'on' : 'bind';\n    for (var _i = 0, events_1 = events; _i < events_1.length; _i++) {\n        var event_1 = events_1[_i];\n        element[on](event_1, hookFn);\n    }\n    scope.$on('$destroy', function () {\n        var off = element.off ? 'off' : 'unbind';\n        for (var _i = 0, events_2 = events; _i < events_2.length; _i++) {\n            var event_2 = events_2[_i];\n            element[off](event_2, hookFn);\n        }\n    });\n}\n/**\n * `ui-sref`: A directive for linking to a state\n *\n * A directive which links to a state (and optionally, parameters).\n * When clicked, this directive activates the linked state with the supplied parameter values.\n *\n * ### Linked State\n * The attribute value of the `ui-sref` is the name of the state to link to.\n *\n * #### Example:\n * This will activate the `home` state when the link is clicked.\n * ```html\n * <a ui-sref=\"home\">Home</a>\n * ```\n *\n * ### Relative Links\n * You can also use relative state paths within `ui-sref`, just like a relative path passed to `$state.go()` ([[StateService.go]]).\n * You just need to be aware that the path is relative to the state that *created* the link.\n * This allows a state to create a relative `ui-sref` which always targets the same destination.\n *\n * #### Example:\n * Both these links are relative to the parent state, even when a child state is currently active.\n * ```html\n * <a ui-sref=\".child1\">child 1 state</a>\n * <a ui-sref=\".child2\">child 2 state</a>\n * ```\n *\n * This link activates the parent state.\n * ```html\n * <a ui-sref=\"^\">Return</a>\n * ```\n *\n * ### hrefs\n * If the linked state has a URL, the directive will automatically generate and\n * update the `href` attribute (using the [[StateService.href]]  method).\n *\n * #### Example:\n * Assuming the `users` state has a url of `/users/`\n * ```html\n * <a ui-sref=\"users\" href=\"/users/\">Users</a>\n * ```\n *\n * ### Parameter Values\n * In addition to the state name, a `ui-sref` can include parameter values which are applied when activating the state.\n * Param values can be provided in the `ui-sref` value after the state name, enclosed by parentheses.\n * The content inside the parentheses is an expression, evaluated to the parameter values.\n *\n * #### Example:\n * This example renders a list of links to users.\n * The state's `userId` parameter value comes from each user's `user.id` property.\n * ```html\n * <li ng-repeat=\"user in users\">\n *   <a ui-sref=\"users.detail({ userId: user.id })\">{{ user.displayName }}</a>\n * </li>\n * ```\n *\n * Note:\n * The parameter values expression is `$watch`ed for updates.\n *\n * ### Transition Options\n * You can specify [[TransitionOptions]] to pass to [[StateService.go]] by using the `ui-sref-opts` attribute.\n * Options are restricted to `location`, `inherit`, and `reload`.\n *\n * #### Example:\n * ```html\n * <a ui-sref=\"home\" ui-sref-opts=\"{ reload: true }\">Home</a>\n * ```\n *\n * ### Other DOM Events\n *\n * You can also customize which DOM events to respond to (instead of `click`) by\n * providing an `events` array in the `ui-sref-opts` attribute.\n *\n * #### Example:\n * ```html\n * <input type=\"text\" ui-sref=\"contacts\" ui-sref-opts=\"{ events: ['change', 'blur'] }\">\n * ```\n *\n * ### Highlighting the active link\n * This directive can be used in conjunction with [[uiSrefActive]] to highlight the active link.\n *\n * ### Examples\n * If you have the following template:\n *\n * ```html\n * <a ui-sref=\"home\">Home</a>\n * <a ui-sref=\"about\">About</a>\n * <a ui-sref=\"{page: 2}\">Next page</a>\n *\n * <ul>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a ui-sref=\"contacts.detail({ id: contact.id })\">{{ contact.name }}</a>\n *     </li>\n * </ul>\n * ```\n *\n * Then (assuming the current state is `contacts`) the rendered html including hrefs would be:\n *\n * ```html\n * <a href=\"#/home\" ui-sref=\"home\">Home</a>\n * <a href=\"#/about\" ui-sref=\"about\">About</a>\n * <a href=\"#/contacts?page=2\" ui-sref=\"{page: 2}\">Next page</a>\n *\n * <ul>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a href=\"#/contacts/1\" ui-sref=\"contacts.detail({ id: contact.id })\">Joe</a>\n *     </li>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a href=\"#/contacts/2\" ui-sref=\"contacts.detail({ id: contact.id })\">Alice</a>\n *     </li>\n *     <li ng-repeat=\"contact in contacts\">\n *         <a href=\"#/contacts/3\" ui-sref=\"contacts.detail({ id: contact.id })\">Bob</a>\n *     </li>\n * </ul>\n *\n * <a href=\"#/home\" ui-sref=\"home\" ui-sref-opts=\"{reload: true}\">Home</a>\n * ```\n *\n * ### Notes\n *\n * - You can use `ui-sref` to change **only the parameter values** by omitting the state name and parentheses.\n * #### Example:\n * Sets the `lang` parameter to `en` and remains on the same state.\n *\n * ```html\n * <a ui-sref=\"{ lang: 'en' }\">English</a>\n * ```\n *\n * - A middle-click, right-click, or ctrl-click is handled (natively) by the browser to open the href in a new window, for example.\n *\n * - Unlike the parameter values expression, the state name is not `$watch`ed (for performance reasons).\n * If you need to dynamically update the state being linked to, use the fully dynamic [[uiState]] directive.\n */\nvar uiSrefDirective;\nuiSrefDirective = [\n    '$uiRouter',\n    '$timeout',\n    function $StateRefDirective($uiRouter, $timeout) {\n        var $state = $uiRouter.stateService;\n        return {\n            restrict: 'A',\n            require: ['?^uiSrefActive', '?^uiSrefActiveEq'],\n            link: function (scope, element, attrs, uiSrefActive) {\n                var type = getTypeInfo(element);\n                var active = uiSrefActive[1] || uiSrefActive[0];\n                var unlinkInfoFn = null;\n                var rawDef = {};\n                var getDef = function () { return processedDef($state, element, rawDef); };\n                var ref = parseStateRef(attrs.uiSref);\n                rawDef.uiState = ref.state;\n                rawDef.uiStateOpts = attrs.uiSrefOpts ? scope.$eval(attrs.uiSrefOpts) : {};\n                function update() {\n                    var def = getDef();\n                    if (unlinkInfoFn)\n                        unlinkInfoFn();\n                    if (active)\n                        unlinkInfoFn = active.$$addStateInfo(def.uiState, def.uiStateParams);\n                    if (def.href != null)\n                        attrs.$set(type.attr, def.href);\n                }\n                if (ref.paramExpr) {\n                    scope.$watch(ref.paramExpr, function (val) {\n                        rawDef.uiStateParams = extend({}, val);\n                        update();\n                    }, true);\n                    rawDef.uiStateParams = extend({}, scope.$eval(ref.paramExpr));\n                }\n                update();\n                scope.$on('$destroy', $uiRouter.stateRegistry.onStatesChanged(update));\n                scope.$on('$destroy', $uiRouter.transitionService.onSuccess({}, update));\n                if (!type.clickable)\n                    return;\n                var hookFn = clickHook(element, $state, $timeout, type, getDef);\n                bindEvents(element, scope, hookFn, rawDef.uiStateOpts);\n            },\n        };\n    },\n];\n/**\n * `ui-state`: A fully dynamic directive for linking to a state\n *\n * A directive which links to a state (and optionally, parameters).\n * When clicked, this directive activates the linked state with the supplied parameter values.\n *\n * **This directive is very similar to [[uiSref]], but it `$observe`s and `$watch`es/evaluates all its inputs.**\n *\n * A directive which links to a state (and optionally, parameters).\n * When clicked, this directive activates the linked state with the supplied parameter values.\n *\n * ### Linked State\n * The attribute value of `ui-state` is an expression which is `$watch`ed and evaluated as the state to link to.\n * **This is in contrast with `ui-sref`, which takes a state name as a string literal.**\n *\n * #### Example:\n * Create a list of links.\n * ```html\n * <li ng-repeat=\"link in navlinks\">\n *   <a ui-state=\"link.state\">{{ link.displayName }}</a>\n * </li>\n * ```\n *\n * ### Relative Links\n * If the expression evaluates to a relative path, it is processed like [[uiSref]].\n * You just need to be aware that the path is relative to the state that *created* the link.\n * This allows a state to create relative `ui-state` which always targets the same destination.\n *\n * ### hrefs\n * If the linked state has a URL, the directive will automatically generate and\n * update the `href` attribute (using the [[StateService.href]]  method).\n *\n * ### Parameter Values\n * In addition to the state name expression, a `ui-state` can include parameter values which are applied when activating the state.\n * Param values should be provided using the `ui-state-params` attribute.\n * The `ui-state-params` attribute value is `$watch`ed and evaluated as an expression.\n *\n * #### Example:\n * This example renders a list of links with param values.\n * The state's `userId` parameter value comes from each user's `user.id` property.\n * ```html\n * <li ng-repeat=\"link in navlinks\">\n *   <a ui-state=\"link.state\" ui-state-params=\"link.params\">{{ link.displayName }}</a>\n * </li>\n * ```\n *\n * ### Transition Options\n * You can specify [[TransitionOptions]] to pass to [[StateService.go]] by using the `ui-state-opts` attribute.\n * Options are restricted to `location`, `inherit`, and `reload`.\n * The value of the `ui-state-opts` is `$watch`ed and evaluated as an expression.\n *\n * #### Example:\n * ```html\n * <a ui-state=\"returnto.state\" ui-state-opts=\"{ reload: true }\">Home</a>\n * ```\n *\n * ### Other DOM Events\n *\n * You can also customize which DOM events to respond to (instead of `click`) by\n * providing an `events` array in the `ui-state-opts` attribute.\n *\n * #### Example:\n * ```html\n * <input type=\"text\" ui-state=\"contacts\" ui-state-opts=\"{ events: ['change', 'blur'] }\">\n * ```\n *\n * ### Highlighting the active link\n * This directive can be used in conjunction with [[uiSrefActive]] to highlight the active link.\n *\n * ### Notes\n *\n * - You can use `ui-params` to change **only the parameter values** by omitting the state name and supplying only `ui-state-params`.\n *   However, it might be simpler to use [[uiSref]] parameter-only links.\n *\n * #### Example:\n * Sets the `lang` parameter to `en` and remains on the same state.\n *\n * ```html\n * <a ui-state=\"\" ui-state-params=\"{ lang: 'en' }\">English</a>\n * ```\n *\n * - A middle-click, right-click, or ctrl-click is handled (natively) by the browser to open the href in a new window, for example.\n * ```\n */\nvar uiStateDirective;\nuiStateDirective = [\n    '$uiRouter',\n    '$timeout',\n    function $StateRefDynamicDirective($uiRouter, $timeout) {\n        var $state = $uiRouter.stateService;\n        return {\n            restrict: 'A',\n            require: ['?^uiSrefActive', '?^uiSrefActiveEq'],\n            link: function (scope, element, attrs, uiSrefActive) {\n                var type = getTypeInfo(element);\n                var active = uiSrefActive[1] || uiSrefActive[0];\n                var unlinkInfoFn = null;\n                var hookFn;\n                var rawDef = {};\n                var getDef = function () { return processedDef($state, element, rawDef); };\n                var inputAttrs = ['uiState', 'uiStateParams', 'uiStateOpts'];\n                var watchDeregFns = inputAttrs.reduce(function (acc, attr) { return ((acc[attr] = noop), acc); }, {});\n                function update() {\n                    var def = getDef();\n                    if (unlinkInfoFn)\n                        unlinkInfoFn();\n                    if (active)\n                        unlinkInfoFn = active.$$addStateInfo(def.uiState, def.uiStateParams);\n                    if (def.href != null)\n                        attrs.$set(type.attr, def.href);\n                }\n                inputAttrs.forEach(function (field) {\n                    rawDef[field] = attrs[field] ? scope.$eval(attrs[field]) : null;\n                    attrs.$observe(field, function (expr) {\n                        watchDeregFns[field]();\n                        watchDeregFns[field] = scope.$watch(expr, function (newval) {\n                            rawDef[field] = newval;\n                            update();\n                        }, true);\n                    });\n                });\n                update();\n                scope.$on('$destroy', $uiRouter.stateRegistry.onStatesChanged(update));\n                scope.$on('$destroy', $uiRouter.transitionService.onSuccess({}, update));\n                if (!type.clickable)\n                    return;\n                hookFn = clickHook(element, $state, $timeout, type, getDef);\n                bindEvents(element, scope, hookFn, rawDef.uiStateOpts);\n            },\n        };\n    },\n];\n/**\n * `ui-sref-active` and `ui-sref-active-eq`: A directive that adds a CSS class when a `ui-sref` is active\n *\n * A directive working alongside [[uiSref]] and [[uiState]] to add classes to an element when the\n * related directive's state is active (and remove them when it is inactive).\n *\n * The primary use-case is to highlight the active link in navigation menus,\n * distinguishing it from the inactive menu items.\n *\n * ### Linking to a `ui-sref` or `ui-state`\n * `ui-sref-active` can live on the same element as `ui-sref`/`ui-state`, or it can be on a parent element.\n * If a `ui-sref-active` is a parent to more than one `ui-sref`/`ui-state`, it will apply the CSS class when **any of the links are active**.\n *\n * ### Matching\n *\n * The `ui-sref-active` directive applies the CSS class when the `ui-sref`/`ui-state`'s target state **or any child state is active**.\n * This is a \"fuzzy match\" which uses [[StateService.includes]].\n *\n * The `ui-sref-active-eq` directive applies the CSS class when the `ui-sref`/`ui-state`'s target state is directly active (not when child states are active).\n * This is an \"exact match\" which uses [[StateService.is]].\n *\n * ### Parameter values\n * If the `ui-sref`/`ui-state` includes parameter values, the current parameter values must match the link's values for the link to be highlighted.\n * This allows a list of links to the same state with different parameters to be rendered, and the correct one highlighted.\n *\n * #### Example:\n * ```html\n * <li ng-repeat=\"user in users\" ui-sref-active=\"active\">\n *   <a ui-sref=\"user.details({ userId: user.id })\">{{ user.lastName }}</a>\n * </li>\n * ```\n *\n * ### Examples\n *\n * Given the following template:\n * #### Example:\n * ```html\n * <ul>\n *   <li ui-sref-active=\"active\" class=\"item\">\n *     <a href ui-sref=\"app.user({user: 'bilbobaggins'})\">@bilbobaggins</a>\n *   </li>\n * </ul>\n * ```\n *\n * When the app state is `app.user` (or any child state),\n * and contains the state parameter \"user\" with value \"bilbobaggins\",\n * the resulting HTML will appear as (note the 'active' class):\n *\n * ```html\n * <ul>\n *   <li ui-sref-active=\"active\" class=\"item active\">\n *     <a ui-sref=\"app.user({user: 'bilbobaggins'})\" href=\"/users/bilbobaggins\">@bilbobaggins</a>\n *   </li>\n * </ul>\n * ```\n *\n * ### Glob mode\n *\n * It is possible to pass `ui-sref-active` an expression that evaluates to an object.\n * The objects keys represent active class names and values represent the respective state names/globs.\n * `ui-sref-active` will match if the current active state **includes** any of\n * the specified state names/globs, even the abstract ones.\n *\n * #### Example:\n * Given the following template, with \"admin\" being an abstract state:\n * ```html\n * <div ui-sref-active=\"{'active': 'admin.**'}\">\n *   <a ui-sref-active=\"active\" ui-sref=\"admin.roles\">Roles</a>\n * </div>\n * ```\n *\n * Arrays are also supported as values in the `ngClass`-like interface.\n * This allows multiple states to add `active` class.\n *\n * #### Example:\n * Given the following template, with \"admin.roles\" being the current state, the class will be added too:\n * ```html\n * <div ui-sref-active=\"{'active': ['owner.**', 'admin.**']}\">\n *   <a ui-sref-active=\"active\" ui-sref=\"admin.roles\">Roles</a>\n * </div>\n * ```\n *\n * When the current state is \"admin.roles\" the \"active\" class will be applied to both the `<div>` and `<a>` elements.\n * It is important to note that the state names/globs passed to `ui-sref-active` override any state provided by a linked `ui-sref`.\n *\n * ### Notes:\n *\n * - The class name is interpolated **once** during the directives link time (any further changes to the\n * interpolated value are ignored).\n *\n * - Multiple classes may be specified in a space-separated format: `ui-sref-active='class1 class2 class3'`\n */\nvar uiSrefActiveDirective;\nuiSrefActiveDirective = [\n    '$state',\n    '$stateParams',\n    '$interpolate',\n    '$uiRouter',\n    function $StateRefActiveDirective($state, $stateParams, $interpolate, $uiRouter) {\n        return {\n            restrict: 'A',\n            controller: [\n                '$scope',\n                '$element',\n                '$attrs',\n                function ($scope, $element, $attrs) {\n                    var states = [];\n                    var activeEqClass;\n                    var uiSrefActive;\n                    // There probably isn't much point in $observing this\n                    // uiSrefActive and uiSrefActiveEq share the same directive object with some\n                    // slight difference in logic routing\n                    activeEqClass = $interpolate($attrs.uiSrefActiveEq || '', false)($scope);\n                    try {\n                        uiSrefActive = $scope.$eval($attrs.uiSrefActive);\n                    }\n                    catch (e) {\n                        // Do nothing. uiSrefActive is not a valid expression.\n                        // Fall back to using $interpolate below\n                    }\n                    uiSrefActive = uiSrefActive || $interpolate($attrs.uiSrefActive || '', false)($scope);\n                    setStatesFromDefinitionObject(uiSrefActive);\n                    // Allow uiSref to communicate with uiSrefActive[Equals]\n                    this.$$addStateInfo = function (newState, newParams) {\n                        // we already got an explicit state provided by ui-sref-active, so we\n                        // shadow the one that comes from ui-sref\n                        if (isObject(uiSrefActive) && states.length > 0) {\n                            return;\n                        }\n                        var deregister = addState(newState, newParams, uiSrefActive);\n                        update();\n                        return deregister;\n                    };\n                    function updateAfterTransition(trans) {\n                        trans.promise.then(update, noop);\n                    }\n                    $scope.$on('$destroy', setupEventListeners());\n                    if ($uiRouter.globals.transition) {\n                        updateAfterTransition($uiRouter.globals.transition);\n                    }\n                    function setupEventListeners() {\n                        var deregisterStatesChangedListener = $uiRouter.stateRegistry.onStatesChanged(handleStatesChanged);\n                        var deregisterOnStartListener = $uiRouter.transitionService.onStart({}, updateAfterTransition);\n                        var deregisterStateChangeSuccessListener = $scope.$on('$stateChangeSuccess', update);\n                        return function cleanUp() {\n                            deregisterStatesChangedListener();\n                            deregisterOnStartListener();\n                            deregisterStateChangeSuccessListener();\n                        };\n                    }\n                    function handleStatesChanged() {\n                        setStatesFromDefinitionObject(uiSrefActive);\n                    }\n                    function setStatesFromDefinitionObject(statesDefinition) {\n                        if (isObject(statesDefinition)) {\n                            states = [];\n                            forEach(statesDefinition, function (stateOrName, activeClass) {\n                                // Helper function to abstract adding state.\n                                var addStateForClass = function (stateOrName, activeClass) {\n                                    var ref = parseStateRef(stateOrName);\n                                    addState(ref.state, $scope.$eval(ref.paramExpr), activeClass);\n                                };\n                                if (isString(stateOrName)) {\n                                    // If state is string, just add it.\n                                    addStateForClass(stateOrName, activeClass);\n                                }\n                                else if (isArray(stateOrName)) {\n                                    // If state is an array, iterate over it and add each array item individually.\n                                    forEach(stateOrName, function (stateOrName) {\n                                        addStateForClass(stateOrName, activeClass);\n                                    });\n                                }\n                            });\n                        }\n                    }\n                    function addState(stateName, stateParams, activeClass) {\n                        var state = $state.get(stateName, stateContext($element));\n                        var stateInfo = {\n                            state: state || { name: stateName },\n                            params: stateParams,\n                            activeClass: activeClass,\n                        };\n                        states.push(stateInfo);\n                        return function removeState() {\n                            removeFrom(states)(stateInfo);\n                        };\n                    }\n                    // Update route state\n                    function update() {\n                        var splitClasses = function (str) { return str.split(/\\s/).filter(identity); };\n                        var getClasses = function (stateList) {\n                            return stateList\n                                .map(function (x) { return x.activeClass; })\n                                .map(splitClasses)\n                                .reduce(unnestR, []);\n                        };\n                        var allClasses = getClasses(states).concat(splitClasses(activeEqClass)).reduce(uniqR, []);\n                        var fuzzyClasses = getClasses(states.filter(function (x) { return $state.includes(x.state.name, x.params); }));\n                        var exactlyMatchesAny = !!states.filter(function (x) { return $state.is(x.state.name, x.params); }).length;\n                        var exactClasses = exactlyMatchesAny ? splitClasses(activeEqClass) : [];\n                        var addClasses = fuzzyClasses.concat(exactClasses).reduce(uniqR, []);\n                        var removeClasses = allClasses.filter(function (cls) { return !inArray(addClasses, cls); });\n                        $scope.$evalAsync(function () {\n                            addClasses.forEach(function (className) { return $element.addClass(className); });\n                            removeClasses.forEach(function (className) { return $element.removeClass(className); });\n                        });\n                    }\n                    update();\n                },\n            ],\n        };\n    },\n];\nangular\n    .module('ui.router.state')\n    .directive('uiSref', uiSrefDirective)\n    .directive('uiSrefActive', uiSrefActiveDirective)\n    .directive('uiSrefActiveEq', uiSrefActiveDirective)\n    .directive('uiState', uiStateDirective);\n","/** @publicapi @module directives */ /** */\nimport { extend, filter, isDefined, isFunction, isString, kebobString, noop, parse, ResolveContext, tail, trace, unnestR, } from '@uirouter/core';\nimport { ng as angular } from '../angular';\nimport { getLocals } from '../services';\nimport { Ng1ViewConfig } from '../statebuilders/views';\n/**\n * `ui-view`: A viewport directive which is filled in by a view from the active state.\n *\n * ### Attributes\n *\n * - `name`: (Optional) A view name.\n *   The name should be unique amongst the other views in the same state.\n *   You can have views of the same name that live in different states.\n *   The ui-view can be targeted in a View using the name ([[Ng1StateDeclaration.views]]).\n *\n * - `autoscroll`: an expression. When it evaluates to true, the `ui-view` will be scrolled into view when it is activated.\n *   Uses [[$uiViewScroll]] to do the scrolling.\n *\n * - `onload`: Expression to evaluate whenever the view updates.\n *\n * #### Example:\n * A view can be unnamed or named.\n * ```html\n * <!-- Unnamed -->\n * <div ui-view></div>\n *\n * <!-- Named -->\n * <div ui-view=\"viewName\"></div>\n *\n * <!-- Named (different style) -->\n * <ui-view name=\"viewName\"></ui-view>\n * ```\n *\n * You can only have one unnamed view within any template (or root html). If you are only using a\n * single view and it is unnamed then you can populate it like so:\n *\n * ```html\n * <div ui-view></div>\n * $stateProvider.state(\"home\", {\n *   template: \"<h1>HELLO!</h1>\"\n * })\n * ```\n *\n * The above is a convenient shortcut equivalent to specifying your view explicitly with the\n * [[Ng1StateDeclaration.views]] config property, by name, in this case an empty name:\n *\n * ```js\n * $stateProvider.state(\"home\", {\n *   views: {\n *     \"\": {\n *       template: \"<h1>HELLO!</h1>\"\n *     }\n *   }\n * })\n * ```\n *\n * But typically you'll only use the views property if you name your view or have more than one view\n * in the same template. There's not really a compelling reason to name a view if its the only one,\n * but you could if you wanted, like so:\n *\n * ```html\n * <div ui-view=\"main\"></div>\n * ```\n *\n * ```js\n * $stateProvider.state(\"home\", {\n *   views: {\n *     \"main\": {\n *       template: \"<h1>HELLO!</h1>\"\n *     }\n *   }\n * })\n * ```\n *\n * Really though, you'll use views to set up multiple views:\n *\n * ```html\n * <div ui-view></div>\n * <div ui-view=\"chart\"></div>\n * <div ui-view=\"data\"></div>\n * ```\n *\n * ```js\n * $stateProvider.state(\"home\", {\n *   views: {\n *     \"\": {\n *       template: \"<h1>HELLO!</h1>\"\n *     },\n *     \"chart\": {\n *       template: \"<chart_thing/>\"\n *     },\n *     \"data\": {\n *       template: \"<data_thing/>\"\n *     }\n *   }\n * })\n * ```\n *\n * #### Examples for `autoscroll`:\n * ```html\n * <!-- If autoscroll present with no expression,\n *      then scroll ui-view into view -->\n * <ui-view autoscroll/>\n *\n * <!-- If autoscroll present with valid expression,\n *      then scroll ui-view into view if expression evaluates to true -->\n * <ui-view autoscroll='true'/>\n * <ui-view autoscroll='false'/>\n * <ui-view autoscroll='scopeVariable'/>\n * ```\n *\n * Resolve data:\n *\n * The resolved data from the state's `resolve` block is placed on the scope as `$resolve` (this\n * can be customized using [[Ng1ViewDeclaration.resolveAs]]).  This can be then accessed from the template.\n *\n * Note that when `controllerAs` is being used, `$resolve` is set on the controller instance *after* the\n * controller is instantiated.  The `$onInit()` hook can be used to perform initialization code which\n * depends on `$resolve` data.\n *\n * #### Example:\n * ```js\n * $stateProvider.state('home', {\n *   template: '<my-component user=\"$resolve.user\"></my-component>',\n *   resolve: {\n *     user: function(UserService) { return UserService.fetchUser(); }\n *   }\n * });\n * ```\n */\nexport var uiView;\n// eslint-disable-next-line prefer-const\nuiView = [\n    '$view',\n    '$animate',\n    '$uiViewScroll',\n    '$interpolate',\n    '$q',\n    function $ViewDirective($view, $animate, $uiViewScroll, $interpolate, $q) {\n        function getRenderer() {\n            return {\n                enter: function (element, target, cb) {\n                    if (angular.version.minor > 2) {\n                        $animate.enter(element, null, target).then(cb);\n                    }\n                    else {\n                        $animate.enter(element, null, target, cb);\n                    }\n                },\n                leave: function (element, cb) {\n                    if (angular.version.minor > 2) {\n                        $animate.leave(element).then(cb);\n                    }\n                    else {\n                        $animate.leave(element, cb);\n                    }\n                },\n            };\n        }\n        function configsEqual(config1, config2) {\n            return config1 === config2;\n        }\n        var rootData = {\n            $cfg: { viewDecl: { $context: $view._pluginapi._rootViewContext() } },\n            $uiView: {},\n        };\n        var directive = {\n            count: 0,\n            restrict: 'ECA',\n            terminal: true,\n            priority: 400,\n            transclude: 'element',\n            compile: function (tElement, tAttrs, $transclude) {\n                return function (scope, $element, attrs) {\n                    var onloadExp = attrs['onload'] || '', autoScrollExp = attrs['autoscroll'], renderer = getRenderer(), inherited = $element.inheritedData('$uiView') || rootData, name = $interpolate(attrs['uiView'] || attrs['name'] || '')(scope) || '$default';\n                    var previousEl, currentEl, currentScope, viewConfig;\n                    var activeUIView = {\n                        $type: 'ng1',\n                        id: directive.count++,\n                        name: name,\n                        fqn: inherited.$uiView.fqn ? inherited.$uiView.fqn + '.' + name : name,\n                        config: null,\n                        configUpdated: configUpdatedCallback,\n                        get creationContext() {\n                            // The context in which this ui-view \"tag\" was created\n                            var fromParentTagConfig = parse('$cfg.viewDecl.$context')(inherited);\n                            // Allow <ui-view name=\"foo\"><ui-view name=\"bar\"></ui-view></ui-view>\n                            // See https://github.com/angular-ui/ui-router/issues/3355\n                            var fromParentTag = parse('$uiView.creationContext')(inherited);\n                            return fromParentTagConfig || fromParentTag;\n                        },\n                    };\n                    trace.traceUIViewEvent('Linking', activeUIView);\n                    function configUpdatedCallback(config) {\n                        if (config && !(config instanceof Ng1ViewConfig))\n                            return;\n                        if (configsEqual(viewConfig, config))\n                            return;\n                        trace.traceUIViewConfigUpdated(activeUIView, config && config.viewDecl && config.viewDecl.$context);\n                        viewConfig = config;\n                        updateView(config);\n                    }\n                    $element.data('$uiView', { $uiView: activeUIView });\n                    updateView();\n                    var unregister = $view.registerUIView(activeUIView);\n                    scope.$on('$destroy', function () {\n                        trace.traceUIViewEvent('Destroying/Unregistering', activeUIView);\n                        unregister();\n                    });\n                    function cleanupLastView() {\n                        if (previousEl) {\n                            trace.traceUIViewEvent('Removing (previous) el', previousEl.data('$uiView'));\n                            previousEl.remove();\n                            previousEl = null;\n                        }\n                        if (currentScope) {\n                            trace.traceUIViewEvent('Destroying scope', activeUIView);\n                            currentScope.$destroy();\n                            currentScope = null;\n                        }\n                        if (currentEl) {\n                            var _viewData_1 = currentEl.data('$uiViewAnim');\n                            trace.traceUIViewEvent('Animate out', _viewData_1);\n                            renderer.leave(currentEl, function () {\n                                _viewData_1.$$animLeave.resolve();\n                                previousEl = null;\n                            });\n                            previousEl = currentEl;\n                            currentEl = null;\n                        }\n                    }\n                    function updateView(config) {\n                        var newScope = scope.$new();\n                        var animEnter = $q.defer(), animLeave = $q.defer();\n                        var $uiViewData = {\n                            $cfg: config,\n                            $uiView: activeUIView,\n                        };\n                        var $uiViewAnim = {\n                            $animEnter: animEnter.promise,\n                            $animLeave: animLeave.promise,\n                            $$animLeave: animLeave,\n                        };\n                        /**\n                         * @ngdoc event\n                         * @name ui.router.state.directive:ui-view#$viewContentLoading\n                         * @eventOf ui.router.state.directive:ui-view\n                         * @eventType emits on ui-view directive scope\n                         * @description\n                         *\n                         * Fired once the view **begins loading**, *before* the DOM is rendered.\n                         *\n                         * @param {Object} event Event object.\n                         * @param {string} viewName Name of the view.\n                         */\n                        newScope.$emit('$viewContentLoading', name);\n                        var cloned = $transclude(newScope, function (clone) {\n                            clone.data('$uiViewAnim', $uiViewAnim);\n                            clone.data('$uiView', $uiViewData);\n                            renderer.enter(clone, $element, function onUIViewEnter() {\n                                animEnter.resolve();\n                                if (currentScope)\n                                    currentScope.$emit('$viewContentAnimationEnded');\n                                if ((isDefined(autoScrollExp) && !autoScrollExp) || scope.$eval(autoScrollExp)) {\n                                    $uiViewScroll(clone);\n                                }\n                            });\n                            cleanupLastView();\n                        });\n                        currentEl = cloned;\n                        currentScope = newScope;\n                        /**\n                         * @ngdoc event\n                         * @name ui.router.state.directive:ui-view#$viewContentLoaded\n                         * @eventOf ui.router.state.directive:ui-view\n                         * @eventType emits on ui-view directive scope\n                         * @description           *\n                         * Fired once the view is **loaded**, *after* the DOM is rendered.\n                         *\n                         * @param {Object} event Event object.\n                         */\n                        currentScope.$emit('$viewContentLoaded', config || viewConfig);\n                        currentScope.$eval(onloadExp);\n                    }\n                };\n            },\n        };\n        return directive;\n    },\n];\n$ViewDirectiveFill.$inject = ['$compile', '$controller', '$transitions', '$view', '$q'];\n/** @hidden */\nfunction $ViewDirectiveFill($compile, $controller, $transitions, $view, $q) {\n    var getControllerAs = parse('viewDecl.controllerAs');\n    var getResolveAs = parse('viewDecl.resolveAs');\n    return {\n        restrict: 'ECA',\n        priority: -400,\n        compile: function (tElement) {\n            var initial = tElement.html();\n            tElement.empty();\n            return function (scope, $element) {\n                var data = $element.data('$uiView');\n                if (!data) {\n                    $element.html(initial);\n                    $compile($element.contents())(scope);\n                    return;\n                }\n                var cfg = data.$cfg || { viewDecl: {}, getTemplate: noop };\n                var resolveCtx = cfg.path && new ResolveContext(cfg.path);\n                $element.html(cfg.getTemplate($element, resolveCtx) || initial);\n                trace.traceUIViewFill(data.$uiView, $element.html());\n                var link = $compile($element.contents());\n                var controller = cfg.controller;\n                var controllerAs = getControllerAs(cfg);\n                var resolveAs = getResolveAs(cfg);\n                var locals = resolveCtx && getLocals(resolveCtx);\n                scope[resolveAs] = locals;\n                if (controller) {\n                    var controllerInstance = ($controller(controller, extend({}, locals, { $scope: scope, $element: $element })));\n                    if (controllerAs) {\n                        scope[controllerAs] = controllerInstance;\n                        scope[controllerAs][resolveAs] = locals;\n                    }\n                    // TODO: Use $view service as a central point for registering component-level hooks\n                    // Then, when a component is created, tell the $view service, so it can invoke hooks\n                    // $view.componentLoaded(controllerInstance, { $scope: scope, $element: $element });\n                    // scope.$on('$destroy', () => $view.componentUnloaded(controllerInstance, { $scope: scope, $element: $element }));\n                    $element.data('$ngControllerController', controllerInstance);\n                    $element.children().data('$ngControllerController', controllerInstance);\n                    registerControllerCallbacks($q, $transitions, controllerInstance, scope, cfg);\n                }\n                // Wait for the component to appear in the DOM\n                if (isString(cfg.component)) {\n                    var kebobName = kebobString(cfg.component);\n                    var tagRegexp_1 = new RegExp(\"^(x-|data-)?\" + kebobName + \"$\", 'i');\n                    var getComponentController = function () {\n                        var directiveEl = [].slice\n                            .call($element[0].children)\n                            .filter(function (el) { return el && el.tagName && tagRegexp_1.exec(el.tagName); });\n                        return directiveEl && angular.element(directiveEl).data(\"$\" + cfg.component + \"Controller\");\n                    };\n                    var deregisterWatch_1 = scope.$watch(getComponentController, function (ctrlInstance) {\n                        if (!ctrlInstance)\n                            return;\n                        registerControllerCallbacks($q, $transitions, ctrlInstance, scope, cfg);\n                        deregisterWatch_1();\n                    });\n                }\n                link(scope);\n            };\n        },\n    };\n}\n/** @hidden */\nvar hasComponentImpl = typeof angular.module('ui.router')['component'] === 'function';\n/** @hidden incrementing id */\nvar _uiCanExitId = 0;\n/** @hidden TODO: move these callbacks to $view and/or `/hooks/components.ts` or something */\nfunction registerControllerCallbacks($q, $transitions, controllerInstance, $scope, cfg) {\n    // Call $onInit() ASAP\n    if (isFunction(controllerInstance.$onInit) &&\n        !((cfg.viewDecl.component || cfg.viewDecl.componentProvider) && hasComponentImpl)) {\n        controllerInstance.$onInit();\n    }\n    var viewState = tail(cfg.path).state.self;\n    var hookOptions = { bind: controllerInstance };\n    // Add component-level hook for onUiParamsChanged\n    if (isFunction(controllerInstance.uiOnParamsChanged)) {\n        var resolveContext = new ResolveContext(cfg.path);\n        var viewCreationTrans_1 = resolveContext.getResolvable('$transition$').data;\n        // Fire callback on any successful transition\n        var paramsUpdated = function ($transition$) {\n            // Exit early if the $transition$ is the same as the view was created within.\n            // Exit early if the $transition$ will exit the state the view is for.\n            if ($transition$ === viewCreationTrans_1 || $transition$.exiting().indexOf(viewState) !== -1)\n                return;\n            var toParams = $transition$.params('to');\n            var fromParams = $transition$.params('from');\n            var getNodeSchema = function (node) { return node.paramSchema; };\n            var toSchema = $transition$.treeChanges('to').map(getNodeSchema).reduce(unnestR, []);\n            var fromSchema = $transition$.treeChanges('from').map(getNodeSchema).reduce(unnestR, []);\n            // Find the to params that have different values than the from params\n            var changedToParams = toSchema.filter(function (param) {\n                var idx = fromSchema.indexOf(param);\n                return idx === -1 || !fromSchema[idx].type.equals(toParams[param.id], fromParams[param.id]);\n            });\n            // Only trigger callback if a to param has changed or is new\n            if (changedToParams.length) {\n                var changedKeys_1 = changedToParams.map(function (x) { return x.id; });\n                // Filter the params to only changed/new to params.  `$transition$.params()` may be used to get all params.\n                var newValues = filter(toParams, function (val, key) { return changedKeys_1.indexOf(key) !== -1; });\n                controllerInstance.uiOnParamsChanged(newValues, $transition$);\n            }\n        };\n        $scope.$on('$destroy', $transitions.onSuccess({}, paramsUpdated, hookOptions));\n    }\n    // Add component-level hook for uiCanExit\n    if (isFunction(controllerInstance.uiCanExit)) {\n        var id_1 = _uiCanExitId++;\n        var cacheProp_1 = '_uiCanExitIds';\n        // Returns true if a redirect transition already answered truthy\n        var prevTruthyAnswer_1 = function (trans) {\n            return !!trans && ((trans[cacheProp_1] && trans[cacheProp_1][id_1] === true) || prevTruthyAnswer_1(trans.redirectedFrom()));\n        };\n        // If a user answered yes, but the transition was later redirected, don't also ask for the new redirect transition\n        var wrappedHook = function (trans) {\n            var promise;\n            var ids = (trans[cacheProp_1] = trans[cacheProp_1] || {});\n            if (!prevTruthyAnswer_1(trans)) {\n                promise = $q.when(controllerInstance.uiCanExit(trans));\n                promise.then(function (val) { return (ids[id_1] = val !== false); });\n            }\n            return promise;\n        };\n        var criteria = { exiting: viewState.name };\n        $scope.$on('$destroy', $transitions.onBefore(criteria, wrappedHook, hookOptions));\n    }\n}\nangular.module('ui.router.state').directive('uiView', uiView);\nangular.module('ui.router.state').directive('uiView', $ViewDirectiveFill);\n","/** @publicapi @module ng1 */ /** */\nimport { ng as angular } from './angular';\n/**\n * `isState` Filter: truthy if the current state is the parameter\n *\n * Translates to [[StateService.is]] `$state.is(\"stateName\")`.\n *\n * #### Example:\n * ```html\n * <div ng-if=\"'stateName' | isState\">show if state is 'stateName'</div>\n * ```\n */\n$IsStateFilter.$inject = ['$state'];\nfunction $IsStateFilter($state) {\n    var isFilter = function (state, params, options) {\n        return $state.is(state, params, options);\n    };\n    isFilter.$stateful = true;\n    return isFilter;\n}\n/**\n * `includedByState` Filter: truthy if the current state includes the parameter\n *\n * Translates to [[StateService.includes]]` $state.is(\"fullOrPartialStateName\")`.\n *\n * #### Example:\n * ```html\n * <div ng-if=\"'fullOrPartialStateName' | includedByState\">show if state includes 'fullOrPartialStateName'</div>\n * ```\n */\n$IncludedByStateFilter.$inject = ['$state'];\nfunction $IncludedByStateFilter($state) {\n    var includesFilter = function (state, params, options) {\n        return $state.includes(state, params, options);\n    };\n    includesFilter.$stateful = true;\n    return includesFilter;\n}\nangular.module('ui.router.state').filter('isState', $IsStateFilter).filter('includedByState', $IncludedByStateFilter);\nexport { $IsStateFilter, $IncludedByStateFilter };\n","/** @publicapi @module ng1 */ /** */\nimport { ng as angular } from './angular';\n/** @hidden */\nfunction $ViewScrollProvider() {\n    var useAnchorScroll = false;\n    this.useAnchorScroll = function () {\n        useAnchorScroll = true;\n    };\n    this.$get = [\n        '$anchorScroll',\n        '$timeout',\n        function ($anchorScroll, $timeout) {\n            if (useAnchorScroll) {\n                return $anchorScroll;\n            }\n            return function ($element) {\n                return $timeout(function () {\n                    $element[0].scrollIntoView();\n                }, 0, false);\n            };\n        },\n    ];\n}\nangular.module('ui.router.state').provider('$uiViewScroll', $ViewScrollProvider);\n","/**\n * Main entry point for angular 1.x build\n * @publicapi @module ng1\n */ /** */\nexport * from './interface';\nexport * from './services';\nexport * from './statebuilders/views';\nexport * from './stateProvider';\nexport * from './urlRouterProvider';\nimport './injectables';\nimport './directives/stateDirectives';\nimport './stateFilters';\nimport './directives/viewDirective';\nimport './viewScroll';\nexport default 'ui.router';\nimport * as core from '@uirouter/core';\nexport { core };\nexport * from '@uirouter/core';\n","var __spreadArrays = (this && this.__spreadArrays) || function () {\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\n            r[k] = a[j];\n    return r;\n};\n/**\n * Random utility functions used in the UI-Router code\n *\n * These functions are exported, but are subject to change without notice.\n *\n * @packageDocumentation\n * @preferred\n */\nimport { isFunction, isString, isArray, isRegExp, isDate } from './predicates';\nimport { all, any, prop, curry, not } from './hof';\nimport { services } from './coreservices';\nexport var root = (typeof self === 'object' && self.self === self && self) ||\n    (typeof global === 'object' && global.global === global && global) ||\n    this;\nvar angular = root.angular || {};\nexport var fromJson = angular.fromJson || JSON.parse.bind(JSON);\nexport var toJson = angular.toJson || JSON.stringify.bind(JSON);\nexport var forEach = angular.forEach || _forEach;\nexport var extend = Object.assign || _extend;\nexport var equals = angular.equals || _equals;\nexport function identity(x) {\n    return x;\n}\nexport function noop() { }\n/**\n * Builds proxy functions on the `to` object which pass through to the `from` object.\n *\n * For each key in `fnNames`, creates a proxy function on the `to` object.\n * The proxy function calls the real function on the `from` object.\n *\n *\n * #### Example:\n * This example creates an new class instance whose functions are prebound to the new'd object.\n * ```js\n * class Foo {\n *   constructor(data) {\n *     // Binds all functions from Foo.prototype to 'this',\n *     // then copies them to 'this'\n *     bindFunctions(Foo.prototype, this, this);\n *     this.data = data;\n *   }\n *\n *   log() {\n *     console.log(this.data);\n *   }\n * }\n *\n * let myFoo = new Foo([1,2,3]);\n * var logit = myFoo.log;\n * logit(); // logs [1, 2, 3] from the myFoo 'this' instance\n * ```\n *\n * #### Example:\n * This example creates a bound version of a service function, and copies it to another object\n * ```\n *\n * var SomeService = {\n *   this.data = [3, 4, 5];\n *   this.log = function() {\n *     console.log(this.data);\n *   }\n * }\n *\n * // Constructor fn\n * function OtherThing() {\n *   // Binds all functions from SomeService to SomeService,\n *   // then copies them to 'this'\n *   bindFunctions(SomeService, this, SomeService);\n * }\n *\n * let myOtherThing = new OtherThing();\n * myOtherThing.log(); // logs [3, 4, 5] from SomeService's 'this'\n * ```\n *\n * @param source A function that returns the source object which contains the original functions to be bound\n * @param target A function that returns the target object which will receive the bound functions\n * @param bind A function that returns the object which the functions will be bound to\n * @param fnNames The function names which will be bound (Defaults to all the functions found on the 'from' object)\n * @param latebind If true, the binding of the function is delayed until the first time it's invoked\n */\nexport function createProxyFunctions(source, target, bind, fnNames, latebind) {\n    if (latebind === void 0) { latebind = false; }\n    var bindFunction = function (fnName) { return source()[fnName].bind(bind()); };\n    var makeLateRebindFn = function (fnName) {\n        return function lateRebindFunction() {\n            target[fnName] = bindFunction(fnName);\n            return target[fnName].apply(null, arguments);\n        };\n    };\n    fnNames = fnNames || Object.keys(source());\n    return fnNames.reduce(function (acc, name) {\n        acc[name] = latebind ? makeLateRebindFn(name) : bindFunction(name);\n        return acc;\n    }, target);\n}\n/**\n * prototypal inheritance helper.\n * Creates a new object which has `parent` object as its prototype, and then copies the properties from `extra` onto it\n */\nexport var inherit = function (parent, extra) { return extend(Object.create(parent), extra); };\n/** Given an array, returns true if the object is found in the array, (using indexOf) */\nexport var inArray = curry(_inArray);\nexport function _inArray(array, obj) {\n    return array.indexOf(obj) !== -1;\n}\n/**\n * Given an array, and an item, if the item is found in the array, it removes it (in-place).\n * The same array is returned\n */\nexport var removeFrom = curry(_removeFrom);\nexport function _removeFrom(array, obj) {\n    var idx = array.indexOf(obj);\n    if (idx >= 0)\n        array.splice(idx, 1);\n    return array;\n}\n/** pushes a values to an array and returns the value */\nexport var pushTo = curry(_pushTo);\nexport function _pushTo(arr, val) {\n    return arr.push(val), val;\n}\n/** Given an array of (deregistration) functions, calls all functions and removes each one from the source array */\nexport var deregAll = function (functions) {\n    return functions.slice().forEach(function (fn) {\n        typeof fn === 'function' && fn();\n        removeFrom(functions, fn);\n    });\n};\n/**\n * Applies a set of defaults to an options object.  The options object is filtered\n * to only those properties of the objects in the defaultsList.\n * Earlier objects in the defaultsList take precedence when applying defaults.\n */\nexport function defaults(opts) {\n    var defaultsList = [];\n    for (var _i = 1; _i < arguments.length; _i++) {\n        defaultsList[_i - 1] = arguments[_i];\n    }\n    var defaultVals = extend.apply(void 0, __spreadArrays([{}], defaultsList.reverse()));\n    return extend(defaultVals, pick(opts || {}, Object.keys(defaultVals)));\n}\n/** Reduce function that merges each element of the list into a single object, using extend */\nexport var mergeR = function (memo, item) { return extend(memo, item); };\n/**\n * Finds the common ancestor path between two states.\n *\n * @param {Object} first The first state.\n * @param {Object} second The second state.\n * @return {Array} Returns an array of state names in descending order, not including the root.\n */\nexport function ancestors(first, second) {\n    var path = [];\n    // tslint:disable-next-line:forin\n    for (var n in first.path) {\n        if (first.path[n] !== second.path[n])\n            break;\n        path.push(first.path[n]);\n    }\n    return path;\n}\n/**\n * Return a copy of the object only containing the whitelisted properties.\n *\n * #### Example:\n * ```\n * var foo = { a: 1, b: 2, c: 3 };\n * var ab = pick(foo, ['a', 'b']); // { a: 1, b: 2 }\n * ```\n * @param obj the source object\n * @param propNames an Array of strings, which are the whitelisted property names\n */\nexport function pick(obj, propNames) {\n    var objCopy = {};\n    for (var _prop in obj) {\n        if (propNames.indexOf(_prop) !== -1) {\n            objCopy[_prop] = obj[_prop];\n        }\n    }\n    return objCopy;\n}\n/**\n * Return a copy of the object omitting the blacklisted properties.\n *\n * @example\n * ```\n *\n * var foo = { a: 1, b: 2, c: 3 };\n * var ab = omit(foo, ['a', 'b']); // { c: 3 }\n * ```\n * @param obj the source object\n * @param propNames an Array of strings, which are the blacklisted property names\n */\nexport function omit(obj, propNames) {\n    return Object.keys(obj)\n        .filter(not(inArray(propNames)))\n        .reduce(function (acc, key) { return ((acc[key] = obj[key]), acc); }, {});\n}\n/**\n * Maps an array, or object to a property (by name)\n */\nexport function pluck(collection, propName) {\n    return map(collection, prop(propName));\n}\n/** Filters an Array or an Object's properties based on a predicate */\nexport function filter(collection, callback) {\n    var arr = isArray(collection), result = arr ? [] : {};\n    var accept = arr ? function (x) { return result.push(x); } : function (x, key) { return (result[key] = x); };\n    forEach(collection, function (item, i) {\n        if (callback(item, i))\n            accept(item, i);\n    });\n    return result;\n}\n/** Finds an object from an array, or a property of an object, that matches a predicate */\nexport function find(collection, callback) {\n    var result;\n    forEach(collection, function (item, i) {\n        if (result)\n            return;\n        if (callback(item, i))\n            result = item;\n    });\n    return result;\n}\n/** Given an object, returns a new object, where each property is transformed by the callback function */\nexport var mapObj = map;\n/** Maps an array or object properties using a callback function */\nexport function map(collection, callback, target) {\n    target = target || (isArray(collection) ? [] : {});\n    forEach(collection, function (item, i) { return (target[i] = callback(item, i)); });\n    return target;\n}\n/**\n * Given an object, return its enumerable property values\n *\n * @example\n * ```\n *\n * let foo = { a: 1, b: 2, c: 3 }\n * let vals = values(foo); // [ 1, 2, 3 ]\n * ```\n */\nexport var values = function (obj) { return Object.keys(obj).map(function (key) { return obj[key]; }); };\n/**\n * Reduce function that returns true if all of the values are truthy.\n *\n * @example\n * ```\n *\n * let vals = [ 1, true, {}, \"hello world\"];\n * vals.reduce(allTrueR, true); // true\n *\n * vals.push(0);\n * vals.reduce(allTrueR, true); // false\n * ```\n */\nexport var allTrueR = function (memo, elem) { return memo && elem; };\n/**\n * Reduce function that returns true if any of the values are truthy.\n *\n *  * @example\n * ```\n *\n * let vals = [ 0, null, undefined ];\n * vals.reduce(anyTrueR, true); // false\n *\n * vals.push(\"hello world\");\n * vals.reduce(anyTrueR, true); // true\n * ```\n */\nexport var anyTrueR = function (memo, elem) { return memo || elem; };\n/**\n * Reduce function which un-nests a single level of arrays\n * @example\n * ```\n *\n * let input = [ [ \"a\", \"b\" ], [ \"c\", \"d\" ], [ [ \"double\", \"nested\" ] ] ];\n * input.reduce(unnestR, []) // [ \"a\", \"b\", \"c\", \"d\", [ \"double, \"nested\" ] ]\n * ```\n */\nexport var unnestR = function (memo, elem) { return memo.concat(elem); };\n/**\n * Reduce function which recursively un-nests all arrays\n *\n * @example\n * ```\n *\n * let input = [ [ \"a\", \"b\" ], [ \"c\", \"d\" ], [ [ \"double\", \"nested\" ] ] ];\n * input.reduce(unnestR, []) // [ \"a\", \"b\", \"c\", \"d\", \"double, \"nested\" ]\n * ```\n */\nexport var flattenR = function (memo, elem) {\n    return isArray(elem) ? memo.concat(elem.reduce(flattenR, [])) : pushR(memo, elem);\n};\n/**\n * Reduce function that pushes an object to an array, then returns the array.\n * Mostly just for [[flattenR]] and [[uniqR]]\n */\nexport function pushR(arr, obj) {\n    arr.push(obj);\n    return arr;\n}\n/** Reduce function that filters out duplicates */\nexport var uniqR = function (acc, token) { return (inArray(acc, token) ? acc : pushR(acc, token)); };\n/**\n * Return a new array with a single level of arrays unnested.\n *\n * @example\n * ```\n *\n * let input = [ [ \"a\", \"b\" ], [ \"c\", \"d\" ], [ [ \"double\", \"nested\" ] ] ];\n * unnest(input) // [ \"a\", \"b\", \"c\", \"d\", [ \"double, \"nested\" ] ]\n * ```\n */\nexport var unnest = function (arr) { return arr.reduce(unnestR, []); };\n/**\n * Return a completely flattened version of an array.\n *\n * @example\n * ```\n *\n * let input = [ [ \"a\", \"b\" ], [ \"c\", \"d\" ], [ [ \"double\", \"nested\" ] ] ];\n * flatten(input) // [ \"a\", \"b\", \"c\", \"d\", \"double, \"nested\" ]\n * ```\n */\nexport var flatten = function (arr) { return arr.reduce(flattenR, []); };\n/**\n * Given a .filter Predicate, builds a .filter Predicate which throws an error if any elements do not pass.\n * @example\n * ```\n *\n * let isNumber = (obj) => typeof(obj) === 'number';\n * let allNumbers = [ 1, 2, 3, 4, 5 ];\n * allNumbers.filter(assertPredicate(isNumber)); //OK\n *\n * let oneString = [ 1, 2, 3, 4, \"5\" ];\n * oneString.filter(assertPredicate(isNumber, \"Not all numbers\")); // throws Error(\"\"Not all numbers\"\");\n * ```\n */\nexport var assertPredicate = assertFn;\n/**\n * Given a .map function, builds a .map function which throws an error if any mapped elements do not pass a truthyness test.\n * @example\n * ```\n *\n * var data = { foo: 1, bar: 2 };\n *\n * let keys = [ 'foo', 'bar' ]\n * let values = keys.map(assertMap(key => data[key], \"Key not found\"));\n * // values is [1, 2]\n *\n * let keys = [ 'foo', 'bar', 'baz' ]\n * let values = keys.map(assertMap(key => data[key], \"Key not found\"));\n * // throws Error(\"Key not found\")\n * ```\n */\nexport var assertMap = assertFn;\nexport function assertFn(predicateOrMap, errMsg) {\n    if (errMsg === void 0) { errMsg = 'assert failure'; }\n    return function (obj) {\n        var result = predicateOrMap(obj);\n        if (!result) {\n            throw new Error(isFunction(errMsg) ? errMsg(obj) : errMsg);\n        }\n        return result;\n    };\n}\n/**\n * Like _.pairs: Given an object, returns an array of key/value pairs\n *\n * @example\n * ```\n *\n * pairs({ foo: \"FOO\", bar: \"BAR }) // [ [ \"foo\", \"FOO\" ], [ \"bar\": \"BAR\" ] ]\n * ```\n */\nexport var pairs = function (obj) { return Object.keys(obj).map(function (key) { return [key, obj[key]]; }); };\n/**\n * Given two or more parallel arrays, returns an array of tuples where\n * each tuple is composed of [ a[i], b[i], ... z[i] ]\n *\n * @example\n * ```\n *\n * let foo = [ 0, 2, 4, 6 ];\n * let bar = [ 1, 3, 5, 7 ];\n * let baz = [ 10, 30, 50, 70 ];\n * arrayTuples(foo, bar);       // [ [0, 1], [2, 3], [4, 5], [6, 7] ]\n * arrayTuples(foo, bar, baz);  // [ [0, 1, 10], [2, 3, 30], [4, 5, 50], [6, 7, 70] ]\n * ```\n */\nexport function arrayTuples() {\n    var args = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        args[_i] = arguments[_i];\n    }\n    if (args.length === 0)\n        return [];\n    var maxArrayLen = args.reduce(function (min, arr) { return Math.min(arr.length, min); }, 9007199254740991); // aka 2^53 − 1 aka Number.MAX_SAFE_INTEGER\n    var result = [];\n    var _loop_1 = function (i) {\n        // This is a hot function\n        // Unroll when there are 1-4 arguments\n        switch (args.length) {\n            case 1:\n                result.push([args[0][i]]);\n                break;\n            case 2:\n                result.push([args[0][i], args[1][i]]);\n                break;\n            case 3:\n                result.push([args[0][i], args[1][i], args[2][i]]);\n                break;\n            case 4:\n                result.push([args[0][i], args[1][i], args[2][i], args[3][i]]);\n                break;\n            default:\n                result.push(args.map(function (array) { return array[i]; }));\n                break;\n        }\n    };\n    for (var i = 0; i < maxArrayLen; i++) {\n        _loop_1(i);\n    }\n    return result;\n}\n/**\n * Reduce function which builds an object from an array of [key, value] pairs.\n *\n * Each iteration sets the key/val pair on the memo object, then returns the memo for the next iteration.\n *\n * Each keyValueTuple should be an array with values [ key: string, value: any ]\n *\n * @example\n * ```\n *\n * var pairs = [ [\"fookey\", \"fooval\"], [\"barkey\", \"barval\"] ]\n *\n * var pairsToObj = pairs.reduce((memo, pair) => applyPairs(memo, pair), {})\n * // pairsToObj == { fookey: \"fooval\", barkey: \"barval\" }\n *\n * // Or, more simply:\n * var pairsToObj = pairs.reduce(applyPairs, {})\n * // pairsToObj == { fookey: \"fooval\", barkey: \"barval\" }\n * ```\n */\nexport function applyPairs(memo, keyValTuple) {\n    var key, value;\n    if (isArray(keyValTuple))\n        key = keyValTuple[0], value = keyValTuple[1];\n    if (!isString(key))\n        throw new Error('invalid parameters to applyPairs');\n    memo[key] = value;\n    return memo;\n}\n/** Get the last element of an array */\nexport function tail(arr) {\n    return (arr.length && arr[arr.length - 1]) || undefined;\n}\n/**\n * shallow copy from src to dest\n */\nexport function copy(src, dest) {\n    if (dest)\n        Object.keys(dest).forEach(function (key) { return delete dest[key]; });\n    if (!dest)\n        dest = {};\n    return extend(dest, src);\n}\n/** Naive forEach implementation works with Objects or Arrays */\nfunction _forEach(obj, cb, _this) {\n    if (isArray(obj))\n        return obj.forEach(cb, _this);\n    Object.keys(obj).forEach(function (key) { return cb(obj[key], key); });\n}\nexport function _extend(toObj) {\n    for (var i = 1; i < arguments.length; i++) {\n        var obj = arguments[i];\n        if (!obj)\n            continue;\n        var keys = Object.keys(obj);\n        for (var j = 0; j < keys.length; j++) {\n            toObj[keys[j]] = obj[keys[j]];\n        }\n    }\n    return toObj;\n}\nfunction _equals(o1, o2) {\n    if (o1 === o2)\n        return true;\n    if (o1 === null || o2 === null)\n        return false;\n    if (o1 !== o1 && o2 !== o2)\n        return true; // NaN === NaN\n    var t1 = typeof o1, t2 = typeof o2;\n    if (t1 !== t2 || t1 !== 'object')\n        return false;\n    var tup = [o1, o2];\n    if (all(isArray)(tup))\n        return _arraysEq(o1, o2);\n    if (all(isDate)(tup))\n        return o1.getTime() === o2.getTime();\n    if (all(isRegExp)(tup))\n        return o1.toString() === o2.toString();\n    if (all(isFunction)(tup))\n        return true; // meh\n    var predicates = [isFunction, isArray, isDate, isRegExp];\n    if (predicates.map(any).reduce(function (b, fn) { return b || !!fn(tup); }, false))\n        return false;\n    var keys = {};\n    // tslint:disable-next-line:forin\n    for (var key in o1) {\n        if (!_equals(o1[key], o2[key]))\n            return false;\n        keys[key] = true;\n    }\n    for (var key in o2) {\n        if (!keys[key])\n            return false;\n    }\n    return true;\n}\nfunction _arraysEq(a1, a2) {\n    if (a1.length !== a2.length)\n        return false;\n    return arrayTuples(a1, a2).reduce(function (b, t) { return b && _equals(t[0], t[1]); }, true);\n}\n// issue #2676\nexport var silenceUncaughtInPromise = function (promise) { return promise.catch(function (e) { return 0; }) && promise; };\nexport var silentRejection = function (error) { return silenceUncaughtInPromise(services.$q.reject(error)); };\n","var noImpl = function (fnname) { return function () {\n    throw new Error(\"No implementation for \" + fnname + \". The framework specific code did not implement this method.\");\n}; };\nexport var makeStub = function (service, methods) {\n    return methods.reduce(function (acc, key) { return ((acc[key] = noImpl(service + \".\" + key + \"()\")), acc); }, {});\n};\nvar services = {\n    $q: undefined,\n    $injector: undefined,\n};\nexport { services };\n","/**\n * Matches state names using glob-like pattern strings.\n *\n * Globs can be used in specific APIs including:\n *\n * - [[StateService.is]]\n * - [[StateService.includes]]\n * - The first argument to Hook Registration functions like [[TransitionService.onStart]]\n *    - [[HookMatchCriteria]] and [[HookMatchCriterion]]\n *\n * A `Glob` string is a pattern which matches state names.\n * Nested state names are split into segments (separated by a dot) when processing.\n * The state named `foo.bar.baz` is split into three segments ['foo', 'bar', 'baz']\n *\n * Globs work according to the following rules:\n *\n * ### Exact match:\n *\n * The glob `'A.B'` matches the state named exactly `'A.B'`.\n *\n * | Glob        |Matches states named|Does not match state named|\n * |:------------|:--------------------|:---------------------|\n * | `'A'`       | `'A'`               | `'B'` , `'A.C'`      |\n * | `'A.B'`     | `'A.B'`             | `'A'` , `'A.B.C'`    |\n * | `'foo'`     | `'foo'`             | `'FOO'` , `'foo.bar'`|\n *\n * ### Single star (`*`)\n *\n * A single star (`*`) is a wildcard that matches exactly one segment.\n *\n * | Glob        |Matches states named  |Does not match state named |\n * |:------------|:---------------------|:--------------------------|\n * | `'*'`       | `'A'` , `'Z'`        | `'A.B'` , `'Z.Y.X'`       |\n * | `'A.*'`     | `'A.B'` , `'A.C'`    | `'A'` , `'A.B.C'`         |\n * | `'A.*.*'`   | `'A.B.C'` , `'A.X.Y'`| `'A'`, `'A.B'` , `'Z.Y.X'`|\n *\n * ### Double star (`**`)\n *\n * A double star (`'**'`) is a wildcard that matches *zero or more segments*\n *\n * | Glob        |Matches states named                           |Does not match state named         |\n * |:------------|:----------------------------------------------|:----------------------------------|\n * | `'**'`      | `'A'` , `'A.B'`, `'Z.Y.X'`                    | (matches all states)              |\n * | `'A.**'`    | `'A'` , `'A.B'` , `'A.C.X'`                   | `'Z.Y.X'`                         |\n * | `'**.X'`    | `'X'` , `'A.X'` , `'Z.Y.X'`                   | `'A'` , `'A.login.Z'`             |\n * | `'A.**.X'`  | `'A.X'` , `'A.B.X'` , `'A.B.C.X'`             | `'A'` , `'A.B.C'`                 |\n *\n * @packageDocumentation\n */\nvar Glob = /** @class */ (function () {\n    function Glob(text) {\n        this.text = text;\n        this.glob = text.split('.');\n        var regexpString = this.text\n            .split('.')\n            .map(function (seg) {\n            if (seg === '**')\n                return '(?:|(?:\\\\.[^.]*)*)';\n            if (seg === '*')\n                return '\\\\.[^.]*';\n            return '\\\\.' + seg;\n        })\n            .join('');\n        this.regexp = new RegExp('^' + regexpString + '$');\n    }\n    /** Returns true if the string has glob-like characters in it */\n    Glob.is = function (text) {\n        return !!/[!,*]+/.exec(text);\n    };\n    /** Returns a glob from the string, or null if the string isn't Glob-like */\n    Glob.fromString = function (text) {\n        return Glob.is(text) ? new Glob(text) : null;\n    };\n    Glob.prototype.matches = function (name) {\n        return this.regexp.test('.' + name);\n    };\n    return Glob;\n}());\nexport { Glob };\n","/**\n * Higher order functions\n *\n * These utility functions are exported, but are subject to change without notice.\n *\n * @packageDocumentation\n */\nvar __spreadArrays = (this && this.__spreadArrays) || function () {\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\n            r[k] = a[j];\n    return r;\n};\n/**\n * Returns a new function for [Partial Application](https://en.wikipedia.org/wiki/Partial_application) of the original function.\n *\n * Given a function with N parameters, returns a new function that supports partial application.\n * The new function accepts anywhere from 1 to N parameters.  When that function is called with M parameters,\n * where M is less than N, it returns a new function that accepts the remaining parameters.  It continues to\n * accept more parameters until all N parameters have been supplied.\n *\n *\n * This contrived example uses a partially applied function as an predicate, which returns true\n * if an object is found in both arrays.\n * @example\n * ```\n * // returns true if an object is in both of the two arrays\n * function inBoth(array1, array2, object) {\n *   return array1.indexOf(object) !== -1 &&\n *          array2.indexOf(object) !== 1;\n * }\n * let obj1, obj2, obj3, obj4, obj5, obj6, obj7\n * let foos = [obj1, obj3]\n * let bars = [obj3, obj4, obj5]\n *\n * // A curried \"copy\" of inBoth\n * let curriedInBoth = curry(inBoth);\n * // Partially apply both the array1 and array2\n * let inFoosAndBars = curriedInBoth(foos, bars);\n *\n * // Supply the final argument; since all arguments are\n * // supplied, the original inBoth function is then called.\n * let obj1InBoth = inFoosAndBars(obj1); // false\n *\n * // Use the inFoosAndBars as a predicate.\n * // Filter, on each iteration, supplies the final argument\n * let allObjs = [ obj1, obj2, obj3, obj4, obj5, obj6, obj7 ];\n * let foundInBoth = allObjs.filter(inFoosAndBars); // [ obj3 ]\n *\n * ```\n *\n * @param fn\n * @returns {*|function(): (*|any)}\n */\nexport function curry(fn) {\n    return function curried() {\n        if (arguments.length >= fn.length) {\n            return fn.apply(this, arguments);\n        }\n        var args = Array.prototype.slice.call(arguments);\n        return curried.bind.apply(curried, __spreadArrays([this], args));\n    };\n}\n/**\n * Given a varargs list of functions, returns a function that composes the argument functions, right-to-left\n * given: f(x), g(x), h(x)\n * let composed = compose(f,g,h)\n * then, composed is: f(g(h(x)))\n */\nexport function compose() {\n    var args = arguments;\n    var start = args.length - 1;\n    return function () {\n        var i = start, result = args[start].apply(this, arguments);\n        while (i--)\n            result = args[i].call(this, result);\n        return result;\n    };\n}\n/**\n * Given a varargs list of functions, returns a function that is composes the argument functions, left-to-right\n * given: f(x), g(x), h(x)\n * let piped = pipe(f,g,h);\n * then, piped is: h(g(f(x)))\n */\nexport function pipe() {\n    var funcs = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        funcs[_i] = arguments[_i];\n    }\n    return compose.apply(null, [].slice.call(arguments).reverse());\n}\n/**\n * Given a property name, returns a function that returns that property from an object\n * let obj = { foo: 1, name: \"blarg\" };\n * let getName = prop(\"name\");\n * getName(obj) === \"blarg\"\n */\nexport var prop = function (name) { return function (obj) { return obj && obj[name]; }; };\n/**\n * Given a property name and a value, returns a function that returns a boolean based on whether\n * the passed object has a property that matches the value\n * let obj = { foo: 1, name: \"blarg\" };\n * let getName = propEq(\"name\", \"blarg\");\n * getName(obj) === true\n */\nexport var propEq = curry(function (name, _val, obj) { return obj && obj[name] === _val; });\n/**\n * Given a dotted property name, returns a function that returns a nested property from an object, or undefined\n * let obj = { id: 1, nestedObj: { foo: 1, name: \"blarg\" }, };\n * let getName = prop(\"nestedObj.name\");\n * getName(obj) === \"blarg\"\n * let propNotFound = prop(\"this.property.doesnt.exist\");\n * propNotFound(obj) === undefined\n */\nexport var parse = function (name) { return pipe.apply(null, name.split('.').map(prop)); };\n/**\n * Given a function that returns a truthy or falsey value, returns a\n * function that returns the opposite (falsey or truthy) value given the same inputs\n */\nexport var not = function (fn) { return function () {\n    var args = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        args[_i] = arguments[_i];\n    }\n    return !fn.apply(null, args);\n}; };\n/**\n * Given two functions that return truthy or falsey values, returns a function that returns truthy\n * if both functions return truthy for the given arguments\n */\nexport function and(fn1, fn2) {\n    return function () {\n        var args = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            args[_i] = arguments[_i];\n        }\n        return fn1.apply(null, args) && fn2.apply(null, args);\n    };\n}\n/**\n * Given two functions that return truthy or falsey values, returns a function that returns truthy\n * if at least one of the functions returns truthy for the given arguments\n */\nexport function or(fn1, fn2) {\n    return function () {\n        var args = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            args[_i] = arguments[_i];\n        }\n        return fn1.apply(null, args) || fn2.apply(null, args);\n    };\n}\n/**\n * Check if all the elements of an array match a predicate function\n *\n * @param fn1 a predicate function `fn1`\n * @returns a function which takes an array and returns true if `fn1` is true for all elements of the array\n */\nexport var all = function (fn1) { return function (arr) { return arr.reduce(function (b, x) { return b && !!fn1(x); }, true); }; };\n// tslint:disable-next-line:variable-name\nexport var any = function (fn1) { return function (arr) { return arr.reduce(function (b, x) { return b || !!fn1(x); }, false); }; };\n/** Given a class, returns a Predicate function that returns true if the object is of that class */\nexport var is = function (ctor) { return function (obj) {\n    return (obj != null && obj.constructor === ctor) || obj instanceof ctor;\n}; };\n/** Given a value, returns a Predicate function that returns true if another value is === equal to the original value */\nexport var eq = function (value) { return function (other) { return value === other; }; };\n/** Given a value, returns a function which returns the value */\nexport var val = function (v) { return function () { return v; }; };\nexport function invoke(fnName, args) {\n    return function (obj) { return obj[fnName].apply(obj, args); };\n}\n/**\n * Sorta like Pattern Matching (a functional programming conditional construct)\n *\n * See http://c2.com/cgi/wiki?PatternMatching\n *\n * This is a conditional construct which allows a series of predicates and output functions\n * to be checked and then applied.  Each predicate receives the input.  If the predicate\n * returns truthy, then its matching output function (mapping function) is provided with\n * the input and, then the result is returned.\n *\n * Each combination (2-tuple) of predicate + output function should be placed in an array\n * of size 2: [ predicate, mapFn ]\n *\n * These 2-tuples should be put in an outer array.\n *\n * @example\n * ```\n *\n * // Here's a 2-tuple where the first element is the isString predicate\n * // and the second element is a function that returns a description of the input\n * let firstTuple = [ angular.isString, (input) => `Heres your string ${input}` ];\n *\n * // Second tuple: predicate \"isNumber\", mapfn returns a description\n * let secondTuple = [ angular.isNumber, (input) => `(${input}) That's a number!` ];\n *\n * let third = [ (input) => input === null,  (input) => `Oh, null...` ];\n *\n * let fourth = [ (input) => input === undefined,  (input) => `notdefined` ];\n *\n * let descriptionOf = pattern([ firstTuple, secondTuple, third, fourth ]);\n *\n * console.log(descriptionOf(undefined)); // 'notdefined'\n * console.log(descriptionOf(55)); // '(55) That's a number!'\n * console.log(descriptionOf(\"foo\")); // 'Here's your string foo'\n * ```\n *\n * @param struct A 2D array.  Each element of the array should be an array, a 2-tuple,\n * with a Predicate and a mapping/output function\n * @returns {function(any): *}\n */\nexport function pattern(struct) {\n    return function (x) {\n        for (var i = 0; i < struct.length; i++) {\n            if (struct[i][0](x))\n                return struct[i][1](x);\n        }\n    };\n}\n","/**\n * Predicates\n *\n * These predicates return true/false based on the input.\n * Although these functions are exported, they are subject to change without notice.\n *\n * @packageDocumentation\n */\nimport { and, not, pipe, prop, or } from './hof';\nvar toStr = Object.prototype.toString;\nvar tis = function (t) { return function (x) { return typeof x === t; }; };\nexport var isUndefined = tis('undefined');\nexport var isDefined = not(isUndefined);\nexport var isNull = function (o) { return o === null; };\nexport var isNullOrUndefined = or(isNull, isUndefined);\nexport var isFunction = tis('function');\nexport var isNumber = tis('number');\nexport var isString = tis('string');\nexport var isObject = function (x) { return x !== null && typeof x === 'object'; };\nexport var isArray = Array.isArray;\nexport var isDate = (function (x) { return toStr.call(x) === '[object Date]'; });\nexport var isRegExp = (function (x) { return toStr.call(x) === '[object RegExp]'; });\n/**\n * Predicate which checks if a value is injectable\n *\n * A value is \"injectable\" if it is a function, or if it is an ng1 array-notation-style array\n * where all the elements in the array are Strings, except the last one, which is a Function\n */\nexport function isInjectable(val) {\n    if (isArray(val) && val.length) {\n        var head = val.slice(0, -1), tail = val.slice(-1);\n        return !(head.filter(not(isString)).length || tail.filter(not(isFunction)).length);\n    }\n    return isFunction(val);\n}\n/**\n * Predicate which checks if a value looks like a Promise\n *\n * It is probably a Promise if it's an object, and it has a `then` property which is a Function\n */\nexport var isPromise = and(isObject, pipe(prop('then'), isFunction));\n","import { pushTo } from './common';\nvar Queue = /** @class */ (function () {\n    function Queue(_items, _limit) {\n        if (_items === void 0) { _items = []; }\n        if (_limit === void 0) { _limit = null; }\n        this._items = _items;\n        this._limit = _limit;\n        this._evictListeners = [];\n        this.onEvict = pushTo(this._evictListeners);\n    }\n    Queue.prototype.enqueue = function (item) {\n        var items = this._items;\n        items.push(item);\n        if (this._limit && items.length > this._limit)\n            this.evict();\n        return item;\n    };\n    Queue.prototype.evict = function () {\n        var item = this._items.shift();\n        this._evictListeners.forEach(function (fn) { return fn(item); });\n        return item;\n    };\n    Queue.prototype.dequeue = function () {\n        if (this.size())\n            return this._items.splice(0, 1)[0];\n    };\n    Queue.prototype.clear = function () {\n        var current = this._items;\n        this._items = [];\n        return current;\n    };\n    Queue.prototype.size = function () {\n        return this._items.length;\n    };\n    Queue.prototype.remove = function (item) {\n        var idx = this._items.indexOf(item);\n        return idx > -1 && this._items.splice(idx, 1)[0];\n    };\n    Queue.prototype.peekTail = function () {\n        return this._items[this._items.length - 1];\n    };\n    Queue.prototype.peekHead = function () {\n        if (this.size())\n            return this._items[0];\n    };\n    return Queue;\n}());\nexport { Queue };\n","/**\n * workaround for missing console object in IE9 when dev tools haven't been opened o_O\n * @packageDocumentation\n */\n/* tslint:disable:no-console */\nimport { noop } from './common';\nvar noopConsoleStub = { log: noop, error: noop, table: noop };\nfunction ie9Console(console) {\n    var bound = function (fn) { return Function.prototype.bind.call(fn, console); };\n    return {\n        log: bound(console.log),\n        error: bound(console.log),\n        table: bound(console.log),\n    };\n}\nfunction fallbackConsole(console) {\n    var log = console.log.bind(console);\n    var error = console.error ? console.error.bind(console) : log;\n    var table = console.table ? console.table.bind(console) : log;\n    return { log: log, error: error, table: table };\n}\nfunction getSafeConsole() {\n    // @ts-ignore\n    var isIE9 = typeof document !== 'undefined' && document.documentMode && document.documentMode === 9;\n    if (isIE9) {\n        return window && window.console ? ie9Console(window.console) : noopConsoleStub;\n    }\n    else if (!console.table || !console.error) {\n        return fallbackConsole(console);\n    }\n    else {\n        return console;\n    }\n}\nexport var safeConsole = getSafeConsole();\n","/**\n * Functions that manipulate strings\n *\n * Although these functions are exported, they are subject to change without notice.\n *\n * @packageDocumentation\n */\nimport { isArray, isFunction, isInjectable, isNull, isObject, isPromise, isString, isUndefined } from './predicates';\nimport { Rejection } from '../transition/rejectFactory';\nimport { identity, pushR, tail } from './common';\nimport { pattern, val } from './hof';\n/**\n * Returns a string shortened to a maximum length\n *\n * If the string is already less than the `max` length, return the string.\n * Else return the string, shortened to `max - 3` and append three dots (\"...\").\n *\n * @param max the maximum length of the string to return\n * @param str the input string\n */\nexport function maxLength(max, str) {\n    if (str.length <= max)\n        return str;\n    return str.substr(0, max - 3) + '...';\n}\n/**\n * Returns a string, with spaces added to the end, up to a desired str length\n *\n * If the string is already longer than the desired length, return the string.\n * Else returns the string, with extra spaces on the end, such that it reaches `length` characters.\n *\n * @param length the desired length of the string to return\n * @param str the input string\n */\nexport function padString(length, str) {\n    while (str.length < length)\n        str += ' ';\n    return str;\n}\nexport function kebobString(camelCase) {\n    return camelCase\n        .replace(/^([A-Z])/, function ($1) { return $1.toLowerCase(); }) // replace first char\n        .replace(/([A-Z])/g, function ($1) { return '-' + $1.toLowerCase(); }); // replace rest\n}\nexport function functionToString(fn) {\n    var fnStr = fnToString(fn);\n    var namedFunctionMatch = fnStr.match(/^(function [^ ]+\\([^)]*\\))/);\n    var toStr = namedFunctionMatch ? namedFunctionMatch[1] : fnStr;\n    var fnName = fn['name'] || '';\n    if (fnName && toStr.match(/function \\(/)) {\n        return 'function ' + fnName + toStr.substr(9);\n    }\n    return toStr;\n}\nexport function fnToString(fn) {\n    var _fn = isArray(fn) ? fn.slice(-1)[0] : fn;\n    return (_fn && _fn.toString()) || 'undefined';\n}\nvar isRejection = Rejection.isRejectionPromise;\nvar hasToString = function (obj) {\n    return isObject(obj) && !isArray(obj) && obj.constructor !== Object && isFunction(obj.toString);\n};\nvar stringifyPattern = pattern([\n    [isUndefined, val('undefined')],\n    [isNull, val('null')],\n    [isPromise, val('[Promise]')],\n    [isRejection, function (x) { return x._transitionRejection.toString(); }],\n    [hasToString, function (x) { return x.toString(); }],\n    [isInjectable, functionToString],\n    [val(true), identity],\n]);\nexport function stringify(o) {\n    var seen = [];\n    function format(value) {\n        if (isObject(value)) {\n            if (seen.indexOf(value) !== -1)\n                return '[circular ref]';\n            seen.push(value);\n        }\n        return stringifyPattern(value);\n    }\n    if (isUndefined(o)) {\n        // Workaround for IE & Edge Spec incompatibility where replacer function would not be called when JSON.stringify\n        // is given `undefined` as value. To work around that, we simply detect `undefined` and bail out early by\n        // manually stringifying it.\n        return format(o);\n    }\n    return JSON.stringify(o, function (key, value) { return format(value); }).replace(/\\\\\"/g, '\"');\n}\n/** Returns a function that splits a string on a character or substring */\nexport var beforeAfterSubstr = function (char) { return function (str) {\n    if (!str)\n        return ['', ''];\n    var idx = str.indexOf(char);\n    if (idx === -1)\n        return [str, ''];\n    return [str.substr(0, idx), str.substr(idx + 1)];\n}; };\nexport var hostRegex = new RegExp('^(?:[a-z]+:)?//[^/]+/');\nexport var stripLastPathElement = function (str) { return str.replace(/\\/[^/]*$/, ''); };\nexport var splitHash = beforeAfterSubstr('#');\nexport var splitQuery = beforeAfterSubstr('?');\nexport var splitEqual = beforeAfterSubstr('=');\nexport var trimHashVal = function (str) { return (str ? str.replace(/^#/, '') : ''); };\n/**\n * Splits on a delimiter, but returns the delimiters in the array\n *\n * #### Example:\n * ```js\n * var splitOnSlashes = splitOnDelim('/');\n * splitOnSlashes(\"/foo\"); // [\"/\", \"foo\"]\n * splitOnSlashes(\"/foo/\"); // [\"/\", \"foo\", \"/\"]\n * ```\n */\nexport function splitOnDelim(delim) {\n    var re = new RegExp('(' + delim + ')', 'g');\n    return function (str) { return str.split(re).filter(identity); };\n}\n/**\n * Reduce fn that joins neighboring strings\n *\n * Given an array of strings, returns a new array\n * where all neighboring strings have been joined.\n *\n * #### Example:\n * ```js\n * let arr = [\"foo\", \"bar\", 1, \"baz\", \"\", \"qux\" ];\n * arr.reduce(joinNeighborsR, []) // [\"foobar\", 1, \"bazqux\" ]\n * ```\n */\nexport function joinNeighborsR(acc, x) {\n    if (isString(tail(acc)) && isString(x))\n        return acc.slice(0, -1).concat(tail(acc) + x);\n    return pushR(acc, x);\n}\n","/**\n * # Transition tracing (debug)\n *\n * Enable transition tracing to print transition information to the console,\n * in order to help debug your application.\n * Tracing logs detailed information about each Transition to your console.\n *\n * To enable tracing, import the [[Trace]] singleton and enable one or more categories.\n *\n * ### ES6\n * ```js\n * import {trace} from \"@uirouter/core\";\n * trace.enable(1, 5); // TRANSITION and VIEWCONFIG\n * ```\n *\n * ### CJS\n * ```js\n * let trace = require(\"@uirouter/core\").trace;\n * trace.enable(\"TRANSITION\", \"VIEWCONFIG\");\n * ```\n *\n * ### Globals\n * ```js\n * let trace = window[\"@uirouter/core\"].trace;\n * trace.enable(); // Trace everything (very verbose)\n * ```\n *\n * ### Angular 1:\n * ```js\n * app.run($trace => $trace.enable());\n * ```\n *\n * @packageDocumentation\n */\nimport { parse } from '../common/hof';\nimport { isNumber } from '../common/predicates';\nimport { stringify, functionToString, maxLength, padString } from './strings';\nimport { safeConsole } from './safeConsole';\nfunction uiViewString(uiview) {\n    if (!uiview)\n        return 'ui-view (defunct)';\n    var state = uiview.creationContext ? uiview.creationContext.name || '(root)' : '(none)';\n    return \"[ui-view#\" + uiview.id + \" \" + uiview.$type + \":\" + uiview.fqn + \" (\" + uiview.name + \"@\" + state + \")]\";\n}\nvar viewConfigString = function (viewConfig) {\n    var view = viewConfig.viewDecl;\n    var state = view.$context.name || '(root)';\n    return \"[View#\" + viewConfig.$id + \" from '\" + state + \"' state]: target ui-view: '\" + view.$uiViewName + \"@\" + view.$uiViewContextAnchor + \"'\";\n};\nfunction normalizedCat(input) {\n    return isNumber(input) ? Category[input] : Category[Category[input]];\n}\n/**\n * Trace categories Enum\n *\n * Enable or disable a category using [[Trace.enable]] or [[Trace.disable]]\n *\n * `trace.enable(Category.TRANSITION)`\n *\n * These can also be provided using a matching string, or position ordinal\n *\n * `trace.enable(\"TRANSITION\")`\n *\n * `trace.enable(1)`\n */\nvar Category;\n(function (Category) {\n    Category[Category[\"RESOLVE\"] = 0] = \"RESOLVE\";\n    Category[Category[\"TRANSITION\"] = 1] = \"TRANSITION\";\n    Category[Category[\"HOOK\"] = 2] = \"HOOK\";\n    Category[Category[\"UIVIEW\"] = 3] = \"UIVIEW\";\n    Category[Category[\"VIEWCONFIG\"] = 4] = \"VIEWCONFIG\";\n})(Category || (Category = {}));\nexport { Category };\nvar _tid = parse('$id');\nvar _rid = parse('router.$id');\nvar transLbl = function (trans) { return \"Transition #\" + _tid(trans) + \"-\" + _rid(trans); };\n/**\n * Prints UI-Router Transition trace information to the console.\n */\nvar Trace = /** @class */ (function () {\n    /** @internal */\n    function Trace() {\n        /** @internal */\n        this._enabled = {};\n        this.approximateDigests = 0;\n    }\n    /** @internal */\n    Trace.prototype._set = function (enabled, categories) {\n        var _this = this;\n        if (!categories.length) {\n            categories = Object.keys(Category)\n                .map(function (k) { return parseInt(k, 10); })\n                .filter(function (k) { return !isNaN(k); })\n                .map(function (key) { return Category[key]; });\n        }\n        categories.map(normalizedCat).forEach(function (category) { return (_this._enabled[category] = enabled); });\n    };\n    Trace.prototype.enable = function () {\n        var categories = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            categories[_i] = arguments[_i];\n        }\n        this._set(true, categories);\n    };\n    Trace.prototype.disable = function () {\n        var categories = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            categories[_i] = arguments[_i];\n        }\n        this._set(false, categories);\n    };\n    /**\n     * Retrieves the enabled stateus of a [[Category]]\n     *\n     * ```js\n     * trace.enabled(\"VIEWCONFIG\"); // true or false\n     * ```\n     *\n     * @returns boolean true if the category is enabled\n     */\n    Trace.prototype.enabled = function (category) {\n        return !!this._enabled[normalizedCat(category)];\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceTransitionStart = function (trans) {\n        if (!this.enabled(Category.TRANSITION))\n            return;\n        safeConsole.log(transLbl(trans) + \": Started  -> \" + stringify(trans));\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceTransitionIgnored = function (trans) {\n        if (!this.enabled(Category.TRANSITION))\n            return;\n        safeConsole.log(transLbl(trans) + \": Ignored  <> \" + stringify(trans));\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceHookInvocation = function (step, trans, options) {\n        if (!this.enabled(Category.HOOK))\n            return;\n        var event = parse('traceData.hookType')(options) || 'internal', context = parse('traceData.context.state.name')(options) || parse('traceData.context')(options) || 'unknown', name = functionToString(step.registeredHook.callback);\n        safeConsole.log(transLbl(trans) + \":   Hook -> \" + event + \" context: \" + context + \", \" + maxLength(200, name));\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceHookResult = function (hookResult, trans, transitionOptions) {\n        if (!this.enabled(Category.HOOK))\n            return;\n        safeConsole.log(transLbl(trans) + \":   <- Hook returned: \" + maxLength(200, stringify(hookResult)));\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceResolvePath = function (path, when, trans) {\n        if (!this.enabled(Category.RESOLVE))\n            return;\n        safeConsole.log(transLbl(trans) + \":         Resolving \" + path + \" (\" + when + \")\");\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceResolvableResolved = function (resolvable, trans) {\n        if (!this.enabled(Category.RESOLVE))\n            return;\n        safeConsole.log(transLbl(trans) + \":               <- Resolved  \" + resolvable + \" to: \" + maxLength(200, stringify(resolvable.data)));\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceError = function (reason, trans) {\n        if (!this.enabled(Category.TRANSITION))\n            return;\n        safeConsole.log(transLbl(trans) + \": <- Rejected \" + stringify(trans) + \", reason: \" + reason);\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceSuccess = function (finalState, trans) {\n        if (!this.enabled(Category.TRANSITION))\n            return;\n        safeConsole.log(transLbl(trans) + \": <- Success  \" + stringify(trans) + \", final state: \" + finalState.name);\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceUIViewEvent = function (event, viewData, extra) {\n        if (extra === void 0) { extra = ''; }\n        if (!this.enabled(Category.UIVIEW))\n            return;\n        safeConsole.log(\"ui-view: \" + padString(30, event) + \" \" + uiViewString(viewData) + extra);\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceUIViewConfigUpdated = function (viewData, context) {\n        if (!this.enabled(Category.UIVIEW))\n            return;\n        this.traceUIViewEvent('Updating', viewData, \" with ViewConfig from context='\" + context + \"'\");\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceUIViewFill = function (viewData, html) {\n        if (!this.enabled(Category.UIVIEW))\n            return;\n        this.traceUIViewEvent('Fill', viewData, \" with: \" + maxLength(200, html));\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceViewSync = function (pairs) {\n        if (!this.enabled(Category.VIEWCONFIG))\n            return;\n        var uivheader = 'uiview component fqn';\n        var cfgheader = 'view config state (view name)';\n        var mapping = pairs\n            .map(function (_a) {\n            var _b;\n            var uiView = _a.uiView, viewConfig = _a.viewConfig;\n            var uiv = uiView && uiView.fqn;\n            var cfg = viewConfig && viewConfig.viewDecl.$context.name + \": (\" + viewConfig.viewDecl.$name + \")\";\n            return _b = {}, _b[uivheader] = uiv, _b[cfgheader] = cfg, _b;\n        })\n            .sort(function (a, b) { return (a[uivheader] || '').localeCompare(b[uivheader] || ''); });\n        safeConsole.table(mapping);\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceViewServiceEvent = function (event, viewConfig) {\n        if (!this.enabled(Category.VIEWCONFIG))\n            return;\n        safeConsole.log(\"VIEWCONFIG: \" + event + \" \" + viewConfigString(viewConfig));\n    };\n    /** @internal called by ui-router code */\n    Trace.prototype.traceViewServiceUIViewEvent = function (event, viewData) {\n        if (!this.enabled(Category.VIEWCONFIG))\n            return;\n        safeConsole.log(\"VIEWCONFIG: \" + event + \" \" + uiViewString(viewData));\n    };\n    return Trace;\n}());\nexport { Trace };\n/**\n * The [[Trace]] singleton\n *\n * #### Example:\n * ```js\n * import {trace} from \"@uirouter/core\";\n * trace.enable(1, 5);\n * ```\n */\nvar trace = new Trace();\nexport { trace };\n","import { StateParams } from './params/stateParams';\nimport { Queue } from './common/queue';\n/**\n * Global router state\n *\n * This is where we hold the global mutable state such as current state, current\n * params, current transition, etc.\n */\nvar UIRouterGlobals = /** @class */ (function () {\n    function UIRouterGlobals() {\n        /**\n         * Current parameter values\n         *\n         * The parameter values from the latest successful transition\n         */\n        this.params = new StateParams();\n        /** @internal */\n        this.lastStartedTransitionId = -1;\n        /** @internal */\n        this.transitionHistory = new Queue([], 1);\n        /** @internal */\n        this.successfulTransitions = new Queue([], 1);\n    }\n    UIRouterGlobals.prototype.dispose = function () {\n        this.transitionHistory.clear();\n        this.successfulTransitions.clear();\n        this.transition = null;\n    };\n    return UIRouterGlobals;\n}());\nexport { UIRouterGlobals };\n","import { services } from '../common/coreservices';\n/**\n * A [[TransitionHookFn]] that performs lazy loading\n *\n * When entering a state \"abc\" which has a `lazyLoad` function defined:\n * - Invoke the `lazyLoad` function (unless it is already in process)\n *   - Flag the hook function as \"in process\"\n *   - The function should return a promise (that resolves when lazy loading is complete)\n * - Wait for the promise to settle\n *   - If the promise resolves to a [[LazyLoadResult]], then register those states\n *   - Flag the hook function as \"not in process\"\n * - If the hook was successful\n *   - Remove the `lazyLoad` function from the state declaration\n * - If all the hooks were successful\n *   - Retry the transition (by returning a TargetState)\n *\n * ```\n * .state('abc', {\n *   component: 'fooComponent',\n *   lazyLoad: () => import('./fooComponent')\n *   });\n * ```\n *\n * See [[StateDeclaration.lazyLoad]]\n */\nvar lazyLoadHook = function (transition) {\n    var router = transition.router;\n    function retryTransition() {\n        if (transition.originalTransition().options().source !== 'url') {\n            // The original transition was not triggered via url sync\n            // The lazy state should be loaded now, so re-try the original transition\n            var orig = transition.targetState();\n            return router.stateService.target(orig.identifier(), orig.params(), orig.options());\n        }\n        // The original transition was triggered via url sync\n        // Run the URL rules and find the best match\n        var $url = router.urlService;\n        var result = $url.match($url.parts());\n        var rule = result && result.rule;\n        // If the best match is a state, redirect the transition (instead\n        // of calling sync() which supersedes the current transition)\n        if (rule && rule.type === 'STATE') {\n            var state = rule.state;\n            var params = result.match;\n            return router.stateService.target(state, params, transition.options());\n        }\n        // No matching state found, so let .sync() choose the best non-state match/otherwise\n        router.urlService.sync();\n    }\n    var promises = transition\n        .entering()\n        .filter(function (state) { return !!state.$$state().lazyLoad; })\n        .map(function (state) { return lazyLoadState(transition, state); });\n    return services.$q.all(promises).then(retryTransition);\n};\nexport var registerLazyLoadHook = function (transitionService) {\n    return transitionService.onBefore({ entering: function (state) { return !!state.lazyLoad; } }, lazyLoadHook);\n};\n/**\n * Invokes a state's lazy load function\n *\n * @param transition a Transition context\n * @param state the state to lazy load\n * @returns A promise for the lazy load result\n */\nexport function lazyLoadState(transition, state) {\n    var lazyLoadFn = state.$$state().lazyLoad;\n    // Store/get the lazy load promise on/from the hookfn so it doesn't get re-invoked\n    var promise = lazyLoadFn['_promise'];\n    if (!promise) {\n        var success = function (result) {\n            delete state.lazyLoad;\n            delete state.$$state().lazyLoad;\n            delete lazyLoadFn['_promise'];\n            return result;\n        };\n        var error = function (err) {\n            delete lazyLoadFn['_promise'];\n            return services.$q.reject(err);\n        };\n        promise = lazyLoadFn['_promise'] = services.$q\n            .when(lazyLoadFn(transition, state))\n            .then(updateStateRegistry)\n            .then(success, error);\n    }\n    /** Register any lazy loaded state definitions */\n    function updateStateRegistry(result) {\n        if (result && Array.isArray(result.states)) {\n            result.states.forEach(function (_state) { return transition.router.stateRegistry.register(_state); });\n        }\n        return result;\n    }\n    return promise;\n}\n","import { extend, filter, map, allTrueR, find } from '../common/common';\nimport { prop } from '../common/hof';\nimport { isInjectable, isDefined, isString, isArray, isUndefined } from '../common/predicates';\nimport { services } from '../common/coreservices';\nimport { ParamType } from './paramType';\nvar hasOwn = Object.prototype.hasOwnProperty;\nvar isShorthand = function (cfg) {\n    return ['value', 'type', 'squash', 'array', 'dynamic'].filter(hasOwn.bind(cfg || {})).length === 0;\n};\nvar DefType;\n(function (DefType) {\n    DefType[DefType[\"PATH\"] = 0] = \"PATH\";\n    DefType[DefType[\"SEARCH\"] = 1] = \"SEARCH\";\n    DefType[DefType[\"CONFIG\"] = 2] = \"CONFIG\";\n})(DefType || (DefType = {}));\nexport { DefType };\nfunction getParamDeclaration(paramName, location, state) {\n    var noReloadOnSearch = (state.reloadOnSearch === false && location === DefType.SEARCH) || undefined;\n    var dynamic = find([state.dynamic, noReloadOnSearch], isDefined);\n    var defaultConfig = isDefined(dynamic) ? { dynamic: dynamic } : {};\n    var paramConfig = unwrapShorthand(state && state.params && state.params[paramName]);\n    return extend(defaultConfig, paramConfig);\n}\nfunction unwrapShorthand(cfg) {\n    cfg = isShorthand(cfg) ? { value: cfg } : cfg;\n    getStaticDefaultValue['__cacheable'] = true;\n    function getStaticDefaultValue() {\n        return cfg.value;\n    }\n    var $$fn = isInjectable(cfg.value) ? cfg.value : getStaticDefaultValue;\n    return extend(cfg, { $$fn: $$fn });\n}\nfunction getType(cfg, urlType, location, id, paramTypes) {\n    if (cfg.type && urlType && urlType.name !== 'string')\n        throw new Error(\"Param '\" + id + \"' has two type configurations.\");\n    if (cfg.type && urlType && urlType.name === 'string' && paramTypes.type(cfg.type))\n        return paramTypes.type(cfg.type);\n    if (urlType)\n        return urlType;\n    if (!cfg.type) {\n        var type = location === DefType.CONFIG\n            ? 'any'\n            : location === DefType.PATH\n                ? 'path'\n                : location === DefType.SEARCH\n                    ? 'query'\n                    : 'string';\n        return paramTypes.type(type);\n    }\n    return cfg.type instanceof ParamType ? cfg.type : paramTypes.type(cfg.type);\n}\n/** returns false, true, or the squash value to indicate the \"default parameter url squash policy\". */\nfunction getSquashPolicy(config, isOptional, defaultPolicy) {\n    var squash = config.squash;\n    if (!isOptional || squash === false)\n        return false;\n    if (!isDefined(squash) || squash == null)\n        return defaultPolicy;\n    if (squash === true || isString(squash))\n        return squash;\n    throw new Error(\"Invalid squash policy: '\" + squash + \"'. Valid policies: false, true, or arbitrary string\");\n}\nfunction getReplace(config, arrayMode, isOptional, squash) {\n    var defaultPolicy = [\n        { from: '', to: isOptional || arrayMode ? undefined : '' },\n        { from: null, to: isOptional || arrayMode ? undefined : '' },\n    ];\n    var replace = isArray(config.replace) ? config.replace : [];\n    if (isString(squash))\n        replace.push({ from: squash, to: undefined });\n    var configuredKeys = map(replace, prop('from'));\n    return filter(defaultPolicy, function (item) { return configuredKeys.indexOf(item.from) === -1; }).concat(replace);\n}\nvar Param = /** @class */ (function () {\n    function Param(id, type, location, urlConfig, state) {\n        var config = getParamDeclaration(id, location, state);\n        type = getType(config, type, location, id, urlConfig.paramTypes);\n        var arrayMode = getArrayMode();\n        type = arrayMode ? type.$asArray(arrayMode, location === DefType.SEARCH) : type;\n        var isOptional = config.value !== undefined || location === DefType.SEARCH;\n        var dynamic = isDefined(config.dynamic) ? !!config.dynamic : !!type.dynamic;\n        var raw = isDefined(config.raw) ? !!config.raw : !!type.raw;\n        var squash = getSquashPolicy(config, isOptional, urlConfig.defaultSquashPolicy());\n        var replace = getReplace(config, arrayMode, isOptional, squash);\n        var inherit = isDefined(config.inherit) ? !!config.inherit : !!type.inherit;\n        // array config: param name (param[]) overrides default settings.  explicit config overrides param name.\n        function getArrayMode() {\n            var arrayDefaults = { array: location === DefType.SEARCH ? 'auto' : false };\n            var arrayParamNomenclature = id.match(/\\[\\]$/) ? { array: true } : {};\n            return extend(arrayDefaults, arrayParamNomenclature, config).array;\n        }\n        extend(this, { id: id, type: type, location: location, isOptional: isOptional, dynamic: dynamic, raw: raw, squash: squash, replace: replace, inherit: inherit, array: arrayMode, config: config });\n    }\n    Param.values = function (params, values) {\n        if (values === void 0) { values = {}; }\n        var paramValues = {};\n        for (var _i = 0, params_1 = params; _i < params_1.length; _i++) {\n            var param = params_1[_i];\n            paramValues[param.id] = param.value(values[param.id]);\n        }\n        return paramValues;\n    };\n    /**\n     * Finds [[Param]] objects which have different param values\n     *\n     * Filters a list of [[Param]] objects to only those whose parameter values differ in two param value objects\n     *\n     * @param params: The list of Param objects to filter\n     * @param values1: The first set of parameter values\n     * @param values2: the second set of parameter values\n     *\n     * @returns any Param objects whose values were different between values1 and values2\n     */\n    Param.changed = function (params, values1, values2) {\n        if (values1 === void 0) { values1 = {}; }\n        if (values2 === void 0) { values2 = {}; }\n        return params.filter(function (param) { return !param.type.equals(values1[param.id], values2[param.id]); });\n    };\n    /**\n     * Checks if two param value objects are equal (for a set of [[Param]] objects)\n     *\n     * @param params The list of [[Param]] objects to check\n     * @param values1 The first set of param values\n     * @param values2 The second set of param values\n     *\n     * @returns true if the param values in values1 and values2 are equal\n     */\n    Param.equals = function (params, values1, values2) {\n        if (values1 === void 0) { values1 = {}; }\n        if (values2 === void 0) { values2 = {}; }\n        return Param.changed(params, values1, values2).length === 0;\n    };\n    /** Returns true if a the parameter values are valid, according to the Param definitions */\n    Param.validates = function (params, values) {\n        if (values === void 0) { values = {}; }\n        return params.map(function (param) { return param.validates(values[param.id]); }).reduce(allTrueR, true);\n    };\n    Param.prototype.isDefaultValue = function (value) {\n        return this.isOptional && this.type.equals(this.value(), value);\n    };\n    /**\n     * [Internal] Gets the decoded representation of a value if the value is defined, otherwise, returns the\n     * default value, which may be the result of an injectable function.\n     */\n    Param.prototype.value = function (value) {\n        var _this = this;\n        /**\n         * [Internal] Get the default value of a parameter, which may be an injectable function.\n         */\n        var getDefaultValue = function () {\n            if (_this._defaultValueCache)\n                return _this._defaultValueCache.defaultValue;\n            if (!services.$injector)\n                throw new Error('Injectable functions cannot be called at configuration time');\n            var defaultValue = services.$injector.invoke(_this.config.$$fn);\n            if (defaultValue !== null && defaultValue !== undefined && !_this.type.is(defaultValue))\n                throw new Error(\"Default value (\" + defaultValue + \") for parameter '\" + _this.id + \"' is not an instance of ParamType (\" + _this.type.name + \")\");\n            if (_this.config.$$fn['__cacheable']) {\n                _this._defaultValueCache = { defaultValue: defaultValue };\n            }\n            return defaultValue;\n        };\n        var replaceSpecialValues = function (val) {\n            for (var _i = 0, _a = _this.replace; _i < _a.length; _i++) {\n                var tuple = _a[_i];\n                if (tuple.from === val)\n                    return tuple.to;\n            }\n            return val;\n        };\n        value = replaceSpecialValues(value);\n        return isUndefined(value) ? getDefaultValue() : this.type.$normalize(value);\n    };\n    Param.prototype.isSearch = function () {\n        return this.location === DefType.SEARCH;\n    };\n    Param.prototype.validates = function (value) {\n        // There was no parameter value, but the param is optional\n        if ((isUndefined(value) || value === null) && this.isOptional)\n            return true;\n        // The value was not of the correct ParamType, and could not be decoded to the correct ParamType\n        var normalized = this.type.$normalize(value);\n        if (!this.type.is(normalized))\n            return false;\n        // The value was of the correct type, but when encoded, did not match the ParamType's regexp\n        var encoded = this.type.encode(normalized);\n        return !(isString(encoded) && !this.type.pattern.exec(encoded));\n    };\n    Param.prototype.toString = function () {\n        return \"{Param:\" + this.id + \" \" + this.type + \" squash: '\" + this.squash + \"' optional: \" + this.isOptional + \"}\";\n    };\n    return Param;\n}());\nexport { Param };\n","import { extend, filter, map } from '../common/common';\nimport { isArray, isDefined } from '../common/predicates';\n/**\n * An internal class which implements [[ParamTypeDefinition]].\n *\n * A [[ParamTypeDefinition]] is a plain javascript object used to register custom parameter types.\n * When a param type definition is registered, an instance of this class is created internally.\n *\n * This class has naive implementations for all the [[ParamTypeDefinition]] methods.\n *\n * Used by [[UrlMatcher]] when matching or formatting URLs, or comparing and validating parameter values.\n *\n * #### Example:\n * ```js\n * var paramTypeDef = {\n *   decode: function(val) { return parseInt(val, 10); },\n *   encode: function(val) { return val && val.toString(); },\n *   equals: function(a, b) { return this.is(a) && a === b; },\n *   is: function(val) { return angular.isNumber(val) && isFinite(val) && val % 1 === 0; },\n *   pattern: /\\d+/\n * }\n *\n * var paramType = new ParamType(paramTypeDef);\n * ```\n */\nvar ParamType = /** @class */ (function () {\n    /**\n     * @param def  A configuration object which contains the custom type definition.  The object's\n     *        properties will override the default methods and/or pattern in `ParamType`'s public interface.\n     * @returns a new ParamType object\n     */\n    function ParamType(def) {\n        /** @inheritdoc */\n        this.pattern = /.*/;\n        /** @inheritdoc */\n        this.inherit = true;\n        extend(this, def);\n    }\n    // consider these four methods to be \"abstract methods\" that should be overridden\n    /** @inheritdoc */\n    ParamType.prototype.is = function (val, key) {\n        return true;\n    };\n    /** @inheritdoc */\n    ParamType.prototype.encode = function (val, key) {\n        return val;\n    };\n    /** @inheritdoc */\n    ParamType.prototype.decode = function (val, key) {\n        return val;\n    };\n    /** @inheritdoc */\n    ParamType.prototype.equals = function (a, b) {\n        // tslint:disable-next-line:triple-equals\n        return a == b;\n    };\n    ParamType.prototype.$subPattern = function () {\n        var sub = this.pattern.toString();\n        return sub.substr(1, sub.length - 2);\n    };\n    ParamType.prototype.toString = function () {\n        return \"{ParamType:\" + this.name + \"}\";\n    };\n    /** Given an encoded string, or a decoded object, returns a decoded object */\n    ParamType.prototype.$normalize = function (val) {\n        return this.is(val) ? val : this.decode(val);\n    };\n    /**\n     * Wraps an existing custom ParamType as an array of ParamType, depending on 'mode'.\n     * e.g.:\n     * - urlmatcher pattern \"/path?{queryParam[]:int}\"\n     * - url: \"/path?queryParam=1&queryParam=2\n     * - $stateParams.queryParam will be [1, 2]\n     * if `mode` is \"auto\", then\n     * - url: \"/path?queryParam=1 will create $stateParams.queryParam: 1\n     * - url: \"/path?queryParam=1&queryParam=2 will create $stateParams.queryParam: [1, 2]\n     */\n    ParamType.prototype.$asArray = function (mode, isSearch) {\n        if (!mode)\n            return this;\n        if (mode === 'auto' && !isSearch)\n            throw new Error(\"'auto' array mode is for query parameters only\");\n        return new ArrayType(this, mode);\n    };\n    return ParamType;\n}());\nexport { ParamType };\n/** Wraps up a `ParamType` object to handle array values. */\nfunction ArrayType(type, mode) {\n    var _this = this;\n    // Wrap non-array value as array\n    function arrayWrap(val) {\n        return isArray(val) ? val : isDefined(val) ? [val] : [];\n    }\n    // Unwrap array value for \"auto\" mode. Return undefined for empty array.\n    function arrayUnwrap(val) {\n        switch (val.length) {\n            case 0:\n                return undefined;\n            case 1:\n                return mode === 'auto' ? val[0] : val;\n            default:\n                return val;\n        }\n    }\n    // Wraps type (.is/.encode/.decode) functions to operate on each value of an array\n    function arrayHandler(callback, allTruthyMode) {\n        return function handleArray(val) {\n            if (isArray(val) && val.length === 0)\n                return val;\n            var arr = arrayWrap(val);\n            var result = map(arr, callback);\n            return allTruthyMode === true ? filter(result, function (x) { return !x; }).length === 0 : arrayUnwrap(result);\n        };\n    }\n    // Wraps type (.equals) functions to operate on each value of an array\n    function arrayEqualsHandler(callback) {\n        return function handleArray(val1, val2) {\n            var left = arrayWrap(val1), right = arrayWrap(val2);\n            if (left.length !== right.length)\n                return false;\n            for (var i = 0; i < left.length; i++) {\n                if (!callback(left[i], right[i]))\n                    return false;\n            }\n            return true;\n        };\n    }\n    ['encode', 'decode', 'equals', '$normalize'].forEach(function (name) {\n        var paramTypeFn = type[name].bind(type);\n        var wrapperFn = name === 'equals' ? arrayEqualsHandler : arrayHandler;\n        _this[name] = wrapperFn(paramTypeFn);\n    });\n    extend(this, {\n        dynamic: type.dynamic,\n        name: type.name,\n        pattern: type.pattern,\n        inherit: type.inherit,\n        raw: type.raw,\n        is: arrayHandler(type.is.bind(type), true),\n        $arrayMode: mode,\n    });\n}\n","import { fromJson, toJson, identity, equals, inherit, map, extend, pick } from '../common/common';\nimport { isDefined, isNullOrUndefined } from '../common/predicates';\nimport { is } from '../common/hof';\nimport { services } from '../common/coreservices';\nimport { ParamType } from './paramType';\n/**\n * A registry for parameter types.\n *\n * This registry manages the built-in (and custom) parameter types.\n *\n * The built-in parameter types are:\n *\n * - [[string]]\n * - [[path]]\n * - [[query]]\n * - [[hash]]\n * - [[int]]\n * - [[bool]]\n * - [[date]]\n * - [[json]]\n * - [[any]]\n *\n * To register custom parameter types, use [[UrlConfig.type]], i.e.,\n *\n * ```js\n * router.urlService.config.type(customType)\n * ```\n */\nvar ParamTypes = /** @class */ (function () {\n    function ParamTypes() {\n        this.enqueue = true;\n        this.typeQueue = [];\n        this.defaultTypes = pick(ParamTypes.prototype, [\n            'hash',\n            'string',\n            'query',\n            'path',\n            'int',\n            'bool',\n            'date',\n            'json',\n            'any',\n        ]);\n        // Register default types. Store them in the prototype of this.types.\n        var makeType = function (definition, name) { return new ParamType(extend({ name: name }, definition)); };\n        this.types = inherit(map(this.defaultTypes, makeType), {});\n    }\n    ParamTypes.prototype.dispose = function () {\n        this.types = {};\n    };\n    /**\n     * Registers a parameter type\n     *\n     * End users should call [[UrlMatcherFactory.type]], which delegates to this method.\n     */\n    ParamTypes.prototype.type = function (name, definition, definitionFn) {\n        if (!isDefined(definition))\n            return this.types[name];\n        if (this.types.hasOwnProperty(name))\n            throw new Error(\"A type named '\" + name + \"' has already been defined.\");\n        this.types[name] = new ParamType(extend({ name: name }, definition));\n        if (definitionFn) {\n            this.typeQueue.push({ name: name, def: definitionFn });\n            if (!this.enqueue)\n                this._flushTypeQueue();\n        }\n        return this;\n    };\n    ParamTypes.prototype._flushTypeQueue = function () {\n        while (this.typeQueue.length) {\n            var type = this.typeQueue.shift();\n            if (type.pattern)\n                throw new Error(\"You cannot override a type's .pattern at runtime.\");\n            extend(this.types[type.name], services.$injector.invoke(type.def));\n        }\n    };\n    return ParamTypes;\n}());\nexport { ParamTypes };\nfunction initDefaultTypes() {\n    var makeDefaultType = function (def) {\n        var valToString = function (val) { return (val != null ? val.toString() : val); };\n        var defaultTypeBase = {\n            encode: valToString,\n            decode: valToString,\n            is: is(String),\n            pattern: /.*/,\n            // tslint:disable-next-line:triple-equals\n            equals: function (a, b) { return a == b; },\n        };\n        return extend({}, defaultTypeBase, def);\n    };\n    // Default Parameter Type Definitions\n    extend(ParamTypes.prototype, {\n        string: makeDefaultType({}),\n        path: makeDefaultType({\n            pattern: /[^/]*/,\n        }),\n        query: makeDefaultType({}),\n        hash: makeDefaultType({\n            inherit: false,\n        }),\n        int: makeDefaultType({\n            decode: function (val) { return parseInt(val, 10); },\n            is: function (val) {\n                return !isNullOrUndefined(val) && this.decode(val.toString()) === val;\n            },\n            pattern: /-?\\d+/,\n        }),\n        bool: makeDefaultType({\n            encode: function (val) { return (val && 1) || 0; },\n            decode: function (val) { return parseInt(val, 10) !== 0; },\n            is: is(Boolean),\n            pattern: /0|1/,\n        }),\n        date: makeDefaultType({\n            encode: function (val) {\n                return !this.is(val)\n                    ? undefined\n                    : [val.getFullYear(), ('0' + (val.getMonth() + 1)).slice(-2), ('0' + val.getDate()).slice(-2)].join('-');\n            },\n            decode: function (val) {\n                if (this.is(val))\n                    return val;\n                var match = this.capture.exec(val);\n                return match ? new Date(match[1], match[2] - 1, match[3]) : undefined;\n            },\n            is: function (val) { return val instanceof Date && !isNaN(val.valueOf()); },\n            equals: function (l, r) {\n                return ['getFullYear', 'getMonth', 'getDate'].reduce(function (acc, fn) { return acc && l[fn]() === r[fn](); }, true);\n            },\n            pattern: /[0-9]{4}-(?:0[1-9]|1[0-2])-(?:0[1-9]|[1-2][0-9]|3[0-1])/,\n            capture: /([0-9]{4})-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])/,\n        }),\n        json: makeDefaultType({\n            encode: toJson,\n            decode: fromJson,\n            is: is(Object),\n            equals: equals,\n            pattern: /[^/]*/,\n        }),\n        // does not encode/decode\n        any: makeDefaultType({\n            encode: identity,\n            decode: identity,\n            is: function () { return true; },\n            equals: equals,\n        }),\n    });\n}\ninitDefaultTypes();\n","import { extend, ancestors } from '../common/common';\nvar StateParams = /** @class */ (function () {\n    function StateParams(params) {\n        if (params === void 0) { params = {}; }\n        extend(this, params);\n    }\n    /**\n     * Merges a set of parameters with all parameters inherited between the common parents of the\n     * current state and a given destination state.\n     *\n     * @param {Object} newParams The set of parameters which will be composited with inherited params.\n     * @param {Object} $current Internal definition of object representing the current state.\n     * @param {Object} $to Internal definition of object representing state to transition to.\n     */\n    StateParams.prototype.$inherit = function (newParams, $current, $to) {\n        var parentParams;\n        var parents = ancestors($current, $to), inherited = {}, inheritList = [];\n        for (var i in parents) {\n            if (!parents[i] || !parents[i].params)\n                continue;\n            parentParams = Object.keys(parents[i].params);\n            if (!parentParams.length)\n                continue;\n            for (var j in parentParams) {\n                if (inheritList.indexOf(parentParams[j]) >= 0)\n                    continue;\n                inheritList.push(parentParams[j]);\n                inherited[parentParams[j]] = this[parentParams[j]];\n            }\n        }\n        return extend({}, inherited, newParams);\n    };\n    return StateParams;\n}());\nexport { StateParams };\n","import { extend, applyPairs, find } from '../common/common';\nimport { propEq } from '../common/hof';\nimport { Param } from '../params/param';\n/**\n * A node in a [[TreeChanges]] path\n *\n * For a [[TreeChanges]] path, this class holds the stateful information for a single node in the path.\n * Each PathNode corresponds to a state being entered, exited, or retained.\n * The stateful information includes parameter values and resolve data.\n */\nvar PathNode = /** @class */ (function () {\n    function PathNode(stateOrNode) {\n        if (stateOrNode instanceof PathNode) {\n            var node = stateOrNode;\n            this.state = node.state;\n            this.paramSchema = node.paramSchema.slice();\n            this.paramValues = extend({}, node.paramValues);\n            this.resolvables = node.resolvables.slice();\n            this.views = node.views && node.views.slice();\n        }\n        else {\n            var state = stateOrNode;\n            this.state = state;\n            this.paramSchema = state.parameters({ inherit: false });\n            this.paramValues = {};\n            this.resolvables = state.resolvables.map(function (res) { return res.clone(); });\n        }\n    }\n    PathNode.prototype.clone = function () {\n        return new PathNode(this);\n    };\n    /** Sets [[paramValues]] for the node, from the values of an object hash */\n    PathNode.prototype.applyRawParams = function (params) {\n        var getParamVal = function (paramDef) { return [paramDef.id, paramDef.value(params[paramDef.id])]; };\n        this.paramValues = this.paramSchema.reduce(function (memo, pDef) { return applyPairs(memo, getParamVal(pDef)); }, {});\n        return this;\n    };\n    /** Gets a specific [[Param]] metadata that belongs to the node */\n    PathNode.prototype.parameter = function (name) {\n        return find(this.paramSchema, propEq('id', name));\n    };\n    /**\n     * @returns true if the state and parameter values for another PathNode are\n     * equal to the state and param values for this PathNode\n     */\n    PathNode.prototype.equals = function (node, paramsFn) {\n        var diff = this.diff(node, paramsFn);\n        return diff && diff.length === 0;\n    };\n    /**\n     * Finds Params with different parameter values on another PathNode.\n     *\n     * Given another node (of the same state), finds the parameter values which differ.\n     * Returns the [[Param]] (schema objects) whose parameter values differ.\n     *\n     * Given another node for a different state, returns `false`\n     *\n     * @param node The node to compare to\n     * @param paramsFn A function that returns which parameters should be compared.\n     * @returns The [[Param]]s which differ, or null if the two nodes are for different states\n     */\n    PathNode.prototype.diff = function (node, paramsFn) {\n        if (this.state !== node.state)\n            return false;\n        var params = paramsFn ? paramsFn(this) : this.paramSchema;\n        return Param.changed(params, this.paramValues, node.paramValues);\n    };\n    /**\n     * Returns a clone of the PathNode\n     * @deprecated use instance method `node.clone()`\n     */\n    PathNode.clone = function (node) { return node.clone(); };\n    return PathNode;\n}());\nexport { PathNode };\n","import { extend, find, pick, omit, tail, mergeR, values, unnestR, inArray, arrayTuples, } from '../common/common';\nimport { prop, propEq } from '../common/hof';\nimport { TargetState } from '../state/targetState';\nimport { PathNode } from './pathNode';\n/**\n * This class contains functions which convert TargetStates, Nodes and paths from one type to another.\n */\nvar PathUtils = /** @class */ (function () {\n    function PathUtils() {\n    }\n    /** Given a PathNode[], create an TargetState */\n    PathUtils.makeTargetState = function (registry, path) {\n        var state = tail(path).state;\n        return new TargetState(registry, state, path.map(prop('paramValues')).reduce(mergeR, {}), {});\n    };\n    PathUtils.buildPath = function (targetState) {\n        var toParams = targetState.params();\n        return targetState.$state().path.map(function (state) { return new PathNode(state).applyRawParams(toParams); });\n    };\n    /** Given a fromPath: PathNode[] and a TargetState, builds a toPath: PathNode[] */\n    PathUtils.buildToPath = function (fromPath, targetState) {\n        var toPath = PathUtils.buildPath(targetState);\n        if (targetState.options().inherit) {\n            return PathUtils.inheritParams(fromPath, toPath, Object.keys(targetState.params()));\n        }\n        return toPath;\n    };\n    /**\n     * Creates ViewConfig objects and adds to nodes.\n     *\n     * On each [[PathNode]], creates ViewConfig objects from the views: property of the node's state\n     */\n    PathUtils.applyViewConfigs = function ($view, path, states) {\n        // Only apply the viewConfigs to the nodes for the given states\n        path\n            .filter(function (node) { return inArray(states, node.state); })\n            .forEach(function (node) {\n            var viewDecls = values(node.state.views || {});\n            var subPath = PathUtils.subPath(path, function (n) { return n === node; });\n            var viewConfigs = viewDecls.map(function (view) { return $view.createViewConfig(subPath, view); });\n            node.views = viewConfigs.reduce(unnestR, []);\n        });\n    };\n    /**\n     * Given a fromPath and a toPath, returns a new to path which inherits parameters from the fromPath\n     *\n     * For a parameter in a node to be inherited from the from path:\n     * - The toPath's node must have a matching node in the fromPath (by state).\n     * - The parameter name must not be found in the toKeys parameter array.\n     *\n     * Note: the keys provided in toKeys are intended to be those param keys explicitly specified by some\n     * caller, for instance, $state.transitionTo(..., toParams).  If a key was found in toParams,\n     * it is not inherited from the fromPath.\n     */\n    PathUtils.inheritParams = function (fromPath, toPath, toKeys) {\n        if (toKeys === void 0) { toKeys = []; }\n        function nodeParamVals(path, state) {\n            var node = find(path, propEq('state', state));\n            return extend({}, node && node.paramValues);\n        }\n        var noInherit = fromPath\n            .map(function (node) { return node.paramSchema; })\n            .reduce(unnestR, [])\n            .filter(function (param) { return !param.inherit; })\n            .map(prop('id'));\n        /**\n         * Given an [[PathNode]] \"toNode\", return a new [[PathNode]] with param values inherited from the\n         * matching node in fromPath.  Only inherit keys that aren't found in \"toKeys\" from the node in \"fromPath\"\"\n         */\n        function makeInheritedParamsNode(toNode) {\n            // All param values for the node (may include default key/vals, when key was not found in toParams)\n            var toParamVals = extend({}, toNode && toNode.paramValues);\n            // limited to only those keys found in toParams\n            var incomingParamVals = pick(toParamVals, toKeys);\n            toParamVals = omit(toParamVals, toKeys);\n            var fromParamVals = omit(nodeParamVals(fromPath, toNode.state) || {}, noInherit);\n            // extend toParamVals with any fromParamVals, then override any of those those with incomingParamVals\n            var ownParamVals = extend(toParamVals, fromParamVals, incomingParamVals);\n            return new PathNode(toNode.state).applyRawParams(ownParamVals);\n        }\n        // The param keys specified by the incoming toParams\n        return toPath.map(makeInheritedParamsNode);\n    };\n    /**\n     * Computes the tree changes (entering, exiting) between a fromPath and toPath.\n     */\n    PathUtils.treeChanges = function (fromPath, toPath, reloadState) {\n        var max = Math.min(fromPath.length, toPath.length);\n        var keep = 0;\n        var nodesMatch = function (node1, node2) { return node1.equals(node2, PathUtils.nonDynamicParams); };\n        while (keep < max && fromPath[keep].state !== reloadState && nodesMatch(fromPath[keep], toPath[keep])) {\n            keep++;\n        }\n        /** Given a retained node, return a new node which uses the to node's param values */\n        function applyToParams(retainedNode, idx) {\n            var cloned = retainedNode.clone();\n            cloned.paramValues = toPath[idx].paramValues;\n            return cloned;\n        }\n        var from, retained, exiting, entering, to;\n        from = fromPath;\n        retained = from.slice(0, keep);\n        exiting = from.slice(keep);\n        // Create a new retained path (with shallow copies of nodes) which have the params of the toPath mapped\n        var retainedWithToParams = retained.map(applyToParams);\n        entering = toPath.slice(keep);\n        to = retainedWithToParams.concat(entering);\n        return { from: from, to: to, retained: retained, retainedWithToParams: retainedWithToParams, exiting: exiting, entering: entering };\n    };\n    /**\n     * Returns a new path which is: the subpath of the first path which matches the second path.\n     *\n     * The new path starts from root and contains any nodes that match the nodes in the second path.\n     * It stops before the first non-matching node.\n     *\n     * Nodes are compared using their state property and their parameter values.\n     * If a `paramsFn` is provided, only the [[Param]] returned by the function will be considered when comparing nodes.\n     *\n     * @param pathA the first path\n     * @param pathB the second path\n     * @param paramsFn a function which returns the parameters to consider when comparing\n     *\n     * @returns an array of PathNodes from the first path which match the nodes in the second path\n     */\n    PathUtils.matching = function (pathA, pathB, paramsFn) {\n        var done = false;\n        var tuples = arrayTuples(pathA, pathB);\n        return tuples.reduce(function (matching, _a) {\n            var nodeA = _a[0], nodeB = _a[1];\n            done = done || !nodeA.equals(nodeB, paramsFn);\n            return done ? matching : matching.concat(nodeA);\n        }, []);\n    };\n    /**\n     * Returns true if two paths are identical.\n     *\n     * @param pathA\n     * @param pathB\n     * @param paramsFn a function which returns the parameters to consider when comparing\n     * @returns true if the the states and parameter values for both paths are identical\n     */\n    PathUtils.equals = function (pathA, pathB, paramsFn) {\n        return pathA.length === pathB.length && PathUtils.matching(pathA, pathB, paramsFn).length === pathA.length;\n    };\n    /**\n     * Return a subpath of a path, which stops at the first matching node\n     *\n     * Given an array of nodes, returns a subset of the array starting from the first node,\n     * stopping when the first node matches the predicate.\n     *\n     * @param path a path of [[PathNode]]s\n     * @param predicate a [[Predicate]] fn that matches [[PathNode]]s\n     * @returns a subpath up to the matching node, or undefined if no match is found\n     */\n    PathUtils.subPath = function (path, predicate) {\n        var node = find(path, predicate);\n        var elementIdx = path.indexOf(node);\n        return elementIdx === -1 ? undefined : path.slice(0, elementIdx + 1);\n    };\n    PathUtils.nonDynamicParams = function (node) {\n        return node.state.parameters({ inherit: false }).filter(function (param) { return !param.dynamic; });\n    };\n    /** Gets the raw parameter values from a path */\n    PathUtils.paramValues = function (path) { return path.reduce(function (acc, node) { return extend(acc, node.paramValues); }, {}); };\n    return PathUtils;\n}());\nexport { PathUtils };\n","export var resolvePolicies = {\n    when: {\n        LAZY: 'LAZY',\n        EAGER: 'EAGER',\n    },\n    async: {\n        WAIT: 'WAIT',\n        NOWAIT: 'NOWAIT',\n    },\n};\n","import { extend, identity } from '../common/common';\nimport { services } from '../common/coreservices';\nimport { trace } from '../common/trace';\nimport { stringify } from '../common/strings';\nimport { isFunction, isObject } from '../common/predicates';\nimport { isNullOrUndefined } from '../common/predicates';\n// TODO: explicitly make this user configurable\nexport var defaultResolvePolicy = {\n    when: 'LAZY',\n    async: 'WAIT',\n};\n/**\n * The basic building block for the resolve system.\n *\n * Resolvables encapsulate a state's resolve's resolveFn, the resolveFn's declared dependencies, the wrapped (.promise),\n * and the unwrapped-when-complete (.data) result of the resolveFn.\n *\n * Resolvable.get() either retrieves the Resolvable's existing promise, or else invokes resolve() (which invokes the\n * resolveFn) and returns the resulting promise.\n *\n * Resolvable.get() and Resolvable.resolve() both execute within a context path, which is passed as the first\n * parameter to those fns.\n */\nvar Resolvable = /** @class */ (function () {\n    function Resolvable(arg1, resolveFn, deps, policy, data) {\n        this.resolved = false;\n        this.promise = undefined;\n        if (arg1 instanceof Resolvable) {\n            extend(this, arg1);\n        }\n        else if (isFunction(resolveFn)) {\n            if (isNullOrUndefined(arg1))\n                throw new Error('new Resolvable(): token argument is required');\n            if (!isFunction(resolveFn))\n                throw new Error('new Resolvable(): resolveFn argument must be a function');\n            this.token = arg1;\n            this.policy = policy;\n            this.resolveFn = resolveFn;\n            this.deps = deps || [];\n            this.data = data;\n            this.resolved = data !== undefined;\n            this.promise = this.resolved ? services.$q.when(this.data) : undefined;\n        }\n        else if (isObject(arg1) && arg1.token && (arg1.hasOwnProperty('resolveFn') || arg1.hasOwnProperty('data'))) {\n            var literal = arg1;\n            return new Resolvable(literal.token, literal.resolveFn, literal.deps, literal.policy, literal.data);\n        }\n    }\n    Resolvable.prototype.getPolicy = function (state) {\n        var thisPolicy = this.policy || {};\n        var statePolicy = (state && state.resolvePolicy) || {};\n        return {\n            when: thisPolicy.when || statePolicy.when || defaultResolvePolicy.when,\n            async: thisPolicy.async || statePolicy.async || defaultResolvePolicy.async,\n        };\n    };\n    /**\n     * Asynchronously resolve this Resolvable's data\n     *\n     * Given a ResolveContext that this Resolvable is found in:\n     * Wait for this Resolvable's dependencies, then invoke this Resolvable's function\n     * and update the Resolvable's state\n     */\n    Resolvable.prototype.resolve = function (resolveContext, trans) {\n        var _this = this;\n        var $q = services.$q;\n        // Gets all dependencies from ResolveContext and wait for them to be resolved\n        var getResolvableDependencies = function () {\n            return $q.all(resolveContext.getDependencies(_this).map(function (resolvable) { return resolvable.get(resolveContext, trans); }));\n        };\n        // Invokes the resolve function passing the resolved dependencies as arguments\n        var invokeResolveFn = function (resolvedDeps) { return _this.resolveFn.apply(null, resolvedDeps); };\n        var node = resolveContext.findNode(this);\n        var state = node && node.state;\n        var asyncPolicy = this.getPolicy(state).async;\n        var customAsyncPolicy = isFunction(asyncPolicy) ? asyncPolicy : identity;\n        // After the final value has been resolved, update the state of the Resolvable\n        var applyResolvedValue = function (resolvedValue) {\n            _this.data = resolvedValue;\n            _this.resolved = true;\n            _this.resolveFn = null;\n            trace.traceResolvableResolved(_this, trans);\n            return _this.data;\n        };\n        // Sets the promise property first, then getsResolvableDependencies in the context of the promise chain. Always waits one tick.\n        return (this.promise = $q\n            .when()\n            .then(getResolvableDependencies)\n            .then(invokeResolveFn)\n            .then(customAsyncPolicy)\n            .then(applyResolvedValue));\n    };\n    /**\n     * Gets a promise for this Resolvable's data.\n     *\n     * Fetches the data and returns a promise.\n     * Returns the existing promise if it has already been fetched once.\n     */\n    Resolvable.prototype.get = function (resolveContext, trans) {\n        return this.promise || this.resolve(resolveContext, trans);\n    };\n    Resolvable.prototype.toString = function () {\n        return \"Resolvable(token: \" + stringify(this.token) + \", requires: [\" + this.deps.map(stringify) + \"])\";\n    };\n    Resolvable.prototype.clone = function () {\n        return new Resolvable(this);\n    };\n    Resolvable.fromData = function (token, data) { return new Resolvable(token, function () { return data; }, null, null, data); };\n    return Resolvable;\n}());\nexport { Resolvable };\n","import { find, tail, uniqR, unnestR, inArray } from '../common/common';\nimport { propEq, not } from '../common/hof';\nimport { trace } from '../common/trace';\nimport { services } from '../common/coreservices';\nimport { resolvePolicies } from './interface';\nimport { Resolvable } from './resolvable';\nimport { PathUtils } from '../path/pathUtils';\nimport { stringify } from '../common/strings';\nimport { isUndefined } from '../common';\nvar whens = resolvePolicies.when;\nvar ALL_WHENS = [whens.EAGER, whens.LAZY];\nvar EAGER_WHENS = [whens.EAGER];\n// tslint:disable-next-line:no-inferrable-types\nexport var NATIVE_INJECTOR_TOKEN = 'Native Injector';\n/**\n * Encapsulates Dependency Injection for a path of nodes\n *\n * UI-Router states are organized as a tree.\n * A nested state has a path of ancestors to the root of the tree.\n * When a state is being activated, each element in the path is wrapped as a [[PathNode]].\n * A `PathNode` is a stateful object that holds things like parameters and resolvables for the state being activated.\n *\n * The ResolveContext closes over the [[PathNode]]s, and provides DI for the last node in the path.\n */\nvar ResolveContext = /** @class */ (function () {\n    function ResolveContext(_path) {\n        this._path = _path;\n    }\n    /** Gets all the tokens found in the resolve context, de-duplicated */\n    ResolveContext.prototype.getTokens = function () {\n        return this._path.reduce(function (acc, node) { return acc.concat(node.resolvables.map(function (r) { return r.token; })); }, []).reduce(uniqR, []);\n    };\n    /**\n     * Gets the Resolvable that matches the token\n     *\n     * Gets the last Resolvable that matches the token in this context, or undefined.\n     * Throws an error if it doesn't exist in the ResolveContext\n     */\n    ResolveContext.prototype.getResolvable = function (token) {\n        var matching = this._path\n            .map(function (node) { return node.resolvables; })\n            .reduce(unnestR, [])\n            .filter(function (r) { return r.token === token; });\n        return tail(matching);\n    };\n    /** Returns the [[ResolvePolicy]] for the given [[Resolvable]] */\n    ResolveContext.prototype.getPolicy = function (resolvable) {\n        var node = this.findNode(resolvable);\n        return resolvable.getPolicy(node.state);\n    };\n    /**\n     * Returns a ResolveContext that includes a portion of this one\n     *\n     * Given a state, this method creates a new ResolveContext from this one.\n     * The new context starts at the first node (root) and stops at the node for the `state` parameter.\n     *\n     * #### Why\n     *\n     * When a transition is created, the nodes in the \"To Path\" are injected from a ResolveContext.\n     * A ResolveContext closes over a path of [[PathNode]]s and processes the resolvables.\n     * The \"To State\" can inject values from its own resolvables, as well as those from all its ancestor state's (node's).\n     * This method is used to create a narrower context when injecting ancestor nodes.\n     *\n     * @example\n     * `let ABCD = new ResolveContext([A, B, C, D]);`\n     *\n     * Given a path `[A, B, C, D]`, where `A`, `B`, `C` and `D` are nodes for states `a`, `b`, `c`, `d`:\n     * When injecting `D`, `D` should have access to all resolvables from `A`, `B`, `C`, `D`.\n     * However, `B` should only be able to access resolvables from `A`, `B`.\n     *\n     * When resolving for the `B` node, first take the full \"To Path\" Context `[A,B,C,D]` and limit to the subpath `[A,B]`.\n     * `let AB = ABCD.subcontext(a)`\n     */\n    ResolveContext.prototype.subContext = function (state) {\n        return new ResolveContext(PathUtils.subPath(this._path, function (node) { return node.state === state; }));\n    };\n    /**\n     * Adds Resolvables to the node that matches the state\n     *\n     * This adds a [[Resolvable]] (generally one created on the fly; not declared on a [[StateDeclaration.resolve]] block).\n     * The resolvable is added to the node matching the `state` parameter.\n     *\n     * These new resolvables are not automatically fetched.\n     * The calling code should either fetch them, fetch something that depends on them,\n     * or rely on [[resolvePath]] being called when some state is being entered.\n     *\n     * Note: each resolvable's [[ResolvePolicy]] is merged with the state's policy, and the global default.\n     *\n     * @param newResolvables the new Resolvables\n     * @param state Used to find the node to put the resolvable on\n     */\n    ResolveContext.prototype.addResolvables = function (newResolvables, state) {\n        var node = find(this._path, propEq('state', state));\n        var keys = newResolvables.map(function (r) { return r.token; });\n        node.resolvables = node.resolvables.filter(function (r) { return keys.indexOf(r.token) === -1; }).concat(newResolvables);\n    };\n    /**\n     * Returns a promise for an array of resolved path Element promises\n     *\n     * @param when\n     * @param trans\n     * @returns {Promise<any>|any}\n     */\n    ResolveContext.prototype.resolvePath = function (when, trans) {\n        var _this = this;\n        if (when === void 0) { when = 'LAZY'; }\n        // This option determines which 'when' policy Resolvables we are about to fetch.\n        var whenOption = inArray(ALL_WHENS, when) ? when : 'LAZY';\n        // If the caller specified EAGER, only the EAGER Resolvables are fetched.\n        // if the caller specified LAZY, both EAGER and LAZY Resolvables are fetched.`\n        var matchedWhens = whenOption === resolvePolicies.when.EAGER ? EAGER_WHENS : ALL_WHENS;\n        // get the subpath to the state argument, if provided\n        trace.traceResolvePath(this._path, when, trans);\n        var matchesPolicy = function (acceptedVals, whenOrAsync) { return function (resolvable) {\n            return inArray(acceptedVals, _this.getPolicy(resolvable)[whenOrAsync]);\n        }; };\n        // Trigger all the (matching) Resolvables in the path\n        // Reduce all the \"WAIT\" Resolvables into an array\n        var promises = this._path.reduce(function (acc, node) {\n            var nodeResolvables = node.resolvables.filter(matchesPolicy(matchedWhens, 'when'));\n            var nowait = nodeResolvables.filter(matchesPolicy(['NOWAIT'], 'async'));\n            var wait = nodeResolvables.filter(not(matchesPolicy(['NOWAIT'], 'async')));\n            // For the matching Resolvables, start their async fetch process.\n            var subContext = _this.subContext(node.state);\n            var getResult = function (r) {\n                return r\n                    .get(subContext, trans)\n                    // Return a tuple that includes the Resolvable's token\n                    .then(function (value) { return ({ token: r.token, value: value }); });\n            };\n            nowait.forEach(getResult);\n            return acc.concat(wait.map(getResult));\n        }, []);\n        // Wait for all the \"WAIT\" resolvables\n        return services.$q.all(promises);\n    };\n    ResolveContext.prototype.injector = function () {\n        return this._injector || (this._injector = new UIInjectorImpl(this));\n    };\n    ResolveContext.prototype.findNode = function (resolvable) {\n        return find(this._path, function (node) { return inArray(node.resolvables, resolvable); });\n    };\n    /**\n     * Gets the async dependencies of a Resolvable\n     *\n     * Given a Resolvable, returns its dependencies as a Resolvable[]\n     */\n    ResolveContext.prototype.getDependencies = function (resolvable) {\n        var _this = this;\n        var node = this.findNode(resolvable);\n        // Find which other resolvables are \"visible\" to the `resolvable` argument\n        // subpath stopping at resolvable's node, or the whole path (if the resolvable isn't in the path)\n        var subPath = PathUtils.subPath(this._path, function (x) { return x === node; }) || this._path;\n        var availableResolvables = subPath\n            .reduce(function (acc, _node) { return acc.concat(_node.resolvables); }, []) // all of subpath's resolvables\n            .filter(function (res) { return res !== resolvable; }); // filter out the `resolvable` argument\n        var getDependency = function (token) {\n            var matching = availableResolvables.filter(function (r) { return r.token === token; });\n            if (matching.length)\n                return tail(matching);\n            var fromInjector = _this.injector().getNative(token);\n            if (isUndefined(fromInjector)) {\n                throw new Error('Could not find Dependency Injection token: ' + stringify(token));\n            }\n            return new Resolvable(token, function () { return fromInjector; }, [], fromInjector);\n        };\n        return resolvable.deps.map(getDependency);\n    };\n    return ResolveContext;\n}());\nexport { ResolveContext };\n/** @internal */\nvar UIInjectorImpl = /** @class */ (function () {\n    function UIInjectorImpl(context) {\n        this.context = context;\n        this.native = this.get(NATIVE_INJECTOR_TOKEN) || services.$injector;\n    }\n    UIInjectorImpl.prototype.get = function (token) {\n        var resolvable = this.context.getResolvable(token);\n        if (resolvable) {\n            if (this.context.getPolicy(resolvable).async === 'NOWAIT') {\n                return resolvable.get(this.context);\n            }\n            if (!resolvable.resolved) {\n                throw new Error('Resolvable async .get() not complete:' + stringify(resolvable.token));\n            }\n            return resolvable.data;\n        }\n        return this.getNative(token);\n    };\n    UIInjectorImpl.prototype.getAsync = function (token) {\n        var resolvable = this.context.getResolvable(token);\n        if (resolvable)\n            return resolvable.get(this.context);\n        return services.$q.when(this.native.get(token));\n    };\n    UIInjectorImpl.prototype.getNative = function (token) {\n        return this.native && this.native.get(token);\n    };\n    return UIInjectorImpl;\n}());\n","import { UrlMatcherFactory } from './url/urlMatcherFactory';\nimport { UrlRouter } from './url/urlRouter';\nimport { TransitionService } from './transition/transitionService';\nimport { ViewService } from './view/view';\nimport { StateRegistry } from './state/stateRegistry';\nimport { StateService } from './state/stateService';\nimport { UIRouterGlobals } from './globals';\nimport { values, removeFrom } from './common/common';\nimport { isFunction } from './common/predicates';\nimport { UrlService } from './url/urlService';\nimport { trace } from './common/trace';\nimport { makeStub } from './common';\n/** @internal */\nvar _routerInstance = 0;\n/** @internal */\nvar locSvcFns = ['url', 'path', 'search', 'hash', 'onChange'];\n/** @internal */\nvar locCfgFns = ['port', 'protocol', 'host', 'baseHref', 'html5Mode', 'hashPrefix'];\n/** @internal */\nvar locationServiceStub = makeStub('LocationServices', locSvcFns);\n/** @internal */\nvar locationConfigStub = makeStub('LocationConfig', locCfgFns);\n/**\n * An instance of UI-Router.\n *\n * This object contains references to service APIs which define your application's routing behavior.\n */\nvar UIRouter = /** @class */ (function () {\n    /**\n     * Creates a new `UIRouter` object\n     *\n     * @param locationService a [[LocationServices]] implementation\n     * @param locationConfig a [[LocationConfig]] implementation\n     * @internal\n     */\n    function UIRouter(locationService, locationConfig) {\n        if (locationService === void 0) { locationService = locationServiceStub; }\n        if (locationConfig === void 0) { locationConfig = locationConfigStub; }\n        this.locationService = locationService;\n        this.locationConfig = locationConfig;\n        /** @internal */ this.$id = _routerInstance++;\n        /** @internal */ this._disposed = false;\n        /** @internal */ this._disposables = [];\n        /** Enable/disable tracing to the javascript console */\n        this.trace = trace;\n        /** Provides services related to ui-view synchronization */\n        this.viewService = new ViewService(this);\n        /** An object that contains global router state, such as the current state and params */\n        this.globals = new UIRouterGlobals();\n        /** A service that exposes global Transition Hooks */\n        this.transitionService = new TransitionService(this);\n        /**\n         * Deprecated for public use. Use [[urlService]] instead.\n         * @deprecated Use [[urlService]] instead\n         */\n        this.urlMatcherFactory = new UrlMatcherFactory(this);\n        /**\n         * Deprecated for public use. Use [[urlService]] instead.\n         * @deprecated Use [[urlService]] instead\n         */\n        this.urlRouter = new UrlRouter(this);\n        /** Provides services related to the URL */\n        this.urlService = new UrlService(this);\n        /** Provides a registry for states, and related registration services */\n        this.stateRegistry = new StateRegistry(this);\n        /** Provides services related to states */\n        this.stateService = new StateService(this);\n        /** @internal plugin instances are registered here */\n        this._plugins = {};\n        this.viewService._pluginapi._rootViewContext(this.stateRegistry.root());\n        this.globals.$current = this.stateRegistry.root();\n        this.globals.current = this.globals.$current.self;\n        this.disposable(this.globals);\n        this.disposable(this.stateService);\n        this.disposable(this.stateRegistry);\n        this.disposable(this.transitionService);\n        this.disposable(this.urlService);\n        this.disposable(locationService);\n        this.disposable(locationConfig);\n    }\n    /** Registers an object to be notified when the router is disposed */\n    UIRouter.prototype.disposable = function (disposable) {\n        this._disposables.push(disposable);\n    };\n    /**\n     * Disposes this router instance\n     *\n     * When called, clears resources retained by the router by calling `dispose(this)` on all\n     * registered [[disposable]] objects.\n     *\n     * Or, if a `disposable` object is provided, calls `dispose(this)` on that object only.\n     *\n     * @internal\n     * @param disposable (optional) the disposable to dispose\n     */\n    UIRouter.prototype.dispose = function (disposable) {\n        var _this = this;\n        if (disposable && isFunction(disposable.dispose)) {\n            disposable.dispose(this);\n            return undefined;\n        }\n        this._disposed = true;\n        this._disposables.slice().forEach(function (d) {\n            try {\n                typeof d.dispose === 'function' && d.dispose(_this);\n                removeFrom(_this._disposables, d);\n            }\n            catch (ignored) { }\n        });\n    };\n    /**\n     * Adds a plugin to UI-Router\n     *\n     * This method adds a UI-Router Plugin.\n     * A plugin can enhance or change UI-Router behavior using any public API.\n     *\n     * #### Example:\n     * ```js\n     * import { MyCoolPlugin } from \"ui-router-cool-plugin\";\n     *\n     * var plugin = router.addPlugin(MyCoolPlugin);\n     * ```\n     *\n     * ### Plugin authoring\n     *\n     * A plugin is simply a class (or constructor function) which accepts a [[UIRouter]] instance and (optionally) an options object.\n     *\n     * The plugin can implement its functionality using any of the public APIs of [[UIRouter]].\n     * For example, it may configure router options or add a Transition Hook.\n     *\n     * The plugin can then be published as a separate module.\n     *\n     * #### Example:\n     * ```js\n     * export class MyAuthPlugin implements UIRouterPlugin {\n     *   constructor(router: UIRouter, options: any) {\n     *     this.name = \"MyAuthPlugin\";\n     *     let $transitions = router.transitionService;\n     *     let $state = router.stateService;\n     *\n     *     let authCriteria = {\n     *       to: (state) => state.data && state.data.requiresAuth\n     *     };\n     *\n     *     function authHook(transition: Transition) {\n     *       let authService = transition.injector().get('AuthService');\n     *       if (!authService.isAuthenticated()) {\n     *         return $state.target('login');\n     *       }\n     *     }\n     *\n     *     $transitions.onStart(authCriteria, authHook);\n     *   }\n     * }\n     * ```\n     *\n     * @param plugin one of:\n     *        - a plugin class which implements [[UIRouterPlugin]]\n     *        - a constructor function for a [[UIRouterPlugin]] which accepts a [[UIRouter]] instance\n     *        - a factory function which accepts a [[UIRouter]] instance and returns a [[UIRouterPlugin]] instance\n     * @param options options to pass to the plugin class/factory\n     * @returns the registered plugin instance\n     */\n    UIRouter.prototype.plugin = function (plugin, options) {\n        if (options === void 0) { options = {}; }\n        var pluginInstance = new plugin(this, options);\n        if (!pluginInstance.name)\n            throw new Error('Required property `name` missing on plugin: ' + pluginInstance);\n        this._disposables.push(pluginInstance);\n        return (this._plugins[pluginInstance.name] = pluginInstance);\n    };\n    UIRouter.prototype.getPlugin = function (pluginName) {\n        return pluginName ? this._plugins[pluginName] : values(this._plugins);\n    };\n    return UIRouter;\n}());\nexport { UIRouter };\n","import { applyPairs, extend, identity, inherit, mapObj, noop, omit, tail, values, copy } from '../common/common';\nimport { isArray, isDefined, isFunction, isString } from '../common/predicates';\nimport { stringify } from '../common/strings';\nimport { is, pattern, pipe, prop, val } from '../common/hof';\nimport { Resolvable } from '../resolve/resolvable';\nimport { services } from '../common/coreservices';\nvar parseUrl = function (url) {\n    if (!isString(url))\n        return false;\n    var root = url.charAt(0) === '^';\n    return { val: root ? url.substring(1) : url, root: root };\n};\nfunction nameBuilder(state) {\n    return state.name;\n}\nfunction selfBuilder(state) {\n    state.self.$$state = function () { return state; };\n    return state.self;\n}\nfunction dataBuilder(state) {\n    if (state.parent && state.parent.data) {\n        state.data = state.self.data = inherit(state.parent.data, state.data);\n    }\n    return state.data;\n}\nvar getUrlBuilder = function ($urlMatcherFactoryProvider, root) {\n    return function urlBuilder(stateObject) {\n        var stateDec = stateObject.self;\n        // For future states, i.e., states whose name ends with `.**`,\n        // match anything that starts with the url prefix\n        if (stateDec && stateDec.url && stateDec.name && stateDec.name.match(/\\.\\*\\*$/)) {\n            var newStateDec = {};\n            copy(stateDec, newStateDec);\n            newStateDec.url += '{remainder:any}'; // match any path (.*)\n            stateDec = newStateDec;\n        }\n        var parent = stateObject.parent;\n        var parsed = parseUrl(stateDec.url);\n        var url = !parsed ? stateDec.url : $urlMatcherFactoryProvider.compile(parsed.val, { state: stateDec });\n        if (!url)\n            return null;\n        if (!$urlMatcherFactoryProvider.isMatcher(url))\n            throw new Error(\"Invalid url '\" + url + \"' in state '\" + stateObject + \"'\");\n        return parsed && parsed.root ? url : ((parent && parent.navigable) || root()).url.append(url);\n    };\n};\nvar getNavigableBuilder = function (isRoot) {\n    return function navigableBuilder(state) {\n        return !isRoot(state) && state.url ? state : state.parent ? state.parent.navigable : null;\n    };\n};\nvar getParamsBuilder = function (paramFactory) {\n    return function paramsBuilder(state) {\n        var makeConfigParam = function (config, id) { return paramFactory.fromConfig(id, null, state.self); };\n        var urlParams = (state.url && state.url.parameters({ inherit: false })) || [];\n        var nonUrlParams = values(mapObj(omit(state.params || {}, urlParams.map(prop('id'))), makeConfigParam));\n        return urlParams\n            .concat(nonUrlParams)\n            .map(function (p) { return [p.id, p]; })\n            .reduce(applyPairs, {});\n    };\n};\nfunction pathBuilder(state) {\n    return state.parent ? state.parent.path.concat(state) : /*root*/ [state];\n}\nfunction includesBuilder(state) {\n    var includes = state.parent ? extend({}, state.parent.includes) : {};\n    includes[state.name] = true;\n    return includes;\n}\n/**\n * This is a [[StateBuilder.builder]] function for the `resolve:` block on a [[StateDeclaration]].\n *\n * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder\n * validates the `resolve` property and converts it to a [[Resolvable]] array.\n *\n * resolve: input value can be:\n *\n * {\n *   // analyzed but not injected\n *   myFooResolve: function() { return \"myFooData\"; },\n *\n *   // function.toString() parsed, \"DependencyName\" dep as string (not min-safe)\n *   myBarResolve: function(DependencyName) { return DependencyName.fetchSomethingAsPromise() },\n *\n *   // Array split; \"DependencyName\" dep as string\n *   myBazResolve: [ \"DependencyName\", function(dep) { return dep.fetchSomethingAsPromise() },\n *\n *   // Array split; DependencyType dep as token (compared using ===)\n *   myQuxResolve: [ DependencyType, function(dep) { return dep.fetchSometingAsPromise() },\n *\n *   // val.$inject used as deps\n *   // where:\n *   //     corgeResolve.$inject = [\"DependencyName\"];\n *   //     function corgeResolve(dep) { dep.fetchSometingAsPromise() }\n *   // then \"DependencyName\" dep as string\n *   myCorgeResolve: corgeResolve,\n *\n *  // inject service by name\n *  // When a string is found, desugar creating a resolve that injects the named service\n *   myGraultResolve: \"SomeService\"\n * }\n *\n * or:\n *\n * [\n *   new Resolvable(\"myFooResolve\", function() { return \"myFooData\" }),\n *   new Resolvable(\"myBarResolve\", function(dep) { return dep.fetchSomethingAsPromise() }, [ \"DependencyName\" ]),\n *   { provide: \"myBazResolve\", useFactory: function(dep) { dep.fetchSomethingAsPromise() }, deps: [ \"DependencyName\" ] }\n * ]\n */\nexport function resolvablesBuilder(state) {\n    /** convert resolve: {} and resolvePolicy: {} objects to an array of tuples */\n    var objects2Tuples = function (resolveObj, resolvePolicies) {\n        return Object.keys(resolveObj || {}).map(function (token) { return ({\n            token: token,\n            val: resolveObj[token],\n            deps: undefined,\n            policy: resolvePolicies[token],\n        }); });\n    };\n    /** fetch DI annotations from a function or ng1-style array */\n    var annotate = function (fn) {\n        var $injector = services.$injector;\n        // ng1 doesn't have an $injector until runtime.\n        // If the $injector doesn't exist, use \"deferred\" literal as a\n        // marker indicating they should be annotated when runtime starts\n        return fn['$inject'] || ($injector && $injector.annotate(fn, $injector.strictDi)) || 'deferred';\n    };\n    /** true if the object has both `token` and `resolveFn`, and is probably a [[ResolveLiteral]] */\n    var isResolveLiteral = function (obj) { return !!(obj.token && obj.resolveFn); };\n    /** true if the object looks like a provide literal, or a ng2 Provider */\n    var isLikeNg2Provider = function (obj) {\n        return !!((obj.provide || obj.token) && (obj.useValue || obj.useFactory || obj.useExisting || obj.useClass));\n    };\n    /** true if the object looks like a tuple from obj2Tuples */\n    var isTupleFromObj = function (obj) {\n        return !!(obj && obj.val && (isString(obj.val) || isArray(obj.val) || isFunction(obj.val)));\n    };\n    /** extracts the token from a Provider or provide literal */\n    var getToken = function (p) { return p.provide || p.token; };\n    // prettier-ignore: Given a literal resolve or provider object, returns a Resolvable\n    var literal2Resolvable = pattern([\n        [prop('resolveFn'), function (p) { return new Resolvable(getToken(p), p.resolveFn, p.deps, p.policy); }],\n        [prop('useFactory'), function (p) { return new Resolvable(getToken(p), p.useFactory, p.deps || p.dependencies, p.policy); }],\n        [prop('useClass'), function (p) { return new Resolvable(getToken(p), function () { return new p.useClass(); }, [], p.policy); }],\n        [prop('useValue'), function (p) { return new Resolvable(getToken(p), function () { return p.useValue; }, [], p.policy, p.useValue); }],\n        [prop('useExisting'), function (p) { return new Resolvable(getToken(p), identity, [p.useExisting], p.policy); }],\n    ]);\n    // prettier-ignore\n    var tuple2Resolvable = pattern([\n        [pipe(prop('val'), isString), function (tuple) { return new Resolvable(tuple.token, identity, [tuple.val], tuple.policy); }],\n        [pipe(prop('val'), isArray), function (tuple) { return new Resolvable(tuple.token, tail(tuple.val), tuple.val.slice(0, -1), tuple.policy); }],\n        [pipe(prop('val'), isFunction), function (tuple) { return new Resolvable(tuple.token, tuple.val, annotate(tuple.val), tuple.policy); }],\n    ]);\n    // prettier-ignore\n    var item2Resolvable = pattern([\n        [is(Resolvable), function (r) { return r; }],\n        [isResolveLiteral, literal2Resolvable],\n        [isLikeNg2Provider, literal2Resolvable],\n        [isTupleFromObj, tuple2Resolvable],\n        [val(true), function (obj) { throw new Error('Invalid resolve value: ' + stringify(obj)); },],\n    ]);\n    // If resolveBlock is already an array, use it as-is.\n    // Otherwise, assume it's an object and convert to an Array of tuples\n    var decl = state.resolve;\n    var items = isArray(decl) ? decl : objects2Tuples(decl, state.resolvePolicy || {});\n    return items.map(item2Resolvable);\n}\n/**\n * A internal global service\n *\n * StateBuilder is a factory for the internal [[StateObject]] objects.\n *\n * When you register a state with the [[StateRegistry]], you register a plain old javascript object which\n * conforms to the [[StateDeclaration]] interface.  This factory takes that object and builds the corresponding\n * [[StateObject]] object, which has an API and is used internally.\n *\n * Custom properties or API may be added to the internal [[StateObject]] object by registering a decorator function\n * using the [[builder]] method.\n */\nvar StateBuilder = /** @class */ (function () {\n    function StateBuilder(matcher, urlMatcherFactory) {\n        this.matcher = matcher;\n        var self = this;\n        var root = function () { return matcher.find(''); };\n        var isRoot = function (state) { return state.name === ''; };\n        function parentBuilder(state) {\n            if (isRoot(state))\n                return null;\n            return matcher.find(self.parentName(state)) || root();\n        }\n        this.builders = {\n            name: [nameBuilder],\n            self: [selfBuilder],\n            parent: [parentBuilder],\n            data: [dataBuilder],\n            // Build a URLMatcher if necessary, either via a relative or absolute URL\n            url: [getUrlBuilder(urlMatcherFactory, root)],\n            // Keep track of the closest ancestor state that has a URL (i.e. is navigable)\n            navigable: [getNavigableBuilder(isRoot)],\n            params: [getParamsBuilder(urlMatcherFactory.paramFactory)],\n            // Each framework-specific ui-router implementation should define its own `views` builder\n            // e.g., src/ng1/statebuilders/views.ts\n            views: [],\n            // Keep a full path from the root down to this state as this is needed for state activation.\n            path: [pathBuilder],\n            // Speed up $state.includes() as it's used a lot\n            includes: [includesBuilder],\n            resolvables: [resolvablesBuilder],\n        };\n    }\n    StateBuilder.prototype.builder = function (name, fn) {\n        var builders = this.builders;\n        var array = builders[name] || [];\n        // Backwards compat: if only one builder exists, return it, else return whole arary.\n        if (isString(name) && !isDefined(fn))\n            return array.length > 1 ? array : array[0];\n        if (!isString(name) || !isFunction(fn))\n            return;\n        builders[name] = array;\n        builders[name].push(fn);\n        return function () { return builders[name].splice(builders[name].indexOf(fn, 1)) && null; };\n    };\n    /**\n     * Builds all of the properties on an essentially blank State object, returning a State object which has all its\n     * properties and API built.\n     *\n     * @param state an uninitialized State object\n     * @returns the built State object\n     */\n    StateBuilder.prototype.build = function (state) {\n        var _a = this, matcher = _a.matcher, builders = _a.builders;\n        var parent = this.parentName(state);\n        if (parent && !matcher.find(parent, undefined, false)) {\n            return null;\n        }\n        for (var key in builders) {\n            if (!builders.hasOwnProperty(key))\n                continue;\n            var chain = builders[key].reduce(function (parentFn, step) { return function (_state) { return step(_state, parentFn); }; }, noop);\n            state[key] = chain(state);\n        }\n        return state;\n    };\n    StateBuilder.prototype.parentName = function (state) {\n        // name = 'foo.bar.baz.**'\n        var name = state.name || '';\n        // segments = ['foo', 'bar', 'baz', '.**']\n        var segments = name.split('.');\n        // segments = ['foo', 'bar', 'baz']\n        var lastSegment = segments.pop();\n        // segments = ['foo', 'bar'] (ignore .** segment for future states)\n        if (lastSegment === '**')\n            segments.pop();\n        if (segments.length) {\n            if (state.parent) {\n                throw new Error(\"States that specify the 'parent:' property should not have a '.' in their name (\" + name + \")\");\n            }\n            // 'foo.bar'\n            return segments.join('.');\n        }\n        if (!state.parent)\n            return '';\n        return isString(state.parent) ? state.parent : state.parent.name;\n    };\n    StateBuilder.prototype.name = function (state) {\n        var name = state.name;\n        if (name.indexOf('.') !== -1 || !state.parent)\n            return name;\n        var parentName = isString(state.parent) ? state.parent : state.parent.name;\n        return parentName ? parentName + '.' + name : name;\n    };\n    return StateBuilder;\n}());\nexport { StateBuilder };\n","import { isString } from '../common/predicates';\nimport { values } from '../common/common';\nimport { safeConsole } from '../common/safeConsole';\nvar StateMatcher = /** @class */ (function () {\n    function StateMatcher(_states) {\n        this._states = _states;\n    }\n    StateMatcher.prototype.isRelative = function (stateName) {\n        stateName = stateName || '';\n        return stateName.indexOf('.') === 0 || stateName.indexOf('^') === 0;\n    };\n    StateMatcher.prototype.find = function (stateOrName, base, matchGlob) {\n        if (matchGlob === void 0) { matchGlob = true; }\n        if (!stateOrName && stateOrName !== '')\n            return undefined;\n        var isStr = isString(stateOrName);\n        var name = isStr ? stateOrName : stateOrName.name;\n        if (this.isRelative(name))\n            name = this.resolvePath(name, base);\n        var state = this._states[name];\n        if (state && (isStr || (!isStr && (state === stateOrName || state.self === stateOrName)))) {\n            return state;\n        }\n        else if (isStr && matchGlob) {\n            var _states = values(this._states);\n            var matches = _states.filter(function (_state) { return _state.__stateObjectCache.nameGlob && _state.__stateObjectCache.nameGlob.matches(name); });\n            if (matches.length > 1) {\n                safeConsole.error(\"stateMatcher.find: Found multiple matches for \" + name + \" using glob: \", matches.map(function (match) { return match.name; }));\n            }\n            return matches[0];\n        }\n        return undefined;\n    };\n    StateMatcher.prototype.resolvePath = function (name, base) {\n        if (!base)\n            throw new Error(\"No reference point given for path '\" + name + \"'\");\n        var baseState = this.find(base);\n        var splitName = name.split('.');\n        var pathLength = splitName.length;\n        var i = 0, current = baseState;\n        for (; i < pathLength; i++) {\n            if (splitName[i] === '' && i === 0) {\n                current = baseState;\n                continue;\n            }\n            if (splitName[i] === '^') {\n                if (!current.parent)\n                    throw new Error(\"Path '\" + name + \"' not valid for state '\" + baseState.name + \"'\");\n                current = current.parent;\n                continue;\n            }\n            break;\n        }\n        var relName = splitName.slice(i).join('.');\n        return current.name + (current.name && relName ? '.' : '') + relName;\n    };\n    return StateMatcher;\n}());\nexport { StateMatcher };\n","import { defaults, values, find, inherit } from '../common/common';\nimport { propEq } from '../common/hof';\nimport { Glob } from '../common/glob';\nimport { isObject, isFunction } from '../common/predicates';\n/**\n * Internal representation of a UI-Router state.\n *\n * Instances of this class are created when a [[StateDeclaration]] is registered with the [[StateRegistry]].\n *\n * A registered [[StateDeclaration]] is augmented with a getter ([[StateDeclaration.$$state]]) which returns the corresponding [[StateObject]] object.\n *\n * This class prototypally inherits from the corresponding [[StateDeclaration]].\n * Each of its own properties (i.e., `hasOwnProperty`) are built using builders from the [[StateBuilder]].\n */\nvar StateObject = /** @class */ (function () {\n    /** @deprecated use State.create() */\n    function StateObject(config) {\n        return StateObject.create(config || {});\n    }\n    /**\n     * Create a state object to put the private/internal implementation details onto.\n     * The object's prototype chain looks like:\n     * (Internal State Object) -> (Copy of State.prototype) -> (State Declaration object) -> (State Declaration's prototype...)\n     *\n     * @param stateDecl the user-supplied State Declaration\n     * @returns {StateObject} an internal State object\n     */\n    StateObject.create = function (stateDecl) {\n        stateDecl = StateObject.isStateClass(stateDecl) ? new stateDecl() : stateDecl;\n        var state = inherit(inherit(stateDecl, StateObject.prototype));\n        stateDecl.$$state = function () { return state; };\n        state.self = stateDecl;\n        state.__stateObjectCache = {\n            nameGlob: Glob.fromString(state.name),\n        };\n        return state;\n    };\n    /**\n     * Returns true if the provided parameter is the same state.\n     *\n     * Compares the identity of the state against the passed value, which is either an object\n     * reference to the actual `State` instance, the original definition object passed to\n     * `$stateProvider.state()`, or the fully-qualified name.\n     *\n     * @param ref Can be one of (a) a `State` instance, (b) an object that was passed\n     *        into `$stateProvider.state()`, (c) the fully-qualified name of a state as a string.\n     * @returns Returns `true` if `ref` matches the current `State` instance.\n     */\n    StateObject.prototype.is = function (ref) {\n        return this === ref || this.self === ref || this.fqn() === ref;\n    };\n    /**\n     * @deprecated this does not properly handle dot notation\n     * @returns Returns a dot-separated name of the state.\n     */\n    StateObject.prototype.fqn = function () {\n        if (!this.parent || !(this.parent instanceof this.constructor))\n            return this.name;\n        var name = this.parent.fqn();\n        return name ? name + '.' + this.name : this.name;\n    };\n    /**\n     * Returns the root node of this state's tree.\n     *\n     * @returns The root of this state's tree.\n     */\n    StateObject.prototype.root = function () {\n        return (this.parent && this.parent.root()) || this;\n    };\n    /**\n     * Gets the state's `Param` objects\n     *\n     * Gets the list of [[Param]] objects owned by the state.\n     * If `opts.inherit` is true, it also includes the ancestor states' [[Param]] objects.\n     * If `opts.matchingKeys` exists, returns only `Param`s whose `id` is a key on the `matchingKeys` object\n     *\n     * @param opts options\n     */\n    StateObject.prototype.parameters = function (opts) {\n        opts = defaults(opts, { inherit: true, matchingKeys: null });\n        var inherited = (opts.inherit && this.parent && this.parent.parameters()) || [];\n        return inherited\n            .concat(values(this.params))\n            .filter(function (param) { return !opts.matchingKeys || opts.matchingKeys.hasOwnProperty(param.id); });\n    };\n    /**\n     * Returns a single [[Param]] that is owned by the state\n     *\n     * If `opts.inherit` is true, it also searches the ancestor states` [[Param]]s.\n     * @param id the name of the [[Param]] to return\n     * @param opts options\n     */\n    StateObject.prototype.parameter = function (id, opts) {\n        if (opts === void 0) { opts = {}; }\n        return ((this.url && this.url.parameter(id, opts)) ||\n            find(values(this.params), propEq('id', id)) ||\n            (opts.inherit && this.parent && this.parent.parameter(id)));\n    };\n    StateObject.prototype.toString = function () {\n        return this.fqn();\n    };\n    /** Predicate which returns true if the object is an class with @State() decorator */\n    StateObject.isStateClass = function (stateDecl) {\n        return isFunction(stateDecl) && stateDecl['__uiRouterState'] === true;\n    };\n    /** Predicate which returns true if the object is a [[StateDeclaration]] object */\n    StateObject.isStateDeclaration = function (obj) { return isFunction(obj['$$state']); };\n    /** Predicate which returns true if the object is an internal [[StateObject]] object */\n    StateObject.isState = function (obj) { return isObject(obj['__stateObjectCache']); };\n    return StateObject;\n}());\nexport { StateObject };\n","import { inArray, isString, prop } from '../common';\nimport { StateObject } from './stateObject';\nvar StateQueueManager = /** @class */ (function () {\n    function StateQueueManager(router, states, builder, listeners) {\n        this.router = router;\n        this.states = states;\n        this.builder = builder;\n        this.listeners = listeners;\n        this.queue = [];\n    }\n    StateQueueManager.prototype.dispose = function () {\n        this.queue = [];\n    };\n    StateQueueManager.prototype.register = function (stateDecl) {\n        var queue = this.queue;\n        var state = StateObject.create(stateDecl);\n        var name = state.name;\n        if (!isString(name))\n            throw new Error('State must have a valid name');\n        if (this.states.hasOwnProperty(name) || inArray(queue.map(prop('name')), name))\n            throw new Error(\"State '\" + name + \"' is already defined\");\n        queue.push(state);\n        this.flush();\n        return state;\n    };\n    StateQueueManager.prototype.flush = function () {\n        var _this = this;\n        var _a = this, queue = _a.queue, states = _a.states, builder = _a.builder;\n        var registered = [], // states that got registered\n        orphans = [], // states that don't yet have a parent registered\n        previousQueueLength = {}; // keep track of how long the queue when an orphan was first encountered\n        var getState = function (name) { return _this.states.hasOwnProperty(name) && _this.states[name]; };\n        var notifyListeners = function () {\n            if (registered.length) {\n                _this.listeners.forEach(function (listener) {\n                    return listener('registered', registered.map(function (s) { return s.self; }));\n                });\n            }\n        };\n        while (queue.length > 0) {\n            var state = queue.shift();\n            var name_1 = state.name;\n            var result = builder.build(state);\n            var orphanIdx = orphans.indexOf(state);\n            if (result) {\n                var existingState = getState(name_1);\n                if (existingState && existingState.name === name_1) {\n                    throw new Error(\"State '\" + name_1 + \"' is already defined\");\n                }\n                var existingFutureState = getState(name_1 + '.**');\n                if (existingFutureState) {\n                    // Remove future state of the same name\n                    this.router.stateRegistry.deregister(existingFutureState);\n                }\n                states[name_1] = state;\n                this.attachRoute(state);\n                if (orphanIdx >= 0)\n                    orphans.splice(orphanIdx, 1);\n                registered.push(state);\n                continue;\n            }\n            var prev = previousQueueLength[name_1];\n            previousQueueLength[name_1] = queue.length;\n            if (orphanIdx >= 0 && prev === queue.length) {\n                // Wait until two consecutive iterations where no additional states were dequeued successfully.\n                // throw new Error(`Cannot register orphaned state '${name}'`);\n                queue.push(state);\n                notifyListeners();\n                return states;\n            }\n            else if (orphanIdx < 0) {\n                orphans.push(state);\n            }\n            queue.push(state);\n        }\n        notifyListeners();\n        return states;\n    };\n    StateQueueManager.prototype.attachRoute = function (state) {\n        if (state.abstract || !state.url)\n            return;\n        var rulesApi = this.router.urlService.rules;\n        rulesApi.rule(rulesApi.urlRuleFactory.create(state));\n    };\n    return StateQueueManager;\n}());\nexport { StateQueueManager };\n","import { StateMatcher } from './stateMatcher';\nimport { StateBuilder } from './stateBuilder';\nimport { StateQueueManager } from './stateQueueManager';\nimport { removeFrom } from '../common/common';\nimport { propEq } from '../common/hof';\n/**\n * A registry for all of the application's [[StateDeclaration]]s\n *\n * This API is found at `router.stateRegistry` ([[UIRouter.stateRegistry]])\n */\nvar StateRegistry = /** @class */ (function () {\n    /** @internal */\n    function StateRegistry(router) {\n        this.router = router;\n        this.states = {};\n        /** @internal */\n        this.listeners = [];\n        this.matcher = new StateMatcher(this.states);\n        this.builder = new StateBuilder(this.matcher, router.urlMatcherFactory);\n        this.stateQueue = new StateQueueManager(router, this.states, this.builder, this.listeners);\n        this._registerRoot();\n    }\n    /** @internal */\n    StateRegistry.prototype._registerRoot = function () {\n        var rootStateDef = {\n            name: '',\n            url: '^',\n            views: null,\n            params: {\n                '#': { value: null, type: 'hash', dynamic: true },\n            },\n            abstract: true,\n        };\n        var _root = (this._root = this.stateQueue.register(rootStateDef));\n        _root.navigable = null;\n    };\n    /** @internal */\n    StateRegistry.prototype.dispose = function () {\n        var _this = this;\n        this.stateQueue.dispose();\n        this.listeners = [];\n        this.get().forEach(function (state) { return _this.get(state) && _this.deregister(state); });\n    };\n    /**\n     * Listen for a State Registry events\n     *\n     * Adds a callback that is invoked when states are registered or deregistered with the StateRegistry.\n     *\n     * #### Example:\n     * ```js\n     * let allStates = registry.get();\n     *\n     * // Later, invoke deregisterFn() to remove the listener\n     * let deregisterFn = registry.onStatesChanged((event, states) => {\n     *   switch(event) {\n     *     case: 'registered':\n     *       states.forEach(state => allStates.push(state));\n     *       break;\n     *     case: 'deregistered':\n     *       states.forEach(state => {\n     *         let idx = allStates.indexOf(state);\n     *         if (idx !== -1) allStates.splice(idx, 1);\n     *       });\n     *       break;\n     *   }\n     * });\n     * ```\n     *\n     * @param listener a callback function invoked when the registered states changes.\n     *        The function receives two parameters, `event` and `state`.\n     *        See [[StateRegistryListener]]\n     * @return a function that deregisters the listener\n     */\n    StateRegistry.prototype.onStatesChanged = function (listener) {\n        this.listeners.push(listener);\n        return function deregisterListener() {\n            removeFrom(this.listeners)(listener);\n        }.bind(this);\n    };\n    /**\n     * Gets the implicit root state\n     *\n     * Gets the root of the state tree.\n     * The root state is implicitly created by UI-Router.\n     * Note: this returns the internal [[StateObject]] representation, not a [[StateDeclaration]]\n     *\n     * @return the root [[StateObject]]\n     */\n    StateRegistry.prototype.root = function () {\n        return this._root;\n    };\n    /**\n     * Adds a state to the registry\n     *\n     * Registers a [[StateDeclaration]] or queues it for registration.\n     *\n     * Note: a state will be queued if the state's parent isn't yet registered.\n     *\n     * @param stateDefinition the definition of the state to register.\n     * @returns the internal [[StateObject]] object.\n     *          If the state was successfully registered, then the object is fully built (See: [[StateBuilder]]).\n     *          If the state was only queued, then the object is not fully built.\n     */\n    StateRegistry.prototype.register = function (stateDefinition) {\n        return this.stateQueue.register(stateDefinition);\n    };\n    /** @internal */\n    StateRegistry.prototype._deregisterTree = function (state) {\n        var _this = this;\n        var all = this.get().map(function (s) { return s.$$state(); });\n        var getChildren = function (states) {\n            var _children = all.filter(function (s) { return states.indexOf(s.parent) !== -1; });\n            return _children.length === 0 ? _children : _children.concat(getChildren(_children));\n        };\n        var children = getChildren([state]);\n        var deregistered = [state].concat(children).reverse();\n        deregistered.forEach(function (_state) {\n            var rulesApi = _this.router.urlService.rules;\n            // Remove URL rule\n            rulesApi\n                .rules()\n                .filter(propEq('state', _state))\n                .forEach(function (rule) { return rulesApi.removeRule(rule); });\n            // Remove state from registry\n            delete _this.states[_state.name];\n        });\n        return deregistered;\n    };\n    /**\n     * Removes a state from the registry\n     *\n     * This removes a state from the registry.\n     * If the state has children, they are are also removed from the registry.\n     *\n     * @param stateOrName the state's name or object representation\n     * @returns {StateObject[]} a list of removed states\n     */\n    StateRegistry.prototype.deregister = function (stateOrName) {\n        var _state = this.get(stateOrName);\n        if (!_state)\n            throw new Error(\"Can't deregister state; not found: \" + stateOrName);\n        var deregisteredStates = this._deregisterTree(_state.$$state());\n        this.listeners.forEach(function (listener) {\n            return listener('deregistered', deregisteredStates.map(function (s) { return s.self; }));\n        });\n        return deregisteredStates;\n    };\n    StateRegistry.prototype.get = function (stateOrName, base) {\n        var _this = this;\n        if (arguments.length === 0)\n            return Object.keys(this.states).map(function (name) { return _this.states[name].self; });\n        var found = this.matcher.find(stateOrName, base);\n        return (found && found.self) || null;\n    };\n    /**\n     * Registers a [[BuilderFunction]] for a specific [[StateObject]] property (e.g., `parent`, `url`, or `path`).\n     * More than one BuilderFunction can be registered for a given property.\n     *\n     * The BuilderFunction(s) will be used to define the property on any subsequently built [[StateObject]] objects.\n     *\n     * @param property The name of the State property being registered for.\n     * @param builderFunction The BuilderFunction which will be used to build the State property\n     * @returns a function which deregisters the BuilderFunction\n     */\n    StateRegistry.prototype.decorator = function (property, builderFunction) {\n        return this.builder.builder(property, builderFunction);\n    };\n    return StateRegistry;\n}());\nexport { StateRegistry };\n","import { createProxyFunctions, defaults, extend, inArray, noop, removeFrom, silenceUncaughtInPromise, silentRejection, } from '../common/common';\nimport { isDefined, isObject, isString } from '../common/predicates';\nimport { Queue } from '../common/queue';\nimport { services } from '../common/coreservices';\nimport { PathUtils } from '../path/pathUtils';\nimport { PathNode } from '../path/pathNode';\nimport { defaultTransOpts } from '../transition/transitionService';\nimport { Rejection, RejectType } from '../transition/rejectFactory';\nimport { TargetState } from './targetState';\nimport { Param } from '../params/param';\nimport { Glob } from '../common/glob';\nimport { ResolveContext } from '../resolve/resolveContext';\nimport { lazyLoadState } from '../hooks/lazyLoad';\nimport { not, val } from '../common/hof';\n/**\n * Provides services related to ui-router states.\n *\n * This API is located at `router.stateService` ([[UIRouter.stateService]])\n */\nvar StateService = /** @class */ (function () {\n    /** @internal */\n    function StateService(/** @internal */ router) {\n        this.router = router;\n        /** @internal */\n        this.invalidCallbacks = [];\n        /** @internal */\n        this._defaultErrorHandler = function $defaultErrorHandler($error$) {\n            if ($error$ instanceof Error && $error$.stack) {\n                console.error($error$);\n                console.error($error$.stack);\n            }\n            else if ($error$ instanceof Rejection) {\n                console.error($error$.toString());\n                if ($error$.detail && $error$.detail.stack)\n                    console.error($error$.detail.stack);\n            }\n            else {\n                console.error($error$);\n            }\n        };\n        var getters = ['current', '$current', 'params', 'transition'];\n        var boundFns = Object.keys(StateService.prototype).filter(not(inArray(getters)));\n        createProxyFunctions(val(StateService.prototype), this, val(this), boundFns);\n    }\n    Object.defineProperty(StateService.prototype, \"transition\", {\n        /**\n         * The [[Transition]] currently in progress (or null)\n         *\n         * @deprecated This is a passthrough through to [[UIRouterGlobals.transition]]\n         */\n        get: function () {\n            return this.router.globals.transition;\n        },\n        enumerable: false,\n        configurable: true\n    });\n    Object.defineProperty(StateService.prototype, \"params\", {\n        /**\n         * The latest successful state parameters\n         *\n         * @deprecated This is a passthrough through to [[UIRouterGlobals.params]]\n         */\n        get: function () {\n            return this.router.globals.params;\n        },\n        enumerable: false,\n        configurable: true\n    });\n    Object.defineProperty(StateService.prototype, \"current\", {\n        /**\n         * The current [[StateDeclaration]]\n         *\n         * @deprecated This is a passthrough through to [[UIRouterGlobals.current]]\n         */\n        get: function () {\n            return this.router.globals.current;\n        },\n        enumerable: false,\n        configurable: true\n    });\n    Object.defineProperty(StateService.prototype, \"$current\", {\n        /**\n         * The current [[StateObject]] (an internal API)\n         *\n         * @deprecated This is a passthrough through to [[UIRouterGlobals.$current]]\n         */\n        get: function () {\n            return this.router.globals.$current;\n        },\n        enumerable: false,\n        configurable: true\n    });\n    /** @internal */\n    StateService.prototype.dispose = function () {\n        this.defaultErrorHandler(noop);\n        this.invalidCallbacks = [];\n    };\n    /**\n     * Handler for when [[transitionTo]] is called with an invalid state.\n     *\n     * Invokes the [[onInvalid]] callbacks, in natural order.\n     * Each callback's return value is checked in sequence until one of them returns an instance of TargetState.\n     * The results of the callbacks are wrapped in $q.when(), so the callbacks may return promises.\n     *\n     * If a callback returns an TargetState, then it is used as arguments to $state.transitionTo() and the result returned.\n     *\n     * @internal\n     */\n    StateService.prototype._handleInvalidTargetState = function (fromPath, toState) {\n        var _this = this;\n        var fromState = PathUtils.makeTargetState(this.router.stateRegistry, fromPath);\n        var globals = this.router.globals;\n        var latestThing = function () { return globals.transitionHistory.peekTail(); };\n        var latest = latestThing();\n        var callbackQueue = new Queue(this.invalidCallbacks.slice());\n        var injector = new ResolveContext(fromPath).injector();\n        var checkForRedirect = function (result) {\n            if (!(result instanceof TargetState)) {\n                return;\n            }\n            var target = result;\n            // Recreate the TargetState, in case the state is now defined.\n            target = _this.target(target.identifier(), target.params(), target.options());\n            if (!target.valid()) {\n                return Rejection.invalid(target.error()).toPromise();\n            }\n            if (latestThing() !== latest) {\n                return Rejection.superseded().toPromise();\n            }\n            return _this.transitionTo(target.identifier(), target.params(), target.options());\n        };\n        function invokeNextCallback() {\n            var nextCallback = callbackQueue.dequeue();\n            if (nextCallback === undefined)\n                return Rejection.invalid(toState.error()).toPromise();\n            var callbackResult = services.$q.when(nextCallback(toState, fromState, injector));\n            return callbackResult.then(checkForRedirect).then(function (result) { return result || invokeNextCallback(); });\n        }\n        return invokeNextCallback();\n    };\n    /**\n     * Registers an Invalid State handler\n     *\n     * Registers a [[OnInvalidCallback]] function to be invoked when [[StateService.transitionTo]]\n     * has been called with an invalid state reference parameter\n     *\n     * Example:\n     * ```js\n     * stateService.onInvalid(function(to, from, injector) {\n     *   if (to.name() === 'foo') {\n     *     let lazyLoader = injector.get('LazyLoadService');\n     *     return lazyLoader.load('foo')\n     *         .then(() => stateService.target('foo'));\n     *   }\n     * });\n     * ```\n     *\n     * @param {function} callback invoked when the toState is invalid\n     *   This function receives the (invalid) toState, the fromState, and an injector.\n     *   The function may optionally return a [[TargetState]] or a Promise for a TargetState.\n     *   If one is returned, it is treated as a redirect.\n     *\n     * @returns a function which deregisters the callback\n     */\n    StateService.prototype.onInvalid = function (callback) {\n        this.invalidCallbacks.push(callback);\n        return function deregisterListener() {\n            removeFrom(this.invalidCallbacks)(callback);\n        }.bind(this);\n    };\n    /**\n     * Reloads the current state\n     *\n     * A method that force reloads the current state, or a partial state hierarchy.\n     * All resolves are re-resolved, and components reinstantiated.\n     *\n     * #### Example:\n     * ```js\n     * let app angular.module('app', ['ui.router']);\n     *\n     * app.controller('ctrl', function ($scope, $state) {\n     *   $scope.reload = function(){\n     *     $state.reload();\n     *   }\n     * });\n     * ```\n     *\n     * Note: `reload()` is just an alias for:\n     *\n     * ```js\n     * $state.transitionTo($state.current, $state.params, {\n     *   reload: true, inherit: false\n     * });\n     * ```\n     *\n     * @param reloadState A state name or a state object.\n     *    If present, this state and all its children will be reloaded, but ancestors will not reload.\n     *\n     * #### Example:\n     * ```js\n     * //assuming app application consists of 3 states: 'contacts', 'contacts.detail', 'contacts.detail.item'\n     * //and current state is 'contacts.detail.item'\n     * let app angular.module('app', ['ui.router']);\n     *\n     * app.controller('ctrl', function ($scope, $state) {\n     *   $scope.reload = function(){\n     *     //will reload 'contact.detail' and nested 'contact.detail.item' states\n     *     $state.reload('contact.detail');\n     *   }\n     * });\n     * ```\n     *\n     * @returns A promise representing the state of the new transition. See [[StateService.go]]\n     */\n    StateService.prototype.reload = function (reloadState) {\n        return this.transitionTo(this.current, this.params, {\n            reload: isDefined(reloadState) ? reloadState : true,\n            inherit: false,\n            notify: false,\n        });\n    };\n    /**\n     * Transition to a different state and/or parameters\n     *\n     * Convenience method for transitioning to a new state.\n     *\n     * `$state.go` calls `$state.transitionTo` internally but automatically sets options to\n     * `{ location: true, inherit: true, relative: router.globals.$current, notify: true }`.\n     * This allows you to use either an absolute or relative `to` argument (because of `relative: router.globals.$current`).\n     * It also allows you to specify * only the parameters you'd like to update, while letting unspecified parameters\n     * inherit from the current parameter values (because of `inherit: true`).\n     *\n     * #### Example:\n     * ```js\n     * let app = angular.module('app', ['ui.router']);\n     *\n     * app.controller('ctrl', function ($scope, $state) {\n     *   $scope.changeState = function () {\n     *     $state.go('contact.detail');\n     *   };\n     * });\n     * ```\n     *\n     * @param to Absolute state name, state object, or relative state path (relative to current state).\n     *\n     * Some examples:\n     *\n     * - `$state.go('contact.detail')` - will go to the `contact.detail` state\n     * - `$state.go('^')` - will go to the parent state\n     * - `$state.go('^.sibling')` - if current state is `home.child`, will go to the `home.sibling` state\n     * - `$state.go('.child.grandchild')` - if current state is home, will go to the `home.child.grandchild` state\n     *\n     * @param params A map of the parameters that will be sent to the state, will populate $stateParams.\n     *\n     *    Any parameters that are not specified will be inherited from current parameter values (because of `inherit: true`).\n     *    This allows, for example, going to a sibling state that shares parameters defined by a parent state.\n     *\n     * @param options Transition options\n     *\n     * @returns {promise} A promise representing the state of the new transition.\n     */\n    StateService.prototype.go = function (to, params, options) {\n        var defautGoOpts = { relative: this.$current, inherit: true };\n        var transOpts = defaults(options, defautGoOpts, defaultTransOpts);\n        return this.transitionTo(to, params, transOpts);\n    };\n    /**\n     * Creates a [[TargetState]]\n     *\n     * This is a factory method for creating a TargetState\n     *\n     * This may be returned from a Transition Hook to redirect a transition, for example.\n     */\n    StateService.prototype.target = function (identifier, params, options) {\n        if (options === void 0) { options = {}; }\n        // If we're reloading, find the state object to reload from\n        if (isObject(options.reload) && !options.reload.name)\n            throw new Error('Invalid reload state object');\n        var reg = this.router.stateRegistry;\n        options.reloadState =\n            options.reload === true ? reg.root() : reg.matcher.find(options.reload, options.relative);\n        if (options.reload && !options.reloadState)\n            throw new Error(\"No such reload state '\" + (isString(options.reload) ? options.reload : options.reload.name) + \"'\");\n        return new TargetState(this.router.stateRegistry, identifier, params, options);\n    };\n    /** @internal */\n    StateService.prototype.getCurrentPath = function () {\n        var _this = this;\n        var globals = this.router.globals;\n        var latestSuccess = globals.successfulTransitions.peekTail();\n        var rootPath = function () { return [new PathNode(_this.router.stateRegistry.root())]; };\n        return latestSuccess ? latestSuccess.treeChanges().to : rootPath();\n    };\n    /**\n     * Low-level method for transitioning to a new state.\n     *\n     * The [[go]] method (which uses `transitionTo` internally) is recommended in most situations.\n     *\n     * #### Example:\n     * ```js\n     * let app = angular.module('app', ['ui.router']);\n     *\n     * app.controller('ctrl', function ($scope, $state) {\n     *   $scope.changeState = function () {\n     *     $state.transitionTo('contact.detail');\n     *   };\n     * });\n     * ```\n     *\n     * @param to State name or state object.\n     * @param toParams A map of the parameters that will be sent to the state,\n     *      will populate $stateParams.\n     * @param options Transition options\n     *\n     * @returns A promise representing the state of the new transition. See [[go]]\n     */\n    StateService.prototype.transitionTo = function (to, toParams, options) {\n        var _this = this;\n        if (toParams === void 0) { toParams = {}; }\n        if (options === void 0) { options = {}; }\n        var router = this.router;\n        var globals = router.globals;\n        options = defaults(options, defaultTransOpts);\n        var getCurrent = function () { return globals.transition; };\n        options = extend(options, { current: getCurrent });\n        var ref = this.target(to, toParams, options);\n        var currentPath = this.getCurrentPath();\n        if (!ref.exists())\n            return this._handleInvalidTargetState(currentPath, ref);\n        if (!ref.valid())\n            return silentRejection(ref.error());\n        if (options.supercede === false && getCurrent()) {\n            return (Rejection.ignored('Another transition is in progress and supercede has been set to false in TransitionOptions for the transition. So the transition was ignored in favour of the existing one in progress.').toPromise());\n        }\n        /**\n         * Special handling for Ignored, Aborted, and Redirected transitions\n         *\n         * The semantics for the transition.run() promise and the StateService.transitionTo()\n         * promise differ. For instance, the run() promise may be rejected because it was\n         * IGNORED, but the transitionTo() promise is resolved because from the user perspective\n         * no error occurred.  Likewise, the transition.run() promise may be rejected because of\n         * a Redirect, but the transitionTo() promise is chained to the new Transition's promise.\n         */\n        var rejectedTransitionHandler = function (trans) { return function (error) {\n            if (error instanceof Rejection) {\n                var isLatest = router.globals.lastStartedTransitionId <= trans.$id;\n                if (error.type === RejectType.IGNORED) {\n                    isLatest && router.urlRouter.update();\n                    // Consider ignored `Transition.run()` as a successful `transitionTo`\n                    return services.$q.when(globals.current);\n                }\n                var detail = error.detail;\n                if (error.type === RejectType.SUPERSEDED && error.redirected && detail instanceof TargetState) {\n                    // If `Transition.run()` was redirected, allow the `transitionTo()` promise to resolve successfully\n                    // by returning the promise for the new (redirect) `Transition.run()`.\n                    var redirect = trans.redirect(detail);\n                    return redirect.run().catch(rejectedTransitionHandler(redirect));\n                }\n                if (error.type === RejectType.ABORTED) {\n                    isLatest && router.urlRouter.update();\n                    return services.$q.reject(error);\n                }\n            }\n            var errorHandler = _this.defaultErrorHandler();\n            errorHandler(error);\n            return services.$q.reject(error);\n        }; };\n        var transition = this.router.transitionService.create(currentPath, ref);\n        var transitionToPromise = transition.run().catch(rejectedTransitionHandler(transition));\n        silenceUncaughtInPromise(transitionToPromise); // issue #2676\n        // Return a promise for the transition, which also has the transition object on it.\n        return extend(transitionToPromise, { transition: transition });\n    };\n    /**\n     * Checks if the current state *is* the provided state\n     *\n     * Similar to [[includes]] but only checks for the full state name.\n     * If params is supplied then it will be tested for strict equality against the current\n     * active params object, so all params must match with none missing and no extras.\n     *\n     * #### Example:\n     * ```js\n     * $state.$current.name = 'contacts.details.item';\n     *\n     * // absolute name\n     * $state.is('contact.details.item'); // returns true\n     * $state.is(contactDetailItemStateObject); // returns true\n     * ```\n     *\n     * // relative name (. and ^), typically from a template\n     * // E.g. from the 'contacts.details' template\n     * ```html\n     * <div ng-class=\"{highlighted: $state.is('.item')}\">Item</div>\n     * ```\n     *\n     * @param stateOrName The state name (absolute or relative) or state object you'd like to check.\n     * @param params A param object, e.g. `{sectionId: section.id}`, that you'd like\n     * to test against the current active state.\n     * @param options An options object. The options are:\n     *   - `relative`: If `stateOrName` is a relative state name and `options.relative` is set, .is will\n     *     test relative to `options.relative` state (or name).\n     *\n     * @returns Returns true if it is the state.\n     */\n    StateService.prototype.is = function (stateOrName, params, options) {\n        options = defaults(options, { relative: this.$current });\n        var state = this.router.stateRegistry.matcher.find(stateOrName, options.relative);\n        if (!isDefined(state))\n            return undefined;\n        if (this.$current !== state)\n            return false;\n        if (!params)\n            return true;\n        var schema = state.parameters({ inherit: true, matchingKeys: params });\n        return Param.equals(schema, Param.values(schema, params), this.params);\n    };\n    /**\n     * Checks if the current state *includes* the provided state\n     *\n     * A method to determine if the current active state is equal to or is the child of the\n     * state stateName. If any params are passed then they will be tested for a match as well.\n     * Not all the parameters need to be passed, just the ones you'd like to test for equality.\n     *\n     * #### Example when `$state.$current.name === 'contacts.details.item'`\n     * ```js\n     * // Using partial names\n     * $state.includes(\"contacts\"); // returns true\n     * $state.includes(\"contacts.details\"); // returns true\n     * $state.includes(\"contacts.details.item\"); // returns true\n     * $state.includes(\"contacts.list\"); // returns false\n     * $state.includes(\"about\"); // returns false\n     * ```\n     *\n     * #### Glob Examples when `* $state.$current.name === 'contacts.details.item.url'`:\n     * ```js\n     * $state.includes(\"*.details.*.*\"); // returns true\n     * $state.includes(\"*.details.**\"); // returns true\n     * $state.includes(\"**.item.**\"); // returns true\n     * $state.includes(\"*.details.item.url\"); // returns true\n     * $state.includes(\"*.details.*.url\"); // returns true\n     * $state.includes(\"*.details.*\"); // returns false\n     * $state.includes(\"item.**\"); // returns false\n     * ```\n     *\n     * @param stateOrName A partial name, relative name, glob pattern,\n     *   or state object to be searched for within the current state name.\n     * @param params A param object, e.g. `{sectionId: section.id}`,\n     *   that you'd like to test against the current active state.\n     * @param options An options object. The options are:\n     *   - `relative`: If `stateOrName` is a relative state name and `options.relative` is set, .is will\n     *     test relative to `options.relative` state (or name).\n     *\n     * @returns {boolean} Returns true if it does include the state\n     */\n    StateService.prototype.includes = function (stateOrName, params, options) {\n        options = defaults(options, { relative: this.$current });\n        var glob = isString(stateOrName) && Glob.fromString(stateOrName);\n        if (glob) {\n            if (!glob.matches(this.$current.name))\n                return false;\n            stateOrName = this.$current.name;\n        }\n        var state = this.router.stateRegistry.matcher.find(stateOrName, options.relative), include = this.$current.includes;\n        if (!isDefined(state))\n            return undefined;\n        if (!isDefined(include[state.name]))\n            return false;\n        if (!params)\n            return true;\n        var schema = state.parameters({ inherit: true, matchingKeys: params });\n        return Param.equals(schema, Param.values(schema, params), this.params);\n    };\n    /**\n     * Generates a URL for a state and parameters\n     *\n     * Returns the url for the given state populated with the given params.\n     *\n     * #### Example:\n     * ```js\n     * expect($state.href(\"about.person\", { person: \"bob\" })).toEqual(\"/about/bob\");\n     * ```\n     *\n     * @param stateOrName The state name or state object you'd like to generate a url from.\n     * @param params An object of parameter values to fill the state's required parameters.\n     * @param options Options object. The options are:\n     *\n     * @returns {string} compiled state url\n     */\n    StateService.prototype.href = function (stateOrName, params, options) {\n        var defaultHrefOpts = {\n            lossy: true,\n            inherit: true,\n            absolute: false,\n            relative: this.$current,\n        };\n        options = defaults(options, defaultHrefOpts);\n        params = params || {};\n        var state = this.router.stateRegistry.matcher.find(stateOrName, options.relative);\n        if (!isDefined(state))\n            return null;\n        if (options.inherit)\n            params = this.params.$inherit(params, this.$current, state);\n        var nav = state && options.lossy ? state.navigable : state;\n        if (!nav || nav.url === undefined || nav.url === null) {\n            return null;\n        }\n        return this.router.urlRouter.href(nav.url, params, { absolute: options.absolute });\n    };\n    /**\n     * Sets or gets the default [[transitionTo]] error handler.\n     *\n     * The error handler is called when a [[Transition]] is rejected or when any error occurred during the Transition.\n     * This includes errors caused by resolves and transition hooks.\n     *\n     * Note:\n     * This handler does not receive certain Transition rejections.\n     * Redirected and Ignored Transitions are not considered to be errors by [[StateService.transitionTo]].\n     *\n     * The built-in default error handler logs the error to the console.\n     *\n     * You can provide your own custom handler.\n     *\n     * #### Example:\n     * ```js\n     * stateService.defaultErrorHandler(function() {\n     *   // Do not log transitionTo errors\n     * });\n     * ```\n     *\n     * @param handler a global error handler function\n     * @returns the current global error handler\n     */\n    StateService.prototype.defaultErrorHandler = function (handler) {\n        return (this._defaultErrorHandler = handler || this._defaultErrorHandler);\n    };\n    StateService.prototype.get = function (stateOrName, base) {\n        var reg = this.router.stateRegistry;\n        if (arguments.length === 0)\n            return reg.get();\n        return reg.get(stateOrName, base || this.$current);\n    };\n    /**\n     * Lazy loads a state\n     *\n     * Explicitly runs a state's [[StateDeclaration.lazyLoad]] function.\n     *\n     * @param stateOrName the state that should be lazy loaded\n     * @param transition the optional Transition context to use (if the lazyLoad function requires an injector, etc)\n     * Note: If no transition is provided, a noop transition is created using the from the current state to the current state.\n     * This noop transition is not actually run.\n     *\n     * @returns a promise to lazy load\n     */\n    StateService.prototype.lazyLoad = function (stateOrName, transition) {\n        var state = this.get(stateOrName);\n        if (!state || !state.lazyLoad)\n            throw new Error('Can not lazy load ' + stateOrName);\n        var currentPath = this.getCurrentPath();\n        var target = PathUtils.makeTargetState(this.router.stateRegistry, currentPath);\n        transition = transition || this.router.transitionService.create(currentPath, target);\n        return lazyLoadState(transition, state);\n    };\n    return StateService;\n}());\nexport { StateService };\n","import { isObject, isString } from '../common/predicates';\nimport { stringify } from '../common/strings';\nimport { extend } from '../common';\n/**\n * Encapsulate the target (destination) state/params/options of a [[Transition]].\n *\n * This class is frequently used to redirect a transition to a new destination.\n *\n * See:\n *\n * - [[HookResult]]\n * - [[TransitionHookFn]]\n * - [[TransitionService.onStart]]\n *\n * To create a `TargetState`, use [[StateService.target]].\n *\n * ---\n *\n * This class wraps:\n *\n * 1) an identifier for a state\n * 2) a set of parameters\n * 3) and transition options\n * 4) the registered state object (the [[StateDeclaration]])\n *\n * Many UI-Router APIs such as [[StateService.go]] take a [[StateOrName]] argument which can\n * either be a *state object* (a [[StateDeclaration]] or [[StateObject]]) or a *state name* (a string).\n * The `TargetState` class normalizes those options.\n *\n * A `TargetState` may be valid (the state being targeted exists in the registry)\n * or invalid (the state being targeted is not registered).\n */\nvar TargetState = /** @class */ (function () {\n    /**\n     * The TargetState constructor\n     *\n     * Note: Do not construct a `TargetState` manually.\n     * To create a `TargetState`, use the [[StateService.target]] factory method.\n     *\n     * @param _stateRegistry The StateRegistry to use to look up the _definition\n     * @param _identifier An identifier for a state.\n     *    Either a fully-qualified state name, or the object used to define the state.\n     * @param _params Parameters for the target state\n     * @param _options Transition options.\n     *\n     * @internal\n     */\n    function TargetState(_stateRegistry, _identifier, _params, _options) {\n        this._stateRegistry = _stateRegistry;\n        this._identifier = _identifier;\n        this._identifier = _identifier;\n        this._params = extend({}, _params || {});\n        this._options = extend({}, _options || {});\n        this._definition = _stateRegistry.matcher.find(_identifier, this._options.relative);\n    }\n    /** The name of the state this object targets */\n    TargetState.prototype.name = function () {\n        return (this._definition && this._definition.name) || this._identifier;\n    };\n    /** The identifier used when creating this TargetState */\n    TargetState.prototype.identifier = function () {\n        return this._identifier;\n    };\n    /** The target parameter values */\n    TargetState.prototype.params = function () {\n        return this._params;\n    };\n    /** The internal state object (if it was found) */\n    TargetState.prototype.$state = function () {\n        return this._definition;\n    };\n    /** The internal state declaration (if it was found) */\n    TargetState.prototype.state = function () {\n        return this._definition && this._definition.self;\n    };\n    /** The target options */\n    TargetState.prototype.options = function () {\n        return this._options;\n    };\n    /** True if the target state was found */\n    TargetState.prototype.exists = function () {\n        return !!(this._definition && this._definition.self);\n    };\n    /** True if the object is valid */\n    TargetState.prototype.valid = function () {\n        return !this.error();\n    };\n    /** If the object is invalid, returns the reason why */\n    TargetState.prototype.error = function () {\n        var base = this.options().relative;\n        if (!this._definition && !!base) {\n            var stateName = base.name ? base.name : base;\n            return \"Could not resolve '\" + this.name() + \"' from state '\" + stateName + \"'\";\n        }\n        if (!this._definition)\n            return \"No such state '\" + this.name() + \"'\";\n        if (!this._definition.self)\n            return \"State '\" + this.name() + \"' has an invalid definition\";\n    };\n    TargetState.prototype.toString = function () {\n        return \"'\" + this.name() + \"'\" + stringify(this.params());\n    };\n    /**\n     * Returns a copy of this TargetState which targets a different state.\n     * The new TargetState has the same parameter values and transition options.\n     *\n     * @param state The new state that should be targeted\n     */\n    TargetState.prototype.withState = function (state) {\n        return new TargetState(this._stateRegistry, state, this._params, this._options);\n    };\n    /**\n     * Returns a copy of this TargetState, using the specified parameter values.\n     *\n     * @param params the new parameter values to use\n     * @param replace When false (default) the new parameter values will be merged with the current values.\n     *                When true the parameter values will be used instead of the current values.\n     */\n    TargetState.prototype.withParams = function (params, replace) {\n        if (replace === void 0) { replace = false; }\n        var newParams = replace ? params : extend({}, this._params, params);\n        return new TargetState(this._stateRegistry, this._identifier, newParams, this._options);\n    };\n    /**\n     * Returns a copy of this TargetState, using the specified Transition Options.\n     *\n     * @param options the new options to use\n     * @param replace When false (default) the new options will be merged with the current options.\n     *                When true the options will be used instead of the current options.\n     */\n    TargetState.prototype.withOptions = function (options, replace) {\n        if (replace === void 0) { replace = false; }\n        var newOpts = replace ? options : extend({}, this._options, options);\n        return new TargetState(this._stateRegistry, this._identifier, this._params, newOpts);\n    };\n    /** Returns true if the object has a state property that might be a state or state name */\n    TargetState.isDef = function (obj) {\n        return obj && obj.state && (isString(obj.state) || (isObject(obj.state) && isString(obj.state.name)));\n    };\n    return TargetState;\n}());\nexport { TargetState };\n","import { extend, assertPredicate, unnestR, identity } from '../common/common';\nimport { isArray } from '../common/predicates';\nimport { TransitionHookPhase, TransitionHookScope, } from './interface';\nimport { TransitionHook } from './transitionHook';\n/**\n * This class returns applicable TransitionHooks for a specific Transition instance.\n *\n * Hooks ([[RegisteredHook]]) may be registered globally, e.g., $transitions.onEnter(...), or locally, e.g.\n * myTransition.onEnter(...).  The HookBuilder finds matching RegisteredHooks (where the match criteria is\n * determined by the type of hook)\n *\n * The HookBuilder also converts RegisteredHooks objects to TransitionHook objects, which are used to run a Transition.\n *\n * The HookBuilder constructor is given the $transitions service and a Transition instance.  Thus, a HookBuilder\n * instance may only be used for one specific Transition object. (side note: the _treeChanges accessor is private\n * in the Transition class, so we must also provide the Transition's _treeChanges)\n */\nvar HookBuilder = /** @class */ (function () {\n    function HookBuilder(transition) {\n        this.transition = transition;\n    }\n    HookBuilder.prototype.buildHooksForPhase = function (phase) {\n        var _this = this;\n        var $transitions = this.transition.router.transitionService;\n        return $transitions._pluginapi\n            ._getEvents(phase)\n            .map(function (type) { return _this.buildHooks(type); })\n            .reduce(unnestR, [])\n            .filter(identity);\n    };\n    /**\n     * Returns an array of newly built TransitionHook objects.\n     *\n     * - Finds all RegisteredHooks registered for the given `hookType` which matched the transition's [[TreeChanges]].\n     * - Finds [[PathNode]] (or `PathNode[]`) to use as the TransitionHook context(s)\n     * - For each of the [[PathNode]]s, creates a TransitionHook\n     *\n     * @param hookType the type of the hook registration function, e.g., 'onEnter', 'onFinish'.\n     */\n    HookBuilder.prototype.buildHooks = function (hookType) {\n        var transition = this.transition;\n        var treeChanges = transition.treeChanges();\n        // Find all the matching registered hooks for a given hook type\n        var matchingHooks = this.getMatchingHooks(hookType, treeChanges, transition);\n        if (!matchingHooks)\n            return [];\n        var baseHookOptions = {\n            transition: transition,\n            current: transition.options().current,\n        };\n        var makeTransitionHooks = function (hook) {\n            // Fetch the Nodes that caused this hook to match.\n            var matches = hook.matches(treeChanges, transition);\n            // Select the PathNode[] that will be used as TransitionHook context objects\n            var matchingNodes = matches[hookType.criteriaMatchPath.name];\n            // Return an array of HookTuples\n            return matchingNodes.map(function (node) {\n                var _options = extend({\n                    bind: hook.bind,\n                    traceData: { hookType: hookType.name, context: node },\n                }, baseHookOptions);\n                var state = hookType.criteriaMatchPath.scope === TransitionHookScope.STATE ? node.state.self : null;\n                var transitionHook = new TransitionHook(transition, state, hook, _options);\n                return { hook: hook, node: node, transitionHook: transitionHook };\n            });\n        };\n        return matchingHooks\n            .map(makeTransitionHooks)\n            .reduce(unnestR, [])\n            .sort(tupleSort(hookType.reverseSort))\n            .map(function (tuple) { return tuple.transitionHook; });\n    };\n    /**\n     * Finds all RegisteredHooks from:\n     * - The Transition object instance hook registry\n     * - The TransitionService ($transitions) global hook registry\n     *\n     * which matched:\n     * - the eventType\n     * - the matchCriteria (to, from, exiting, retained, entering)\n     *\n     * @returns an array of matched [[RegisteredHook]]s\n     */\n    HookBuilder.prototype.getMatchingHooks = function (hookType, treeChanges, transition) {\n        var isCreate = hookType.hookPhase === TransitionHookPhase.CREATE;\n        // Instance and Global hook registries\n        var $transitions = this.transition.router.transitionService;\n        var registries = isCreate ? [$transitions] : [this.transition, $transitions];\n        return registries\n            .map(function (reg) { return reg.getHooks(hookType.name); }) // Get named hooks from registries\n            .filter(assertPredicate(isArray, \"broken event named: \" + hookType.name)) // Sanity check\n            .reduce(unnestR, []) // Un-nest RegisteredHook[][] to RegisteredHook[] array\n            .filter(function (hook) { return hook.matches(treeChanges, transition); }); // Only those satisfying matchCriteria\n    };\n    return HookBuilder;\n}());\nexport { HookBuilder };\n/**\n * A factory for a sort function for HookTuples.\n *\n * The sort function first compares the PathNode depth (how deep in the state tree a node is), then compares\n * the EventHook priority.\n *\n * @param reverseDepthSort a boolean, when true, reverses the sort order for the node depth\n * @returns a tuple sort function\n */\nfunction tupleSort(reverseDepthSort) {\n    if (reverseDepthSort === void 0) { reverseDepthSort = false; }\n    return function nodeDepthThenPriority(l, r) {\n        var factor = reverseDepthSort ? -1 : 1;\n        var depthDelta = (l.node.state.path.length - r.node.state.path.length) * factor;\n        return depthDelta !== 0 ? depthDelta : r.hook.priority - l.hook.priority;\n    };\n}\n","import { isString, isFunction, Glob, extend, removeFrom, tail, values, identity, mapObj } from '../common';\nimport { // has or is using\nTransitionHookScope, } from './interface';\n/**\n * Determines if the given state matches the matchCriteria\n *\n * @internal\n *\n * @param state a State Object to test against\n * @param criterion\n * - If a string, matchState uses the string as a glob-matcher against the state name\n * - If an array (of strings), matchState uses each string in the array as a glob-matchers against the state name\n *   and returns a positive match if any of the globs match.\n * - If a function, matchState calls the function with the state and returns true if the function's result is truthy.\n * @returns {boolean}\n */\nexport function matchState(state, criterion, transition) {\n    var toMatch = isString(criterion) ? [criterion] : criterion;\n    function matchGlobs(_state) {\n        var globStrings = toMatch;\n        for (var i = 0; i < globStrings.length; i++) {\n            var glob = new Glob(globStrings[i]);\n            if ((glob && glob.matches(_state.name)) || (!glob && globStrings[i] === _state.name)) {\n                return true;\n            }\n        }\n        return false;\n    }\n    var matchFn = (isFunction(toMatch) ? toMatch : matchGlobs);\n    return !!matchFn(state, transition);\n}\n/**\n * The registration data for a registered transition hook\n */\nvar RegisteredHook = /** @class */ (function () {\n    function RegisteredHook(tranSvc, eventType, callback, matchCriteria, removeHookFromRegistry, options) {\n        if (options === void 0) { options = {}; }\n        this.tranSvc = tranSvc;\n        this.eventType = eventType;\n        this.callback = callback;\n        this.matchCriteria = matchCriteria;\n        this.removeHookFromRegistry = removeHookFromRegistry;\n        this.invokeCount = 0;\n        this._deregistered = false;\n        this.priority = options.priority || 0;\n        this.bind = options.bind || null;\n        this.invokeLimit = options.invokeLimit;\n    }\n    /**\n     * Gets the matching [[PathNode]]s\n     *\n     * Given an array of [[PathNode]]s, and a [[HookMatchCriterion]], returns an array containing\n     * the [[PathNode]]s that the criteria matches, or `null` if there were no matching nodes.\n     *\n     * Returning `null` is significant to distinguish between the default\n     * \"match-all criterion value\" of `true` compared to a `() => true` function,\n     * when the nodes is an empty array.\n     *\n     * This is useful to allow a transition match criteria of `entering: true`\n     * to still match a transition, even when `entering === []`.  Contrast that\n     * with `entering: (state) => true` which only matches when a state is actually\n     * being entered.\n     */\n    RegisteredHook.prototype._matchingNodes = function (nodes, criterion, transition) {\n        if (criterion === true)\n            return nodes;\n        var matching = nodes.filter(function (node) { return matchState(node.state, criterion, transition); });\n        return matching.length ? matching : null;\n    };\n    /**\n     * Gets the default match criteria (all `true`)\n     *\n     * Returns an object which has all the criteria match paths as keys and `true` as values, i.e.:\n     *\n     * ```js\n     * {\n     *   to: true,\n     *   from: true,\n     *   entering: true,\n     *   exiting: true,\n     *   retained: true,\n     * }\n     */\n    RegisteredHook.prototype._getDefaultMatchCriteria = function () {\n        return mapObj(this.tranSvc._pluginapi._getPathTypes(), function () { return true; });\n    };\n    /**\n     * Gets matching nodes as [[IMatchingNodes]]\n     *\n     * Create a IMatchingNodes object from the TransitionHookTypes that is roughly equivalent to:\n     *\n     * ```js\n     * let matches: IMatchingNodes = {\n     *   to:       _matchingNodes([tail(treeChanges.to)],   mc.to),\n     *   from:     _matchingNodes([tail(treeChanges.from)], mc.from),\n     *   exiting:  _matchingNodes(treeChanges.exiting,      mc.exiting),\n     *   retained: _matchingNodes(treeChanges.retained,     mc.retained),\n     *   entering: _matchingNodes(treeChanges.entering,     mc.entering),\n     * };\n     * ```\n     */\n    RegisteredHook.prototype._getMatchingNodes = function (treeChanges, transition) {\n        var _this = this;\n        var criteria = extend(this._getDefaultMatchCriteria(), this.matchCriteria);\n        var paths = values(this.tranSvc._pluginapi._getPathTypes());\n        return paths.reduce(function (mn, pathtype) {\n            // STATE scope criteria matches against every node in the path.\n            // TRANSITION scope criteria matches against only the last node in the path\n            var isStateHook = pathtype.scope === TransitionHookScope.STATE;\n            var path = treeChanges[pathtype.name] || [];\n            var nodes = isStateHook ? path : [tail(path)];\n            mn[pathtype.name] = _this._matchingNodes(nodes, criteria[pathtype.name], transition);\n            return mn;\n        }, {});\n    };\n    /**\n     * Determines if this hook's [[matchCriteria]] match the given [[TreeChanges]]\n     *\n     * @returns an IMatchingNodes object, or null. If an IMatchingNodes object is returned, its values\n     * are the matching [[PathNode]]s for each [[HookMatchCriterion]] (to, from, exiting, retained, entering)\n     */\n    RegisteredHook.prototype.matches = function (treeChanges, transition) {\n        var matches = this._getMatchingNodes(treeChanges, transition);\n        // Check if all the criteria matched the TreeChanges object\n        var allMatched = values(matches).every(identity);\n        return allMatched ? matches : null;\n    };\n    RegisteredHook.prototype.deregister = function () {\n        this.removeHookFromRegistry(this);\n        this._deregistered = true;\n    };\n    return RegisteredHook;\n}());\nexport { RegisteredHook };\n/** Return a registration function of the requested type. */\nexport function makeEvent(registry, transitionService, eventType) {\n    // Create the object which holds the registered transition hooks.\n    var _registeredHooks = (registry._registeredHooks = registry._registeredHooks || {});\n    var hooks = (_registeredHooks[eventType.name] = []);\n    var removeHookFn = removeFrom(hooks);\n    // Create hook registration function on the IHookRegistry for the event\n    registry[eventType.name] = hookRegistrationFn;\n    function hookRegistrationFn(matchObject, callback, options) {\n        if (options === void 0) { options = {}; }\n        var registeredHook = new RegisteredHook(transitionService, eventType, callback, matchObject, removeHookFn, options);\n        hooks.push(registeredHook);\n        return registeredHook.deregister.bind(registeredHook);\n    }\n    return hookRegistrationFn;\n}\n","var TransitionHookPhase;\n(function (TransitionHookPhase) {\n    TransitionHookPhase[TransitionHookPhase[\"CREATE\"] = 0] = \"CREATE\";\n    TransitionHookPhase[TransitionHookPhase[\"BEFORE\"] = 1] = \"BEFORE\";\n    TransitionHookPhase[TransitionHookPhase[\"RUN\"] = 2] = \"RUN\";\n    TransitionHookPhase[TransitionHookPhase[\"SUCCESS\"] = 3] = \"SUCCESS\";\n    TransitionHookPhase[TransitionHookPhase[\"ERROR\"] = 4] = \"ERROR\";\n})(TransitionHookPhase || (TransitionHookPhase = {}));\nvar TransitionHookScope;\n(function (TransitionHookScope) {\n    TransitionHookScope[TransitionHookScope[\"TRANSITION\"] = 0] = \"TRANSITION\";\n    TransitionHookScope[TransitionHookScope[\"STATE\"] = 1] = \"STATE\";\n})(TransitionHookScope || (TransitionHookScope = {}));\nexport { TransitionHookPhase, TransitionHookScope };\n","'use strict';\nimport { extend, silentRejection } from '../common/common';\nimport { stringify } from '../common/strings';\nimport { is } from '../common/hof';\n/** An enum for Transition Rejection reasons */\nvar RejectType;\n(function (RejectType) {\n    /**\n     * A new transition superseded this one.\n     *\n     * While this transition was running, a new transition started.\n     * This transition is cancelled because it was superseded by new transition.\n     */\n    RejectType[RejectType[\"SUPERSEDED\"] = 2] = \"SUPERSEDED\";\n    /**\n     * The transition was aborted\n     *\n     * The transition was aborted by a hook which returned `false`\n     */\n    RejectType[RejectType[\"ABORTED\"] = 3] = \"ABORTED\";\n    /**\n     * The transition was invalid\n     *\n     * The transition was never started because it was invalid\n     */\n    RejectType[RejectType[\"INVALID\"] = 4] = \"INVALID\";\n    /**\n     * The transition was ignored\n     *\n     * The transition was ignored because it would have no effect.\n     *\n     * Either:\n     *\n     * - The transition is targeting the current state and parameter values\n     * - The transition is targeting the same state and parameter values as the currently running transition.\n     */\n    RejectType[RejectType[\"IGNORED\"] = 5] = \"IGNORED\";\n    /**\n     * The transition errored.\n     *\n     * This generally means a hook threw an error or returned a rejected promise\n     */\n    RejectType[RejectType[\"ERROR\"] = 6] = \"ERROR\";\n})(RejectType || (RejectType = {}));\nexport { RejectType };\n/** @internal */\nvar id = 0;\nvar Rejection = /** @class */ (function () {\n    function Rejection(type, message, detail) {\n        /** @internal */\n        this.$id = id++;\n        this.type = type;\n        this.message = message;\n        this.detail = detail;\n    }\n    /** Returns true if the obj is a rejected promise created from the `asPromise` factory */\n    Rejection.isRejectionPromise = function (obj) {\n        return obj && typeof obj.then === 'function' && is(Rejection)(obj._transitionRejection);\n    };\n    /** Returns a Rejection due to transition superseded */\n    Rejection.superseded = function (detail, options) {\n        var message = 'The transition has been superseded by a different transition';\n        var rejection = new Rejection(RejectType.SUPERSEDED, message, detail);\n        if (options && options.redirected) {\n            rejection.redirected = true;\n        }\n        return rejection;\n    };\n    /** Returns a Rejection due to redirected transition */\n    Rejection.redirected = function (detail) {\n        return Rejection.superseded(detail, { redirected: true });\n    };\n    /** Returns a Rejection due to invalid transition */\n    Rejection.invalid = function (detail) {\n        var message = 'This transition is invalid';\n        return new Rejection(RejectType.INVALID, message, detail);\n    };\n    /** Returns a Rejection due to ignored transition */\n    Rejection.ignored = function (detail) {\n        var message = 'The transition was ignored';\n        return new Rejection(RejectType.IGNORED, message, detail);\n    };\n    /** Returns a Rejection due to aborted transition */\n    Rejection.aborted = function (detail) {\n        var message = 'The transition has been aborted';\n        return new Rejection(RejectType.ABORTED, message, detail);\n    };\n    /** Returns a Rejection due to aborted transition */\n    Rejection.errored = function (detail) {\n        var message = 'The transition errored';\n        return new Rejection(RejectType.ERROR, message, detail);\n    };\n    /**\n     * Returns a Rejection\n     *\n     * Normalizes a value as a Rejection.\n     * If the value is already a Rejection, returns it.\n     * Otherwise, wraps and returns the value as a Rejection (Rejection type: ERROR).\n     *\n     * @returns `detail` if it is already a `Rejection`, else returns an ERROR Rejection.\n     */\n    Rejection.normalize = function (detail) {\n        return is(Rejection)(detail) ? detail : Rejection.errored(detail);\n    };\n    Rejection.prototype.toString = function () {\n        var detailString = function (d) { return (d && d.toString !== Object.prototype.toString ? d.toString() : stringify(d)); };\n        var detail = detailString(this.detail);\n        var _a = this, $id = _a.$id, type = _a.type, message = _a.message;\n        return \"Transition Rejection($id: \" + $id + \" type: \" + type + \", message: \" + message + \", detail: \" + detail + \")\";\n    };\n    Rejection.prototype.toPromise = function () {\n        return extend(silentRejection(this), { _transitionRejection: this });\n    };\n    return Rejection;\n}());\nexport { Rejection };\n","import { trace } from '../common/trace';\nimport { services } from '../common/coreservices';\nimport { stringify } from '../common/strings';\nimport { map, find, extend, mergeR, tail, omit, arrayTuples, unnestR, identity, anyTrueR } from '../common/common';\nimport { isObject, isUndefined } from '../common/predicates';\nimport { prop, propEq, val, not, is } from '../common/hof';\nimport { TransitionHookPhase, } from './interface'; // has or is using\nimport { TransitionHook } from './transitionHook';\nimport { matchState, makeEvent } from './hookRegistry';\nimport { HookBuilder } from './hookBuilder';\nimport { PathUtils } from '../path/pathUtils';\nimport { Param } from '../params/param';\nimport { Resolvable } from '../resolve/resolvable';\nimport { ResolveContext } from '../resolve/resolveContext';\nimport { Rejection } from './rejectFactory';\nimport { flattenR, uniqR } from '../common';\n/** @internal */\nvar stateSelf = prop('self');\n/**\n * Represents a transition between two states.\n *\n * When navigating to a state, we are transitioning **from** the current state **to** the new state.\n *\n * This object contains all contextual information about the to/from states, parameters, resolves.\n * It has information about all states being entered and exited as a result of the transition.\n */\nvar Transition = /** @class */ (function () {\n    /**\n     * Creates a new Transition object.\n     *\n     * If the target state is not valid, an error is thrown.\n     *\n     * @internal\n     *\n     * @param fromPath The path of [[PathNode]]s from which the transition is leaving.  The last node in the `fromPath`\n     *        encapsulates the \"from state\".\n     * @param targetState The target state and parameters being transitioned to (also, the transition options)\n     * @param router The [[UIRouter]] instance\n     * @internal\n     */\n    function Transition(fromPath, targetState, router) {\n        var _this = this;\n        /** @internal */\n        this._deferred = services.$q.defer();\n        /**\n         * This promise is resolved or rejected based on the outcome of the Transition.\n         *\n         * When the transition is successful, the promise is resolved\n         * When the transition is unsuccessful, the promise is rejected with the [[Rejection]] or javascript error\n         */\n        this.promise = this._deferred.promise;\n        /** @internal Holds the hook registration functions such as those passed to Transition.onStart() */\n        this._registeredHooks = {};\n        /** @internal */\n        this._hookBuilder = new HookBuilder(this);\n        /** Checks if this transition is currently active/running. */\n        this.isActive = function () { return _this.router.globals.transition === _this; };\n        this.router = router;\n        this._targetState = targetState;\n        if (!targetState.valid()) {\n            throw new Error(targetState.error());\n        }\n        // current() is assumed to come from targetState.options, but provide a naive implementation otherwise.\n        this._options = extend({ current: val(this) }, targetState.options());\n        this.$id = router.transitionService._transitionCount++;\n        var toPath = PathUtils.buildToPath(fromPath, targetState);\n        this._treeChanges = PathUtils.treeChanges(fromPath, toPath, this._options.reloadState);\n        this.createTransitionHookRegFns();\n        var onCreateHooks = this._hookBuilder.buildHooksForPhase(TransitionHookPhase.CREATE);\n        TransitionHook.invokeHooks(onCreateHooks, function () { return null; });\n        this.applyViewConfigs(router);\n    }\n    /** @internal */\n    Transition.prototype.onBefore = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    Transition.prototype.onStart = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    Transition.prototype.onExit = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    Transition.prototype.onRetain = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    Transition.prototype.onEnter = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    Transition.prototype.onFinish = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    Transition.prototype.onSuccess = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    Transition.prototype.onError = function (criteria, callback, options) {\n        return;\n    };\n    /** @internal\n     * Creates the transition-level hook registration functions\n     * (which can then be used to register hooks)\n     */\n    Transition.prototype.createTransitionHookRegFns = function () {\n        var _this = this;\n        this.router.transitionService._pluginapi\n            ._getEvents()\n            .filter(function (type) { return type.hookPhase !== TransitionHookPhase.CREATE; })\n            .forEach(function (type) { return makeEvent(_this, _this.router.transitionService, type); });\n    };\n    /** @internal */\n    Transition.prototype.getHooks = function (hookName) {\n        return this._registeredHooks[hookName];\n    };\n    Transition.prototype.applyViewConfigs = function (router) {\n        var enteringStates = this._treeChanges.entering.map(function (node) { return node.state; });\n        PathUtils.applyViewConfigs(router.transitionService.$view, this._treeChanges.to, enteringStates);\n    };\n    /**\n     * @internal\n     * @returns the internal from [State] object\n     */\n    Transition.prototype.$from = function () {\n        return tail(this._treeChanges.from).state;\n    };\n    /**\n     * @internal\n     * @returns the internal to [State] object\n     */\n    Transition.prototype.$to = function () {\n        return tail(this._treeChanges.to).state;\n    };\n    /**\n     * Returns the \"from state\"\n     *\n     * Returns the state that the transition is coming *from*.\n     *\n     * @returns The state declaration object for the Transition's (\"from state\").\n     */\n    Transition.prototype.from = function () {\n        return this.$from().self;\n    };\n    /**\n     * Returns the \"to state\"\n     *\n     * Returns the state that the transition is going *to*.\n     *\n     * @returns The state declaration object for the Transition's target state (\"to state\").\n     */\n    Transition.prototype.to = function () {\n        return this.$to().self;\n    };\n    /**\n     * Gets the Target State\n     *\n     * A transition's [[TargetState]] encapsulates the [[to]] state, the [[params]], and the [[options]] as a single object.\n     *\n     * @returns the [[TargetState]] of this Transition\n     */\n    Transition.prototype.targetState = function () {\n        return this._targetState;\n    };\n    /**\n     * Determines whether two transitions are equivalent.\n     * @deprecated\n     */\n    Transition.prototype.is = function (compare) {\n        if (compare instanceof Transition) {\n            // TODO: Also compare parameters\n            return this.is({ to: compare.$to().name, from: compare.$from().name });\n        }\n        return !((compare.to && !matchState(this.$to(), compare.to, this)) ||\n            (compare.from && !matchState(this.$from(), compare.from, this)));\n    };\n    Transition.prototype.params = function (pathname) {\n        if (pathname === void 0) { pathname = 'to'; }\n        return Object.freeze(this._treeChanges[pathname].map(prop('paramValues')).reduce(mergeR, {}));\n    };\n    Transition.prototype.paramsChanged = function () {\n        var fromParams = this.params('from');\n        var toParams = this.params('to');\n        // All the parameters declared on both the \"to\" and \"from\" paths\n        var allParamDescriptors = []\n            .concat(this._treeChanges.to)\n            .concat(this._treeChanges.from)\n            .map(function (pathNode) { return pathNode.paramSchema; })\n            .reduce(flattenR, [])\n            .reduce(uniqR, []);\n        var changedParamDescriptors = Param.changed(allParamDescriptors, fromParams, toParams);\n        return changedParamDescriptors.reduce(function (changedValues, descriptor) {\n            changedValues[descriptor.id] = toParams[descriptor.id];\n            return changedValues;\n        }, {});\n    };\n    /**\n     * Creates a [[UIInjector]] Dependency Injector\n     *\n     * Returns a Dependency Injector for the Transition's target state (to state).\n     * The injector provides resolve values which the target state has access to.\n     *\n     * The `UIInjector` can also provide values from the native root/global injector (ng1/ng2).\n     *\n     * #### Example:\n     * ```js\n     * .onEnter({ entering: 'myState' }, trans => {\n     *   var myResolveValue = trans.injector().get('myResolve');\n     *   // Inject a global service from the global/native injector (if it exists)\n     *   var MyService = trans.injector().get('MyService');\n     * })\n     * ```\n     *\n     * In some cases (such as `onBefore`), you may need access to some resolve data but it has not yet been fetched.\n     * You can use [[UIInjector.getAsync]] to get a promise for the data.\n     * #### Example:\n     * ```js\n     * .onBefore({}, trans => {\n     *   return trans.injector().getAsync('myResolve').then(myResolveValue =>\n     *     return myResolveValue !== 'ABORT';\n     *   });\n     * });\n     * ```\n     *\n     * If a `state` is provided, the injector that is returned will be limited to resolve values that the provided state has access to.\n     * This can be useful if both a parent state `foo` and a child state `foo.bar` have both defined a resolve such as `data`.\n     * #### Example:\n     * ```js\n     * .onEnter({ to: 'foo.bar' }, trans => {\n     *   // returns result of `foo` state's `myResolve` resolve\n     *   // even though `foo.bar` also has a `myResolve` resolve\n     *   var fooData = trans.injector('foo').get('myResolve');\n     * });\n     * ```\n     *\n     * If you need resolve data from the exiting states, pass `'from'` as `pathName`.\n     * The resolve data from the `from` path will be returned.\n     * #### Example:\n     * ```js\n     * .onExit({ exiting: 'foo.bar' }, trans => {\n     *   // Gets the resolve value of `myResolve` from the state being exited\n     *   var fooData = trans.injector(null, 'from').get('myResolve');\n     * });\n     * ```\n     *\n     *\n     * @param state Limits the resolves provided to only the resolves the provided state has access to.\n     * @param pathName Default: `'to'`: Chooses the path for which to create the injector. Use this to access resolves for `exiting` states.\n     *\n     * @returns a [[UIInjector]]\n     */\n    Transition.prototype.injector = function (state, pathName) {\n        if (pathName === void 0) { pathName = 'to'; }\n        var path = this._treeChanges[pathName];\n        if (state)\n            path = PathUtils.subPath(path, function (node) { return node.state === state || node.state.name === state; });\n        return new ResolveContext(path).injector();\n    };\n    /**\n     * Gets all available resolve tokens (keys)\n     *\n     * This method can be used in conjunction with [[injector]] to inspect the resolve values\n     * available to the Transition.\n     *\n     * This returns all the tokens defined on [[StateDeclaration.resolve]] blocks, for the states\n     * in the Transition's [[TreeChanges.to]] path.\n     *\n     * #### Example:\n     * This example logs all resolve values\n     * ```js\n     * let tokens = trans.getResolveTokens();\n     * tokens.forEach(token => console.log(token + \" = \" + trans.injector().get(token)));\n     * ```\n     *\n     * #### Example:\n     * This example creates promises for each resolve value.\n     * This triggers fetches of resolves (if any have not yet been fetched).\n     * When all promises have all settled, it logs the resolve values.\n     * ```js\n     * let tokens = trans.getResolveTokens();\n     * let promise = tokens.map(token => trans.injector().getAsync(token));\n     * Promise.all(promises).then(values => console.log(\"Resolved values: \" + values));\n     * ```\n     *\n     * Note: Angular 1 users whould use `$q.all()`\n     *\n     * @param pathname resolve context's path name (e.g., `to` or `from`)\n     *\n     * @returns an array of resolve tokens (keys)\n     */\n    Transition.prototype.getResolveTokens = function (pathname) {\n        if (pathname === void 0) { pathname = 'to'; }\n        return new ResolveContext(this._treeChanges[pathname]).getTokens();\n    };\n    /**\n     * Dynamically adds a new [[Resolvable]] (i.e., [[StateDeclaration.resolve]]) to this transition.\n     *\n     * Allows a transition hook to dynamically add a Resolvable to this Transition.\n     *\n     * Use the [[Transition.injector]] to retrieve the resolved data in subsequent hooks ([[UIInjector.get]]).\n     *\n     * If a `state` argument is provided, the Resolvable is processed when that state is being entered.\n     * If no `state` is provided then the root state is used.\n     * If the given `state` has already been entered, the Resolvable is processed when any child state is entered.\n     * If no child states will be entered, the Resolvable is processed during the `onFinish` phase of the Transition.\n     *\n     * The `state` argument also scopes the resolved data.\n     * The resolved data is available from the injector for that `state` and any children states.\n     *\n     * #### Example:\n     * ```js\n     * transitionService.onBefore({}, transition => {\n     *   transition.addResolvable({\n     *     token: 'myResolve',\n     *     deps: ['MyService'],\n     *     resolveFn: myService => myService.getData()\n     *   });\n     * });\n     * ```\n     *\n     * @param resolvable a [[ResolvableLiteral]] object (or a [[Resolvable]])\n     * @param state the state in the \"to path\" which should receive the new resolve (otherwise, the root state)\n     */\n    Transition.prototype.addResolvable = function (resolvable, state) {\n        if (state === void 0) { state = ''; }\n        resolvable = is(Resolvable)(resolvable) ? resolvable : new Resolvable(resolvable);\n        var stateName = typeof state === 'string' ? state : state.name;\n        var topath = this._treeChanges.to;\n        var targetNode = find(topath, function (node) { return node.state.name === stateName; });\n        var resolveContext = new ResolveContext(topath);\n        resolveContext.addResolvables([resolvable], targetNode.state);\n    };\n    /**\n     * Gets the transition from which this transition was redirected.\n     *\n     * If the current transition is a redirect, this method returns the transition that was redirected.\n     *\n     * #### Example:\n     * ```js\n     * let transitionA = $state.go('A').transition\n     * transitionA.onStart({}, () => $state.target('B'));\n     * $transitions.onSuccess({ to: 'B' }, (trans) => {\n     *   trans.to().name === 'B'; // true\n     *   trans.redirectedFrom() === transitionA; // true\n     * });\n     * ```\n     *\n     * @returns The previous Transition, or null if this Transition is not the result of a redirection\n     */\n    Transition.prototype.redirectedFrom = function () {\n        return this._options.redirectedFrom || null;\n    };\n    /**\n     * Gets the original transition in a redirect chain\n     *\n     * A transition might belong to a long chain of multiple redirects.\n     * This method walks the [[redirectedFrom]] chain back to the original (first) transition in the chain.\n     *\n     * #### Example:\n     * ```js\n     * // states\n     * registry.register({ name: 'A', redirectTo: 'B' });\n     * registry.register({ name: 'B', redirectTo: 'C' });\n     * registry.register({ name: 'C', redirectTo: 'D' });\n     * registry.register({ name: 'D' });\n     *\n     * let transitionA = $state.go('A').transition\n     *\n     * $transitions.onSuccess({ to: 'D' }, (trans) => {\n     *   trans.to().name === 'D'; // true\n     *   trans.redirectedFrom().to().name === 'C'; // true\n     *   trans.originalTransition() === transitionA; // true\n     *   trans.originalTransition().to().name === 'A'; // true\n     * });\n     * ```\n     *\n     * @returns The original Transition that started a redirect chain\n     */\n    Transition.prototype.originalTransition = function () {\n        var rf = this.redirectedFrom();\n        return (rf && rf.originalTransition()) || this;\n    };\n    /**\n     * Get the transition options\n     *\n     * @returns the options for this Transition.\n     */\n    Transition.prototype.options = function () {\n        return this._options;\n    };\n    /**\n     * Gets the states being entered.\n     *\n     * @returns an array of states that will be entered during this transition.\n     */\n    Transition.prototype.entering = function () {\n        return map(this._treeChanges.entering, prop('state')).map(stateSelf);\n    };\n    /**\n     * Gets the states being exited.\n     *\n     * @returns an array of states that will be exited during this transition.\n     */\n    Transition.prototype.exiting = function () {\n        return map(this._treeChanges.exiting, prop('state')).map(stateSelf).reverse();\n    };\n    /**\n     * Gets the states being retained.\n     *\n     * @returns an array of states that are already entered from a previous Transition, that will not be\n     *    exited during this Transition\n     */\n    Transition.prototype.retained = function () {\n        return map(this._treeChanges.retained, prop('state')).map(stateSelf);\n    };\n    /**\n     * Get the [[ViewConfig]]s associated with this Transition\n     *\n     * Each state can define one or more views (template/controller), which are encapsulated as `ViewConfig` objects.\n     * This method fetches the `ViewConfigs` for a given path in the Transition (e.g., \"to\" or \"entering\").\n     *\n     * @param pathname the name of the path to fetch views for:\n     *   (`'to'`, `'from'`, `'entering'`, `'exiting'`, `'retained'`)\n     * @param state If provided, only returns the `ViewConfig`s for a single state in the path\n     *\n     * @returns a list of ViewConfig objects for the given path.\n     */\n    Transition.prototype.views = function (pathname, state) {\n        if (pathname === void 0) { pathname = 'entering'; }\n        var path = this._treeChanges[pathname];\n        path = !state ? path : path.filter(propEq('state', state));\n        return path.map(prop('views')).filter(identity).reduce(unnestR, []);\n    };\n    Transition.prototype.treeChanges = function (pathname) {\n        return pathname ? this._treeChanges[pathname] : this._treeChanges;\n    };\n    /**\n     * Creates a new transition that is a redirection of the current one.\n     *\n     * This transition can be returned from a [[TransitionService]] hook to\n     * redirect a transition to a new state and/or set of parameters.\n     *\n     * @internal\n     *\n     * @returns Returns a new [[Transition]] instance.\n     */\n    Transition.prototype.redirect = function (targetState) {\n        var redirects = 1, trans = this;\n        // tslint:disable-next-line:no-conditional-assignment\n        while ((trans = trans.redirectedFrom()) != null) {\n            if (++redirects > 20)\n                throw new Error(\"Too many consecutive Transition redirects (20+)\");\n        }\n        var redirectOpts = { redirectedFrom: this, source: 'redirect' };\n        // If the original transition was caused by URL sync, then use { location: 'replace' }\n        // on the new transition (unless the target state explicitly specifies location: false).\n        // This causes the original url to be replaced with the url for the redirect target\n        // so the original url disappears from the browser history.\n        if (this.options().source === 'url' && targetState.options().location !== false) {\n            redirectOpts.location = 'replace';\n        }\n        var newOptions = extend({}, this.options(), targetState.options(), redirectOpts);\n        targetState = targetState.withOptions(newOptions, true);\n        var newTransition = this.router.transitionService.create(this._treeChanges.from, targetState);\n        var originalEnteringNodes = this._treeChanges.entering;\n        var redirectEnteringNodes = newTransition._treeChanges.entering;\n        // --- Re-use resolve data from original transition ---\n        // When redirecting from a parent state to a child state where the parent parameter values haven't changed\n        // (because of the redirect), the resolves fetched by the original transition are still valid in the\n        // redirected transition.\n        //\n        // This allows you to define a redirect on a parent state which depends on an async resolve value.\n        // You can wait for the resolve, then redirect to a child state based on the result.\n        // The redirected transition does not have to re-fetch the resolve.\n        // ---------------------------------------------------------\n        var nodeIsReloading = function (reloadState) { return function (node) {\n            return reloadState && node.state.includes[reloadState.name];\n        }; };\n        // Find any \"entering\" nodes in the redirect path that match the original path and aren't being reloaded\n        var matchingEnteringNodes = PathUtils.matching(redirectEnteringNodes, originalEnteringNodes, PathUtils.nonDynamicParams).filter(not(nodeIsReloading(targetState.options().reloadState)));\n        // Use the existing (possibly pre-resolved) resolvables for the matching entering nodes.\n        matchingEnteringNodes.forEach(function (node, idx) {\n            node.resolvables = originalEnteringNodes[idx].resolvables;\n        });\n        return newTransition;\n    };\n    /** @internal If a transition doesn't exit/enter any states, returns any [[Param]] whose value changed */\n    Transition.prototype._changedParams = function () {\n        var tc = this._treeChanges;\n        /** Return undefined if it's not a \"dynamic\" transition, for the following reasons */\n        // If user explicitly wants a reload\n        if (this._options.reload)\n            return undefined;\n        // If any states are exiting or entering\n        if (tc.exiting.length || tc.entering.length)\n            return undefined;\n        // If to/from path lengths differ\n        if (tc.to.length !== tc.from.length)\n            return undefined;\n        // If the to/from paths are different\n        var pathsDiffer = arrayTuples(tc.to, tc.from)\n            .map(function (tuple) { return tuple[0].state !== tuple[1].state; })\n            .reduce(anyTrueR, false);\n        if (pathsDiffer)\n            return undefined;\n        // Find any parameter values that differ\n        var nodeSchemas = tc.to.map(function (node) { return node.paramSchema; });\n        var _a = [tc.to, tc.from].map(function (path) { return path.map(function (x) { return x.paramValues; }); }), toValues = _a[0], fromValues = _a[1];\n        var tuples = arrayTuples(nodeSchemas, toValues, fromValues);\n        return tuples.map(function (_a) {\n            var schema = _a[0], toVals = _a[1], fromVals = _a[2];\n            return Param.changed(schema, toVals, fromVals);\n        }).reduce(unnestR, []);\n    };\n    /**\n     * Returns true if the transition is dynamic.\n     *\n     * A transition is dynamic if no states are entered nor exited, but at least one dynamic parameter has changed.\n     *\n     * @returns true if the Transition is dynamic\n     */\n    Transition.prototype.dynamic = function () {\n        var changes = this._changedParams();\n        return !changes ? false : changes.map(function (x) { return x.dynamic; }).reduce(anyTrueR, false);\n    };\n    /**\n     * Returns true if the transition is ignored.\n     *\n     * A transition is ignored if no states are entered nor exited, and no parameter values have changed.\n     *\n     * @returns true if the Transition is ignored.\n     */\n    Transition.prototype.ignored = function () {\n        return !!this._ignoredReason();\n    };\n    /** @internal */\n    Transition.prototype._ignoredReason = function () {\n        var pending = this.router.globals.transition;\n        var reloadState = this._options.reloadState;\n        var same = function (pathA, pathB) {\n            if (pathA.length !== pathB.length)\n                return false;\n            var matching = PathUtils.matching(pathA, pathB);\n            return pathA.length === matching.filter(function (node) { return !reloadState || !node.state.includes[reloadState.name]; }).length;\n        };\n        var newTC = this.treeChanges();\n        var pendTC = pending && pending.treeChanges();\n        if (pendTC && same(pendTC.to, newTC.to) && same(pendTC.exiting, newTC.exiting))\n            return 'SameAsPending';\n        if (newTC.exiting.length === 0 && newTC.entering.length === 0 && same(newTC.from, newTC.to))\n            return 'SameAsCurrent';\n    };\n    /**\n     * Runs the transition\n     *\n     * This method is generally called from the [[StateService.transitionTo]]\n     *\n     * @internal\n     *\n     * @returns a promise for a successful transition.\n     */\n    Transition.prototype.run = function () {\n        var _this = this;\n        var runAllHooks = TransitionHook.runAllHooks;\n        // Gets transition hooks array for the given phase\n        var getHooksFor = function (phase) { return _this._hookBuilder.buildHooksForPhase(phase); };\n        // When the chain is complete, then resolve or reject the deferred\n        var transitionSuccess = function () {\n            trace.traceSuccess(_this.$to(), _this);\n            _this.success = true;\n            _this._deferred.resolve(_this.to());\n            runAllHooks(getHooksFor(TransitionHookPhase.SUCCESS));\n        };\n        var transitionError = function (reason) {\n            trace.traceError(reason, _this);\n            _this.success = false;\n            _this._deferred.reject(reason);\n            _this._error = reason;\n            runAllHooks(getHooksFor(TransitionHookPhase.ERROR));\n        };\n        var runTransition = function () {\n            // Wait to build the RUN hook chain until the BEFORE hooks are done\n            // This allows a BEFORE hook to dynamically add additional RUN hooks via the Transition object.\n            var allRunHooks = getHooksFor(TransitionHookPhase.RUN);\n            var done = function () { return services.$q.when(undefined); };\n            return TransitionHook.invokeHooks(allRunHooks, done);\n        };\n        var startTransition = function () {\n            var globals = _this.router.globals;\n            globals.lastStartedTransitionId = _this.$id;\n            globals.transition = _this;\n            globals.transitionHistory.enqueue(_this);\n            trace.traceTransitionStart(_this);\n            return services.$q.when(undefined);\n        };\n        var allBeforeHooks = getHooksFor(TransitionHookPhase.BEFORE);\n        TransitionHook.invokeHooks(allBeforeHooks, startTransition)\n            .then(runTransition)\n            .then(transitionSuccess, transitionError);\n        return this.promise;\n    };\n    /**\n     * Checks if the Transition is valid\n     *\n     * @returns true if the Transition is valid\n     */\n    Transition.prototype.valid = function () {\n        return !this.error() || this.success !== undefined;\n    };\n    /**\n     * Aborts this transition\n     *\n     * Imperative API to abort a Transition.\n     * This only applies to Transitions that are not yet complete.\n     */\n    Transition.prototype.abort = function () {\n        // Do not set flag if the transition is already complete\n        if (isUndefined(this.success)) {\n            this._aborted = true;\n        }\n    };\n    /**\n     * The Transition error reason.\n     *\n     * If the transition is invalid (and could not be run), returns the reason the transition is invalid.\n     * If the transition was valid and ran, but was not successful, returns the reason the transition failed.\n     *\n     * @returns a transition rejection explaining why the transition is invalid, or the reason the transition failed.\n     */\n    Transition.prototype.error = function () {\n        var state = this.$to();\n        if (state.self.abstract) {\n            return Rejection.invalid(\"Cannot transition to abstract state '\" + state.name + \"'\");\n        }\n        var paramDefs = state.parameters();\n        var values = this.params();\n        var invalidParams = paramDefs.filter(function (param) { return !param.validates(values[param.id]); });\n        if (invalidParams.length) {\n            var invalidValues = invalidParams.map(function (param) { return \"[\" + param.id + \":\" + stringify(values[param.id]) + \"]\"; }).join(', ');\n            var detail = \"The following parameter values are not valid for state '\" + state.name + \"': \" + invalidValues;\n            return Rejection.invalid(detail);\n        }\n        if (this.success === false)\n            return this._error;\n    };\n    /**\n     * A string representation of the Transition\n     *\n     * @returns A string representation of the Transition\n     */\n    Transition.prototype.toString = function () {\n        var fromStateOrName = this.from();\n        var toStateOrName = this.to();\n        var avoidEmptyHash = function (params) {\n            return params['#'] !== null && params['#'] !== undefined ? params : omit(params, ['#']);\n        };\n        // (X) means the to state is invalid.\n        var id = this.$id, from = isObject(fromStateOrName) ? fromStateOrName.name : fromStateOrName, fromParams = stringify(avoidEmptyHash(this._treeChanges.from.map(prop('paramValues')).reduce(mergeR, {}))), toValid = this.valid() ? '' : '(X) ', to = isObject(toStateOrName) ? toStateOrName.name : toStateOrName, toParams = stringify(avoidEmptyHash(this.params()));\n        return \"Transition#\" + id + \"( '\" + from + \"'\" + fromParams + \" -> \" + toValid + \"'\" + to + \"'\" + toParams + \" )\";\n    };\n    /** @internal */\n    Transition.diToken = Transition;\n    return Transition;\n}());\nexport { Transition };\n","import { TransitionHook } from './transitionHook';\n/**\n * This class defines a type of hook, such as `onBefore` or `onEnter`.\n * Plugins can define custom hook types, such as sticky states does for `onInactive`.\n */\nvar TransitionEventType = /** @class */ (function () {\n    /* tslint:disable:no-inferrable-types */\n    function TransitionEventType(name, hookPhase, hookOrder, criteriaMatchPath, reverseSort, getResultHandler, getErrorHandler, synchronous) {\n        if (reverseSort === void 0) { reverseSort = false; }\n        if (getResultHandler === void 0) { getResultHandler = TransitionHook.HANDLE_RESULT; }\n        if (getErrorHandler === void 0) { getErrorHandler = TransitionHook.REJECT_ERROR; }\n        if (synchronous === void 0) { synchronous = false; }\n        this.name = name;\n        this.hookPhase = hookPhase;\n        this.hookOrder = hookOrder;\n        this.criteriaMatchPath = criteriaMatchPath;\n        this.reverseSort = reverseSort;\n        this.getResultHandler = getResultHandler;\n        this.getErrorHandler = getErrorHandler;\n        this.synchronous = synchronous;\n    }\n    return TransitionEventType;\n}());\nexport { TransitionEventType };\n","import { TransitionHookPhase } from './interface';\nimport { defaults, noop, silentRejection } from '../common/common';\nimport { fnToString, maxLength } from '../common/strings';\nimport { isPromise } from '../common/predicates';\nimport { is, parse } from '../common/hof';\nimport { trace } from '../common/trace';\nimport { services } from '../common/coreservices';\nimport { Rejection } from './rejectFactory';\nimport { TargetState } from '../state/targetState';\nvar defaultOptions = {\n    current: noop,\n    transition: null,\n    traceData: {},\n    bind: null,\n};\nvar TransitionHook = /** @class */ (function () {\n    function TransitionHook(transition, stateContext, registeredHook, options) {\n        var _this = this;\n        this.transition = transition;\n        this.stateContext = stateContext;\n        this.registeredHook = registeredHook;\n        this.options = options;\n        this.isSuperseded = function () { return _this.type.hookPhase === TransitionHookPhase.RUN && !_this.options.transition.isActive(); };\n        this.options = defaults(options, defaultOptions);\n        this.type = registeredHook.eventType;\n    }\n    /**\n     * Chains together an array of TransitionHooks.\n     *\n     * Given a list of [[TransitionHook]] objects, chains them together.\n     * Each hook is invoked after the previous one completes.\n     *\n     * #### Example:\n     * ```js\n     * var hooks: TransitionHook[] = getHooks();\n     * let promise: Promise<any> = TransitionHook.chain(hooks);\n     *\n     * promise.then(handleSuccess, handleError);\n     * ```\n     *\n     * @param hooks the list of hooks to chain together\n     * @param waitFor if provided, the chain is `.then()`'ed off this promise\n     * @returns a `Promise` for sequentially invoking the hooks (in order)\n     */\n    TransitionHook.chain = function (hooks, waitFor) {\n        // Chain the next hook off the previous\n        var createHookChainR = function (prev, nextHook) { return prev.then(function () { return nextHook.invokeHook(); }); };\n        return hooks.reduce(createHookChainR, waitFor || services.$q.when());\n    };\n    /**\n     * Invokes all the provided TransitionHooks, in order.\n     * Each hook's return value is checked.\n     * If any hook returns a promise, then the rest of the hooks are chained off that promise, and the promise is returned.\n     * If no hook returns a promise, then all hooks are processed synchronously.\n     *\n     * @param hooks the list of TransitionHooks to invoke\n     * @param doneCallback a callback that is invoked after all the hooks have successfully completed\n     *\n     * @returns a promise for the async result, or the result of the callback\n     */\n    TransitionHook.invokeHooks = function (hooks, doneCallback) {\n        for (var idx = 0; idx < hooks.length; idx++) {\n            var hookResult = hooks[idx].invokeHook();\n            if (isPromise(hookResult)) {\n                var remainingHooks = hooks.slice(idx + 1);\n                return TransitionHook.chain(remainingHooks, hookResult).then(doneCallback);\n            }\n        }\n        return doneCallback();\n    };\n    /**\n     * Run all TransitionHooks, ignoring their return value.\n     */\n    TransitionHook.runAllHooks = function (hooks) {\n        hooks.forEach(function (hook) { return hook.invokeHook(); });\n    };\n    TransitionHook.prototype.logError = function (err) {\n        this.transition.router.stateService.defaultErrorHandler()(err);\n    };\n    TransitionHook.prototype.invokeHook = function () {\n        var _this = this;\n        var hook = this.registeredHook;\n        if (hook._deregistered)\n            return;\n        var notCurrent = this.getNotCurrentRejection();\n        if (notCurrent)\n            return notCurrent;\n        var options = this.options;\n        trace.traceHookInvocation(this, this.transition, options);\n        var invokeCallback = function () { return hook.callback.call(options.bind, _this.transition, _this.stateContext); };\n        var normalizeErr = function (err) { return Rejection.normalize(err).toPromise(); };\n        var handleError = function (err) { return hook.eventType.getErrorHandler(_this)(err); };\n        var handleResult = function (result) { return hook.eventType.getResultHandler(_this)(result); };\n        try {\n            var result = invokeCallback();\n            if (!this.type.synchronous && isPromise(result)) {\n                return result.catch(normalizeErr).then(handleResult, handleError);\n            }\n            else {\n                return handleResult(result);\n            }\n        }\n        catch (err) {\n            // If callback throws (synchronously)\n            return handleError(Rejection.normalize(err));\n        }\n        finally {\n            if (hook.invokeLimit && ++hook.invokeCount >= hook.invokeLimit) {\n                hook.deregister();\n            }\n        }\n    };\n    /**\n     * This method handles the return value of a Transition Hook.\n     *\n     * A hook can return false (cancel), a TargetState (redirect),\n     * or a promise (which may later resolve to false or a redirect)\n     *\n     * This also handles \"transition superseded\" -- when a new transition\n     * was started while the hook was still running\n     */\n    TransitionHook.prototype.handleHookResult = function (result) {\n        var _this = this;\n        var notCurrent = this.getNotCurrentRejection();\n        if (notCurrent)\n            return notCurrent;\n        // Hook returned a promise\n        if (isPromise(result)) {\n            // Wait for the promise, then reprocess with the resulting value\n            return result.then(function (val) { return _this.handleHookResult(val); });\n        }\n        trace.traceHookResult(result, this.transition, this.options);\n        // Hook returned false\n        if (result === false) {\n            // Abort this Transition\n            return Rejection.aborted('Hook aborted transition').toPromise();\n        }\n        var isTargetState = is(TargetState);\n        // hook returned a TargetState\n        if (isTargetState(result)) {\n            // Halt the current Transition and redirect (a new Transition) to the TargetState.\n            return Rejection.redirected(result).toPromise();\n        }\n    };\n    /**\n     * Return a Rejection promise if the transition is no longer current due\n     * to a stopped router (disposed), or a new transition has started and superseded this one.\n     */\n    TransitionHook.prototype.getNotCurrentRejection = function () {\n        var router = this.transition.router;\n        // The router is stopped\n        if (router._disposed) {\n            return Rejection.aborted(\"UIRouter instance #\" + router.$id + \" has been stopped (disposed)\").toPromise();\n        }\n        if (this.transition._aborted) {\n            return Rejection.aborted().toPromise();\n        }\n        // This transition is no longer current.\n        // Another transition started while this hook was still running.\n        if (this.isSuperseded()) {\n            // Abort this transition\n            return Rejection.superseded(this.options.current()).toPromise();\n        }\n    };\n    TransitionHook.prototype.toString = function () {\n        var _a = this, options = _a.options, registeredHook = _a.registeredHook;\n        var event = parse('traceData.hookType')(options) || 'internal', context = parse('traceData.context.state.name')(options) || parse('traceData.context')(options) || 'unknown', name = fnToString(registeredHook.callback);\n        return event + \" context: \" + context + \", \" + maxLength(200, name);\n    };\n    /**\n     * These GetResultHandler(s) are used by [[invokeHook]] below\n     * Each HookType chooses a GetResultHandler (See: [[TransitionService._defineCoreEvents]])\n     */\n    TransitionHook.HANDLE_RESULT = function (hook) { return function (result) {\n        return hook.handleHookResult(result);\n    }; };\n    /**\n     * If the result is a promise rejection, log it.\n     * Otherwise, ignore the result.\n     */\n    TransitionHook.LOG_REJECTED_RESULT = function (hook) { return function (result) {\n        isPromise(result) && result.catch(function (err) { return hook.logError(Rejection.normalize(err)); });\n        return undefined;\n    }; };\n    /**\n     * These GetErrorHandler(s) are used by [[invokeHook]] below\n     * Each HookType chooses a GetErrorHandler (See: [[TransitionService._defineCoreEvents]])\n     */\n    TransitionHook.LOG_ERROR = function (hook) { return function (error) { return hook.logError(error); }; };\n    TransitionHook.REJECT_ERROR = function (hook) { return function (error) { return silentRejection(error); }; };\n    TransitionHook.THROW_ERROR = function (hook) { return function (error) {\n        throw error;\n    }; };\n    return TransitionHook;\n}());\nexport { TransitionHook };\n","import { Transition } from '../transition/transition';\nimport { UIRouter } from '../router';\nimport { Resolvable } from '../resolve';\nimport { inArray, uniqR, unnestR, values } from '../common';\nfunction addCoreResolvables(trans) {\n    trans.addResolvable(Resolvable.fromData(UIRouter, trans.router), '');\n    trans.addResolvable(Resolvable.fromData(Transition, trans), '');\n    trans.addResolvable(Resolvable.fromData('$transition$', trans), '');\n    trans.addResolvable(Resolvable.fromData('$stateParams', trans.params()), '');\n    trans.entering().forEach(function (state) {\n        trans.addResolvable(Resolvable.fromData('$state$', state), state);\n    });\n}\nexport var registerAddCoreResolvables = function (transitionService) {\n    return transitionService.onCreate({}, addCoreResolvables);\n};\nvar TRANSITION_TOKENS = ['$transition$', Transition];\nvar isTransition = inArray(TRANSITION_TOKENS);\n// References to Transition in the treeChanges pathnodes makes all\n// previous Transitions reachable in memory, causing a memory leak\n// This function removes resolves for '$transition$' and `Transition` from the treeChanges.\n// Do not use this on current transitions, only on old ones.\nexport var treeChangesCleanup = function (trans) {\n    var nodes = values(trans.treeChanges()).reduce(unnestR, []).reduce(uniqR, []);\n    // If the resolvable is a Transition, return a new resolvable with null data\n    var replaceTransitionWithNull = function (r) {\n        return isTransition(r.token) ? Resolvable.fromData(r.token, null) : r;\n    };\n    nodes.forEach(function (node) {\n        node.resolvables = node.resolvables.map(replaceTransitionWithNull);\n    });\n};\n","import { isString, isFunction } from '../common/predicates';\nimport { services } from '../common/coreservices';\nimport { TargetState } from '../state/targetState';\n/**\n * A [[TransitionHookFn]] that redirects to a different state or params\n *\n * Registered using `transitionService.onStart({ to: (state) => !!state.redirectTo }, redirectHook);`\n *\n * See [[StateDeclaration.redirectTo]]\n */\nvar redirectToHook = function (trans) {\n    var redirect = trans.to().redirectTo;\n    if (!redirect)\n        return;\n    var $state = trans.router.stateService;\n    function handleResult(result) {\n        if (!result)\n            return;\n        if (result instanceof TargetState)\n            return result;\n        if (isString(result))\n            return $state.target(result, trans.params(), trans.options());\n        if (result['state'] || result['params'])\n            return $state.target(result['state'] || trans.to(), result['params'] || trans.params(), trans.options());\n    }\n    if (isFunction(redirect)) {\n        return services.$q.when(redirect(trans)).then(handleResult);\n    }\n    return handleResult(redirect);\n};\nexport var registerRedirectToHook = function (transitionService) {\n    return transitionService.onStart({ to: function (state) { return !!state.redirectTo; } }, redirectToHook);\n};\n","/**\n * A factory which creates an onEnter, onExit or onRetain transition hook function\n *\n * The returned function invokes the (for instance) state.onEnter hook when the\n * state is being entered.\n */\nfunction makeEnterExitRetainHook(hookName) {\n    return function (transition, state) {\n        var _state = state.$$state();\n        var hookFn = _state[hookName];\n        return hookFn(transition, state);\n    };\n}\n/**\n * The [[TransitionStateHookFn]] for onExit\n *\n * When the state is being exited, the state's .onExit function is invoked.\n *\n * Registered using `transitionService.onExit({ exiting: (state) => !!state.onExit }, onExitHook);`\n *\n * See: [[IHookRegistry.onExit]]\n */\nvar onExitHook = makeEnterExitRetainHook('onExit');\nexport var registerOnExitHook = function (transitionService) {\n    return transitionService.onExit({ exiting: function (state) { return !!state.onExit; } }, onExitHook);\n};\n/**\n * The [[TransitionStateHookFn]] for onRetain\n *\n * When the state was already entered, and is not being exited or re-entered, the state's .onRetain function is invoked.\n *\n * Registered using `transitionService.onRetain({ retained: (state) => !!state.onRetain }, onRetainHook);`\n *\n * See: [[IHookRegistry.onRetain]]\n */\nvar onRetainHook = makeEnterExitRetainHook('onRetain');\nexport var registerOnRetainHook = function (transitionService) {\n    return transitionService.onRetain({ retained: function (state) { return !!state.onRetain; } }, onRetainHook);\n};\n/**\n * The [[TransitionStateHookFn]] for onEnter\n *\n * When the state is being entered, the state's .onEnter function is invoked.\n *\n * Registered using `transitionService.onEnter({ entering: (state) => !!state.onEnter }, onEnterHook);`\n *\n * See: [[IHookRegistry.onEnter]]\n */\nvar onEnterHook = makeEnterExitRetainHook('onEnter');\nexport var registerOnEnterHook = function (transitionService) {\n    return transitionService.onEnter({ entering: function (state) { return !!state.onEnter; } }, onEnterHook);\n};\n","import { noop } from '../common/common';\nimport { ResolveContext } from '../resolve/resolveContext';\nimport { val } from '../common/hof';\nexport var RESOLVE_HOOK_PRIORITY = 1000;\n/**\n * A [[TransitionHookFn]] which resolves all EAGER Resolvables in the To Path\n *\n * Registered using `transitionService.onStart({}, eagerResolvePath, { priority: 1000 });`\n *\n * When a Transition starts, this hook resolves all the EAGER Resolvables, which the transition then waits for.\n *\n * See [[StateDeclaration.resolve]]\n */\nvar eagerResolvePath = function (trans) {\n    return new ResolveContext(trans.treeChanges().to).resolvePath('EAGER', trans).then(noop);\n};\nexport var registerEagerResolvePath = function (transitionService) {\n    return transitionService.onStart({}, eagerResolvePath, { priority: RESOLVE_HOOK_PRIORITY });\n};\n/**\n * A [[TransitionHookFn]] which resolves all LAZY Resolvables for the state (and all its ancestors) in the To Path\n *\n * Registered using `transitionService.onEnter({ entering: () => true }, lazyResolveState, { priority: 1000 });`\n *\n * When a State is being entered, this hook resolves all the Resolvables for this state, which the transition then waits for.\n *\n * See [[StateDeclaration.resolve]]\n */\nvar lazyResolveState = function (trans, state) {\n    return new ResolveContext(trans.treeChanges().to).subContext(state.$$state()).resolvePath('LAZY', trans).then(noop);\n};\nexport var registerLazyResolveState = function (transitionService) {\n    return transitionService.onEnter({ entering: val(true) }, lazyResolveState, { priority: RESOLVE_HOOK_PRIORITY });\n};\n/**\n * A [[TransitionHookFn]] which resolves any dynamically added (LAZY or EAGER) Resolvables.\n *\n * Registered using `transitionService.onFinish({}, eagerResolvePath, { priority: 1000 });`\n *\n * After all entering states have been entered, this hook resolves any remaining Resolvables.\n * These are typically dynamic resolves which were added by some Transition Hook using [[Transition.addResolvable]].\n *\n * See [[StateDeclaration.resolve]]\n */\nvar resolveRemaining = function (trans) {\n    return new ResolveContext(trans.treeChanges().to).resolvePath('LAZY', trans).then(noop);\n};\nexport var registerResolveRemaining = function (transitionService) {\n    return transitionService.onFinish({}, resolveRemaining, { priority: RESOLVE_HOOK_PRIORITY });\n};\n","import { noop } from '../common/common';\nimport { services } from '../common/coreservices';\n/**\n * A [[TransitionHookFn]] which waits for the views to load\n *\n * Registered using `transitionService.onStart({}, loadEnteringViews);`\n *\n * Allows the views to do async work in [[ViewConfig.load]] before the transition continues.\n * In angular 1, this includes loading the templates.\n */\nvar loadEnteringViews = function (transition) {\n    var $q = services.$q;\n    var enteringViews = transition.views('entering');\n    if (!enteringViews.length)\n        return;\n    return $q.all(enteringViews.map(function (view) { return $q.when(view.load()); })).then(noop);\n};\nexport var registerLoadEnteringViews = function (transitionService) {\n    return transitionService.onFinish({}, loadEnteringViews);\n};\n/**\n * A [[TransitionHookFn]] which activates the new views when a transition is successful.\n *\n * Registered using `transitionService.onSuccess({}, activateViews);`\n *\n * After a transition is complete, this hook deactivates the old views from the previous state,\n * and activates the new views from the destination state.\n *\n * See [[ViewService]]\n */\nvar activateViews = function (transition) {\n    var enteringViews = transition.views('entering');\n    var exitingViews = transition.views('exiting');\n    if (!enteringViews.length && !exitingViews.length)\n        return;\n    var $view = transition.router.viewService;\n    exitingViews.forEach(function (vc) { return $view.deactivateViewConfig(vc); });\n    enteringViews.forEach(function (vc) { return $view.activateViewConfig(vc); });\n    $view.sync();\n};\nexport var registerActivateViews = function (transitionService) {\n    return transitionService.onSuccess({}, activateViews);\n};\n","import { copy } from '../common/common';\n/**\n * A [[TransitionHookFn]] which updates global UI-Router state\n *\n * Registered using `transitionService.onBefore({}, updateGlobalState);`\n *\n * Before a [[Transition]] starts, updates the global value of \"the current transition\" ([[Globals.transition]]).\n * After a successful [[Transition]], updates the global values of \"the current state\"\n * ([[Globals.current]] and [[Globals.$current]]) and \"the current param values\" ([[Globals.params]]).\n *\n * See also the deprecated properties:\n * [[StateService.transition]], [[StateService.current]], [[StateService.params]]\n */\nvar updateGlobalState = function (trans) {\n    var globals = trans.router.globals;\n    var transitionSuccessful = function () {\n        globals.successfulTransitions.enqueue(trans);\n        globals.$current = trans.$to();\n        globals.current = globals.$current.self;\n        copy(trans.params(), globals.params);\n    };\n    var clearCurrentTransition = function () {\n        // Do not clear globals.transition if a different transition has started in the meantime\n        if (globals.transition === trans)\n            globals.transition = null;\n    };\n    trans.onSuccess({}, transitionSuccessful, { priority: 10000 });\n    trans.promise.then(clearCurrentTransition, clearCurrentTransition);\n};\nexport var registerUpdateGlobalState = function (transitionService) {\n    return transitionService.onCreate({}, updateGlobalState);\n};\n","/**\n * A [[TransitionHookFn]] which updates the URL after a successful transition\n *\n * Registered using `transitionService.onSuccess({}, updateUrl);`\n */\nvar updateUrl = function (transition) {\n    var options = transition.options();\n    var $state = transition.router.stateService;\n    var $urlRouter = transition.router.urlRouter;\n    // Dont update the url in these situations:\n    // The transition was triggered by a URL sync (options.source === 'url')\n    // The user doesn't want the url to update (options.location === false)\n    // The destination state, and all parents have no navigable url\n    if (options.source !== 'url' && options.location && $state.$current.navigable) {\n        var urlOptions = { replace: options.location === 'replace' };\n        $urlRouter.push($state.$current.navigable.url, $state.params, urlOptions);\n    }\n    $urlRouter.update(true);\n};\nexport var registerUpdateUrl = function (transitionService) {\n    return transitionService.onSuccess({}, updateUrl, { priority: 9999 });\n};\n","import { trace } from '../common/trace';\nimport { Rejection } from '../transition/rejectFactory';\n/**\n * A [[TransitionHookFn]] that skips a transition if it should be ignored\n *\n * This hook is invoked at the end of the onBefore phase.\n *\n * If the transition should be ignored (because no parameter or states changed)\n * then the transition is ignored and not processed.\n */\nfunction ignoredHook(trans) {\n    var ignoredReason = trans._ignoredReason();\n    if (!ignoredReason)\n        return;\n    trace.traceTransitionIgnored(trans);\n    var pending = trans.router.globals.transition;\n    // The user clicked a link going back to the *current state* ('A')\n    // However, there is also a pending transition in flight (to 'B')\n    // Abort the transition to 'B' because the user now wants to be back at 'A'.\n    if (ignoredReason === 'SameAsCurrent' && pending) {\n        pending.abort();\n    }\n    return Rejection.ignored().toPromise();\n}\nexport var registerIgnoredTransitionHook = function (transitionService) {\n    return transitionService.onBefore({}, ignoredHook, { priority: -9999 });\n};\n","/**\n * A [[TransitionHookFn]] that rejects the Transition if it is invalid\n *\n * This hook is invoked at the end of the onBefore phase.\n * If the transition is invalid (for example, param values do not validate)\n * then the transition is rejected.\n */\nfunction invalidTransitionHook(trans) {\n    if (!trans.valid()) {\n        throw new Error(trans.error().toString());\n    }\n}\nexport var registerInvalidTransitionHook = function (transitionService) {\n    return transitionService.onBefore({}, invalidTransitionHook, { priority: -10000 });\n};\n","import { TransitionHookScope, TransitionHookPhase, } from './interface';\nimport { Transition } from './transition';\nimport { makeEvent } from './hookRegistry';\nimport { registerAddCoreResolvables, treeChangesCleanup } from '../hooks/coreResolvables';\nimport { registerRedirectToHook } from '../hooks/redirectTo';\nimport { registerOnExitHook, registerOnRetainHook, registerOnEnterHook } from '../hooks/onEnterExitRetain';\nimport { registerEagerResolvePath, registerLazyResolveState, registerResolveRemaining } from '../hooks/resolve';\nimport { registerLoadEnteringViews, registerActivateViews } from '../hooks/views';\nimport { registerUpdateGlobalState } from '../hooks/updateGlobals';\nimport { registerUpdateUrl } from '../hooks/url';\nimport { registerLazyLoadHook } from '../hooks/lazyLoad';\nimport { TransitionEventType } from './transitionEventType';\nimport { TransitionHook } from './transitionHook';\nimport { isDefined } from '../common/predicates';\nimport { removeFrom, values, createProxyFunctions } from '../common/common';\nimport { val } from '../common/hof';\nimport { registerIgnoredTransitionHook } from '../hooks/ignoredTransition';\nimport { registerInvalidTransitionHook } from '../hooks/invalidTransition';\n/**\n * The default [[Transition]] options.\n *\n * Include this object when applying custom defaults:\n * let reloadOpts = { reload: true, notify: true }\n * let options = defaults(theirOpts, customDefaults, defaultOptions);\n */\nexport var defaultTransOpts = {\n    location: true,\n    relative: null,\n    inherit: false,\n    notify: true,\n    reload: false,\n    supercede: true,\n    custom: {},\n    current: function () { return null; },\n    source: 'unknown',\n};\n/**\n * This class provides services related to Transitions.\n *\n * - Most importantly, it allows global Transition Hooks to be registered.\n * - It allows the default transition error handler to be set.\n * - It also has a factory function for creating new [[Transition]] objects, (used internally by the [[StateService]]).\n *\n * At bootstrap, [[UIRouter]] creates a single instance (singleton) of this class.\n *\n * This API is located at `router.transitionService` ([[UIRouter.transitionService]])\n */\nvar TransitionService = /** @class */ (function () {\n    /** @internal */\n    function TransitionService(_router) {\n        /** @internal */\n        this._transitionCount = 0;\n        /** The transition hook types, such as `onEnter`, `onStart`, etc */\n        this._eventTypes = [];\n        /** @internal The registered transition hooks */\n        this._registeredHooks = {};\n        /** The  paths on a criteria object */\n        this._criteriaPaths = {};\n        this._router = _router;\n        this.$view = _router.viewService;\n        this._deregisterHookFns = {};\n        this._pluginapi = (createProxyFunctions(val(this), {}, val(this), [\n            '_definePathType',\n            '_defineEvent',\n            '_getPathTypes',\n            '_getEvents',\n            'getHooks',\n        ]));\n        this._defineCorePaths();\n        this._defineCoreEvents();\n        this._registerCoreTransitionHooks();\n        _router.globals.successfulTransitions.onEvict(treeChangesCleanup);\n    }\n    /**\n     * Registers a [[TransitionHookFn]], called *while a transition is being constructed*.\n     *\n     * Registers a transition lifecycle hook, which is invoked during transition construction.\n     *\n     * This low level hook should only be used by plugins.\n     * This can be a useful time for plugins to add resolves or mutate the transition as needed.\n     * The Sticky States plugin uses this hook to modify the treechanges.\n     *\n     * ### Lifecycle\n     *\n     * `onCreate` hooks are invoked *while a transition is being constructed*.\n     *\n     * ### Return value\n     *\n     * The hook's return value is ignored\n     *\n     * @internal\n     * @param criteria defines which Transitions the Hook should be invoked for.\n     * @param callback the hook function which will be invoked.\n     * @param options the registration options\n     * @returns a function which deregisters the hook.\n     */\n    TransitionService.prototype.onCreate = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onBefore = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onStart = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onExit = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onRetain = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onEnter = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onFinish = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onSuccess = function (criteria, callback, options) {\n        return;\n    };\n    /** @inheritdoc */\n    TransitionService.prototype.onError = function (criteria, callback, options) {\n        return;\n    };\n    /**\n     * dispose\n     * @internal\n     */\n    TransitionService.prototype.dispose = function (router) {\n        values(this._registeredHooks).forEach(function (hooksArray) {\n            return hooksArray.forEach(function (hook) {\n                hook._deregistered = true;\n                removeFrom(hooksArray, hook);\n            });\n        });\n    };\n    /**\n     * Creates a new [[Transition]] object\n     *\n     * This is a factory function for creating new Transition objects.\n     * It is used internally by the [[StateService]] and should generally not be called by application code.\n     *\n     * @internal\n     * @param fromPath the path to the current state (the from state)\n     * @param targetState the target state (destination)\n     * @returns a Transition\n     */\n    TransitionService.prototype.create = function (fromPath, targetState) {\n        return new Transition(fromPath, targetState, this._router);\n    };\n    /** @internal */\n    TransitionService.prototype._defineCoreEvents = function () {\n        var Phase = TransitionHookPhase;\n        var TH = TransitionHook;\n        var paths = this._criteriaPaths;\n        var NORMAL_SORT = false, REVERSE_SORT = true;\n        var SYNCHRONOUS = true;\n        this._defineEvent('onCreate', Phase.CREATE, 0, paths.to, NORMAL_SORT, TH.LOG_REJECTED_RESULT, TH.THROW_ERROR, SYNCHRONOUS);\n        this._defineEvent('onBefore', Phase.BEFORE, 0, paths.to);\n        this._defineEvent('onStart', Phase.RUN, 0, paths.to);\n        this._defineEvent('onExit', Phase.RUN, 100, paths.exiting, REVERSE_SORT);\n        this._defineEvent('onRetain', Phase.RUN, 200, paths.retained);\n        this._defineEvent('onEnter', Phase.RUN, 300, paths.entering);\n        this._defineEvent('onFinish', Phase.RUN, 400, paths.to);\n        this._defineEvent('onSuccess', Phase.SUCCESS, 0, paths.to, NORMAL_SORT, TH.LOG_REJECTED_RESULT, TH.LOG_ERROR, SYNCHRONOUS);\n        this._defineEvent('onError', Phase.ERROR, 0, paths.to, NORMAL_SORT, TH.LOG_REJECTED_RESULT, TH.LOG_ERROR, SYNCHRONOUS);\n    };\n    /** @internal */\n    TransitionService.prototype._defineCorePaths = function () {\n        var STATE = TransitionHookScope.STATE, TRANSITION = TransitionHookScope.TRANSITION;\n        this._definePathType('to', TRANSITION);\n        this._definePathType('from', TRANSITION);\n        this._definePathType('exiting', STATE);\n        this._definePathType('retained', STATE);\n        this._definePathType('entering', STATE);\n    };\n    /** @internal */\n    TransitionService.prototype._defineEvent = function (name, hookPhase, hookOrder, criteriaMatchPath, reverseSort, getResultHandler, getErrorHandler, synchronous) {\n        if (reverseSort === void 0) { reverseSort = false; }\n        if (getResultHandler === void 0) { getResultHandler = TransitionHook.HANDLE_RESULT; }\n        if (getErrorHandler === void 0) { getErrorHandler = TransitionHook.REJECT_ERROR; }\n        if (synchronous === void 0) { synchronous = false; }\n        var eventType = new TransitionEventType(name, hookPhase, hookOrder, criteriaMatchPath, reverseSort, getResultHandler, getErrorHandler, synchronous);\n        this._eventTypes.push(eventType);\n        makeEvent(this, this, eventType);\n    };\n    /** @internal */\n    TransitionService.prototype._getEvents = function (phase) {\n        var transitionHookTypes = isDefined(phase)\n            ? this._eventTypes.filter(function (type) { return type.hookPhase === phase; })\n            : this._eventTypes.slice();\n        return transitionHookTypes.sort(function (l, r) {\n            var cmpByPhase = l.hookPhase - r.hookPhase;\n            return cmpByPhase === 0 ? l.hookOrder - r.hookOrder : cmpByPhase;\n        });\n    };\n    /**\n     * Adds a Path to be used as a criterion against a TreeChanges path\n     *\n     * For example: the `exiting` path in [[HookMatchCriteria]] is a STATE scoped path.\n     * It was defined by calling `defineTreeChangesCriterion('exiting', TransitionHookScope.STATE)`\n     * Each state in the exiting path is checked against the criteria and returned as part of the match.\n     *\n     * Another example: the `to` path in [[HookMatchCriteria]] is a TRANSITION scoped path.\n     * It was defined by calling `defineTreeChangesCriterion('to', TransitionHookScope.TRANSITION)`\n     * Only the tail of the `to` path is checked against the criteria and returned as part of the match.\n     *\n     * @internal\n     */\n    TransitionService.prototype._definePathType = function (name, hookScope) {\n        this._criteriaPaths[name] = { name: name, scope: hookScope };\n    };\n    /** @internal */\n    // tslint:disable-next-line\n    TransitionService.prototype._getPathTypes = function () {\n        return this._criteriaPaths;\n    };\n    /** @internal */\n    TransitionService.prototype.getHooks = function (hookName) {\n        return this._registeredHooks[hookName];\n    };\n    /** @internal */\n    TransitionService.prototype._registerCoreTransitionHooks = function () {\n        var fns = this._deregisterHookFns;\n        fns.addCoreResolves = registerAddCoreResolvables(this);\n        fns.ignored = registerIgnoredTransitionHook(this);\n        fns.invalid = registerInvalidTransitionHook(this);\n        // Wire up redirectTo hook\n        fns.redirectTo = registerRedirectToHook(this);\n        // Wire up onExit/Retain/Enter state hooks\n        fns.onExit = registerOnExitHook(this);\n        fns.onRetain = registerOnRetainHook(this);\n        fns.onEnter = registerOnEnterHook(this);\n        // Wire up Resolve hooks\n        fns.eagerResolve = registerEagerResolvePath(this);\n        fns.lazyResolve = registerLazyResolveState(this);\n        fns.resolveAll = registerResolveRemaining(this);\n        // Wire up the View management hooks\n        fns.loadViews = registerLoadEnteringViews(this);\n        fns.activateViews = registerActivateViews(this);\n        // Updates global state after a transition\n        fns.updateGlobals = registerUpdateGlobalState(this);\n        // After globals.current is updated at priority: 10000\n        fns.updateUrl = registerUpdateUrl(this);\n        // Lazy load state trees\n        fns.lazyLoad = registerLazyLoadHook(this);\n    };\n    return TransitionService;\n}());\nexport { TransitionService };\n","import { ParamTypes } from '../params';\nimport { isDefined, isString } from '../common';\n/**\n * An API to customize the URL behavior and retrieve URL configuration\n *\n * This API is used to customize the behavior of the URL.\n * This includes optional trailing slashes ([[strictMode]]), case sensitivity ([[caseInsensitive]]),\n * and custom parameter encoding (custom [[type]]).\n *\n * It also has information about the location (url) configuration such as [[port]] and [[baseHref]].\n * This information can be used to build absolute URLs, such as\n * `https://example.com:443/basepath/state/substate?param1=a#hashvalue`;\n *\n * This API is found at `router.urlService.config` (see: [[UIRouter.urlService]], [[URLService.config]])\n */\nvar UrlConfig = /** @class */ (function () {\n    /** @internal */ function UrlConfig(/** @internal */ router) {\n        var _this = this;\n        this.router = router;\n        /** @internal */ this.paramTypes = new ParamTypes();\n        /** @internal */ this._decodeParams = true;\n        /** @internal */ this._isCaseInsensitive = false;\n        /** @internal */ this._isStrictMode = true;\n        /** @internal */ this._defaultSquashPolicy = false;\n        /** @internal */ this.dispose = function () { return _this.paramTypes.dispose(); };\n        // Delegate these calls to the current LocationConfig implementation\n        /**\n         * Gets the base Href, e.g., `http://localhost/approot/`\n         *\n         * @return the application's base href\n         */\n        this.baseHref = function () { return _this.router.locationConfig.baseHref(); };\n        /**\n         * Gets or sets the hashPrefix\n         *\n         * This only applies when not running in [[html5Mode]] (pushstate mode)\n         *\n         * If the current url is `http://localhost/app#!/uirouter/path/#anchor`, it returns `!` which is the prefix for the \"hashbang\" portion.\n         *\n         * @return the hash prefix\n         */\n        this.hashPrefix = function (newprefix) { return _this.router.locationConfig.hashPrefix(newprefix); };\n        /**\n         * Gets the host, e.g., `localhost`\n         *\n         * @return the protocol\n         */\n        this.host = function () { return _this.router.locationConfig.host(); };\n        /**\n         * Returns true when running in pushstate mode\n         *\n         * @return true when running in html5 mode (pushstate mode).\n         */\n        this.html5Mode = function () { return _this.router.locationConfig.html5Mode(); };\n        /**\n         * Gets the port, e.g., `80`\n         *\n         * @return the port number\n         */\n        this.port = function () { return _this.router.locationConfig.port(); };\n        /**\n         * Gets the protocol, e.g., `http`\n         *\n         * @return the protocol\n         */\n        this.protocol = function () { return _this.router.locationConfig.protocol(); };\n    }\n    /**\n     * Defines whether URL matching should be case sensitive (the default behavior), or not.\n     *\n     * #### Example:\n     * ```js\n     * // Allow case insensitive url matches\n     * urlService.config.caseInsensitive(true);\n     * ```\n     *\n     * @param value `false` to match URL in a case sensitive manner; otherwise `true`;\n     * @returns the current value of caseInsensitive\n     */\n    UrlConfig.prototype.caseInsensitive = function (value) {\n        return (this._isCaseInsensitive = isDefined(value) ? value : this._isCaseInsensitive);\n    };\n    /**\n     * Sets the default behavior when generating or matching URLs with default parameter values.\n     *\n     * #### Example:\n     * ```js\n     * // Remove default parameter values from the url\n     * urlService.config.defaultSquashPolicy(true);\n     * ```\n     *\n     * @param value A string that defines the default parameter URL squashing behavior.\n     *    - `nosquash`: When generating an href with a default parameter value, do not squash the parameter value from the URL\n     *    - `slash`: When generating an href with a default parameter value, squash (remove) the parameter value, and, if the\n     *      parameter is surrounded by slashes, squash (remove) one slash from the URL\n     *    - any other string, e.g. \"~\": When generating an href with a default parameter value, squash (remove)\n     *      the parameter value from the URL and replace it with this string.\n     * @returns the current value of defaultSquashPolicy\n     */\n    UrlConfig.prototype.defaultSquashPolicy = function (value) {\n        if (isDefined(value) && value !== true && value !== false && !isString(value))\n            throw new Error(\"Invalid squash policy: \" + value + \". Valid policies: false, true, arbitrary-string\");\n        return (this._defaultSquashPolicy = isDefined(value) ? value : this._defaultSquashPolicy);\n    };\n    /**\n     * Defines whether URLs should match trailing slashes, or not (the default behavior).\n     *\n     * #### Example:\n     * ```js\n     * // Allow optional trailing slashes\n     * urlService.config.strictMode(false);\n     * ```\n     *\n     * @param value `false` to match trailing slashes in URLs, otherwise `true`.\n     * @returns the current value of strictMode\n     */\n    UrlConfig.prototype.strictMode = function (value) {\n        return (this._isStrictMode = isDefined(value) ? value : this._isStrictMode);\n    };\n    /**\n     * Creates and registers a custom [[ParamType]] object\n     *\n     * A custom parameter type can be used to generate URLs with typed parameters or custom encoding/decoding.\n     *\n     * #### Note: Register custom types *before using them* in a state definition.\n     *\n     * #### Example:\n     * ```js\n     * // Encode object parameter as JSON string\n     * urlService.config.type('myjson', {\n     *   encode: (obj) => JSON.stringify(obj),\n     *   decode: (str) => JSON.parse(str),\n     *   is: (val) => typeof(val) === 'object',\n     *   pattern: /[^/]+/,\n     *   equals: (a, b) => _.isEqual(a, b),\n     * });\n     * ```\n     *\n     * See [[ParamTypeDefinition]] for more examples\n     *\n     * @param name The type name.\n     * @param definition The type definition. See [[ParamTypeDefinition]] for information on the values accepted.\n     * @param definitionFn A function that is injected before the app runtime starts.\n     *        The result of this function should be a [[ParamTypeDefinition]].\n     *        The result is merged into the existing `definition`.\n     *        See [[ParamType]] for information on the values accepted.\n     *\n     * @returns if only the `name` parameter was specified: the currently registered [[ParamType]] object, or undefined\n     */\n    UrlConfig.prototype.type = function (name, definition, definitionFn) {\n        var type = this.paramTypes.type(name, definition, definitionFn);\n        return !isDefined(definition) ? type : this;\n    };\n    return UrlConfig;\n}());\nexport { UrlConfig };\n","import { map, inherit, identity, unnest, tail, find, allTrueR, unnestR, arrayTuples } from '../common/common';\nimport { prop, propEq } from '../common/hof';\nimport { isArray, isString, isDefined } from '../common/predicates';\nimport { Param, DefType } from '../params/param';\nimport { joinNeighborsR, splitOnDelim } from '../common/strings';\nimport { defaults } from '../common';\nfunction quoteRegExp(str, param) {\n    var surroundPattern = ['', ''], result = str.replace(/[\\\\\\[\\]\\^$*+?.()|{}]/g, '\\\\$&');\n    if (!param)\n        return result;\n    switch (param.squash) {\n        case false:\n            surroundPattern = ['(', ')' + (param.isOptional ? '?' : '')];\n            break;\n        case true:\n            result = result.replace(/\\/$/, '');\n            surroundPattern = ['(?:/(', ')|/)?'];\n            break;\n        default:\n            surroundPattern = [\"(\" + param.squash + \"|\", ')?'];\n            break;\n    }\n    return result + surroundPattern[0] + param.type.pattern.source + surroundPattern[1];\n}\nvar memoizeTo = function (obj, _prop, fn) { return (obj[_prop] = obj[_prop] || fn()); };\nvar splitOnSlash = splitOnDelim('/');\nvar defaultConfig = {\n    state: { params: {} },\n    strict: true,\n    caseInsensitive: true,\n    decodeParams: true,\n};\n/**\n * Matches URLs against patterns.\n *\n * Matches URLs against patterns and extracts named parameters from the path or the search\n * part of the URL.\n *\n * A URL pattern consists of a path pattern, optionally followed by '?' and a list of search (query)\n * parameters. Multiple search parameter names are separated by '&'. Search parameters\n * do not influence whether or not a URL is matched, but their values are passed through into\n * the matched parameters returned by [[UrlMatcher.exec]].\n *\n * - *Path parameters* are defined using curly brace placeholders (`/somepath/{param}`)\n * or colon placeholders (`/somePath/:param`).\n *\n * - *A parameter RegExp* may be defined for a param after a colon\n * (`/somePath/{param:[a-zA-Z0-9]+}`) in a curly brace placeholder.\n * The regexp must match for the url to be matched.\n * Should the regexp itself contain curly braces, they must be in matched pairs or escaped with a backslash.\n *\n * Note: a RegExp parameter will encode its value using either [[ParamTypes.path]] or [[ParamTypes.query]].\n *\n * - *Custom parameter types* may also be specified after a colon (`/somePath/{param:int}`) in curly brace parameters.\n *   See [[UrlMatcherFactory.type]] for more information.\n *\n * - *Catch-all parameters* are defined using an asterisk placeholder (`/somepath/*catchallparam`).\n *   A catch-all * parameter value will contain the remainder of the URL.\n *\n * ---\n *\n * Parameter names may contain only word characters (latin letters, digits, and underscore) and\n * must be unique within the pattern (across both path and search parameters).\n * A path parameter matches any number of characters other than '/'. For catch-all\n * placeholders the path parameter matches any number of characters.\n *\n * Examples:\n *\n * * `'/hello/'` - Matches only if the path is exactly '/hello/'. There is no special treatment for\n *   trailing slashes, and patterns have to match the entire path, not just a prefix.\n * * `'/user/:id'` - Matches '/user/bob' or '/user/1234!!!' or even '/user/' but not '/user' or\n *   '/user/bob/details'. The second path segment will be captured as the parameter 'id'.\n * * `'/user/{id}'` - Same as the previous example, but using curly brace syntax.\n * * `'/user/{id:[^/]*}'` - Same as the previous example.\n * * `'/user/{id:[0-9a-fA-F]{1,8}}'` - Similar to the previous example, but only matches if the id\n *   parameter consists of 1 to 8 hex digits.\n * * `'/files/{path:.*}'` - Matches any URL starting with '/files/' and captures the rest of the\n *   path into the parameter 'path'.\n * * `'/files/*path'` - ditto.\n * * `'/calendar/{start:date}'` - Matches \"/calendar/2014-11-12\" (because the pattern defined\n *   in the built-in  `date` ParamType matches `2014-11-12`) and provides a Date object in $stateParams.start\n *\n */\nvar UrlMatcher = /** @class */ (function () {\n    /**\n     * @param pattern The pattern to compile into a matcher.\n     * @param paramTypes The [[ParamTypes]] registry\n     * @param paramFactory A [[ParamFactory]] object\n     * @param config  A [[UrlMatcherCompileConfig]] configuration object\n     */\n    function UrlMatcher(pattern, paramTypes, paramFactory, config) {\n        var _this = this;\n        /** @internal */\n        this._cache = { path: [this] };\n        /** @internal */\n        this._children = [];\n        /** @internal */\n        this._params = [];\n        /** @internal */\n        this._segments = [];\n        /** @internal */\n        this._compiled = [];\n        this.config = config = defaults(config, defaultConfig);\n        this.pattern = pattern;\n        // Find all placeholders and create a compiled pattern, using either classic or curly syntax:\n        //   '*' name\n        //   ':' name\n        //   '{' name '}'\n        //   '{' name ':' regexp '}'\n        // The regular expression is somewhat complicated due to the need to allow curly braces\n        // inside the regular expression. The placeholder regexp breaks down as follows:\n        //    ([:*])([\\w\\[\\]]+)              - classic placeholder ($1 / $2) (search version has - for snake-case)\n        //    \\{([\\w\\[\\]]+)(?:\\:\\s*( ... ))?\\}  - curly brace placeholder ($3) with optional regexp/type ... ($4) (search version has - for snake-case\n        //    (?: ... | ... | ... )+         - the regexp consists of any number of atoms, an atom being either\n        //    [^{}\\\\]+                       - anything other than curly braces or backslash\n        //    \\\\.                            - a backslash escape\n        //    \\{(?:[^{}\\\\]+|\\\\.)*\\}          - a matched set of curly braces containing other atoms\n        var placeholder = /([:*])([\\w\\[\\]]+)|\\{([\\w\\[\\]]+)(?:\\:\\s*((?:[^{}\\\\]+|\\\\.|\\{(?:[^{}\\\\]+|\\\\.)*\\})+))?\\}/g;\n        var searchPlaceholder = /([:]?)([\\w\\[\\].-]+)|\\{([\\w\\[\\].-]+)(?:\\:\\s*((?:[^{}\\\\]+|\\\\.|\\{(?:[^{}\\\\]+|\\\\.)*\\})+))?\\}/g;\n        var patterns = [];\n        var last = 0;\n        var matchArray;\n        var checkParamErrors = function (id) {\n            if (!UrlMatcher.nameValidator.test(id))\n                throw new Error(\"Invalid parameter name '\" + id + \"' in pattern '\" + pattern + \"'\");\n            if (find(_this._params, propEq('id', id)))\n                throw new Error(\"Duplicate parameter name '\" + id + \"' in pattern '\" + pattern + \"'\");\n        };\n        // Split into static segments separated by path parameter placeholders.\n        // The number of segments is always 1 more than the number of parameters.\n        var matchDetails = function (m, isSearch) {\n            // IE[78] returns '' for unmatched groups instead of null\n            var id = m[2] || m[3];\n            var regexp = isSearch ? m[4] : m[4] || (m[1] === '*' ? '[\\\\s\\\\S]*' : null);\n            var makeRegexpType = function (str) {\n                return inherit(paramTypes.type(isSearch ? 'query' : 'path'), {\n                    pattern: new RegExp(str, _this.config.caseInsensitive ? 'i' : undefined),\n                });\n            };\n            return {\n                id: id,\n                regexp: regexp,\n                segment: pattern.substring(last, m.index),\n                type: !regexp ? null : paramTypes.type(regexp) || makeRegexpType(regexp),\n            };\n        };\n        var details;\n        var segment;\n        // tslint:disable-next-line:no-conditional-assignment\n        while ((matchArray = placeholder.exec(pattern))) {\n            details = matchDetails(matchArray, false);\n            if (details.segment.indexOf('?') >= 0)\n                break; // we're into the search part\n            checkParamErrors(details.id);\n            this._params.push(paramFactory.fromPath(details.id, details.type, config.state));\n            this._segments.push(details.segment);\n            patterns.push([details.segment, tail(this._params)]);\n            last = placeholder.lastIndex;\n        }\n        segment = pattern.substring(last);\n        // Find any search parameter names and remove them from the last segment\n        var i = segment.indexOf('?');\n        if (i >= 0) {\n            var search = segment.substring(i);\n            segment = segment.substring(0, i);\n            if (search.length > 0) {\n                last = 0;\n                // tslint:disable-next-line:no-conditional-assignment\n                while ((matchArray = searchPlaceholder.exec(search))) {\n                    details = matchDetails(matchArray, true);\n                    checkParamErrors(details.id);\n                    this._params.push(paramFactory.fromSearch(details.id, details.type, config.state));\n                    last = placeholder.lastIndex;\n                    // check if ?&\n                }\n            }\n        }\n        this._segments.push(segment);\n        this._compiled = patterns.map(function (_pattern) { return quoteRegExp.apply(null, _pattern); }).concat(quoteRegExp(segment));\n    }\n    /** @internal */\n    UrlMatcher.encodeDashes = function (str) {\n        // Replace dashes with encoded \"\\-\"\n        return encodeURIComponent(str).replace(/-/g, function (c) { return \"%5C%\" + c.charCodeAt(0).toString(16).toUpperCase(); });\n    };\n    /** @internal Given a matcher, return an array with the matcher's path segments and path params, in order */\n    UrlMatcher.pathSegmentsAndParams = function (matcher) {\n        var staticSegments = matcher._segments;\n        var pathParams = matcher._params.filter(function (p) { return p.location === DefType.PATH; });\n        return arrayTuples(staticSegments, pathParams.concat(undefined))\n            .reduce(unnestR, [])\n            .filter(function (x) { return x !== '' && isDefined(x); });\n    };\n    /** @internal Given a matcher, return an array with the matcher's query params */\n    UrlMatcher.queryParams = function (matcher) {\n        return matcher._params.filter(function (p) { return p.location === DefType.SEARCH; });\n    };\n    /**\n     * Compare two UrlMatchers\n     *\n     * This comparison function converts a UrlMatcher into static and dynamic path segments.\n     * Each static path segment is a static string between a path separator (slash character).\n     * Each dynamic segment is a path parameter.\n     *\n     * The comparison function sorts static segments before dynamic ones.\n     */\n    UrlMatcher.compare = function (a, b) {\n        /**\n         * Turn a UrlMatcher and all its parent matchers into an array\n         * of slash literals '/', string literals, and Param objects\n         *\n         * This example matcher matches strings like \"/foo/:param/tail\":\n         * var matcher = $umf.compile(\"/foo\").append($umf.compile(\"/:param\")).append($umf.compile(\"/\")).append($umf.compile(\"tail\"));\n         * var result = segments(matcher); // [ '/', 'foo', '/', Param, '/', 'tail' ]\n         *\n         * Caches the result as `matcher._cache.segments`\n         */\n        var segments = function (matcher) {\n            return (matcher._cache.segments =\n                matcher._cache.segments ||\n                    matcher._cache.path\n                        .map(UrlMatcher.pathSegmentsAndParams)\n                        .reduce(unnestR, [])\n                        .reduce(joinNeighborsR, [])\n                        .map(function (x) { return (isString(x) ? splitOnSlash(x) : x); })\n                        .reduce(unnestR, []));\n        };\n        /**\n         * Gets the sort weight for each segment of a UrlMatcher\n         *\n         * Caches the result as `matcher._cache.weights`\n         */\n        var weights = function (matcher) {\n            return (matcher._cache.weights =\n                matcher._cache.weights ||\n                    segments(matcher).map(function (segment) {\n                        // Sort slashes first, then static strings, the Params\n                        if (segment === '/')\n                            return 1;\n                        if (isString(segment))\n                            return 2;\n                        if (segment instanceof Param)\n                            return 3;\n                    }));\n        };\n        /**\n         * Pads shorter array in-place (mutates)\n         */\n        var padArrays = function (l, r, padVal) {\n            var len = Math.max(l.length, r.length);\n            while (l.length < len)\n                l.push(padVal);\n            while (r.length < len)\n                r.push(padVal);\n        };\n        var weightsA = weights(a), weightsB = weights(b);\n        padArrays(weightsA, weightsB, 0);\n        var _pairs = arrayTuples(weightsA, weightsB);\n        var cmp, i;\n        for (i = 0; i < _pairs.length; i++) {\n            cmp = _pairs[i][0] - _pairs[i][1];\n            if (cmp !== 0)\n                return cmp;\n        }\n        return 0;\n    };\n    /**\n     * Creates a new concatenated UrlMatcher\n     *\n     * Builds a new UrlMatcher by appending another UrlMatcher to this one.\n     *\n     * @param url A `UrlMatcher` instance to append as a child of the current `UrlMatcher`.\n     */\n    UrlMatcher.prototype.append = function (url) {\n        this._children.push(url);\n        url._cache = {\n            path: this._cache.path.concat(url),\n            parent: this,\n            pattern: null,\n        };\n        return url;\n    };\n    /** @internal */\n    UrlMatcher.prototype.isRoot = function () {\n        return this._cache.path[0] === this;\n    };\n    /** Returns the input pattern string */\n    UrlMatcher.prototype.toString = function () {\n        return this.pattern;\n    };\n    UrlMatcher.prototype._getDecodedParamValue = function (value, param) {\n        if (isDefined(value)) {\n            if (this.config.decodeParams && !param.type.raw) {\n                if (isArray(value)) {\n                    value = value.map(function (paramValue) { return decodeURIComponent(paramValue); });\n                }\n                else {\n                    value = decodeURIComponent(value);\n                }\n            }\n            value = param.type.decode(value);\n        }\n        return param.value(value);\n    };\n    /**\n     * Tests the specified url/path against this matcher.\n     *\n     * Tests if the given url matches this matcher's pattern, and returns an object containing the captured\n     * parameter values.  Returns null if the path does not match.\n     *\n     * The returned object contains the values\n     * of any search parameters that are mentioned in the pattern, but their value may be null if\n     * they are not present in `search`. This means that search parameters are always treated\n     * as optional.\n     *\n     * #### Example:\n     * ```js\n     * new UrlMatcher('/user/{id}?q&r').exec('/user/bob', {\n     *   x: '1', q: 'hello'\n     * });\n     * // returns { id: 'bob', q: 'hello', r: null }\n     * ```\n     *\n     * @param path    The URL path to match, e.g. `$location.path()`.\n     * @param search  URL search parameters, e.g. `$location.search()`.\n     * @param hash    URL hash e.g. `$location.hash()`.\n     * @param options\n     *\n     * @returns The captured parameter values.\n     */\n    UrlMatcher.prototype.exec = function (path, search, hash, options) {\n        var _this = this;\n        if (search === void 0) { search = {}; }\n        if (options === void 0) { options = {}; }\n        var match = memoizeTo(this._cache, 'pattern', function () {\n            return new RegExp([\n                '^',\n                unnest(_this._cache.path.map(prop('_compiled'))).join(''),\n                _this.config.strict === false ? '/?' : '',\n                '$',\n            ].join(''), _this.config.caseInsensitive ? 'i' : undefined);\n        }).exec(path);\n        if (!match)\n            return null;\n        // options = defaults(options, { isolate: false });\n        var allParams = this.parameters(), pathParams = allParams.filter(function (param) { return !param.isSearch(); }), searchParams = allParams.filter(function (param) { return param.isSearch(); }), nPathSegments = this._cache.path.map(function (urlm) { return urlm._segments.length - 1; }).reduce(function (a, x) { return a + x; }), values = {};\n        if (nPathSegments !== match.length - 1)\n            throw new Error(\"Unbalanced capture group in route '\" + this.pattern + \"'\");\n        function decodePathArray(paramVal) {\n            var reverseString = function (str) { return str.split('').reverse().join(''); };\n            var unquoteDashes = function (str) { return str.replace(/\\\\-/g, '-'); };\n            var split = reverseString(paramVal).split(/-(?!\\\\)/);\n            var allReversed = map(split, reverseString);\n            return map(allReversed, unquoteDashes).reverse();\n        }\n        for (var i = 0; i < nPathSegments; i++) {\n            var param = pathParams[i];\n            var value = match[i + 1];\n            // if the param value matches a pre-replace pair, replace the value before decoding.\n            for (var j = 0; j < param.replace.length; j++) {\n                if (param.replace[j].from === value)\n                    value = param.replace[j].to;\n            }\n            if (value && param.array === true)\n                value = decodePathArray(value);\n            values[param.id] = this._getDecodedParamValue(value, param);\n        }\n        searchParams.forEach(function (param) {\n            var value = search[param.id];\n            for (var j = 0; j < param.replace.length; j++) {\n                if (param.replace[j].from === value)\n                    value = param.replace[j].to;\n            }\n            values[param.id] = _this._getDecodedParamValue(value, param);\n        });\n        if (hash)\n            values['#'] = hash;\n        return values;\n    };\n    /**\n     * @internal\n     * Returns all the [[Param]] objects of all path and search parameters of this pattern in order of appearance.\n     *\n     * @returns {Array.<Param>}  An array of [[Param]] objects. Must be treated as read-only. If the\n     *    pattern has no parameters, an empty array is returned.\n     */\n    UrlMatcher.prototype.parameters = function (opts) {\n        if (opts === void 0) { opts = {}; }\n        if (opts.inherit === false)\n            return this._params;\n        return unnest(this._cache.path.map(function (matcher) { return matcher._params; }));\n    };\n    /**\n     * @internal\n     * Returns a single parameter from this UrlMatcher by id\n     *\n     * @param id\n     * @param opts\n     * @returns {T|Param|any|boolean|UrlMatcher|null}\n     */\n    UrlMatcher.prototype.parameter = function (id, opts) {\n        var _this = this;\n        if (opts === void 0) { opts = {}; }\n        var findParam = function () {\n            for (var _i = 0, _a = _this._params; _i < _a.length; _i++) {\n                var param = _a[_i];\n                if (param.id === id)\n                    return param;\n            }\n        };\n        var parent = this._cache.parent;\n        return findParam() || (opts.inherit !== false && parent && parent.parameter(id, opts)) || null;\n    };\n    /**\n     * Validates the input parameter values against this UrlMatcher\n     *\n     * Checks an object hash of parameters to validate their correctness according to the parameter\n     * types of this `UrlMatcher`.\n     *\n     * @param params The object hash of parameters to validate.\n     * @returns Returns `true` if `params` validates, otherwise `false`.\n     */\n    UrlMatcher.prototype.validates = function (params) {\n        var validParamVal = function (param, val) { return !param || param.validates(val); };\n        params = params || {};\n        // I'm not sure why this checks only the param keys passed in, and not all the params known to the matcher\n        var paramSchema = this.parameters().filter(function (paramDef) { return params.hasOwnProperty(paramDef.id); });\n        return paramSchema.map(function (paramDef) { return validParamVal(paramDef, params[paramDef.id]); }).reduce(allTrueR, true);\n    };\n    /**\n     * Given a set of parameter values, creates a URL from this UrlMatcher.\n     *\n     * Creates a URL that matches this pattern by substituting the specified values\n     * for the path and search parameters.\n     *\n     * #### Example:\n     * ```js\n     * new UrlMatcher('/user/{id}?q').format({ id:'bob', q:'yes' });\n     * // returns '/user/bob?q=yes'\n     * ```\n     *\n     * @param values  the values to substitute for the parameters in this pattern.\n     * @returns the formatted URL (path and optionally search part).\n     */\n    UrlMatcher.prototype.format = function (values) {\n        if (values === void 0) { values = {}; }\n        // Build the full path of UrlMatchers (including all parent UrlMatchers)\n        var urlMatchers = this._cache.path;\n        // Extract all the static segments and Params (processed as ParamDetails)\n        // into an ordered array\n        var pathSegmentsAndParams = urlMatchers\n            .map(UrlMatcher.pathSegmentsAndParams)\n            .reduce(unnestR, [])\n            .map(function (x) { return (isString(x) ? x : getDetails(x)); });\n        // Extract the query params into a separate array\n        var queryParams = urlMatchers\n            .map(UrlMatcher.queryParams)\n            .reduce(unnestR, [])\n            .map(getDetails);\n        var isInvalid = function (param) { return param.isValid === false; };\n        if (pathSegmentsAndParams.concat(queryParams).filter(isInvalid).length) {\n            return null;\n        }\n        /**\n         * Given a Param, applies the parameter value, then returns detailed information about it\n         */\n        function getDetails(param) {\n            // Normalize to typed value\n            var value = param.value(values[param.id]);\n            var isValid = param.validates(value);\n            var isDefaultValue = param.isDefaultValue(value);\n            // Check if we're in squash mode for the parameter\n            var squash = isDefaultValue ? param.squash : false;\n            // Allow the Parameter's Type to encode the value\n            var encoded = param.type.encode(value);\n            return { param: param, value: value, isValid: isValid, isDefaultValue: isDefaultValue, squash: squash, encoded: encoded };\n        }\n        // Build up the path-portion from the list of static segments and parameters\n        var pathString = pathSegmentsAndParams.reduce(function (acc, x) {\n            // The element is a static segment (a raw string); just append it\n            if (isString(x))\n                return acc + x;\n            // Otherwise, it's a ParamDetails.\n            var squash = x.squash, encoded = x.encoded, param = x.param;\n            // If squash is === true, try to remove a slash from the path\n            if (squash === true)\n                return acc.match(/\\/$/) ? acc.slice(0, -1) : acc;\n            // If squash is a string, use the string for the param value\n            if (isString(squash))\n                return acc + squash;\n            if (squash !== false)\n                return acc; // ?\n            if (encoded == null)\n                return acc;\n            // If this parameter value is an array, encode the value using encodeDashes\n            if (isArray(encoded))\n                return acc + map(encoded, UrlMatcher.encodeDashes).join('-');\n            // If the parameter type is \"raw\", then do not encodeURIComponent\n            if (param.raw)\n                return acc + encoded;\n            // Encode the value\n            return acc + encodeURIComponent(encoded);\n        }, '');\n        // Build the query string by applying parameter values (array or regular)\n        // then mapping to key=value, then flattening and joining using \"&\"\n        var queryString = queryParams\n            .map(function (paramDetails) {\n            var param = paramDetails.param, squash = paramDetails.squash, encoded = paramDetails.encoded, isDefaultValue = paramDetails.isDefaultValue;\n            if (encoded == null || (isDefaultValue && squash !== false))\n                return;\n            if (!isArray(encoded))\n                encoded = [encoded];\n            if (encoded.length === 0)\n                return;\n            if (!param.raw)\n                encoded = map(encoded, encodeURIComponent);\n            return encoded.map(function (val) { return param.id + \"=\" + val; });\n        })\n            .filter(identity)\n            .reduce(unnestR, [])\n            .join('&');\n        // Concat the pathstring with the queryString (if exists) and the hashString (if exists)\n        return pathString + (queryString ? \"?\" + queryString : '') + (values['#'] ? '#' + values['#'] : '');\n    };\n    /** @internal */\n    UrlMatcher.nameValidator = /^\\w+([-.]+\\w+)*(?:\\[\\])?$/;\n    return UrlMatcher;\n}());\nexport { UrlMatcher };\n","var __assign = (this && this.__assign) || function () {\n    __assign = Object.assign || function(t) {\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\n            s = arguments[i];\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n                t[p] = s[p];\n        }\n        return t;\n    };\n    return __assign.apply(this, arguments);\n};\nimport { extend, forEach, isDefined, isFunction, isObject } from '../common';\nimport { UrlMatcher } from './urlMatcher';\nimport { DefType, Param } from '../params';\nvar ParamFactory = /** @class */ (function () {\n    function ParamFactory(router) {\n        this.router = router;\n    }\n    ParamFactory.prototype.fromConfig = function (id, type, state) {\n        return new Param(id, type, DefType.CONFIG, this.router.urlService.config, state);\n    };\n    ParamFactory.prototype.fromPath = function (id, type, state) {\n        return new Param(id, type, DefType.PATH, this.router.urlService.config, state);\n    };\n    ParamFactory.prototype.fromSearch = function (id, type, state) {\n        return new Param(id, type, DefType.SEARCH, this.router.urlService.config, state);\n    };\n    return ParamFactory;\n}());\nexport { ParamFactory };\n/**\n * Factory for [[UrlMatcher]] instances.\n *\n * The factory is available to ng1 services as\n * `$urlMatcherFactory` or ng1 providers as `$urlMatcherFactoryProvider`.\n */\nvar UrlMatcherFactory = /** @class */ (function () {\n    // TODO: move implementations to UrlConfig (urlService.config)\n    function UrlMatcherFactory(/** @internal */ router) {\n        var _this = this;\n        this.router = router;\n        /** Creates a new [[Param]] for a given location (DefType) */\n        this.paramFactory = new ParamFactory(this.router);\n        // TODO: Check if removal of this will break anything, then remove these\n        this.UrlMatcher = UrlMatcher;\n        this.Param = Param;\n        /** @deprecated use [[UrlConfig.caseInsensitive]] */\n        this.caseInsensitive = function (value) { return _this.router.urlService.config.caseInsensitive(value); };\n        /** @deprecated use [[UrlConfig.defaultSquashPolicy]] */\n        this.defaultSquashPolicy = function (value) { return _this.router.urlService.config.defaultSquashPolicy(value); };\n        /** @deprecated use [[UrlConfig.strictMode]] */\n        this.strictMode = function (value) { return _this.router.urlService.config.strictMode(value); };\n        /** @deprecated use [[UrlConfig.type]] */\n        this.type = function (name, definition, definitionFn) {\n            return _this.router.urlService.config.type(name, definition, definitionFn) || _this;\n        };\n    }\n    /**\n     * Creates a [[UrlMatcher]] for the specified pattern.\n     *\n     * @param pattern  The URL pattern.\n     * @param config  The config object hash.\n     * @returns The UrlMatcher.\n     */\n    UrlMatcherFactory.prototype.compile = function (pattern, config) {\n        var urlConfig = this.router.urlService.config;\n        // backward-compatible support for config.params -> config.state.params\n        var params = config && !config.state && config.params;\n        config = params ? __assign({ state: { params: params } }, config) : config;\n        var globalConfig = {\n            strict: urlConfig._isStrictMode,\n            caseInsensitive: urlConfig._isCaseInsensitive,\n            decodeParams: urlConfig._decodeParams,\n        };\n        return new UrlMatcher(pattern, urlConfig.paramTypes, this.paramFactory, extend(globalConfig, config));\n    };\n    /**\n     * Returns true if the specified object is a [[UrlMatcher]], or false otherwise.\n     *\n     * @param object  The object to perform the type check against.\n     * @returns `true` if the object matches the `UrlMatcher` interface, by\n     *          implementing all the same methods.\n     */\n    UrlMatcherFactory.prototype.isMatcher = function (object) {\n        // TODO: typeof?\n        if (!isObject(object))\n            return false;\n        var result = true;\n        forEach(UrlMatcher.prototype, function (val, name) {\n            if (isFunction(val))\n                result = result && isDefined(object[name]) && isFunction(object[name]);\n        });\n        return result;\n    };\n    /** @internal */\n    UrlMatcherFactory.prototype.$get = function () {\n        var urlConfig = this.router.urlService.config;\n        urlConfig.paramTypes.enqueue = false;\n        urlConfig.paramTypes._flushTypeQueue();\n        return this;\n    };\n    return UrlMatcherFactory;\n}());\nexport { UrlMatcherFactory };\n","import { stripLastPathElement } from '../common';\nimport { UrlRuleFactory } from './urlRule';\nfunction appendBasePath(url, isHtml5, absolute, baseHref) {\n    if (baseHref === '/')\n        return url;\n    if (isHtml5)\n        return stripLastPathElement(baseHref) + url;\n    if (absolute)\n        return baseHref.slice(1) + url;\n    return url;\n}\n/**\n * Updates URL and responds to URL changes\n *\n * ### Deprecation warning:\n * This class is now considered to be an internal API\n * Use the [[UrlService]] instead.\n * For configuring URL rules, use the [[UrlRules]] which can be found as [[UrlService.rules]].\n */\nvar UrlRouter = /** @class */ (function () {\n    /** @internal */\n    function UrlRouter(/** @internal */ router) {\n        var _this = this;\n        this.router = router;\n        // Delegate these calls to [[UrlService]]\n        /** @deprecated use [[UrlService.sync]]*/\n        this.sync = function (evt) { return _this.router.urlService.sync(evt); };\n        /** @deprecated use [[UrlService.listen]]*/\n        this.listen = function (enabled) { return _this.router.urlService.listen(enabled); };\n        /** @deprecated use [[UrlService.deferIntercept]]*/\n        this.deferIntercept = function (defer) { return _this.router.urlService.deferIntercept(defer); };\n        /** @deprecated use [[UrlService.match]]*/\n        this.match = function (urlParts) { return _this.router.urlService.match(urlParts); };\n        // Delegate these calls to [[UrlRules]]\n        /** @deprecated use [[UrlRules.initial]]*/\n        this.initial = function (handler) {\n            return _this.router.urlService.rules.initial(handler);\n        };\n        /** @deprecated use [[UrlRules.otherwise]]*/\n        this.otherwise = function (handler) {\n            return _this.router.urlService.rules.otherwise(handler);\n        };\n        /** @deprecated use [[UrlRules.removeRule]]*/\n        this.removeRule = function (rule) { return _this.router.urlService.rules.removeRule(rule); };\n        /** @deprecated use [[UrlRules.rule]]*/\n        this.rule = function (rule) { return _this.router.urlService.rules.rule(rule); };\n        /** @deprecated use [[UrlRules.rules]]*/\n        this.rules = function () { return _this.router.urlService.rules.rules(); };\n        /** @deprecated use [[UrlRules.sort]]*/\n        this.sort = function (compareFn) { return _this.router.urlService.rules.sort(compareFn); };\n        /** @deprecated use [[UrlRules.when]]*/\n        this.when = function (matcher, handler, options) { return _this.router.urlService.rules.when(matcher, handler, options); };\n        this.urlRuleFactory = new UrlRuleFactory(router);\n    }\n    /** Internal API. */\n    UrlRouter.prototype.update = function (read) {\n        var $url = this.router.locationService;\n        if (read) {\n            this.location = $url.url();\n            return;\n        }\n        if ($url.url() === this.location)\n            return;\n        $url.url(this.location, true);\n    };\n    /**\n     * Internal API.\n     *\n     * Pushes a new location to the browser history.\n     *\n     * @internal\n     * @param urlMatcher\n     * @param params\n     * @param options\n     */\n    UrlRouter.prototype.push = function (urlMatcher, params, options) {\n        var replace = options && !!options.replace;\n        this.router.urlService.url(urlMatcher.format(params || {}), replace);\n    };\n    /**\n     * Builds and returns a URL with interpolated parameters\n     *\n     * #### Example:\n     * ```js\n     * matcher = $umf.compile(\"/about/:person\");\n     * params = { person: \"bob\" };\n     * $bob = $urlRouter.href(matcher, params);\n     * // $bob == \"/about/bob\";\n     * ```\n     *\n     * @param urlMatcher The [[UrlMatcher]] object which is used as the template of the URL to generate.\n     * @param params An object of parameter values to fill the matcher's required parameters.\n     * @param options Options object. The options are:\n     *\n     * - **`absolute`** - {boolean=false},  If true will generate an absolute url, e.g. \"http://www.example.com/fullurl\".\n     *\n     * @returns Returns the fully compiled URL, or `null` if `params` fail validation against `urlMatcher`\n     */\n    UrlRouter.prototype.href = function (urlMatcher, params, options) {\n        var url = urlMatcher.format(params);\n        if (url == null)\n            return null;\n        options = options || { absolute: false };\n        var cfg = this.router.urlService.config;\n        var isHtml5 = cfg.html5Mode();\n        if (!isHtml5 && url !== null) {\n            url = '#' + cfg.hashPrefix() + url;\n        }\n        url = appendBasePath(url, isHtml5, options.absolute, cfg.baseHref());\n        if (!options.absolute || !url) {\n            return url;\n        }\n        var slash = !isHtml5 && url ? '/' : '';\n        var cfgPort = cfg.port();\n        var port = (cfgPort === 80 || cfgPort === 443 ? '' : ':' + cfgPort);\n        return [cfg.protocol(), '://', cfg.host(), port, slash, url].join('');\n    };\n    Object.defineProperty(UrlRouter.prototype, \"interceptDeferred\", {\n        /** @deprecated use [[UrlService.interceptDeferred]]*/\n        get: function () {\n            return this.router.urlService.interceptDeferred;\n        },\n        enumerable: false,\n        configurable: true\n    });\n    return UrlRouter;\n}());\nexport { UrlRouter };\n","import { UrlMatcher } from './urlMatcher';\nimport { isString, isDefined, isFunction } from '../common/predicates';\nimport { identity, extend } from '../common/common';\nimport { is, or, pattern } from '../common/hof';\nimport { StateObject } from '../state/stateObject';\n/**\n * Creates a [[UrlRule]]\n *\n * Creates a [[UrlRule]] from a:\n *\n * - `string`\n * - [[UrlMatcher]]\n * - `RegExp`\n * - [[StateObject]]\n */\nvar UrlRuleFactory = /** @class */ (function () {\n    function UrlRuleFactory(router) {\n        this.router = router;\n    }\n    UrlRuleFactory.prototype.compile = function (str) {\n        return this.router.urlMatcherFactory.compile(str);\n    };\n    UrlRuleFactory.prototype.create = function (what, handler) {\n        var _this = this;\n        var isState = StateObject.isState, isStateDeclaration = StateObject.isStateDeclaration;\n        var makeRule = pattern([\n            [isString, function (_what) { return makeRule(_this.compile(_what)); }],\n            [is(UrlMatcher), function (_what) { return _this.fromUrlMatcher(_what, handler); }],\n            [or(isState, isStateDeclaration), function (_what) { return _this.fromState(_what, _this.router); }],\n            [is(RegExp), function (_what) { return _this.fromRegExp(_what, handler); }],\n            [isFunction, function (_what) { return new BaseUrlRule(_what, handler); }],\n        ]);\n        var rule = makeRule(what);\n        if (!rule)\n            throw new Error(\"invalid 'what' in when()\");\n        return rule;\n    };\n    /**\n     * A UrlRule which matches based on a UrlMatcher\n     *\n     * The `handler` may be either a `string`, a [[UrlRuleHandlerFn]] or another [[UrlMatcher]]\n     *\n     * ## Handler as a function\n     *\n     * If `handler` is a function, the function is invoked with:\n     *\n     * - matched parameter values ([[RawParams]] from [[UrlMatcher.exec]])\n     * - url: the current Url ([[UrlParts]])\n     * - router: the router object ([[UIRouter]])\n     *\n     * #### Example:\n     * ```js\n     * var urlMatcher = $umf.compile(\"/foo/:fooId/:barId\");\n     * var rule = factory.fromUrlMatcher(urlMatcher, match => \"/home/\" + match.fooId + \"/\" + match.barId);\n     * var match = rule.match('/foo/123/456'); // results in { fooId: '123', barId: '456' }\n     * var result = rule.handler(match); // '/home/123/456'\n     * ```\n     *\n     * ## Handler as UrlMatcher\n     *\n     * If `handler` is a UrlMatcher, the handler matcher is used to create the new url.\n     * The `handler` UrlMatcher is formatted using the matched param from the first matcher.\n     * The url is replaced with the result.\n     *\n     * #### Example:\n     * ```js\n     * var urlMatcher = $umf.compile(\"/foo/:fooId/:barId\");\n     * var handler = $umf.compile(\"/home/:fooId/:barId\");\n     * var rule = factory.fromUrlMatcher(urlMatcher, handler);\n     * var match = rule.match('/foo/123/456'); // results in { fooId: '123', barId: '456' }\n     * var result = rule.handler(match); // '/home/123/456'\n     * ```\n     */\n    UrlRuleFactory.prototype.fromUrlMatcher = function (urlMatcher, handler) {\n        var _handler = handler;\n        if (isString(handler))\n            handler = this.router.urlMatcherFactory.compile(handler);\n        if (is(UrlMatcher)(handler))\n            _handler = function (match) { return handler.format(match); };\n        function matchUrlParamters(url) {\n            var params = urlMatcher.exec(url.path, url.search, url.hash);\n            return urlMatcher.validates(params) && params;\n        }\n        // Prioritize URLs, lowest to highest:\n        // - Some optional URL parameters, but none matched\n        // - No optional parameters in URL\n        // - Some optional parameters, some matched\n        // - Some optional parameters, all matched\n        function matchPriority(params) {\n            var optional = urlMatcher.parameters().filter(function (param) { return param.isOptional; });\n            if (!optional.length)\n                return 0.000001;\n            var matched = optional.filter(function (param) { return params[param.id]; });\n            return matched.length / optional.length;\n        }\n        var details = { urlMatcher: urlMatcher, matchPriority: matchPriority, type: 'URLMATCHER' };\n        return extend(new BaseUrlRule(matchUrlParamters, _handler), details);\n    };\n    /**\n     * A UrlRule which matches a state by its url\n     *\n     * #### Example:\n     * ```js\n     * var rule = factory.fromState($state.get('foo'), router);\n     * var match = rule.match('/foo/123/456'); // results in { fooId: '123', barId: '456' }\n     * var result = rule.handler(match);\n     * // Starts a transition to 'foo' with params: { fooId: '123', barId: '456' }\n     * ```\n     */\n    UrlRuleFactory.prototype.fromState = function (stateOrDecl, router) {\n        var state = StateObject.isStateDeclaration(stateOrDecl) ? stateOrDecl.$$state() : stateOrDecl;\n        /**\n         * Handles match by transitioning to matched state\n         *\n         * First checks if the router should start a new transition.\n         * A new transition is not required if the current state's URL\n         * and the new URL are already identical\n         */\n        var handler = function (match) {\n            var $state = router.stateService;\n            var globals = router.globals;\n            if ($state.href(state, match) !== $state.href(globals.current, globals.params)) {\n                $state.transitionTo(state, match, { inherit: true, source: 'url' });\n            }\n        };\n        var details = { state: state, type: 'STATE' };\n        return extend(this.fromUrlMatcher(state.url, handler), details);\n    };\n    /**\n     * A UrlRule which matches based on a regular expression\n     *\n     * The `handler` may be either a [[UrlRuleHandlerFn]] or a string.\n     *\n     * ## Handler as a function\n     *\n     * If `handler` is a function, the function is invoked with:\n     *\n     * - regexp match array (from `regexp`)\n     * - url: the current Url ([[UrlParts]])\n     * - router: the router object ([[UIRouter]])\n     *\n     * #### Example:\n     * ```js\n     * var rule = factory.fromRegExp(/^\\/foo\\/(bar|baz)$/, match => \"/home/\" + match[1])\n     * var match = rule.match('/foo/bar'); // results in [ '/foo/bar', 'bar' ]\n     * var result = rule.handler(match); // '/home/bar'\n     * ```\n     *\n     * ## Handler as string\n     *\n     * If `handler` is a string, the url is *replaced by the string* when the Rule is invoked.\n     * The string is first interpolated using `string.replace()` style pattern.\n     *\n     * #### Example:\n     * ```js\n     * var rule = factory.fromRegExp(/^\\/foo\\/(bar|baz)$/, \"/home/$1\")\n     * var match = rule.match('/foo/bar'); // results in [ '/foo/bar', 'bar' ]\n     * var result = rule.handler(match); // '/home/bar'\n     * ```\n     */\n    UrlRuleFactory.prototype.fromRegExp = function (regexp, handler) {\n        if (regexp.global || regexp.sticky)\n            throw new Error('Rule RegExp must not be global or sticky');\n        /**\n         * If handler is a string, the url will be replaced by the string.\n         * If the string has any String.replace() style variables in it (like `$2`),\n         * they will be replaced by the captures from [[match]]\n         */\n        var redirectUrlTo = function (match) {\n            // Interpolates matched values into $1 $2, etc using a String.replace()-style pattern\n            return handler.replace(/\\$(\\$|\\d{1,2})/, function (m, what) { return match[what === '$' ? 0 : Number(what)]; });\n        };\n        var _handler = isString(handler) ? redirectUrlTo : handler;\n        var matchParamsFromRegexp = function (url) { return regexp.exec(url.path); };\n        var details = { regexp: regexp, type: 'REGEXP' };\n        return extend(new BaseUrlRule(matchParamsFromRegexp, _handler), details);\n    };\n    UrlRuleFactory.isUrlRule = function (obj) { return obj && ['type', 'match', 'handler'].every(function (key) { return isDefined(obj[key]); }); };\n    return UrlRuleFactory;\n}());\nexport { UrlRuleFactory };\n/**\n * A base rule which calls `match`\n *\n * The value from the `match` function is passed through to the `handler`.\n * @internal\n */\nvar BaseUrlRule = /** @class */ (function () {\n    function BaseUrlRule(match, handler) {\n        var _this = this;\n        this.match = match;\n        this.type = 'RAW';\n        this.matchPriority = function (match) { return 0 - _this.$id; };\n        this.handler = handler || identity;\n    }\n    return BaseUrlRule;\n}());\nexport { BaseUrlRule };\n","import { TargetState } from '../state';\nimport { UrlMatcher } from './urlMatcher';\nimport { is, isDefined, isFunction, isString, removeFrom, val } from '../common';\nimport { UrlRuleFactory } from './urlRule';\nvar prioritySort = function (a, b) { return (b.priority || 0) - (a.priority || 0); };\nvar typeSort = function (a, b) {\n    var weights = { STATE: 4, URLMATCHER: 4, REGEXP: 3, RAW: 2, OTHER: 1 };\n    return (weights[a.type] || 0) - (weights[b.type] || 0);\n};\nvar urlMatcherSort = function (a, b) {\n    return !a.urlMatcher || !b.urlMatcher ? 0 : UrlMatcher.compare(a.urlMatcher, b.urlMatcher);\n};\nvar idSort = function (a, b) {\n    // Identically sorted STATE and URLMATCHER best rule will be chosen by `matchPriority` after each rule matches the URL\n    var useMatchPriority = { STATE: true, URLMATCHER: true };\n    var equal = useMatchPriority[a.type] && useMatchPriority[b.type];\n    return equal ? 0 : (a.$id || 0) - (b.$id || 0);\n};\n/**\n * Default rule priority sorting function.\n *\n * Sorts rules by:\n *\n * - Explicit priority (set rule priority using [[UrlRules.when]])\n * - Rule type (STATE: 4, URLMATCHER: 4, REGEXP: 3, RAW: 2, OTHER: 1)\n * - `UrlMatcher` specificity ([[UrlMatcher.compare]]): works for STATE and URLMATCHER types to pick the most specific rule.\n * - Rule registration order (for rule types other than STATE and URLMATCHER)\n *   - Equally sorted State and UrlMatcher rules will each match the URL.\n *     Then, the *best* match is chosen based on how many parameter values were matched.\n */\nvar defaultRuleSortFn;\ndefaultRuleSortFn = function (a, b) {\n    var cmp = prioritySort(a, b);\n    if (cmp !== 0)\n        return cmp;\n    cmp = typeSort(a, b);\n    if (cmp !== 0)\n        return cmp;\n    cmp = urlMatcherSort(a, b);\n    if (cmp !== 0)\n        return cmp;\n    return idSort(a, b);\n};\nfunction getHandlerFn(handler) {\n    if (!isFunction(handler) && !isString(handler) && !is(TargetState)(handler) && !TargetState.isDef(handler)) {\n        throw new Error(\"'handler' must be a string, function, TargetState, or have a state: 'newtarget' property\");\n    }\n    return isFunction(handler) ? handler : val(handler);\n}\n/**\n * API for managing URL rules\n *\n * This API is used to create and manage URL rules.\n * URL rules are a mechanism to respond to specific URL patterns.\n *\n * The most commonly used methods are [[otherwise]] and [[when]].\n *\n * This API is found at `router.urlService.rules` (see: [[UIRouter.urlService]], [[URLService.rules]])\n */\nvar UrlRules = /** @class */ (function () {\n    /** @internal */\n    function UrlRules(/** @internal */ router) {\n        this.router = router;\n        /** @internal */ this._sortFn = defaultRuleSortFn;\n        /** @internal */ this._rules = [];\n        /** @internal */ this._id = 0;\n        this.urlRuleFactory = new UrlRuleFactory(router);\n    }\n    /** @internal */\n    UrlRules.prototype.dispose = function (router) {\n        this._rules = [];\n        delete this._otherwiseFn;\n    };\n    /**\n     * Defines the initial state, path, or behavior to use when the app starts.\n     *\n     * This rule defines the initial/starting state for the application.\n     *\n     * This rule is triggered the first time the URL is checked (when the app initially loads).\n     * The rule is triggered only when the url matches either `\"\"` or `\"/\"`.\n     *\n     * Note: The rule is intended to be used when the root of the application is directly linked to.\n     * When the URL is *not* `\"\"` or `\"/\"` and doesn't match other rules, the [[otherwise]] rule is triggered.\n     * This allows 404-like behavior when an unknown URL is deep-linked.\n     *\n     * #### Example:\n     * Start app at `home` state.\n     * ```js\n     * .initial({ state: 'home' });\n     * ```\n     *\n     * #### Example:\n     * Start app at `/home` (by url)\n     * ```js\n     * .initial('/home');\n     * ```\n     *\n     * #### Example:\n     * When no other url rule matches, go to `home` state\n     * ```js\n     * .initial((matchValue, url, router) => {\n     *   console.log('initial state');\n     *   return { state: 'home' };\n     * })\n     * ```\n     *\n     * @param handler The initial state or url path, or a function which returns the state or url path (or performs custom logic).\n     */\n    UrlRules.prototype.initial = function (handler) {\n        var handlerFn = getHandlerFn(handler);\n        var matchFn = function (urlParts, router) {\n            return router.globals.transitionHistory.size() === 0 && !!/^\\/?$/.exec(urlParts.path);\n        };\n        this.rule(this.urlRuleFactory.create(matchFn, handlerFn));\n    };\n    /**\n     * Defines the state, url, or behavior to use when no other rule matches the URL.\n     *\n     * This rule is matched when *no other rule* matches.\n     * It is generally used to handle unknown URLs (similar to \"404\" behavior, but on the client side).\n     *\n     * - If `handler` a string, it is treated as a url redirect\n     *\n     * #### Example:\n     * When no other url rule matches, redirect to `/index`\n     * ```js\n     * .otherwise('/index');\n     * ```\n     *\n     * - If `handler` is an object with a `state` property, the state is activated.\n     *\n     * #### Example:\n     * When no other url rule matches, redirect to `home` and provide a `dashboard` parameter value.\n     * ```js\n     * .otherwise({ state: 'home', params: { dashboard: 'default' } });\n     * ```\n     *\n     * - If `handler` is a function, the function receives the current url ([[UrlParts]]) and the [[UIRouter]] object.\n     *   The function can perform actions, and/or return a value.\n     *\n     * #### Example:\n     * When no other url rule matches, manually trigger a transition to the `home` state\n     * ```js\n     * .otherwise((matchValue, urlParts, router) => {\n     *   router.stateService.go('home');\n     * });\n     * ```\n     *\n     * #### Example:\n     * When no other url rule matches, go to `home` state\n     * ```js\n     * .otherwise((matchValue, urlParts, router) => {\n     *   return { state: 'home' };\n     * });\n     * ```\n     *\n     * @param handler The url path to redirect to, or a function which returns the url path (or performs custom logic).\n     */\n    UrlRules.prototype.otherwise = function (handler) {\n        var handlerFn = getHandlerFn(handler);\n        this._otherwiseFn = this.urlRuleFactory.create(val(true), handlerFn);\n        this._sorted = false;\n    };\n    /**\n     * Remove a rule previously registered\n     *\n     * @param rule the matcher rule that was previously registered using [[rule]]\n     */\n    UrlRules.prototype.removeRule = function (rule) {\n        removeFrom(this._rules, rule);\n    };\n    /**\n     * Manually adds a URL Rule.\n     *\n     * Usually, a url rule is added using [[StateDeclaration.url]] or [[when]].\n     * This api can be used directly for more control (to register a [[BaseUrlRule]], for example).\n     * Rules can be created using [[urlRuleFactory]], or created manually as simple objects.\n     *\n     * A rule should have a `match` function which returns truthy if the rule matched.\n     * It should also have a `handler` function which is invoked if the rule is the best match.\n     *\n     * @return a function that deregisters the rule\n     */\n    UrlRules.prototype.rule = function (rule) {\n        var _this = this;\n        if (!UrlRuleFactory.isUrlRule(rule))\n            throw new Error('invalid rule');\n        rule.$id = this._id++;\n        rule.priority = rule.priority || 0;\n        this._rules.push(rule);\n        this._sorted = false;\n        return function () { return _this.removeRule(rule); };\n    };\n    /**\n     * Gets all registered rules\n     *\n     * @returns an array of all the registered rules\n     */\n    UrlRules.prototype.rules = function () {\n        this.ensureSorted();\n        return this._rules.concat(this._otherwiseFn ? [this._otherwiseFn] : []);\n    };\n    /**\n     * Defines URL Rule priorities\n     *\n     * More than one rule ([[UrlRule]]) might match a given URL.\n     * This `compareFn` is used to sort the rules by priority.\n     * Higher priority rules should sort earlier.\n     *\n     * The [[defaultRuleSortFn]] is used by default.\n     *\n     * You only need to call this function once.\n     * The `compareFn` will be used to sort the rules as each is registered.\n     *\n     * If called without any parameter, it will re-sort the rules.\n     *\n     * ---\n     *\n     * Url rules may come from multiple sources: states's urls ([[StateDeclaration.url]]), [[when]], and [[rule]].\n     * Each rule has a (user-provided) [[UrlRule.priority]], a [[UrlRule.type]], and a [[UrlRule.$id]]\n     * The `$id` is is the order in which the rule was registered.\n     *\n     * The sort function should use these data, or data found on a specific type\n     * of [[UrlRule]] (such as [[StateRule.state]]), to order the rules as desired.\n     *\n     * #### Example:\n     * This compare function prioritizes rules by the order in which the rules were registered.\n     * A rule registered earlier has higher priority.\n     *\n     * ```js\n     * function compareFn(a, b) {\n     *   return a.$id - b.$id;\n     * }\n     * ```\n     *\n     * @param compareFn a function that compares to [[UrlRule]] objects.\n     *    The `compareFn` should abide by the `Array.sort` compare function rules.\n     *    Given two rules, `a` and `b`, return a negative number if `a` should be higher priority.\n     *    Return a positive number if `b` should be higher priority.\n     *    Return `0` if the rules are identical.\n     *\n     *    See the [mozilla reference](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#Description)\n     *    for details.\n     */\n    UrlRules.prototype.sort = function (compareFn) {\n        var sorted = this.stableSort(this._rules, (this._sortFn = compareFn || this._sortFn));\n        // precompute _sortGroup values and apply to each rule\n        var group = 0;\n        for (var i = 0; i < sorted.length; i++) {\n            sorted[i]._group = group;\n            if (i < sorted.length - 1 && this._sortFn(sorted[i], sorted[i + 1]) !== 0) {\n                group++;\n            }\n        }\n        this._rules = sorted;\n        this._sorted = true;\n    };\n    /** @internal */\n    UrlRules.prototype.ensureSorted = function () {\n        this._sorted || this.sort();\n    };\n    /** @internal */\n    UrlRules.prototype.stableSort = function (arr, compareFn) {\n        var arrOfWrapper = arr.map(function (elem, idx) { return ({ elem: elem, idx: idx }); });\n        arrOfWrapper.sort(function (wrapperA, wrapperB) {\n            var cmpDiff = compareFn(wrapperA.elem, wrapperB.elem);\n            return cmpDiff === 0 ? wrapperA.idx - wrapperB.idx : cmpDiff;\n        });\n        return arrOfWrapper.map(function (wrapper) { return wrapper.elem; });\n    };\n    /**\n     * Registers a `matcher` and `handler` for custom URLs handling.\n     *\n     * The `matcher` can be:\n     *\n     * - a [[UrlMatcher]]: See: [[UrlMatcherFactory.compile]]\n     * - a `string`: The string is compiled to a [[UrlMatcher]]\n     * - a `RegExp`: The regexp is used to match the url.\n     *\n     * The `handler` can be:\n     *\n     * - a string: The url is redirected to the value of the string.\n     * - a function: The url is redirected to the return value of the function.\n     *\n     * ---\n     *\n     * When the `handler` is a `string` and the `matcher` is a `UrlMatcher` (or string), the redirect\n     * string is interpolated with parameter values.\n     *\n     * #### Example:\n     * When the URL is `/foo/123` the rule will redirect to `/bar/123`.\n     * ```js\n     * .when(\"/foo/:param1\", \"/bar/:param1\")\n     * ```\n     *\n     * ---\n     *\n     * When the `handler` is a string and the `matcher` is a `RegExp`, the redirect string is\n     * interpolated with capture groups from the RegExp.\n     *\n     * #### Example:\n     * When the URL is `/foo/123` the rule will redirect to `/bar/123`.\n     * ```js\n     * .when(new RegExp(\"^/foo/(.*)$\"), \"/bar/$1\");\n     * ```\n     *\n     * ---\n     *\n     * When the handler is a function, it receives the matched value, the current URL, and the `UIRouter` object (See [[UrlRuleHandlerFn]]).\n     * The \"matched value\" differs based on the `matcher`.\n     * For [[UrlMatcher]]s, it will be the matched state params.\n     * For `RegExp`, it will be the match array from `regexp.exec()`.\n     *\n     * If the handler returns a string, the URL is redirected to the string.\n     *\n     * #### Example:\n     * When the URL is `/foo/123` the rule will redirect to `/bar/123`.\n     * ```js\n     * .when(new RegExp(\"^/foo/(.*)$\"), match => \"/bar/\" + match[1]);\n     * ```\n     *\n     * Note: the `handler` may also invoke arbitrary code, such as `$state.go()`\n     *\n     * @param matcher A pattern `string` to match, compiled as a [[UrlMatcher]], or a `RegExp`.\n     * @param handler The path to redirect to, or a function that returns the path.\n     * @param options `{ priority: number }`\n     *\n     * @return the registered [[UrlRule]]\n     */\n    UrlRules.prototype.when = function (matcher, handler, options) {\n        var rule = this.urlRuleFactory.create(matcher, handler);\n        if (isDefined(options && options.priority))\n            rule.priority = options.priority;\n        this.rule(rule);\n        return rule;\n    };\n    return UrlRules;\n}());\nexport { UrlRules };\n","import { extend, is, isString, pattern } from '../common';\nimport { UrlRules } from './urlRules';\nimport { UrlConfig } from './urlConfig';\nimport { TargetState } from '../state';\n/**\n * API for URL management\n */\nvar UrlService = /** @class */ (function () {\n    /** @internal */\n    function UrlService(/** @internal */ router) {\n        var _this = this;\n        this.router = router;\n        /** @internal */ this.interceptDeferred = false;\n        /**\n         * The nested [[UrlRules]] API for managing URL rules and rewrites\n         *\n         * See: [[UrlRules]] for details\n         */\n        this.rules = new UrlRules(this.router);\n        /**\n         * The nested [[UrlConfig]] API to configure the URL and retrieve URL information\n         *\n         * See: [[UrlConfig]] for details\n         */\n        this.config = new UrlConfig(this.router);\n        // Delegate these calls to the current LocationServices implementation\n        /**\n         * Gets the current url, or updates the url\n         *\n         * ### Getting the current URL\n         *\n         * When no arguments are passed, returns the current URL.\n         * The URL is normalized using the internal [[path]]/[[search]]/[[hash]] values.\n         *\n         * For example, the URL may be stored in the hash ([[HashLocationServices]]) or\n         * have a base HREF prepended ([[PushStateLocationServices]]).\n         *\n         * The raw URL in the browser might be:\n         *\n         * ```\n         * http://mysite.com/somepath/index.html#/internal/path/123?param1=foo#anchor\n         * ```\n         *\n         * or\n         *\n         * ```\n         * http://mysite.com/basepath/internal/path/123?param1=foo#anchor\n         * ```\n         *\n         * then this method returns:\n         *\n         * ```\n         * /internal/path/123?param1=foo#anchor\n         * ```\n         *\n         *\n         * #### Example:\n         * ```js\n         * locationServices.url(); // \"/some/path?query=value#anchor\"\n         * ```\n         *\n         * ### Updating the URL\n         *\n         * When `newurl` arguments is provided, changes the URL to reflect `newurl`\n         *\n         * #### Example:\n         * ```js\n         * locationServices.url(\"/some/path?query=value#anchor\", true);\n         * ```\n         *\n         * @param newurl The new value for the URL.\n         *               This url should reflect only the new internal [[path]], [[search]], and [[hash]] values.\n         *               It should not include the protocol, site, port, or base path of an absolute HREF.\n         * @param replace When true, replaces the current history entry (instead of appending it) with this new url\n         * @param state The history's state object, i.e., pushState (if the LocationServices implementation supports it)\n         *\n         * @return the url (after potentially being processed)\n         */\n        this.url = function (newurl, replace, state) {\n            return _this.router.locationService.url(newurl, replace, state);\n        };\n        /**\n         * Gets the path part of the current url\n         *\n         * If the current URL is `/some/path?query=value#anchor`, this returns `/some/path`\n         *\n         * @return the path portion of the url\n         */\n        this.path = function () { return _this.router.locationService.path(); };\n        /**\n         * Gets the search part of the current url as an object\n         *\n         * If the current URL is `/some/path?query=value#anchor`, this returns `{ query: 'value' }`\n         *\n         * @return the search (query) portion of the url, as an object\n         */\n        this.search = function () { return _this.router.locationService.search(); };\n        /**\n         * Gets the hash part of the current url\n         *\n         * If the current URL is `/some/path?query=value#anchor`, this returns `anchor`\n         *\n         * @return the hash (anchor) portion of the url\n         */\n        this.hash = function () { return _this.router.locationService.hash(); };\n        /**\n         * @internal\n         *\n         * Registers a low level url change handler\n         *\n         * Note: Because this is a low level handler, it's not recommended for general use.\n         *\n         * #### Example:\n         * ```js\n         * let deregisterFn = locationServices.onChange((evt) => console.log(\"url change\", evt));\n         * ```\n         *\n         * @param callback a function that will be called when the url is changing\n         * @return a function that de-registers the callback\n         */\n        this.onChange = function (callback) { return _this.router.locationService.onChange(callback); };\n    }\n    /** @internal */\n    UrlService.prototype.dispose = function () {\n        this.listen(false);\n        this.rules.dispose();\n    };\n    /**\n     * Gets the current URL parts\n     *\n     * This method returns the different parts of the current URL (the [[path]], [[search]], and [[hash]]) as a [[UrlParts]] object.\n     */\n    UrlService.prototype.parts = function () {\n        return { path: this.path(), search: this.search(), hash: this.hash() };\n    };\n    /**\n     * Activates the best rule for the current URL\n     *\n     * Checks the current URL for a matching [[UrlRule]], then invokes that rule's handler.\n     * This method is called internally any time the URL has changed.\n     *\n     * This effectively activates the state (or redirect, etc) which matches the current URL.\n     *\n     * #### Example:\n     * ```js\n     * urlService.deferIntercept();\n     *\n     * fetch('/states.json').then(resp => resp.json()).then(data => {\n     *   data.forEach(state => $stateRegistry.register(state));\n     *   urlService.listen();\n     *   // Find the matching URL and invoke the handler.\n     *   urlService.sync();\n     * });\n     * ```\n     */\n    UrlService.prototype.sync = function (evt) {\n        if (evt && evt.defaultPrevented)\n            return;\n        var _a = this.router, urlService = _a.urlService, stateService = _a.stateService;\n        var url = { path: urlService.path(), search: urlService.search(), hash: urlService.hash() };\n        var best = this.match(url);\n        var applyResult = pattern([\n            [isString, function (newurl) { return urlService.url(newurl, true); }],\n            [TargetState.isDef, function (def) { return stateService.go(def.state, def.params, def.options); }],\n            [is(TargetState), function (target) { return stateService.go(target.state(), target.params(), target.options()); }],\n        ]);\n        applyResult(best && best.rule.handler(best.match, url, this.router));\n    };\n    /**\n     * Starts or stops listening for URL changes\n     *\n     * Call this sometime after calling [[deferIntercept]] to start monitoring the url.\n     * This causes UI-Router to start listening for changes to the URL, if it wasn't already listening.\n     *\n     * If called with `false`, UI-Router will stop listening (call listen(true) to start listening again).\n     *\n     * #### Example:\n     * ```js\n     * urlService.deferIntercept();\n     *\n     * fetch('/states.json').then(resp => resp.json()).then(data => {\n     *   data.forEach(state => $stateRegistry.register(state));\n     *   // Start responding to URL changes\n     *   urlService.listen();\n     *   urlService.sync();\n     * });\n     * ```\n     *\n     * @param enabled `true` or `false` to start or stop listening to URL changes\n     */\n    UrlService.prototype.listen = function (enabled) {\n        var _this = this;\n        if (enabled === false) {\n            this._stopListeningFn && this._stopListeningFn();\n            delete this._stopListeningFn;\n        }\n        else {\n            return (this._stopListeningFn =\n                this._stopListeningFn || this.router.urlService.onChange(function (evt) { return _this.sync(evt); }));\n        }\n    };\n    /**\n     * Disables monitoring of the URL.\n     *\n     * Call this method before UI-Router has bootstrapped.\n     * It will stop UI-Router from performing the initial url sync.\n     *\n     * This can be useful to perform some asynchronous initialization before the router starts.\n     * Once the initialization is complete, call [[listen]] to tell UI-Router to start watching and synchronizing the URL.\n     *\n     * #### Example:\n     * ```js\n     * // Prevent UI-Router from automatically intercepting URL changes when it starts;\n     * urlService.deferIntercept();\n     *\n     * fetch('/states.json').then(resp => resp.json()).then(data => {\n     *   data.forEach(state => $stateRegistry.register(state));\n     *   urlService.listen();\n     *   urlService.sync();\n     * });\n     * ```\n     *\n     * @param defer Indicates whether to defer location change interception.\n     *        Passing no parameter is equivalent to `true`.\n     */\n    UrlService.prototype.deferIntercept = function (defer) {\n        if (defer === undefined)\n            defer = true;\n        this.interceptDeferred = defer;\n    };\n    /**\n     * Matches a URL\n     *\n     * Given a URL (as a [[UrlParts]] object), check all rules and determine the best matching rule.\n     * Return the result as a [[MatchResult]].\n     */\n    UrlService.prototype.match = function (url) {\n        var _this = this;\n        url = extend({ path: '', search: {}, hash: '' }, url);\n        var rules = this.rules.rules();\n        // Checks a single rule. Returns { rule: rule, match: match, weight: weight } if it matched, or undefined\n        var checkRule = function (rule) {\n            var match = rule.match(url, _this.router);\n            return match && { match: match, rule: rule, weight: rule.matchPriority(match) };\n        };\n        // The rules are pre-sorted.\n        // - Find the first matching rule.\n        // - Find any other matching rule that sorted *exactly the same*, according to `.sort()`.\n        // - Choose the rule with the highest match weight.\n        var best;\n        for (var i = 0; i < rules.length; i++) {\n            // Stop when there is a 'best' rule and the next rule sorts differently than it.\n            if (best && best.rule._group !== rules[i]._group)\n                break;\n            var current = checkRule(rules[i]);\n            // Pick the best MatchResult\n            best = !best || (current && current.weight > best.weight) ? current : best;\n        }\n        return best;\n    };\n    return UrlService;\n}());\nexport { UrlService };\n","import { identity, unnestR, isArray, splitEqual, splitHash, splitQuery, } from '../common';\nexport var keyValsToObjectR = function (accum, _a) {\n    var key = _a[0], val = _a[1];\n    if (!accum.hasOwnProperty(key)) {\n        accum[key] = val;\n    }\n    else if (isArray(accum[key])) {\n        accum[key].push(val);\n    }\n    else {\n        accum[key] = [accum[key], val];\n    }\n    return accum;\n};\nexport var getParams = function (queryString) {\n    return queryString.split('&').filter(identity).map(splitEqual).reduce(keyValsToObjectR, {});\n};\nexport function parseUrl(url) {\n    var orEmptyString = function (x) { return x || ''; };\n    var _a = splitHash(url).map(orEmptyString), beforehash = _a[0], hash = _a[1];\n    var _b = splitQuery(beforehash).map(orEmptyString), path = _b[0], search = _b[1];\n    return { path: path, search: search, hash: hash, url: url };\n}\nexport var buildUrl = function (loc) {\n    var path = loc.path();\n    var searchObject = loc.search();\n    var hash = loc.hash();\n    var search = Object.keys(searchObject)\n        .map(function (key) {\n        var param = searchObject[key];\n        var vals = isArray(param) ? param : [param];\n        return vals.map(function (val) { return key + '=' + val; });\n    })\n        .reduce(unnestR, [])\n        .join('&');\n    return path + (search ? '?' + search : '') + (hash ? '#' + hash : '');\n};\nexport function locationPluginFactory(name, isHtml5, serviceClass, configurationClass) {\n    return function (uiRouter) {\n        var service = (uiRouter.locationService = new serviceClass(uiRouter));\n        var configuration = (uiRouter.locationConfig = new configurationClass(uiRouter, isHtml5));\n        function dispose(router) {\n            router.dispose(service);\n            router.dispose(configuration);\n        }\n        return { name: name, service: service, configuration: configuration, dispose: dispose };\n    };\n}\n","import { deregAll, isDefined, removeFrom, root } from '../common';\nimport { buildUrl, getParams, parseUrl } from './utils';\n/** A base `LocationServices` */\nvar BaseLocationServices = /** @class */ (function () {\n    function BaseLocationServices(router, fireAfterUpdate) {\n        var _this = this;\n        this.fireAfterUpdate = fireAfterUpdate;\n        this._listeners = [];\n        this._listener = function (evt) { return _this._listeners.forEach(function (cb) { return cb(evt); }); };\n        this.hash = function () { return parseUrl(_this._get()).hash; };\n        this.path = function () { return parseUrl(_this._get()).path; };\n        this.search = function () { return getParams(parseUrl(_this._get()).search); };\n        this._location = root.location;\n        this._history = root.history;\n    }\n    BaseLocationServices.prototype.url = function (url, replace) {\n        if (replace === void 0) { replace = true; }\n        if (isDefined(url) && url !== this._get()) {\n            this._set(null, null, url, replace);\n            if (this.fireAfterUpdate) {\n                this._listeners.forEach(function (cb) { return cb({ url: url }); });\n            }\n        }\n        return buildUrl(this);\n    };\n    BaseLocationServices.prototype.onChange = function (cb) {\n        var _this = this;\n        this._listeners.push(cb);\n        return function () { return removeFrom(_this._listeners, cb); };\n    };\n    BaseLocationServices.prototype.dispose = function (router) {\n        deregAll(this._listeners);\n    };\n    return BaseLocationServices;\n}());\nexport { BaseLocationServices };\n","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\nimport { root, trimHashVal } from '../common';\nimport { BaseLocationServices } from './baseLocationService';\n/** A `LocationServices` that uses the browser hash \"#\" to get/set the current location */\nvar HashLocationService = /** @class */ (function (_super) {\n    __extends(HashLocationService, _super);\n    function HashLocationService(router) {\n        var _this = _super.call(this, router, false) || this;\n        root.addEventListener('hashchange', _this._listener, false);\n        return _this;\n    }\n    HashLocationService.prototype._get = function () {\n        return trimHashVal(this._location.hash);\n    };\n    HashLocationService.prototype._set = function (state, title, url, replace) {\n        this._location.hash = url;\n    };\n    HashLocationService.prototype.dispose = function (router) {\n        _super.prototype.dispose.call(this, router);\n        root.removeEventListener('hashchange', this._listener);\n    };\n    return HashLocationService;\n}(BaseLocationServices));\nexport { HashLocationService };\n","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\nimport { BaseLocationServices } from './baseLocationService';\n/** A `LocationServices` that gets/sets the current location from an in-memory object */\nvar MemoryLocationService = /** @class */ (function (_super) {\n    __extends(MemoryLocationService, _super);\n    function MemoryLocationService(router) {\n        return _super.call(this, router, true) || this;\n    }\n    MemoryLocationService.prototype._get = function () {\n        return this._url;\n    };\n    MemoryLocationService.prototype._set = function (state, title, url, replace) {\n        this._url = url;\n    };\n    return MemoryLocationService;\n}(BaseLocationServices));\nexport { MemoryLocationService };\n","var __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    };\n    return function (d, b) {\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\nimport { BaseLocationServices } from './baseLocationService';\nimport { root, splitHash, splitQuery, stripLastPathElement } from '../common';\n/**\n * A `LocationServices` that gets/sets the current location using the browser's `location` and `history` apis\n *\n * Uses `history.pushState` and `history.replaceState`\n */\nvar PushStateLocationService = /** @class */ (function (_super) {\n    __extends(PushStateLocationService, _super);\n    function PushStateLocationService(router) {\n        var _this = _super.call(this, router, true) || this;\n        _this._config = router.urlService.config;\n        root.addEventListener('popstate', _this._listener, false);\n        return _this;\n    }\n    /**\n     * Gets the base prefix without:\n     * - trailing slash\n     * - trailing filename\n     * - protocol and hostname\n     *\n     * If <base href='/base/'>, this returns '/base'.\n     * If <base href='/foo/base/'>, this returns '/foo/base'.\n     * If <base href='/base/index.html'>, this returns '/base'.\n     * If <base href='http://localhost:8080/base/index.html'>, this returns '/base'.\n     * If <base href='/base'>, this returns ''.\n     * If <base href='http://localhost:8080'>, this returns ''.\n     * If <base href='http://localhost:8080/'>, this returns ''.\n     *\n     * See: https://html.spec.whatwg.org/dev/semantics.html#the-base-element\n     */\n    PushStateLocationService.prototype._getBasePrefix = function () {\n        return stripLastPathElement(this._config.baseHref());\n    };\n    PushStateLocationService.prototype._get = function () {\n        var _a = this._location, pathname = _a.pathname, hash = _a.hash, search = _a.search;\n        search = splitQuery(search)[1]; // strip ? if found\n        hash = splitHash(hash)[1]; // strip # if found\n        var basePrefix = this._getBasePrefix();\n        var exactBaseHrefMatch = pathname === this._config.baseHref();\n        var startsWithBase = pathname.substr(0, basePrefix.length) === basePrefix;\n        pathname = exactBaseHrefMatch ? '/' : startsWithBase ? pathname.substring(basePrefix.length) : pathname;\n        return pathname + (search ? '?' + search : '') + (hash ? '#' + hash : '');\n    };\n    PushStateLocationService.prototype._set = function (state, title, url, replace) {\n        var basePrefix = this._getBasePrefix();\n        var slash = url && url[0] !== '/' ? '/' : '';\n        var fullUrl = url === '' || url === '/' ? this._config.baseHref() : basePrefix + slash + url;\n        if (replace) {\n            this._history.replaceState(state, title, fullUrl);\n        }\n        else {\n            this._history.pushState(state, title, fullUrl);\n        }\n    };\n    PushStateLocationService.prototype.dispose = function (router) {\n        _super.prototype.dispose.call(this, router);\n        root.removeEventListener('popstate', this._listener);\n    };\n    return PushStateLocationService;\n}(BaseLocationServices));\nexport { PushStateLocationService };\n","import { isDefined, isUndefined } from '../common/predicates';\n/** A `LocationConfig` that delegates to the browser's `location` object */\nvar BrowserLocationConfig = /** @class */ (function () {\n    function BrowserLocationConfig(router, _isHtml5) {\n        if (_isHtml5 === void 0) { _isHtml5 = false; }\n        this._isHtml5 = _isHtml5;\n        this._baseHref = undefined;\n        this._hashPrefix = '';\n    }\n    BrowserLocationConfig.prototype.port = function () {\n        if (location.port) {\n            return Number(location.port);\n        }\n        return this.protocol() === 'https' ? 443 : 80;\n    };\n    BrowserLocationConfig.prototype.protocol = function () {\n        return location.protocol.replace(/:/g, '');\n    };\n    BrowserLocationConfig.prototype.host = function () {\n        return location.hostname;\n    };\n    BrowserLocationConfig.prototype.html5Mode = function () {\n        return this._isHtml5;\n    };\n    BrowserLocationConfig.prototype.hashPrefix = function (newprefix) {\n        return isDefined(newprefix) ? (this._hashPrefix = newprefix) : this._hashPrefix;\n    };\n    BrowserLocationConfig.prototype.baseHref = function (href) {\n        if (isDefined(href))\n            this._baseHref = href;\n        if (isUndefined(this._baseHref))\n            this._baseHref = this.getBaseHref();\n        return this._baseHref;\n    };\n    BrowserLocationConfig.prototype.getBaseHref = function () {\n        var baseTag = document.getElementsByTagName('base')[0];\n        if (baseTag && baseTag.href) {\n            return baseTag.href.replace(/^([^/:]*:)?\\/\\/[^/]*/, '');\n        }\n        return this._isHtml5 ? '/' : location.pathname || '/';\n    };\n    BrowserLocationConfig.prototype.dispose = function () { };\n    return BrowserLocationConfig;\n}());\nexport { BrowserLocationConfig };\n","import { BrowserLocationConfig } from './browserLocationConfig';\nimport { HashLocationService } from './hashLocationService';\nimport { locationPluginFactory } from './utils';\nimport { PushStateLocationService } from './pushStateLocationService';\nimport { MemoryLocationService } from './memoryLocationService';\nimport { MemoryLocationConfig } from './memoryLocationConfig';\nimport { $injector } from './injector';\nimport { $q } from './q';\nimport { services } from '../common/coreservices';\nexport function servicesPlugin(router) {\n    services.$injector = $injector;\n    services.$q = $q;\n    return { name: 'vanilla.services', $q: $q, $injector: $injector, dispose: function () { return null; } };\n}\n/** A `UIRouterPlugin` uses the browser hash to get/set the current location */\nexport var hashLocationPlugin = locationPluginFactory('vanilla.hashBangLocation', false, HashLocationService, BrowserLocationConfig);\n/** A `UIRouterPlugin` that gets/sets the current location using the browser's `location` and `history` apis */\nexport var pushStateLocationPlugin = locationPluginFactory('vanilla.pushStateLocation', true, PushStateLocationService, BrowserLocationConfig);\n/** A `UIRouterPlugin` that gets/sets the current location from an in-memory object */\nexport var memoryLocationPlugin = locationPluginFactory('vanilla.memoryLocation', false, MemoryLocationService, MemoryLocationConfig);\n","import { isDefined } from '../common/predicates';\nimport { noop } from '../common/common';\n/** A `LocationConfig` mock that gets/sets all config from an in-memory object */\nvar MemoryLocationConfig = /** @class */ (function () {\n    function MemoryLocationConfig() {\n        var _this = this;\n        this.dispose = noop;\n        this._baseHref = '';\n        this._port = 80;\n        this._protocol = 'http';\n        this._host = 'localhost';\n        this._hashPrefix = '';\n        this.port = function () { return _this._port; };\n        this.protocol = function () { return _this._protocol; };\n        this.host = function () { return _this._host; };\n        this.baseHref = function () { return _this._baseHref; };\n        this.html5Mode = function () { return false; };\n        this.hashPrefix = function (newval) { return (isDefined(newval) ? (_this._hashPrefix = newval) : _this._hashPrefix); };\n    }\n    return MemoryLocationConfig;\n}());\nexport { MemoryLocationConfig };\n","import { equals, applyPairs, removeFrom, inArray, find } from '../common/common';\nimport { curry, prop } from '../common/hof';\nimport { isString, isArray } from '../common/predicates';\nimport { trace } from '../common/trace';\n/**\n * The View service\n *\n * This service pairs existing `ui-view` components (which live in the DOM)\n * with view configs (from the state declaration objects: [[StateDeclaration.views]]).\n *\n * - After a successful Transition, the views from the newly entered states are activated via [[activateViewConfig]].\n *   The views from exited states are deactivated via [[deactivateViewConfig]].\n *   (See: the [[registerActivateViews]] Transition Hook)\n *\n * - As `ui-view` components pop in and out of existence, they register themselves using [[registerUIView]].\n *\n * - When the [[sync]] function is called, the registered `ui-view`(s) ([[ActiveUIView]])\n * are configured with the matching [[ViewConfig]](s)\n *\n */\nvar ViewService = /** @class */ (function () {\n    /** @internal */\n    function ViewService(/** @internal */ router) {\n        var _this = this;\n        this.router = router;\n        /** @internal */ this._uiViews = [];\n        /** @internal */ this._viewConfigs = [];\n        /** @internal */ this._viewConfigFactories = {};\n        /** @internal */ this._listeners = [];\n        /** @internal */\n        this._pluginapi = {\n            _rootViewContext: this._rootViewContext.bind(this),\n            _viewConfigFactory: this._viewConfigFactory.bind(this),\n            _registeredUIView: function (id) { return find(_this._uiViews, function (view) { return _this.router.$id + \".\" + view.id === id; }); },\n            _registeredUIViews: function () { return _this._uiViews; },\n            _activeViewConfigs: function () { return _this._viewConfigs; },\n            _onSync: function (listener) {\n                _this._listeners.push(listener);\n                return function () { return removeFrom(_this._listeners, listener); };\n            },\n        };\n    }\n    /**\n     * Normalizes a view's name from a state.views configuration block.\n     *\n     * This should be used by a framework implementation to calculate the values for\n     * [[_ViewDeclaration.$uiViewName]] and [[_ViewDeclaration.$uiViewContextAnchor]].\n     *\n     * @param context the context object (state declaration) that the view belongs to\n     * @param rawViewName the name of the view, as declared in the [[StateDeclaration.views]]\n     *\n     * @returns the normalized uiViewName and uiViewContextAnchor that the view targets\n     */\n    ViewService.normalizeUIViewTarget = function (context, rawViewName) {\n        if (rawViewName === void 0) { rawViewName = ''; }\n        // TODO: Validate incoming view name with a regexp to allow:\n        // ex: \"view.name@foo.bar\" , \"^.^.view.name\" , \"view.name@^.^\" , \"\" ,\n        // \"@\" , \"$default@^\" , \"!$default.$default\" , \"!foo.bar\"\n        var viewAtContext = rawViewName.split('@');\n        var uiViewName = viewAtContext[0] || '$default'; // default to unnamed view\n        var uiViewContextAnchor = isString(viewAtContext[1]) ? viewAtContext[1] : '^'; // default to parent context\n        // Handle relative view-name sugar syntax.\n        // Matches rawViewName \"^.^.^.foo.bar\" into array: [\"^.^.^.foo.bar\", \"^.^.^\", \"foo.bar\"],\n        var relativeViewNameSugar = /^(\\^(?:\\.\\^)*)\\.(.*$)/.exec(uiViewName);\n        if (relativeViewNameSugar) {\n            // Clobbers existing contextAnchor (rawViewName validation will fix this)\n            uiViewContextAnchor = relativeViewNameSugar[1]; // set anchor to \"^.^.^\"\n            uiViewName = relativeViewNameSugar[2]; // set view-name to \"foo.bar\"\n        }\n        if (uiViewName.charAt(0) === '!') {\n            uiViewName = uiViewName.substr(1);\n            uiViewContextAnchor = ''; // target absolutely from root\n        }\n        // handle parent relative targeting \"^.^.^\"\n        var relativeMatch = /^(\\^(?:\\.\\^)*)$/;\n        if (relativeMatch.exec(uiViewContextAnchor)) {\n            var anchorState = uiViewContextAnchor.split('.').reduce(function (anchor, x) { return anchor.parent; }, context);\n            uiViewContextAnchor = anchorState.name;\n        }\n        else if (uiViewContextAnchor === '.') {\n            uiViewContextAnchor = context.name;\n        }\n        return { uiViewName: uiViewName, uiViewContextAnchor: uiViewContextAnchor };\n    };\n    /** @internal */\n    ViewService.prototype._rootViewContext = function (context) {\n        return (this._rootContext = context || this._rootContext);\n    };\n    /** @internal */\n    ViewService.prototype._viewConfigFactory = function (viewType, factory) {\n        this._viewConfigFactories[viewType] = factory;\n    };\n    ViewService.prototype.createViewConfig = function (path, decl) {\n        var cfgFactory = this._viewConfigFactories[decl.$type];\n        if (!cfgFactory)\n            throw new Error('ViewService: No view config factory registered for type ' + decl.$type);\n        var cfgs = cfgFactory(path, decl);\n        return isArray(cfgs) ? cfgs : [cfgs];\n    };\n    /**\n     * Deactivates a ViewConfig.\n     *\n     * This function deactivates a `ViewConfig`.\n     * After calling [[sync]], it will un-pair from any `ui-view` with which it is currently paired.\n     *\n     * @param viewConfig The ViewConfig view to deregister.\n     */\n    ViewService.prototype.deactivateViewConfig = function (viewConfig) {\n        trace.traceViewServiceEvent('<- Removing', viewConfig);\n        removeFrom(this._viewConfigs, viewConfig);\n    };\n    ViewService.prototype.activateViewConfig = function (viewConfig) {\n        trace.traceViewServiceEvent('-> Registering', viewConfig);\n        this._viewConfigs.push(viewConfig);\n    };\n    ViewService.prototype.sync = function () {\n        var _this = this;\n        var uiViewsByFqn = this._uiViews.map(function (uiv) { return [uiv.fqn, uiv]; }).reduce(applyPairs, {});\n        // Return a weighted depth value for a uiView.\n        // The depth is the nesting depth of ui-views (based on FQN; times 10,000)\n        // plus the depth of the state that is populating the uiView\n        function uiViewDepth(uiView) {\n            var stateDepth = function (context) { return (context && context.parent ? stateDepth(context.parent) + 1 : 1); };\n            return uiView.fqn.split('.').length * 10000 + stateDepth(uiView.creationContext);\n        }\n        // Return the ViewConfig's context's depth in the context tree.\n        function viewConfigDepth(config) {\n            var context = config.viewDecl.$context, count = 0;\n            while (++count && context.parent)\n                context = context.parent;\n            return count;\n        }\n        // Given a depth function, returns a compare function which can return either ascending or descending order\n        var depthCompare = curry(function (depthFn, posNeg, left, right) { return posNeg * (depthFn(left) - depthFn(right)); });\n        var matchingConfigPair = function (uiView) {\n            var matchingConfigs = _this._viewConfigs.filter(ViewService.matches(uiViewsByFqn, uiView));\n            if (matchingConfigs.length > 1) {\n                // This is OK.  Child states can target a ui-view that the parent state also targets (the child wins)\n                // Sort by depth and return the match from the deepest child\n                // console.log(`Multiple matching view configs for ${uiView.fqn}`, matchingConfigs);\n                matchingConfigs.sort(depthCompare(viewConfigDepth, -1)); // descending\n            }\n            return { uiView: uiView, viewConfig: matchingConfigs[0] };\n        };\n        var configureUIView = function (tuple) {\n            // If a parent ui-view is reconfigured, it could destroy child ui-views.\n            // Before configuring a child ui-view, make sure it's still in the active uiViews array.\n            if (_this._uiViews.indexOf(tuple.uiView) !== -1)\n                tuple.uiView.configUpdated(tuple.viewConfig);\n        };\n        // Sort views by FQN and state depth. Process uiviews nearest the root first.\n        var uiViewTuples = this._uiViews.sort(depthCompare(uiViewDepth, 1)).map(matchingConfigPair);\n        var matchedViewConfigs = uiViewTuples.map(function (tuple) { return tuple.viewConfig; });\n        var unmatchedConfigTuples = this._viewConfigs\n            .filter(function (config) { return !inArray(matchedViewConfigs, config); })\n            .map(function (viewConfig) { return ({ uiView: undefined, viewConfig: viewConfig }); });\n        uiViewTuples.forEach(configureUIView);\n        var allTuples = uiViewTuples.concat(unmatchedConfigTuples);\n        this._listeners.forEach(function (cb) { return cb(allTuples); });\n        trace.traceViewSync(allTuples);\n    };\n    /**\n     * Registers a `ui-view` component\n     *\n     * When a `ui-view` component is created, it uses this method to register itself.\n     * After registration the [[sync]] method is used to ensure all `ui-view` are configured with the proper [[ViewConfig]].\n     *\n     * Note: the `ui-view` component uses the `ViewConfig` to determine what view should be loaded inside the `ui-view`,\n     * and what the view's state context is.\n     *\n     * Note: There is no corresponding `deregisterUIView`.\n     *       A `ui-view` should hang on to the return value of `registerUIView` and invoke it to deregister itself.\n     *\n     * @param uiView The metadata for a UIView\n     * @return a de-registration function used when the view is destroyed.\n     */\n    ViewService.prototype.registerUIView = function (uiView) {\n        trace.traceViewServiceUIViewEvent('-> Registering', uiView);\n        var uiViews = this._uiViews;\n        var fqnAndTypeMatches = function (uiv) { return uiv.fqn === uiView.fqn && uiv.$type === uiView.$type; };\n        if (uiViews.filter(fqnAndTypeMatches).length)\n            trace.traceViewServiceUIViewEvent('!!!! duplicate uiView named:', uiView);\n        uiViews.push(uiView);\n        this.sync();\n        return function () {\n            var idx = uiViews.indexOf(uiView);\n            if (idx === -1) {\n                trace.traceViewServiceUIViewEvent('Tried removing non-registered uiView', uiView);\n                return;\n            }\n            trace.traceViewServiceUIViewEvent('<- Deregistering', uiView);\n            removeFrom(uiViews)(uiView);\n        };\n    };\n    /**\n     * Returns the list of views currently available on the page, by fully-qualified name.\n     *\n     * @return {Array} Returns an array of fully-qualified view names.\n     */\n    ViewService.prototype.available = function () {\n        return this._uiViews.map(prop('fqn'));\n    };\n    /**\n     * Returns the list of views on the page containing loaded content.\n     *\n     * @return {Array} Returns an array of fully-qualified view names.\n     */\n    ViewService.prototype.active = function () {\n        return this._uiViews.filter(prop('$config')).map(prop('name'));\n    };\n    /**\n     * Given a ui-view and a ViewConfig, determines if they \"match\".\n     *\n     * A ui-view has a fully qualified name (fqn) and a context object.  The fqn is built from its overall location in\n     * the DOM, describing its nesting relationship to any parent ui-view tags it is nested inside of.\n     *\n     * A ViewConfig has a target ui-view name and a context anchor.  The ui-view name can be a simple name, or\n     * can be a segmented ui-view path, describing a portion of a ui-view fqn.\n     *\n     * In order for a ui-view to match ViewConfig, ui-view's $type must match the ViewConfig's $type\n     *\n     * If the ViewConfig's target ui-view name is a simple name (no dots), then a ui-view matches if:\n     * - the ui-view's name matches the ViewConfig's target name\n     * - the ui-view's context matches the ViewConfig's anchor\n     *\n     * If the ViewConfig's target ui-view name is a segmented name (with dots), then a ui-view matches if:\n     * - There exists a parent ui-view where:\n     *    - the parent ui-view's name matches the first segment (index 0) of the ViewConfig's target name\n     *    - the parent ui-view's context matches the ViewConfig's anchor\n     * - And the remaining segments (index 1..n) of the ViewConfig's target name match the tail of the ui-view's fqn\n     *\n     * Example:\n     *\n     * DOM:\n     * <ui-view>                        <!-- created in the root context (name: \"\") -->\n     *   <ui-view name=\"foo\">                <!-- created in the context named: \"A\"      -->\n     *     <ui-view>                    <!-- created in the context named: \"A.B\"    -->\n     *       <ui-view name=\"bar\">            <!-- created in the context named: \"A.B.C\"  -->\n     *       </ui-view>\n     *     </ui-view>\n     *   </ui-view>\n     * </ui-view>\n     *\n     * uiViews: [\n     *  { fqn: \"$default\",                  creationContext: { name: \"\" } },\n     *  { fqn: \"$default.foo\",              creationContext: { name: \"A\" } },\n     *  { fqn: \"$default.foo.$default\",     creationContext: { name: \"A.B\" } }\n     *  { fqn: \"$default.foo.$default.bar\", creationContext: { name: \"A.B.C\" } }\n     * ]\n     *\n     * These four view configs all match the ui-view with the fqn: \"$default.foo.$default.bar\":\n     *\n     * - ViewConfig1: { uiViewName: \"bar\",                       uiViewContextAnchor: \"A.B.C\" }\n     * - ViewConfig2: { uiViewName: \"$default.bar\",              uiViewContextAnchor: \"A.B\" }\n     * - ViewConfig3: { uiViewName: \"foo.$default.bar\",          uiViewContextAnchor: \"A\" }\n     * - ViewConfig4: { uiViewName: \"$default.foo.$default.bar\", uiViewContextAnchor: \"\" }\n     *\n     * Using ViewConfig3 as an example, it matches the ui-view with fqn \"$default.foo.$default.bar\" because:\n     * - The ViewConfig's segmented target name is: [ \"foo\", \"$default\", \"bar\" ]\n     * - There exists a parent ui-view (which has fqn: \"$default.foo\") where:\n     *    - the parent ui-view's name \"foo\" matches the first segment \"foo\" of the ViewConfig's target name\n     *    - the parent ui-view's context \"A\" matches the ViewConfig's anchor context \"A\"\n     * - And the remaining segments [ \"$default\", \"bar\" ].join(\".\"_ of the ViewConfig's target name match\n     *   the tail of the ui-view's fqn \"default.bar\"\n     *\n     * @internal\n     */\n    ViewService.matches = function (uiViewsByFqn, uiView) { return function (viewConfig) {\n        // Don't supply an ng1 ui-view with an ng2 ViewConfig, etc\n        if (uiView.$type !== viewConfig.viewDecl.$type)\n            return false;\n        // Split names apart from both viewConfig and uiView into segments\n        var vc = viewConfig.viewDecl;\n        var vcSegments = vc.$uiViewName.split('.');\n        var uivSegments = uiView.fqn.split('.');\n        // Check if the tails of the segment arrays match. ex, these arrays' tails match:\n        // vc: [\"foo\", \"bar\"], uiv fqn: [\"$default\", \"foo\", \"bar\"]\n        if (!equals(vcSegments, uivSegments.slice(0 - vcSegments.length)))\n            return false;\n        // Now check if the fqn ending at the first segment of the viewConfig matches the context:\n        // [\"$default\", \"foo\"].join(\".\") == \"$default.foo\", does the ui-view $default.foo context match?\n        var negOffset = 1 - vcSegments.length || undefined;\n        var fqnToFirstSegment = uivSegments.slice(0, negOffset).join('.');\n        var uiViewContext = uiViewsByFqn[fqnToFirstSegment].creationContext;\n        return vc.$uiViewContextAnchor === (uiViewContext && uiViewContext.name);\n    }; };\n    return ViewService;\n}());\nexport { ViewService };\n","/**\n * @license\n * Lodash <https://lodash.com/>\n * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>\n * Released under MIT license <https://lodash.com/license>\n * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>\n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n  /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n  var undefined;\n\n  /** Used as the semantic version number. */\n  var VERSION = '4.17.21';\n\n  /** Used as the size to enable large array optimizations. */\n  var LARGE_ARRAY_SIZE = 200;\n\n  /** Error message constants. */\n  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n      FUNC_ERROR_TEXT = 'Expected a function',\n      INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n  /** Used to stand-in for `undefined` hash values. */\n  var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n  /** Used as the maximum memoize cache size. */\n  var MAX_MEMOIZE_SIZE = 500;\n\n  /** Used as the internal argument placeholder. */\n  var PLACEHOLDER = '__lodash_placeholder__';\n\n  /** Used to compose bitmasks for cloning. */\n  var CLONE_DEEP_FLAG = 1,\n      CLONE_FLAT_FLAG = 2,\n      CLONE_SYMBOLS_FLAG = 4;\n\n  /** Used to compose bitmasks for value comparisons. */\n  var COMPARE_PARTIAL_FLAG = 1,\n      COMPARE_UNORDERED_FLAG = 2;\n\n  /** Used to compose bitmasks for function metadata. */\n  var WRAP_BIND_FLAG = 1,\n      WRAP_BIND_KEY_FLAG = 2,\n      WRAP_CURRY_BOUND_FLAG = 4,\n      WRAP_CURRY_FLAG = 8,\n      WRAP_CURRY_RIGHT_FLAG = 16,\n      WRAP_PARTIAL_FLAG = 32,\n      WRAP_PARTIAL_RIGHT_FLAG = 64,\n      WRAP_ARY_FLAG = 128,\n      WRAP_REARG_FLAG = 256,\n      WRAP_FLIP_FLAG = 512;\n\n  /** Used as default options for `_.truncate`. */\n  var DEFAULT_TRUNC_LENGTH = 30,\n      DEFAULT_TRUNC_OMISSION = '...';\n\n  /** Used to detect hot functions by number of calls within a span of milliseconds. */\n  var HOT_COUNT = 800,\n      HOT_SPAN = 16;\n\n  /** Used to indicate the type of lazy iteratees. */\n  var LAZY_FILTER_FLAG = 1,\n      LAZY_MAP_FLAG = 2,\n      LAZY_WHILE_FLAG = 3;\n\n  /** Used as references for various `Number` constants. */\n  var INFINITY = 1 / 0,\n      MAX_SAFE_INTEGER = 9007199254740991,\n      MAX_INTEGER = 1.7976931348623157e+308,\n      NAN = 0 / 0;\n\n  /** Used as references for the maximum length and index of an array. */\n  var MAX_ARRAY_LENGTH = 4294967295,\n      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n  /** Used to associate wrap methods with their bit flags. */\n  var wrapFlags = [\n    ['ary', WRAP_ARY_FLAG],\n    ['bind', WRAP_BIND_FLAG],\n    ['bindKey', WRAP_BIND_KEY_FLAG],\n    ['curry', WRAP_CURRY_FLAG],\n    ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n    ['flip', WRAP_FLIP_FLAG],\n    ['partial', WRAP_PARTIAL_FLAG],\n    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n    ['rearg', WRAP_REARG_FLAG]\n  ];\n\n  /** `Object#toString` result references. */\n  var argsTag = '[object Arguments]',\n      arrayTag = '[object Array]',\n      asyncTag = '[object AsyncFunction]',\n      boolTag = '[object Boolean]',\n      dateTag = '[object Date]',\n      domExcTag = '[object DOMException]',\n      errorTag = '[object Error]',\n      funcTag = '[object Function]',\n      genTag = '[object GeneratorFunction]',\n      mapTag = '[object Map]',\n      numberTag = '[object Number]',\n      nullTag = '[object Null]',\n      objectTag = '[object Object]',\n      promiseTag = '[object Promise]',\n      proxyTag = '[object Proxy]',\n      regexpTag = '[object RegExp]',\n      setTag = '[object Set]',\n      stringTag = '[object String]',\n      symbolTag = '[object Symbol]',\n      undefinedTag = '[object Undefined]',\n      weakMapTag = '[object WeakMap]',\n      weakSetTag = '[object WeakSet]';\n\n  var arrayBufferTag = '[object ArrayBuffer]',\n      dataViewTag = '[object DataView]',\n      float32Tag = '[object Float32Array]',\n      float64Tag = '[object Float64Array]',\n      int8Tag = '[object Int8Array]',\n      int16Tag = '[object Int16Array]',\n      int32Tag = '[object Int32Array]',\n      uint8Tag = '[object Uint8Array]',\n      uint8ClampedTag = '[object Uint8ClampedArray]',\n      uint16Tag = '[object Uint16Array]',\n      uint32Tag = '[object Uint32Array]';\n\n  /** Used to match empty string literals in compiled template source. */\n  var reEmptyStringLeading = /\\b__p \\+= '';/g,\n      reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n      reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n  /** Used to match HTML entities and HTML characters. */\n  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n      reUnescapedHtml = /[&<>\"']/g,\n      reHasEscapedHtml = RegExp(reEscapedHtml.source),\n      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n  /** Used to match template delimiters. */\n  var reEscape = /<%-([\\s\\S]+?)%>/g,\n      reEvaluate = /<%([\\s\\S]+?)%>/g,\n      reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n  /** Used to match property names within property paths. */\n  var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n      reIsPlainProp = /^\\w*$/,\n      rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n  /**\n   * Used to match `RegExp`\n   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n   */\n  var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n      reHasRegExpChar = RegExp(reRegExpChar.source);\n\n  /** Used to match leading whitespace. */\n  var reTrimStart = /^\\s+/;\n\n  /** Used to match a single whitespace character. */\n  var reWhitespace = /\\s/;\n\n  /** Used to match wrap detail comments. */\n  var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n      reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n      reSplitDetails = /,? & /;\n\n  /** Used to match words composed of alphanumeric characters. */\n  var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n  /**\n   * Used to validate the `validate` option in `_.template` variable.\n   *\n   * Forbids characters which could potentially change the meaning of the function argument definition:\n   * - \"(),\" (modification of function parameters)\n   * - \"=\" (default value)\n   * - \"[]{}\" (destructuring of function parameters)\n   * - \"/\" (beginning of a comment)\n   * - whitespace\n   */\n  var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n  /** Used to match backslashes in property paths. */\n  var reEscapeChar = /\\\\(\\\\)?/g;\n\n  /**\n   * Used to match\n   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n   */\n  var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n  /** Used to match `RegExp` flags from their coerced string values. */\n  var reFlags = /\\w*$/;\n\n  /** Used to detect bad signed hexadecimal string values. */\n  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n  /** Used to detect binary string values. */\n  var reIsBinary = /^0b[01]+$/i;\n\n  /** Used to detect host constructors (Safari). */\n  var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n  /** Used to detect octal string values. */\n  var reIsOctal = /^0o[0-7]+$/i;\n\n  /** Used to detect unsigned integer values. */\n  var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n  /** Used to match Latin Unicode letters (excluding mathematical operators). */\n  var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n  /** Used to ensure capturing order of template delimiters. */\n  var reNoMatch = /($^)/;\n\n  /** Used to match unescaped characters in compiled string literals. */\n  var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n  /** Used to compose unicode character classes. */\n  var rsAstralRange = '\\\\ud800-\\\\udfff',\n      rsComboMarksRange = '\\\\u0300-\\\\u036f',\n      reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n      rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n      rsDingbatRange = '\\\\u2700-\\\\u27bf',\n      rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n      rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n      rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n      rsPunctuationRange = '\\\\u2000-\\\\u206f',\n      rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n      rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n      rsVarRange = '\\\\ufe0e\\\\ufe0f',\n      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n  /** Used to compose unicode capture groups. */\n  var rsApos = \"['\\u2019]\",\n      rsAstral = '[' + rsAstralRange + ']',\n      rsBreak = '[' + rsBreakRange + ']',\n      rsCombo = '[' + rsComboRange + ']',\n      rsDigits = '\\\\d+',\n      rsDingbat = '[' + rsDingbatRange + ']',\n      rsLower = '[' + rsLowerRange + ']',\n      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n      rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n      rsNonAstral = '[^' + rsAstralRange + ']',\n      rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n      rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n      rsUpper = '[' + rsUpperRange + ']',\n      rsZWJ = '\\\\u200d';\n\n  /** Used to compose unicode regexes. */\n  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n      reOptMod = rsModifier + '?',\n      rsOptVar = '[' + rsVarRange + ']?',\n      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n      rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n      rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n      rsSeq = rsOptVar + reOptMod + rsOptJoin,\n      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n  /** Used to match apostrophes. */\n  var reApos = RegExp(rsApos, 'g');\n\n  /**\n   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n   */\n  var reComboMark = RegExp(rsCombo, 'g');\n\n  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n  /** Used to match complex or compound words. */\n  var reUnicodeWord = RegExp([\n    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n    rsUpper + '+' + rsOptContrUpper,\n    rsOrdUpper,\n    rsOrdLower,\n    rsDigits,\n    rsEmoji\n  ].join('|'), 'g');\n\n  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');\n\n  /** Used to detect strings that need a more robust regexp to match words. */\n  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n  /** Used to assign default `context` object properties. */\n  var contextProps = [\n    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n  ];\n\n  /** Used to make template sourceURLs easier to identify. */\n  var templateCounter = -1;\n\n  /** Used to identify `toStringTag` values of typed arrays. */\n  var typedArrayTags = {};\n  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n  typedArrayTags[uint32Tag] = true;\n  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n  typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n  typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n  typedArrayTags[setTag] = typedArrayTags[stringTag] =\n  typedArrayTags[weakMapTag] = false;\n\n  /** Used to identify `toStringTag` values supported by `_.clone`. */\n  var cloneableTags = {};\n  cloneableTags[argsTag] = cloneableTags[arrayTag] =\n  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n  cloneableTags[boolTag] = cloneableTags[dateTag] =\n  cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n  cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n  cloneableTags[int32Tag] = cloneableTags[mapTag] =\n  cloneableTags[numberTag] = cloneableTags[objectTag] =\n  cloneableTags[regexpTag] = cloneableTags[setTag] =\n  cloneableTags[stringTag] = cloneableTags[symbolTag] =\n  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n  cloneableTags[errorTag] = cloneableTags[funcTag] =\n  cloneableTags[weakMapTag] = false;\n\n  /** Used to map Latin Unicode letters to basic Latin letters. */\n  var deburredLetters = {\n    // Latin-1 Supplement block.\n    '\\xc0': 'A',  '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n    '\\xe0': 'a',  '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n    '\\xc7': 'C',  '\\xe7': 'c',\n    '\\xd0': 'D',  '\\xf0': 'd',\n    '\\xc8': 'E',  '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n    '\\xe8': 'e',  '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n    '\\xcc': 'I',  '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n    '\\xec': 'i',  '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n    '\\xd1': 'N',  '\\xf1': 'n',\n    '\\xd2': 'O',  '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n    '\\xf2': 'o',  '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n    '\\xd9': 'U',  '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n    '\\xf9': 'u',  '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n    '\\xdd': 'Y',  '\\xfd': 'y', '\\xff': 'y',\n    '\\xc6': 'Ae', '\\xe6': 'ae',\n    '\\xde': 'Th', '\\xfe': 'th',\n    '\\xdf': 'ss',\n    // Latin Extended-A block.\n    '\\u0100': 'A',  '\\u0102': 'A', '\\u0104': 'A',\n    '\\u0101': 'a',  '\\u0103': 'a', '\\u0105': 'a',\n    '\\u0106': 'C',  '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n    '\\u0107': 'c',  '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n    '\\u010e': 'D',  '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n    '\\u0112': 'E',  '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n    '\\u0113': 'e',  '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n    '\\u011c': 'G',  '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n    '\\u011d': 'g',  '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n    '\\u0124': 'H',  '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n    '\\u0128': 'I',  '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n    '\\u0129': 'i',  '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n    '\\u0134': 'J',  '\\u0135': 'j',\n    '\\u0136': 'K',  '\\u0137': 'k', '\\u0138': 'k',\n    '\\u0139': 'L',  '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n    '\\u013a': 'l',  '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n    '\\u0143': 'N',  '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n    '\\u0144': 'n',  '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n    '\\u014c': 'O',  '\\u014e': 'O', '\\u0150': 'O',\n    '\\u014d': 'o',  '\\u014f': 'o', '\\u0151': 'o',\n    '\\u0154': 'R',  '\\u0156': 'R', '\\u0158': 'R',\n    '\\u0155': 'r',  '\\u0157': 'r', '\\u0159': 'r',\n    '\\u015a': 'S',  '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n    '\\u015b': 's',  '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n    '\\u0162': 'T',  '\\u0164': 'T', '\\u0166': 'T',\n    '\\u0163': 't',  '\\u0165': 't', '\\u0167': 't',\n    '\\u0168': 'U',  '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n    '\\u0169': 'u',  '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n    '\\u0174': 'W',  '\\u0175': 'w',\n    '\\u0176': 'Y',  '\\u0177': 'y', '\\u0178': 'Y',\n    '\\u0179': 'Z',  '\\u017b': 'Z', '\\u017d': 'Z',\n    '\\u017a': 'z',  '\\u017c': 'z', '\\u017e': 'z',\n    '\\u0132': 'IJ', '\\u0133': 'ij',\n    '\\u0152': 'Oe', '\\u0153': 'oe',\n    '\\u0149': \"'n\", '\\u017f': 's'\n  };\n\n  /** Used to map characters to HTML entities. */\n  var htmlEscapes = {\n    '&': '&amp;',\n    '<': '&lt;',\n    '>': '&gt;',\n    '\"': '&quot;',\n    \"'\": '&#39;'\n  };\n\n  /** Used to map HTML entities to characters. */\n  var htmlUnescapes = {\n    '&amp;': '&',\n    '&lt;': '<',\n    '&gt;': '>',\n    '&quot;': '\"',\n    '&#39;': \"'\"\n  };\n\n  /** Used to escape characters for inclusion in compiled string literals. */\n  var stringEscapes = {\n    '\\\\': '\\\\',\n    \"'\": \"'\",\n    '\\n': 'n',\n    '\\r': 'r',\n    '\\u2028': 'u2028',\n    '\\u2029': 'u2029'\n  };\n\n  /** Built-in method references without a dependency on `root`. */\n  var freeParseFloat = parseFloat,\n      freeParseInt = parseInt;\n\n  /** Detect free variable `global` from Node.js. */\n  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n  /** Detect free variable `self`. */\n  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n  /** Used as a reference to the global object. */\n  var root = freeGlobal || freeSelf || Function('return this')();\n\n  /** Detect free variable `exports`. */\n  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n  /** Detect free variable `module`. */\n  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n  /** Detect the popular CommonJS extension `module.exports`. */\n  var moduleExports = freeModule && freeModule.exports === freeExports;\n\n  /** Detect free variable `process` from Node.js. */\n  var freeProcess = moduleExports && freeGlobal.process;\n\n  /** Used to access faster Node.js helpers. */\n  var nodeUtil = (function() {\n    try {\n      // Use `util.types` for Node.js 10+.\n      var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n      if (types) {\n        return types;\n      }\n\n      // Legacy `process.binding('util')` for Node.js < 10.\n      return freeProcess && freeProcess.binding && freeProcess.binding('util');\n    } catch (e) {}\n  }());\n\n  /* Node.js helper references. */\n  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n      nodeIsDate = nodeUtil && nodeUtil.isDate,\n      nodeIsMap = nodeUtil && nodeUtil.isMap,\n      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n      nodeIsSet = nodeUtil && nodeUtil.isSet,\n      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n  /*--------------------------------------------------------------------------*/\n\n  /**\n   * A faster alternative to `Function#apply`, this function invokes `func`\n   * with the `this` binding of `thisArg` and the arguments of `args`.\n   *\n   * @private\n   * @param {Function} func The function to invoke.\n   * @param {*} thisArg The `this` binding of `func`.\n   * @param {Array} args The arguments to invoke `func` with.\n   * @returns {*} Returns the result of `func`.\n   */\n  function apply(func, thisArg, args) {\n    switch (args.length) {\n      case 0: return func.call(thisArg);\n      case 1: return func.call(thisArg, args[0]);\n      case 2: return func.call(thisArg, args[0], args[1]);\n      case 3: return func.call(thisArg, args[0], args[1], args[2]);\n    }\n    return func.apply(thisArg, args);\n  }\n\n  /**\n   * A specialized version of `baseAggregator` for arrays.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} setter The function to set `accumulator` values.\n   * @param {Function} iteratee The iteratee to transform keys.\n   * @param {Object} accumulator The initial aggregated object.\n   * @returns {Function} Returns `accumulator`.\n   */\n  function arrayAggregator(array, setter, iteratee, accumulator) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      var value = array[index];\n      setter(accumulator, value, iteratee(value), array);\n    }\n    return accumulator;\n  }\n\n  /**\n   * A specialized version of `_.forEach` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns `array`.\n   */\n  function arrayEach(array, iteratee) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (iteratee(array[index], index, array) === false) {\n        break;\n      }\n    }\n    return array;\n  }\n\n  /**\n   * A specialized version of `_.forEachRight` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns `array`.\n   */\n  function arrayEachRight(array, iteratee) {\n    var length = array == null ? 0 : array.length;\n\n    while (length--) {\n      if (iteratee(array[length], length, array) === false) {\n        break;\n      }\n    }\n    return array;\n  }\n\n  /**\n   * A specialized version of `_.every` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {boolean} Returns `true` if all elements pass the predicate check,\n   *  else `false`.\n   */\n  function arrayEvery(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (!predicate(array[index], index, array)) {\n        return false;\n      }\n    }\n    return true;\n  }\n\n  /**\n   * A specialized version of `_.filter` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {Array} Returns the new filtered array.\n   */\n  function arrayFilter(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length,\n        resIndex = 0,\n        result = [];\n\n    while (++index < length) {\n      var value = array[index];\n      if (predicate(value, index, array)) {\n        result[resIndex++] = value;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * A specialized version of `_.includes` for arrays without support for\n   * specifying an index to search from.\n   *\n   * @private\n   * @param {Array} [array] The array to inspect.\n   * @param {*} target The value to search for.\n   * @returns {boolean} Returns `true` if `target` is found, else `false`.\n   */\n  function arrayIncludes(array, value) {\n    var length = array == null ? 0 : array.length;\n    return !!length && baseIndexOf(array, value, 0) > -1;\n  }\n\n  /**\n   * This function is like `arrayIncludes` except that it accepts a comparator.\n   *\n   * @private\n   * @param {Array} [array] The array to inspect.\n   * @param {*} target The value to search for.\n   * @param {Function} comparator The comparator invoked per element.\n   * @returns {boolean} Returns `true` if `target` is found, else `false`.\n   */\n  function arrayIncludesWith(array, value, comparator) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (comparator(value, array[index])) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * A specialized version of `_.map` for arrays without support for iteratee\n   * shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns the new mapped array.\n   */\n  function arrayMap(array, iteratee) {\n    var index = -1,\n        length = array == null ? 0 : array.length,\n        result = Array(length);\n\n    while (++index < length) {\n      result[index] = iteratee(array[index], index, array);\n    }\n    return result;\n  }\n\n  /**\n   * Appends the elements of `values` to `array`.\n   *\n   * @private\n   * @param {Array} array The array to modify.\n   * @param {Array} values The values to append.\n   * @returns {Array} Returns `array`.\n   */\n  function arrayPush(array, values) {\n    var index = -1,\n        length = values.length,\n        offset = array.length;\n\n    while (++index < length) {\n      array[offset + index] = values[index];\n    }\n    return array;\n  }\n\n  /**\n   * A specialized version of `_.reduce` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} [accumulator] The initial value.\n   * @param {boolean} [initAccum] Specify using the first element of `array` as\n   *  the initial value.\n   * @returns {*} Returns the accumulated value.\n   */\n  function arrayReduce(array, iteratee, accumulator, initAccum) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    if (initAccum && length) {\n      accumulator = array[++index];\n    }\n    while (++index < length) {\n      accumulator = iteratee(accumulator, array[index], index, array);\n    }\n    return accumulator;\n  }\n\n  /**\n   * A specialized version of `_.reduceRight` for arrays without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} [accumulator] The initial value.\n   * @param {boolean} [initAccum] Specify using the last element of `array` as\n   *  the initial value.\n   * @returns {*} Returns the accumulated value.\n   */\n  function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n    var length = array == null ? 0 : array.length;\n    if (initAccum && length) {\n      accumulator = array[--length];\n    }\n    while (length--) {\n      accumulator = iteratee(accumulator, array[length], length, array);\n    }\n    return accumulator;\n  }\n\n  /**\n   * A specialized version of `_.some` for arrays without support for iteratee\n   * shorthands.\n   *\n   * @private\n   * @param {Array} [array] The array to iterate over.\n   * @param {Function} predicate The function invoked per iteration.\n   * @returns {boolean} Returns `true` if any element passes the predicate check,\n   *  else `false`.\n   */\n  function arraySome(array, predicate) {\n    var index = -1,\n        length = array == null ? 0 : array.length;\n\n    while (++index < length) {\n      if (predicate(array[index], index, array)) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Gets the size of an ASCII `string`.\n   *\n   * @private\n   * @param {string} string The string inspect.\n   * @returns {number} Returns the string size.\n   */\n  var asciiSize = baseProperty('length');\n\n  /**\n   * Converts an ASCII `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function asciiToArray(string) {\n    return string.split('');\n  }\n\n  /**\n   * Splits an ASCII `string` into an array of its words.\n   *\n   * @private\n   * @param {string} The string to inspect.\n   * @returns {Array} Returns the words of `string`.\n   */\n  function asciiWords(string) {\n    return string.match(reAsciiWord) || [];\n  }\n\n  /**\n   * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n   * without support for iteratee shorthands, which iterates over `collection`\n   * using `eachFunc`.\n   *\n   * @private\n   * @param {Array|Object} collection The collection to inspect.\n   * @param {Function} predicate The function invoked per iteration.\n   * @param {Function} eachFunc The function to iterate over `collection`.\n   * @returns {*} Returns the found element or its key, else `undefined`.\n   */\n  function baseFindKey(collection, predicate, eachFunc) {\n    var result;\n    eachFunc(collection, function(value, key, collection) {\n      if (predicate(value, key, collection)) {\n        result = key;\n        return false;\n      }\n    });\n    return result;\n  }\n\n  /**\n   * The base implementation of `_.findIndex` and `_.findLastIndex` without\n   * support for iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {Function} predicate The function invoked per iteration.\n   * @param {number} fromIndex The index to search from.\n   * @param {boolean} [fromRight] Specify iterating from right to left.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function baseFindIndex(array, predicate, fromIndex, fromRight) {\n    var length = array.length,\n        index = fromIndex + (fromRight ? 1 : -1);\n\n    while ((fromRight ? index-- : ++index < length)) {\n      if (predicate(array[index], index, array)) {\n        return index;\n      }\n    }\n    return -1;\n  }\n\n  /**\n   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function baseIndexOf(array, value, fromIndex) {\n    return value === value\n      ? strictIndexOf(array, value, fromIndex)\n      : baseFindIndex(array, baseIsNaN, fromIndex);\n  }\n\n  /**\n   * This function is like `baseIndexOf` except that it accepts a comparator.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @param {Function} comparator The comparator invoked per element.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function baseIndexOfWith(array, value, fromIndex, comparator) {\n    var index = fromIndex - 1,\n        length = array.length;\n\n    while (++index < length) {\n      if (comparator(array[index], value)) {\n        return index;\n      }\n    }\n    return -1;\n  }\n\n  /**\n   * The base implementation of `_.isNaN` without support for number objects.\n   *\n   * @private\n   * @param {*} value The value to check.\n   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n   */\n  function baseIsNaN(value) {\n    return value !== value;\n  }\n\n  /**\n   * The base implementation of `_.mean` and `_.meanBy` without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {number} Returns the mean.\n   */\n  function baseMean(array, iteratee) {\n    var length = array == null ? 0 : array.length;\n    return length ? (baseSum(array, iteratee) / length) : NAN;\n  }\n\n  /**\n   * The base implementation of `_.property` without support for deep paths.\n   *\n   * @private\n   * @param {string} key The key of the property to get.\n   * @returns {Function} Returns the new accessor function.\n   */\n  function baseProperty(key) {\n    return function(object) {\n      return object == null ? undefined : object[key];\n    };\n  }\n\n  /**\n   * The base implementation of `_.propertyOf` without support for deep paths.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @returns {Function} Returns the new accessor function.\n   */\n  function basePropertyOf(object) {\n    return function(key) {\n      return object == null ? undefined : object[key];\n    };\n  }\n\n  /**\n   * The base implementation of `_.reduce` and `_.reduceRight`, without support\n   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n   *\n   * @private\n   * @param {Array|Object} collection The collection to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @param {*} accumulator The initial value.\n   * @param {boolean} initAccum Specify using the first or last element of\n   *  `collection` as the initial value.\n   * @param {Function} eachFunc The function to iterate over `collection`.\n   * @returns {*} Returns the accumulated value.\n   */\n  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n    eachFunc(collection, function(value, index, collection) {\n      accumulator = initAccum\n        ? (initAccum = false, value)\n        : iteratee(accumulator, value, index, collection);\n    });\n    return accumulator;\n  }\n\n  /**\n   * The base implementation of `_.sortBy` which uses `comparer` to define the\n   * sort order of `array` and replaces criteria objects with their corresponding\n   * values.\n   *\n   * @private\n   * @param {Array} array The array to sort.\n   * @param {Function} comparer The function to define sort order.\n   * @returns {Array} Returns `array`.\n   */\n  function baseSortBy(array, comparer) {\n    var length = array.length;\n\n    array.sort(comparer);\n    while (length--) {\n      array[length] = array[length].value;\n    }\n    return array;\n  }\n\n  /**\n   * The base implementation of `_.sum` and `_.sumBy` without support for\n   * iteratee shorthands.\n   *\n   * @private\n   * @param {Array} array The array to iterate over.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {number} Returns the sum.\n   */\n  function baseSum(array, iteratee) {\n    var result,\n        index = -1,\n        length = array.length;\n\n    while (++index < length) {\n      var current = iteratee(array[index]);\n      if (current !== undefined) {\n        result = result === undefined ? current : (result + current);\n      }\n    }\n    return result;\n  }\n\n  /**\n   * The base implementation of `_.times` without support for iteratee shorthands\n   * or max array length checks.\n   *\n   * @private\n   * @param {number} n The number of times to invoke `iteratee`.\n   * @param {Function} iteratee The function invoked per iteration.\n   * @returns {Array} Returns the array of results.\n   */\n  function baseTimes(n, iteratee) {\n    var index = -1,\n        result = Array(n);\n\n    while (++index < n) {\n      result[index] = iteratee(index);\n    }\n    return result;\n  }\n\n  /**\n   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n   * of key-value pairs for `object` corresponding to the property names of `props`.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @param {Array} props The property names to get values for.\n   * @returns {Object} Returns the key-value pairs.\n   */\n  function baseToPairs(object, props) {\n    return arrayMap(props, function(key) {\n      return [key, object[key]];\n    });\n  }\n\n  /**\n   * The base implementation of `_.trim`.\n   *\n   * @private\n   * @param {string} string The string to trim.\n   * @returns {string} Returns the trimmed string.\n   */\n  function baseTrim(string) {\n    return string\n      ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n      : string;\n  }\n\n  /**\n   * The base implementation of `_.unary` without support for storing metadata.\n   *\n   * @private\n   * @param {Function} func The function to cap arguments for.\n   * @returns {Function} Returns the new capped function.\n   */\n  function baseUnary(func) {\n    return function(value) {\n      return func(value);\n    };\n  }\n\n  /**\n   * The base implementation of `_.values` and `_.valuesIn` which creates an\n   * array of `object` property values corresponding to the property names\n   * of `props`.\n   *\n   * @private\n   * @param {Object} object The object to query.\n   * @param {Array} props The property names to get values for.\n   * @returns {Object} Returns the array of property values.\n   */\n  function baseValues(object, props) {\n    return arrayMap(props, function(key) {\n      return object[key];\n    });\n  }\n\n  /**\n   * Checks if a `cache` value for `key` exists.\n   *\n   * @private\n   * @param {Object} cache The cache to query.\n   * @param {string} key The key of the entry to check.\n   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n   */\n  function cacheHas(cache, key) {\n    return cache.has(key);\n  }\n\n  /**\n   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n   * that is not found in the character symbols.\n   *\n   * @private\n   * @param {Array} strSymbols The string symbols to inspect.\n   * @param {Array} chrSymbols The character symbols to find.\n   * @returns {number} Returns the index of the first unmatched string symbol.\n   */\n  function charsStartIndex(strSymbols, chrSymbols) {\n    var index = -1,\n        length = strSymbols.length;\n\n    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n    return index;\n  }\n\n  /**\n   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n   * that is not found in the character symbols.\n   *\n   * @private\n   * @param {Array} strSymbols The string symbols to inspect.\n   * @param {Array} chrSymbols The character symbols to find.\n   * @returns {number} Returns the index of the last unmatched string symbol.\n   */\n  function charsEndIndex(strSymbols, chrSymbols) {\n    var index = strSymbols.length;\n\n    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n    return index;\n  }\n\n  /**\n   * Gets the number of `placeholder` occurrences in `array`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} placeholder The placeholder to search for.\n   * @returns {number} Returns the placeholder count.\n   */\n  function countHolders(array, placeholder) {\n    var length = array.length,\n        result = 0;\n\n    while (length--) {\n      if (array[length] === placeholder) {\n        ++result;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n   * letters to basic Latin letters.\n   *\n   * @private\n   * @param {string} letter The matched letter to deburr.\n   * @returns {string} Returns the deburred letter.\n   */\n  var deburrLetter = basePropertyOf(deburredLetters);\n\n  /**\n   * Used by `_.escape` to convert characters to HTML entities.\n   *\n   * @private\n   * @param {string} chr The matched character to escape.\n   * @returns {string} Returns the escaped character.\n   */\n  var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n  /**\n   * Used by `_.template` to escape characters for inclusion in compiled string literals.\n   *\n   * @private\n   * @param {string} chr The matched character to escape.\n   * @returns {string} Returns the escaped character.\n   */\n  function escapeStringChar(chr) {\n    return '\\\\' + stringEscapes[chr];\n  }\n\n  /**\n   * Gets the value at `key` of `object`.\n   *\n   * @private\n   * @param {Object} [object] The object to query.\n   * @param {string} key The key of the property to get.\n   * @returns {*} Returns the property value.\n   */\n  function getValue(object, key) {\n    return object == null ? undefined : object[key];\n  }\n\n  /**\n   * Checks if `string` contains Unicode symbols.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n   */\n  function hasUnicode(string) {\n    return reHasUnicode.test(string);\n  }\n\n  /**\n   * Checks if `string` contains a word composed of Unicode symbols.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {boolean} Returns `true` if a word is found, else `false`.\n   */\n  function hasUnicodeWord(string) {\n    return reHasUnicodeWord.test(string);\n  }\n\n  /**\n   * Converts `iterator` to an array.\n   *\n   * @private\n   * @param {Object} iterator The iterator to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function iteratorToArray(iterator) {\n    var data,\n        result = [];\n\n    while (!(data = iterator.next()).done) {\n      result.push(data.value);\n    }\n    return result;\n  }\n\n  /**\n   * Converts `map` to its key-value pairs.\n   *\n   * @private\n   * @param {Object} map The map to convert.\n   * @returns {Array} Returns the key-value pairs.\n   */\n  function mapToArray(map) {\n    var index = -1,\n        result = Array(map.size);\n\n    map.forEach(function(value, key) {\n      result[++index] = [key, value];\n    });\n    return result;\n  }\n\n  /**\n   * Creates a unary function that invokes `func` with its argument transformed.\n   *\n   * @private\n   * @param {Function} func The function to wrap.\n   * @param {Function} transform The argument transform.\n   * @returns {Function} Returns the new function.\n   */\n  function overArg(func, transform) {\n    return function(arg) {\n      return func(transform(arg));\n    };\n  }\n\n  /**\n   * Replaces all `placeholder` elements in `array` with an internal placeholder\n   * and returns an array of their indexes.\n   *\n   * @private\n   * @param {Array} array The array to modify.\n   * @param {*} placeholder The placeholder to replace.\n   * @returns {Array} Returns the new array of placeholder indexes.\n   */\n  function replaceHolders(array, placeholder) {\n    var index = -1,\n        length = array.length,\n        resIndex = 0,\n        result = [];\n\n    while (++index < length) {\n      var value = array[index];\n      if (value === placeholder || value === PLACEHOLDER) {\n        array[index] = PLACEHOLDER;\n        result[resIndex++] = index;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Converts `set` to an array of its values.\n   *\n   * @private\n   * @param {Object} set The set to convert.\n   * @returns {Array} Returns the values.\n   */\n  function setToArray(set) {\n    var index = -1,\n        result = Array(set.size);\n\n    set.forEach(function(value) {\n      result[++index] = value;\n    });\n    return result;\n  }\n\n  /**\n   * Converts `set` to its value-value pairs.\n   *\n   * @private\n   * @param {Object} set The set to convert.\n   * @returns {Array} Returns the value-value pairs.\n   */\n  function setToPairs(set) {\n    var index = -1,\n        result = Array(set.size);\n\n    set.forEach(function(value) {\n      result[++index] = [value, value];\n    });\n    return result;\n  }\n\n  /**\n   * A specialized version of `_.indexOf` which performs strict equality\n   * comparisons of values, i.e. `===`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function strictIndexOf(array, value, fromIndex) {\n    var index = fromIndex - 1,\n        length = array.length;\n\n    while (++index < length) {\n      if (array[index] === value) {\n        return index;\n      }\n    }\n    return -1;\n  }\n\n  /**\n   * A specialized version of `_.lastIndexOf` which performs strict equality\n   * comparisons of values, i.e. `===`.\n   *\n   * @private\n   * @param {Array} array The array to inspect.\n   * @param {*} value The value to search for.\n   * @param {number} fromIndex The index to search from.\n   * @returns {number} Returns the index of the matched value, else `-1`.\n   */\n  function strictLastIndexOf(array, value, fromIndex) {\n    var index = fromIndex + 1;\n    while (index--) {\n      if (array[index] === value) {\n        return index;\n      }\n    }\n    return index;\n  }\n\n  /**\n   * Gets the number of symbols in `string`.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {number} Returns the string size.\n   */\n  function stringSize(string) {\n    return hasUnicode(string)\n      ? unicodeSize(string)\n      : asciiSize(string);\n  }\n\n  /**\n   * Converts `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function stringToArray(string) {\n    return hasUnicode(string)\n      ? unicodeToArray(string)\n      : asciiToArray(string);\n  }\n\n  /**\n   * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n   * character of `string`.\n   *\n   * @private\n   * @param {string} string The string to inspect.\n   * @returns {number} Returns the index of the last non-whitespace character.\n   */\n  function trimmedEndIndex(string) {\n    var index = string.length;\n\n    while (index-- && reWhitespace.test(string.charAt(index))) {}\n    return index;\n  }\n\n  /**\n   * Used by `_.unescape` to convert HTML entities to characters.\n   *\n   * @private\n   * @param {string} chr The matched character to unescape.\n   * @returns {string} Returns the unescaped character.\n   */\n  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n  /**\n   * Gets the size of a Unicode `string`.\n   *\n   * @private\n   * @param {string} string The string inspect.\n   * @returns {number} Returns the string size.\n   */\n  function unicodeSize(string) {\n    var result = reUnicode.lastIndex = 0;\n    while (reUnicode.test(string)) {\n      ++result;\n    }\n    return result;\n  }\n\n  /**\n   * Converts a Unicode `string` to an array.\n   *\n   * @private\n   * @param {string} string The string to convert.\n   * @returns {Array} Returns the converted array.\n   */\n  function unicodeToArray(string) {\n    return string.match(reUnicode) || [];\n  }\n\n  /**\n   * Splits a Unicode `string` into an array of its words.\n   *\n   * @private\n   * @param {string} The string to inspect.\n   * @returns {Array} Returns the words of `string`.\n   */\n  function unicodeWords(string) {\n    return string.match(reUnicodeWord) || [];\n  }\n\n  /*--------------------------------------------------------------------------*/\n\n  /**\n   * Create a new pristine `lodash` function using the `context` object.\n   *\n   * @static\n   * @memberOf _\n   * @since 1.1.0\n   * @category Util\n   * @param {Object} [context=root] The context object.\n   * @returns {Function} Returns a new `lodash` function.\n   * @example\n   *\n   * _.mixin({ 'foo': _.constant('foo') });\n   *\n   * var lodash = _.runInContext();\n   * lodash.mixin({ 'bar': lodash.constant('bar') });\n   *\n   * _.isFunction(_.foo);\n   * // => true\n   * _.isFunction(_.bar);\n   * // => false\n   *\n   * lodash.isFunction(lodash.foo);\n   * // => false\n   * lodash.isFunction(lodash.bar);\n   * // => true\n   *\n   * // Create a suped-up `defer` in Node.js.\n   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n   */\n  var runInContext = (function runInContext(context) {\n    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n    /** Built-in constructor references. */\n    var Array = context.Array,\n        Date = context.Date,\n        Error = context.Error,\n        Function = context.Function,\n        Math = context.Math,\n        Object = context.Object,\n        RegExp = context.RegExp,\n        String = context.String,\n        TypeError = context.TypeError;\n\n    /** Used for built-in method references. */\n    var arrayProto = Array.prototype,\n        funcProto = Function.prototype,\n        objectProto = Object.prototype;\n\n    /** Used to detect overreaching core-js shims. */\n    var coreJsData = context['__core-js_shared__'];\n\n    /** Used to resolve the decompiled source of functions. */\n    var funcToString = funcProto.toString;\n\n    /** Used to check objects for own properties. */\n    var hasOwnProperty = objectProto.hasOwnProperty;\n\n    /** Used to generate unique IDs. */\n    var idCounter = 0;\n\n    /** Used to detect methods masquerading as native. */\n    var maskSrcKey = (function() {\n      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n      return uid ? ('Symbol(src)_1.' + uid) : '';\n    }());\n\n    /**\n     * Used to resolve the\n     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n     * of values.\n     */\n    var nativeObjectToString = objectProto.toString;\n\n    /** Used to infer the `Object` constructor. */\n    var objectCtorString = funcToString.call(Object);\n\n    /** Used to restore the original `_` reference in `_.noConflict`. */\n    var oldDash = root._;\n\n    /** Used to detect if a method is native. */\n    var reIsNative = RegExp('^' +\n      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n      .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n    );\n\n    /** Built-in value references. */\n    var Buffer = moduleExports ? context.Buffer : undefined,\n        Symbol = context.Symbol,\n        Uint8Array = context.Uint8Array,\n        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n        getPrototype = overArg(Object.getPrototypeOf, Object),\n        objectCreate = Object.create,\n        propertyIsEnumerable = objectProto.propertyIsEnumerable,\n        splice = arrayProto.splice,\n        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n        symIterator = Symbol ? Symbol.iterator : undefined,\n        symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n    var defineProperty = (function() {\n      try {\n        var func = getNative(Object, 'defineProperty');\n        func({}, '', {});\n        return func;\n      } catch (e) {}\n    }());\n\n    /** Mocked built-ins. */\n    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n        ctxNow = Date && Date.now !== root.Date.now && Date.now,\n        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n    /* Built-in method references for those with the same name as other `lodash` methods. */\n    var nativeCeil = Math.ceil,\n        nativeFloor = Math.floor,\n        nativeGetSymbols = Object.getOwnPropertySymbols,\n        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n        nativeIsFinite = context.isFinite,\n        nativeJoin = arrayProto.join,\n        nativeKeys = overArg(Object.keys, Object),\n        nativeMax = Math.max,\n        nativeMin = Math.min,\n        nativeNow = Date.now,\n        nativeParseInt = context.parseInt,\n        nativeRandom = Math.random,\n        nativeReverse = arrayProto.reverse;\n\n    /* Built-in method references that are verified to be native. */\n    var DataView = getNative(context, 'DataView'),\n        Map = getNative(context, 'Map'),\n        Promise = getNative(context, 'Promise'),\n        Set = getNative(context, 'Set'),\n        WeakMap = getNative(context, 'WeakMap'),\n        nativeCreate = getNative(Object, 'create');\n\n    /** Used to store function metadata. */\n    var metaMap = WeakMap && new WeakMap;\n\n    /** Used to lookup unminified function names. */\n    var realNames = {};\n\n    /** Used to detect maps, sets, and weakmaps. */\n    var dataViewCtorString = toSource(DataView),\n        mapCtorString = toSource(Map),\n        promiseCtorString = toSource(Promise),\n        setCtorString = toSource(Set),\n        weakMapCtorString = toSource(WeakMap);\n\n    /** Used to convert symbols to primitives and strings. */\n    var symbolProto = Symbol ? Symbol.prototype : undefined,\n        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n        symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a `lodash` object which wraps `value` to enable implicit method\n     * chain sequences. Methods that operate on and return arrays, collections,\n     * and functions can be chained together. Methods that retrieve a single value\n     * or may return a primitive value will automatically end the chain sequence\n     * and return the unwrapped value. Otherwise, the value must be unwrapped\n     * with `_#value`.\n     *\n     * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n     * enabled using `_.chain`.\n     *\n     * The execution of chained methods is lazy, that is, it's deferred until\n     * `_#value` is implicitly or explicitly called.\n     *\n     * Lazy evaluation allows several methods to support shortcut fusion.\n     * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n     * the creation of intermediate arrays and can greatly reduce the number of\n     * iteratee executions. Sections of a chain sequence qualify for shortcut\n     * fusion if the section is applied to an array and iteratees accept only\n     * one argument. The heuristic for whether a section qualifies for shortcut\n     * fusion is subject to change.\n     *\n     * Chaining is supported in custom builds as long as the `_#value` method is\n     * directly or indirectly included in the build.\n     *\n     * In addition to lodash methods, wrappers have `Array` and `String` methods.\n     *\n     * The wrapper `Array` methods are:\n     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n     *\n     * The wrapper `String` methods are:\n     * `replace` and `split`\n     *\n     * The wrapper methods that support shortcut fusion are:\n     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n     *\n     * The chainable wrapper methods are:\n     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n     * `zipObject`, `zipObjectDeep`, and `zipWith`\n     *\n     * The wrapper methods that are **not** chainable by default are:\n     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n     * `upperFirst`, `value`, and `words`\n     *\n     * @name _\n     * @constructor\n     * @category Seq\n     * @param {*} value The value to wrap in a `lodash` instance.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var wrapped = _([1, 2, 3]);\n     *\n     * // Returns an unwrapped value.\n     * wrapped.reduce(_.add);\n     * // => 6\n     *\n     * // Returns a wrapped value.\n     * var squares = wrapped.map(square);\n     *\n     * _.isArray(squares);\n     * // => false\n     *\n     * _.isArray(squares.value());\n     * // => true\n     */\n    function lodash(value) {\n      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n        if (value instanceof LodashWrapper) {\n          return value;\n        }\n        if (hasOwnProperty.call(value, '__wrapped__')) {\n          return wrapperClone(value);\n        }\n      }\n      return new LodashWrapper(value);\n    }\n\n    /**\n     * The base implementation of `_.create` without support for assigning\n     * properties to the created object.\n     *\n     * @private\n     * @param {Object} proto The object to inherit from.\n     * @returns {Object} Returns the new object.\n     */\n    var baseCreate = (function() {\n      function object() {}\n      return function(proto) {\n        if (!isObject(proto)) {\n          return {};\n        }\n        if (objectCreate) {\n          return objectCreate(proto);\n        }\n        object.prototype = proto;\n        var result = new object;\n        object.prototype = undefined;\n        return result;\n      };\n    }());\n\n    /**\n     * The function whose prototype chain sequence wrappers inherit from.\n     *\n     * @private\n     */\n    function baseLodash() {\n      // No operation performed.\n    }\n\n    /**\n     * The base constructor for creating `lodash` wrapper objects.\n     *\n     * @private\n     * @param {*} value The value to wrap.\n     * @param {boolean} [chainAll] Enable explicit method chain sequences.\n     */\n    function LodashWrapper(value, chainAll) {\n      this.__wrapped__ = value;\n      this.__actions__ = [];\n      this.__chain__ = !!chainAll;\n      this.__index__ = 0;\n      this.__values__ = undefined;\n    }\n\n    /**\n     * By default, the template delimiters used by lodash are like those in\n     * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n     * following template settings to use alternative delimiters.\n     *\n     * @static\n     * @memberOf _\n     * @type {Object}\n     */\n    lodash.templateSettings = {\n\n      /**\n       * Used to detect `data` property values to be HTML-escaped.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'escape': reEscape,\n\n      /**\n       * Used to detect code to be evaluated.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'evaluate': reEvaluate,\n\n      /**\n       * Used to detect `data` property values to inject.\n       *\n       * @memberOf _.templateSettings\n       * @type {RegExp}\n       */\n      'interpolate': reInterpolate,\n\n      /**\n       * Used to reference the data object in the template text.\n       *\n       * @memberOf _.templateSettings\n       * @type {string}\n       */\n      'variable': '',\n\n      /**\n       * Used to import variables into the compiled template.\n       *\n       * @memberOf _.templateSettings\n       * @type {Object}\n       */\n      'imports': {\n\n        /**\n         * A reference to the `lodash` function.\n         *\n         * @memberOf _.templateSettings.imports\n         * @type {Function}\n         */\n        '_': lodash\n      }\n    };\n\n    // Ensure wrappers are instances of `baseLodash`.\n    lodash.prototype = baseLodash.prototype;\n    lodash.prototype.constructor = lodash;\n\n    LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n    LodashWrapper.prototype.constructor = LodashWrapper;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n     *\n     * @private\n     * @constructor\n     * @param {*} value The value to wrap.\n     */\n    function LazyWrapper(value) {\n      this.__wrapped__ = value;\n      this.__actions__ = [];\n      this.__dir__ = 1;\n      this.__filtered__ = false;\n      this.__iteratees__ = [];\n      this.__takeCount__ = MAX_ARRAY_LENGTH;\n      this.__views__ = [];\n    }\n\n    /**\n     * Creates a clone of the lazy wrapper object.\n     *\n     * @private\n     * @name clone\n     * @memberOf LazyWrapper\n     * @returns {Object} Returns the cloned `LazyWrapper` object.\n     */\n    function lazyClone() {\n      var result = new LazyWrapper(this.__wrapped__);\n      result.__actions__ = copyArray(this.__actions__);\n      result.__dir__ = this.__dir__;\n      result.__filtered__ = this.__filtered__;\n      result.__iteratees__ = copyArray(this.__iteratees__);\n      result.__takeCount__ = this.__takeCount__;\n      result.__views__ = copyArray(this.__views__);\n      return result;\n    }\n\n    /**\n     * Reverses the direction of lazy iteration.\n     *\n     * @private\n     * @name reverse\n     * @memberOf LazyWrapper\n     * @returns {Object} Returns the new reversed `LazyWrapper` object.\n     */\n    function lazyReverse() {\n      if (this.__filtered__) {\n        var result = new LazyWrapper(this);\n        result.__dir__ = -1;\n        result.__filtered__ = true;\n      } else {\n        result = this.clone();\n        result.__dir__ *= -1;\n      }\n      return result;\n    }\n\n    /**\n     * Extracts the unwrapped value from its lazy wrapper.\n     *\n     * @private\n     * @name value\n     * @memberOf LazyWrapper\n     * @returns {*} Returns the unwrapped value.\n     */\n    function lazyValue() {\n      var array = this.__wrapped__.value(),\n          dir = this.__dir__,\n          isArr = isArray(array),\n          isRight = dir < 0,\n          arrLength = isArr ? array.length : 0,\n          view = getView(0, arrLength, this.__views__),\n          start = view.start,\n          end = view.end,\n          length = end - start,\n          index = isRight ? end : (start - 1),\n          iteratees = this.__iteratees__,\n          iterLength = iteratees.length,\n          resIndex = 0,\n          takeCount = nativeMin(length, this.__takeCount__);\n\n      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n        return baseWrapperValue(array, this.__actions__);\n      }\n      var result = [];\n\n      outer:\n      while (length-- && resIndex < takeCount) {\n        index += dir;\n\n        var iterIndex = -1,\n            value = array[index];\n\n        while (++iterIndex < iterLength) {\n          var data = iteratees[iterIndex],\n              iteratee = data.iteratee,\n              type = data.type,\n              computed = iteratee(value);\n\n          if (type == LAZY_MAP_FLAG) {\n            value = computed;\n          } else if (!computed) {\n            if (type == LAZY_FILTER_FLAG) {\n              continue outer;\n            } else {\n              break outer;\n            }\n          }\n        }\n        result[resIndex++] = value;\n      }\n      return result;\n    }\n\n    // Ensure `LazyWrapper` is an instance of `baseLodash`.\n    LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n    LazyWrapper.prototype.constructor = LazyWrapper;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a hash object.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function Hash(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n\n      this.clear();\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n\n    /**\n     * Removes all key-value entries from the hash.\n     *\n     * @private\n     * @name clear\n     * @memberOf Hash\n     */\n    function hashClear() {\n      this.__data__ = nativeCreate ? nativeCreate(null) : {};\n      this.size = 0;\n    }\n\n    /**\n     * Removes `key` and its value from the hash.\n     *\n     * @private\n     * @name delete\n     * @memberOf Hash\n     * @param {Object} hash The hash to modify.\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function hashDelete(key) {\n      var result = this.has(key) && delete this.__data__[key];\n      this.size -= result ? 1 : 0;\n      return result;\n    }\n\n    /**\n     * Gets the hash value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf Hash\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function hashGet(key) {\n      var data = this.__data__;\n      if (nativeCreate) {\n        var result = data[key];\n        return result === HASH_UNDEFINED ? undefined : result;\n      }\n      return hasOwnProperty.call(data, key) ? data[key] : undefined;\n    }\n\n    /**\n     * Checks if a hash value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf Hash\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function hashHas(key) {\n      var data = this.__data__;\n      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n    }\n\n    /**\n     * Sets the hash `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf Hash\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the hash instance.\n     */\n    function hashSet(key, value) {\n      var data = this.__data__;\n      this.size += this.has(key) ? 0 : 1;\n      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n      return this;\n    }\n\n    // Add methods to `Hash`.\n    Hash.prototype.clear = hashClear;\n    Hash.prototype['delete'] = hashDelete;\n    Hash.prototype.get = hashGet;\n    Hash.prototype.has = hashHas;\n    Hash.prototype.set = hashSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an list cache object.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function ListCache(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n\n      this.clear();\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n\n    /**\n     * Removes all key-value entries from the list cache.\n     *\n     * @private\n     * @name clear\n     * @memberOf ListCache\n     */\n    function listCacheClear() {\n      this.__data__ = [];\n      this.size = 0;\n    }\n\n    /**\n     * Removes `key` and its value from the list cache.\n     *\n     * @private\n     * @name delete\n     * @memberOf ListCache\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function listCacheDelete(key) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      if (index < 0) {\n        return false;\n      }\n      var lastIndex = data.length - 1;\n      if (index == lastIndex) {\n        data.pop();\n      } else {\n        splice.call(data, index, 1);\n      }\n      --this.size;\n      return true;\n    }\n\n    /**\n     * Gets the list cache value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf ListCache\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function listCacheGet(key) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      return index < 0 ? undefined : data[index][1];\n    }\n\n    /**\n     * Checks if a list cache value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf ListCache\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function listCacheHas(key) {\n      return assocIndexOf(this.__data__, key) > -1;\n    }\n\n    /**\n     * Sets the list cache `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf ListCache\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the list cache instance.\n     */\n    function listCacheSet(key, value) {\n      var data = this.__data__,\n          index = assocIndexOf(data, key);\n\n      if (index < 0) {\n        ++this.size;\n        data.push([key, value]);\n      } else {\n        data[index][1] = value;\n      }\n      return this;\n    }\n\n    // Add methods to `ListCache`.\n    ListCache.prototype.clear = listCacheClear;\n    ListCache.prototype['delete'] = listCacheDelete;\n    ListCache.prototype.get = listCacheGet;\n    ListCache.prototype.has = listCacheHas;\n    ListCache.prototype.set = listCacheSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a map cache object to store key-value pairs.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function MapCache(entries) {\n      var index = -1,\n          length = entries == null ? 0 : entries.length;\n\n      this.clear();\n      while (++index < length) {\n        var entry = entries[index];\n        this.set(entry[0], entry[1]);\n      }\n    }\n\n    /**\n     * Removes all key-value entries from the map.\n     *\n     * @private\n     * @name clear\n     * @memberOf MapCache\n     */\n    function mapCacheClear() {\n      this.size = 0;\n      this.__data__ = {\n        'hash': new Hash,\n        'map': new (Map || ListCache),\n        'string': new Hash\n      };\n    }\n\n    /**\n     * Removes `key` and its value from the map.\n     *\n     * @private\n     * @name delete\n     * @memberOf MapCache\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function mapCacheDelete(key) {\n      var result = getMapData(this, key)['delete'](key);\n      this.size -= result ? 1 : 0;\n      return result;\n    }\n\n    /**\n     * Gets the map value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf MapCache\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function mapCacheGet(key) {\n      return getMapData(this, key).get(key);\n    }\n\n    /**\n     * Checks if a map value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf MapCache\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function mapCacheHas(key) {\n      return getMapData(this, key).has(key);\n    }\n\n    /**\n     * Sets the map `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf MapCache\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the map cache instance.\n     */\n    function mapCacheSet(key, value) {\n      var data = getMapData(this, key),\n          size = data.size;\n\n      data.set(key, value);\n      this.size += data.size == size ? 0 : 1;\n      return this;\n    }\n\n    // Add methods to `MapCache`.\n    MapCache.prototype.clear = mapCacheClear;\n    MapCache.prototype['delete'] = mapCacheDelete;\n    MapCache.prototype.get = mapCacheGet;\n    MapCache.prototype.has = mapCacheHas;\n    MapCache.prototype.set = mapCacheSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     *\n     * Creates an array cache object to store unique values.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [values] The values to cache.\n     */\n    function SetCache(values) {\n      var index = -1,\n          length = values == null ? 0 : values.length;\n\n      this.__data__ = new MapCache;\n      while (++index < length) {\n        this.add(values[index]);\n      }\n    }\n\n    /**\n     * Adds `value` to the array cache.\n     *\n     * @private\n     * @name add\n     * @memberOf SetCache\n     * @alias push\n     * @param {*} value The value to cache.\n     * @returns {Object} Returns the cache instance.\n     */\n    function setCacheAdd(value) {\n      this.__data__.set(value, HASH_UNDEFINED);\n      return this;\n    }\n\n    /**\n     * Checks if `value` is in the array cache.\n     *\n     * @private\n     * @name has\n     * @memberOf SetCache\n     * @param {*} value The value to search for.\n     * @returns {number} Returns `true` if `value` is found, else `false`.\n     */\n    function setCacheHas(value) {\n      return this.__data__.has(value);\n    }\n\n    // Add methods to `SetCache`.\n    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n    SetCache.prototype.has = setCacheHas;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a stack cache object to store key-value pairs.\n     *\n     * @private\n     * @constructor\n     * @param {Array} [entries] The key-value pairs to cache.\n     */\n    function Stack(entries) {\n      var data = this.__data__ = new ListCache(entries);\n      this.size = data.size;\n    }\n\n    /**\n     * Removes all key-value entries from the stack.\n     *\n     * @private\n     * @name clear\n     * @memberOf Stack\n     */\n    function stackClear() {\n      this.__data__ = new ListCache;\n      this.size = 0;\n    }\n\n    /**\n     * Removes `key` and its value from the stack.\n     *\n     * @private\n     * @name delete\n     * @memberOf Stack\n     * @param {string} key The key of the value to remove.\n     * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n     */\n    function stackDelete(key) {\n      var data = this.__data__,\n          result = data['delete'](key);\n\n      this.size = data.size;\n      return result;\n    }\n\n    /**\n     * Gets the stack value for `key`.\n     *\n     * @private\n     * @name get\n     * @memberOf Stack\n     * @param {string} key The key of the value to get.\n     * @returns {*} Returns the entry value.\n     */\n    function stackGet(key) {\n      return this.__data__.get(key);\n    }\n\n    /**\n     * Checks if a stack value for `key` exists.\n     *\n     * @private\n     * @name has\n     * @memberOf Stack\n     * @param {string} key The key of the entry to check.\n     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n     */\n    function stackHas(key) {\n      return this.__data__.has(key);\n    }\n\n    /**\n     * Sets the stack `key` to `value`.\n     *\n     * @private\n     * @name set\n     * @memberOf Stack\n     * @param {string} key The key of the value to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns the stack cache instance.\n     */\n    function stackSet(key, value) {\n      var data = this.__data__;\n      if (data instanceof ListCache) {\n        var pairs = data.__data__;\n        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n          pairs.push([key, value]);\n          this.size = ++data.size;\n          return this;\n        }\n        data = this.__data__ = new MapCache(pairs);\n      }\n      data.set(key, value);\n      this.size = data.size;\n      return this;\n    }\n\n    // Add methods to `Stack`.\n    Stack.prototype.clear = stackClear;\n    Stack.prototype['delete'] = stackDelete;\n    Stack.prototype.get = stackGet;\n    Stack.prototype.has = stackHas;\n    Stack.prototype.set = stackSet;\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an array of the enumerable property names of the array-like `value`.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @param {boolean} inherited Specify returning inherited property names.\n     * @returns {Array} Returns the array of property names.\n     */\n    function arrayLikeKeys(value, inherited) {\n      var isArr = isArray(value),\n          isArg = !isArr && isArguments(value),\n          isBuff = !isArr && !isArg && isBuffer(value),\n          isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n          skipIndexes = isArr || isArg || isBuff || isType,\n          result = skipIndexes ? baseTimes(value.length, String) : [],\n          length = result.length;\n\n      for (var key in value) {\n        if ((inherited || hasOwnProperty.call(value, key)) &&\n            !(skipIndexes && (\n               // Safari 9 has enumerable `arguments.length` in strict mode.\n               key == 'length' ||\n               // Node.js 0.10 has enumerable non-index properties on buffers.\n               (isBuff && (key == 'offset' || key == 'parent')) ||\n               // PhantomJS 2 has enumerable non-index properties on typed arrays.\n               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n               // Skip index properties.\n               isIndex(key, length)\n            ))) {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * A specialized version of `_.sample` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to sample.\n     * @returns {*} Returns the random element.\n     */\n    function arraySample(array) {\n      var length = array.length;\n      return length ? array[baseRandom(0, length - 1)] : undefined;\n    }\n\n    /**\n     * A specialized version of `_.sampleSize` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to sample.\n     * @param {number} n The number of elements to sample.\n     * @returns {Array} Returns the random elements.\n     */\n    function arraySampleSize(array, n) {\n      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n    }\n\n    /**\n     * A specialized version of `_.shuffle` for arrays.\n     *\n     * @private\n     * @param {Array} array The array to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     */\n    function arrayShuffle(array) {\n      return shuffleSelf(copyArray(array));\n    }\n\n    /**\n     * This function is like `assignValue` except that it doesn't assign\n     * `undefined` values.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n    function assignMergeValue(object, key, value) {\n      if ((value !== undefined && !eq(object[key], value)) ||\n          (value === undefined && !(key in object))) {\n        baseAssignValue(object, key, value);\n      }\n    }\n\n    /**\n     * Assigns `value` to `key` of `object` if the existing value is not equivalent\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n    function assignValue(object, key, value) {\n      var objValue = object[key];\n      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n          (value === undefined && !(key in object))) {\n        baseAssignValue(object, key, value);\n      }\n    }\n\n    /**\n     * Gets the index at which the `key` is found in `array` of key-value pairs.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {*} key The key to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     */\n    function assocIndexOf(array, key) {\n      var length = array.length;\n      while (length--) {\n        if (eq(array[length][0], key)) {\n          return length;\n        }\n      }\n      return -1;\n    }\n\n    /**\n     * Aggregates elements of `collection` on `accumulator` with keys transformed\n     * by `iteratee` and values set by `setter`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} setter The function to set `accumulator` values.\n     * @param {Function} iteratee The iteratee to transform keys.\n     * @param {Object} accumulator The initial aggregated object.\n     * @returns {Function} Returns `accumulator`.\n     */\n    function baseAggregator(collection, setter, iteratee, accumulator) {\n      baseEach(collection, function(value, key, collection) {\n        setter(accumulator, value, iteratee(value), collection);\n      });\n      return accumulator;\n    }\n\n    /**\n     * The base implementation of `_.assign` without support for multiple sources\n     * or `customizer` functions.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @returns {Object} Returns `object`.\n     */\n    function baseAssign(object, source) {\n      return object && copyObject(source, keys(source), object);\n    }\n\n    /**\n     * The base implementation of `_.assignIn` without support for multiple sources\n     * or `customizer` functions.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @returns {Object} Returns `object`.\n     */\n    function baseAssignIn(object, source) {\n      return object && copyObject(source, keysIn(source), object);\n    }\n\n    /**\n     * The base implementation of `assignValue` and `assignMergeValue` without\n     * value checks.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {string} key The key of the property to assign.\n     * @param {*} value The value to assign.\n     */\n    function baseAssignValue(object, key, value) {\n      if (key == '__proto__' && defineProperty) {\n        defineProperty(object, key, {\n          'configurable': true,\n          'enumerable': true,\n          'value': value,\n          'writable': true\n        });\n      } else {\n        object[key] = value;\n      }\n    }\n\n    /**\n     * The base implementation of `_.at` without support for individual paths.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {string[]} paths The property paths to pick.\n     * @returns {Array} Returns the picked elements.\n     */\n    function baseAt(object, paths) {\n      var index = -1,\n          length = paths.length,\n          result = Array(length),\n          skip = object == null;\n\n      while (++index < length) {\n        result[index] = skip ? undefined : get(object, paths[index]);\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.clamp` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {number} number The number to clamp.\n     * @param {number} [lower] The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the clamped number.\n     */\n    function baseClamp(number, lower, upper) {\n      if (number === number) {\n        if (upper !== undefined) {\n          number = number <= upper ? number : upper;\n        }\n        if (lower !== undefined) {\n          number = number >= lower ? number : lower;\n        }\n      }\n      return number;\n    }\n\n    /**\n     * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n     * traversed objects.\n     *\n     * @private\n     * @param {*} value The value to clone.\n     * @param {boolean} bitmask The bitmask flags.\n     *  1 - Deep clone\n     *  2 - Flatten inherited properties\n     *  4 - Clone symbols\n     * @param {Function} [customizer] The function to customize cloning.\n     * @param {string} [key] The key of `value`.\n     * @param {Object} [object] The parent object of `value`.\n     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n     * @returns {*} Returns the cloned value.\n     */\n    function baseClone(value, bitmask, customizer, key, object, stack) {\n      var result,\n          isDeep = bitmask & CLONE_DEEP_FLAG,\n          isFlat = bitmask & CLONE_FLAT_FLAG,\n          isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n      if (customizer) {\n        result = object ? customizer(value, key, object, stack) : customizer(value);\n      }\n      if (result !== undefined) {\n        return result;\n      }\n      if (!isObject(value)) {\n        return value;\n      }\n      var isArr = isArray(value);\n      if (isArr) {\n        result = initCloneArray(value);\n        if (!isDeep) {\n          return copyArray(value, result);\n        }\n      } else {\n        var tag = getTag(value),\n            isFunc = tag == funcTag || tag == genTag;\n\n        if (isBuffer(value)) {\n          return cloneBuffer(value, isDeep);\n        }\n        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n          result = (isFlat || isFunc) ? {} : initCloneObject(value);\n          if (!isDeep) {\n            return isFlat\n              ? copySymbolsIn(value, baseAssignIn(result, value))\n              : copySymbols(value, baseAssign(result, value));\n          }\n        } else {\n          if (!cloneableTags[tag]) {\n            return object ? value : {};\n          }\n          result = initCloneByTag(value, tag, isDeep);\n        }\n      }\n      // Check for circular references and return its corresponding clone.\n      stack || (stack = new Stack);\n      var stacked = stack.get(value);\n      if (stacked) {\n        return stacked;\n      }\n      stack.set(value, result);\n\n      if (isSet(value)) {\n        value.forEach(function(subValue) {\n          result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n        });\n      } else if (isMap(value)) {\n        value.forEach(function(subValue, key) {\n          result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n        });\n      }\n\n      var keysFunc = isFull\n        ? (isFlat ? getAllKeysIn : getAllKeys)\n        : (isFlat ? keysIn : keys);\n\n      var props = isArr ? undefined : keysFunc(value);\n      arrayEach(props || value, function(subValue, key) {\n        if (props) {\n          key = subValue;\n          subValue = value[key];\n        }\n        // Recursively populate clone (susceptible to call stack limits).\n        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.conforms` which doesn't clone `source`.\n     *\n     * @private\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {Function} Returns the new spec function.\n     */\n    function baseConforms(source) {\n      var props = keys(source);\n      return function(object) {\n        return baseConformsTo(object, source, props);\n      };\n    }\n\n    /**\n     * The base implementation of `_.conformsTo` which accepts `props` to check.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n     */\n    function baseConformsTo(object, source, props) {\n      var length = props.length;\n      if (object == null) {\n        return !length;\n      }\n      object = Object(object);\n      while (length--) {\n        var key = props[length],\n            predicate = source[key],\n            value = object[key];\n\n        if ((value === undefined && !(key in object)) || !predicate(value)) {\n          return false;\n        }\n      }\n      return true;\n    }\n\n    /**\n     * The base implementation of `_.delay` and `_.defer` which accepts `args`\n     * to provide to `func`.\n     *\n     * @private\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @param {Array} args The arguments to provide to `func`.\n     * @returns {number|Object} Returns the timer id or timeout object.\n     */\n    function baseDelay(func, wait, args) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      return setTimeout(function() { func.apply(undefined, args); }, wait);\n    }\n\n    /**\n     * The base implementation of methods like `_.difference` without support\n     * for excluding multiple arrays or iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Array} values The values to exclude.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     */\n    function baseDifference(array, values, iteratee, comparator) {\n      var index = -1,\n          includes = arrayIncludes,\n          isCommon = true,\n          length = array.length,\n          result = [],\n          valuesLength = values.length;\n\n      if (!length) {\n        return result;\n      }\n      if (iteratee) {\n        values = arrayMap(values, baseUnary(iteratee));\n      }\n      if (comparator) {\n        includes = arrayIncludesWith;\n        isCommon = false;\n      }\n      else if (values.length >= LARGE_ARRAY_SIZE) {\n        includes = cacheHas;\n        isCommon = false;\n        values = new SetCache(values);\n      }\n      outer:\n      while (++index < length) {\n        var value = array[index],\n            computed = iteratee == null ? value : iteratee(value);\n\n        value = (comparator || value !== 0) ? value : 0;\n        if (isCommon && computed === computed) {\n          var valuesIndex = valuesLength;\n          while (valuesIndex--) {\n            if (values[valuesIndex] === computed) {\n              continue outer;\n            }\n          }\n          result.push(value);\n        }\n        else if (!includes(values, computed, comparator)) {\n          result.push(value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.forEach` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     */\n    var baseEach = createBaseEach(baseForOwn);\n\n    /**\n     * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     */\n    var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n    /**\n     * The base implementation of `_.every` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {boolean} Returns `true` if all elements pass the predicate check,\n     *  else `false`\n     */\n    function baseEvery(collection, predicate) {\n      var result = true;\n      baseEach(collection, function(value, index, collection) {\n        result = !!predicate(value, index, collection);\n        return result;\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of methods like `_.max` and `_.min` which accepts a\n     * `comparator` to determine the extremum value.\n     *\n     * @private\n     * @param {Array} array The array to iterate over.\n     * @param {Function} iteratee The iteratee invoked per iteration.\n     * @param {Function} comparator The comparator used to compare values.\n     * @returns {*} Returns the extremum value.\n     */\n    function baseExtremum(array, iteratee, comparator) {\n      var index = -1,\n          length = array.length;\n\n      while (++index < length) {\n        var value = array[index],\n            current = iteratee(value);\n\n        if (current != null && (computed === undefined\n              ? (current === current && !isSymbol(current))\n              : comparator(current, computed)\n            )) {\n          var computed = current,\n              result = value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.fill` without an iteratee call guard.\n     *\n     * @private\n     * @param {Array} array The array to fill.\n     * @param {*} value The value to fill `array` with.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns `array`.\n     */\n    function baseFill(array, value, start, end) {\n      var length = array.length;\n\n      start = toInteger(start);\n      if (start < 0) {\n        start = -start > length ? 0 : (length + start);\n      }\n      end = (end === undefined || end > length) ? length : toInteger(end);\n      if (end < 0) {\n        end += length;\n      }\n      end = start > end ? 0 : toLength(end);\n      while (start < end) {\n        array[start++] = value;\n      }\n      return array;\n    }\n\n    /**\n     * The base implementation of `_.filter` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     */\n    function baseFilter(collection, predicate) {\n      var result = [];\n      baseEach(collection, function(value, index, collection) {\n        if (predicate(value, index, collection)) {\n          result.push(value);\n        }\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.flatten` with support for restricting flattening.\n     *\n     * @private\n     * @param {Array} array The array to flatten.\n     * @param {number} depth The maximum recursion depth.\n     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n     * @param {Array} [result=[]] The initial result value.\n     * @returns {Array} Returns the new flattened array.\n     */\n    function baseFlatten(array, depth, predicate, isStrict, result) {\n      var index = -1,\n          length = array.length;\n\n      predicate || (predicate = isFlattenable);\n      result || (result = []);\n\n      while (++index < length) {\n        var value = array[index];\n        if (depth > 0 && predicate(value)) {\n          if (depth > 1) {\n            // Recursively flatten arrays (susceptible to call stack limits).\n            baseFlatten(value, depth - 1, predicate, isStrict, result);\n          } else {\n            arrayPush(result, value);\n          }\n        } else if (!isStrict) {\n          result[result.length] = value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `baseForOwn` which iterates over `object`\n     * properties returned by `keysFunc` and invokes `iteratee` for each property.\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @returns {Object} Returns `object`.\n     */\n    var baseFor = createBaseFor();\n\n    /**\n     * This function is like `baseFor` except that it iterates over properties\n     * in the opposite order.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @returns {Object} Returns `object`.\n     */\n    var baseForRight = createBaseFor(true);\n\n    /**\n     * The base implementation of `_.forOwn` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     */\n    function baseForOwn(object, iteratee) {\n      return object && baseFor(object, iteratee, keys);\n    }\n\n    /**\n     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     */\n    function baseForOwnRight(object, iteratee) {\n      return object && baseForRight(object, iteratee, keys);\n    }\n\n    /**\n     * The base implementation of `_.functions` which creates an array of\n     * `object` function property names filtered from `props`.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Array} props The property names to filter.\n     * @returns {Array} Returns the function names.\n     */\n    function baseFunctions(object, props) {\n      return arrayFilter(props, function(key) {\n        return isFunction(object[key]);\n      });\n    }\n\n    /**\n     * The base implementation of `_.get` without support for default values.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to get.\n     * @returns {*} Returns the resolved value.\n     */\n    function baseGet(object, path) {\n      path = castPath(path, object);\n\n      var index = 0,\n          length = path.length;\n\n      while (object != null && index < length) {\n        object = object[toKey(path[index++])];\n      }\n      return (index && index == length) ? object : undefined;\n    }\n\n    /**\n     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n     * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n     * symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Function} keysFunc The function to get the keys of `object`.\n     * @param {Function} symbolsFunc The function to get the symbols of `object`.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n    function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n      var result = keysFunc(object);\n      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n    }\n\n    /**\n     * The base implementation of `getTag` without fallbacks for buggy environments.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the `toStringTag`.\n     */\n    function baseGetTag(value) {\n      if (value == null) {\n        return value === undefined ? undefinedTag : nullTag;\n      }\n      return (symToStringTag && symToStringTag in Object(value))\n        ? getRawTag(value)\n        : objectToString(value);\n    }\n\n    /**\n     * The base implementation of `_.gt` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than `other`,\n     *  else `false`.\n     */\n    function baseGt(value, other) {\n      return value > other;\n    }\n\n    /**\n     * The base implementation of `_.has` without support for deep paths.\n     *\n     * @private\n     * @param {Object} [object] The object to query.\n     * @param {Array|string} key The key to check.\n     * @returns {boolean} Returns `true` if `key` exists, else `false`.\n     */\n    function baseHas(object, key) {\n      return object != null && hasOwnProperty.call(object, key);\n    }\n\n    /**\n     * The base implementation of `_.hasIn` without support for deep paths.\n     *\n     * @private\n     * @param {Object} [object] The object to query.\n     * @param {Array|string} key The key to check.\n     * @returns {boolean} Returns `true` if `key` exists, else `false`.\n     */\n    function baseHasIn(object, key) {\n      return object != null && key in Object(object);\n    }\n\n    /**\n     * The base implementation of `_.inRange` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {number} number The number to check.\n     * @param {number} start The start of the range.\n     * @param {number} end The end of the range.\n     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n     */\n    function baseInRange(number, start, end) {\n      return number >= nativeMin(start, end) && number < nativeMax(start, end);\n    }\n\n    /**\n     * The base implementation of methods like `_.intersection`, without support\n     * for iteratee shorthands, that accepts an array of arrays to inspect.\n     *\n     * @private\n     * @param {Array} arrays The arrays to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of shared values.\n     */\n    function baseIntersection(arrays, iteratee, comparator) {\n      var includes = comparator ? arrayIncludesWith : arrayIncludes,\n          length = arrays[0].length,\n          othLength = arrays.length,\n          othIndex = othLength,\n          caches = Array(othLength),\n          maxLength = Infinity,\n          result = [];\n\n      while (othIndex--) {\n        var array = arrays[othIndex];\n        if (othIndex && iteratee) {\n          array = arrayMap(array, baseUnary(iteratee));\n        }\n        maxLength = nativeMin(array.length, maxLength);\n        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n          ? new SetCache(othIndex && array)\n          : undefined;\n      }\n      array = arrays[0];\n\n      var index = -1,\n          seen = caches[0];\n\n      outer:\n      while (++index < length && result.length < maxLength) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        value = (comparator || value !== 0) ? value : 0;\n        if (!(seen\n              ? cacheHas(seen, computed)\n              : includes(result, computed, comparator)\n            )) {\n          othIndex = othLength;\n          while (--othIndex) {\n            var cache = caches[othIndex];\n            if (!(cache\n                  ? cacheHas(cache, computed)\n                  : includes(arrays[othIndex], computed, comparator))\n                ) {\n              continue outer;\n            }\n          }\n          if (seen) {\n            seen.push(computed);\n          }\n          result.push(value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.invert` and `_.invertBy` which inverts\n     * `object` with values transformed by `iteratee` and set by `setter`.\n     *\n     * @private\n     * @param {Object} object The object to iterate over.\n     * @param {Function} setter The function to set `accumulator` values.\n     * @param {Function} iteratee The iteratee to transform values.\n     * @param {Object} accumulator The initial inverted object.\n     * @returns {Function} Returns `accumulator`.\n     */\n    function baseInverter(object, setter, iteratee, accumulator) {\n      baseForOwn(object, function(value, key, object) {\n        setter(accumulator, iteratee(value), key, object);\n      });\n      return accumulator;\n    }\n\n    /**\n     * The base implementation of `_.invoke` without support for individual\n     * method arguments.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {Array} args The arguments to invoke the method with.\n     * @returns {*} Returns the result of the invoked method.\n     */\n    function baseInvoke(object, path, args) {\n      path = castPath(path, object);\n      object = parent(object, path);\n      var func = object == null ? object : object[toKey(last(path))];\n      return func == null ? undefined : apply(func, object, args);\n    }\n\n    /**\n     * The base implementation of `_.isArguments`.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n     */\n    function baseIsArguments(value) {\n      return isObjectLike(value) && baseGetTag(value) == argsTag;\n    }\n\n    /**\n     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n     */\n    function baseIsArrayBuffer(value) {\n      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n    }\n\n    /**\n     * The base implementation of `_.isDate` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n     */\n    function baseIsDate(value) {\n      return isObjectLike(value) && baseGetTag(value) == dateTag;\n    }\n\n    /**\n     * The base implementation of `_.isEqual` which supports partial comparisons\n     * and tracks traversed objects.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @param {boolean} bitmask The bitmask flags.\n     *  1 - Unordered comparison\n     *  2 - Partial comparison\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     */\n    function baseIsEqual(value, other, bitmask, customizer, stack) {\n      if (value === other) {\n        return true;\n      }\n      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n        return value !== value && other !== other;\n      }\n      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n    }\n\n    /**\n     * A specialized version of `baseIsEqual` for arrays and objects which performs\n     * deep comparisons and tracks traversed objects enabling objects with circular\n     * references to be compared.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n      var objIsArr = isArray(object),\n          othIsArr = isArray(other),\n          objTag = objIsArr ? arrayTag : getTag(object),\n          othTag = othIsArr ? arrayTag : getTag(other);\n\n      objTag = objTag == argsTag ? objectTag : objTag;\n      othTag = othTag == argsTag ? objectTag : othTag;\n\n      var objIsObj = objTag == objectTag,\n          othIsObj = othTag == objectTag,\n          isSameTag = objTag == othTag;\n\n      if (isSameTag && isBuffer(object)) {\n        if (!isBuffer(other)) {\n          return false;\n        }\n        objIsArr = true;\n        objIsObj = false;\n      }\n      if (isSameTag && !objIsObj) {\n        stack || (stack = new Stack);\n        return (objIsArr || isTypedArray(object))\n          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n      }\n      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n        if (objIsWrapped || othIsWrapped) {\n          var objUnwrapped = objIsWrapped ? object.value() : object,\n              othUnwrapped = othIsWrapped ? other.value() : other;\n\n          stack || (stack = new Stack);\n          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n        }\n      }\n      if (!isSameTag) {\n        return false;\n      }\n      stack || (stack = new Stack);\n      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n    }\n\n    /**\n     * The base implementation of `_.isMap` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n     */\n    function baseIsMap(value) {\n      return isObjectLike(value) && getTag(value) == mapTag;\n    }\n\n    /**\n     * The base implementation of `_.isMatch` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @param {Array} matchData The property names, values, and compare flags to match.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     */\n    function baseIsMatch(object, source, matchData, customizer) {\n      var index = matchData.length,\n          length = index,\n          noCustomizer = !customizer;\n\n      if (object == null) {\n        return !length;\n      }\n      object = Object(object);\n      while (index--) {\n        var data = matchData[index];\n        if ((noCustomizer && data[2])\n              ? data[1] !== object[data[0]]\n              : !(data[0] in object)\n            ) {\n          return false;\n        }\n      }\n      while (++index < length) {\n        data = matchData[index];\n        var key = data[0],\n            objValue = object[key],\n            srcValue = data[1];\n\n        if (noCustomizer && data[2]) {\n          if (objValue === undefined && !(key in object)) {\n            return false;\n          }\n        } else {\n          var stack = new Stack;\n          if (customizer) {\n            var result = customizer(objValue, srcValue, key, object, source, stack);\n          }\n          if (!(result === undefined\n                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n                : result\n              )) {\n            return false;\n          }\n        }\n      }\n      return true;\n    }\n\n    /**\n     * The base implementation of `_.isNative` without bad shim checks.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a native function,\n     *  else `false`.\n     */\n    function baseIsNative(value) {\n      if (!isObject(value) || isMasked(value)) {\n        return false;\n      }\n      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n      return pattern.test(toSource(value));\n    }\n\n    /**\n     * The base implementation of `_.isRegExp` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n     */\n    function baseIsRegExp(value) {\n      return isObjectLike(value) && baseGetTag(value) == regexpTag;\n    }\n\n    /**\n     * The base implementation of `_.isSet` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n     */\n    function baseIsSet(value) {\n      return isObjectLike(value) && getTag(value) == setTag;\n    }\n\n    /**\n     * The base implementation of `_.isTypedArray` without Node.js optimizations.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n     */\n    function baseIsTypedArray(value) {\n      return isObjectLike(value) &&\n        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n    }\n\n    /**\n     * The base implementation of `_.iteratee`.\n     *\n     * @private\n     * @param {*} [value=_.identity] The value to convert to an iteratee.\n     * @returns {Function} Returns the iteratee.\n     */\n    function baseIteratee(value) {\n      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n      if (typeof value == 'function') {\n        return value;\n      }\n      if (value == null) {\n        return identity;\n      }\n      if (typeof value == 'object') {\n        return isArray(value)\n          ? baseMatchesProperty(value[0], value[1])\n          : baseMatches(value);\n      }\n      return property(value);\n    }\n\n    /**\n     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n    function baseKeys(object) {\n      if (!isPrototype(object)) {\n        return nativeKeys(object);\n      }\n      var result = [];\n      for (var key in Object(object)) {\n        if (hasOwnProperty.call(object, key) && key != 'constructor') {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n    function baseKeysIn(object) {\n      if (!isObject(object)) {\n        return nativeKeysIn(object);\n      }\n      var isProto = isPrototype(object),\n          result = [];\n\n      for (var key in object) {\n        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.lt` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than `other`,\n     *  else `false`.\n     */\n    function baseLt(value, other) {\n      return value < other;\n    }\n\n    /**\n     * The base implementation of `_.map` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} iteratee The function invoked per iteration.\n     * @returns {Array} Returns the new mapped array.\n     */\n    function baseMap(collection, iteratee) {\n      var index = -1,\n          result = isArrayLike(collection) ? Array(collection.length) : [];\n\n      baseEach(collection, function(value, key, collection) {\n        result[++index] = iteratee(value, key, collection);\n      });\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.matches` which doesn't clone `source`.\n     *\n     * @private\n     * @param {Object} source The object of property values to match.\n     * @returns {Function} Returns the new spec function.\n     */\n    function baseMatches(source) {\n      var matchData = getMatchData(source);\n      if (matchData.length == 1 && matchData[0][2]) {\n        return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n      }\n      return function(object) {\n        return object === source || baseIsMatch(object, source, matchData);\n      };\n    }\n\n    /**\n     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n     *\n     * @private\n     * @param {string} path The path of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     */\n    function baseMatchesProperty(path, srcValue) {\n      if (isKey(path) && isStrictComparable(srcValue)) {\n        return matchesStrictComparable(toKey(path), srcValue);\n      }\n      return function(object) {\n        var objValue = get(object, path);\n        return (objValue === undefined && objValue === srcValue)\n          ? hasIn(object, path)\n          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n      };\n    }\n\n    /**\n     * The base implementation of `_.merge` without support for multiple sources.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @param {number} srcIndex The index of `source`.\n     * @param {Function} [customizer] The function to customize merged values.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     */\n    function baseMerge(object, source, srcIndex, customizer, stack) {\n      if (object === source) {\n        return;\n      }\n      baseFor(source, function(srcValue, key) {\n        stack || (stack = new Stack);\n        if (isObject(srcValue)) {\n          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n        }\n        else {\n          var newValue = customizer\n            ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n            : undefined;\n\n          if (newValue === undefined) {\n            newValue = srcValue;\n          }\n          assignMergeValue(object, key, newValue);\n        }\n      }, keysIn);\n    }\n\n    /**\n     * A specialized version of `baseMerge` for arrays and objects which performs\n     * deep merges and tracks traversed objects enabling objects with circular\n     * references to be merged.\n     *\n     * @private\n     * @param {Object} object The destination object.\n     * @param {Object} source The source object.\n     * @param {string} key The key of the value to merge.\n     * @param {number} srcIndex The index of `source`.\n     * @param {Function} mergeFunc The function to merge values.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     */\n    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n      var objValue = safeGet(object, key),\n          srcValue = safeGet(source, key),\n          stacked = stack.get(srcValue);\n\n      if (stacked) {\n        assignMergeValue(object, key, stacked);\n        return;\n      }\n      var newValue = customizer\n        ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n        : undefined;\n\n      var isCommon = newValue === undefined;\n\n      if (isCommon) {\n        var isArr = isArray(srcValue),\n            isBuff = !isArr && isBuffer(srcValue),\n            isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n        newValue = srcValue;\n        if (isArr || isBuff || isTyped) {\n          if (isArray(objValue)) {\n            newValue = objValue;\n          }\n          else if (isArrayLikeObject(objValue)) {\n            newValue = copyArray(objValue);\n          }\n          else if (isBuff) {\n            isCommon = false;\n            newValue = cloneBuffer(srcValue, true);\n          }\n          else if (isTyped) {\n            isCommon = false;\n            newValue = cloneTypedArray(srcValue, true);\n          }\n          else {\n            newValue = [];\n          }\n        }\n        else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n          newValue = objValue;\n          if (isArguments(objValue)) {\n            newValue = toPlainObject(objValue);\n          }\n          else if (!isObject(objValue) || isFunction(objValue)) {\n            newValue = initCloneObject(srcValue);\n          }\n        }\n        else {\n          isCommon = false;\n        }\n      }\n      if (isCommon) {\n        // Recursively merge objects and arrays (susceptible to call stack limits).\n        stack.set(srcValue, newValue);\n        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n        stack['delete'](srcValue);\n      }\n      assignMergeValue(object, key, newValue);\n    }\n\n    /**\n     * The base implementation of `_.nth` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {Array} array The array to query.\n     * @param {number} n The index of the element to return.\n     * @returns {*} Returns the nth element of `array`.\n     */\n    function baseNth(array, n) {\n      var length = array.length;\n      if (!length) {\n        return;\n      }\n      n += n < 0 ? length : 0;\n      return isIndex(n, length) ? array[n] : undefined;\n    }\n\n    /**\n     * The base implementation of `_.orderBy` without param guards.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n     * @param {string[]} orders The sort orders of `iteratees`.\n     * @returns {Array} Returns the new sorted array.\n     */\n    function baseOrderBy(collection, iteratees, orders) {\n      if (iteratees.length) {\n        iteratees = arrayMap(iteratees, function(iteratee) {\n          if (isArray(iteratee)) {\n            return function(value) {\n              return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n            }\n          }\n          return iteratee;\n        });\n      } else {\n        iteratees = [identity];\n      }\n\n      var index = -1;\n      iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n      var result = baseMap(collection, function(value, key, collection) {\n        var criteria = arrayMap(iteratees, function(iteratee) {\n          return iteratee(value);\n        });\n        return { 'criteria': criteria, 'index': ++index, 'value': value };\n      });\n\n      return baseSortBy(result, function(object, other) {\n        return compareMultiple(object, other, orders);\n      });\n    }\n\n    /**\n     * The base implementation of `_.pick` without support for individual\n     * property identifiers.\n     *\n     * @private\n     * @param {Object} object The source object.\n     * @param {string[]} paths The property paths to pick.\n     * @returns {Object} Returns the new object.\n     */\n    function basePick(object, paths) {\n      return basePickBy(object, paths, function(value, path) {\n        return hasIn(object, path);\n      });\n    }\n\n    /**\n     * The base implementation of  `_.pickBy` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Object} object The source object.\n     * @param {string[]} paths The property paths to pick.\n     * @param {Function} predicate The function invoked per property.\n     * @returns {Object} Returns the new object.\n     */\n    function basePickBy(object, paths, predicate) {\n      var index = -1,\n          length = paths.length,\n          result = {};\n\n      while (++index < length) {\n        var path = paths[index],\n            value = baseGet(object, path);\n\n        if (predicate(value, path)) {\n          baseSet(result, castPath(path, object), value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * A specialized version of `baseProperty` which supports deep paths.\n     *\n     * @private\n     * @param {Array|string} path The path of the property to get.\n     * @returns {Function} Returns the new accessor function.\n     */\n    function basePropertyDeep(path) {\n      return function(object) {\n        return baseGet(object, path);\n      };\n    }\n\n    /**\n     * The base implementation of `_.pullAllBy` without support for iteratee\n     * shorthands.\n     *\n     * @private\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns `array`.\n     */\n    function basePullAll(array, values, iteratee, comparator) {\n      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n          index = -1,\n          length = values.length,\n          seen = array;\n\n      if (array === values) {\n        values = copyArray(values);\n      }\n      if (iteratee) {\n        seen = arrayMap(array, baseUnary(iteratee));\n      }\n      while (++index < length) {\n        var fromIndex = 0,\n            value = values[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n          if (seen !== array) {\n            splice.call(seen, fromIndex, 1);\n          }\n          splice.call(array, fromIndex, 1);\n        }\n      }\n      return array;\n    }\n\n    /**\n     * The base implementation of `_.pullAt` without support for individual\n     * indexes or capturing the removed elements.\n     *\n     * @private\n     * @param {Array} array The array to modify.\n     * @param {number[]} indexes The indexes of elements to remove.\n     * @returns {Array} Returns `array`.\n     */\n    function basePullAt(array, indexes) {\n      var length = array ? indexes.length : 0,\n          lastIndex = length - 1;\n\n      while (length--) {\n        var index = indexes[length];\n        if (length == lastIndex || index !== previous) {\n          var previous = index;\n          if (isIndex(index)) {\n            splice.call(array, index, 1);\n          } else {\n            baseUnset(array, index);\n          }\n        }\n      }\n      return array;\n    }\n\n    /**\n     * The base implementation of `_.random` without support for returning\n     * floating-point numbers.\n     *\n     * @private\n     * @param {number} lower The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the random number.\n     */\n    function baseRandom(lower, upper) {\n      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n    }\n\n    /**\n     * The base implementation of `_.range` and `_.rangeRight` which doesn't\n     * coerce arguments.\n     *\n     * @private\n     * @param {number} start The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} step The value to increment or decrement by.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Array} Returns the range of numbers.\n     */\n    function baseRange(start, end, step, fromRight) {\n      var index = -1,\n          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n          result = Array(length);\n\n      while (length--) {\n        result[fromRight ? length : ++index] = start;\n        start += step;\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.repeat` which doesn't coerce arguments.\n     *\n     * @private\n     * @param {string} string The string to repeat.\n     * @param {number} n The number of times to repeat the string.\n     * @returns {string} Returns the repeated string.\n     */\n    function baseRepeat(string, n) {\n      var result = '';\n      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n        return result;\n      }\n      // Leverage the exponentiation by squaring algorithm for a faster repeat.\n      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n      do {\n        if (n % 2) {\n          result += string;\n        }\n        n = nativeFloor(n / 2);\n        if (n) {\n          string += string;\n        }\n      } while (n);\n\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @returns {Function} Returns the new function.\n     */\n    function baseRest(func, start) {\n      return setToString(overRest(func, start, identity), func + '');\n    }\n\n    /**\n     * The base implementation of `_.sample`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to sample.\n     * @returns {*} Returns the random element.\n     */\n    function baseSample(collection) {\n      return arraySample(values(collection));\n    }\n\n    /**\n     * The base implementation of `_.sampleSize` without param guards.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to sample.\n     * @param {number} n The number of elements to sample.\n     * @returns {Array} Returns the random elements.\n     */\n    function baseSampleSize(collection, n) {\n      var array = values(collection);\n      return shuffleSelf(array, baseClamp(n, 0, array.length));\n    }\n\n    /**\n     * The base implementation of `_.set`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @param {Function} [customizer] The function to customize path creation.\n     * @returns {Object} Returns `object`.\n     */\n    function baseSet(object, path, value, customizer) {\n      if (!isObject(object)) {\n        return object;\n      }\n      path = castPath(path, object);\n\n      var index = -1,\n          length = path.length,\n          lastIndex = length - 1,\n          nested = object;\n\n      while (nested != null && ++index < length) {\n        var key = toKey(path[index]),\n            newValue = value;\n\n        if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n          return object;\n        }\n\n        if (index != lastIndex) {\n          var objValue = nested[key];\n          newValue = customizer ? customizer(objValue, key, nested) : undefined;\n          if (newValue === undefined) {\n            newValue = isObject(objValue)\n              ? objValue\n              : (isIndex(path[index + 1]) ? [] : {});\n          }\n        }\n        assignValue(nested, key, newValue);\n        nested = nested[key];\n      }\n      return object;\n    }\n\n    /**\n     * The base implementation of `setData` without support for hot loop shorting.\n     *\n     * @private\n     * @param {Function} func The function to associate metadata with.\n     * @param {*} data The metadata.\n     * @returns {Function} Returns `func`.\n     */\n    var baseSetData = !metaMap ? identity : function(func, data) {\n      metaMap.set(func, data);\n      return func;\n    };\n\n    /**\n     * The base implementation of `setToString` without support for hot loop shorting.\n     *\n     * @private\n     * @param {Function} func The function to modify.\n     * @param {Function} string The `toString` result.\n     * @returns {Function} Returns `func`.\n     */\n    var baseSetToString = !defineProperty ? identity : function(func, string) {\n      return defineProperty(func, 'toString', {\n        'configurable': true,\n        'enumerable': false,\n        'value': constant(string),\n        'writable': true\n      });\n    };\n\n    /**\n     * The base implementation of `_.shuffle`.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     */\n    function baseShuffle(collection) {\n      return shuffleSelf(values(collection));\n    }\n\n    /**\n     * The base implementation of `_.slice` without an iteratee call guard.\n     *\n     * @private\n     * @param {Array} array The array to slice.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the slice of `array`.\n     */\n    function baseSlice(array, start, end) {\n      var index = -1,\n          length = array.length;\n\n      if (start < 0) {\n        start = -start > length ? 0 : (length + start);\n      }\n      end = end > length ? length : end;\n      if (end < 0) {\n        end += length;\n      }\n      length = start > end ? 0 : ((end - start) >>> 0);\n      start >>>= 0;\n\n      var result = Array(length);\n      while (++index < length) {\n        result[index] = array[index + start];\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.some` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} predicate The function invoked per iteration.\n     * @returns {boolean} Returns `true` if any element passes the predicate check,\n     *  else `false`.\n     */\n    function baseSome(collection, predicate) {\n      var result;\n\n      baseEach(collection, function(value, index, collection) {\n        result = predicate(value, index, collection);\n        return !result;\n      });\n      return !!result;\n    }\n\n    /**\n     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n     * performs a binary search of `array` to determine the index at which `value`\n     * should be inserted into `array` in order to maintain its sort order.\n     *\n     * @private\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {boolean} [retHighest] Specify returning the highest qualified index.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     */\n    function baseSortedIndex(array, value, retHighest) {\n      var low = 0,\n          high = array == null ? low : array.length;\n\n      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n        while (low < high) {\n          var mid = (low + high) >>> 1,\n              computed = array[mid];\n\n          if (computed !== null && !isSymbol(computed) &&\n              (retHighest ? (computed <= value) : (computed < value))) {\n            low = mid + 1;\n          } else {\n            high = mid;\n          }\n        }\n        return high;\n      }\n      return baseSortedIndexBy(array, value, identity, retHighest);\n    }\n\n    /**\n     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n     * which invokes `iteratee` for `value` and each element of `array` to compute\n     * their sort ranking. The iteratee is invoked with one argument; (value).\n     *\n     * @private\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} iteratee The iteratee invoked per element.\n     * @param {boolean} [retHighest] Specify returning the highest qualified index.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     */\n    function baseSortedIndexBy(array, value, iteratee, retHighest) {\n      var low = 0,\n          high = array == null ? 0 : array.length;\n      if (high === 0) {\n        return 0;\n      }\n\n      value = iteratee(value);\n      var valIsNaN = value !== value,\n          valIsNull = value === null,\n          valIsSymbol = isSymbol(value),\n          valIsUndefined = value === undefined;\n\n      while (low < high) {\n        var mid = nativeFloor((low + high) / 2),\n            computed = iteratee(array[mid]),\n            othIsDefined = computed !== undefined,\n            othIsNull = computed === null,\n            othIsReflexive = computed === computed,\n            othIsSymbol = isSymbol(computed);\n\n        if (valIsNaN) {\n          var setLow = retHighest || othIsReflexive;\n        } else if (valIsUndefined) {\n          setLow = othIsReflexive && (retHighest || othIsDefined);\n        } else if (valIsNull) {\n          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n        } else if (valIsSymbol) {\n          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n        } else if (othIsNull || othIsSymbol) {\n          setLow = false;\n        } else {\n          setLow = retHighest ? (computed <= value) : (computed < value);\n        }\n        if (setLow) {\n          low = mid + 1;\n        } else {\n          high = mid;\n        }\n      }\n      return nativeMin(high, MAX_ARRAY_INDEX);\n    }\n\n    /**\n     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n     * support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     */\n    function baseSortedUniq(array, iteratee) {\n      var index = -1,\n          length = array.length,\n          resIndex = 0,\n          result = [];\n\n      while (++index < length) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        if (!index || !eq(computed, seen)) {\n          var seen = computed;\n          result[resIndex++] = value === 0 ? 0 : value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.toNumber` which doesn't ensure correct\n     * conversions of binary, hexadecimal, or octal string values.\n     *\n     * @private\n     * @param {*} value The value to process.\n     * @returns {number} Returns the number.\n     */\n    function baseToNumber(value) {\n      if (typeof value == 'number') {\n        return value;\n      }\n      if (isSymbol(value)) {\n        return NAN;\n      }\n      return +value;\n    }\n\n    /**\n     * The base implementation of `_.toString` which doesn't convert nullish\n     * values to empty strings.\n     *\n     * @private\n     * @param {*} value The value to process.\n     * @returns {string} Returns the string.\n     */\n    function baseToString(value) {\n      // Exit early for strings to avoid a performance hit in some environments.\n      if (typeof value == 'string') {\n        return value;\n      }\n      if (isArray(value)) {\n        // Recursively convert values (susceptible to call stack limits).\n        return arrayMap(value, baseToString) + '';\n      }\n      if (isSymbol(value)) {\n        return symbolToString ? symbolToString.call(value) : '';\n      }\n      var result = (value + '');\n      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n    }\n\n    /**\n     * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     */\n    function baseUniq(array, iteratee, comparator) {\n      var index = -1,\n          includes = arrayIncludes,\n          length = array.length,\n          isCommon = true,\n          result = [],\n          seen = result;\n\n      if (comparator) {\n        isCommon = false;\n        includes = arrayIncludesWith;\n      }\n      else if (length >= LARGE_ARRAY_SIZE) {\n        var set = iteratee ? null : createSet(array);\n        if (set) {\n          return setToArray(set);\n        }\n        isCommon = false;\n        includes = cacheHas;\n        seen = new SetCache;\n      }\n      else {\n        seen = iteratee ? [] : result;\n      }\n      outer:\n      while (++index < length) {\n        var value = array[index],\n            computed = iteratee ? iteratee(value) : value;\n\n        value = (comparator || value !== 0) ? value : 0;\n        if (isCommon && computed === computed) {\n          var seenIndex = seen.length;\n          while (seenIndex--) {\n            if (seen[seenIndex] === computed) {\n              continue outer;\n            }\n          }\n          if (iteratee) {\n            seen.push(computed);\n          }\n          result.push(value);\n        }\n        else if (!includes(seen, computed, comparator)) {\n          if (seen !== result) {\n            seen.push(computed);\n          }\n          result.push(value);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * The base implementation of `_.unset`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The property path to unset.\n     * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n     */\n    function baseUnset(object, path) {\n      path = castPath(path, object);\n      object = parent(object, path);\n      return object == null || delete object[toKey(last(path))];\n    }\n\n    /**\n     * The base implementation of `_.update`.\n     *\n     * @private\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to update.\n     * @param {Function} updater The function to produce the updated value.\n     * @param {Function} [customizer] The function to customize path creation.\n     * @returns {Object} Returns `object`.\n     */\n    function baseUpdate(object, path, updater, customizer) {\n      return baseSet(object, path, updater(baseGet(object, path)), customizer);\n    }\n\n    /**\n     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n     * without support for iteratee shorthands.\n     *\n     * @private\n     * @param {Array} array The array to query.\n     * @param {Function} predicate The function invoked per iteration.\n     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Array} Returns the slice of `array`.\n     */\n    function baseWhile(array, predicate, isDrop, fromRight) {\n      var length = array.length,\n          index = fromRight ? length : -1;\n\n      while ((fromRight ? index-- : ++index < length) &&\n        predicate(array[index], index, array)) {}\n\n      return isDrop\n        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n    }\n\n    /**\n     * The base implementation of `wrapperValue` which returns the result of\n     * performing a sequence of actions on the unwrapped `value`, where each\n     * successive action is supplied the return value of the previous.\n     *\n     * @private\n     * @param {*} value The unwrapped value.\n     * @param {Array} actions Actions to perform to resolve the unwrapped value.\n     * @returns {*} Returns the resolved value.\n     */\n    function baseWrapperValue(value, actions) {\n      var result = value;\n      if (result instanceof LazyWrapper) {\n        result = result.value();\n      }\n      return arrayReduce(actions, function(result, action) {\n        return action.func.apply(action.thisArg, arrayPush([result], action.args));\n      }, result);\n    }\n\n    /**\n     * The base implementation of methods like `_.xor`, without support for\n     * iteratee shorthands, that accepts an array of arrays to inspect.\n     *\n     * @private\n     * @param {Array} arrays The arrays to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of values.\n     */\n    function baseXor(arrays, iteratee, comparator) {\n      var length = arrays.length;\n      if (length < 2) {\n        return length ? baseUniq(arrays[0]) : [];\n      }\n      var index = -1,\n          result = Array(length);\n\n      while (++index < length) {\n        var array = arrays[index],\n            othIndex = -1;\n\n        while (++othIndex < length) {\n          if (othIndex != index) {\n            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n          }\n        }\n      }\n      return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n    }\n\n    /**\n     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n     *\n     * @private\n     * @param {Array} props The property identifiers.\n     * @param {Array} values The property values.\n     * @param {Function} assignFunc The function to assign values.\n     * @returns {Object} Returns the new object.\n     */\n    function baseZipObject(props, values, assignFunc) {\n      var index = -1,\n          length = props.length,\n          valsLength = values.length,\n          result = {};\n\n      while (++index < length) {\n        var value = index < valsLength ? values[index] : undefined;\n        assignFunc(result, props[index], value);\n      }\n      return result;\n    }\n\n    /**\n     * Casts `value` to an empty array if it's not an array like object.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {Array|Object} Returns the cast array-like object.\n     */\n    function castArrayLikeObject(value) {\n      return isArrayLikeObject(value) ? value : [];\n    }\n\n    /**\n     * Casts `value` to `identity` if it's not a function.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {Function} Returns cast function.\n     */\n    function castFunction(value) {\n      return typeof value == 'function' ? value : identity;\n    }\n\n    /**\n     * Casts `value` to a path array if it's not one.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @param {Object} [object] The object to query keys on.\n     * @returns {Array} Returns the cast property path array.\n     */\n    function castPath(value, object) {\n      if (isArray(value)) {\n        return value;\n      }\n      return isKey(value, object) ? [value] : stringToPath(toString(value));\n    }\n\n    /**\n     * A `baseRest` alias which can be replaced with `identity` by module\n     * replacement plugins.\n     *\n     * @private\n     * @type {Function}\n     * @param {Function} func The function to apply a rest parameter to.\n     * @returns {Function} Returns the new function.\n     */\n    var castRest = baseRest;\n\n    /**\n     * Casts `array` to a slice if it's needed.\n     *\n     * @private\n     * @param {Array} array The array to inspect.\n     * @param {number} start The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the cast slice.\n     */\n    function castSlice(array, start, end) {\n      var length = array.length;\n      end = end === undefined ? length : end;\n      return (!start && end >= length) ? array : baseSlice(array, start, end);\n    }\n\n    /**\n     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n     *\n     * @private\n     * @param {number|Object} id The timer id or timeout object of the timer to clear.\n     */\n    var clearTimeout = ctxClearTimeout || function(id) {\n      return root.clearTimeout(id);\n    };\n\n    /**\n     * Creates a clone of  `buffer`.\n     *\n     * @private\n     * @param {Buffer} buffer The buffer to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Buffer} Returns the cloned buffer.\n     */\n    function cloneBuffer(buffer, isDeep) {\n      if (isDeep) {\n        return buffer.slice();\n      }\n      var length = buffer.length,\n          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n      buffer.copy(result);\n      return result;\n    }\n\n    /**\n     * Creates a clone of `arrayBuffer`.\n     *\n     * @private\n     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n     * @returns {ArrayBuffer} Returns the cloned array buffer.\n     */\n    function cloneArrayBuffer(arrayBuffer) {\n      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n      new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n      return result;\n    }\n\n    /**\n     * Creates a clone of `dataView`.\n     *\n     * @private\n     * @param {Object} dataView The data view to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the cloned data view.\n     */\n    function cloneDataView(dataView, isDeep) {\n      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n    }\n\n    /**\n     * Creates a clone of `regexp`.\n     *\n     * @private\n     * @param {Object} regexp The regexp to clone.\n     * @returns {Object} Returns the cloned regexp.\n     */\n    function cloneRegExp(regexp) {\n      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n      result.lastIndex = regexp.lastIndex;\n      return result;\n    }\n\n    /**\n     * Creates a clone of the `symbol` object.\n     *\n     * @private\n     * @param {Object} symbol The symbol object to clone.\n     * @returns {Object} Returns the cloned symbol object.\n     */\n    function cloneSymbol(symbol) {\n      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n    }\n\n    /**\n     * Creates a clone of `typedArray`.\n     *\n     * @private\n     * @param {Object} typedArray The typed array to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the cloned typed array.\n     */\n    function cloneTypedArray(typedArray, isDeep) {\n      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n    }\n\n    /**\n     * Compares values to sort them in ascending order.\n     *\n     * @private\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {number} Returns the sort order indicator for `value`.\n     */\n    function compareAscending(value, other) {\n      if (value !== other) {\n        var valIsDefined = value !== undefined,\n            valIsNull = value === null,\n            valIsReflexive = value === value,\n            valIsSymbol = isSymbol(value);\n\n        var othIsDefined = other !== undefined,\n            othIsNull = other === null,\n            othIsReflexive = other === other,\n            othIsSymbol = isSymbol(other);\n\n        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n            (valIsNull && othIsDefined && othIsReflexive) ||\n            (!valIsDefined && othIsReflexive) ||\n            !valIsReflexive) {\n          return 1;\n        }\n        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n            (othIsNull && valIsDefined && valIsReflexive) ||\n            (!othIsDefined && valIsReflexive) ||\n            !othIsReflexive) {\n          return -1;\n        }\n      }\n      return 0;\n    }\n\n    /**\n     * Used by `_.orderBy` to compare multiple properties of a value to another\n     * and stable sort them.\n     *\n     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n     * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n     * of corresponding values.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {boolean[]|string[]} orders The order to sort by for each property.\n     * @returns {number} Returns the sort order indicator for `object`.\n     */\n    function compareMultiple(object, other, orders) {\n      var index = -1,\n          objCriteria = object.criteria,\n          othCriteria = other.criteria,\n          length = objCriteria.length,\n          ordersLength = orders.length;\n\n      while (++index < length) {\n        var result = compareAscending(objCriteria[index], othCriteria[index]);\n        if (result) {\n          if (index >= ordersLength) {\n            return result;\n          }\n          var order = orders[index];\n          return result * (order == 'desc' ? -1 : 1);\n        }\n      }\n      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n      // that causes it, under certain circumstances, to provide the same value for\n      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n      // for more details.\n      //\n      // This also ensures a stable sort in V8 and other engines.\n      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n      return object.index - other.index;\n    }\n\n    /**\n     * Creates an array that is the composition of partially applied arguments,\n     * placeholders, and provided arguments into a single array of arguments.\n     *\n     * @private\n     * @param {Array} args The provided arguments.\n     * @param {Array} partials The arguments to prepend to those provided.\n     * @param {Array} holders The `partials` placeholder indexes.\n     * @params {boolean} [isCurried] Specify composing for a curried function.\n     * @returns {Array} Returns the new array of composed arguments.\n     */\n    function composeArgs(args, partials, holders, isCurried) {\n      var argsIndex = -1,\n          argsLength = args.length,\n          holdersLength = holders.length,\n          leftIndex = -1,\n          leftLength = partials.length,\n          rangeLength = nativeMax(argsLength - holdersLength, 0),\n          result = Array(leftLength + rangeLength),\n          isUncurried = !isCurried;\n\n      while (++leftIndex < leftLength) {\n        result[leftIndex] = partials[leftIndex];\n      }\n      while (++argsIndex < holdersLength) {\n        if (isUncurried || argsIndex < argsLength) {\n          result[holders[argsIndex]] = args[argsIndex];\n        }\n      }\n      while (rangeLength--) {\n        result[leftIndex++] = args[argsIndex++];\n      }\n      return result;\n    }\n\n    /**\n     * This function is like `composeArgs` except that the arguments composition\n     * is tailored for `_.partialRight`.\n     *\n     * @private\n     * @param {Array} args The provided arguments.\n     * @param {Array} partials The arguments to append to those provided.\n     * @param {Array} holders The `partials` placeholder indexes.\n     * @params {boolean} [isCurried] Specify composing for a curried function.\n     * @returns {Array} Returns the new array of composed arguments.\n     */\n    function composeArgsRight(args, partials, holders, isCurried) {\n      var argsIndex = -1,\n          argsLength = args.length,\n          holdersIndex = -1,\n          holdersLength = holders.length,\n          rightIndex = -1,\n          rightLength = partials.length,\n          rangeLength = nativeMax(argsLength - holdersLength, 0),\n          result = Array(rangeLength + rightLength),\n          isUncurried = !isCurried;\n\n      while (++argsIndex < rangeLength) {\n        result[argsIndex] = args[argsIndex];\n      }\n      var offset = argsIndex;\n      while (++rightIndex < rightLength) {\n        result[offset + rightIndex] = partials[rightIndex];\n      }\n      while (++holdersIndex < holdersLength) {\n        if (isUncurried || argsIndex < argsLength) {\n          result[offset + holders[holdersIndex]] = args[argsIndex++];\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Copies the values of `source` to `array`.\n     *\n     * @private\n     * @param {Array} source The array to copy values from.\n     * @param {Array} [array=[]] The array to copy values to.\n     * @returns {Array} Returns `array`.\n     */\n    function copyArray(source, array) {\n      var index = -1,\n          length = source.length;\n\n      array || (array = Array(length));\n      while (++index < length) {\n        array[index] = source[index];\n      }\n      return array;\n    }\n\n    /**\n     * Copies properties of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy properties from.\n     * @param {Array} props The property identifiers to copy.\n     * @param {Object} [object={}] The object to copy properties to.\n     * @param {Function} [customizer] The function to customize copied values.\n     * @returns {Object} Returns `object`.\n     */\n    function copyObject(source, props, object, customizer) {\n      var isNew = !object;\n      object || (object = {});\n\n      var index = -1,\n          length = props.length;\n\n      while (++index < length) {\n        var key = props[index];\n\n        var newValue = customizer\n          ? customizer(object[key], source[key], key, object, source)\n          : undefined;\n\n        if (newValue === undefined) {\n          newValue = source[key];\n        }\n        if (isNew) {\n          baseAssignValue(object, key, newValue);\n        } else {\n          assignValue(object, key, newValue);\n        }\n      }\n      return object;\n    }\n\n    /**\n     * Copies own symbols of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy symbols from.\n     * @param {Object} [object={}] The object to copy symbols to.\n     * @returns {Object} Returns `object`.\n     */\n    function copySymbols(source, object) {\n      return copyObject(source, getSymbols(source), object);\n    }\n\n    /**\n     * Copies own and inherited symbols of `source` to `object`.\n     *\n     * @private\n     * @param {Object} source The object to copy symbols from.\n     * @param {Object} [object={}] The object to copy symbols to.\n     * @returns {Object} Returns `object`.\n     */\n    function copySymbolsIn(source, object) {\n      return copyObject(source, getSymbolsIn(source), object);\n    }\n\n    /**\n     * Creates a function like `_.groupBy`.\n     *\n     * @private\n     * @param {Function} setter The function to set accumulator values.\n     * @param {Function} [initializer] The accumulator object initializer.\n     * @returns {Function} Returns the new aggregator function.\n     */\n    function createAggregator(setter, initializer) {\n      return function(collection, iteratee) {\n        var func = isArray(collection) ? arrayAggregator : baseAggregator,\n            accumulator = initializer ? initializer() : {};\n\n        return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n      };\n    }\n\n    /**\n     * Creates a function like `_.assign`.\n     *\n     * @private\n     * @param {Function} assigner The function to assign values.\n     * @returns {Function} Returns the new assigner function.\n     */\n    function createAssigner(assigner) {\n      return baseRest(function(object, sources) {\n        var index = -1,\n            length = sources.length,\n            customizer = length > 1 ? sources[length - 1] : undefined,\n            guard = length > 2 ? sources[2] : undefined;\n\n        customizer = (assigner.length > 3 && typeof customizer == 'function')\n          ? (length--, customizer)\n          : undefined;\n\n        if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n          customizer = length < 3 ? undefined : customizer;\n          length = 1;\n        }\n        object = Object(object);\n        while (++index < length) {\n          var source = sources[index];\n          if (source) {\n            assigner(object, source, index, customizer);\n          }\n        }\n        return object;\n      });\n    }\n\n    /**\n     * Creates a `baseEach` or `baseEachRight` function.\n     *\n     * @private\n     * @param {Function} eachFunc The function to iterate over a collection.\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new base function.\n     */\n    function createBaseEach(eachFunc, fromRight) {\n      return function(collection, iteratee) {\n        if (collection == null) {\n          return collection;\n        }\n        if (!isArrayLike(collection)) {\n          return eachFunc(collection, iteratee);\n        }\n        var length = collection.length,\n            index = fromRight ? length : -1,\n            iterable = Object(collection);\n\n        while ((fromRight ? index-- : ++index < length)) {\n          if (iteratee(iterable[index], index, iterable) === false) {\n            break;\n          }\n        }\n        return collection;\n      };\n    }\n\n    /**\n     * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new base function.\n     */\n    function createBaseFor(fromRight) {\n      return function(object, iteratee, keysFunc) {\n        var index = -1,\n            iterable = Object(object),\n            props = keysFunc(object),\n            length = props.length;\n\n        while (length--) {\n          var key = props[fromRight ? length : ++index];\n          if (iteratee(iterable[key], key, iterable) === false) {\n            break;\n          }\n        }\n        return object;\n      };\n    }\n\n    /**\n     * Creates a function that wraps `func` to invoke it with the optional `this`\n     * binding of `thisArg`.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createBind(func, bitmask, thisArg) {\n      var isBind = bitmask & WRAP_BIND_FLAG,\n          Ctor = createCtor(func);\n\n      function wrapper() {\n        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n        return fn.apply(isBind ? thisArg : this, arguments);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a function like `_.lowerFirst`.\n     *\n     * @private\n     * @param {string} methodName The name of the `String` case method to use.\n     * @returns {Function} Returns the new case function.\n     */\n    function createCaseFirst(methodName) {\n      return function(string) {\n        string = toString(string);\n\n        var strSymbols = hasUnicode(string)\n          ? stringToArray(string)\n          : undefined;\n\n        var chr = strSymbols\n          ? strSymbols[0]\n          : string.charAt(0);\n\n        var trailing = strSymbols\n          ? castSlice(strSymbols, 1).join('')\n          : string.slice(1);\n\n        return chr[methodName]() + trailing;\n      };\n    }\n\n    /**\n     * Creates a function like `_.camelCase`.\n     *\n     * @private\n     * @param {Function} callback The function to combine each word.\n     * @returns {Function} Returns the new compounder function.\n     */\n    function createCompounder(callback) {\n      return function(string) {\n        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n      };\n    }\n\n    /**\n     * Creates a function that produces an instance of `Ctor` regardless of\n     * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n     *\n     * @private\n     * @param {Function} Ctor The constructor to wrap.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createCtor(Ctor) {\n      return function() {\n        // Use a `switch` statement to work with class constructors. See\n        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n        // for more details.\n        var args = arguments;\n        switch (args.length) {\n          case 0: return new Ctor;\n          case 1: return new Ctor(args[0]);\n          case 2: return new Ctor(args[0], args[1]);\n          case 3: return new Ctor(args[0], args[1], args[2]);\n          case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n        }\n        var thisBinding = baseCreate(Ctor.prototype),\n            result = Ctor.apply(thisBinding, args);\n\n        // Mimic the constructor's `return` behavior.\n        // See https://es5.github.io/#x13.2.2 for more details.\n        return isObject(result) ? result : thisBinding;\n      };\n    }\n\n    /**\n     * Creates a function that wraps `func` to enable currying.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {number} arity The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createCurry(func, bitmask, arity) {\n      var Ctor = createCtor(func);\n\n      function wrapper() {\n        var length = arguments.length,\n            args = Array(length),\n            index = length,\n            placeholder = getHolder(wrapper);\n\n        while (index--) {\n          args[index] = arguments[index];\n        }\n        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n          ? []\n          : replaceHolders(args, placeholder);\n\n        length -= holders.length;\n        if (length < arity) {\n          return createRecurry(\n            func, bitmask, createHybrid, wrapper.placeholder, undefined,\n            args, holders, undefined, undefined, arity - length);\n        }\n        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n        return apply(fn, this, args);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a `_.find` or `_.findLast` function.\n     *\n     * @private\n     * @param {Function} findIndexFunc The function to find the collection index.\n     * @returns {Function} Returns the new find function.\n     */\n    function createFind(findIndexFunc) {\n      return function(collection, predicate, fromIndex) {\n        var iterable = Object(collection);\n        if (!isArrayLike(collection)) {\n          var iteratee = getIteratee(predicate, 3);\n          collection = keys(collection);\n          predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n        }\n        var index = findIndexFunc(collection, predicate, fromIndex);\n        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n      };\n    }\n\n    /**\n     * Creates a `_.flow` or `_.flowRight` function.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new flow function.\n     */\n    function createFlow(fromRight) {\n      return flatRest(function(funcs) {\n        var length = funcs.length,\n            index = length,\n            prereq = LodashWrapper.prototype.thru;\n\n        if (fromRight) {\n          funcs.reverse();\n        }\n        while (index--) {\n          var func = funcs[index];\n          if (typeof func != 'function') {\n            throw new TypeError(FUNC_ERROR_TEXT);\n          }\n          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n            var wrapper = new LodashWrapper([], true);\n          }\n        }\n        index = wrapper ? index : length;\n        while (++index < length) {\n          func = funcs[index];\n\n          var funcName = getFuncName(func),\n              data = funcName == 'wrapper' ? getData(func) : undefined;\n\n          if (data && isLaziable(data[0]) &&\n                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n                !data[4].length && data[9] == 1\n              ) {\n            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n          } else {\n            wrapper = (func.length == 1 && isLaziable(func))\n              ? wrapper[funcName]()\n              : wrapper.thru(func);\n          }\n        }\n        return function() {\n          var args = arguments,\n              value = args[0];\n\n          if (wrapper && args.length == 1 && isArray(value)) {\n            return wrapper.plant(value).value();\n          }\n          var index = 0,\n              result = length ? funcs[index].apply(this, args) : value;\n\n          while (++index < length) {\n            result = funcs[index].call(this, result);\n          }\n          return result;\n        };\n      });\n    }\n\n    /**\n     * Creates a function that wraps `func` to invoke it with optional `this`\n     * binding of `thisArg`, partial application, and currying.\n     *\n     * @private\n     * @param {Function|string} func The function or method name to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to prepend to those provided to\n     *  the new function.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [partialsRight] The arguments to append to those provided\n     *  to the new function.\n     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n      var isAry = bitmask & WRAP_ARY_FLAG,\n          isBind = bitmask & WRAP_BIND_FLAG,\n          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n          isFlip = bitmask & WRAP_FLIP_FLAG,\n          Ctor = isBindKey ? undefined : createCtor(func);\n\n      function wrapper() {\n        var length = arguments.length,\n            args = Array(length),\n            index = length;\n\n        while (index--) {\n          args[index] = arguments[index];\n        }\n        if (isCurried) {\n          var placeholder = getHolder(wrapper),\n              holdersCount = countHolders(args, placeholder);\n        }\n        if (partials) {\n          args = composeArgs(args, partials, holders, isCurried);\n        }\n        if (partialsRight) {\n          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n        }\n        length -= holdersCount;\n        if (isCurried && length < arity) {\n          var newHolders = replaceHolders(args, placeholder);\n          return createRecurry(\n            func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n            args, newHolders, argPos, ary, arity - length\n          );\n        }\n        var thisBinding = isBind ? thisArg : this,\n            fn = isBindKey ? thisBinding[func] : func;\n\n        length = args.length;\n        if (argPos) {\n          args = reorder(args, argPos);\n        } else if (isFlip && length > 1) {\n          args.reverse();\n        }\n        if (isAry && ary < length) {\n          args.length = ary;\n        }\n        if (this && this !== root && this instanceof wrapper) {\n          fn = Ctor || createCtor(fn);\n        }\n        return fn.apply(thisBinding, args);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a function like `_.invertBy`.\n     *\n     * @private\n     * @param {Function} setter The function to set accumulator values.\n     * @param {Function} toIteratee The function to resolve iteratees.\n     * @returns {Function} Returns the new inverter function.\n     */\n    function createInverter(setter, toIteratee) {\n      return function(object, iteratee) {\n        return baseInverter(object, setter, toIteratee(iteratee), {});\n      };\n    }\n\n    /**\n     * Creates a function that performs a mathematical operation on two values.\n     *\n     * @private\n     * @param {Function} operator The function to perform the operation.\n     * @param {number} [defaultValue] The value used for `undefined` arguments.\n     * @returns {Function} Returns the new mathematical operation function.\n     */\n    function createMathOperation(operator, defaultValue) {\n      return function(value, other) {\n        var result;\n        if (value === undefined && other === undefined) {\n          return defaultValue;\n        }\n        if (value !== undefined) {\n          result = value;\n        }\n        if (other !== undefined) {\n          if (result === undefined) {\n            return other;\n          }\n          if (typeof value == 'string' || typeof other == 'string') {\n            value = baseToString(value);\n            other = baseToString(other);\n          } else {\n            value = baseToNumber(value);\n            other = baseToNumber(other);\n          }\n          result = operator(value, other);\n        }\n        return result;\n      };\n    }\n\n    /**\n     * Creates a function like `_.over`.\n     *\n     * @private\n     * @param {Function} arrayFunc The function to iterate over iteratees.\n     * @returns {Function} Returns the new over function.\n     */\n    function createOver(arrayFunc) {\n      return flatRest(function(iteratees) {\n        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n        return baseRest(function(args) {\n          var thisArg = this;\n          return arrayFunc(iteratees, function(iteratee) {\n            return apply(iteratee, thisArg, args);\n          });\n        });\n      });\n    }\n\n    /**\n     * Creates the padding for `string` based on `length`. The `chars` string\n     * is truncated if the number of characters exceeds `length`.\n     *\n     * @private\n     * @param {number} length The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padding for `string`.\n     */\n    function createPadding(length, chars) {\n      chars = chars === undefined ? ' ' : baseToString(chars);\n\n      var charsLength = chars.length;\n      if (charsLength < 2) {\n        return charsLength ? baseRepeat(chars, length) : chars;\n      }\n      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n      return hasUnicode(chars)\n        ? castSlice(stringToArray(result), 0, length).join('')\n        : result.slice(0, length);\n    }\n\n    /**\n     * Creates a function that wraps `func` to invoke it with the `this` binding\n     * of `thisArg` and `partials` prepended to the arguments it receives.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {*} thisArg The `this` binding of `func`.\n     * @param {Array} partials The arguments to prepend to those provided to\n     *  the new function.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createPartial(func, bitmask, thisArg, partials) {\n      var isBind = bitmask & WRAP_BIND_FLAG,\n          Ctor = createCtor(func);\n\n      function wrapper() {\n        var argsIndex = -1,\n            argsLength = arguments.length,\n            leftIndex = -1,\n            leftLength = partials.length,\n            args = Array(leftLength + argsLength),\n            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n        while (++leftIndex < leftLength) {\n          args[leftIndex] = partials[leftIndex];\n        }\n        while (argsLength--) {\n          args[leftIndex++] = arguments[++argsIndex];\n        }\n        return apply(fn, isBind ? thisArg : this, args);\n      }\n      return wrapper;\n    }\n\n    /**\n     * Creates a `_.range` or `_.rangeRight` function.\n     *\n     * @private\n     * @param {boolean} [fromRight] Specify iterating from right to left.\n     * @returns {Function} Returns the new range function.\n     */\n    function createRange(fromRight) {\n      return function(start, end, step) {\n        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n          end = step = undefined;\n        }\n        // Ensure the sign of `-0` is preserved.\n        start = toFinite(start);\n        if (end === undefined) {\n          end = start;\n          start = 0;\n        } else {\n          end = toFinite(end);\n        }\n        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n        return baseRange(start, end, step, fromRight);\n      };\n    }\n\n    /**\n     * Creates a function that performs a relational operation on two values.\n     *\n     * @private\n     * @param {Function} operator The function to perform the operation.\n     * @returns {Function} Returns the new relational operation function.\n     */\n    function createRelationalOperation(operator) {\n      return function(value, other) {\n        if (!(typeof value == 'string' && typeof other == 'string')) {\n          value = toNumber(value);\n          other = toNumber(other);\n        }\n        return operator(value, other);\n      };\n    }\n\n    /**\n     * Creates a function that wraps `func` to continue currying.\n     *\n     * @private\n     * @param {Function} func The function to wrap.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @param {Function} wrapFunc The function to create the `func` wrapper.\n     * @param {*} placeholder The placeholder value.\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to prepend to those provided to\n     *  the new function.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n      var isCurry = bitmask & WRAP_CURRY_FLAG,\n          newHolders = isCurry ? holders : undefined,\n          newHoldersRight = isCurry ? undefined : holders,\n          newPartials = isCurry ? partials : undefined,\n          newPartialsRight = isCurry ? undefined : partials;\n\n      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n      }\n      var newData = [\n        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n        newHoldersRight, argPos, ary, arity\n      ];\n\n      var result = wrapFunc.apply(undefined, newData);\n      if (isLaziable(func)) {\n        setData(result, newData);\n      }\n      result.placeholder = placeholder;\n      return setWrapToString(result, func, bitmask);\n    }\n\n    /**\n     * Creates a function like `_.round`.\n     *\n     * @private\n     * @param {string} methodName The name of the `Math` method to use when rounding.\n     * @returns {Function} Returns the new round function.\n     */\n    function createRound(methodName) {\n      var func = Math[methodName];\n      return function(number, precision) {\n        number = toNumber(number);\n        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n        if (precision && nativeIsFinite(number)) {\n          // Shift with exponential notation to avoid floating-point issues.\n          // See [MDN](https://mdn.io/round#Examples) for more details.\n          var pair = (toString(number) + 'e').split('e'),\n              value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n          pair = (toString(value) + 'e').split('e');\n          return +(pair[0] + 'e' + (+pair[1] - precision));\n        }\n        return func(number);\n      };\n    }\n\n    /**\n     * Creates a set object of `values`.\n     *\n     * @private\n     * @param {Array} values The values to add to the set.\n     * @returns {Object} Returns the new set.\n     */\n    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n      return new Set(values);\n    };\n\n    /**\n     * Creates a `_.toPairs` or `_.toPairsIn` function.\n     *\n     * @private\n     * @param {Function} keysFunc The function to get the keys of a given object.\n     * @returns {Function} Returns the new pairs function.\n     */\n    function createToPairs(keysFunc) {\n      return function(object) {\n        var tag = getTag(object);\n        if (tag == mapTag) {\n          return mapToArray(object);\n        }\n        if (tag == setTag) {\n          return setToPairs(object);\n        }\n        return baseToPairs(object, keysFunc(object));\n      };\n    }\n\n    /**\n     * Creates a function that either curries or invokes `func` with optional\n     * `this` binding and partially applied arguments.\n     *\n     * @private\n     * @param {Function|string} func The function or method name to wrap.\n     * @param {number} bitmask The bitmask flags.\n     *    1 - `_.bind`\n     *    2 - `_.bindKey`\n     *    4 - `_.curry` or `_.curryRight` of a bound function\n     *    8 - `_.curry`\n     *   16 - `_.curryRight`\n     *   32 - `_.partial`\n     *   64 - `_.partialRight`\n     *  128 - `_.rearg`\n     *  256 - `_.ary`\n     *  512 - `_.flip`\n     * @param {*} [thisArg] The `this` binding of `func`.\n     * @param {Array} [partials] The arguments to be partially applied.\n     * @param {Array} [holders] The `partials` placeholder indexes.\n     * @param {Array} [argPos] The argument positions of the new function.\n     * @param {number} [ary] The arity cap of `func`.\n     * @param {number} [arity] The arity of `func`.\n     * @returns {Function} Returns the new wrapped function.\n     */\n    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n      if (!isBindKey && typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      var length = partials ? partials.length : 0;\n      if (!length) {\n        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n        partials = holders = undefined;\n      }\n      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n      arity = arity === undefined ? arity : toInteger(arity);\n      length -= holders ? holders.length : 0;\n\n      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n        var partialsRight = partials,\n            holdersRight = holders;\n\n        partials = holders = undefined;\n      }\n      var data = isBindKey ? undefined : getData(func);\n\n      var newData = [\n        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n        argPos, ary, arity\n      ];\n\n      if (data) {\n        mergeData(newData, data);\n      }\n      func = newData[0];\n      bitmask = newData[1];\n      thisArg = newData[2];\n      partials = newData[3];\n      holders = newData[4];\n      arity = newData[9] = newData[9] === undefined\n        ? (isBindKey ? 0 : func.length)\n        : nativeMax(newData[9] - length, 0);\n\n      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n      }\n      if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n        var result = createBind(func, bitmask, thisArg);\n      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n        result = createCurry(func, bitmask, arity);\n      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n        result = createPartial(func, bitmask, thisArg, partials);\n      } else {\n        result = createHybrid.apply(undefined, newData);\n      }\n      var setter = data ? baseSetData : setData;\n      return setWrapToString(setter(result, newData), func, bitmask);\n    }\n\n    /**\n     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n     * of source objects to the destination object for all destination properties\n     * that resolve to `undefined`.\n     *\n     * @private\n     * @param {*} objValue The destination value.\n     * @param {*} srcValue The source value.\n     * @param {string} key The key of the property to assign.\n     * @param {Object} object The parent object of `objValue`.\n     * @returns {*} Returns the value to assign.\n     */\n    function customDefaultsAssignIn(objValue, srcValue, key, object) {\n      if (objValue === undefined ||\n          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n        return srcValue;\n      }\n      return objValue;\n    }\n\n    /**\n     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n     * objects into destination objects that are passed thru.\n     *\n     * @private\n     * @param {*} objValue The destination value.\n     * @param {*} srcValue The source value.\n     * @param {string} key The key of the property to merge.\n     * @param {Object} object The parent object of `objValue`.\n     * @param {Object} source The parent object of `srcValue`.\n     * @param {Object} [stack] Tracks traversed source values and their merged\n     *  counterparts.\n     * @returns {*} Returns the value to assign.\n     */\n    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n      if (isObject(objValue) && isObject(srcValue)) {\n        // Recursively merge objects and arrays (susceptible to call stack limits).\n        stack.set(srcValue, objValue);\n        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n        stack['delete'](srcValue);\n      }\n      return objValue;\n    }\n\n    /**\n     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n     * objects.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @param {string} key The key of the property to inspect.\n     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n     */\n    function customOmitClone(value) {\n      return isPlainObject(value) ? undefined : value;\n    }\n\n    /**\n     * A specialized version of `baseIsEqualDeep` for arrays with support for\n     * partial deep comparisons.\n     *\n     * @private\n     * @param {Array} array The array to compare.\n     * @param {Array} other The other array to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `array` and `other` objects.\n     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n     */\n    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n          arrLength = array.length,\n          othLength = other.length;\n\n      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n        return false;\n      }\n      // Check that cyclic values are equal.\n      var arrStacked = stack.get(array);\n      var othStacked = stack.get(other);\n      if (arrStacked && othStacked) {\n        return arrStacked == other && othStacked == array;\n      }\n      var index = -1,\n          result = true,\n          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n      stack.set(array, other);\n      stack.set(other, array);\n\n      // Ignore non-index properties.\n      while (++index < arrLength) {\n        var arrValue = array[index],\n            othValue = other[index];\n\n        if (customizer) {\n          var compared = isPartial\n            ? customizer(othValue, arrValue, index, other, array, stack)\n            : customizer(arrValue, othValue, index, array, other, stack);\n        }\n        if (compared !== undefined) {\n          if (compared) {\n            continue;\n          }\n          result = false;\n          break;\n        }\n        // Recursively compare arrays (susceptible to call stack limits).\n        if (seen) {\n          if (!arraySome(other, function(othValue, othIndex) {\n                if (!cacheHas(seen, othIndex) &&\n                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n                  return seen.push(othIndex);\n                }\n              })) {\n            result = false;\n            break;\n          }\n        } else if (!(\n              arrValue === othValue ||\n                equalFunc(arrValue, othValue, bitmask, customizer, stack)\n            )) {\n          result = false;\n          break;\n        }\n      }\n      stack['delete'](array);\n      stack['delete'](other);\n      return result;\n    }\n\n    /**\n     * A specialized version of `baseIsEqualDeep` for comparing objects of\n     * the same `toStringTag`.\n     *\n     * **Note:** This function only supports comparing values with tags of\n     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {string} tag The `toStringTag` of the objects to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n      switch (tag) {\n        case dataViewTag:\n          if ((object.byteLength != other.byteLength) ||\n              (object.byteOffset != other.byteOffset)) {\n            return false;\n          }\n          object = object.buffer;\n          other = other.buffer;\n\n        case arrayBufferTag:\n          if ((object.byteLength != other.byteLength) ||\n              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n            return false;\n          }\n          return true;\n\n        case boolTag:\n        case dateTag:\n        case numberTag:\n          // Coerce booleans to `1` or `0` and dates to milliseconds.\n          // Invalid dates are coerced to `NaN`.\n          return eq(+object, +other);\n\n        case errorTag:\n          return object.name == other.name && object.message == other.message;\n\n        case regexpTag:\n        case stringTag:\n          // Coerce regexes to strings and treat strings, primitives and objects,\n          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n          // for more details.\n          return object == (other + '');\n\n        case mapTag:\n          var convert = mapToArray;\n\n        case setTag:\n          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n          convert || (convert = setToArray);\n\n          if (object.size != other.size && !isPartial) {\n            return false;\n          }\n          // Assume cyclic values are equal.\n          var stacked = stack.get(object);\n          if (stacked) {\n            return stacked == other;\n          }\n          bitmask |= COMPARE_UNORDERED_FLAG;\n\n          // Recursively compare objects (susceptible to call stack limits).\n          stack.set(object, other);\n          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n          stack['delete'](object);\n          return result;\n\n        case symbolTag:\n          if (symbolValueOf) {\n            return symbolValueOf.call(object) == symbolValueOf.call(other);\n          }\n      }\n      return false;\n    }\n\n    /**\n     * A specialized version of `baseIsEqualDeep` for objects with support for\n     * partial deep comparisons.\n     *\n     * @private\n     * @param {Object} object The object to compare.\n     * @param {Object} other The other object to compare.\n     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n     * @param {Function} customizer The function to customize comparisons.\n     * @param {Function} equalFunc The function to determine equivalents of values.\n     * @param {Object} stack Tracks traversed `object` and `other` objects.\n     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n     */\n    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n          objProps = getAllKeys(object),\n          objLength = objProps.length,\n          othProps = getAllKeys(other),\n          othLength = othProps.length;\n\n      if (objLength != othLength && !isPartial) {\n        return false;\n      }\n      var index = objLength;\n      while (index--) {\n        var key = objProps[index];\n        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n          return false;\n        }\n      }\n      // Check that cyclic values are equal.\n      var objStacked = stack.get(object);\n      var othStacked = stack.get(other);\n      if (objStacked && othStacked) {\n        return objStacked == other && othStacked == object;\n      }\n      var result = true;\n      stack.set(object, other);\n      stack.set(other, object);\n\n      var skipCtor = isPartial;\n      while (++index < objLength) {\n        key = objProps[index];\n        var objValue = object[key],\n            othValue = other[key];\n\n        if (customizer) {\n          var compared = isPartial\n            ? customizer(othValue, objValue, key, other, object, stack)\n            : customizer(objValue, othValue, key, object, other, stack);\n        }\n        // Recursively compare objects (susceptible to call stack limits).\n        if (!(compared === undefined\n              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n              : compared\n            )) {\n          result = false;\n          break;\n        }\n        skipCtor || (skipCtor = key == 'constructor');\n      }\n      if (result && !skipCtor) {\n        var objCtor = object.constructor,\n            othCtor = other.constructor;\n\n        // Non `Object` object instances with different constructors are not equal.\n        if (objCtor != othCtor &&\n            ('constructor' in object && 'constructor' in other) &&\n            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n              typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n          result = false;\n        }\n      }\n      stack['delete'](object);\n      stack['delete'](other);\n      return result;\n    }\n\n    /**\n     * A specialized version of `baseRest` which flattens the rest array.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @returns {Function} Returns the new function.\n     */\n    function flatRest(func) {\n      return setToString(overRest(func, undefined, flatten), func + '');\n    }\n\n    /**\n     * Creates an array of own enumerable property names and symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n    function getAllKeys(object) {\n      return baseGetAllKeys(object, keys, getSymbols);\n    }\n\n    /**\n     * Creates an array of own and inherited enumerable property names and\n     * symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names and symbols.\n     */\n    function getAllKeysIn(object) {\n      return baseGetAllKeys(object, keysIn, getSymbolsIn);\n    }\n\n    /**\n     * Gets metadata for `func`.\n     *\n     * @private\n     * @param {Function} func The function to query.\n     * @returns {*} Returns the metadata for `func`.\n     */\n    var getData = !metaMap ? noop : function(func) {\n      return metaMap.get(func);\n    };\n\n    /**\n     * Gets the name of `func`.\n     *\n     * @private\n     * @param {Function} func The function to query.\n     * @returns {string} Returns the function name.\n     */\n    function getFuncName(func) {\n      var result = (func.name + ''),\n          array = realNames[result],\n          length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n      while (length--) {\n        var data = array[length],\n            otherFunc = data.func;\n        if (otherFunc == null || otherFunc == func) {\n          return data.name;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Gets the argument placeholder value for `func`.\n     *\n     * @private\n     * @param {Function} func The function to inspect.\n     * @returns {*} Returns the placeholder value.\n     */\n    function getHolder(func) {\n      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n      return object.placeholder;\n    }\n\n    /**\n     * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n     * this function returns the custom method, otherwise it returns `baseIteratee`.\n     * If arguments are provided, the chosen function is invoked with them and\n     * its result is returned.\n     *\n     * @private\n     * @param {*} [value] The value to convert to an iteratee.\n     * @param {number} [arity] The arity of the created iteratee.\n     * @returns {Function} Returns the chosen function or its result.\n     */\n    function getIteratee() {\n      var result = lodash.iteratee || iteratee;\n      result = result === iteratee ? baseIteratee : result;\n      return arguments.length ? result(arguments[0], arguments[1]) : result;\n    }\n\n    /**\n     * Gets the data for `map`.\n     *\n     * @private\n     * @param {Object} map The map to query.\n     * @param {string} key The reference key.\n     * @returns {*} Returns the map data.\n     */\n    function getMapData(map, key) {\n      var data = map.__data__;\n      return isKeyable(key)\n        ? data[typeof key == 'string' ? 'string' : 'hash']\n        : data.map;\n    }\n\n    /**\n     * Gets the property names, values, and compare flags of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the match data of `object`.\n     */\n    function getMatchData(object) {\n      var result = keys(object),\n          length = result.length;\n\n      while (length--) {\n        var key = result[length],\n            value = object[key];\n\n        result[length] = [key, value, isStrictComparable(value)];\n      }\n      return result;\n    }\n\n    /**\n     * Gets the native function at `key` of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {string} key The key of the method to get.\n     * @returns {*} Returns the function if it's native, else `undefined`.\n     */\n    function getNative(object, key) {\n      var value = getValue(object, key);\n      return baseIsNative(value) ? value : undefined;\n    }\n\n    /**\n     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the raw `toStringTag`.\n     */\n    function getRawTag(value) {\n      var isOwn = hasOwnProperty.call(value, symToStringTag),\n          tag = value[symToStringTag];\n\n      try {\n        value[symToStringTag] = undefined;\n        var unmasked = true;\n      } catch (e) {}\n\n      var result = nativeObjectToString.call(value);\n      if (unmasked) {\n        if (isOwn) {\n          value[symToStringTag] = tag;\n        } else {\n          delete value[symToStringTag];\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Creates an array of the own enumerable symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of symbols.\n     */\n    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n      if (object == null) {\n        return [];\n      }\n      object = Object(object);\n      return arrayFilter(nativeGetSymbols(object), function(symbol) {\n        return propertyIsEnumerable.call(object, symbol);\n      });\n    };\n\n    /**\n     * Creates an array of the own and inherited enumerable symbols of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of symbols.\n     */\n    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n      var result = [];\n      while (object) {\n        arrayPush(result, getSymbols(object));\n        object = getPrototype(object);\n      }\n      return result;\n    };\n\n    /**\n     * Gets the `toStringTag` of `value`.\n     *\n     * @private\n     * @param {*} value The value to query.\n     * @returns {string} Returns the `toStringTag`.\n     */\n    var getTag = baseGetTag;\n\n    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n        (Map && getTag(new Map) != mapTag) ||\n        (Promise && getTag(Promise.resolve()) != promiseTag) ||\n        (Set && getTag(new Set) != setTag) ||\n        (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n      getTag = function(value) {\n        var result = baseGetTag(value),\n            Ctor = result == objectTag ? value.constructor : undefined,\n            ctorString = Ctor ? toSource(Ctor) : '';\n\n        if (ctorString) {\n          switch (ctorString) {\n            case dataViewCtorString: return dataViewTag;\n            case mapCtorString: return mapTag;\n            case promiseCtorString: return promiseTag;\n            case setCtorString: return setTag;\n            case weakMapCtorString: return weakMapTag;\n          }\n        }\n        return result;\n      };\n    }\n\n    /**\n     * Gets the view, applying any `transforms` to the `start` and `end` positions.\n     *\n     * @private\n     * @param {number} start The start of the view.\n     * @param {number} end The end of the view.\n     * @param {Array} transforms The transformations to apply to the view.\n     * @returns {Object} Returns an object containing the `start` and `end`\n     *  positions of the view.\n     */\n    function getView(start, end, transforms) {\n      var index = -1,\n          length = transforms.length;\n\n      while (++index < length) {\n        var data = transforms[index],\n            size = data.size;\n\n        switch (data.type) {\n          case 'drop':      start += size; break;\n          case 'dropRight': end -= size; break;\n          case 'take':      end = nativeMin(end, start + size); break;\n          case 'takeRight': start = nativeMax(start, end - size); break;\n        }\n      }\n      return { 'start': start, 'end': end };\n    }\n\n    /**\n     * Extracts wrapper details from the `source` body comment.\n     *\n     * @private\n     * @param {string} source The source to inspect.\n     * @returns {Array} Returns the wrapper details.\n     */\n    function getWrapDetails(source) {\n      var match = source.match(reWrapDetails);\n      return match ? match[1].split(reSplitDetails) : [];\n    }\n\n    /**\n     * Checks if `path` exists on `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @param {Function} hasFunc The function to check properties.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     */\n    function hasPath(object, path, hasFunc) {\n      path = castPath(path, object);\n\n      var index = -1,\n          length = path.length,\n          result = false;\n\n      while (++index < length) {\n        var key = toKey(path[index]);\n        if (!(result = object != null && hasFunc(object, key))) {\n          break;\n        }\n        object = object[key];\n      }\n      if (result || ++index != length) {\n        return result;\n      }\n      length = object == null ? 0 : object.length;\n      return !!length && isLength(length) && isIndex(key, length) &&\n        (isArray(object) || isArguments(object));\n    }\n\n    /**\n     * Initializes an array clone.\n     *\n     * @private\n     * @param {Array} array The array to clone.\n     * @returns {Array} Returns the initialized clone.\n     */\n    function initCloneArray(array) {\n      var length = array.length,\n          result = new array.constructor(length);\n\n      // Add properties assigned by `RegExp#exec`.\n      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n        result.index = array.index;\n        result.input = array.input;\n      }\n      return result;\n    }\n\n    /**\n     * Initializes an object clone.\n     *\n     * @private\n     * @param {Object} object The object to clone.\n     * @returns {Object} Returns the initialized clone.\n     */\n    function initCloneObject(object) {\n      return (typeof object.constructor == 'function' && !isPrototype(object))\n        ? baseCreate(getPrototype(object))\n        : {};\n    }\n\n    /**\n     * Initializes an object clone based on its `toStringTag`.\n     *\n     * **Note:** This function only supports cloning values with tags of\n     * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n     *\n     * @private\n     * @param {Object} object The object to clone.\n     * @param {string} tag The `toStringTag` of the object to clone.\n     * @param {boolean} [isDeep] Specify a deep clone.\n     * @returns {Object} Returns the initialized clone.\n     */\n    function initCloneByTag(object, tag, isDeep) {\n      var Ctor = object.constructor;\n      switch (tag) {\n        case arrayBufferTag:\n          return cloneArrayBuffer(object);\n\n        case boolTag:\n        case dateTag:\n          return new Ctor(+object);\n\n        case dataViewTag:\n          return cloneDataView(object, isDeep);\n\n        case float32Tag: case float64Tag:\n        case int8Tag: case int16Tag: case int32Tag:\n        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n          return cloneTypedArray(object, isDeep);\n\n        case mapTag:\n          return new Ctor;\n\n        case numberTag:\n        case stringTag:\n          return new Ctor(object);\n\n        case regexpTag:\n          return cloneRegExp(object);\n\n        case setTag:\n          return new Ctor;\n\n        case symbolTag:\n          return cloneSymbol(object);\n      }\n    }\n\n    /**\n     * Inserts wrapper `details` in a comment at the top of the `source` body.\n     *\n     * @private\n     * @param {string} source The source to modify.\n     * @returns {Array} details The details to insert.\n     * @returns {string} Returns the modified source.\n     */\n    function insertWrapDetails(source, details) {\n      var length = details.length;\n      if (!length) {\n        return source;\n      }\n      var lastIndex = length - 1;\n      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n      details = details.join(length > 2 ? ', ' : ' ');\n      return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n    }\n\n    /**\n     * Checks if `value` is a flattenable `arguments` object or array.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n     */\n    function isFlattenable(value) {\n      return isArray(value) || isArguments(value) ||\n        !!(spreadableSymbol && value && value[spreadableSymbol]);\n    }\n\n    /**\n     * Checks if `value` is a valid array-like index.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n     */\n    function isIndex(value, length) {\n      var type = typeof value;\n      length = length == null ? MAX_SAFE_INTEGER : length;\n\n      return !!length &&\n        (type == 'number' ||\n          (type != 'symbol' && reIsUint.test(value))) &&\n            (value > -1 && value % 1 == 0 && value < length);\n    }\n\n    /**\n     * Checks if the given arguments are from an iteratee call.\n     *\n     * @private\n     * @param {*} value The potential iteratee value argument.\n     * @param {*} index The potential iteratee index or key argument.\n     * @param {*} object The potential iteratee object argument.\n     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n     *  else `false`.\n     */\n    function isIterateeCall(value, index, object) {\n      if (!isObject(object)) {\n        return false;\n      }\n      var type = typeof index;\n      if (type == 'number'\n            ? (isArrayLike(object) && isIndex(index, object.length))\n            : (type == 'string' && index in object)\n          ) {\n        return eq(object[index], value);\n      }\n      return false;\n    }\n\n    /**\n     * Checks if `value` is a property name and not a property path.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @param {Object} [object] The object to query keys on.\n     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n     */\n    function isKey(value, object) {\n      if (isArray(value)) {\n        return false;\n      }\n      var type = typeof value;\n      if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n          value == null || isSymbol(value)) {\n        return true;\n      }\n      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n        (object != null && value in Object(object));\n    }\n\n    /**\n     * Checks if `value` is suitable for use as unique object key.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n     */\n    function isKeyable(value) {\n      var type = typeof value;\n      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n        ? (value !== '__proto__')\n        : (value === null);\n    }\n\n    /**\n     * Checks if `func` has a lazy counterpart.\n     *\n     * @private\n     * @param {Function} func The function to check.\n     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n     *  else `false`.\n     */\n    function isLaziable(func) {\n      var funcName = getFuncName(func),\n          other = lodash[funcName];\n\n      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n        return false;\n      }\n      if (func === other) {\n        return true;\n      }\n      var data = getData(other);\n      return !!data && func === data[0];\n    }\n\n    /**\n     * Checks if `func` has its source masked.\n     *\n     * @private\n     * @param {Function} func The function to check.\n     * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n     */\n    function isMasked(func) {\n      return !!maskSrcKey && (maskSrcKey in func);\n    }\n\n    /**\n     * Checks if `func` is capable of being masked.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n     */\n    var isMaskable = coreJsData ? isFunction : stubFalse;\n\n    /**\n     * Checks if `value` is likely a prototype object.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n     */\n    function isPrototype(value) {\n      var Ctor = value && value.constructor,\n          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n      return value === proto;\n    }\n\n    /**\n     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n     *\n     * @private\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` if suitable for strict\n     *  equality comparisons, else `false`.\n     */\n    function isStrictComparable(value) {\n      return value === value && !isObject(value);\n    }\n\n    /**\n     * A specialized version of `matchesProperty` for source values suitable\n     * for strict equality comparisons, i.e. `===`.\n     *\n     * @private\n     * @param {string} key The key of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     */\n    function matchesStrictComparable(key, srcValue) {\n      return function(object) {\n        if (object == null) {\n          return false;\n        }\n        return object[key] === srcValue &&\n          (srcValue !== undefined || (key in Object(object)));\n      };\n    }\n\n    /**\n     * A specialized version of `_.memoize` which clears the memoized function's\n     * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n     *\n     * @private\n     * @param {Function} func The function to have its output memoized.\n     * @returns {Function} Returns the new memoized function.\n     */\n    function memoizeCapped(func) {\n      var result = memoize(func, function(key) {\n        if (cache.size === MAX_MEMOIZE_SIZE) {\n          cache.clear();\n        }\n        return key;\n      });\n\n      var cache = result.cache;\n      return result;\n    }\n\n    /**\n     * Merges the function metadata of `source` into `data`.\n     *\n     * Merging metadata reduces the number of wrappers used to invoke a function.\n     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n     * may be applied regardless of execution order. Methods like `_.ary` and\n     * `_.rearg` modify function arguments, making the order in which they are\n     * executed important, preventing the merging of metadata. However, we make\n     * an exception for a safe combined case where curried functions have `_.ary`\n     * and or `_.rearg` applied.\n     *\n     * @private\n     * @param {Array} data The destination metadata.\n     * @param {Array} source The source metadata.\n     * @returns {Array} Returns `data`.\n     */\n    function mergeData(data, source) {\n      var bitmask = data[1],\n          srcBitmask = source[1],\n          newBitmask = bitmask | srcBitmask,\n          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n      var isCombo =\n        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n      // Exit early if metadata can't be merged.\n      if (!(isCommon || isCombo)) {\n        return data;\n      }\n      // Use source `thisArg` if available.\n      if (srcBitmask & WRAP_BIND_FLAG) {\n        data[2] = source[2];\n        // Set when currying a bound function.\n        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n      }\n      // Compose partial arguments.\n      var value = source[3];\n      if (value) {\n        var partials = data[3];\n        data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n      }\n      // Compose partial right arguments.\n      value = source[5];\n      if (value) {\n        partials = data[5];\n        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n      }\n      // Use source `argPos` if available.\n      value = source[7];\n      if (value) {\n        data[7] = value;\n      }\n      // Use source `ary` if it's smaller.\n      if (srcBitmask & WRAP_ARY_FLAG) {\n        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n      }\n      // Use source `arity` if one is not provided.\n      if (data[9] == null) {\n        data[9] = source[9];\n      }\n      // Use source `func` and merge bitmasks.\n      data[0] = source[0];\n      data[1] = newBitmask;\n\n      return data;\n    }\n\n    /**\n     * This function is like\n     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n     * except that it includes inherited enumerable properties.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     */\n    function nativeKeysIn(object) {\n      var result = [];\n      if (object != null) {\n        for (var key in Object(object)) {\n          result.push(key);\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Converts `value` to a string using `Object.prototype.toString`.\n     *\n     * @private\n     * @param {*} value The value to convert.\n     * @returns {string} Returns the converted string.\n     */\n    function objectToString(value) {\n      return nativeObjectToString.call(value);\n    }\n\n    /**\n     * A specialized version of `baseRest` which transforms the rest array.\n     *\n     * @private\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @param {Function} transform The rest array transform.\n     * @returns {Function} Returns the new function.\n     */\n    function overRest(func, start, transform) {\n      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n      return function() {\n        var args = arguments,\n            index = -1,\n            length = nativeMax(args.length - start, 0),\n            array = Array(length);\n\n        while (++index < length) {\n          array[index] = args[start + index];\n        }\n        index = -1;\n        var otherArgs = Array(start + 1);\n        while (++index < start) {\n          otherArgs[index] = args[index];\n        }\n        otherArgs[start] = transform(array);\n        return apply(func, this, otherArgs);\n      };\n    }\n\n    /**\n     * Gets the parent value at `path` of `object`.\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {Array} path The path to get the parent value of.\n     * @returns {*} Returns the parent value.\n     */\n    function parent(object, path) {\n      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n    }\n\n    /**\n     * Reorder `array` according to the specified indexes where the element at\n     * the first index is assigned as the first element, the element at\n     * the second index is assigned as the second element, and so on.\n     *\n     * @private\n     * @param {Array} array The array to reorder.\n     * @param {Array} indexes The arranged array indexes.\n     * @returns {Array} Returns `array`.\n     */\n    function reorder(array, indexes) {\n      var arrLength = array.length,\n          length = nativeMin(indexes.length, arrLength),\n          oldArray = copyArray(array);\n\n      while (length--) {\n        var index = indexes[length];\n        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n      }\n      return array;\n    }\n\n    /**\n     * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n     *\n     * @private\n     * @param {Object} object The object to query.\n     * @param {string} key The key of the property to get.\n     * @returns {*} Returns the property value.\n     */\n    function safeGet(object, key) {\n      if (key === 'constructor' && typeof object[key] === 'function') {\n        return;\n      }\n\n      if (key == '__proto__') {\n        return;\n      }\n\n      return object[key];\n    }\n\n    /**\n     * Sets metadata for `func`.\n     *\n     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n     * period of time, it will trip its breaker and transition to an identity\n     * function to avoid garbage collection pauses in V8. See\n     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n     * for more details.\n     *\n     * @private\n     * @param {Function} func The function to associate metadata with.\n     * @param {*} data The metadata.\n     * @returns {Function} Returns `func`.\n     */\n    var setData = shortOut(baseSetData);\n\n    /**\n     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n     *\n     * @private\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @returns {number|Object} Returns the timer id or timeout object.\n     */\n    var setTimeout = ctxSetTimeout || function(func, wait) {\n      return root.setTimeout(func, wait);\n    };\n\n    /**\n     * Sets the `toString` method of `func` to return `string`.\n     *\n     * @private\n     * @param {Function} func The function to modify.\n     * @param {Function} string The `toString` result.\n     * @returns {Function} Returns `func`.\n     */\n    var setToString = shortOut(baseSetToString);\n\n    /**\n     * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n     * with wrapper details in a comment at the top of the source body.\n     *\n     * @private\n     * @param {Function} wrapper The function to modify.\n     * @param {Function} reference The reference function.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @returns {Function} Returns `wrapper`.\n     */\n    function setWrapToString(wrapper, reference, bitmask) {\n      var source = (reference + '');\n      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n    }\n\n    /**\n     * Creates a function that'll short out and invoke `identity` instead\n     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n     * milliseconds.\n     *\n     * @private\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new shortable function.\n     */\n    function shortOut(func) {\n      var count = 0,\n          lastCalled = 0;\n\n      return function() {\n        var stamp = nativeNow(),\n            remaining = HOT_SPAN - (stamp - lastCalled);\n\n        lastCalled = stamp;\n        if (remaining > 0) {\n          if (++count >= HOT_COUNT) {\n            return arguments[0];\n          }\n        } else {\n          count = 0;\n        }\n        return func.apply(undefined, arguments);\n      };\n    }\n\n    /**\n     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n     *\n     * @private\n     * @param {Array} array The array to shuffle.\n     * @param {number} [size=array.length] The size of `array`.\n     * @returns {Array} Returns `array`.\n     */\n    function shuffleSelf(array, size) {\n      var index = -1,\n          length = array.length,\n          lastIndex = length - 1;\n\n      size = size === undefined ? length : size;\n      while (++index < size) {\n        var rand = baseRandom(index, lastIndex),\n            value = array[rand];\n\n        array[rand] = array[index];\n        array[index] = value;\n      }\n      array.length = size;\n      return array;\n    }\n\n    /**\n     * Converts `string` to a property path array.\n     *\n     * @private\n     * @param {string} string The string to convert.\n     * @returns {Array} Returns the property path array.\n     */\n    var stringToPath = memoizeCapped(function(string) {\n      var result = [];\n      if (string.charCodeAt(0) === 46 /* . */) {\n        result.push('');\n      }\n      string.replace(rePropName, function(match, number, quote, subString) {\n        result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n      });\n      return result;\n    });\n\n    /**\n     * Converts `value` to a string key if it's not a string or symbol.\n     *\n     * @private\n     * @param {*} value The value to inspect.\n     * @returns {string|symbol} Returns the key.\n     */\n    function toKey(value) {\n      if (typeof value == 'string' || isSymbol(value)) {\n        return value;\n      }\n      var result = (value + '');\n      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n    }\n\n    /**\n     * Converts `func` to its source code.\n     *\n     * @private\n     * @param {Function} func The function to convert.\n     * @returns {string} Returns the source code.\n     */\n    function toSource(func) {\n      if (func != null) {\n        try {\n          return funcToString.call(func);\n        } catch (e) {}\n        try {\n          return (func + '');\n        } catch (e) {}\n      }\n      return '';\n    }\n\n    /**\n     * Updates wrapper `details` based on `bitmask` flags.\n     *\n     * @private\n     * @returns {Array} details The details to modify.\n     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n     * @returns {Array} Returns `details`.\n     */\n    function updateWrapDetails(details, bitmask) {\n      arrayEach(wrapFlags, function(pair) {\n        var value = '_.' + pair[0];\n        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n          details.push(value);\n        }\n      });\n      return details.sort();\n    }\n\n    /**\n     * Creates a clone of `wrapper`.\n     *\n     * @private\n     * @param {Object} wrapper The wrapper to clone.\n     * @returns {Object} Returns the cloned wrapper.\n     */\n    function wrapperClone(wrapper) {\n      if (wrapper instanceof LazyWrapper) {\n        return wrapper.clone();\n      }\n      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n      result.__actions__ = copyArray(wrapper.__actions__);\n      result.__index__  = wrapper.__index__;\n      result.__values__ = wrapper.__values__;\n      return result;\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an array of elements split into groups the length of `size`.\n     * If `array` can't be split evenly, the final chunk will be the remaining\n     * elements.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to process.\n     * @param {number} [size=1] The length of each chunk\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the new array of chunks.\n     * @example\n     *\n     * _.chunk(['a', 'b', 'c', 'd'], 2);\n     * // => [['a', 'b'], ['c', 'd']]\n     *\n     * _.chunk(['a', 'b', 'c', 'd'], 3);\n     * // => [['a', 'b', 'c'], ['d']]\n     */\n    function chunk(array, size, guard) {\n      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n        size = 1;\n      } else {\n        size = nativeMax(toInteger(size), 0);\n      }\n      var length = array == null ? 0 : array.length;\n      if (!length || size < 1) {\n        return [];\n      }\n      var index = 0,\n          resIndex = 0,\n          result = Array(nativeCeil(length / size));\n\n      while (index < length) {\n        result[resIndex++] = baseSlice(array, index, (index += size));\n      }\n      return result;\n    }\n\n    /**\n     * Creates an array with all falsey values removed. The values `false`, `null`,\n     * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to compact.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.compact([0, 1, false, 2, '', 3]);\n     * // => [1, 2, 3]\n     */\n    function compact(array) {\n      var index = -1,\n          length = array == null ? 0 : array.length,\n          resIndex = 0,\n          result = [];\n\n      while (++index < length) {\n        var value = array[index];\n        if (value) {\n          result[resIndex++] = value;\n        }\n      }\n      return result;\n    }\n\n    /**\n     * Creates a new array concatenating `array` with any additional arrays\n     * and/or values.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to concatenate.\n     * @param {...*} [values] The values to concatenate.\n     * @returns {Array} Returns the new concatenated array.\n     * @example\n     *\n     * var array = [1];\n     * var other = _.concat(array, 2, [3], [[4]]);\n     *\n     * console.log(other);\n     * // => [1, 2, 3, [4]]\n     *\n     * console.log(array);\n     * // => [1]\n     */\n    function concat() {\n      var length = arguments.length;\n      if (!length) {\n        return [];\n      }\n      var args = Array(length - 1),\n          array = arguments[0],\n          index = length;\n\n      while (index--) {\n        args[index - 1] = arguments[index];\n      }\n      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n    }\n\n    /**\n     * Creates an array of `array` values not included in the other given arrays\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. The order and references of result values are\n     * determined by the first array.\n     *\n     * **Note:** Unlike `_.pullAll`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.without, _.xor\n     * @example\n     *\n     * _.difference([2, 1], [2, 3]);\n     * // => [1]\n     */\n    var difference = baseRest(function(array, values) {\n      return isArrayLikeObject(array)\n        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n        : [];\n    });\n\n    /**\n     * This method is like `_.difference` except that it accepts `iteratee` which\n     * is invoked for each element of `array` and `values` to generate the criterion\n     * by which they're compared. The order and references of result values are\n     * determined by the first array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n     * // => [{ 'x': 2 }]\n     */\n    var differenceBy = baseRest(function(array, values) {\n      var iteratee = last(values);\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n      return isArrayLikeObject(array)\n        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n        : [];\n    });\n\n    /**\n     * This method is like `_.difference` except that it accepts `comparator`\n     * which is invoked to compare elements of `array` to `values`. The order and\n     * references of result values are determined by the first array. The comparator\n     * is invoked with two arguments: (arrVal, othVal).\n     *\n     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...Array} [values] The values to exclude.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     *\n     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n     * // => [{ 'x': 2, 'y': 1 }]\n     */\n    var differenceWith = baseRest(function(array, values) {\n      var comparator = last(values);\n      if (isArrayLikeObject(comparator)) {\n        comparator = undefined;\n      }\n      return isArrayLikeObject(array)\n        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n        : [];\n    });\n\n    /**\n     * Creates a slice of `array` with `n` elements dropped from the beginning.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to drop.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.drop([1, 2, 3]);\n     * // => [2, 3]\n     *\n     * _.drop([1, 2, 3], 2);\n     * // => [3]\n     *\n     * _.drop([1, 2, 3], 5);\n     * // => []\n     *\n     * _.drop([1, 2, 3], 0);\n     * // => [1, 2, 3]\n     */\n    function drop(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      return baseSlice(array, n < 0 ? 0 : n, length);\n    }\n\n    /**\n     * Creates a slice of `array` with `n` elements dropped from the end.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to drop.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.dropRight([1, 2, 3]);\n     * // => [1, 2]\n     *\n     * _.dropRight([1, 2, 3], 2);\n     * // => [1]\n     *\n     * _.dropRight([1, 2, 3], 5);\n     * // => []\n     *\n     * _.dropRight([1, 2, 3], 0);\n     * // => [1, 2, 3]\n     */\n    function dropRight(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      n = length - n;\n      return baseSlice(array, 0, n < 0 ? 0 : n);\n    }\n\n    /**\n     * Creates a slice of `array` excluding elements dropped from the end.\n     * Elements are dropped until `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.dropRightWhile(users, function(o) { return !o.active; });\n     * // => objects for ['barney']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.dropRightWhile(users, ['active', false]);\n     * // => objects for ['barney']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.dropRightWhile(users, 'active');\n     * // => objects for ['barney', 'fred', 'pebbles']\n     */\n    function dropRightWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3), true, true)\n        : [];\n    }\n\n    /**\n     * Creates a slice of `array` excluding elements dropped from the beginning.\n     * Elements are dropped until `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.dropWhile(users, function(o) { return !o.active; });\n     * // => objects for ['pebbles']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.dropWhile(users, { 'user': 'barney', 'active': false });\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.dropWhile(users, ['active', false]);\n     * // => objects for ['pebbles']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.dropWhile(users, 'active');\n     * // => objects for ['barney', 'fred', 'pebbles']\n     */\n    function dropWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3), true)\n        : [];\n    }\n\n    /**\n     * Fills elements of `array` with `value` from `start` up to, but not\n     * including, `end`.\n     *\n     * **Note:** This method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Array\n     * @param {Array} array The array to fill.\n     * @param {*} value The value to fill `array` with.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _.fill(array, 'a');\n     * console.log(array);\n     * // => ['a', 'a', 'a']\n     *\n     * _.fill(Array(3), 2);\n     * // => [2, 2, 2]\n     *\n     * _.fill([4, 6, 8, 10], '*', 1, 3);\n     * // => [4, '*', '*', 10]\n     */\n    function fill(array, value, start, end) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n        start = 0;\n        end = length;\n      }\n      return baseFill(array, value, start, end);\n    }\n\n    /**\n     * This method is like `_.find` except that it returns the index of the first\n     * element `predicate` returns truthy for instead of the element itself.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {number} Returns the index of the found element, else `-1`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.findIndex(users, function(o) { return o.user == 'barney'; });\n     * // => 0\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findIndex(users, { 'user': 'fred', 'active': false });\n     * // => 1\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findIndex(users, ['active', false]);\n     * // => 0\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findIndex(users, 'active');\n     * // => 2\n     */\n    function findIndex(array, predicate, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = fromIndex == null ? 0 : toInteger(fromIndex);\n      if (index < 0) {\n        index = nativeMax(length + index, 0);\n      }\n      return baseFindIndex(array, getIteratee(predicate, 3), index);\n    }\n\n    /**\n     * This method is like `_.findIndex` except that it iterates over elements\n     * of `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=array.length-1] The index to search from.\n     * @returns {number} Returns the index of the found element, else `-1`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n     * // => 2\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n     * // => 0\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findLastIndex(users, ['active', false]);\n     * // => 2\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findLastIndex(users, 'active');\n     * // => 0\n     */\n    function findLastIndex(array, predicate, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = length - 1;\n      if (fromIndex !== undefined) {\n        index = toInteger(fromIndex);\n        index = fromIndex < 0\n          ? nativeMax(length + index, 0)\n          : nativeMin(index, length - 1);\n      }\n      return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n    }\n\n    /**\n     * Flattens `array` a single level deep.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * _.flatten([1, [2, [3, [4]], 5]]);\n     * // => [1, 2, [3, [4]], 5]\n     */\n    function flatten(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseFlatten(array, 1) : [];\n    }\n\n    /**\n     * Recursively flattens `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * _.flattenDeep([1, [2, [3, [4]], 5]]);\n     * // => [1, 2, 3, 4, 5]\n     */\n    function flattenDeep(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseFlatten(array, INFINITY) : [];\n    }\n\n    /**\n     * Recursively flatten `array` up to `depth` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.4.0\n     * @category Array\n     * @param {Array} array The array to flatten.\n     * @param {number} [depth=1] The maximum recursion depth.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * var array = [1, [2, [3, [4]], 5]];\n     *\n     * _.flattenDepth(array, 1);\n     * // => [1, 2, [3, [4]], 5]\n     *\n     * _.flattenDepth(array, 2);\n     * // => [1, 2, 3, [4], 5]\n     */\n    function flattenDepth(array, depth) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      depth = depth === undefined ? 1 : toInteger(depth);\n      return baseFlatten(array, depth);\n    }\n\n    /**\n     * The inverse of `_.toPairs`; this method returns an object composed\n     * from key-value `pairs`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} pairs The key-value pairs.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.fromPairs([['a', 1], ['b', 2]]);\n     * // => { 'a': 1, 'b': 2 }\n     */\n    function fromPairs(pairs) {\n      var index = -1,\n          length = pairs == null ? 0 : pairs.length,\n          result = {};\n\n      while (++index < length) {\n        var pair = pairs[index];\n        result[pair[0]] = pair[1];\n      }\n      return result;\n    }\n\n    /**\n     * Gets the first element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @alias first\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {*} Returns the first element of `array`.\n     * @example\n     *\n     * _.head([1, 2, 3]);\n     * // => 1\n     *\n     * _.head([]);\n     * // => undefined\n     */\n    function head(array) {\n      return (array && array.length) ? array[0] : undefined;\n    }\n\n    /**\n     * Gets the index at which the first occurrence of `value` is found in `array`\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. If `fromIndex` is negative, it's used as the\n     * offset from the end of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.indexOf([1, 2, 1, 2], 2);\n     * // => 1\n     *\n     * // Search from the `fromIndex`.\n     * _.indexOf([1, 2, 1, 2], 2, 2);\n     * // => 3\n     */\n    function indexOf(array, value, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = fromIndex == null ? 0 : toInteger(fromIndex);\n      if (index < 0) {\n        index = nativeMax(length + index, 0);\n      }\n      return baseIndexOf(array, value, index);\n    }\n\n    /**\n     * Gets all but the last element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.initial([1, 2, 3]);\n     * // => [1, 2]\n     */\n    function initial(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseSlice(array, 0, -1) : [];\n    }\n\n    /**\n     * Creates an array of unique values that are included in all given arrays\n     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons. The order and references of result values are\n     * determined by the first array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * _.intersection([2, 1], [2, 3]);\n     * // => [2]\n     */\n    var intersection = baseRest(function(arrays) {\n      var mapped = arrayMap(arrays, castArrayLikeObject);\n      return (mapped.length && mapped[0] === arrays[0])\n        ? baseIntersection(mapped)\n        : [];\n    });\n\n    /**\n     * This method is like `_.intersection` except that it accepts `iteratee`\n     * which is invoked for each element of each `arrays` to generate the criterion\n     * by which they're compared. The order and references of result values are\n     * determined by the first array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [2.1]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }]\n     */\n    var intersectionBy = baseRest(function(arrays) {\n      var iteratee = last(arrays),\n          mapped = arrayMap(arrays, castArrayLikeObject);\n\n      if (iteratee === last(mapped)) {\n        iteratee = undefined;\n      } else {\n        mapped.pop();\n      }\n      return (mapped.length && mapped[0] === arrays[0])\n        ? baseIntersection(mapped, getIteratee(iteratee, 2))\n        : [];\n    });\n\n    /**\n     * This method is like `_.intersection` except that it accepts `comparator`\n     * which is invoked to compare elements of `arrays`. The order and references\n     * of result values are determined by the first array. The comparator is\n     * invoked with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of intersecting values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.intersectionWith(objects, others, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }]\n     */\n    var intersectionWith = baseRest(function(arrays) {\n      var comparator = last(arrays),\n          mapped = arrayMap(arrays, castArrayLikeObject);\n\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      if (comparator) {\n        mapped.pop();\n      }\n      return (mapped.length && mapped[0] === arrays[0])\n        ? baseIntersection(mapped, undefined, comparator)\n        : [];\n    });\n\n    /**\n     * Converts all elements in `array` into a string separated by `separator`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to convert.\n     * @param {string} [separator=','] The element separator.\n     * @returns {string} Returns the joined string.\n     * @example\n     *\n     * _.join(['a', 'b', 'c'], '~');\n     * // => 'a~b~c'\n     */\n    function join(array, separator) {\n      return array == null ? '' : nativeJoin.call(array, separator);\n    }\n\n    /**\n     * Gets the last element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {*} Returns the last element of `array`.\n     * @example\n     *\n     * _.last([1, 2, 3]);\n     * // => 3\n     */\n    function last(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? array[length - 1] : undefined;\n    }\n\n    /**\n     * This method is like `_.indexOf` except that it iterates over elements of\n     * `array` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=array.length-1] The index to search from.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.lastIndexOf([1, 2, 1, 2], 2);\n     * // => 3\n     *\n     * // Search from the `fromIndex`.\n     * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n     * // => 1\n     */\n    function lastIndexOf(array, value, fromIndex) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return -1;\n      }\n      var index = length;\n      if (fromIndex !== undefined) {\n        index = toInteger(fromIndex);\n        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n      }\n      return value === value\n        ? strictLastIndexOf(array, value, index)\n        : baseFindIndex(array, baseIsNaN, index, true);\n    }\n\n    /**\n     * Gets the element at index `n` of `array`. If `n` is negative, the nth\n     * element from the end is returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.11.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=0] The index of the element to return.\n     * @returns {*} Returns the nth element of `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'd'];\n     *\n     * _.nth(array, 1);\n     * // => 'b'\n     *\n     * _.nth(array, -2);\n     * // => 'c';\n     */\n    function nth(array, n) {\n      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n    }\n\n    /**\n     * Removes all given values from `array` using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n     * to remove elements from an array by predicate.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {...*} [values] The values to remove.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n     *\n     * _.pull(array, 'a', 'c');\n     * console.log(array);\n     * // => ['b', 'b']\n     */\n    var pull = baseRest(pullAll);\n\n    /**\n     * This method is like `_.pull` except that it accepts an array of values to remove.\n     *\n     * **Note:** Unlike `_.difference`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n     *\n     * _.pullAll(array, ['a', 'c']);\n     * console.log(array);\n     * // => ['b', 'b']\n     */\n    function pullAll(array, values) {\n      return (array && array.length && values && values.length)\n        ? basePullAll(array, values)\n        : array;\n    }\n\n    /**\n     * This method is like `_.pullAll` except that it accepts `iteratee` which is\n     * invoked for each element of `array` and `values` to generate the criterion\n     * by which they're compared. The iteratee is invoked with one argument: (value).\n     *\n     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n     *\n     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n     * console.log(array);\n     * // => [{ 'x': 2 }]\n     */\n    function pullAllBy(array, values, iteratee) {\n      return (array && array.length && values && values.length)\n        ? basePullAll(array, values, getIteratee(iteratee, 2))\n        : array;\n    }\n\n    /**\n     * This method is like `_.pullAll` except that it accepts `comparator` which\n     * is invoked to compare elements of `array` to `values`. The comparator is\n     * invoked with two arguments: (arrVal, othVal).\n     *\n     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Array} values The values to remove.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n     *\n     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n     * console.log(array);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n     */\n    function pullAllWith(array, values, comparator) {\n      return (array && array.length && values && values.length)\n        ? basePullAll(array, values, undefined, comparator)\n        : array;\n    }\n\n    /**\n     * Removes elements from `array` corresponding to `indexes` and returns an\n     * array of removed elements.\n     *\n     * **Note:** Unlike `_.at`, this method mutates `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n     * @returns {Array} Returns the new array of removed elements.\n     * @example\n     *\n     * var array = ['a', 'b', 'c', 'd'];\n     * var pulled = _.pullAt(array, [1, 3]);\n     *\n     * console.log(array);\n     * // => ['a', 'c']\n     *\n     * console.log(pulled);\n     * // => ['b', 'd']\n     */\n    var pullAt = flatRest(function(array, indexes) {\n      var length = array == null ? 0 : array.length,\n          result = baseAt(array, indexes);\n\n      basePullAt(array, arrayMap(indexes, function(index) {\n        return isIndex(index, length) ? +index : index;\n      }).sort(compareAscending));\n\n      return result;\n    });\n\n    /**\n     * Removes all elements from `array` that `predicate` returns truthy for\n     * and returns an array of the removed elements. The predicate is invoked\n     * with three arguments: (value, index, array).\n     *\n     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n     * to pull elements from an array by value.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new array of removed elements.\n     * @example\n     *\n     * var array = [1, 2, 3, 4];\n     * var evens = _.remove(array, function(n) {\n     *   return n % 2 == 0;\n     * });\n     *\n     * console.log(array);\n     * // => [1, 3]\n     *\n     * console.log(evens);\n     * // => [2, 4]\n     */\n    function remove(array, predicate) {\n      var result = [];\n      if (!(array && array.length)) {\n        return result;\n      }\n      var index = -1,\n          indexes = [],\n          length = array.length;\n\n      predicate = getIteratee(predicate, 3);\n      while (++index < length) {\n        var value = array[index];\n        if (predicate(value, index, array)) {\n          result.push(value);\n          indexes.push(index);\n        }\n      }\n      basePullAt(array, indexes);\n      return result;\n    }\n\n    /**\n     * Reverses `array` so that the first element becomes the last, the second\n     * element becomes the second to last, and so on.\n     *\n     * **Note:** This method mutates `array` and is based on\n     * [`Array#reverse`](https://mdn.io/Array/reverse).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to modify.\n     * @returns {Array} Returns `array`.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _.reverse(array);\n     * // => [3, 2, 1]\n     *\n     * console.log(array);\n     * // => [3, 2, 1]\n     */\n    function reverse(array) {\n      return array == null ? array : nativeReverse.call(array);\n    }\n\n    /**\n     * Creates a slice of `array` from `start` up to, but not including, `end`.\n     *\n     * **Note:** This method is used instead of\n     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n     * returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to slice.\n     * @param {number} [start=0] The start position.\n     * @param {number} [end=array.length] The end position.\n     * @returns {Array} Returns the slice of `array`.\n     */\n    function slice(array, start, end) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n        start = 0;\n        end = length;\n      }\n      else {\n        start = start == null ? 0 : toInteger(start);\n        end = end === undefined ? length : toInteger(end);\n      }\n      return baseSlice(array, start, end);\n    }\n\n    /**\n     * Uses a binary search to determine the lowest index at which `value`\n     * should be inserted into `array` in order to maintain its sort order.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * _.sortedIndex([30, 50], 40);\n     * // => 1\n     */\n    function sortedIndex(array, value) {\n      return baseSortedIndex(array, value);\n    }\n\n    /**\n     * This method is like `_.sortedIndex` except that it accepts `iteratee`\n     * which is invoked for `value` and each element of `array` to compute their\n     * sort ranking. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * var objects = [{ 'x': 4 }, { 'x': 5 }];\n     *\n     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n     * // => 0\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n     * // => 0\n     */\n    function sortedIndexBy(array, value, iteratee) {\n      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n    }\n\n    /**\n     * This method is like `_.indexOf` except that it performs a binary\n     * search on a sorted `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n     * // => 1\n     */\n    function sortedIndexOf(array, value) {\n      var length = array == null ? 0 : array.length;\n      if (length) {\n        var index = baseSortedIndex(array, value);\n        if (index < length && eq(array[index], value)) {\n          return index;\n        }\n      }\n      return -1;\n    }\n\n    /**\n     * This method is like `_.sortedIndex` except that it returns the highest\n     * index at which `value` should be inserted into `array` in order to\n     * maintain its sort order.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n     * // => 4\n     */\n    function sortedLastIndex(array, value) {\n      return baseSortedIndex(array, value, true);\n    }\n\n    /**\n     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n     * which is invoked for `value` and each element of `array` to compute their\n     * sort ranking. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The sorted array to inspect.\n     * @param {*} value The value to evaluate.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the index at which `value` should be inserted\n     *  into `array`.\n     * @example\n     *\n     * var objects = [{ 'x': 4 }, { 'x': 5 }];\n     *\n     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n     * // => 1\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n     * // => 1\n     */\n    function sortedLastIndexBy(array, value, iteratee) {\n      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n    }\n\n    /**\n     * This method is like `_.lastIndexOf` except that it performs a binary\n     * search on a sorted `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {*} value The value to search for.\n     * @returns {number} Returns the index of the matched value, else `-1`.\n     * @example\n     *\n     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n     * // => 3\n     */\n    function sortedLastIndexOf(array, value) {\n      var length = array == null ? 0 : array.length;\n      if (length) {\n        var index = baseSortedIndex(array, value, true) - 1;\n        if (eq(array[index], value)) {\n          return index;\n        }\n      }\n      return -1;\n    }\n\n    /**\n     * This method is like `_.uniq` except that it's designed and optimized\n     * for sorted arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.sortedUniq([1, 1, 2]);\n     * // => [1, 2]\n     */\n    function sortedUniq(array) {\n      return (array && array.length)\n        ? baseSortedUniq(array)\n        : [];\n    }\n\n    /**\n     * This method is like `_.uniqBy` except that it's designed and optimized\n     * for sorted arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n     * // => [1.1, 2.3]\n     */\n    function sortedUniqBy(array, iteratee) {\n      return (array && array.length)\n        ? baseSortedUniq(array, getIteratee(iteratee, 2))\n        : [];\n    }\n\n    /**\n     * Gets all but the first element of `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.tail([1, 2, 3]);\n     * // => [2, 3]\n     */\n    function tail(array) {\n      var length = array == null ? 0 : array.length;\n      return length ? baseSlice(array, 1, length) : [];\n    }\n\n    /**\n     * Creates a slice of `array` with `n` elements taken from the beginning.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to take.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.take([1, 2, 3]);\n     * // => [1]\n     *\n     * _.take([1, 2, 3], 2);\n     * // => [1, 2]\n     *\n     * _.take([1, 2, 3], 5);\n     * // => [1, 2, 3]\n     *\n     * _.take([1, 2, 3], 0);\n     * // => []\n     */\n    function take(array, n, guard) {\n      if (!(array && array.length)) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      return baseSlice(array, 0, n < 0 ? 0 : n);\n    }\n\n    /**\n     * Creates a slice of `array` with `n` elements taken from the end.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {number} [n=1] The number of elements to take.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * _.takeRight([1, 2, 3]);\n     * // => [3]\n     *\n     * _.takeRight([1, 2, 3], 2);\n     * // => [2, 3]\n     *\n     * _.takeRight([1, 2, 3], 5);\n     * // => [1, 2, 3]\n     *\n     * _.takeRight([1, 2, 3], 0);\n     * // => []\n     */\n    function takeRight(array, n, guard) {\n      var length = array == null ? 0 : array.length;\n      if (!length) {\n        return [];\n      }\n      n = (guard || n === undefined) ? 1 : toInteger(n);\n      n = length - n;\n      return baseSlice(array, n < 0 ? 0 : n, length);\n    }\n\n    /**\n     * Creates a slice of `array` with elements taken from the end. Elements are\n     * taken until `predicate` returns falsey. The predicate is invoked with\n     * three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': true },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': false }\n     * ];\n     *\n     * _.takeRightWhile(users, function(o) { return !o.active; });\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n     * // => objects for ['pebbles']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.takeRightWhile(users, ['active', false]);\n     * // => objects for ['fred', 'pebbles']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.takeRightWhile(users, 'active');\n     * // => []\n     */\n    function takeRightWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3), false, true)\n        : [];\n    }\n\n    /**\n     * Creates a slice of `array` with elements taken from the beginning. Elements\n     * are taken until `predicate` returns falsey. The predicate is invoked with\n     * three arguments: (value, index, array).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Array\n     * @param {Array} array The array to query.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the slice of `array`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'active': false },\n     *   { 'user': 'fred',    'active': false },\n     *   { 'user': 'pebbles', 'active': true }\n     * ];\n     *\n     * _.takeWhile(users, function(o) { return !o.active; });\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.takeWhile(users, { 'user': 'barney', 'active': false });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.takeWhile(users, ['active', false]);\n     * // => objects for ['barney', 'fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.takeWhile(users, 'active');\n     * // => []\n     */\n    function takeWhile(array, predicate) {\n      return (array && array.length)\n        ? baseWhile(array, getIteratee(predicate, 3))\n        : [];\n    }\n\n    /**\n     * Creates an array of unique values, in order, from all given arrays using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * _.union([2], [1, 2]);\n     * // => [2, 1]\n     */\n    var union = baseRest(function(arrays) {\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n    });\n\n    /**\n     * This method is like `_.union` except that it accepts `iteratee` which is\n     * invoked for each element of each `arrays` to generate the criterion by\n     * which uniqueness is computed. Result values are chosen from the first\n     * array in which the value occurs. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n     * // => [2.1, 1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }, { 'x': 2 }]\n     */\n    var unionBy = baseRest(function(arrays) {\n      var iteratee = last(arrays);\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n    });\n\n    /**\n     * This method is like `_.union` except that it accepts `comparator` which\n     * is invoked to compare elements of `arrays`. Result values are chosen from\n     * the first array in which the value occurs. The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of combined values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.unionWith(objects, others, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n     */\n    var unionWith = baseRest(function(arrays) {\n      var comparator = last(arrays);\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n    });\n\n    /**\n     * Creates a duplicate-free version of an array, using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons, in which only the first occurrence of each element\n     * is kept. The order of result values is determined by the order they occur\n     * in the array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.uniq([2, 1, 2]);\n     * // => [2, 1]\n     */\n    function uniq(array) {\n      return (array && array.length) ? baseUniq(array) : [];\n    }\n\n    /**\n     * This method is like `_.uniq` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * uniqueness is computed. The order of result values is determined by the\n     * order they occur in the array. The iteratee is invoked with one argument:\n     * (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n     * // => [2.1, 1.2]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 1 }, { 'x': 2 }]\n     */\n    function uniqBy(array, iteratee) {\n      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n    }\n\n    /**\n     * This method is like `_.uniq` except that it accepts `comparator` which\n     * is invoked to compare elements of `array`. The order of result values is\n     * determined by the order they occur in the array.The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new duplicate free array.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.uniqWith(objects, _.isEqual);\n     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n     */\n    function uniqWith(array, comparator) {\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n    }\n\n    /**\n     * This method is like `_.zip` except that it accepts an array of grouped\n     * elements and creates an array regrouping the elements to their pre-zip\n     * configuration.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.2.0\n     * @category Array\n     * @param {Array} array The array of grouped elements to process.\n     * @returns {Array} Returns the new array of regrouped elements.\n     * @example\n     *\n     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n     * // => [['a', 1, true], ['b', 2, false]]\n     *\n     * _.unzip(zipped);\n     * // => [['a', 'b'], [1, 2], [true, false]]\n     */\n    function unzip(array) {\n      if (!(array && array.length)) {\n        return [];\n      }\n      var length = 0;\n      array = arrayFilter(array, function(group) {\n        if (isArrayLikeObject(group)) {\n          length = nativeMax(group.length, length);\n          return true;\n        }\n      });\n      return baseTimes(length, function(index) {\n        return arrayMap(array, baseProperty(index));\n      });\n    }\n\n    /**\n     * This method is like `_.unzip` except that it accepts `iteratee` to specify\n     * how regrouped values should be combined. The iteratee is invoked with the\n     * elements of each group: (...group).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Array\n     * @param {Array} array The array of grouped elements to process.\n     * @param {Function} [iteratee=_.identity] The function to combine\n     *  regrouped values.\n     * @returns {Array} Returns the new array of regrouped elements.\n     * @example\n     *\n     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n     * // => [[1, 10, 100], [2, 20, 200]]\n     *\n     * _.unzipWith(zipped, _.add);\n     * // => [3, 30, 300]\n     */\n    function unzipWith(array, iteratee) {\n      if (!(array && array.length)) {\n        return [];\n      }\n      var result = unzip(array);\n      if (iteratee == null) {\n        return result;\n      }\n      return arrayMap(result, function(group) {\n        return apply(iteratee, undefined, group);\n      });\n    }\n\n    /**\n     * Creates an array excluding all given values using\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * for equality comparisons.\n     *\n     * **Note:** Unlike `_.pull`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {Array} array The array to inspect.\n     * @param {...*} [values] The values to exclude.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.difference, _.xor\n     * @example\n     *\n     * _.without([2, 1, 2, 3], 1, 2);\n     * // => [3]\n     */\n    var without = baseRest(function(array, values) {\n      return isArrayLikeObject(array)\n        ? baseDifference(array, values)\n        : [];\n    });\n\n    /**\n     * Creates an array of unique values that is the\n     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n     * of the given arrays. The order of result values is determined by the order\n     * they occur in the arrays.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @returns {Array} Returns the new array of filtered values.\n     * @see _.difference, _.without\n     * @example\n     *\n     * _.xor([2, 1], [2, 3]);\n     * // => [1, 3]\n     */\n    var xor = baseRest(function(arrays) {\n      return baseXor(arrayFilter(arrays, isArrayLikeObject));\n    });\n\n    /**\n     * This method is like `_.xor` except that it accepts `iteratee` which is\n     * invoked for each element of each `arrays` to generate the criterion by\n     * which by which they're compared. The order of result values is determined\n     * by the order they occur in the arrays. The iteratee is invoked with one\n     * argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n     * // => [1.2, 3.4]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n     * // => [{ 'x': 2 }]\n     */\n    var xorBy = baseRest(function(arrays) {\n      var iteratee = last(arrays);\n      if (isArrayLikeObject(iteratee)) {\n        iteratee = undefined;\n      }\n      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n    });\n\n    /**\n     * This method is like `_.xor` except that it accepts `comparator` which is\n     * invoked to compare elements of `arrays`. The order of result values is\n     * determined by the order they occur in the arrays. The comparator is invoked\n     * with two arguments: (arrVal, othVal).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to inspect.\n     * @param {Function} [comparator] The comparator invoked per element.\n     * @returns {Array} Returns the new array of filtered values.\n     * @example\n     *\n     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n     *\n     * _.xorWith(objects, others, _.isEqual);\n     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n     */\n    var xorWith = baseRest(function(arrays) {\n      var comparator = last(arrays);\n      comparator = typeof comparator == 'function' ? comparator : undefined;\n      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n    });\n\n    /**\n     * Creates an array of grouped elements, the first of which contains the\n     * first elements of the given arrays, the second of which contains the\n     * second elements of the given arrays, and so on.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to process.\n     * @returns {Array} Returns the new array of grouped elements.\n     * @example\n     *\n     * _.zip(['a', 'b'], [1, 2], [true, false]);\n     * // => [['a', 1, true], ['b', 2, false]]\n     */\n    var zip = baseRest(unzip);\n\n    /**\n     * This method is like `_.fromPairs` except that it accepts two arrays,\n     * one of property identifiers and one of corresponding values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.4.0\n     * @category Array\n     * @param {Array} [props=[]] The property identifiers.\n     * @param {Array} [values=[]] The property values.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.zipObject(['a', 'b'], [1, 2]);\n     * // => { 'a': 1, 'b': 2 }\n     */\n    function zipObject(props, values) {\n      return baseZipObject(props || [], values || [], assignValue);\n    }\n\n    /**\n     * This method is like `_.zipObject` except that it supports property paths.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.1.0\n     * @category Array\n     * @param {Array} [props=[]] The property identifiers.\n     * @param {Array} [values=[]] The property values.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n     */\n    function zipObjectDeep(props, values) {\n      return baseZipObject(props || [], values || [], baseSet);\n    }\n\n    /**\n     * This method is like `_.zip` except that it accepts `iteratee` to specify\n     * how grouped values should be combined. The iteratee is invoked with the\n     * elements of each group: (...group).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Array\n     * @param {...Array} [arrays] The arrays to process.\n     * @param {Function} [iteratee=_.identity] The function to combine\n     *  grouped values.\n     * @returns {Array} Returns the new array of grouped elements.\n     * @example\n     *\n     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n     *   return a + b + c;\n     * });\n     * // => [111, 222]\n     */\n    var zipWith = baseRest(function(arrays) {\n      var length = arrays.length,\n          iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n      return unzipWith(arrays, iteratee);\n    });\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n     * chain sequences enabled. The result of such sequences must be unwrapped\n     * with `_#value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.3.0\n     * @category Seq\n     * @param {*} value The value to wrap.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36 },\n     *   { 'user': 'fred',    'age': 40 },\n     *   { 'user': 'pebbles', 'age': 1 }\n     * ];\n     *\n     * var youngest = _\n     *   .chain(users)\n     *   .sortBy('age')\n     *   .map(function(o) {\n     *     return o.user + ' is ' + o.age;\n     *   })\n     *   .head()\n     *   .value();\n     * // => 'pebbles is 1'\n     */\n    function chain(value) {\n      var result = lodash(value);\n      result.__chain__ = true;\n      return result;\n    }\n\n    /**\n     * This method invokes `interceptor` and returns `value`. The interceptor\n     * is invoked with one argument; (value). The purpose of this method is to\n     * \"tap into\" a method chain sequence in order to modify intermediate results.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @param {*} value The value to provide to `interceptor`.\n     * @param {Function} interceptor The function to invoke.\n     * @returns {*} Returns `value`.\n     * @example\n     *\n     * _([1, 2, 3])\n     *  .tap(function(array) {\n     *    // Mutate input array.\n     *    array.pop();\n     *  })\n     *  .reverse()\n     *  .value();\n     * // => [2, 1]\n     */\n    function tap(value, interceptor) {\n      interceptor(value);\n      return value;\n    }\n\n    /**\n     * This method is like `_.tap` except that it returns the result of `interceptor`.\n     * The purpose of this method is to \"pass thru\" values replacing intermediate\n     * results in a method chain sequence.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Seq\n     * @param {*} value The value to provide to `interceptor`.\n     * @param {Function} interceptor The function to invoke.\n     * @returns {*} Returns the result of `interceptor`.\n     * @example\n     *\n     * _('  abc  ')\n     *  .chain()\n     *  .trim()\n     *  .thru(function(value) {\n     *    return [value];\n     *  })\n     *  .value();\n     * // => ['abc']\n     */\n    function thru(value, interceptor) {\n      return interceptor(value);\n    }\n\n    /**\n     * This method is the wrapper version of `_.at`.\n     *\n     * @name at\n     * @memberOf _\n     * @since 1.0.0\n     * @category Seq\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n     *\n     * _(object).at(['a[0].b.c', 'a[1]']).value();\n     * // => [3, 4]\n     */\n    var wrapperAt = flatRest(function(paths) {\n      var length = paths.length,\n          start = length ? paths[0] : 0,\n          value = this.__wrapped__,\n          interceptor = function(object) { return baseAt(object, paths); };\n\n      if (length > 1 || this.__actions__.length ||\n          !(value instanceof LazyWrapper) || !isIndex(start)) {\n        return this.thru(interceptor);\n      }\n      value = value.slice(start, +start + (length ? 1 : 0));\n      value.__actions__.push({\n        'func': thru,\n        'args': [interceptor],\n        'thisArg': undefined\n      });\n      return new LodashWrapper(value, this.__chain__).thru(function(array) {\n        if (length && !array.length) {\n          array.push(undefined);\n        }\n        return array;\n      });\n    });\n\n    /**\n     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n     *\n     * @name chain\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36 },\n     *   { 'user': 'fred',   'age': 40 }\n     * ];\n     *\n     * // A sequence without explicit chaining.\n     * _(users).head();\n     * // => { 'user': 'barney', 'age': 36 }\n     *\n     * // A sequence with explicit chaining.\n     * _(users)\n     *   .chain()\n     *   .head()\n     *   .pick('user')\n     *   .value();\n     * // => { 'user': 'barney' }\n     */\n    function wrapperChain() {\n      return chain(this);\n    }\n\n    /**\n     * Executes the chain sequence and returns the wrapped result.\n     *\n     * @name commit\n     * @memberOf _\n     * @since 3.2.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var array = [1, 2];\n     * var wrapped = _(array).push(3);\n     *\n     * console.log(array);\n     * // => [1, 2]\n     *\n     * wrapped = wrapped.commit();\n     * console.log(array);\n     * // => [1, 2, 3]\n     *\n     * wrapped.last();\n     * // => 3\n     *\n     * console.log(array);\n     * // => [1, 2, 3]\n     */\n    function wrapperCommit() {\n      return new LodashWrapper(this.value(), this.__chain__);\n    }\n\n    /**\n     * Gets the next value on a wrapped object following the\n     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n     *\n     * @name next\n     * @memberOf _\n     * @since 4.0.0\n     * @category Seq\n     * @returns {Object} Returns the next iterator value.\n     * @example\n     *\n     * var wrapped = _([1, 2]);\n     *\n     * wrapped.next();\n     * // => { 'done': false, 'value': 1 }\n     *\n     * wrapped.next();\n     * // => { 'done': false, 'value': 2 }\n     *\n     * wrapped.next();\n     * // => { 'done': true, 'value': undefined }\n     */\n    function wrapperNext() {\n      if (this.__values__ === undefined) {\n        this.__values__ = toArray(this.value());\n      }\n      var done = this.__index__ >= this.__values__.length,\n          value = done ? undefined : this.__values__[this.__index__++];\n\n      return { 'done': done, 'value': value };\n    }\n\n    /**\n     * Enables the wrapper to be iterable.\n     *\n     * @name Symbol.iterator\n     * @memberOf _\n     * @since 4.0.0\n     * @category Seq\n     * @returns {Object} Returns the wrapper object.\n     * @example\n     *\n     * var wrapped = _([1, 2]);\n     *\n     * wrapped[Symbol.iterator]() === wrapped;\n     * // => true\n     *\n     * Array.from(wrapped);\n     * // => [1, 2]\n     */\n    function wrapperToIterator() {\n      return this;\n    }\n\n    /**\n     * Creates a clone of the chain sequence planting `value` as the wrapped value.\n     *\n     * @name plant\n     * @memberOf _\n     * @since 3.2.0\n     * @category Seq\n     * @param {*} value The value to plant.\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var wrapped = _([1, 2]).map(square);\n     * var other = wrapped.plant([3, 4]);\n     *\n     * other.value();\n     * // => [9, 16]\n     *\n     * wrapped.value();\n     * // => [1, 4]\n     */\n    function wrapperPlant(value) {\n      var result,\n          parent = this;\n\n      while (parent instanceof baseLodash) {\n        var clone = wrapperClone(parent);\n        clone.__index__ = 0;\n        clone.__values__ = undefined;\n        if (result) {\n          previous.__wrapped__ = clone;\n        } else {\n          result = clone;\n        }\n        var previous = clone;\n        parent = parent.__wrapped__;\n      }\n      previous.__wrapped__ = value;\n      return result;\n    }\n\n    /**\n     * This method is the wrapper version of `_.reverse`.\n     *\n     * **Note:** This method mutates the wrapped array.\n     *\n     * @name reverse\n     * @memberOf _\n     * @since 0.1.0\n     * @category Seq\n     * @returns {Object} Returns the new `lodash` wrapper instance.\n     * @example\n     *\n     * var array = [1, 2, 3];\n     *\n     * _(array).reverse().value()\n     * // => [3, 2, 1]\n     *\n     * console.log(array);\n     * // => [3, 2, 1]\n     */\n    function wrapperReverse() {\n      var value = this.__wrapped__;\n      if (value instanceof LazyWrapper) {\n        var wrapped = value;\n        if (this.__actions__.length) {\n          wrapped = new LazyWrapper(this);\n        }\n        wrapped = wrapped.reverse();\n        wrapped.__actions__.push({\n          'func': thru,\n          'args': [reverse],\n          'thisArg': undefined\n        });\n        return new LodashWrapper(wrapped, this.__chain__);\n      }\n      return this.thru(reverse);\n    }\n\n    /**\n     * Executes the chain sequence to resolve the unwrapped value.\n     *\n     * @name value\n     * @memberOf _\n     * @since 0.1.0\n     * @alias toJSON, valueOf\n     * @category Seq\n     * @returns {*} Returns the resolved unwrapped value.\n     * @example\n     *\n     * _([1, 2, 3]).value();\n     * // => [1, 2, 3]\n     */\n    function wrapperValue() {\n      return baseWrapperValue(this.__wrapped__, this.__actions__);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The corresponding value of\n     * each key is the number of times the key was returned by `iteratee`. The\n     * iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * _.countBy([6.1, 4.2, 6.3], Math.floor);\n     * // => { '4': 1, '6': 2 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.countBy(['one', 'two', 'three'], 'length');\n     * // => { '3': 2, '5': 1 }\n     */\n    var countBy = createAggregator(function(result, value, key) {\n      if (hasOwnProperty.call(result, key)) {\n        ++result[key];\n      } else {\n        baseAssignValue(result, key, 1);\n      }\n    });\n\n    /**\n     * Checks if `predicate` returns truthy for **all** elements of `collection`.\n     * Iteration is stopped once `predicate` returns falsey. The predicate is\n     * invoked with three arguments: (value, index|key, collection).\n     *\n     * **Note:** This method returns `true` for\n     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n     * elements of empty collections.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {boolean} Returns `true` if all elements pass the predicate check,\n     *  else `false`.\n     * @example\n     *\n     * _.every([true, 1, null, 'yes'], Boolean);\n     * // => false\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': false },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.every(users, { 'user': 'barney', 'active': false });\n     * // => false\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.every(users, ['active', false]);\n     * // => true\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.every(users, 'active');\n     * // => false\n     */\n    function every(collection, predicate, guard) {\n      var func = isArray(collection) ? arrayEvery : baseEvery;\n      if (guard && isIterateeCall(collection, predicate, guard)) {\n        predicate = undefined;\n      }\n      return func(collection, getIteratee(predicate, 3));\n    }\n\n    /**\n     * Iterates over elements of `collection`, returning an array of all elements\n     * `predicate` returns truthy for. The predicate is invoked with three\n     * arguments: (value, index|key, collection).\n     *\n     * **Note:** Unlike `_.remove`, this method returns a new array.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     * @see _.reject\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': true },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * _.filter(users, function(o) { return !o.active; });\n     * // => objects for ['fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.filter(users, { 'age': 36, 'active': true });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.filter(users, ['active', false]);\n     * // => objects for ['fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.filter(users, 'active');\n     * // => objects for ['barney']\n     *\n     * // Combining several predicates using `_.overEvery` or `_.overSome`.\n     * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n     * // => objects for ['fred', 'barney']\n     */\n    function filter(collection, predicate) {\n      var func = isArray(collection) ? arrayFilter : baseFilter;\n      return func(collection, getIteratee(predicate, 3));\n    }\n\n    /**\n     * Iterates over elements of `collection`, returning the first element\n     * `predicate` returns truthy for. The predicate is invoked with three\n     * arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @returns {*} Returns the matched element, else `undefined`.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36, 'active': true },\n     *   { 'user': 'fred',    'age': 40, 'active': false },\n     *   { 'user': 'pebbles', 'age': 1,  'active': true }\n     * ];\n     *\n     * _.find(users, function(o) { return o.age < 40; });\n     * // => object for 'barney'\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.find(users, { 'age': 1, 'active': true });\n     * // => object for 'pebbles'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.find(users, ['active', false]);\n     * // => object for 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.find(users, 'active');\n     * // => object for 'barney'\n     */\n    var find = createFind(findIndex);\n\n    /**\n     * This method is like `_.find` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param {number} [fromIndex=collection.length-1] The index to search from.\n     * @returns {*} Returns the matched element, else `undefined`.\n     * @example\n     *\n     * _.findLast([1, 2, 3, 4], function(n) {\n     *   return n % 2 == 1;\n     * });\n     * // => 3\n     */\n    var findLast = createFind(findLastIndex);\n\n    /**\n     * Creates a flattened array of values by running each element in `collection`\n     * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n     * with three arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [n, n];\n     * }\n     *\n     * _.flatMap([1, 2], duplicate);\n     * // => [1, 1, 2, 2]\n     */\n    function flatMap(collection, iteratee) {\n      return baseFlatten(map(collection, iteratee), 1);\n    }\n\n    /**\n     * This method is like `_.flatMap` except that it recursively flattens the\n     * mapped results.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [[[n, n]]];\n     * }\n     *\n     * _.flatMapDeep([1, 2], duplicate);\n     * // => [1, 1, 2, 2]\n     */\n    function flatMapDeep(collection, iteratee) {\n      return baseFlatten(map(collection, iteratee), INFINITY);\n    }\n\n    /**\n     * This method is like `_.flatMap` except that it recursively flattens the\n     * mapped results up to `depth` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {number} [depth=1] The maximum recursion depth.\n     * @returns {Array} Returns the new flattened array.\n     * @example\n     *\n     * function duplicate(n) {\n     *   return [[[n, n]]];\n     * }\n     *\n     * _.flatMapDepth([1, 2], duplicate, 2);\n     * // => [[1, 1], [2, 2]]\n     */\n    function flatMapDepth(collection, iteratee, depth) {\n      depth = depth === undefined ? 1 : toInteger(depth);\n      return baseFlatten(map(collection, iteratee), depth);\n    }\n\n    /**\n     * Iterates over elements of `collection` and invokes `iteratee` for each element.\n     * The iteratee is invoked with three arguments: (value, index|key, collection).\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n     * property are iterated like arrays. To avoid this behavior use `_.forIn`\n     * or `_.forOwn` for object iteration.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @alias each\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     * @see _.forEachRight\n     * @example\n     *\n     * _.forEach([1, 2], function(value) {\n     *   console.log(value);\n     * });\n     * // => Logs `1` then `2`.\n     *\n     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n     */\n    function forEach(collection, iteratee) {\n      var func = isArray(collection) ? arrayEach : baseEach;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * This method is like `_.forEach` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @alias eachRight\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array|Object} Returns `collection`.\n     * @see _.forEach\n     * @example\n     *\n     * _.forEachRight([1, 2], function(value) {\n     *   console.log(value);\n     * });\n     * // => Logs `2` then `1`.\n     */\n    function forEachRight(collection, iteratee) {\n      var func = isArray(collection) ? arrayEachRight : baseEachRight;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The order of grouped values\n     * is determined by the order they occur in `collection`. The corresponding\n     * value of each key is an array of elements responsible for generating the\n     * key. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n     * // => { '4': [4.2], '6': [6.1, 6.3] }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.groupBy(['one', 'two', 'three'], 'length');\n     * // => { '3': ['one', 'two'], '5': ['three'] }\n     */\n    var groupBy = createAggregator(function(result, value, key) {\n      if (hasOwnProperty.call(result, key)) {\n        result[key].push(value);\n      } else {\n        baseAssignValue(result, key, [value]);\n      }\n    });\n\n    /**\n     * Checks if `value` is in `collection`. If `collection` is a string, it's\n     * checked for a substring of `value`, otherwise\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * is used for equality comparisons. If `fromIndex` is negative, it's used as\n     * the offset from the end of `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object|string} collection The collection to inspect.\n     * @param {*} value The value to search for.\n     * @param {number} [fromIndex=0] The index to search from.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n     * @returns {boolean} Returns `true` if `value` is found, else `false`.\n     * @example\n     *\n     * _.includes([1, 2, 3], 1);\n     * // => true\n     *\n     * _.includes([1, 2, 3], 1, 2);\n     * // => false\n     *\n     * _.includes({ 'a': 1, 'b': 2 }, 1);\n     * // => true\n     *\n     * _.includes('abcd', 'bc');\n     * // => true\n     */\n    function includes(collection, value, fromIndex, guard) {\n      collection = isArrayLike(collection) ? collection : values(collection);\n      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n      var length = collection.length;\n      if (fromIndex < 0) {\n        fromIndex = nativeMax(length + fromIndex, 0);\n      }\n      return isString(collection)\n        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n    }\n\n    /**\n     * Invokes the method at `path` of each element in `collection`, returning\n     * an array of the results of each invoked method. Any additional arguments\n     * are provided to each invoked method. If `path` is a function, it's invoked\n     * for, and `this` bound to, each element in `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Array|Function|string} path The path of the method to invoke or\n     *  the function invoked per iteration.\n     * @param {...*} [args] The arguments to invoke each method with.\n     * @returns {Array} Returns the array of results.\n     * @example\n     *\n     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n     * // => [[1, 5, 7], [1, 2, 3]]\n     *\n     * _.invokeMap([123, 456], String.prototype.split, '');\n     * // => [['1', '2', '3'], ['4', '5', '6']]\n     */\n    var invokeMap = baseRest(function(collection, path, args) {\n      var index = -1,\n          isFunc = typeof path == 'function',\n          result = isArrayLike(collection) ? Array(collection.length) : [];\n\n      baseEach(collection, function(value) {\n        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n      });\n      return result;\n    });\n\n    /**\n     * Creates an object composed of keys generated from the results of running\n     * each element of `collection` thru `iteratee`. The corresponding value of\n     * each key is the last element responsible for generating the key. The\n     * iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n     * @returns {Object} Returns the composed aggregate object.\n     * @example\n     *\n     * var array = [\n     *   { 'dir': 'left', 'code': 97 },\n     *   { 'dir': 'right', 'code': 100 }\n     * ];\n     *\n     * _.keyBy(array, function(o) {\n     *   return String.fromCharCode(o.code);\n     * });\n     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n     *\n     * _.keyBy(array, 'dir');\n     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n     */\n    var keyBy = createAggregator(function(result, value, key) {\n      baseAssignValue(result, key, value);\n    });\n\n    /**\n     * Creates an array of values by running each element in `collection` thru\n     * `iteratee`. The iteratee is invoked with three arguments:\n     * (value, index|key, collection).\n     *\n     * Many lodash methods are guarded to work as iteratees for methods like\n     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n     *\n     * The guarded methods are:\n     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new mapped array.\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * _.map([4, 8], square);\n     * // => [16, 64]\n     *\n     * _.map({ 'a': 4, 'b': 8 }, square);\n     * // => [16, 64] (iteration order is not guaranteed)\n     *\n     * var users = [\n     *   { 'user': 'barney' },\n     *   { 'user': 'fred' }\n     * ];\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.map(users, 'user');\n     * // => ['barney', 'fred']\n     */\n    function map(collection, iteratee) {\n      var func = isArray(collection) ? arrayMap : baseMap;\n      return func(collection, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * This method is like `_.sortBy` except that it allows specifying the sort\n     * orders of the iteratees to sort by. If `orders` is unspecified, all values\n     * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n     * descending or \"asc\" for ascending sort order of corresponding values.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n     *  The iteratees to sort by.\n     * @param {string[]} [orders] The sort orders of `iteratees`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n     * @returns {Array} Returns the new sorted array.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'fred',   'age': 48 },\n     *   { 'user': 'barney', 'age': 34 },\n     *   { 'user': 'fred',   'age': 40 },\n     *   { 'user': 'barney', 'age': 36 }\n     * ];\n     *\n     * // Sort by `user` in ascending order and by `age` in descending order.\n     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n     */\n    function orderBy(collection, iteratees, orders, guard) {\n      if (collection == null) {\n        return [];\n      }\n      if (!isArray(iteratees)) {\n        iteratees = iteratees == null ? [] : [iteratees];\n      }\n      orders = guard ? undefined : orders;\n      if (!isArray(orders)) {\n        orders = orders == null ? [] : [orders];\n      }\n      return baseOrderBy(collection, iteratees, orders);\n    }\n\n    /**\n     * Creates an array of elements split into two groups, the first of which\n     * contains elements `predicate` returns truthy for, the second of which\n     * contains elements `predicate` returns falsey for. The predicate is\n     * invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the array of grouped elements.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney',  'age': 36, 'active': false },\n     *   { 'user': 'fred',    'age': 40, 'active': true },\n     *   { 'user': 'pebbles', 'age': 1,  'active': false }\n     * ];\n     *\n     * _.partition(users, function(o) { return o.active; });\n     * // => objects for [['fred'], ['barney', 'pebbles']]\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.partition(users, { 'age': 1, 'active': false });\n     * // => objects for [['pebbles'], ['barney', 'fred']]\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.partition(users, ['active', false]);\n     * // => objects for [['barney', 'pebbles'], ['fred']]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.partition(users, 'active');\n     * // => objects for [['fred'], ['barney', 'pebbles']]\n     */\n    var partition = createAggregator(function(result, value, key) {\n      result[key ? 0 : 1].push(value);\n    }, function() { return [[], []]; });\n\n    /**\n     * Reduces `collection` to a value which is the accumulated result of running\n     * each element in `collection` thru `iteratee`, where each successive\n     * invocation is supplied the return value of the previous. If `accumulator`\n     * is not given, the first element of `collection` is used as the initial\n     * value. The iteratee is invoked with four arguments:\n     * (accumulator, value, index|key, collection).\n     *\n     * Many lodash methods are guarded to work as iteratees for methods like\n     * `_.reduce`, `_.reduceRight`, and `_.transform`.\n     *\n     * The guarded methods are:\n     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n     * and `sortBy`\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The initial value.\n     * @returns {*} Returns the accumulated value.\n     * @see _.reduceRight\n     * @example\n     *\n     * _.reduce([1, 2], function(sum, n) {\n     *   return sum + n;\n     * }, 0);\n     * // => 3\n     *\n     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n     *   (result[value] || (result[value] = [])).push(key);\n     *   return result;\n     * }, {});\n     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n     */\n    function reduce(collection, iteratee, accumulator) {\n      var func = isArray(collection) ? arrayReduce : baseReduce,\n          initAccum = arguments.length < 3;\n\n      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n    }\n\n    /**\n     * This method is like `_.reduce` except that it iterates over elements of\n     * `collection` from right to left.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The initial value.\n     * @returns {*} Returns the accumulated value.\n     * @see _.reduce\n     * @example\n     *\n     * var array = [[0, 1], [2, 3], [4, 5]];\n     *\n     * _.reduceRight(array, function(flattened, other) {\n     *   return flattened.concat(other);\n     * }, []);\n     * // => [4, 5, 2, 3, 0, 1]\n     */\n    function reduceRight(collection, iteratee, accumulator) {\n      var func = isArray(collection) ? arrayReduceRight : baseReduce,\n          initAccum = arguments.length < 3;\n\n      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n    }\n\n    /**\n     * The opposite of `_.filter`; this method returns the elements of `collection`\n     * that `predicate` does **not** return truthy for.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the new filtered array.\n     * @see _.filter\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': false },\n     *   { 'user': 'fred',   'age': 40, 'active': true }\n     * ];\n     *\n     * _.reject(users, function(o) { return !o.active; });\n     * // => objects for ['fred']\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.reject(users, { 'age': 40, 'active': true });\n     * // => objects for ['barney']\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.reject(users, ['active', false]);\n     * // => objects for ['fred']\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.reject(users, 'active');\n     * // => objects for ['barney']\n     */\n    function reject(collection, predicate) {\n      var func = isArray(collection) ? arrayFilter : baseFilter;\n      return func(collection, negate(getIteratee(predicate, 3)));\n    }\n\n    /**\n     * Gets a random element from `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to sample.\n     * @returns {*} Returns the random element.\n     * @example\n     *\n     * _.sample([1, 2, 3, 4]);\n     * // => 2\n     */\n    function sample(collection) {\n      var func = isArray(collection) ? arraySample : baseSample;\n      return func(collection);\n    }\n\n    /**\n     * Gets `n` random elements at unique keys from `collection` up to the\n     * size of `collection`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to sample.\n     * @param {number} [n=1] The number of elements to sample.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the random elements.\n     * @example\n     *\n     * _.sampleSize([1, 2, 3], 2);\n     * // => [3, 1]\n     *\n     * _.sampleSize([1, 2, 3], 4);\n     * // => [2, 3, 1]\n     */\n    function sampleSize(collection, n, guard) {\n      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n        n = 1;\n      } else {\n        n = toInteger(n);\n      }\n      var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n      return func(collection, n);\n    }\n\n    /**\n     * Creates an array of shuffled values, using a version of the\n     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to shuffle.\n     * @returns {Array} Returns the new shuffled array.\n     * @example\n     *\n     * _.shuffle([1, 2, 3, 4]);\n     * // => [4, 1, 3, 2]\n     */\n    function shuffle(collection) {\n      var func = isArray(collection) ? arrayShuffle : baseShuffle;\n      return func(collection);\n    }\n\n    /**\n     * Gets the size of `collection` by returning its length for array-like\n     * values or the number of own enumerable string keyed properties for objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object|string} collection The collection to inspect.\n     * @returns {number} Returns the collection size.\n     * @example\n     *\n     * _.size([1, 2, 3]);\n     * // => 3\n     *\n     * _.size({ 'a': 1, 'b': 2 });\n     * // => 2\n     *\n     * _.size('pebbles');\n     * // => 7\n     */\n    function size(collection) {\n      if (collection == null) {\n        return 0;\n      }\n      if (isArrayLike(collection)) {\n        return isString(collection) ? stringSize(collection) : collection.length;\n      }\n      var tag = getTag(collection);\n      if (tag == mapTag || tag == setTag) {\n        return collection.size;\n      }\n      return baseKeys(collection).length;\n    }\n\n    /**\n     * Checks if `predicate` returns truthy for **any** element of `collection`.\n     * Iteration is stopped once `predicate` returns truthy. The predicate is\n     * invoked with three arguments: (value, index|key, collection).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {boolean} Returns `true` if any element passes the predicate check,\n     *  else `false`.\n     * @example\n     *\n     * _.some([null, 0, 'yes', false], Boolean);\n     * // => true\n     *\n     * var users = [\n     *   { 'user': 'barney', 'active': true },\n     *   { 'user': 'fred',   'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.some(users, { 'user': 'barney', 'active': false });\n     * // => false\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.some(users, ['active', false]);\n     * // => true\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.some(users, 'active');\n     * // => true\n     */\n    function some(collection, predicate, guard) {\n      var func = isArray(collection) ? arraySome : baseSome;\n      if (guard && isIterateeCall(collection, predicate, guard)) {\n        predicate = undefined;\n      }\n      return func(collection, getIteratee(predicate, 3));\n    }\n\n    /**\n     * Creates an array of elements, sorted in ascending order by the results of\n     * running each element in a collection thru each iteratee. This method\n     * performs a stable sort, that is, it preserves the original sort order of\n     * equal elements. The iteratees are invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Collection\n     * @param {Array|Object} collection The collection to iterate over.\n     * @param {...(Function|Function[])} [iteratees=[_.identity]]\n     *  The iteratees to sort by.\n     * @returns {Array} Returns the new sorted array.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'fred',   'age': 48 },\n     *   { 'user': 'barney', 'age': 36 },\n     *   { 'user': 'fred',   'age': 30 },\n     *   { 'user': 'barney', 'age': 34 }\n     * ];\n     *\n     * _.sortBy(users, [function(o) { return o.user; }]);\n     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n     *\n     * _.sortBy(users, ['user', 'age']);\n     * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n     */\n    var sortBy = baseRest(function(collection, iteratees) {\n      if (collection == null) {\n        return [];\n      }\n      var length = iteratees.length;\n      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n        iteratees = [];\n      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n        iteratees = [iteratees[0]];\n      }\n      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n    });\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Gets the timestamp of the number of milliseconds that have elapsed since\n     * the Unix epoch (1 January 1970 00:00:00 UTC).\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Date\n     * @returns {number} Returns the timestamp.\n     * @example\n     *\n     * _.defer(function(stamp) {\n     *   console.log(_.now() - stamp);\n     * }, _.now());\n     * // => Logs the number of milliseconds it took for the deferred invocation.\n     */\n    var now = ctxNow || function() {\n      return root.Date.now();\n    };\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * The opposite of `_.before`; this method creates a function that invokes\n     * `func` once it's called `n` or more times.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {number} n The number of calls before `func` is invoked.\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * var saves = ['profile', 'settings'];\n     *\n     * var done = _.after(saves.length, function() {\n     *   console.log('done saving!');\n     * });\n     *\n     * _.forEach(saves, function(type) {\n     *   asyncSave({ 'type': type, 'complete': done });\n     * });\n     * // => Logs 'done saving!' after the two async saves have completed.\n     */\n    function after(n, func) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      n = toInteger(n);\n      return function() {\n        if (--n < 1) {\n          return func.apply(this, arguments);\n        }\n      };\n    }\n\n    /**\n     * Creates a function that invokes `func`, with up to `n` arguments,\n     * ignoring any additional arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to cap arguments for.\n     * @param {number} [n=func.length] The arity cap.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new capped function.\n     * @example\n     *\n     * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n     * // => [6, 8, 10]\n     */\n    function ary(func, n, guard) {\n      n = guard ? undefined : n;\n      n = (func && n == null) ? func.length : n;\n      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n    }\n\n    /**\n     * Creates a function that invokes `func`, with the `this` binding and arguments\n     * of the created function, while it's called less than `n` times. Subsequent\n     * calls to the created function return the result of the last `func` invocation.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {number} n The number of calls at which `func` is no longer invoked.\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * jQuery(element).on('click', _.before(5, addContactToList));\n     * // => Allows adding up to 4 contacts to the list.\n     */\n    function before(n, func) {\n      var result;\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      n = toInteger(n);\n      return function() {\n        if (--n > 0) {\n          result = func.apply(this, arguments);\n        }\n        if (n <= 1) {\n          func = undefined;\n        }\n        return result;\n      };\n    }\n\n    /**\n     * Creates a function that invokes `func` with the `this` binding of `thisArg`\n     * and `partials` prepended to the arguments it receives.\n     *\n     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n     * may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n     * property of bound functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to bind.\n     * @param {*} thisArg The `this` binding of `func`.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new bound function.\n     * @example\n     *\n     * function greet(greeting, punctuation) {\n     *   return greeting + ' ' + this.user + punctuation;\n     * }\n     *\n     * var object = { 'user': 'fred' };\n     *\n     * var bound = _.bind(greet, object, 'hi');\n     * bound('!');\n     * // => 'hi fred!'\n     *\n     * // Bound with placeholders.\n     * var bound = _.bind(greet, object, _, '!');\n     * bound('hi');\n     * // => 'hi fred!'\n     */\n    var bind = baseRest(function(func, thisArg, partials) {\n      var bitmask = WRAP_BIND_FLAG;\n      if (partials.length) {\n        var holders = replaceHolders(partials, getHolder(bind));\n        bitmask |= WRAP_PARTIAL_FLAG;\n      }\n      return createWrap(func, bitmask, thisArg, partials, holders);\n    });\n\n    /**\n     * Creates a function that invokes the method at `object[key]` with `partials`\n     * prepended to the arguments it receives.\n     *\n     * This method differs from `_.bind` by allowing bound functions to reference\n     * methods that may be redefined or don't yet exist. See\n     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n     * for more details.\n     *\n     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.10.0\n     * @category Function\n     * @param {Object} object The object to invoke the method on.\n     * @param {string} key The key of the method.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new bound function.\n     * @example\n     *\n     * var object = {\n     *   'user': 'fred',\n     *   'greet': function(greeting, punctuation) {\n     *     return greeting + ' ' + this.user + punctuation;\n     *   }\n     * };\n     *\n     * var bound = _.bindKey(object, 'greet', 'hi');\n     * bound('!');\n     * // => 'hi fred!'\n     *\n     * object.greet = function(greeting, punctuation) {\n     *   return greeting + 'ya ' + this.user + punctuation;\n     * };\n     *\n     * bound('!');\n     * // => 'hiya fred!'\n     *\n     * // Bound with placeholders.\n     * var bound = _.bindKey(object, 'greet', _, '!');\n     * bound('hi');\n     * // => 'hiya fred!'\n     */\n    var bindKey = baseRest(function(object, key, partials) {\n      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n      if (partials.length) {\n        var holders = replaceHolders(partials, getHolder(bindKey));\n        bitmask |= WRAP_PARTIAL_FLAG;\n      }\n      return createWrap(key, bitmask, object, partials, holders);\n    });\n\n    /**\n     * Creates a function that accepts arguments of `func` and either invokes\n     * `func` returning its result, if at least `arity` number of arguments have\n     * been provided, or returns a function that accepts the remaining `func`\n     * arguments, and so on. The arity of `func` may be specified if `func.length`\n     * is not sufficient.\n     *\n     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n     * may be used as a placeholder for provided arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of curried functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Function\n     * @param {Function} func The function to curry.\n     * @param {number} [arity=func.length] The arity of `func`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new curried function.\n     * @example\n     *\n     * var abc = function(a, b, c) {\n     *   return [a, b, c];\n     * };\n     *\n     * var curried = _.curry(abc);\n     *\n     * curried(1)(2)(3);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2)(3);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2, 3);\n     * // => [1, 2, 3]\n     *\n     * // Curried with placeholders.\n     * curried(1)(_, 3)(2);\n     * // => [1, 2, 3]\n     */\n    function curry(func, arity, guard) {\n      arity = guard ? undefined : arity;\n      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n      result.placeholder = curry.placeholder;\n      return result;\n    }\n\n    /**\n     * This method is like `_.curry` except that arguments are applied to `func`\n     * in the manner of `_.partialRight` instead of `_.partial`.\n     *\n     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for provided arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of curried functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to curry.\n     * @param {number} [arity=func.length] The arity of `func`.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the new curried function.\n     * @example\n     *\n     * var abc = function(a, b, c) {\n     *   return [a, b, c];\n     * };\n     *\n     * var curried = _.curryRight(abc);\n     *\n     * curried(3)(2)(1);\n     * // => [1, 2, 3]\n     *\n     * curried(2, 3)(1);\n     * // => [1, 2, 3]\n     *\n     * curried(1, 2, 3);\n     * // => [1, 2, 3]\n     *\n     * // Curried with placeholders.\n     * curried(3)(1, _)(2);\n     * // => [1, 2, 3]\n     */\n    function curryRight(func, arity, guard) {\n      arity = guard ? undefined : arity;\n      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n      result.placeholder = curryRight.placeholder;\n      return result;\n    }\n\n    /**\n     * Creates a debounced function that delays invoking `func` until after `wait`\n     * milliseconds have elapsed since the last time the debounced function was\n     * invoked. The debounced function comes with a `cancel` method to cancel\n     * delayed `func` invocations and a `flush` method to immediately invoke them.\n     * Provide `options` to indicate whether `func` should be invoked on the\n     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n     * with the last arguments provided to the debounced function. Subsequent\n     * calls to the debounced function return the result of the last `func`\n     * invocation.\n     *\n     * **Note:** If `leading` and `trailing` options are `true`, `func` is\n     * invoked on the trailing edge of the timeout only if the debounced function\n     * is invoked more than once during the `wait` timeout.\n     *\n     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n     * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n     *\n     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n     * for details over the differences between `_.debounce` and `_.throttle`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to debounce.\n     * @param {number} [wait=0] The number of milliseconds to delay.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.leading=false]\n     *  Specify invoking on the leading edge of the timeout.\n     * @param {number} [options.maxWait]\n     *  The maximum time `func` is allowed to be delayed before it's invoked.\n     * @param {boolean} [options.trailing=true]\n     *  Specify invoking on the trailing edge of the timeout.\n     * @returns {Function} Returns the new debounced function.\n     * @example\n     *\n     * // Avoid costly calculations while the window size is in flux.\n     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n     *\n     * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n     * jQuery(element).on('click', _.debounce(sendMail, 300, {\n     *   'leading': true,\n     *   'trailing': false\n     * }));\n     *\n     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n     * var source = new EventSource('/stream');\n     * jQuery(source).on('message', debounced);\n     *\n     * // Cancel the trailing debounced invocation.\n     * jQuery(window).on('popstate', debounced.cancel);\n     */\n    function debounce(func, wait, options) {\n      var lastArgs,\n          lastThis,\n          maxWait,\n          result,\n          timerId,\n          lastCallTime,\n          lastInvokeTime = 0,\n          leading = false,\n          maxing = false,\n          trailing = true;\n\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      wait = toNumber(wait) || 0;\n      if (isObject(options)) {\n        leading = !!options.leading;\n        maxing = 'maxWait' in options;\n        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n        trailing = 'trailing' in options ? !!options.trailing : trailing;\n      }\n\n      function invokeFunc(time) {\n        var args = lastArgs,\n            thisArg = lastThis;\n\n        lastArgs = lastThis = undefined;\n        lastInvokeTime = time;\n        result = func.apply(thisArg, args);\n        return result;\n      }\n\n      function leadingEdge(time) {\n        // Reset any `maxWait` timer.\n        lastInvokeTime = time;\n        // Start the timer for the trailing edge.\n        timerId = setTimeout(timerExpired, wait);\n        // Invoke the leading edge.\n        return leading ? invokeFunc(time) : result;\n      }\n\n      function remainingWait(time) {\n        var timeSinceLastCall = time - lastCallTime,\n            timeSinceLastInvoke = time - lastInvokeTime,\n            timeWaiting = wait - timeSinceLastCall;\n\n        return maxing\n          ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n          : timeWaiting;\n      }\n\n      function shouldInvoke(time) {\n        var timeSinceLastCall = time - lastCallTime,\n            timeSinceLastInvoke = time - lastInvokeTime;\n\n        // Either this is the first call, activity has stopped and we're at the\n        // trailing edge, the system time has gone backwards and we're treating\n        // it as the trailing edge, or we've hit the `maxWait` limit.\n        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n      }\n\n      function timerExpired() {\n        var time = now();\n        if (shouldInvoke(time)) {\n          return trailingEdge(time);\n        }\n        // Restart the timer.\n        timerId = setTimeout(timerExpired, remainingWait(time));\n      }\n\n      function trailingEdge(time) {\n        timerId = undefined;\n\n        // Only invoke if we have `lastArgs` which means `func` has been\n        // debounced at least once.\n        if (trailing && lastArgs) {\n          return invokeFunc(time);\n        }\n        lastArgs = lastThis = undefined;\n        return result;\n      }\n\n      function cancel() {\n        if (timerId !== undefined) {\n          clearTimeout(timerId);\n        }\n        lastInvokeTime = 0;\n        lastArgs = lastCallTime = lastThis = timerId = undefined;\n      }\n\n      function flush() {\n        return timerId === undefined ? result : trailingEdge(now());\n      }\n\n      function debounced() {\n        var time = now(),\n            isInvoking = shouldInvoke(time);\n\n        lastArgs = arguments;\n        lastThis = this;\n        lastCallTime = time;\n\n        if (isInvoking) {\n          if (timerId === undefined) {\n            return leadingEdge(lastCallTime);\n          }\n          if (maxing) {\n            // Handle invocations in a tight loop.\n            clearTimeout(timerId);\n            timerId = setTimeout(timerExpired, wait);\n            return invokeFunc(lastCallTime);\n          }\n        }\n        if (timerId === undefined) {\n          timerId = setTimeout(timerExpired, wait);\n        }\n        return result;\n      }\n      debounced.cancel = cancel;\n      debounced.flush = flush;\n      return debounced;\n    }\n\n    /**\n     * Defers invoking the `func` until the current call stack has cleared. Any\n     * additional arguments are provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to defer.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {number} Returns the timer id.\n     * @example\n     *\n     * _.defer(function(text) {\n     *   console.log(text);\n     * }, 'deferred');\n     * // => Logs 'deferred' after one millisecond.\n     */\n    var defer = baseRest(function(func, args) {\n      return baseDelay(func, 1, args);\n    });\n\n    /**\n     * Invokes `func` after `wait` milliseconds. Any additional arguments are\n     * provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to delay.\n     * @param {number} wait The number of milliseconds to delay invocation.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {number} Returns the timer id.\n     * @example\n     *\n     * _.delay(function(text) {\n     *   console.log(text);\n     * }, 1000, 'later');\n     * // => Logs 'later' after one second.\n     */\n    var delay = baseRest(function(func, wait, args) {\n      return baseDelay(func, toNumber(wait) || 0, args);\n    });\n\n    /**\n     * Creates a function that invokes `func` with arguments reversed.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to flip arguments for.\n     * @returns {Function} Returns the new flipped function.\n     * @example\n     *\n     * var flipped = _.flip(function() {\n     *   return _.toArray(arguments);\n     * });\n     *\n     * flipped('a', 'b', 'c', 'd');\n     * // => ['d', 'c', 'b', 'a']\n     */\n    function flip(func) {\n      return createWrap(func, WRAP_FLIP_FLAG);\n    }\n\n    /**\n     * Creates a function that memoizes the result of `func`. If `resolver` is\n     * provided, it determines the cache key for storing the result based on the\n     * arguments provided to the memoized function. By default, the first argument\n     * provided to the memoized function is used as the map cache key. The `func`\n     * is invoked with the `this` binding of the memoized function.\n     *\n     * **Note:** The cache is exposed as the `cache` property on the memoized\n     * function. Its creation may be customized by replacing the `_.memoize.Cache`\n     * constructor with one whose instances implement the\n     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n     * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to have its output memoized.\n     * @param {Function} [resolver] The function to resolve the cache key.\n     * @returns {Function} Returns the new memoized function.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     * var other = { 'c': 3, 'd': 4 };\n     *\n     * var values = _.memoize(_.values);\n     * values(object);\n     * // => [1, 2]\n     *\n     * values(other);\n     * // => [3, 4]\n     *\n     * object.a = 2;\n     * values(object);\n     * // => [1, 2]\n     *\n     * // Modify the result cache.\n     * values.cache.set(object, ['a', 'b']);\n     * values(object);\n     * // => ['a', 'b']\n     *\n     * // Replace `_.memoize.Cache`.\n     * _.memoize.Cache = WeakMap;\n     */\n    function memoize(func, resolver) {\n      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      var memoized = function() {\n        var args = arguments,\n            key = resolver ? resolver.apply(this, args) : args[0],\n            cache = memoized.cache;\n\n        if (cache.has(key)) {\n          return cache.get(key);\n        }\n        var result = func.apply(this, args);\n        memoized.cache = cache.set(key, result) || cache;\n        return result;\n      };\n      memoized.cache = new (memoize.Cache || MapCache);\n      return memoized;\n    }\n\n    // Expose `MapCache`.\n    memoize.Cache = MapCache;\n\n    /**\n     * Creates a function that negates the result of the predicate `func`. The\n     * `func` predicate is invoked with the `this` binding and arguments of the\n     * created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} predicate The predicate to negate.\n     * @returns {Function} Returns the new negated function.\n     * @example\n     *\n     * function isEven(n) {\n     *   return n % 2 == 0;\n     * }\n     *\n     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n     * // => [1, 3, 5]\n     */\n    function negate(predicate) {\n      if (typeof predicate != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      return function() {\n        var args = arguments;\n        switch (args.length) {\n          case 0: return !predicate.call(this);\n          case 1: return !predicate.call(this, args[0]);\n          case 2: return !predicate.call(this, args[0], args[1]);\n          case 3: return !predicate.call(this, args[0], args[1], args[2]);\n        }\n        return !predicate.apply(this, args);\n      };\n    }\n\n    /**\n     * Creates a function that is restricted to invoking `func` once. Repeat calls\n     * to the function return the value of the first invocation. The `func` is\n     * invoked with the `this` binding and arguments of the created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to restrict.\n     * @returns {Function} Returns the new restricted function.\n     * @example\n     *\n     * var initialize = _.once(createApplication);\n     * initialize();\n     * initialize();\n     * // => `createApplication` is invoked once\n     */\n    function once(func) {\n      return before(2, func);\n    }\n\n    /**\n     * Creates a function that invokes `func` with its arguments transformed.\n     *\n     * @static\n     * @since 4.0.0\n     * @memberOf _\n     * @category Function\n     * @param {Function} func The function to wrap.\n     * @param {...(Function|Function[])} [transforms=[_.identity]]\n     *  The argument transforms.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * function doubled(n) {\n     *   return n * 2;\n     * }\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var func = _.overArgs(function(x, y) {\n     *   return [x, y];\n     * }, [square, doubled]);\n     *\n     * func(9, 3);\n     * // => [81, 6]\n     *\n     * func(10, 5);\n     * // => [100, 10]\n     */\n    var overArgs = castRest(function(func, transforms) {\n      transforms = (transforms.length == 1 && isArray(transforms[0]))\n        ? arrayMap(transforms[0], baseUnary(getIteratee()))\n        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n      var funcsLength = transforms.length;\n      return baseRest(function(args) {\n        var index = -1,\n            length = nativeMin(args.length, funcsLength);\n\n        while (++index < length) {\n          args[index] = transforms[index].call(this, args[index]);\n        }\n        return apply(func, this, args);\n      });\n    });\n\n    /**\n     * Creates a function that invokes `func` with `partials` prepended to the\n     * arguments it receives. This method is like `_.bind` except it does **not**\n     * alter the `this` binding.\n     *\n     * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of partially\n     * applied functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.2.0\n     * @category Function\n     * @param {Function} func The function to partially apply arguments to.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new partially applied function.\n     * @example\n     *\n     * function greet(greeting, name) {\n     *   return greeting + ' ' + name;\n     * }\n     *\n     * var sayHelloTo = _.partial(greet, 'hello');\n     * sayHelloTo('fred');\n     * // => 'hello fred'\n     *\n     * // Partially applied with placeholders.\n     * var greetFred = _.partial(greet, _, 'fred');\n     * greetFred('hi');\n     * // => 'hi fred'\n     */\n    var partial = baseRest(function(func, partials) {\n      var holders = replaceHolders(partials, getHolder(partial));\n      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n    });\n\n    /**\n     * This method is like `_.partial` except that partially applied arguments\n     * are appended to the arguments it receives.\n     *\n     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n     * builds, may be used as a placeholder for partially applied arguments.\n     *\n     * **Note:** This method doesn't set the \"length\" property of partially\n     * applied functions.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Function\n     * @param {Function} func The function to partially apply arguments to.\n     * @param {...*} [partials] The arguments to be partially applied.\n     * @returns {Function} Returns the new partially applied function.\n     * @example\n     *\n     * function greet(greeting, name) {\n     *   return greeting + ' ' + name;\n     * }\n     *\n     * var greetFred = _.partialRight(greet, 'fred');\n     * greetFred('hi');\n     * // => 'hi fred'\n     *\n     * // Partially applied with placeholders.\n     * var sayHelloTo = _.partialRight(greet, 'hello', _);\n     * sayHelloTo('fred');\n     * // => 'hello fred'\n     */\n    var partialRight = baseRest(function(func, partials) {\n      var holders = replaceHolders(partials, getHolder(partialRight));\n      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n    });\n\n    /**\n     * Creates a function that invokes `func` with arguments arranged according\n     * to the specified `indexes` where the argument value at the first index is\n     * provided as the first argument, the argument value at the second index is\n     * provided as the second argument, and so on.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Function\n     * @param {Function} func The function to rearrange arguments for.\n     * @param {...(number|number[])} indexes The arranged argument indexes.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var rearged = _.rearg(function(a, b, c) {\n     *   return [a, b, c];\n     * }, [2, 0, 1]);\n     *\n     * rearged('b', 'c', 'a')\n     * // => ['a', 'b', 'c']\n     */\n    var rearg = flatRest(function(func, indexes) {\n      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n    });\n\n    /**\n     * Creates a function that invokes `func` with the `this` binding of the\n     * created function and arguments from `start` and beyond provided as\n     * an array.\n     *\n     * **Note:** This method is based on the\n     * [rest parameter](https://mdn.io/rest_parameters).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to apply a rest parameter to.\n     * @param {number} [start=func.length-1] The start position of the rest parameter.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var say = _.rest(function(what, names) {\n     *   return what + ' ' + _.initial(names).join(', ') +\n     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n     * });\n     *\n     * say('hello', 'fred', 'barney', 'pebbles');\n     * // => 'hello fred, barney, & pebbles'\n     */\n    function rest(func, start) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      start = start === undefined ? start : toInteger(start);\n      return baseRest(func, start);\n    }\n\n    /**\n     * Creates a function that invokes `func` with the `this` binding of the\n     * create function and an array of arguments much like\n     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n     *\n     * **Note:** This method is based on the\n     * [spread operator](https://mdn.io/spread_operator).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Function\n     * @param {Function} func The function to spread arguments over.\n     * @param {number} [start=0] The start position of the spread.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var say = _.spread(function(who, what) {\n     *   return who + ' says ' + what;\n     * });\n     *\n     * say(['fred', 'hello']);\n     * // => 'fred says hello'\n     *\n     * var numbers = Promise.all([\n     *   Promise.resolve(40),\n     *   Promise.resolve(36)\n     * ]);\n     *\n     * numbers.then(_.spread(function(x, y) {\n     *   return x + y;\n     * }));\n     * // => a Promise of 76\n     */\n    function spread(func, start) {\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      start = start == null ? 0 : nativeMax(toInteger(start), 0);\n      return baseRest(function(args) {\n        var array = args[start],\n            otherArgs = castSlice(args, 0, start);\n\n        if (array) {\n          arrayPush(otherArgs, array);\n        }\n        return apply(func, this, otherArgs);\n      });\n    }\n\n    /**\n     * Creates a throttled function that only invokes `func` at most once per\n     * every `wait` milliseconds. The throttled function comes with a `cancel`\n     * method to cancel delayed `func` invocations and a `flush` method to\n     * immediately invoke them. Provide `options` to indicate whether `func`\n     * should be invoked on the leading and/or trailing edge of the `wait`\n     * timeout. The `func` is invoked with the last arguments provided to the\n     * throttled function. Subsequent calls to the throttled function return the\n     * result of the last `func` invocation.\n     *\n     * **Note:** If `leading` and `trailing` options are `true`, `func` is\n     * invoked on the trailing edge of the timeout only if the throttled function\n     * is invoked more than once during the `wait` timeout.\n     *\n     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n     * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n     *\n     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n     * for details over the differences between `_.throttle` and `_.debounce`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {Function} func The function to throttle.\n     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.leading=true]\n     *  Specify invoking on the leading edge of the timeout.\n     * @param {boolean} [options.trailing=true]\n     *  Specify invoking on the trailing edge of the timeout.\n     * @returns {Function} Returns the new throttled function.\n     * @example\n     *\n     * // Avoid excessively updating the position while scrolling.\n     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n     *\n     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n     * jQuery(element).on('click', throttled);\n     *\n     * // Cancel the trailing throttled invocation.\n     * jQuery(window).on('popstate', throttled.cancel);\n     */\n    function throttle(func, wait, options) {\n      var leading = true,\n          trailing = true;\n\n      if (typeof func != 'function') {\n        throw new TypeError(FUNC_ERROR_TEXT);\n      }\n      if (isObject(options)) {\n        leading = 'leading' in options ? !!options.leading : leading;\n        trailing = 'trailing' in options ? !!options.trailing : trailing;\n      }\n      return debounce(func, wait, {\n        'leading': leading,\n        'maxWait': wait,\n        'trailing': trailing\n      });\n    }\n\n    /**\n     * Creates a function that accepts up to one argument, ignoring any\n     * additional arguments.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Function\n     * @param {Function} func The function to cap arguments for.\n     * @returns {Function} Returns the new capped function.\n     * @example\n     *\n     * _.map(['6', '8', '10'], _.unary(parseInt));\n     * // => [6, 8, 10]\n     */\n    function unary(func) {\n      return ary(func, 1);\n    }\n\n    /**\n     * Creates a function that provides `value` to `wrapper` as its first\n     * argument. Any additional arguments provided to the function are appended\n     * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n     * binding of the created function.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Function\n     * @param {*} value The value to wrap.\n     * @param {Function} [wrapper=identity] The wrapper function.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var p = _.wrap(_.escape, function(func, text) {\n     *   return '<p>' + func(text) + '</p>';\n     * });\n     *\n     * p('fred, barney, & pebbles');\n     * // => '<p>fred, barney, &amp; pebbles</p>'\n     */\n    function wrap(value, wrapper) {\n      return partial(castFunction(wrapper), value);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Casts `value` as an array if it's not one.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.4.0\n     * @category Lang\n     * @param {*} value The value to inspect.\n     * @returns {Array} Returns the cast array.\n     * @example\n     *\n     * _.castArray(1);\n     * // => [1]\n     *\n     * _.castArray({ 'a': 1 });\n     * // => [{ 'a': 1 }]\n     *\n     * _.castArray('abc');\n     * // => ['abc']\n     *\n     * _.castArray(null);\n     * // => [null]\n     *\n     * _.castArray(undefined);\n     * // => [undefined]\n     *\n     * _.castArray();\n     * // => []\n     *\n     * var array = [1, 2, 3];\n     * console.log(_.castArray(array) === array);\n     * // => true\n     */\n    function castArray() {\n      if (!arguments.length) {\n        return [];\n      }\n      var value = arguments[0];\n      return isArray(value) ? value : [value];\n    }\n\n    /**\n     * Creates a shallow clone of `value`.\n     *\n     * **Note:** This method is loosely based on the\n     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n     * and supports cloning arrays, array buffers, booleans, date objects, maps,\n     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n     * arrays. The own enumerable properties of `arguments` objects are cloned\n     * as plain objects. An empty object is returned for uncloneable values such\n     * as error objects, functions, DOM nodes, and WeakMaps.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to clone.\n     * @returns {*} Returns the cloned value.\n     * @see _.cloneDeep\n     * @example\n     *\n     * var objects = [{ 'a': 1 }, { 'b': 2 }];\n     *\n     * var shallow = _.clone(objects);\n     * console.log(shallow[0] === objects[0]);\n     * // => true\n     */\n    function clone(value) {\n      return baseClone(value, CLONE_SYMBOLS_FLAG);\n    }\n\n    /**\n     * This method is like `_.clone` except that it accepts `customizer` which\n     * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n     * cloning is handled by the method instead. The `customizer` is invoked with\n     * up to four arguments; (value [, index|key, object, stack]).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to clone.\n     * @param {Function} [customizer] The function to customize cloning.\n     * @returns {*} Returns the cloned value.\n     * @see _.cloneDeepWith\n     * @example\n     *\n     * function customizer(value) {\n     *   if (_.isElement(value)) {\n     *     return value.cloneNode(false);\n     *   }\n     * }\n     *\n     * var el = _.cloneWith(document.body, customizer);\n     *\n     * console.log(el === document.body);\n     * // => false\n     * console.log(el.nodeName);\n     * // => 'BODY'\n     * console.log(el.childNodes.length);\n     * // => 0\n     */\n    function cloneWith(value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n    }\n\n    /**\n     * This method is like `_.clone` except that it recursively clones `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Lang\n     * @param {*} value The value to recursively clone.\n     * @returns {*} Returns the deep cloned value.\n     * @see _.clone\n     * @example\n     *\n     * var objects = [{ 'a': 1 }, { 'b': 2 }];\n     *\n     * var deep = _.cloneDeep(objects);\n     * console.log(deep[0] === objects[0]);\n     * // => false\n     */\n    function cloneDeep(value) {\n      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n    }\n\n    /**\n     * This method is like `_.cloneWith` except that it recursively clones `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to recursively clone.\n     * @param {Function} [customizer] The function to customize cloning.\n     * @returns {*} Returns the deep cloned value.\n     * @see _.cloneWith\n     * @example\n     *\n     * function customizer(value) {\n     *   if (_.isElement(value)) {\n     *     return value.cloneNode(true);\n     *   }\n     * }\n     *\n     * var el = _.cloneDeepWith(document.body, customizer);\n     *\n     * console.log(el === document.body);\n     * // => false\n     * console.log(el.nodeName);\n     * // => 'BODY'\n     * console.log(el.childNodes.length);\n     * // => 20\n     */\n    function cloneDeepWith(value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n    }\n\n    /**\n     * Checks if `object` conforms to `source` by invoking the predicate\n     * properties of `source` with the corresponding property values of `object`.\n     *\n     * **Note:** This method is equivalent to `_.conforms` when `source` is\n     * partially applied.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.14.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     *\n     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n     * // => true\n     *\n     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n     * // => false\n     */\n    function conformsTo(object, source) {\n      return source == null || baseConformsTo(object, source, keys(source));\n    }\n\n    /**\n     * Performs a\n     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n     * comparison between two values to determine if they are equivalent.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     * var other = { 'a': 1 };\n     *\n     * _.eq(object, object);\n     * // => true\n     *\n     * _.eq(object, other);\n     * // => false\n     *\n     * _.eq('a', 'a');\n     * // => true\n     *\n     * _.eq('a', Object('a'));\n     * // => false\n     *\n     * _.eq(NaN, NaN);\n     * // => true\n     */\n    function eq(value, other) {\n      return value === other || (value !== value && other !== other);\n    }\n\n    /**\n     * Checks if `value` is greater than `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than `other`,\n     *  else `false`.\n     * @see _.lt\n     * @example\n     *\n     * _.gt(3, 1);\n     * // => true\n     *\n     * _.gt(3, 3);\n     * // => false\n     *\n     * _.gt(1, 3);\n     * // => false\n     */\n    var gt = createRelationalOperation(baseGt);\n\n    /**\n     * Checks if `value` is greater than or equal to `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is greater than or equal to\n     *  `other`, else `false`.\n     * @see _.lte\n     * @example\n     *\n     * _.gte(3, 1);\n     * // => true\n     *\n     * _.gte(3, 3);\n     * // => true\n     *\n     * _.gte(1, 3);\n     * // => false\n     */\n    var gte = createRelationalOperation(function(value, other) {\n      return value >= other;\n    });\n\n    /**\n     * Checks if `value` is likely an `arguments` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n     *  else `false`.\n     * @example\n     *\n     * _.isArguments(function() { return arguments; }());\n     * // => true\n     *\n     * _.isArguments([1, 2, 3]);\n     * // => false\n     */\n    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n        !propertyIsEnumerable.call(value, 'callee');\n    };\n\n    /**\n     * Checks if `value` is classified as an `Array` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n     * @example\n     *\n     * _.isArray([1, 2, 3]);\n     * // => true\n     *\n     * _.isArray(document.body.children);\n     * // => false\n     *\n     * _.isArray('abc');\n     * // => false\n     *\n     * _.isArray(_.noop);\n     * // => false\n     */\n    var isArray = Array.isArray;\n\n    /**\n     * Checks if `value` is classified as an `ArrayBuffer` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n     * @example\n     *\n     * _.isArrayBuffer(new ArrayBuffer(2));\n     * // => true\n     *\n     * _.isArrayBuffer(new Array(2));\n     * // => false\n     */\n    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n    /**\n     * Checks if `value` is array-like. A value is considered array-like if it's\n     * not a function and has a `value.length` that's an integer greater than or\n     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n     * @example\n     *\n     * _.isArrayLike([1, 2, 3]);\n     * // => true\n     *\n     * _.isArrayLike(document.body.children);\n     * // => true\n     *\n     * _.isArrayLike('abc');\n     * // => true\n     *\n     * _.isArrayLike(_.noop);\n     * // => false\n     */\n    function isArrayLike(value) {\n      return value != null && isLength(value.length) && !isFunction(value);\n    }\n\n    /**\n     * This method is like `_.isArrayLike` except that it also checks if `value`\n     * is an object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an array-like object,\n     *  else `false`.\n     * @example\n     *\n     * _.isArrayLikeObject([1, 2, 3]);\n     * // => true\n     *\n     * _.isArrayLikeObject(document.body.children);\n     * // => true\n     *\n     * _.isArrayLikeObject('abc');\n     * // => false\n     *\n     * _.isArrayLikeObject(_.noop);\n     * // => false\n     */\n    function isArrayLikeObject(value) {\n      return isObjectLike(value) && isArrayLike(value);\n    }\n\n    /**\n     * Checks if `value` is classified as a boolean primitive or object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n     * @example\n     *\n     * _.isBoolean(false);\n     * // => true\n     *\n     * _.isBoolean(null);\n     * // => false\n     */\n    function isBoolean(value) {\n      return value === true || value === false ||\n        (isObjectLike(value) && baseGetTag(value) == boolTag);\n    }\n\n    /**\n     * Checks if `value` is a buffer.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n     * @example\n     *\n     * _.isBuffer(new Buffer(2));\n     * // => true\n     *\n     * _.isBuffer(new Uint8Array(2));\n     * // => false\n     */\n    var isBuffer = nativeIsBuffer || stubFalse;\n\n    /**\n     * Checks if `value` is classified as a `Date` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n     * @example\n     *\n     * _.isDate(new Date);\n     * // => true\n     *\n     * _.isDate('Mon April 23 2012');\n     * // => false\n     */\n    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n    /**\n     * Checks if `value` is likely a DOM element.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n     * @example\n     *\n     * _.isElement(document.body);\n     * // => true\n     *\n     * _.isElement('<body>');\n     * // => false\n     */\n    function isElement(value) {\n      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n    }\n\n    /**\n     * Checks if `value` is an empty object, collection, map, or set.\n     *\n     * Objects are considered empty if they have no own enumerable string keyed\n     * properties.\n     *\n     * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n     * jQuery-like collections are considered empty if they have a `length` of `0`.\n     * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n     * @example\n     *\n     * _.isEmpty(null);\n     * // => true\n     *\n     * _.isEmpty(true);\n     * // => true\n     *\n     * _.isEmpty(1);\n     * // => true\n     *\n     * _.isEmpty([1, 2, 3]);\n     * // => false\n     *\n     * _.isEmpty({ 'a': 1 });\n     * // => false\n     */\n    function isEmpty(value) {\n      if (value == null) {\n        return true;\n      }\n      if (isArrayLike(value) &&\n          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n            isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n        return !value.length;\n      }\n      var tag = getTag(value);\n      if (tag == mapTag || tag == setTag) {\n        return !value.size;\n      }\n      if (isPrototype(value)) {\n        return !baseKeys(value).length;\n      }\n      for (var key in value) {\n        if (hasOwnProperty.call(value, key)) {\n          return false;\n        }\n      }\n      return true;\n    }\n\n    /**\n     * Performs a deep comparison between two values to determine if they are\n     * equivalent.\n     *\n     * **Note:** This method supports comparing arrays, array buffers, booleans,\n     * date objects, error objects, maps, numbers, `Object` objects, regexes,\n     * sets, strings, symbols, and typed arrays. `Object` objects are compared\n     * by their own, not inherited, enumerable properties. Functions and DOM\n     * nodes are compared by strict equality, i.e. `===`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     * var other = { 'a': 1 };\n     *\n     * _.isEqual(object, other);\n     * // => true\n     *\n     * object === other;\n     * // => false\n     */\n    function isEqual(value, other) {\n      return baseIsEqual(value, other);\n    }\n\n    /**\n     * This method is like `_.isEqual` except that it accepts `customizer` which\n     * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n     * are handled by the method instead. The `customizer` is invoked with up to\n     * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n     * @example\n     *\n     * function isGreeting(value) {\n     *   return /^h(?:i|ello)$/.test(value);\n     * }\n     *\n     * function customizer(objValue, othValue) {\n     *   if (isGreeting(objValue) && isGreeting(othValue)) {\n     *     return true;\n     *   }\n     * }\n     *\n     * var array = ['hello', 'goodbye'];\n     * var other = ['hi', 'goodbye'];\n     *\n     * _.isEqualWith(array, other, customizer);\n     * // => true\n     */\n    function isEqualWith(value, other, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      var result = customizer ? customizer(value, other) : undefined;\n      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n    }\n\n    /**\n     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n     * `SyntaxError`, `TypeError`, or `URIError` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n     * @example\n     *\n     * _.isError(new Error);\n     * // => true\n     *\n     * _.isError(Error);\n     * // => false\n     */\n    function isError(value) {\n      if (!isObjectLike(value)) {\n        return false;\n      }\n      var tag = baseGetTag(value);\n      return tag == errorTag || tag == domExcTag ||\n        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n    }\n\n    /**\n     * Checks if `value` is a finite primitive number.\n     *\n     * **Note:** This method is based on\n     * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n     * @example\n     *\n     * _.isFinite(3);\n     * // => true\n     *\n     * _.isFinite(Number.MIN_VALUE);\n     * // => true\n     *\n     * _.isFinite(Infinity);\n     * // => false\n     *\n     * _.isFinite('3');\n     * // => false\n     */\n    function isFinite(value) {\n      return typeof value == 'number' && nativeIsFinite(value);\n    }\n\n    /**\n     * Checks if `value` is classified as a `Function` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n     * @example\n     *\n     * _.isFunction(_);\n     * // => true\n     *\n     * _.isFunction(/abc/);\n     * // => false\n     */\n    function isFunction(value) {\n      if (!isObject(value)) {\n        return false;\n      }\n      // The use of `Object#toString` avoids issues with the `typeof` operator\n      // in Safari 9 which returns 'object' for typed arrays and other constructors.\n      var tag = baseGetTag(value);\n      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n    }\n\n    /**\n     * Checks if `value` is an integer.\n     *\n     * **Note:** This method is based on\n     * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n     * @example\n     *\n     * _.isInteger(3);\n     * // => true\n     *\n     * _.isInteger(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isInteger(Infinity);\n     * // => false\n     *\n     * _.isInteger('3');\n     * // => false\n     */\n    function isInteger(value) {\n      return typeof value == 'number' && value == toInteger(value);\n    }\n\n    /**\n     * Checks if `value` is a valid array-like length.\n     *\n     * **Note:** This method is loosely based on\n     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n     * @example\n     *\n     * _.isLength(3);\n     * // => true\n     *\n     * _.isLength(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isLength(Infinity);\n     * // => false\n     *\n     * _.isLength('3');\n     * // => false\n     */\n    function isLength(value) {\n      return typeof value == 'number' &&\n        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n    }\n\n    /**\n     * Checks if `value` is the\n     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n     * @example\n     *\n     * _.isObject({});\n     * // => true\n     *\n     * _.isObject([1, 2, 3]);\n     * // => true\n     *\n     * _.isObject(_.noop);\n     * // => true\n     *\n     * _.isObject(null);\n     * // => false\n     */\n    function isObject(value) {\n      var type = typeof value;\n      return value != null && (type == 'object' || type == 'function');\n    }\n\n    /**\n     * Checks if `value` is object-like. A value is object-like if it's not `null`\n     * and has a `typeof` result of \"object\".\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n     * @example\n     *\n     * _.isObjectLike({});\n     * // => true\n     *\n     * _.isObjectLike([1, 2, 3]);\n     * // => true\n     *\n     * _.isObjectLike(_.noop);\n     * // => false\n     *\n     * _.isObjectLike(null);\n     * // => false\n     */\n    function isObjectLike(value) {\n      return value != null && typeof value == 'object';\n    }\n\n    /**\n     * Checks if `value` is classified as a `Map` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n     * @example\n     *\n     * _.isMap(new Map);\n     * // => true\n     *\n     * _.isMap(new WeakMap);\n     * // => false\n     */\n    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n    /**\n     * Performs a partial deep comparison between `object` and `source` to\n     * determine if `object` contains equivalent property values.\n     *\n     * **Note:** This method is equivalent to `_.matches` when `source` is\n     * partially applied.\n     *\n     * Partial comparisons will match empty array and empty object `source`\n     * values against any array or object value, respectively. See `_.isEqual`\n     * for a list of supported value comparisons.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2 };\n     *\n     * _.isMatch(object, { 'b': 2 });\n     * // => true\n     *\n     * _.isMatch(object, { 'b': 1 });\n     * // => false\n     */\n    function isMatch(object, source) {\n      return object === source || baseIsMatch(object, source, getMatchData(source));\n    }\n\n    /**\n     * This method is like `_.isMatch` except that it accepts `customizer` which\n     * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n     * are handled by the method instead. The `customizer` is invoked with five\n     * arguments: (objValue, srcValue, index|key, object, source).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {Object} object The object to inspect.\n     * @param {Object} source The object of property values to match.\n     * @param {Function} [customizer] The function to customize comparisons.\n     * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n     * @example\n     *\n     * function isGreeting(value) {\n     *   return /^h(?:i|ello)$/.test(value);\n     * }\n     *\n     * function customizer(objValue, srcValue) {\n     *   if (isGreeting(objValue) && isGreeting(srcValue)) {\n     *     return true;\n     *   }\n     * }\n     *\n     * var object = { 'greeting': 'hello' };\n     * var source = { 'greeting': 'hi' };\n     *\n     * _.isMatchWith(object, source, customizer);\n     * // => true\n     */\n    function isMatchWith(object, source, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return baseIsMatch(object, source, getMatchData(source), customizer);\n    }\n\n    /**\n     * Checks if `value` is `NaN`.\n     *\n     * **Note:** This method is based on\n     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n     * `undefined` and other non-number values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n     * @example\n     *\n     * _.isNaN(NaN);\n     * // => true\n     *\n     * _.isNaN(new Number(NaN));\n     * // => true\n     *\n     * isNaN(undefined);\n     * // => true\n     *\n     * _.isNaN(undefined);\n     * // => false\n     */\n    function isNaN(value) {\n      // An `NaN` primitive is the only value that is not equal to itself.\n      // Perform the `toStringTag` check first to avoid errors with some\n      // ActiveX objects in IE.\n      return isNumber(value) && value != +value;\n    }\n\n    /**\n     * Checks if `value` is a pristine native function.\n     *\n     * **Note:** This method can't reliably detect native functions in the presence\n     * of the core-js package because core-js circumvents this kind of detection.\n     * Despite multiple requests, the core-js maintainer has made it clear: any\n     * attempt to fix the detection will be obstructed. As a result, we're left\n     * with little choice but to throw an error. Unfortunately, this also affects\n     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n     * which rely on core-js.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a native function,\n     *  else `false`.\n     * @example\n     *\n     * _.isNative(Array.prototype.push);\n     * // => true\n     *\n     * _.isNative(_);\n     * // => false\n     */\n    function isNative(value) {\n      if (isMaskable(value)) {\n        throw new Error(CORE_ERROR_TEXT);\n      }\n      return baseIsNative(value);\n    }\n\n    /**\n     * Checks if `value` is `null`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n     * @example\n     *\n     * _.isNull(null);\n     * // => true\n     *\n     * _.isNull(void 0);\n     * // => false\n     */\n    function isNull(value) {\n      return value === null;\n    }\n\n    /**\n     * Checks if `value` is `null` or `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n     * @example\n     *\n     * _.isNil(null);\n     * // => true\n     *\n     * _.isNil(void 0);\n     * // => true\n     *\n     * _.isNil(NaN);\n     * // => false\n     */\n    function isNil(value) {\n      return value == null;\n    }\n\n    /**\n     * Checks if `value` is classified as a `Number` primitive or object.\n     *\n     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n     * classified as numbers, use the `_.isFinite` method.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n     * @example\n     *\n     * _.isNumber(3);\n     * // => true\n     *\n     * _.isNumber(Number.MIN_VALUE);\n     * // => true\n     *\n     * _.isNumber(Infinity);\n     * // => true\n     *\n     * _.isNumber('3');\n     * // => false\n     */\n    function isNumber(value) {\n      return typeof value == 'number' ||\n        (isObjectLike(value) && baseGetTag(value) == numberTag);\n    }\n\n    /**\n     * Checks if `value` is a plain object, that is, an object created by the\n     * `Object` constructor or one with a `[[Prototype]]` of `null`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.8.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * _.isPlainObject(new Foo);\n     * // => false\n     *\n     * _.isPlainObject([1, 2, 3]);\n     * // => false\n     *\n     * _.isPlainObject({ 'x': 0, 'y': 0 });\n     * // => true\n     *\n     * _.isPlainObject(Object.create(null));\n     * // => true\n     */\n    function isPlainObject(value) {\n      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n        return false;\n      }\n      var proto = getPrototype(value);\n      if (proto === null) {\n        return true;\n      }\n      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n      return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n        funcToString.call(Ctor) == objectCtorString;\n    }\n\n    /**\n     * Checks if `value` is classified as a `RegExp` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.1.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n     * @example\n     *\n     * _.isRegExp(/abc/);\n     * // => true\n     *\n     * _.isRegExp('/abc/');\n     * // => false\n     */\n    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n    /**\n     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n     * double precision number which isn't the result of a rounded unsafe integer.\n     *\n     * **Note:** This method is based on\n     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n     * @example\n     *\n     * _.isSafeInteger(3);\n     * // => true\n     *\n     * _.isSafeInteger(Number.MIN_VALUE);\n     * // => false\n     *\n     * _.isSafeInteger(Infinity);\n     * // => false\n     *\n     * _.isSafeInteger('3');\n     * // => false\n     */\n    function isSafeInteger(value) {\n      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n    }\n\n    /**\n     * Checks if `value` is classified as a `Set` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n     * @example\n     *\n     * _.isSet(new Set);\n     * // => true\n     *\n     * _.isSet(new WeakSet);\n     * // => false\n     */\n    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n    /**\n     * Checks if `value` is classified as a `String` primitive or object.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n     * @example\n     *\n     * _.isString('abc');\n     * // => true\n     *\n     * _.isString(1);\n     * // => false\n     */\n    function isString(value) {\n      return typeof value == 'string' ||\n        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n    }\n\n    /**\n     * Checks if `value` is classified as a `Symbol` primitive or object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n     * @example\n     *\n     * _.isSymbol(Symbol.iterator);\n     * // => true\n     *\n     * _.isSymbol('abc');\n     * // => false\n     */\n    function isSymbol(value) {\n      return typeof value == 'symbol' ||\n        (isObjectLike(value) && baseGetTag(value) == symbolTag);\n    }\n\n    /**\n     * Checks if `value` is classified as a typed array.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n     * @example\n     *\n     * _.isTypedArray(new Uint8Array);\n     * // => true\n     *\n     * _.isTypedArray([]);\n     * // => false\n     */\n    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n    /**\n     * Checks if `value` is `undefined`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n     * @example\n     *\n     * _.isUndefined(void 0);\n     * // => true\n     *\n     * _.isUndefined(null);\n     * // => false\n     */\n    function isUndefined(value) {\n      return value === undefined;\n    }\n\n    /**\n     * Checks if `value` is classified as a `WeakMap` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n     * @example\n     *\n     * _.isWeakMap(new WeakMap);\n     * // => true\n     *\n     * _.isWeakMap(new Map);\n     * // => false\n     */\n    function isWeakMap(value) {\n      return isObjectLike(value) && getTag(value) == weakMapTag;\n    }\n\n    /**\n     * Checks if `value` is classified as a `WeakSet` object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.3.0\n     * @category Lang\n     * @param {*} value The value to check.\n     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n     * @example\n     *\n     * _.isWeakSet(new WeakSet);\n     * // => true\n     *\n     * _.isWeakSet(new Set);\n     * // => false\n     */\n    function isWeakSet(value) {\n      return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n    }\n\n    /**\n     * Checks if `value` is less than `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than `other`,\n     *  else `false`.\n     * @see _.gt\n     * @example\n     *\n     * _.lt(1, 3);\n     * // => true\n     *\n     * _.lt(3, 3);\n     * // => false\n     *\n     * _.lt(3, 1);\n     * // => false\n     */\n    var lt = createRelationalOperation(baseLt);\n\n    /**\n     * Checks if `value` is less than or equal to `other`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.9.0\n     * @category Lang\n     * @param {*} value The value to compare.\n     * @param {*} other The other value to compare.\n     * @returns {boolean} Returns `true` if `value` is less than or equal to\n     *  `other`, else `false`.\n     * @see _.gte\n     * @example\n     *\n     * _.lte(1, 3);\n     * // => true\n     *\n     * _.lte(3, 3);\n     * // => true\n     *\n     * _.lte(3, 1);\n     * // => false\n     */\n    var lte = createRelationalOperation(function(value, other) {\n      return value <= other;\n    });\n\n    /**\n     * Converts `value` to an array.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {Array} Returns the converted array.\n     * @example\n     *\n     * _.toArray({ 'a': 1, 'b': 2 });\n     * // => [1, 2]\n     *\n     * _.toArray('abc');\n     * // => ['a', 'b', 'c']\n     *\n     * _.toArray(1);\n     * // => []\n     *\n     * _.toArray(null);\n     * // => []\n     */\n    function toArray(value) {\n      if (!value) {\n        return [];\n      }\n      if (isArrayLike(value)) {\n        return isString(value) ? stringToArray(value) : copyArray(value);\n      }\n      if (symIterator && value[symIterator]) {\n        return iteratorToArray(value[symIterator]());\n      }\n      var tag = getTag(value),\n          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n      return func(value);\n    }\n\n    /**\n     * Converts `value` to a finite number.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.12.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted number.\n     * @example\n     *\n     * _.toFinite(3.2);\n     * // => 3.2\n     *\n     * _.toFinite(Number.MIN_VALUE);\n     * // => 5e-324\n     *\n     * _.toFinite(Infinity);\n     * // => 1.7976931348623157e+308\n     *\n     * _.toFinite('3.2');\n     * // => 3.2\n     */\n    function toFinite(value) {\n      if (!value) {\n        return value === 0 ? value : 0;\n      }\n      value = toNumber(value);\n      if (value === INFINITY || value === -INFINITY) {\n        var sign = (value < 0 ? -1 : 1);\n        return sign * MAX_INTEGER;\n      }\n      return value === value ? value : 0;\n    }\n\n    /**\n     * Converts `value` to an integer.\n     *\n     * **Note:** This method is loosely based on\n     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toInteger(3.2);\n     * // => 3\n     *\n     * _.toInteger(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toInteger(Infinity);\n     * // => 1.7976931348623157e+308\n     *\n     * _.toInteger('3.2');\n     * // => 3\n     */\n    function toInteger(value) {\n      var result = toFinite(value),\n          remainder = result % 1;\n\n      return result === result ? (remainder ? result - remainder : result) : 0;\n    }\n\n    /**\n     * Converts `value` to an integer suitable for use as the length of an\n     * array-like object.\n     *\n     * **Note:** This method is based on\n     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toLength(3.2);\n     * // => 3\n     *\n     * _.toLength(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toLength(Infinity);\n     * // => 4294967295\n     *\n     * _.toLength('3.2');\n     * // => 3\n     */\n    function toLength(value) {\n      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n    }\n\n    /**\n     * Converts `value` to a number.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to process.\n     * @returns {number} Returns the number.\n     * @example\n     *\n     * _.toNumber(3.2);\n     * // => 3.2\n     *\n     * _.toNumber(Number.MIN_VALUE);\n     * // => 5e-324\n     *\n     * _.toNumber(Infinity);\n     * // => Infinity\n     *\n     * _.toNumber('3.2');\n     * // => 3.2\n     */\n    function toNumber(value) {\n      if (typeof value == 'number') {\n        return value;\n      }\n      if (isSymbol(value)) {\n        return NAN;\n      }\n      if (isObject(value)) {\n        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n        value = isObject(other) ? (other + '') : other;\n      }\n      if (typeof value != 'string') {\n        return value === 0 ? value : +value;\n      }\n      value = baseTrim(value);\n      var isBinary = reIsBinary.test(value);\n      return (isBinary || reIsOctal.test(value))\n        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n        : (reIsBadHex.test(value) ? NAN : +value);\n    }\n\n    /**\n     * Converts `value` to a plain object flattening inherited enumerable string\n     * keyed properties of `value` to own properties of the plain object.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {Object} Returns the converted plain object.\n     * @example\n     *\n     * function Foo() {\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.assign({ 'a': 1 }, new Foo);\n     * // => { 'a': 1, 'b': 2 }\n     *\n     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n     * // => { 'a': 1, 'b': 2, 'c': 3 }\n     */\n    function toPlainObject(value) {\n      return copyObject(value, keysIn(value));\n    }\n\n    /**\n     * Converts `value` to a safe integer. A safe integer can be compared and\n     * represented correctly.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.toSafeInteger(3.2);\n     * // => 3\n     *\n     * _.toSafeInteger(Number.MIN_VALUE);\n     * // => 0\n     *\n     * _.toSafeInteger(Infinity);\n     * // => 9007199254740991\n     *\n     * _.toSafeInteger('3.2');\n     * // => 3\n     */\n    function toSafeInteger(value) {\n      return value\n        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n        : (value === 0 ? value : 0);\n    }\n\n    /**\n     * Converts `value` to a string. An empty string is returned for `null`\n     * and `undefined` values. The sign of `-0` is preserved.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Lang\n     * @param {*} value The value to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.toString(null);\n     * // => ''\n     *\n     * _.toString(-0);\n     * // => '-0'\n     *\n     * _.toString([1, 2, 3]);\n     * // => '1,2,3'\n     */\n    function toString(value) {\n      return value == null ? '' : baseToString(value);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Assigns own enumerable string keyed properties of source objects to the\n     * destination object. Source objects are applied from left to right.\n     * Subsequent sources overwrite property assignments of previous sources.\n     *\n     * **Note:** This method mutates `object` and is loosely based on\n     * [`Object.assign`](https://mdn.io/Object/assign).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.10.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.assignIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * function Bar() {\n     *   this.c = 3;\n     * }\n     *\n     * Foo.prototype.b = 2;\n     * Bar.prototype.d = 4;\n     *\n     * _.assign({ 'a': 0 }, new Foo, new Bar);\n     * // => { 'a': 1, 'c': 3 }\n     */\n    var assign = createAssigner(function(object, source) {\n      if (isPrototype(source) || isArrayLike(source)) {\n        copyObject(source, keys(source), object);\n        return;\n      }\n      for (var key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          assignValue(object, key, source[key]);\n        }\n      }\n    });\n\n    /**\n     * This method is like `_.assign` except that it iterates over own and\n     * inherited source properties.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias extend\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.assign\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     * }\n     *\n     * function Bar() {\n     *   this.c = 3;\n     * }\n     *\n     * Foo.prototype.b = 2;\n     * Bar.prototype.d = 4;\n     *\n     * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n     */\n    var assignIn = createAssigner(function(object, source) {\n      copyObject(source, keysIn(source), object);\n    });\n\n    /**\n     * This method is like `_.assignIn` except that it accepts `customizer`\n     * which is invoked to produce the assigned values. If `customizer` returns\n     * `undefined`, assignment is handled by the method instead. The `customizer`\n     * is invoked with five arguments: (objValue, srcValue, key, object, source).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias extendWith\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @see _.assignWith\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   return _.isUndefined(objValue) ? srcValue : objValue;\n     * }\n     *\n     * var defaults = _.partialRight(_.assignInWith, customizer);\n     *\n     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n      copyObject(source, keysIn(source), object, customizer);\n    });\n\n    /**\n     * This method is like `_.assign` except that it accepts `customizer`\n     * which is invoked to produce the assigned values. If `customizer` returns\n     * `undefined`, assignment is handled by the method instead. The `customizer`\n     * is invoked with five arguments: (objValue, srcValue, key, object, source).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @see _.assignInWith\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   return _.isUndefined(objValue) ? srcValue : objValue;\n     * }\n     *\n     * var defaults = _.partialRight(_.assignWith, customizer);\n     *\n     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n      copyObject(source, keys(source), object, customizer);\n    });\n\n    /**\n     * Creates an array of values corresponding to `paths` of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Array} Returns the picked values.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n     *\n     * _.at(object, ['a[0].b.c', 'a[1]']);\n     * // => [3, 4]\n     */\n    var at = flatRest(baseAt);\n\n    /**\n     * Creates an object that inherits from the `prototype` object. If a\n     * `properties` object is given, its own enumerable string keyed properties\n     * are assigned to the created object.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.3.0\n     * @category Object\n     * @param {Object} prototype The object to inherit from.\n     * @param {Object} [properties] The properties to assign to the object.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * function Shape() {\n     *   this.x = 0;\n     *   this.y = 0;\n     * }\n     *\n     * function Circle() {\n     *   Shape.call(this);\n     * }\n     *\n     * Circle.prototype = _.create(Shape.prototype, {\n     *   'constructor': Circle\n     * });\n     *\n     * var circle = new Circle;\n     * circle instanceof Circle;\n     * // => true\n     *\n     * circle instanceof Shape;\n     * // => true\n     */\n    function create(prototype, properties) {\n      var result = baseCreate(prototype);\n      return properties == null ? result : baseAssign(result, properties);\n    }\n\n    /**\n     * Assigns own and inherited enumerable string keyed properties of source\n     * objects to the destination object for all destination properties that\n     * resolve to `undefined`. Source objects are applied from left to right.\n     * Once a property is set, additional values of the same property are ignored.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.defaultsDeep\n     * @example\n     *\n     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n     * // => { 'a': 1, 'b': 2 }\n     */\n    var defaults = baseRest(function(object, sources) {\n      object = Object(object);\n\n      var index = -1;\n      var length = sources.length;\n      var guard = length > 2 ? sources[2] : undefined;\n\n      if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n        length = 1;\n      }\n\n      while (++index < length) {\n        var source = sources[index];\n        var props = keysIn(source);\n        var propsIndex = -1;\n        var propsLength = props.length;\n\n        while (++propsIndex < propsLength) {\n          var key = props[propsIndex];\n          var value = object[key];\n\n          if (value === undefined ||\n              (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n            object[key] = source[key];\n          }\n        }\n      }\n\n      return object;\n    });\n\n    /**\n     * This method is like `_.defaults` except that it recursively assigns\n     * default properties.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @see _.defaults\n     * @example\n     *\n     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n     * // => { 'a': { 'b': 2, 'c': 3 } }\n     */\n    var defaultsDeep = baseRest(function(args) {\n      args.push(undefined, customDefaultsMerge);\n      return apply(mergeWith, undefined, args);\n    });\n\n    /**\n     * This method is like `_.find` except that it returns the key of the first\n     * element `predicate` returns truthy for instead of the element itself.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {string|undefined} Returns the key of the matched element,\n     *  else `undefined`.\n     * @example\n     *\n     * var users = {\n     *   'barney':  { 'age': 36, 'active': true },\n     *   'fred':    { 'age': 40, 'active': false },\n     *   'pebbles': { 'age': 1,  'active': true }\n     * };\n     *\n     * _.findKey(users, function(o) { return o.age < 40; });\n     * // => 'barney' (iteration order is not guaranteed)\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findKey(users, { 'age': 1, 'active': true });\n     * // => 'pebbles'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findKey(users, ['active', false]);\n     * // => 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findKey(users, 'active');\n     * // => 'barney'\n     */\n    function findKey(object, predicate) {\n      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n    }\n\n    /**\n     * This method is like `_.findKey` except that it iterates over elements of\n     * a collection in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @param {Function} [predicate=_.identity] The function invoked per iteration.\n     * @returns {string|undefined} Returns the key of the matched element,\n     *  else `undefined`.\n     * @example\n     *\n     * var users = {\n     *   'barney':  { 'age': 36, 'active': true },\n     *   'fred':    { 'age': 40, 'active': false },\n     *   'pebbles': { 'age': 1,  'active': true }\n     * };\n     *\n     * _.findLastKey(users, function(o) { return o.age < 40; });\n     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.findLastKey(users, { 'age': 36, 'active': true });\n     * // => 'barney'\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.findLastKey(users, ['active', false]);\n     * // => 'fred'\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.findLastKey(users, 'active');\n     * // => 'pebbles'\n     */\n    function findLastKey(object, predicate) {\n      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n    }\n\n    /**\n     * Iterates over own and inherited enumerable string keyed properties of an\n     * object and invokes `iteratee` for each property. The iteratee is invoked\n     * with three arguments: (value, key, object). Iteratee functions may exit\n     * iteration early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forInRight\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forIn(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n     */\n    function forIn(object, iteratee) {\n      return object == null\n        ? object\n        : baseFor(object, getIteratee(iteratee, 3), keysIn);\n    }\n\n    /**\n     * This method is like `_.forIn` except that it iterates over properties of\n     * `object` in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forInRight(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n     */\n    function forInRight(object, iteratee) {\n      return object == null\n        ? object\n        : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n    }\n\n    /**\n     * Iterates over own enumerable string keyed properties of an object and\n     * invokes `iteratee` for each property. The iteratee is invoked with three\n     * arguments: (value, key, object). Iteratee functions may exit iteration\n     * early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forOwnRight\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forOwn(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n     */\n    function forOwn(object, iteratee) {\n      return object && baseForOwn(object, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * This method is like `_.forOwn` except that it iterates over properties of\n     * `object` in the opposite order.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.0.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns `object`.\n     * @see _.forOwn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.forOwnRight(new Foo, function(value, key) {\n     *   console.log(key);\n     * });\n     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n     */\n    function forOwnRight(object, iteratee) {\n      return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n    }\n\n    /**\n     * Creates an array of function property names from own enumerable properties\n     * of `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @returns {Array} Returns the function names.\n     * @see _.functionsIn\n     * @example\n     *\n     * function Foo() {\n     *   this.a = _.constant('a');\n     *   this.b = _.constant('b');\n     * }\n     *\n     * Foo.prototype.c = _.constant('c');\n     *\n     * _.functions(new Foo);\n     * // => ['a', 'b']\n     */\n    function functions(object) {\n      return object == null ? [] : baseFunctions(object, keys(object));\n    }\n\n    /**\n     * Creates an array of function property names from own and inherited\n     * enumerable properties of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to inspect.\n     * @returns {Array} Returns the function names.\n     * @see _.functions\n     * @example\n     *\n     * function Foo() {\n     *   this.a = _.constant('a');\n     *   this.b = _.constant('b');\n     * }\n     *\n     * Foo.prototype.c = _.constant('c');\n     *\n     * _.functionsIn(new Foo);\n     * // => ['a', 'b', 'c']\n     */\n    function functionsIn(object) {\n      return object == null ? [] : baseFunctions(object, keysIn(object));\n    }\n\n    /**\n     * Gets the value at `path` of `object`. If the resolved value is\n     * `undefined`, the `defaultValue` is returned in its place.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to get.\n     * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.get(object, 'a[0].b.c');\n     * // => 3\n     *\n     * _.get(object, ['a', '0', 'b', 'c']);\n     * // => 3\n     *\n     * _.get(object, 'a.b.c', 'default');\n     * // => 'default'\n     */\n    function get(object, path, defaultValue) {\n      var result = object == null ? undefined : baseGet(object, path);\n      return result === undefined ? defaultValue : result;\n    }\n\n    /**\n     * Checks if `path` is a direct property of `object`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     * @example\n     *\n     * var object = { 'a': { 'b': 2 } };\n     * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n     *\n     * _.has(object, 'a');\n     * // => true\n     *\n     * _.has(object, 'a.b');\n     * // => true\n     *\n     * _.has(object, ['a', 'b']);\n     * // => true\n     *\n     * _.has(other, 'a');\n     * // => false\n     */\n    function has(object, path) {\n      return object != null && hasPath(object, path, baseHas);\n    }\n\n    /**\n     * Checks if `path` is a direct or inherited property of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path to check.\n     * @returns {boolean} Returns `true` if `path` exists, else `false`.\n     * @example\n     *\n     * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n     *\n     * _.hasIn(object, 'a');\n     * // => true\n     *\n     * _.hasIn(object, 'a.b');\n     * // => true\n     *\n     * _.hasIn(object, ['a', 'b']);\n     * // => true\n     *\n     * _.hasIn(object, 'b');\n     * // => false\n     */\n    function hasIn(object, path) {\n      return object != null && hasPath(object, path, baseHasIn);\n    }\n\n    /**\n     * Creates an object composed of the inverted keys and values of `object`.\n     * If `object` contains duplicate values, subsequent values overwrite\n     * property assignments of previous values.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.7.0\n     * @category Object\n     * @param {Object} object The object to invert.\n     * @returns {Object} Returns the new inverted object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2, 'c': 1 };\n     *\n     * _.invert(object);\n     * // => { '1': 'c', '2': 'b' }\n     */\n    var invert = createInverter(function(result, value, key) {\n      if (value != null &&\n          typeof value.toString != 'function') {\n        value = nativeObjectToString.call(value);\n      }\n\n      result[value] = key;\n    }, constant(identity));\n\n    /**\n     * This method is like `_.invert` except that the inverted object is generated\n     * from the results of running each element of `object` thru `iteratee`. The\n     * corresponding inverted value of each inverted key is an array of keys\n     * responsible for generating the inverted value. The iteratee is invoked\n     * with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.1.0\n     * @category Object\n     * @param {Object} object The object to invert.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {Object} Returns the new inverted object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': 2, 'c': 1 };\n     *\n     * _.invertBy(object);\n     * // => { '1': ['a', 'c'], '2': ['b'] }\n     *\n     * _.invertBy(object, function(value) {\n     *   return 'group' + value;\n     * });\n     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n     */\n    var invertBy = createInverter(function(result, value, key) {\n      if (value != null &&\n          typeof value.toString != 'function') {\n        value = nativeObjectToString.call(value);\n      }\n\n      if (hasOwnProperty.call(result, value)) {\n        result[value].push(key);\n      } else {\n        result[value] = [key];\n      }\n    }, getIteratee);\n\n    /**\n     * Invokes the method at `path` of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {*} Returns the result of the invoked method.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n     *\n     * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n     * // => [2, 3]\n     */\n    var invoke = baseRest(baseInvoke);\n\n    /**\n     * Creates an array of the own enumerable property names of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects. See the\n     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n     * for more details.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.keys(new Foo);\n     * // => ['a', 'b'] (iteration order is not guaranteed)\n     *\n     * _.keys('hi');\n     * // => ['0', '1']\n     */\n    function keys(object) {\n      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n    }\n\n    /**\n     * Creates an array of the own and inherited enumerable property names of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property names.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.keysIn(new Foo);\n     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n     */\n    function keysIn(object) {\n      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n    }\n\n    /**\n     * The opposite of `_.mapValues`; this method creates an object with the\n     * same values as `object` and keys generated by running each own enumerable\n     * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n     * with three arguments: (value, key, object).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.8.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns the new mapped object.\n     * @see _.mapValues\n     * @example\n     *\n     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n     *   return key + value;\n     * });\n     * // => { 'a1': 1, 'b2': 2 }\n     */\n    function mapKeys(object, iteratee) {\n      var result = {};\n      iteratee = getIteratee(iteratee, 3);\n\n      baseForOwn(object, function(value, key, object) {\n        baseAssignValue(result, iteratee(value, key, object), value);\n      });\n      return result;\n    }\n\n    /**\n     * Creates an object with the same keys as `object` and values generated\n     * by running each own enumerable string keyed property of `object` thru\n     * `iteratee`. The iteratee is invoked with three arguments:\n     * (value, key, object).\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Object} Returns the new mapped object.\n     * @see _.mapKeys\n     * @example\n     *\n     * var users = {\n     *   'fred':    { 'user': 'fred',    'age': 40 },\n     *   'pebbles': { 'user': 'pebbles', 'age': 1 }\n     * };\n     *\n     * _.mapValues(users, function(o) { return o.age; });\n     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.mapValues(users, 'age');\n     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n     */\n    function mapValues(object, iteratee) {\n      var result = {};\n      iteratee = getIteratee(iteratee, 3);\n\n      baseForOwn(object, function(value, key, object) {\n        baseAssignValue(result, key, iteratee(value, key, object));\n      });\n      return result;\n    }\n\n    /**\n     * This method is like `_.assign` except that it recursively merges own and\n     * inherited enumerable string keyed properties of source objects into the\n     * destination object. Source properties that resolve to `undefined` are\n     * skipped if a destination value exists. Array and plain object properties\n     * are merged recursively. Other objects and value types are overridden by\n     * assignment. Source objects are applied from left to right. Subsequent\n     * sources overwrite property assignments of previous sources.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.5.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} [sources] The source objects.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {\n     *   'a': [{ 'b': 2 }, { 'd': 4 }]\n     * };\n     *\n     * var other = {\n     *   'a': [{ 'c': 3 }, { 'e': 5 }]\n     * };\n     *\n     * _.merge(object, other);\n     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n     */\n    var merge = createAssigner(function(object, source, srcIndex) {\n      baseMerge(object, source, srcIndex);\n    });\n\n    /**\n     * This method is like `_.merge` except that it accepts `customizer` which\n     * is invoked to produce the merged values of the destination and source\n     * properties. If `customizer` returns `undefined`, merging is handled by the\n     * method instead. The `customizer` is invoked with six arguments:\n     * (objValue, srcValue, key, object, source, stack).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The destination object.\n     * @param {...Object} sources The source objects.\n     * @param {Function} customizer The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * function customizer(objValue, srcValue) {\n     *   if (_.isArray(objValue)) {\n     *     return objValue.concat(srcValue);\n     *   }\n     * }\n     *\n     * var object = { 'a': [1], 'b': [2] };\n     * var other = { 'a': [3], 'b': [4] };\n     *\n     * _.mergeWith(object, other, customizer);\n     * // => { 'a': [1, 3], 'b': [2, 4] }\n     */\n    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n      baseMerge(object, source, srcIndex, customizer);\n    });\n\n    /**\n     * The opposite of `_.pick`; this method creates an object composed of the\n     * own and inherited enumerable property paths of `object` that are not omitted.\n     *\n     * **Note:** This method is considerably slower than `_.pick`.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {...(string|string[])} [paths] The property paths to omit.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.omit(object, ['a', 'c']);\n     * // => { 'b': '2' }\n     */\n    var omit = flatRest(function(object, paths) {\n      var result = {};\n      if (object == null) {\n        return result;\n      }\n      var isDeep = false;\n      paths = arrayMap(paths, function(path) {\n        path = castPath(path, object);\n        isDeep || (isDeep = path.length > 1);\n        return path;\n      });\n      copyObject(object, getAllKeysIn(object), result);\n      if (isDeep) {\n        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n      }\n      var length = paths.length;\n      while (length--) {\n        baseUnset(result, paths[length]);\n      }\n      return result;\n    });\n\n    /**\n     * The opposite of `_.pickBy`; this method creates an object composed of\n     * the own and inherited enumerable string keyed properties of `object` that\n     * `predicate` doesn't return truthy for. The predicate is invoked with two\n     * arguments: (value, key).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {Function} [predicate=_.identity] The function invoked per property.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.omitBy(object, _.isNumber);\n     * // => { 'b': '2' }\n     */\n    function omitBy(object, predicate) {\n      return pickBy(object, negate(getIteratee(predicate)));\n    }\n\n    /**\n     * Creates an object composed of the picked `object` properties.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {...(string|string[])} [paths] The property paths to pick.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.pick(object, ['a', 'c']);\n     * // => { 'a': 1, 'c': 3 }\n     */\n    var pick = flatRest(function(object, paths) {\n      return object == null ? {} : basePick(object, paths);\n    });\n\n    /**\n     * Creates an object composed of the `object` properties `predicate` returns\n     * truthy for. The predicate is invoked with two arguments: (value, key).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The source object.\n     * @param {Function} [predicate=_.identity] The function invoked per property.\n     * @returns {Object} Returns the new object.\n     * @example\n     *\n     * var object = { 'a': 1, 'b': '2', 'c': 3 };\n     *\n     * _.pickBy(object, _.isNumber);\n     * // => { 'a': 1, 'c': 3 }\n     */\n    function pickBy(object, predicate) {\n      if (object == null) {\n        return {};\n      }\n      var props = arrayMap(getAllKeysIn(object), function(prop) {\n        return [prop];\n      });\n      predicate = getIteratee(predicate);\n      return basePickBy(object, props, function(value, path) {\n        return predicate(value, path[0]);\n      });\n    }\n\n    /**\n     * This method is like `_.get` except that if the resolved value is a\n     * function it's invoked with the `this` binding of its parent object and\n     * its result is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @param {Array|string} path The path of the property to resolve.\n     * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n     *\n     * _.result(object, 'a[0].b.c1');\n     * // => 3\n     *\n     * _.result(object, 'a[0].b.c2');\n     * // => 4\n     *\n     * _.result(object, 'a[0].b.c3', 'default');\n     * // => 'default'\n     *\n     * _.result(object, 'a[0].b.c3', _.constant('default'));\n     * // => 'default'\n     */\n    function result(object, path, defaultValue) {\n      path = castPath(path, object);\n\n      var index = -1,\n          length = path.length;\n\n      // Ensure the loop is entered when path is empty.\n      if (!length) {\n        length = 1;\n        object = undefined;\n      }\n      while (++index < length) {\n        var value = object == null ? undefined : object[toKey(path[index])];\n        if (value === undefined) {\n          index = length;\n          value = defaultValue;\n        }\n        object = isFunction(value) ? value.call(object) : value;\n      }\n      return object;\n    }\n\n    /**\n     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n     * it's created. Arrays are created for missing index properties while objects\n     * are created for all other missing properties. Use `_.setWith` to customize\n     * `path` creation.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.set(object, 'a[0].b.c', 4);\n     * console.log(object.a[0].b.c);\n     * // => 4\n     *\n     * _.set(object, ['x', '0', 'y', 'z'], 5);\n     * console.log(object.x[0].y.z);\n     * // => 5\n     */\n    function set(object, path, value) {\n      return object == null ? object : baseSet(object, path, value);\n    }\n\n    /**\n     * This method is like `_.set` except that it accepts `customizer` which is\n     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`\n     * path creation is handled by the method instead. The `customizer` is invoked\n     * with three arguments: (nsValue, key, nsObject).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {*} value The value to set.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {};\n     *\n     * _.setWith(object, '[0][1]', 'a', Object);\n     * // => { '0': { '1': 'a' } }\n     */\n    function setWith(object, path, value, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return object == null ? object : baseSet(object, path, value, customizer);\n    }\n\n    /**\n     * Creates an array of own enumerable string keyed-value pairs for `object`\n     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n     * entries are returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias entries\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the key-value pairs.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.toPairs(new Foo);\n     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n     */\n    var toPairs = createToPairs(keys);\n\n    /**\n     * Creates an array of own and inherited enumerable string keyed-value pairs\n     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n     * or set, its entries are returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @alias entriesIn\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the key-value pairs.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.toPairsIn(new Foo);\n     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n     */\n    var toPairsIn = createToPairs(keysIn);\n\n    /**\n     * An alternative to `_.reduce`; this method transforms `object` to a new\n     * `accumulator` object which is the result of running each of its own\n     * enumerable string keyed properties thru `iteratee`, with each invocation\n     * potentially mutating the `accumulator` object. If `accumulator` is not\n     * provided, a new object with the same `[[Prototype]]` will be used. The\n     * iteratee is invoked with four arguments: (accumulator, value, key, object).\n     * Iteratee functions may exit iteration early by explicitly returning `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.3.0\n     * @category Object\n     * @param {Object} object The object to iterate over.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @param {*} [accumulator] The custom accumulator value.\n     * @returns {*} Returns the accumulated value.\n     * @example\n     *\n     * _.transform([2, 3, 4], function(result, n) {\n     *   result.push(n *= n);\n     *   return n % 2 == 0;\n     * }, []);\n     * // => [4, 9]\n     *\n     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n     *   (result[value] || (result[value] = [])).push(key);\n     * }, {});\n     * // => { '1': ['a', 'c'], '2': ['b'] }\n     */\n    function transform(object, iteratee, accumulator) {\n      var isArr = isArray(object),\n          isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n      iteratee = getIteratee(iteratee, 4);\n      if (accumulator == null) {\n        var Ctor = object && object.constructor;\n        if (isArrLike) {\n          accumulator = isArr ? new Ctor : [];\n        }\n        else if (isObject(object)) {\n          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n        }\n        else {\n          accumulator = {};\n        }\n      }\n      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n        return iteratee(accumulator, value, index, object);\n      });\n      return accumulator;\n    }\n\n    /**\n     * Removes the property at `path` of `object`.\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to unset.\n     * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n     * _.unset(object, 'a[0].b.c');\n     * // => true\n     *\n     * console.log(object);\n     * // => { 'a': [{ 'b': {} }] };\n     *\n     * _.unset(object, ['a', '0', 'b', 'c']);\n     * // => true\n     *\n     * console.log(object);\n     * // => { 'a': [{ 'b': {} }] };\n     */\n    function unset(object, path) {\n      return object == null ? true : baseUnset(object, path);\n    }\n\n    /**\n     * This method is like `_.set` except that accepts `updater` to produce the\n     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n     * is invoked with one argument: (value).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {Function} updater The function to produce the updated value.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n     *\n     * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n     * console.log(object.a[0].b.c);\n     * // => 9\n     *\n     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n     * console.log(object.x[0].y.z);\n     * // => 0\n     */\n    function update(object, path, updater) {\n      return object == null ? object : baseUpdate(object, path, castFunction(updater));\n    }\n\n    /**\n     * This method is like `_.update` except that it accepts `customizer` which is\n     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`\n     * path creation is handled by the method instead. The `customizer` is invoked\n     * with three arguments: (nsValue, key, nsObject).\n     *\n     * **Note:** This method mutates `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.6.0\n     * @category Object\n     * @param {Object} object The object to modify.\n     * @param {Array|string} path The path of the property to set.\n     * @param {Function} updater The function to produce the updated value.\n     * @param {Function} [customizer] The function to customize assigned values.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var object = {};\n     *\n     * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n     * // => { '0': { '1': 'a' } }\n     */\n    function updateWith(object, path, updater, customizer) {\n      customizer = typeof customizer == 'function' ? customizer : undefined;\n      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n    }\n\n    /**\n     * Creates an array of the own enumerable string keyed property values of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property values.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.values(new Foo);\n     * // => [1, 2] (iteration order is not guaranteed)\n     *\n     * _.values('hi');\n     * // => ['h', 'i']\n     */\n    function values(object) {\n      return object == null ? [] : baseValues(object, keys(object));\n    }\n\n    /**\n     * Creates an array of the own and inherited enumerable string keyed property\n     * values of `object`.\n     *\n     * **Note:** Non-object values are coerced to objects.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Object\n     * @param {Object} object The object to query.\n     * @returns {Array} Returns the array of property values.\n     * @example\n     *\n     * function Foo() {\n     *   this.a = 1;\n     *   this.b = 2;\n     * }\n     *\n     * Foo.prototype.c = 3;\n     *\n     * _.valuesIn(new Foo);\n     * // => [1, 2, 3] (iteration order is not guaranteed)\n     */\n    function valuesIn(object) {\n      return object == null ? [] : baseValues(object, keysIn(object));\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Clamps `number` within the inclusive `lower` and `upper` bounds.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Number\n     * @param {number} number The number to clamp.\n     * @param {number} [lower] The lower bound.\n     * @param {number} upper The upper bound.\n     * @returns {number} Returns the clamped number.\n     * @example\n     *\n     * _.clamp(-10, -5, 5);\n     * // => -5\n     *\n     * _.clamp(10, -5, 5);\n     * // => 5\n     */\n    function clamp(number, lower, upper) {\n      if (upper === undefined) {\n        upper = lower;\n        lower = undefined;\n      }\n      if (upper !== undefined) {\n        upper = toNumber(upper);\n        upper = upper === upper ? upper : 0;\n      }\n      if (lower !== undefined) {\n        lower = toNumber(lower);\n        lower = lower === lower ? lower : 0;\n      }\n      return baseClamp(toNumber(number), lower, upper);\n    }\n\n    /**\n     * Checks if `n` is between `start` and up to, but not including, `end`. If\n     * `end` is not specified, it's set to `start` with `start` then set to `0`.\n     * If `start` is greater than `end` the params are swapped to support\n     * negative ranges.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.3.0\n     * @category Number\n     * @param {number} number The number to check.\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n     * @see _.range, _.rangeRight\n     * @example\n     *\n     * _.inRange(3, 2, 4);\n     * // => true\n     *\n     * _.inRange(4, 8);\n     * // => true\n     *\n     * _.inRange(4, 2);\n     * // => false\n     *\n     * _.inRange(2, 2);\n     * // => false\n     *\n     * _.inRange(1.2, 2);\n     * // => true\n     *\n     * _.inRange(5.2, 4);\n     * // => false\n     *\n     * _.inRange(-3, -2, -6);\n     * // => true\n     */\n    function inRange(number, start, end) {\n      start = toFinite(start);\n      if (end === undefined) {\n        end = start;\n        start = 0;\n      } else {\n        end = toFinite(end);\n      }\n      number = toNumber(number);\n      return baseInRange(number, start, end);\n    }\n\n    /**\n     * Produces a random number between the inclusive `lower` and `upper` bounds.\n     * If only one argument is provided a number between `0` and the given number\n     * is returned. If `floating` is `true`, or either `lower` or `upper` are\n     * floats, a floating-point number is returned instead of an integer.\n     *\n     * **Note:** JavaScript follows the IEEE-754 standard for resolving\n     * floating-point values which can produce unexpected results.\n     *\n     * @static\n     * @memberOf _\n     * @since 0.7.0\n     * @category Number\n     * @param {number} [lower=0] The lower bound.\n     * @param {number} [upper=1] The upper bound.\n     * @param {boolean} [floating] Specify returning a floating-point number.\n     * @returns {number} Returns the random number.\n     * @example\n     *\n     * _.random(0, 5);\n     * // => an integer between 0 and 5\n     *\n     * _.random(5);\n     * // => also an integer between 0 and 5\n     *\n     * _.random(5, true);\n     * // => a floating-point number between 0 and 5\n     *\n     * _.random(1.2, 5.2);\n     * // => a floating-point number between 1.2 and 5.2\n     */\n    function random(lower, upper, floating) {\n      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n        upper = floating = undefined;\n      }\n      if (floating === undefined) {\n        if (typeof upper == 'boolean') {\n          floating = upper;\n          upper = undefined;\n        }\n        else if (typeof lower == 'boolean') {\n          floating = lower;\n          lower = undefined;\n        }\n      }\n      if (lower === undefined && upper === undefined) {\n        lower = 0;\n        upper = 1;\n      }\n      else {\n        lower = toFinite(lower);\n        if (upper === undefined) {\n          upper = lower;\n          lower = 0;\n        } else {\n          upper = toFinite(upper);\n        }\n      }\n      if (lower > upper) {\n        var temp = lower;\n        lower = upper;\n        upper = temp;\n      }\n      if (floating || lower % 1 || upper % 1) {\n        var rand = nativeRandom();\n        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n      }\n      return baseRandom(lower, upper);\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the camel cased string.\n     * @example\n     *\n     * _.camelCase('Foo Bar');\n     * // => 'fooBar'\n     *\n     * _.camelCase('--foo-bar--');\n     * // => 'fooBar'\n     *\n     * _.camelCase('__FOO_BAR__');\n     * // => 'fooBar'\n     */\n    var camelCase = createCompounder(function(result, word, index) {\n      word = word.toLowerCase();\n      return result + (index ? capitalize(word) : word);\n    });\n\n    /**\n     * Converts the first character of `string` to upper case and the remaining\n     * to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to capitalize.\n     * @returns {string} Returns the capitalized string.\n     * @example\n     *\n     * _.capitalize('FRED');\n     * // => 'Fred'\n     */\n    function capitalize(string) {\n      return upperFirst(toString(string).toLowerCase());\n    }\n\n    /**\n     * Deburrs `string` by converting\n     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n     * letters to basic Latin letters and removing\n     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to deburr.\n     * @returns {string} Returns the deburred string.\n     * @example\n     *\n     * _.deburr('déjà vu');\n     * // => 'deja vu'\n     */\n    function deburr(string) {\n      string = toString(string);\n      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n    }\n\n    /**\n     * Checks if `string` ends with the given target string.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {string} [target] The string to search for.\n     * @param {number} [position=string.length] The position to search up to.\n     * @returns {boolean} Returns `true` if `string` ends with `target`,\n     *  else `false`.\n     * @example\n     *\n     * _.endsWith('abc', 'c');\n     * // => true\n     *\n     * _.endsWith('abc', 'b');\n     * // => false\n     *\n     * _.endsWith('abc', 'b', 2);\n     * // => true\n     */\n    function endsWith(string, target, position) {\n      string = toString(string);\n      target = baseToString(target);\n\n      var length = string.length;\n      position = position === undefined\n        ? length\n        : baseClamp(toInteger(position), 0, length);\n\n      var end = position;\n      position -= target.length;\n      return position >= 0 && string.slice(position, end) == target;\n    }\n\n    /**\n     * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n     * corresponding HTML entities.\n     *\n     * **Note:** No other characters are escaped. To escape additional\n     * characters use a third-party library like [_he_](https://mths.be/he).\n     *\n     * Though the \">\" character is escaped for symmetry, characters like\n     * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n     * unless they're part of a tag or unquoted attribute value. See\n     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n     * (under \"semi-related fun fact\") for more details.\n     *\n     * When working with HTML you should always\n     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n     * XSS vectors.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category String\n     * @param {string} [string=''] The string to escape.\n     * @returns {string} Returns the escaped string.\n     * @example\n     *\n     * _.escape('fred, barney, & pebbles');\n     * // => 'fred, barney, &amp; pebbles'\n     */\n    function escape(string) {\n      string = toString(string);\n      return (string && reHasUnescapedHtml.test(string))\n        ? string.replace(reUnescapedHtml, escapeHtmlChar)\n        : string;\n    }\n\n    /**\n     * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n     * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to escape.\n     * @returns {string} Returns the escaped string.\n     * @example\n     *\n     * _.escapeRegExp('[lodash](https://lodash.com/)');\n     * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n     */\n    function escapeRegExp(string) {\n      string = toString(string);\n      return (string && reHasRegExpChar.test(string))\n        ? string.replace(reRegExpChar, '\\\\$&')\n        : string;\n    }\n\n    /**\n     * Converts `string` to\n     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the kebab cased string.\n     * @example\n     *\n     * _.kebabCase('Foo Bar');\n     * // => 'foo-bar'\n     *\n     * _.kebabCase('fooBar');\n     * // => 'foo-bar'\n     *\n     * _.kebabCase('__FOO_BAR__');\n     * // => 'foo-bar'\n     */\n    var kebabCase = createCompounder(function(result, word, index) {\n      return result + (index ? '-' : '') + word.toLowerCase();\n    });\n\n    /**\n     * Converts `string`, as space separated words, to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the lower cased string.\n     * @example\n     *\n     * _.lowerCase('--Foo-Bar--');\n     * // => 'foo bar'\n     *\n     * _.lowerCase('fooBar');\n     * // => 'foo bar'\n     *\n     * _.lowerCase('__FOO_BAR__');\n     * // => 'foo bar'\n     */\n    var lowerCase = createCompounder(function(result, word, index) {\n      return result + (index ? ' ' : '') + word.toLowerCase();\n    });\n\n    /**\n     * Converts the first character of `string` to lower case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.lowerFirst('Fred');\n     * // => 'fred'\n     *\n     * _.lowerFirst('FRED');\n     * // => 'fRED'\n     */\n    var lowerFirst = createCaseFirst('toLowerCase');\n\n    /**\n     * Pads `string` on the left and right sides if it's shorter than `length`.\n     * Padding characters are truncated if they can't be evenly divided by `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.pad('abc', 8);\n     * // => '  abc   '\n     *\n     * _.pad('abc', 8, '_-');\n     * // => '_-abc_-_'\n     *\n     * _.pad('abc', 3);\n     * // => 'abc'\n     */\n    function pad(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n\n      var strLength = length ? stringSize(string) : 0;\n      if (!length || strLength >= length) {\n        return string;\n      }\n      var mid = (length - strLength) / 2;\n      return (\n        createPadding(nativeFloor(mid), chars) +\n        string +\n        createPadding(nativeCeil(mid), chars)\n      );\n    }\n\n    /**\n     * Pads `string` on the right side if it's shorter than `length`. Padding\n     * characters are truncated if they exceed `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.padEnd('abc', 6);\n     * // => 'abc   '\n     *\n     * _.padEnd('abc', 6, '_-');\n     * // => 'abc_-_'\n     *\n     * _.padEnd('abc', 3);\n     * // => 'abc'\n     */\n    function padEnd(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n\n      var strLength = length ? stringSize(string) : 0;\n      return (length && strLength < length)\n        ? (string + createPadding(length - strLength, chars))\n        : string;\n    }\n\n    /**\n     * Pads `string` on the left side if it's shorter than `length`. Padding\n     * characters are truncated if they exceed `length`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to pad.\n     * @param {number} [length=0] The padding length.\n     * @param {string} [chars=' '] The string used as padding.\n     * @returns {string} Returns the padded string.\n     * @example\n     *\n     * _.padStart('abc', 6);\n     * // => '   abc'\n     *\n     * _.padStart('abc', 6, '_-');\n     * // => '_-_abc'\n     *\n     * _.padStart('abc', 3);\n     * // => 'abc'\n     */\n    function padStart(string, length, chars) {\n      string = toString(string);\n      length = toInteger(length);\n\n      var strLength = length ? stringSize(string) : 0;\n      return (length && strLength < length)\n        ? (createPadding(length - strLength, chars) + string)\n        : string;\n    }\n\n    /**\n     * Converts `string` to an integer of the specified radix. If `radix` is\n     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n     * hexadecimal, in which case a `radix` of `16` is used.\n     *\n     * **Note:** This method aligns with the\n     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n     *\n     * @static\n     * @memberOf _\n     * @since 1.1.0\n     * @category String\n     * @param {string} string The string to convert.\n     * @param {number} [radix=10] The radix to interpret `value` by.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {number} Returns the converted integer.\n     * @example\n     *\n     * _.parseInt('08');\n     * // => 8\n     *\n     * _.map(['6', '08', '10'], _.parseInt);\n     * // => [6, 8, 10]\n     */\n    function parseInt(string, radix, guard) {\n      if (guard || radix == null) {\n        radix = 0;\n      } else if (radix) {\n        radix = +radix;\n      }\n      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n    }\n\n    /**\n     * Repeats the given string `n` times.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to repeat.\n     * @param {number} [n=1] The number of times to repeat the string.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the repeated string.\n     * @example\n     *\n     * _.repeat('*', 3);\n     * // => '***'\n     *\n     * _.repeat('abc', 2);\n     * // => 'abcabc'\n     *\n     * _.repeat('abc', 0);\n     * // => ''\n     */\n    function repeat(string, n, guard) {\n      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n        n = 1;\n      } else {\n        n = toInteger(n);\n      }\n      return baseRepeat(toString(string), n);\n    }\n\n    /**\n     * Replaces matches for `pattern` in `string` with `replacement`.\n     *\n     * **Note:** This method is based on\n     * [`String#replace`](https://mdn.io/String/replace).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to modify.\n     * @param {RegExp|string} pattern The pattern to replace.\n     * @param {Function|string} replacement The match replacement.\n     * @returns {string} Returns the modified string.\n     * @example\n     *\n     * _.replace('Hi Fred', 'Fred', 'Barney');\n     * // => 'Hi Barney'\n     */\n    function replace() {\n      var args = arguments,\n          string = toString(args[0]);\n\n      return args.length < 3 ? string : string.replace(args[1], args[2]);\n    }\n\n    /**\n     * Converts `string` to\n     * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the snake cased string.\n     * @example\n     *\n     * _.snakeCase('Foo Bar');\n     * // => 'foo_bar'\n     *\n     * _.snakeCase('fooBar');\n     * // => 'foo_bar'\n     *\n     * _.snakeCase('--FOO-BAR--');\n     * // => 'foo_bar'\n     */\n    var snakeCase = createCompounder(function(result, word, index) {\n      return result + (index ? '_' : '') + word.toLowerCase();\n    });\n\n    /**\n     * Splits `string` by `separator`.\n     *\n     * **Note:** This method is based on\n     * [`String#split`](https://mdn.io/String/split).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to split.\n     * @param {RegExp|string} separator The separator pattern to split by.\n     * @param {number} [limit] The length to truncate results to.\n     * @returns {Array} Returns the string segments.\n     * @example\n     *\n     * _.split('a-b-c', '-', 2);\n     * // => ['a', 'b']\n     */\n    function split(string, separator, limit) {\n      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n        separator = limit = undefined;\n      }\n      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n      if (!limit) {\n        return [];\n      }\n      string = toString(string);\n      if (string && (\n            typeof separator == 'string' ||\n            (separator != null && !isRegExp(separator))\n          )) {\n        separator = baseToString(separator);\n        if (!separator && hasUnicode(string)) {\n          return castSlice(stringToArray(string), 0, limit);\n        }\n      }\n      return string.split(separator, limit);\n    }\n\n    /**\n     * Converts `string` to\n     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n     *\n     * @static\n     * @memberOf _\n     * @since 3.1.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the start cased string.\n     * @example\n     *\n     * _.startCase('--foo-bar--');\n     * // => 'Foo Bar'\n     *\n     * _.startCase('fooBar');\n     * // => 'Foo Bar'\n     *\n     * _.startCase('__FOO_BAR__');\n     * // => 'FOO BAR'\n     */\n    var startCase = createCompounder(function(result, word, index) {\n      return result + (index ? ' ' : '') + upperFirst(word);\n    });\n\n    /**\n     * Checks if `string` starts with the given target string.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {string} [target] The string to search for.\n     * @param {number} [position=0] The position to search from.\n     * @returns {boolean} Returns `true` if `string` starts with `target`,\n     *  else `false`.\n     * @example\n     *\n     * _.startsWith('abc', 'a');\n     * // => true\n     *\n     * _.startsWith('abc', 'b');\n     * // => false\n     *\n     * _.startsWith('abc', 'b', 1);\n     * // => true\n     */\n    function startsWith(string, target, position) {\n      string = toString(string);\n      position = position == null\n        ? 0\n        : baseClamp(toInteger(position), 0, string.length);\n\n      target = baseToString(target);\n      return string.slice(position, position + target.length) == target;\n    }\n\n    /**\n     * Creates a compiled template function that can interpolate data properties\n     * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n     * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n     * properties may be accessed as free variables in the template. If a setting\n     * object is given, it takes precedence over `_.templateSettings` values.\n     *\n     * **Note:** In the development build `_.template` utilizes\n     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n     * for easier debugging.\n     *\n     * For more information on precompiling templates see\n     * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n     *\n     * For more information on Chrome extension sandboxes see\n     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category String\n     * @param {string} [string=''] The template string.\n     * @param {Object} [options={}] The options object.\n     * @param {RegExp} [options.escape=_.templateSettings.escape]\n     *  The HTML \"escape\" delimiter.\n     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n     *  The \"evaluate\" delimiter.\n     * @param {Object} [options.imports=_.templateSettings.imports]\n     *  An object to import into the template as free variables.\n     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n     *  The \"interpolate\" delimiter.\n     * @param {string} [options.sourceURL='lodash.templateSources[n]']\n     *  The sourceURL of the compiled template.\n     * @param {string} [options.variable='obj']\n     *  The data object variable name.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Function} Returns the compiled template function.\n     * @example\n     *\n     * // Use the \"interpolate\" delimiter to create a compiled template.\n     * var compiled = _.template('hello <%= user %>!');\n     * compiled({ 'user': 'fred' });\n     * // => 'hello fred!'\n     *\n     * // Use the HTML \"escape\" delimiter to escape data property values.\n     * var compiled = _.template('<b><%- value %></b>');\n     * compiled({ 'value': '<script>' });\n     * // => '<b>&lt;script&gt;</b>'\n     *\n     * // Use the \"evaluate\" delimiter to execute JavaScript and generate HTML.\n     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');\n     * compiled({ 'users': ['fred', 'barney'] });\n     * // => '<li>fred</li><li>barney</li>'\n     *\n     * // Use the internal `print` function in \"evaluate\" delimiters.\n     * var compiled = _.template('<% print(\"hello \" + user); %>!');\n     * compiled({ 'user': 'barney' });\n     * // => 'hello barney!'\n     *\n     * // Use the ES template literal delimiter as an \"interpolate\" delimiter.\n     * // Disable support by replacing the \"interpolate\" delimiter.\n     * var compiled = _.template('hello ${ user }!');\n     * compiled({ 'user': 'pebbles' });\n     * // => 'hello pebbles!'\n     *\n     * // Use backslashes to treat delimiters as plain text.\n     * var compiled = _.template('<%= \"\\\\<%- value %\\\\>\" %>');\n     * compiled({ 'value': 'ignored' });\n     * // => '<%- value %>'\n     *\n     * // Use the `imports` option to import `jQuery` as `jq`.\n     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';\n     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });\n     * compiled({ 'users': ['fred', 'barney'] });\n     * // => '<li>fred</li><li>barney</li>'\n     *\n     * // Use the `sourceURL` option to specify a custom sourceURL for the template.\n     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });\n     * compiled(data);\n     * // => Find the source of \"greeting.jst\" under the Sources tab or Resources panel of the web inspector.\n     *\n     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.\n     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });\n     * compiled.source;\n     * // => function(data) {\n     * //   var __t, __p = '';\n     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';\n     * //   return __p;\n     * // }\n     *\n     * // Use custom template delimiters.\n     * _.templateSettings.interpolate = /{{([\\s\\S]+?)}}/g;\n     * var compiled = _.template('hello {{ user }}!');\n     * compiled({ 'user': 'mustache' });\n     * // => 'hello mustache!'\n     *\n     * // Use the `source` property to inline compiled templates for meaningful\n     * // line numbers in error messages and stack traces.\n     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\\\n     *   var JST = {\\\n     *     \"main\": ' + _.template(mainText).source + '\\\n     *   };\\\n     * ');\n     */\n    function template(string, options, guard) {\n      // Based on John Resig's `tmpl` implementation\n      // (http://ejohn.org/blog/javascript-micro-templating/)\n      // and Laura Doktorova's doT.js (https://github.com/olado/doT).\n      var settings = lodash.templateSettings;\n\n      if (guard && isIterateeCall(string, options, guard)) {\n        options = undefined;\n      }\n      string = toString(string);\n      options = assignInWith({}, options, settings, customDefaultsAssignIn);\n\n      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),\n          importsKeys = keys(imports),\n          importsValues = baseValues(imports, importsKeys);\n\n      var isEscaping,\n          isEvaluating,\n          index = 0,\n          interpolate = options.interpolate || reNoMatch,\n          source = \"__p += '\";\n\n      // Compile the regexp to match each delimiter.\n      var reDelimiters = RegExp(\n        (options.escape || reNoMatch).source + '|' +\n        interpolate.source + '|' +\n        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +\n        (options.evaluate || reNoMatch).source + '|$'\n      , 'g');\n\n      // Use a sourceURL for easier debugging.\n      // The sourceURL gets injected into the source that's eval-ed, so be careful\n      // to normalize all kinds of whitespace, so e.g. newlines (and unicode versions of it) can't sneak in\n      // and escape the comment, thus injecting code that gets evaled.\n      var sourceURL = '//# sourceURL=' +\n        (hasOwnProperty.call(options, 'sourceURL')\n          ? (options.sourceURL + '').replace(/\\s/g, ' ')\n          : ('lodash.templateSources[' + (++templateCounter) + ']')\n        ) + '\\n';\n\n      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {\n        interpolateValue || (interpolateValue = esTemplateValue);\n\n        // Escape characters that can't be included in string literals.\n        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);\n\n        // Replace delimiters with snippets.\n        if (escapeValue) {\n          isEscaping = true;\n          source += \"' +\\n__e(\" + escapeValue + \") +\\n'\";\n        }\n        if (evaluateValue) {\n          isEvaluating = true;\n          source += \"';\\n\" + evaluateValue + \";\\n__p += '\";\n        }\n        if (interpolateValue) {\n          source += \"' +\\n((__t = (\" + interpolateValue + \")) == null ? '' : __t) +\\n'\";\n        }\n        index = offset + match.length;\n\n        // The JS engine embedded in Adobe products needs `match` returned in\n        // order to produce the correct `offset` value.\n        return match;\n      });\n\n      source += \"';\\n\";\n\n      // If `variable` is not specified wrap a with-statement around the generated\n      // code to add the data object to the top of the scope chain.\n      var variable = hasOwnProperty.call(options, 'variable') && options.variable;\n      if (!variable) {\n        source = 'with (obj) {\\n' + source + '\\n}\\n';\n      }\n      // Throw an error if a forbidden character was found in `variable`, to prevent\n      // potential command injection attacks.\n      else if (reForbiddenIdentifierChars.test(variable)) {\n        throw new Error(INVALID_TEMPL_VAR_ERROR_TEXT);\n      }\n\n      // Cleanup code by stripping empty strings.\n      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)\n        .replace(reEmptyStringMiddle, '$1')\n        .replace(reEmptyStringTrailing, '$1;');\n\n      // Frame code as the function body.\n      source = 'function(' + (variable || 'obj') + ') {\\n' +\n        (variable\n          ? ''\n          : 'obj || (obj = {});\\n'\n        ) +\n        \"var __t, __p = ''\" +\n        (isEscaping\n           ? ', __e = _.escape'\n           : ''\n        ) +\n        (isEvaluating\n          ? ', __j = Array.prototype.join;\\n' +\n            \"function print() { __p += __j.call(arguments, '') }\\n\"\n          : ';\\n'\n        ) +\n        source +\n        'return __p\\n}';\n\n      var result = attempt(function() {\n        return Function(importsKeys, sourceURL + 'return ' + source)\n          .apply(undefined, importsValues);\n      });\n\n      // Provide the compiled function's source by its `toString` method or\n      // the `source` property as a convenience for inlining compiled templates.\n      result.source = source;\n      if (isError(result)) {\n        throw result;\n      }\n      return result;\n    }\n\n    /**\n     * Converts `string`, as a whole, to lower case just like\n     * [String#toLowerCase](https://mdn.io/toLowerCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the lower cased string.\n     * @example\n     *\n     * _.toLower('--Foo-Bar--');\n     * // => '--foo-bar--'\n     *\n     * _.toLower('fooBar');\n     * // => 'foobar'\n     *\n     * _.toLower('__FOO_BAR__');\n     * // => '__foo_bar__'\n     */\n    function toLower(value) {\n      return toString(value).toLowerCase();\n    }\n\n    /**\n     * Converts `string`, as a whole, to upper case just like\n     * [String#toUpperCase](https://mdn.io/toUpperCase).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the upper cased string.\n     * @example\n     *\n     * _.toUpper('--foo-bar--');\n     * // => '--FOO-BAR--'\n     *\n     * _.toUpper('fooBar');\n     * // => 'FOOBAR'\n     *\n     * _.toUpper('__foo_bar__');\n     * // => '__FOO_BAR__'\n     */\n    function toUpper(value) {\n      return toString(value).toUpperCase();\n    }\n\n    /**\n     * Removes leading and trailing whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trim('  abc  ');\n     * // => 'abc'\n     *\n     * _.trim('-_-abc-_-', '_-');\n     * // => 'abc'\n     *\n     * _.map(['  foo  ', '  bar  '], _.trim);\n     * // => ['foo', 'bar']\n     */\n    function trim(string, chars, guard) {\n      string = toString(string);\n      if (string && (guard || chars === undefined)) {\n        return baseTrim(string);\n      }\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n      var strSymbols = stringToArray(string),\n          chrSymbols = stringToArray(chars),\n          start = charsStartIndex(strSymbols, chrSymbols),\n          end = charsEndIndex(strSymbols, chrSymbols) + 1;\n\n      return castSlice(strSymbols, start, end).join('');\n    }\n\n    /**\n     * Removes trailing whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trimEnd('  abc  ');\n     * // => '  abc'\n     *\n     * _.trimEnd('-_-abc-_-', '_-');\n     * // => '-_-abc'\n     */\n    function trimEnd(string, chars, guard) {\n      string = toString(string);\n      if (string && (guard || chars === undefined)) {\n        return string.slice(0, trimmedEndIndex(string) + 1);\n      }\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n      var strSymbols = stringToArray(string),\n          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;\n\n      return castSlice(strSymbols, 0, end).join('');\n    }\n\n    /**\n     * Removes leading whitespace or specified characters from `string`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to trim.\n     * @param {string} [chars=whitespace] The characters to trim.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {string} Returns the trimmed string.\n     * @example\n     *\n     * _.trimStart('  abc  ');\n     * // => 'abc  '\n     *\n     * _.trimStart('-_-abc-_-', '_-');\n     * // => 'abc-_-'\n     */\n    function trimStart(string, chars, guard) {\n      string = toString(string);\n      if (string && (guard || chars === undefined)) {\n        return string.replace(reTrimStart, '');\n      }\n      if (!string || !(chars = baseToString(chars))) {\n        return string;\n      }\n      var strSymbols = stringToArray(string),\n          start = charsStartIndex(strSymbols, stringToArray(chars));\n\n      return castSlice(strSymbols, start).join('');\n    }\n\n    /**\n     * Truncates `string` if it's longer than the given maximum string length.\n     * The last characters of the truncated string are replaced with the omission\n     * string which defaults to \"...\".\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to truncate.\n     * @param {Object} [options={}] The options object.\n     * @param {number} [options.length=30] The maximum string length.\n     * @param {string} [options.omission='...'] The string to indicate text is omitted.\n     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.\n     * @returns {string} Returns the truncated string.\n     * @example\n     *\n     * _.truncate('hi-diddly-ho there, neighborino');\n     * // => 'hi-diddly-ho there, neighbo...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'length': 24,\n     *   'separator': ' '\n     * });\n     * // => 'hi-diddly-ho there,...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'length': 24,\n     *   'separator': /,? +/\n     * });\n     * // => 'hi-diddly-ho there...'\n     *\n     * _.truncate('hi-diddly-ho there, neighborino', {\n     *   'omission': ' [...]'\n     * });\n     * // => 'hi-diddly-ho there, neig [...]'\n     */\n    function truncate(string, options) {\n      var length = DEFAULT_TRUNC_LENGTH,\n          omission = DEFAULT_TRUNC_OMISSION;\n\n      if (isObject(options)) {\n        var separator = 'separator' in options ? options.separator : separator;\n        length = 'length' in options ? toInteger(options.length) : length;\n        omission = 'omission' in options ? baseToString(options.omission) : omission;\n      }\n      string = toString(string);\n\n      var strLength = string.length;\n      if (hasUnicode(string)) {\n        var strSymbols = stringToArray(string);\n        strLength = strSymbols.length;\n      }\n      if (length >= strLength) {\n        return string;\n      }\n      var end = length - stringSize(omission);\n      if (end < 1) {\n        return omission;\n      }\n      var result = strSymbols\n        ? castSlice(strSymbols, 0, end).join('')\n        : string.slice(0, end);\n\n      if (separator === undefined) {\n        return result + omission;\n      }\n      if (strSymbols) {\n        end += (result.length - end);\n      }\n      if (isRegExp(separator)) {\n        if (string.slice(end).search(separator)) {\n          var match,\n              substring = result;\n\n          if (!separator.global) {\n            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');\n          }\n          separator.lastIndex = 0;\n          while ((match = separator.exec(substring))) {\n            var newEnd = match.index;\n          }\n          result = result.slice(0, newEnd === undefined ? end : newEnd);\n        }\n      } else if (string.indexOf(baseToString(separator), end) != end) {\n        var index = result.lastIndexOf(separator);\n        if (index > -1) {\n          result = result.slice(0, index);\n        }\n      }\n      return result + omission;\n    }\n\n    /**\n     * The inverse of `_.escape`; this method converts the HTML entities\n     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to\n     * their corresponding characters.\n     *\n     * **Note:** No other HTML entities are unescaped. To unescape additional\n     * HTML entities use a third-party library like [_he_](https://mths.be/he).\n     *\n     * @static\n     * @memberOf _\n     * @since 0.6.0\n     * @category String\n     * @param {string} [string=''] The string to unescape.\n     * @returns {string} Returns the unescaped string.\n     * @example\n     *\n     * _.unescape('fred, barney, &amp; pebbles');\n     * // => 'fred, barney, & pebbles'\n     */\n    function unescape(string) {\n      string = toString(string);\n      return (string && reHasEscapedHtml.test(string))\n        ? string.replace(reEscapedHtml, unescapeHtmlChar)\n        : string;\n    }\n\n    /**\n     * Converts `string`, as space separated words, to upper case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the upper cased string.\n     * @example\n     *\n     * _.upperCase('--foo-bar');\n     * // => 'FOO BAR'\n     *\n     * _.upperCase('fooBar');\n     * // => 'FOO BAR'\n     *\n     * _.upperCase('__foo_bar__');\n     * // => 'FOO BAR'\n     */\n    var upperCase = createCompounder(function(result, word, index) {\n      return result + (index ? ' ' : '') + word.toUpperCase();\n    });\n\n    /**\n     * Converts the first character of `string` to upper case.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category String\n     * @param {string} [string=''] The string to convert.\n     * @returns {string} Returns the converted string.\n     * @example\n     *\n     * _.upperFirst('fred');\n     * // => 'Fred'\n     *\n     * _.upperFirst('FRED');\n     * // => 'FRED'\n     */\n    var upperFirst = createCaseFirst('toUpperCase');\n\n    /**\n     * Splits `string` into an array of its words.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category String\n     * @param {string} [string=''] The string to inspect.\n     * @param {RegExp|string} [pattern] The pattern to match words.\n     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n     * @returns {Array} Returns the words of `string`.\n     * @example\n     *\n     * _.words('fred, barney, & pebbles');\n     * // => ['fred', 'barney', 'pebbles']\n     *\n     * _.words('fred, barney, & pebbles', /[^, ]+/g);\n     * // => ['fred', 'barney', '&', 'pebbles']\n     */\n    function words(string, pattern, guard) {\n      string = toString(string);\n      pattern = guard ? undefined : pattern;\n\n      if (pattern === undefined) {\n        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);\n      }\n      return string.match(pattern) || [];\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Attempts to invoke `func`, returning either the result or the caught error\n     * object. Any additional arguments are provided to `func` when it's invoked.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Function} func The function to attempt.\n     * @param {...*} [args] The arguments to invoke `func` with.\n     * @returns {*} Returns the `func` result or error object.\n     * @example\n     *\n     * // Avoid throwing errors for invalid selectors.\n     * var elements = _.attempt(function(selector) {\n     *   return document.querySelectorAll(selector);\n     * }, '>_>');\n     *\n     * if (_.isError(elements)) {\n     *   elements = [];\n     * }\n     */\n    var attempt = baseRest(function(func, args) {\n      try {\n        return apply(func, undefined, args);\n      } catch (e) {\n        return isError(e) ? e : new Error(e);\n      }\n    });\n\n    /**\n     * Binds methods of an object to the object itself, overwriting the existing\n     * method.\n     *\n     * **Note:** This method doesn't set the \"length\" property of bound functions.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {Object} object The object to bind and assign the bound methods to.\n     * @param {...(string|string[])} methodNames The object method names to bind.\n     * @returns {Object} Returns `object`.\n     * @example\n     *\n     * var view = {\n     *   'label': 'docs',\n     *   'click': function() {\n     *     console.log('clicked ' + this.label);\n     *   }\n     * };\n     *\n     * _.bindAll(view, ['click']);\n     * jQuery(element).on('click', view.click);\n     * // => Logs 'clicked docs' when clicked.\n     */\n    var bindAll = flatRest(function(object, methodNames) {\n      arrayEach(methodNames, function(key) {\n        key = toKey(key);\n        baseAssignValue(object, key, bind(object[key], object));\n      });\n      return object;\n    });\n\n    /**\n     * Creates a function that iterates over `pairs` and invokes the corresponding\n     * function of the first predicate to return truthy. The predicate-function\n     * pairs are invoked with the `this` binding and arguments of the created\n     * function.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {Array} pairs The predicate-function pairs.\n     * @returns {Function} Returns the new composite function.\n     * @example\n     *\n     * var func = _.cond([\n     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],\n     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],\n     *   [_.stubTrue,                      _.constant('no match')]\n     * ]);\n     *\n     * func({ 'a': 1, 'b': 2 });\n     * // => 'matches A'\n     *\n     * func({ 'a': 0, 'b': 1 });\n     * // => 'matches B'\n     *\n     * func({ 'a': '1', 'b': '2' });\n     * // => 'no match'\n     */\n    function cond(pairs) {\n      var length = pairs == null ? 0 : pairs.length,\n          toIteratee = getIteratee();\n\n      pairs = !length ? [] : arrayMap(pairs, function(pair) {\n        if (typeof pair[1] != 'function') {\n          throw new TypeError(FUNC_ERROR_TEXT);\n        }\n        return [toIteratee(pair[0]), pair[1]];\n      });\n\n      return baseRest(function(args) {\n        var index = -1;\n        while (++index < length) {\n          var pair = pairs[index];\n          if (apply(pair[0], this, args)) {\n            return apply(pair[1], this, args);\n          }\n        }\n      });\n    }\n\n    /**\n     * Creates a function that invokes the predicate properties of `source` with\n     * the corresponding property values of a given object, returning `true` if\n     * all predicates return truthy, else `false`.\n     *\n     * **Note:** The created function is equivalent to `_.conformsTo` with\n     * `source` partially applied.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {Object} source The object of property predicates to conform to.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 2, 'b': 1 },\n     *   { 'a': 1, 'b': 2 }\n     * ];\n     *\n     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));\n     * // => [{ 'a': 1, 'b': 2 }]\n     */\n    function conforms(source) {\n      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that returns `value`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Util\n     * @param {*} value The value to return from the new function.\n     * @returns {Function} Returns the new constant function.\n     * @example\n     *\n     * var objects = _.times(2, _.constant({ 'a': 1 }));\n     *\n     * console.log(objects);\n     * // => [{ 'a': 1 }, { 'a': 1 }]\n     *\n     * console.log(objects[0] === objects[1]);\n     * // => true\n     */\n    function constant(value) {\n      return function() {\n        return value;\n      };\n    }\n\n    /**\n     * Checks `value` to determine whether a default value should be returned in\n     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,\n     * or `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.14.0\n     * @category Util\n     * @param {*} value The value to check.\n     * @param {*} defaultValue The default value.\n     * @returns {*} Returns the resolved value.\n     * @example\n     *\n     * _.defaultTo(1, 10);\n     * // => 1\n     *\n     * _.defaultTo(undefined, 10);\n     * // => 10\n     */\n    function defaultTo(value, defaultValue) {\n      return (value == null || value !== value) ? defaultValue : value;\n    }\n\n    /**\n     * Creates a function that returns the result of invoking the given functions\n     * with the `this` binding of the created function, where each successive\n     * invocation is supplied the return value of the previous.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [funcs] The functions to invoke.\n     * @returns {Function} Returns the new composite function.\n     * @see _.flowRight\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var addSquare = _.flow([_.add, square]);\n     * addSquare(1, 2);\n     * // => 9\n     */\n    var flow = createFlow();\n\n    /**\n     * This method is like `_.flow` except that it creates a function that\n     * invokes the given functions from right to left.\n     *\n     * @static\n     * @since 3.0.0\n     * @memberOf _\n     * @category Util\n     * @param {...(Function|Function[])} [funcs] The functions to invoke.\n     * @returns {Function} Returns the new composite function.\n     * @see _.flow\n     * @example\n     *\n     * function square(n) {\n     *   return n * n;\n     * }\n     *\n     * var addSquare = _.flowRight([square, _.add]);\n     * addSquare(1, 2);\n     * // => 9\n     */\n    var flowRight = createFlow(true);\n\n    /**\n     * This method returns the first argument it receives.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {*} value Any value.\n     * @returns {*} Returns `value`.\n     * @example\n     *\n     * var object = { 'a': 1 };\n     *\n     * console.log(_.identity(object) === object);\n     * // => true\n     */\n    function identity(value) {\n      return value;\n    }\n\n    /**\n     * Creates a function that invokes `func` with the arguments of the created\n     * function. If `func` is a property name, the created function returns the\n     * property value for a given element. If `func` is an array or object, the\n     * created function returns `true` for elements that contain the equivalent\n     * source properties, otherwise it returns `false`.\n     *\n     * @static\n     * @since 4.0.0\n     * @memberOf _\n     * @category Util\n     * @param {*} [func=_.identity] The value to convert to a callback.\n     * @returns {Function} Returns the callback.\n     * @example\n     *\n     * var users = [\n     *   { 'user': 'barney', 'age': 36, 'active': true },\n     *   { 'user': 'fred',   'age': 40, 'active': false }\n     * ];\n     *\n     * // The `_.matches` iteratee shorthand.\n     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));\n     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]\n     *\n     * // The `_.matchesProperty` iteratee shorthand.\n     * _.filter(users, _.iteratee(['user', 'fred']));\n     * // => [{ 'user': 'fred', 'age': 40 }]\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.map(users, _.iteratee('user'));\n     * // => ['barney', 'fred']\n     *\n     * // Create custom iteratee shorthands.\n     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {\n     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {\n     *     return func.test(string);\n     *   };\n     * });\n     *\n     * _.filter(['abc', 'def'], /ef/);\n     * // => ['def']\n     */\n    function iteratee(func) {\n      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that performs a partial deep comparison between a given\n     * object and `source`, returning `true` if the given object has equivalent\n     * property values, else `false`.\n     *\n     * **Note:** The created function is equivalent to `_.isMatch` with `source`\n     * partially applied.\n     *\n     * Partial comparisons will match empty array and empty object `source`\n     * values against any array or object value, respectively. See `_.isEqual`\n     * for a list of supported value comparisons.\n     *\n     * **Note:** Multiple values can be checked by combining several matchers\n     * using `_.overSome`\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Object} source The object of property values to match.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 1, 'b': 2, 'c': 3 },\n     *   { 'a': 4, 'b': 5, 'c': 6 }\n     * ];\n     *\n     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));\n     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]\n     *\n     * // Checking for several possible values\n     * _.filter(objects, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));\n     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]\n     */\n    function matches(source) {\n      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that performs a partial deep comparison between the\n     * value at `path` of a given object to `srcValue`, returning `true` if the\n     * object value is equivalent, else `false`.\n     *\n     * **Note:** Partial comparisons will match empty array and empty object\n     * `srcValue` values against any array or object value, respectively. See\n     * `_.isEqual` for a list of supported value comparisons.\n     *\n     * **Note:** Multiple values can be checked by combining several matchers\n     * using `_.overSome`\n     *\n     * @static\n     * @memberOf _\n     * @since 3.2.0\n     * @category Util\n     * @param {Array|string} path The path of the property to get.\n     * @param {*} srcValue The value to match.\n     * @returns {Function} Returns the new spec function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': 1, 'b': 2, 'c': 3 },\n     *   { 'a': 4, 'b': 5, 'c': 6 }\n     * ];\n     *\n     * _.find(objects, _.matchesProperty('a', 4));\n     * // => { 'a': 4, 'b': 5, 'c': 6 }\n     *\n     * // Checking for several possible values\n     * _.filter(objects, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)]));\n     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]\n     */\n    function matchesProperty(path, srcValue) {\n      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));\n    }\n\n    /**\n     * Creates a function that invokes the method at `path` of a given object.\n     * Any additional arguments are provided to the invoked method.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Util\n     * @param {Array|string} path The path of the method to invoke.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {Function} Returns the new invoker function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': { 'b': _.constant(2) } },\n     *   { 'a': { 'b': _.constant(1) } }\n     * ];\n     *\n     * _.map(objects, _.method('a.b'));\n     * // => [2, 1]\n     *\n     * _.map(objects, _.method(['a', 'b']));\n     * // => [2, 1]\n     */\n    var method = baseRest(function(path, args) {\n      return function(object) {\n        return baseInvoke(object, path, args);\n      };\n    });\n\n    /**\n     * The opposite of `_.method`; this method creates a function that invokes\n     * the method at a given path of `object`. Any additional arguments are\n     * provided to the invoked method.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.7.0\n     * @category Util\n     * @param {Object} object The object to query.\n     * @param {...*} [args] The arguments to invoke the method with.\n     * @returns {Function} Returns the new invoker function.\n     * @example\n     *\n     * var array = _.times(3, _.constant),\n     *     object = { 'a': array, 'b': array, 'c': array };\n     *\n     * _.map(['a[2]', 'c[0]'], _.methodOf(object));\n     * // => [2, 0]\n     *\n     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));\n     * // => [2, 0]\n     */\n    var methodOf = baseRest(function(object, args) {\n      return function(path) {\n        return baseInvoke(object, path, args);\n      };\n    });\n\n    /**\n     * Adds all own enumerable string keyed function properties of a source\n     * object to the destination object. If `object` is a function, then methods\n     * are added to its prototype as well.\n     *\n     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to\n     * avoid conflicts caused by modifying the original.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {Function|Object} [object=lodash] The destination object.\n     * @param {Object} source The object of functions to add.\n     * @param {Object} [options={}] The options object.\n     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.\n     * @returns {Function|Object} Returns `object`.\n     * @example\n     *\n     * function vowels(string) {\n     *   return _.filter(string, function(v) {\n     *     return /[aeiou]/i.test(v);\n     *   });\n     * }\n     *\n     * _.mixin({ 'vowels': vowels });\n     * _.vowels('fred');\n     * // => ['e']\n     *\n     * _('fred').vowels().value();\n     * // => ['e']\n     *\n     * _.mixin({ 'vowels': vowels }, { 'chain': false });\n     * _('fred').vowels();\n     * // => ['e']\n     */\n    function mixin(object, source, options) {\n      var props = keys(source),\n          methodNames = baseFunctions(source, props);\n\n      if (options == null &&\n          !(isObject(source) && (methodNames.length || !props.length))) {\n        options = source;\n        source = object;\n        object = this;\n        methodNames = baseFunctions(source, keys(source));\n      }\n      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,\n          isFunc = isFunction(object);\n\n      arrayEach(methodNames, function(methodName) {\n        var func = source[methodName];\n        object[methodName] = func;\n        if (isFunc) {\n          object.prototype[methodName] = function() {\n            var chainAll = this.__chain__;\n            if (chain || chainAll) {\n              var result = object(this.__wrapped__),\n                  actions = result.__actions__ = copyArray(this.__actions__);\n\n              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });\n              result.__chain__ = chainAll;\n              return result;\n            }\n            return func.apply(object, arrayPush([this.value()], arguments));\n          };\n        }\n      });\n\n      return object;\n    }\n\n    /**\n     * Reverts the `_` variable to its previous value and returns a reference to\n     * the `lodash` function.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @returns {Function} Returns the `lodash` function.\n     * @example\n     *\n     * var lodash = _.noConflict();\n     */\n    function noConflict() {\n      if (root._ === this) {\n        root._ = oldDash;\n      }\n      return this;\n    }\n\n    /**\n     * This method returns `undefined`.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.3.0\n     * @category Util\n     * @example\n     *\n     * _.times(2, _.noop);\n     * // => [undefined, undefined]\n     */\n    function noop() {\n      // No operation performed.\n    }\n\n    /**\n     * Creates a function that gets the argument at index `n`. If `n` is negative,\n     * the nth argument from the end is returned.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {number} [n=0] The index of the argument to return.\n     * @returns {Function} Returns the new pass-thru function.\n     * @example\n     *\n     * var func = _.nthArg(1);\n     * func('a', 'b', 'c', 'd');\n     * // => 'b'\n     *\n     * var func = _.nthArg(-2);\n     * func('a', 'b', 'c', 'd');\n     * // => 'c'\n     */\n    function nthArg(n) {\n      n = toInteger(n);\n      return baseRest(function(args) {\n        return baseNth(args, n);\n      });\n    }\n\n    /**\n     * Creates a function that invokes `iteratees` with the arguments it receives\n     * and returns their results.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [iteratees=[_.identity]]\n     *  The iteratees to invoke.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.over([Math.max, Math.min]);\n     *\n     * func(1, 2, 3, 4);\n     * // => [4, 1]\n     */\n    var over = createOver(arrayMap);\n\n    /**\n     * Creates a function that checks if **all** of the `predicates` return\n     * truthy when invoked with the arguments it receives.\n     *\n     * Following shorthands are possible for providing predicates.\n     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.\n     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [predicates=[_.identity]]\n     *  The predicates to check.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.overEvery([Boolean, isFinite]);\n     *\n     * func('1');\n     * // => true\n     *\n     * func(null);\n     * // => false\n     *\n     * func(NaN);\n     * // => false\n     */\n    var overEvery = createOver(arrayEvery);\n\n    /**\n     * Creates a function that checks if **any** of the `predicates` return\n     * truthy when invoked with the arguments it receives.\n     *\n     * Following shorthands are possible for providing predicates.\n     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.\n     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {...(Function|Function[])} [predicates=[_.identity]]\n     *  The predicates to check.\n     * @returns {Function} Returns the new function.\n     * @example\n     *\n     * var func = _.overSome([Boolean, isFinite]);\n     *\n     * func('1');\n     * // => true\n     *\n     * func(null);\n     * // => true\n     *\n     * func(NaN);\n     * // => false\n     *\n     * var matchesFunc = _.overSome([{ 'a': 1 }, { 'a': 2 }])\n     * var matchesPropertyFunc = _.overSome([['a', 1], ['a', 2]])\n     */\n    var overSome = createOver(arraySome);\n\n    /**\n     * Creates a function that returns the value at `path` of a given object.\n     *\n     * @static\n     * @memberOf _\n     * @since 2.4.0\n     * @category Util\n     * @param {Array|string} path The path of the property to get.\n     * @returns {Function} Returns the new accessor function.\n     * @example\n     *\n     * var objects = [\n     *   { 'a': { 'b': 2 } },\n     *   { 'a': { 'b': 1 } }\n     * ];\n     *\n     * _.map(objects, _.property('a.b'));\n     * // => [2, 1]\n     *\n     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');\n     * // => [1, 2]\n     */\n    function property(path) {\n      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);\n    }\n\n    /**\n     * The opposite of `_.property`; this method creates a function that returns\n     * the value at a given path of `object`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.0.0\n     * @category Util\n     * @param {Object} object The object to query.\n     * @returns {Function} Returns the new accessor function.\n     * @example\n     *\n     * var array = [0, 1, 2],\n     *     object = { 'a': array, 'b': array, 'c': array };\n     *\n     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));\n     * // => [2, 0]\n     *\n     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));\n     * // => [2, 0]\n     */\n    function propertyOf(object) {\n      return function(path) {\n        return object == null ? undefined : baseGet(object, path);\n      };\n    }\n\n    /**\n     * Creates an array of numbers (positive and/or negative) progressing from\n     * `start` up to, but not including, `end`. A step of `-1` is used if a negative\n     * `start` is specified without an `end` or `step`. If `end` is not specified,\n     * it's set to `start` with `start` then set to `0`.\n     *\n     * **Note:** JavaScript follows the IEEE-754 standard for resolving\n     * floating-point values which can produce unexpected results.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} [step=1] The value to increment or decrement by.\n     * @returns {Array} Returns the range of numbers.\n     * @see _.inRange, _.rangeRight\n     * @example\n     *\n     * _.range(4);\n     * // => [0, 1, 2, 3]\n     *\n     * _.range(-4);\n     * // => [0, -1, -2, -3]\n     *\n     * _.range(1, 5);\n     * // => [1, 2, 3, 4]\n     *\n     * _.range(0, 20, 5);\n     * // => [0, 5, 10, 15]\n     *\n     * _.range(0, -4, -1);\n     * // => [0, -1, -2, -3]\n     *\n     * _.range(1, 4, 0);\n     * // => [1, 1, 1]\n     *\n     * _.range(0);\n     * // => []\n     */\n    var range = createRange();\n\n    /**\n     * This method is like `_.range` except that it populates values in\n     * descending order.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {number} [start=0] The start of the range.\n     * @param {number} end The end of the range.\n     * @param {number} [step=1] The value to increment or decrement by.\n     * @returns {Array} Returns the range of numbers.\n     * @see _.inRange, _.range\n     * @example\n     *\n     * _.rangeRight(4);\n     * // => [3, 2, 1, 0]\n     *\n     * _.rangeRight(-4);\n     * // => [-3, -2, -1, 0]\n     *\n     * _.rangeRight(1, 5);\n     * // => [4, 3, 2, 1]\n     *\n     * _.rangeRight(0, 20, 5);\n     * // => [15, 10, 5, 0]\n     *\n     * _.rangeRight(0, -4, -1);\n     * // => [-3, -2, -1, 0]\n     *\n     * _.rangeRight(1, 4, 0);\n     * // => [1, 1, 1]\n     *\n     * _.rangeRight(0);\n     * // => []\n     */\n    var rangeRight = createRange(true);\n\n    /**\n     * This method returns a new empty array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {Array} Returns the new empty array.\n     * @example\n     *\n     * var arrays = _.times(2, _.stubArray);\n     *\n     * console.log(arrays);\n     * // => [[], []]\n     *\n     * console.log(arrays[0] === arrays[1]);\n     * // => false\n     */\n    function stubArray() {\n      return [];\n    }\n\n    /**\n     * This method returns `false`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {boolean} Returns `false`.\n     * @example\n     *\n     * _.times(2, _.stubFalse);\n     * // => [false, false]\n     */\n    function stubFalse() {\n      return false;\n    }\n\n    /**\n     * This method returns a new empty object.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {Object} Returns the new empty object.\n     * @example\n     *\n     * var objects = _.times(2, _.stubObject);\n     *\n     * console.log(objects);\n     * // => [{}, {}]\n     *\n     * console.log(objects[0] === objects[1]);\n     * // => false\n     */\n    function stubObject() {\n      return {};\n    }\n\n    /**\n     * This method returns an empty string.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {string} Returns the empty string.\n     * @example\n     *\n     * _.times(2, _.stubString);\n     * // => ['', '']\n     */\n    function stubString() {\n      return '';\n    }\n\n    /**\n     * This method returns `true`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.13.0\n     * @category Util\n     * @returns {boolean} Returns `true`.\n     * @example\n     *\n     * _.times(2, _.stubTrue);\n     * // => [true, true]\n     */\n    function stubTrue() {\n      return true;\n    }\n\n    /**\n     * Invokes the iteratee `n` times, returning an array of the results of\n     * each invocation. The iteratee is invoked with one argument; (index).\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {number} n The number of times to invoke `iteratee`.\n     * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n     * @returns {Array} Returns the array of results.\n     * @example\n     *\n     * _.times(3, String);\n     * // => ['0', '1', '2']\n     *\n     *  _.times(4, _.constant(0));\n     * // => [0, 0, 0, 0]\n     */\n    function times(n, iteratee) {\n      n = toInteger(n);\n      if (n < 1 || n > MAX_SAFE_INTEGER) {\n        return [];\n      }\n      var index = MAX_ARRAY_LENGTH,\n          length = nativeMin(n, MAX_ARRAY_LENGTH);\n\n      iteratee = getIteratee(iteratee);\n      n -= MAX_ARRAY_LENGTH;\n\n      var result = baseTimes(length, iteratee);\n      while (++index < n) {\n        iteratee(index);\n      }\n      return result;\n    }\n\n    /**\n     * Converts `value` to a property path array.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Util\n     * @param {*} value The value to convert.\n     * @returns {Array} Returns the new property path array.\n     * @example\n     *\n     * _.toPath('a.b.c');\n     * // => ['a', 'b', 'c']\n     *\n     * _.toPath('a[0].b.c');\n     * // => ['a', '0', 'b', 'c']\n     */\n    function toPath(value) {\n      if (isArray(value)) {\n        return arrayMap(value, toKey);\n      }\n      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));\n    }\n\n    /**\n     * Generates a unique ID. If `prefix` is given, the ID is appended to it.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Util\n     * @param {string} [prefix=''] The value to prefix the ID with.\n     * @returns {string} Returns the unique ID.\n     * @example\n     *\n     * _.uniqueId('contact_');\n     * // => 'contact_104'\n     *\n     * _.uniqueId();\n     * // => '105'\n     */\n    function uniqueId(prefix) {\n      var id = ++idCounter;\n      return toString(prefix) + id;\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * Adds two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.4.0\n     * @category Math\n     * @param {number} augend The first number in an addition.\n     * @param {number} addend The second number in an addition.\n     * @returns {number} Returns the total.\n     * @example\n     *\n     * _.add(6, 4);\n     * // => 10\n     */\n    var add = createMathOperation(function(augend, addend) {\n      return augend + addend;\n    }, 0);\n\n    /**\n     * Computes `number` rounded up to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round up.\n     * @param {number} [precision=0] The precision to round up to.\n     * @returns {number} Returns the rounded up number.\n     * @example\n     *\n     * _.ceil(4.006);\n     * // => 5\n     *\n     * _.ceil(6.004, 2);\n     * // => 6.01\n     *\n     * _.ceil(6040, -2);\n     * // => 6100\n     */\n    var ceil = createRound('ceil');\n\n    /**\n     * Divide two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {number} dividend The first number in a division.\n     * @param {number} divisor The second number in a division.\n     * @returns {number} Returns the quotient.\n     * @example\n     *\n     * _.divide(6, 4);\n     * // => 1.5\n     */\n    var divide = createMathOperation(function(dividend, divisor) {\n      return dividend / divisor;\n    }, 1);\n\n    /**\n     * Computes `number` rounded down to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round down.\n     * @param {number} [precision=0] The precision to round down to.\n     * @returns {number} Returns the rounded down number.\n     * @example\n     *\n     * _.floor(4.006);\n     * // => 4\n     *\n     * _.floor(0.046, 2);\n     * // => 0.04\n     *\n     * _.floor(4060, -2);\n     * // => 4000\n     */\n    var floor = createRound('floor');\n\n    /**\n     * Computes the maximum value of `array`. If `array` is empty or falsey,\n     * `undefined` is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {*} Returns the maximum value.\n     * @example\n     *\n     * _.max([4, 2, 8, 6]);\n     * // => 8\n     *\n     * _.max([]);\n     * // => undefined\n     */\n    function max(array) {\n      return (array && array.length)\n        ? baseExtremum(array, identity, baseGt)\n        : undefined;\n    }\n\n    /**\n     * This method is like `_.max` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * the value is ranked. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {*} Returns the maximum value.\n     * @example\n     *\n     * var objects = [{ 'n': 1 }, { 'n': 2 }];\n     *\n     * _.maxBy(objects, function(o) { return o.n; });\n     * // => { 'n': 2 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.maxBy(objects, 'n');\n     * // => { 'n': 2 }\n     */\n    function maxBy(array, iteratee) {\n      return (array && array.length)\n        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)\n        : undefined;\n    }\n\n    /**\n     * Computes the mean of the values in `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {number} Returns the mean.\n     * @example\n     *\n     * _.mean([4, 2, 8, 6]);\n     * // => 5\n     */\n    function mean(array) {\n      return baseMean(array, identity);\n    }\n\n    /**\n     * This method is like `_.mean` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the value to be averaged.\n     * The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the mean.\n     * @example\n     *\n     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];\n     *\n     * _.meanBy(objects, function(o) { return o.n; });\n     * // => 5\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.meanBy(objects, 'n');\n     * // => 5\n     */\n    function meanBy(array, iteratee) {\n      return baseMean(array, getIteratee(iteratee, 2));\n    }\n\n    /**\n     * Computes the minimum value of `array`. If `array` is empty or falsey,\n     * `undefined` is returned.\n     *\n     * @static\n     * @since 0.1.0\n     * @memberOf _\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {*} Returns the minimum value.\n     * @example\n     *\n     * _.min([4, 2, 8, 6]);\n     * // => 2\n     *\n     * _.min([]);\n     * // => undefined\n     */\n    function min(array) {\n      return (array && array.length)\n        ? baseExtremum(array, identity, baseLt)\n        : undefined;\n    }\n\n    /**\n     * This method is like `_.min` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the criterion by which\n     * the value is ranked. The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {*} Returns the minimum value.\n     * @example\n     *\n     * var objects = [{ 'n': 1 }, { 'n': 2 }];\n     *\n     * _.minBy(objects, function(o) { return o.n; });\n     * // => { 'n': 1 }\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.minBy(objects, 'n');\n     * // => { 'n': 1 }\n     */\n    function minBy(array, iteratee) {\n      return (array && array.length)\n        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)\n        : undefined;\n    }\n\n    /**\n     * Multiply two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.7.0\n     * @category Math\n     * @param {number} multiplier The first number in a multiplication.\n     * @param {number} multiplicand The second number in a multiplication.\n     * @returns {number} Returns the product.\n     * @example\n     *\n     * _.multiply(6, 4);\n     * // => 24\n     */\n    var multiply = createMathOperation(function(multiplier, multiplicand) {\n      return multiplier * multiplicand;\n    }, 1);\n\n    /**\n     * Computes `number` rounded to `precision`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.10.0\n     * @category Math\n     * @param {number} number The number to round.\n     * @param {number} [precision=0] The precision to round to.\n     * @returns {number} Returns the rounded number.\n     * @example\n     *\n     * _.round(4.006);\n     * // => 4\n     *\n     * _.round(4.006, 2);\n     * // => 4.01\n     *\n     * _.round(4060, -2);\n     * // => 4100\n     */\n    var round = createRound('round');\n\n    /**\n     * Subtract two numbers.\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {number} minuend The first number in a subtraction.\n     * @param {number} subtrahend The second number in a subtraction.\n     * @returns {number} Returns the difference.\n     * @example\n     *\n     * _.subtract(6, 4);\n     * // => 2\n     */\n    var subtract = createMathOperation(function(minuend, subtrahend) {\n      return minuend - subtrahend;\n    }, 0);\n\n    /**\n     * Computes the sum of the values in `array`.\n     *\n     * @static\n     * @memberOf _\n     * @since 3.4.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @returns {number} Returns the sum.\n     * @example\n     *\n     * _.sum([4, 2, 8, 6]);\n     * // => 20\n     */\n    function sum(array) {\n      return (array && array.length)\n        ? baseSum(array, identity)\n        : 0;\n    }\n\n    /**\n     * This method is like `_.sum` except that it accepts `iteratee` which is\n     * invoked for each element in `array` to generate the value to be summed.\n     * The iteratee is invoked with one argument: (value).\n     *\n     * @static\n     * @memberOf _\n     * @since 4.0.0\n     * @category Math\n     * @param {Array} array The array to iterate over.\n     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n     * @returns {number} Returns the sum.\n     * @example\n     *\n     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];\n     *\n     * _.sumBy(objects, function(o) { return o.n; });\n     * // => 20\n     *\n     * // The `_.property` iteratee shorthand.\n     * _.sumBy(objects, 'n');\n     * // => 20\n     */\n    function sumBy(array, iteratee) {\n      return (array && array.length)\n        ? baseSum(array, getIteratee(iteratee, 2))\n        : 0;\n    }\n\n    /*------------------------------------------------------------------------*/\n\n    // Add methods that return wrapped values in chain sequences.\n    lodash.after = after;\n    lodash.ary = ary;\n    lodash.assign = assign;\n    lodash.assignIn = assignIn;\n    lodash.assignInWith = assignInWith;\n    lodash.assignWith = assignWith;\n    lodash.at = at;\n    lodash.before = before;\n    lodash.bind = bind;\n    lodash.bindAll = bindAll;\n    lodash.bindKey = bindKey;\n    lodash.castArray = castArray;\n    lodash.chain = chain;\n    lodash.chunk = chunk;\n    lodash.compact = compact;\n    lodash.concat = concat;\n    lodash.cond = cond;\n    lodash.conforms = conforms;\n    lodash.constant = constant;\n    lodash.countBy = countBy;\n    lodash.create = create;\n    lodash.curry = curry;\n    lodash.curryRight = curryRight;\n    lodash.debounce = debounce;\n    lodash.defaults = defaults;\n    lodash.defaultsDeep = defaultsDeep;\n    lodash.defer = defer;\n    lodash.delay = delay;\n    lodash.difference = difference;\n    lodash.differenceBy = differenceBy;\n    lodash.differenceWith = differenceWith;\n    lodash.drop = drop;\n    lodash.dropRight = dropRight;\n    lodash.dropRightWhile = dropRightWhile;\n    lodash.dropWhile = dropWhile;\n    lodash.fill = fill;\n    lodash.filter = filter;\n    lodash.flatMap = flatMap;\n    lodash.flatMapDeep = flatMapDeep;\n    lodash.flatMapDepth = flatMapDepth;\n    lodash.flatten = flatten;\n    lodash.flattenDeep = flattenDeep;\n    lodash.flattenDepth = flattenDepth;\n    lodash.flip = flip;\n    lodash.flow = flow;\n    lodash.flowRight = flowRight;\n    lodash.fromPairs = fromPairs;\n    lodash.functions = functions;\n    lodash.functionsIn = functionsIn;\n    lodash.groupBy = groupBy;\n    lodash.initial = initial;\n    lodash.intersection = intersection;\n    lodash.intersectionBy = intersectionBy;\n    lodash.intersectionWith = intersectionWith;\n    lodash.invert = invert;\n    lodash.invertBy = invertBy;\n    lodash.invokeMap = invokeMap;\n    lodash.iteratee = iteratee;\n    lodash.keyBy = keyBy;\n    lodash.keys = keys;\n    lodash.keysIn = keysIn;\n    lodash.map = map;\n    lodash.mapKeys = mapKeys;\n    lodash.mapValues = mapValues;\n    lodash.matches = matches;\n    lodash.matchesProperty = matchesProperty;\n    lodash.memoize = memoize;\n    lodash.merge = merge;\n    lodash.mergeWith = mergeWith;\n    lodash.method = method;\n    lodash.methodOf = methodOf;\n    lodash.mixin = mixin;\n    lodash.negate = negate;\n    lodash.nthArg = nthArg;\n    lodash.omit = omit;\n    lodash.omitBy = omitBy;\n    lodash.once = once;\n    lodash.orderBy = orderBy;\n    lodash.over = over;\n    lodash.overArgs = overArgs;\n    lodash.overEvery = overEvery;\n    lodash.overSome = overSome;\n    lodash.partial = partial;\n    lodash.partialRight = partialRight;\n    lodash.partition = partition;\n    lodash.pick = pick;\n    lodash.pickBy = pickBy;\n    lodash.property = property;\n    lodash.propertyOf = propertyOf;\n    lodash.pull = pull;\n    lodash.pullAll = pullAll;\n    lodash.pullAllBy = pullAllBy;\n    lodash.pullAllWith = pullAllWith;\n    lodash.pullAt = pullAt;\n    lodash.range = range;\n    lodash.rangeRight = rangeRight;\n    lodash.rearg = rearg;\n    lodash.reject = reject;\n    lodash.remove = remove;\n    lodash.rest = rest;\n    lodash.reverse = reverse;\n    lodash.sampleSize = sampleSize;\n    lodash.set = set;\n    lodash.setWith = setWith;\n    lodash.shuffle = shuffle;\n    lodash.slice = slice;\n    lodash.sortBy = sortBy;\n    lodash.sortedUniq = sortedUniq;\n    lodash.sortedUniqBy = sortedUniqBy;\n    lodash.split = split;\n    lodash.spread = spread;\n    lodash.tail = tail;\n    lodash.take = take;\n    lodash.takeRight = takeRight;\n    lodash.takeRightWhile = takeRightWhile;\n    lodash.takeWhile = takeWhile;\n    lodash.tap = tap;\n    lodash.throttle = throttle;\n    lodash.thru = thru;\n    lodash.toArray = toArray;\n    lodash.toPairs = toPairs;\n    lodash.toPairsIn = toPairsIn;\n    lodash.toPath = toPath;\n    lodash.toPlainObject = toPlainObject;\n    lodash.transform = transform;\n    lodash.unary = unary;\n    lodash.union = union;\n    lodash.unionBy = unionBy;\n    lodash.unionWith = unionWith;\n    lodash.uniq = uniq;\n    lodash.uniqBy = uniqBy;\n    lodash.uniqWith = uniqWith;\n    lodash.unset = unset;\n    lodash.unzip = unzip;\n    lodash.unzipWith = unzipWith;\n    lodash.update = update;\n    lodash.updateWith = updateWith;\n    lodash.values = values;\n    lodash.valuesIn = valuesIn;\n    lodash.without = without;\n    lodash.words = words;\n    lodash.wrap = wrap;\n    lodash.xor = xor;\n    lodash.xorBy = xorBy;\n    lodash.xorWith = xorWith;\n    lodash.zip = zip;\n    lodash.zipObject = zipObject;\n    lodash.zipObjectDeep = zipObjectDeep;\n    lodash.zipWith = zipWith;\n\n    // Add aliases.\n    lodash.entries = toPairs;\n    lodash.entriesIn = toPairsIn;\n    lodash.extend = assignIn;\n    lodash.extendWith = assignInWith;\n\n    // Add methods to `lodash.prototype`.\n    mixin(lodash, lodash);\n\n    /*------------------------------------------------------------------------*/\n\n    // Add methods that return unwrapped values in chain sequences.\n    lodash.add = add;\n    lodash.attempt = attempt;\n    lodash.camelCase = camelCase;\n    lodash.capitalize = capitalize;\n    lodash.ceil = ceil;\n    lodash.clamp = clamp;\n    lodash.clone = clone;\n    lodash.cloneDeep = cloneDeep;\n    lodash.cloneDeepWith = cloneDeepWith;\n    lodash.cloneWith = cloneWith;\n    lodash.conformsTo = conformsTo;\n    lodash.deburr = deburr;\n    lodash.defaultTo = defaultTo;\n    lodash.divide = divide;\n    lodash.endsWith = endsWith;\n    lodash.eq = eq;\n    lodash.escape = escape;\n    lodash.escapeRegExp = escapeRegExp;\n    lodash.every = every;\n    lodash.find = find;\n    lodash.findIndex = findIndex;\n    lodash.findKey = findKey;\n    lodash.findLast = findLast;\n    lodash.findLastIndex = findLastIndex;\n    lodash.findLastKey = findLastKey;\n    lodash.floor = floor;\n    lodash.forEach = forEach;\n    lodash.forEachRight = forEachRight;\n    lodash.forIn = forIn;\n    lodash.forInRight = forInRight;\n    lodash.forOwn = forOwn;\n    lodash.forOwnRight = forOwnRight;\n    lodash.get = get;\n    lodash.gt = gt;\n    lodash.gte = gte;\n    lodash.has = has;\n    lodash.hasIn = hasIn;\n    lodash.head = head;\n    lodash.identity = identity;\n    lodash.includes = includes;\n    lodash.indexOf = indexOf;\n    lodash.inRange = inRange;\n    lodash.invoke = invoke;\n    lodash.isArguments = isArguments;\n    lodash.isArray = isArray;\n    lodash.isArrayBuffer = isArrayBuffer;\n    lodash.isArrayLike = isArrayLike;\n    lodash.isArrayLikeObject = isArrayLikeObject;\n    lodash.isBoolean = isBoolean;\n    lodash.isBuffer = isBuffer;\n    lodash.isDate = isDate;\n    lodash.isElement = isElement;\n    lodash.isEmpty = isEmpty;\n    lodash.isEqual = isEqual;\n    lodash.isEqualWith = isEqualWith;\n    lodash.isError = isError;\n    lodash.isFinite = isFinite;\n    lodash.isFunction = isFunction;\n    lodash.isInteger = isInteger;\n    lodash.isLength = isLength;\n    lodash.isMap = isMap;\n    lodash.isMatch = isMatch;\n    lodash.isMatchWith = isMatchWith;\n    lodash.isNaN = isNaN;\n    lodash.isNative = isNative;\n    lodash.isNil = isNil;\n    lodash.isNull = isNull;\n    lodash.isNumber = isNumber;\n    lodash.isObject = isObject;\n    lodash.isObjectLike = isObjectLike;\n    lodash.isPlainObject = isPlainObject;\n    lodash.isRegExp = isRegExp;\n    lodash.isSafeInteger = isSafeInteger;\n    lodash.isSet = isSet;\n    lodash.isString = isString;\n    lodash.isSymbol = isSymbol;\n    lodash.isTypedArray = isTypedArray;\n    lodash.isUndefined = isUndefined;\n    lodash.isWeakMap = isWeakMap;\n    lodash.isWeakSet = isWeakSet;\n    lodash.join = join;\n    lodash.kebabCase = kebabCase;\n    lodash.last = last;\n    lodash.lastIndexOf = lastIndexOf;\n    lodash.lowerCase = lowerCase;\n    lodash.lowerFirst = lowerFirst;\n    lodash.lt = lt;\n    lodash.lte = lte;\n    lodash.max = max;\n    lodash.maxBy = maxBy;\n    lodash.mean = mean;\n    lodash.meanBy = meanBy;\n    lodash.min = min;\n    lodash.minBy = minBy;\n    lodash.stubArray = stubArray;\n    lodash.stubFalse = stubFalse;\n    lodash.stubObject = stubObject;\n    lodash.stubString = stubString;\n    lodash.stubTrue = stubTrue;\n    lodash.multiply = multiply;\n    lodash.nth = nth;\n    lodash.noConflict = noConflict;\n    lodash.noop = noop;\n    lodash.now = now;\n    lodash.pad = pad;\n    lodash.padEnd = padEnd;\n    lodash.padStart = padStart;\n    lodash.parseInt = parseInt;\n    lodash.random = random;\n    lodash.reduce = reduce;\n    lodash.reduceRight = reduceRight;\n    lodash.repeat = repeat;\n    lodash.replace = replace;\n    lodash.result = result;\n    lodash.round = round;\n    lodash.runInContext = runInContext;\n    lodash.sample = sample;\n    lodash.size = size;\n    lodash.snakeCase = snakeCase;\n    lodash.some = some;\n    lodash.sortedIndex = sortedIndex;\n    lodash.sortedIndexBy = sortedIndexBy;\n    lodash.sortedIndexOf = sortedIndexOf;\n    lodash.sortedLastIndex = sortedLastIndex;\n    lodash.sortedLastIndexBy = sortedLastIndexBy;\n    lodash.sortedLastIndexOf = sortedLastIndexOf;\n    lodash.startCase = startCase;\n    lodash.startsWith = startsWith;\n    lodash.subtract = subtract;\n    lodash.sum = sum;\n    lodash.sumBy = sumBy;\n    lodash.template = template;\n    lodash.times = times;\n    lodash.toFinite = toFinite;\n    lodash.toInteger = toInteger;\n    lodash.toLength = toLength;\n    lodash.toLower = toLower;\n    lodash.toNumber = toNumber;\n    lodash.toSafeInteger = toSafeInteger;\n    lodash.toString = toString;\n    lodash.toUpper = toUpper;\n    lodash.trim = trim;\n    lodash.trimEnd = trimEnd;\n    lodash.trimStart = trimStart;\n    lodash.truncate = truncate;\n    lodash.unescape = unescape;\n    lodash.uniqueId = uniqueId;\n    lodash.upperCase = upperCase;\n    lodash.upperFirst = upperFirst;\n\n    // Add aliases.\n    lodash.each = forEach;\n    lodash.eachRight = forEachRight;\n    lodash.first = head;\n\n    mixin(lodash, (function() {\n      var source = {};\n      baseForOwn(lodash, function(func, methodName) {\n        if (!hasOwnProperty.call(lodash.prototype, methodName)) {\n          source[methodName] = func;\n        }\n      });\n      return source;\n    }()), { 'chain': false });\n\n    /*------------------------------------------------------------------------*/\n\n    /**\n     * The semantic version number.\n     *\n     * @static\n     * @memberOf _\n     * @type {string}\n     */\n    lodash.VERSION = VERSION;\n\n    // Assign default placeholders.\n    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {\n      lodash[methodName].placeholder = lodash;\n    });\n\n    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.\n    arrayEach(['drop', 'take'], function(methodName, index) {\n      LazyWrapper.prototype[methodName] = function(n) {\n        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);\n\n        var result = (this.__filtered__ && !index)\n          ? new LazyWrapper(this)\n          : this.clone();\n\n        if (result.__filtered__) {\n          result.__takeCount__ = nativeMin(n, result.__takeCount__);\n        } else {\n          result.__views__.push({\n            'size': nativeMin(n, MAX_ARRAY_LENGTH),\n            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')\n          });\n        }\n        return result;\n      };\n\n      LazyWrapper.prototype[methodName + 'Right'] = function(n) {\n        return this.reverse()[methodName](n).reverse();\n      };\n    });\n\n    // Add `LazyWrapper` methods that accept an `iteratee` value.\n    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {\n      var type = index + 1,\n          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;\n\n      LazyWrapper.prototype[methodName] = function(iteratee) {\n        var result = this.clone();\n        result.__iteratees__.push({\n          'iteratee': getIteratee(iteratee, 3),\n          'type': type\n        });\n        result.__filtered__ = result.__filtered__ || isFilter;\n        return result;\n      };\n    });\n\n    // Add `LazyWrapper` methods for `_.head` and `_.last`.\n    arrayEach(['head', 'last'], function(methodName, index) {\n      var takeName = 'take' + (index ? 'Right' : '');\n\n      LazyWrapper.prototype[methodName] = function() {\n        return this[takeName](1).value()[0];\n      };\n    });\n\n    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.\n    arrayEach(['initial', 'tail'], function(methodName, index) {\n      var dropName = 'drop' + (index ? '' : 'Right');\n\n      LazyWrapper.prototype[methodName] = function() {\n        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);\n      };\n    });\n\n    LazyWrapper.prototype.compact = function() {\n      return this.filter(identity);\n    };\n\n    LazyWrapper.prototype.find = function(predicate) {\n      return this.filter(predicate).head();\n    };\n\n    LazyWrapper.prototype.findLast = function(predicate) {\n      return this.reverse().find(predicate);\n    };\n\n    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {\n      if (typeof path == 'function') {\n        return new LazyWrapper(this);\n      }\n      return this.map(function(value) {\n        return baseInvoke(value, path, args);\n      });\n    });\n\n    LazyWrapper.prototype.reject = function(predicate) {\n      return this.filter(negate(getIteratee(predicate)));\n    };\n\n    LazyWrapper.prototype.slice = function(start, end) {\n      start = toInteger(start);\n\n      var result = this;\n      if (result.__filtered__ && (start > 0 || end < 0)) {\n        return new LazyWrapper(result);\n      }\n      if (start < 0) {\n        result = result.takeRight(-start);\n      } else if (start) {\n        result = result.drop(start);\n      }\n      if (end !== undefined) {\n        end = toInteger(end);\n        result = end < 0 ? result.dropRight(-end) : result.take(end - start);\n      }\n      return result;\n    };\n\n    LazyWrapper.prototype.takeRightWhile = function(predicate) {\n      return this.reverse().takeWhile(predicate).reverse();\n    };\n\n    LazyWrapper.prototype.toArray = function() {\n      return this.take(MAX_ARRAY_LENGTH);\n    };\n\n    // Add `LazyWrapper` methods to `lodash.prototype`.\n    baseForOwn(LazyWrapper.prototype, function(func, methodName) {\n      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),\n          isTaker = /^(?:head|last)$/.test(methodName),\n          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],\n          retUnwrapped = isTaker || /^find/.test(methodName);\n\n      if (!lodashFunc) {\n        return;\n      }\n      lodash.prototype[methodName] = function() {\n        var value = this.__wrapped__,\n            args = isTaker ? [1] : arguments,\n            isLazy = value instanceof LazyWrapper,\n            iteratee = args[0],\n            useLazy = isLazy || isArray(value);\n\n        var interceptor = function(value) {\n          var result = lodashFunc.apply(lodash, arrayPush([value], args));\n          return (isTaker && chainAll) ? result[0] : result;\n        };\n\n        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {\n          // Avoid lazy use if the iteratee has a \"length\" value other than `1`.\n          isLazy = useLazy = false;\n        }\n        var chainAll = this.__chain__,\n            isHybrid = !!this.__actions__.length,\n            isUnwrapped = retUnwrapped && !chainAll,\n            onlyLazy = isLazy && !isHybrid;\n\n        if (!retUnwrapped && useLazy) {\n          value = onlyLazy ? value : new LazyWrapper(this);\n          var result = func.apply(value, args);\n          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });\n          return new LodashWrapper(result, chainAll);\n        }\n        if (isUnwrapped && onlyLazy) {\n          return func.apply(this, args);\n        }\n        result = this.thru(interceptor);\n        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;\n      };\n    });\n\n    // Add `Array` methods to `lodash.prototype`.\n    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {\n      var func = arrayProto[methodName],\n          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',\n          retUnwrapped = /^(?:pop|shift)$/.test(methodName);\n\n      lodash.prototype[methodName] = function() {\n        var args = arguments;\n        if (retUnwrapped && !this.__chain__) {\n          var value = this.value();\n          return func.apply(isArray(value) ? value : [], args);\n        }\n        return this[chainName](function(value) {\n          return func.apply(isArray(value) ? value : [], args);\n        });\n      };\n    });\n\n    // Map minified method names to their real names.\n    baseForOwn(LazyWrapper.prototype, function(func, methodName) {\n      var lodashFunc = lodash[methodName];\n      if (lodashFunc) {\n        var key = lodashFunc.name + '';\n        if (!hasOwnProperty.call(realNames, key)) {\n          realNames[key] = [];\n        }\n        realNames[key].push({ 'name': methodName, 'func': lodashFunc });\n      }\n    });\n\n    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{\n      'name': 'wrapper',\n      'func': undefined\n    }];\n\n    // Add methods to `LazyWrapper`.\n    LazyWrapper.prototype.clone = lazyClone;\n    LazyWrapper.prototype.reverse = lazyReverse;\n    LazyWrapper.prototype.value = lazyValue;\n\n    // Add chain sequence methods to the `lodash` wrapper.\n    lodash.prototype.at = wrapperAt;\n    lodash.prototype.chain = wrapperChain;\n    lodash.prototype.commit = wrapperCommit;\n    lodash.prototype.next = wrapperNext;\n    lodash.prototype.plant = wrapperPlant;\n    lodash.prototype.reverse = wrapperReverse;\n    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;\n\n    // Add lazy aliases.\n    lodash.prototype.first = lodash.prototype.head;\n\n    if (symIterator) {\n      lodash.prototype[symIterator] = wrapperToIterator;\n    }\n    return lodash;\n  });\n\n  /*--------------------------------------------------------------------------*/\n\n  // Export lodash.\n  var _ = runInContext();\n\n  // Some AMD build optimizers, like r.js, check for condition patterns like:\n  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {\n    // Expose Lodash on the global object to prevent errors when Lodash is\n    // loaded by a script tag in the presence of an AMD loader.\n    // See http://requirejs.org/docs/errors.html#mismatch for more details.\n    // Use `_.noConflict` to remove Lodash from the global object.\n    root._ = _;\n\n    // Define as an anonymous module so, through path mapping, it can be\n    // referenced as the \"underscore\" module.\n    define(function() {\n      return _;\n    });\n  }\n  // Check for `exports` after `define` in case a build optimizer adds it.\n  else if (freeModule) {\n    // Export for Node.js.\n    (freeModule.exports = _)._ = _;\n    // Export for CommonJS support.\n    freeExports._ = _;\n  }\n  else {\n    // Export to the global object.\n    root._ = _;\n  }\n}.call(this));\n","/**\n * oclazyload - Load modules on demand (lazy load) with angularJS\n * @version v1.0.10\n * @link https://github.com/ocombe/ocLazyLoad\n * @license MIT\n * @author Olivier Combe <olivier.combe@gmail.com>\n */\n(function (angular, window) {\n    'use strict';\n\n    var regModules = ['ng', 'oc.lazyLoad'],\n        regInvokes = {},\n        regConfigs = [],\n        modulesToLoad = [],\n        // modules to load from angular.module or other sources\n    realModules = [],\n        // real modules called from angular.module\n    recordDeclarations = [],\n        broadcast = angular.noop,\n        runBlocks = {},\n        justLoaded = [];\n\n    var ocLazyLoad = angular.module('oc.lazyLoad', ['ng']);\n\n    ocLazyLoad.provider('$ocLazyLoad', [\"$controllerProvider\", \"$provide\", \"$compileProvider\", \"$filterProvider\", \"$injector\", \"$animateProvider\", function ($controllerProvider, $provide, $compileProvider, $filterProvider, $injector, $animateProvider) {\n        var modules = {},\n            providers = {\n            $controllerProvider: $controllerProvider,\n            $compileProvider: $compileProvider,\n            $filterProvider: $filterProvider,\n            $provide: $provide, // other things (constant, decorator, provider, factory, service)\n            $injector: $injector,\n            $animateProvider: $animateProvider\n        },\n            debug = false,\n            events = false,\n            moduleCache = [],\n            modulePromises = {};\n\n        moduleCache.push = function (value) {\n            if (this.indexOf(value) === -1) {\n                Array.prototype.push.apply(this, arguments);\n            }\n        };\n\n        this.config = function (config) {\n            // If we want to define modules configs\n            if (angular.isDefined(config.modules)) {\n                if (angular.isArray(config.modules)) {\n                    angular.forEach(config.modules, function (moduleConfig) {\n                        modules[moduleConfig.name] = moduleConfig;\n                    });\n                } else {\n                    modules[config.modules.name] = config.modules;\n                }\n            }\n\n            if (angular.isDefined(config.debug)) {\n                debug = config.debug;\n            }\n\n            if (angular.isDefined(config.events)) {\n                events = config.events;\n            }\n        };\n\n        /**\r\n         * Get the list of existing registered modules\r\n         * @param element\r\n         */\n        this._init = function _init(element) {\n            // this is probably useless now because we override angular.bootstrap\n            if (modulesToLoad.length === 0) {\n                var elements = [element],\n                    names = ['ng:app', 'ng-app', 'x-ng-app', 'data-ng-app'],\n                    NG_APP_CLASS_REGEXP = /\\sng[:\\-]app(:\\s*([\\w\\d_]+);?)?\\s/,\n                    append = function append(elm) {\n                    return elm && elements.push(elm);\n                };\n\n                angular.forEach(names, function (name) {\n                    names[name] = true;\n                    append(document.getElementById(name));\n                    name = name.replace(':', '\\\\:');\n                    if (typeof element[0] !== 'undefined' && element[0].querySelectorAll) {\n                        angular.forEach(element[0].querySelectorAll('.' + name), append);\n                        angular.forEach(element[0].querySelectorAll('.' + name + '\\\\:'), append);\n                        angular.forEach(element[0].querySelectorAll('[' + name + ']'), append);\n                    }\n                });\n\n                angular.forEach(elements, function (elm) {\n                    if (modulesToLoad.length === 0) {\n                        var className = ' ' + element.className + ' ';\n                        var match = NG_APP_CLASS_REGEXP.exec(className);\n                        if (match) {\n                            modulesToLoad.push((match[2] || '').replace(/\\s+/g, ','));\n                        } else {\n                            angular.forEach(elm.attributes, function (attr) {\n                                if (modulesToLoad.length === 0 && names[attr.name]) {\n                                    modulesToLoad.push(attr.value);\n                                }\n                            });\n                        }\n                    }\n                });\n            }\n\n            if (modulesToLoad.length === 0 && !((window.jasmine || window.mocha) && angular.isDefined(angular.mock))) {\n                console.error('No module found during bootstrap, unable to init ocLazyLoad. You should always use the ng-app directive or angular.boostrap when you use ocLazyLoad.');\n            }\n\n            var addReg = function addReg(moduleName) {\n                if (regModules.indexOf(moduleName) === -1) {\n                    // register existing modules\n                    regModules.push(moduleName);\n                    var mainModule = angular.module(moduleName);\n\n                    // register existing components (directives, services, ...)\n                    _invokeQueue(null, mainModule._invokeQueue, moduleName);\n                    _invokeQueue(null, mainModule._configBlocks, moduleName); // angular 1.3+\n\n                    angular.forEach(mainModule.requires, addReg);\n                }\n            };\n\n            angular.forEach(modulesToLoad, function (moduleName) {\n                addReg(moduleName);\n            });\n\n            modulesToLoad = []; // reset for next bootstrap\n            recordDeclarations.pop(); // wait for the next lazy load\n        };\n\n        /**\r\n         * Like JSON.stringify but that doesn't throw on circular references\r\n         * @param obj\r\n         */\n        var stringify = function stringify(obj) {\n            try {\n                return JSON.stringify(obj);\n            } catch (e) {\n                var cache = [];\n                return JSON.stringify(obj, function (key, value) {\n                    if (angular.isObject(value) && value !== null) {\n                        if (cache.indexOf(value) !== -1) {\n                            // Circular reference found, discard key\n                            return;\n                        }\n                        // Store value in our collection\n                        cache.push(value);\n                    }\n                    return value;\n                });\n            }\n        };\n\n        var hashCode = function hashCode(str) {\n            var hash = 0,\n                i,\n                chr,\n                len;\n            if (str.length == 0) {\n                return hash;\n            }\n            for (i = 0, len = str.length; i < len; i++) {\n                chr = str.charCodeAt(i);\n                hash = (hash << 5) - hash + chr;\n                hash |= 0; // Convert to 32bit integer\n            }\n            return hash;\n        };\n\n        function _register(providers, registerModules, params) {\n            if (registerModules) {\n                var k,\n                    moduleName,\n                    moduleFn,\n                    tempRunBlocks = [];\n                for (k = registerModules.length - 1; k >= 0; k--) {\n                    moduleName = registerModules[k];\n                    if (!angular.isString(moduleName)) {\n                        moduleName = getModuleName(moduleName);\n                    }\n                    if (!moduleName || justLoaded.indexOf(moduleName) !== -1 || modules[moduleName] && realModules.indexOf(moduleName) === -1) {\n                        continue;\n                    }\n                    // new if not registered\n                    var newModule = regModules.indexOf(moduleName) === -1;\n                    moduleFn = ngModuleFct(moduleName);\n                    if (newModule) {\n                        regModules.push(moduleName);\n                        _register(providers, moduleFn.requires, params);\n                    }\n                    if (moduleFn._runBlocks.length > 0) {\n                        // new run blocks detected! Replace the old ones (if existing)\n                        runBlocks[moduleName] = [];\n                        while (moduleFn._runBlocks.length > 0) {\n                            runBlocks[moduleName].push(moduleFn._runBlocks.shift());\n                        }\n                    }\n                    if (angular.isDefined(runBlocks[moduleName]) && (newModule || params.rerun)) {\n                        tempRunBlocks = tempRunBlocks.concat(runBlocks[moduleName]);\n                    }\n                    _invokeQueue(providers, moduleFn._invokeQueue, moduleName, params.reconfig);\n                    _invokeQueue(providers, moduleFn._configBlocks, moduleName, params.reconfig); // angular 1.3+\n                    broadcast(newModule ? 'ocLazyLoad.moduleLoaded' : 'ocLazyLoad.moduleReloaded', moduleName);\n                    registerModules.pop();\n                    justLoaded.push(moduleName);\n                }\n                // execute the run blocks at the end\n                var instanceInjector = providers.getInstanceInjector();\n                angular.forEach(tempRunBlocks, function (fn) {\n                    instanceInjector.invoke(fn);\n                });\n            }\n        }\n\n        function _registerInvokeList(args, moduleName) {\n            var invokeList = args[2][0],\n                type = args[1],\n                newInvoke = false;\n            if (angular.isUndefined(regInvokes[moduleName])) {\n                regInvokes[moduleName] = {};\n            }\n            if (angular.isUndefined(regInvokes[moduleName][type])) {\n                regInvokes[moduleName][type] = {};\n            }\n            var onInvoke = function onInvoke(invokeName, invoke) {\n                if (!regInvokes[moduleName][type].hasOwnProperty(invokeName)) {\n                    regInvokes[moduleName][type][invokeName] = [];\n                }\n                if (checkHashes(invoke, regInvokes[moduleName][type][invokeName])) {\n                    newInvoke = true;\n                    regInvokes[moduleName][type][invokeName].push(invoke);\n                    broadcast('ocLazyLoad.componentLoaded', [moduleName, type, invokeName]);\n                }\n            };\n\n            function checkHashes(potentialNew, invokes) {\n                var isNew = true,\n                    newHash;\n                if (invokes.length) {\n                    newHash = signature(potentialNew);\n                    angular.forEach(invokes, function (invoke) {\n                        isNew = isNew && signature(invoke) !== newHash;\n                    });\n                }\n                return isNew;\n            }\n\n            function signature(data) {\n                if (angular.isArray(data)) {\n                    // arrays are objects, we need to test for it first\n                    return hashCode(data.toString());\n                } else if (angular.isObject(data)) {\n                    // constants & values for example\n                    return hashCode(stringify(data));\n                } else {\n                    if (angular.isDefined(data) && data !== null) {\n                        return hashCode(data.toString());\n                    } else {\n                        // null & undefined constants\n                        return data;\n                    }\n                }\n            }\n\n            if (angular.isString(invokeList)) {\n                onInvoke(invokeList, args[2][1]);\n            } else if (angular.isObject(invokeList)) {\n                angular.forEach(invokeList, function (invoke, key) {\n                    if (angular.isString(invoke)) {\n                        // decorators for example\n                        onInvoke(invoke, invokeList[1]);\n                    } else {\n                        // components registered as object lists {\"componentName\": function() {}}\n                        onInvoke(key, invoke);\n                    }\n                });\n            } else {\n                return false;\n            }\n            return newInvoke;\n        }\n\n        function _invokeQueue(providers, queue, moduleName, reconfig) {\n            if (!queue) {\n                return;\n            }\n\n            var i, len, args, provider;\n            for (i = 0, len = queue.length; i < len; i++) {\n                args = queue[i];\n                if (angular.isArray(args)) {\n                    if (providers !== null) {\n                        if (providers.hasOwnProperty(args[0])) {\n                            provider = providers[args[0]];\n                        } else {\n                            throw new Error('unsupported provider ' + args[0]);\n                        }\n                    }\n                    var isNew = _registerInvokeList(args, moduleName);\n                    if (args[1] !== 'invoke') {\n                        if (isNew && angular.isDefined(provider)) {\n                            provider[args[1]].apply(provider, args[2]);\n                        }\n                    } else {\n                        // config block\n                        var callInvoke = function callInvoke(fct) {\n                            var invoked = regConfigs.indexOf(moduleName + '-' + fct);\n                            if (invoked === -1 || reconfig) {\n                                if (invoked === -1) {\n                                    regConfigs.push(moduleName + '-' + fct);\n                                }\n                                if (angular.isDefined(provider)) {\n                                    provider[args[1]].apply(provider, args[2]);\n                                }\n                            }\n                        };\n                        if (angular.isFunction(args[2][0])) {\n                            callInvoke(args[2][0]);\n                        } else if (angular.isArray(args[2][0])) {\n                            for (var j = 0, jlen = args[2][0].length; j < jlen; j++) {\n                                if (angular.isFunction(args[2][0][j])) {\n                                    callInvoke(args[2][0][j]);\n                                }\n                            }\n                        }\n                    }\n                }\n            }\n        }\n\n        function getModuleName(module) {\n            var moduleName = null;\n            if (angular.isString(module)) {\n                moduleName = module;\n            } else if (angular.isObject(module) && module.hasOwnProperty('name') && angular.isString(module.name)) {\n                moduleName = module.name;\n            }\n            return moduleName;\n        }\n\n        function moduleExists(moduleName) {\n            if (!angular.isString(moduleName)) {\n                return false;\n            }\n            try {\n                return ngModuleFct(moduleName);\n            } catch (e) {\n                if (/No module/.test(e) || e.message.indexOf('$injector:nomod') > -1) {\n                    return false;\n                }\n            }\n        }\n\n        this.$get = [\"$log\", \"$rootElement\", \"$rootScope\", \"$cacheFactory\", \"$q\", function ($log, $rootElement, $rootScope, $cacheFactory, $q) {\n            var instanceInjector,\n                filesCache = $cacheFactory('ocLazyLoad');\n\n            if (!debug) {\n                $log = {};\n                $log['error'] = angular.noop;\n                $log['warn'] = angular.noop;\n                $log['info'] = angular.noop;\n            }\n\n            // Make this lazy because when $get() is called the instance injector hasn't been assigned to the rootElement yet\n            providers.getInstanceInjector = function () {\n                return instanceInjector ? instanceInjector : instanceInjector = $rootElement.data('$injector') || angular.injector();\n            };\n\n            broadcast = function broadcast(eventName, params) {\n                if (events) {\n                    $rootScope.$broadcast(eventName, params);\n                }\n                if (debug) {\n                    $log.info(eventName, params);\n                }\n            };\n\n            function reject(e) {\n                var deferred = $q.defer();\n                $log.error(e.message);\n                deferred.reject(e);\n                return deferred.promise;\n            }\n\n            return {\n                _broadcast: broadcast,\n\n                _$log: $log,\n\n                /**\r\n                 * Returns the files cache used by the loaders to store the files currently loading\r\n                 * @returns {*}\r\n                 */\n                _getFilesCache: function getFilesCache() {\n                    return filesCache;\n                },\n\n                /**\r\n                 * Let the service know that it should monitor angular.module because files are loading\r\n                 * @param watch boolean\r\n                 */\n                toggleWatch: function toggleWatch(watch) {\n                    if (watch) {\n                        recordDeclarations.push(true);\n                    } else {\n                        recordDeclarations.pop();\n                    }\n                },\n\n                /**\r\n                 * Let you get a module config object\r\n                 * @param moduleName String the name of the module\r\n                 * @returns {*}\r\n                 */\n                getModuleConfig: function getModuleConfig(moduleName) {\n                    if (!angular.isString(moduleName)) {\n                        throw new Error('You need to give the name of the module to get');\n                    }\n                    if (!modules[moduleName]) {\n                        return null;\n                    }\n                    return angular.copy(modules[moduleName]);\n                },\n\n                /**\r\n                 * Let you define a module config object\r\n                 * @param moduleConfig Object the module config object\r\n                 * @returns {*}\r\n                 */\n                setModuleConfig: function setModuleConfig(moduleConfig) {\n                    if (!angular.isObject(moduleConfig)) {\n                        throw new Error('You need to give the module config object to set');\n                    }\n                    modules[moduleConfig.name] = moduleConfig;\n                    return moduleConfig;\n                },\n\n                /**\r\n                 * Returns the list of loaded modules\r\n                 * @returns {string[]}\r\n                 */\n                getModules: function getModules() {\n                    return regModules;\n                },\n\n                /**\r\n                 * Let you check if a module has been loaded into Angular or not\r\n                 * @param modulesNames String/Object a module name, or a list of module names\r\n                 * @returns {boolean}\r\n                 */\n                isLoaded: function isLoaded(modulesNames) {\n                    var moduleLoaded = function moduleLoaded(module) {\n                        var isLoaded = regModules.indexOf(module) > -1;\n                        if (!isLoaded) {\n                            isLoaded = !!moduleExists(module);\n                        }\n                        return isLoaded;\n                    };\n                    if (angular.isString(modulesNames)) {\n                        modulesNames = [modulesNames];\n                    }\n                    if (angular.isArray(modulesNames)) {\n                        var i, len;\n                        for (i = 0, len = modulesNames.length; i < len; i++) {\n                            if (!moduleLoaded(modulesNames[i])) {\n                                return false;\n                            }\n                        }\n                        return true;\n                    } else {\n                        throw new Error('You need to define the module(s) name(s)');\n                    }\n                },\n\n                /**\r\n                 * Given a module, return its name\r\n                 * @param module\r\n                 * @returns {String}\r\n                 */\n                _getModuleName: getModuleName,\n\n                /**\r\n                 * Returns a module if it exists\r\n                 * @param moduleName\r\n                 * @returns {module}\r\n                 */\n                _getModule: function getModule(moduleName) {\n                    try {\n                        return ngModuleFct(moduleName);\n                    } catch (e) {\n                        // this error message really suxx\n                        if (/No module/.test(e) || e.message.indexOf('$injector:nomod') > -1) {\n                            e.message = 'The module \"' + stringify(moduleName) + '\" that you are trying to load does not exist. ' + e.message;\n                        }\n                        throw e;\n                    }\n                },\n\n                /**\r\n                 * Check if a module exists and returns it if it does\r\n                 * @param moduleName\r\n                 * @returns {boolean}\r\n                 */\n                moduleExists: moduleExists,\n\n                /**\r\n                 * Load the dependencies, and might try to load new files depending on the config\r\n                 * @param moduleName (String or Array of Strings)\r\n                 * @param localParams\r\n                 * @returns {*}\r\n                 * @private\r\n                 */\n                _loadDependencies: function _loadDependencies(moduleName, localParams) {\n                    var loadedModule,\n                        requires,\n                        diff,\n                        promisesList = [],\n                        self = this;\n\n                    moduleName = self._getModuleName(moduleName);\n\n                    if (moduleName === null) {\n                        return $q.when();\n                    } else {\n                        try {\n                            loadedModule = self._getModule(moduleName);\n                        } catch (e) {\n                            return reject(e);\n                        }\n                        // get unloaded requires\n                        requires = self.getRequires(loadedModule);\n                    }\n\n                    angular.forEach(requires, function (requireEntry) {\n                        // If no configuration is provided, try and find one from a previous load.\n                        // If there isn't one, bail and let the normal flow run\n                        if (angular.isString(requireEntry)) {\n                            var config = self.getModuleConfig(requireEntry);\n                            if (config === null) {\n                                moduleCache.push(requireEntry); // We don't know about this module, but something else might, so push it anyway.\n                                return;\n                            }\n                            requireEntry = config;\n                            // ignore the name because it's probably not a real module name\n                            config.name = undefined;\n                        }\n\n                        // Check if this dependency has been loaded previously\n                        if (self.moduleExists(requireEntry.name)) {\n                            // compare against the already loaded module to see if the new definition adds any new files\n                            diff = requireEntry.files.filter(function (n) {\n                                return self.getModuleConfig(requireEntry.name).files.indexOf(n) < 0;\n                            });\n\n                            // If the module was redefined, advise via the console\n                            if (diff.length !== 0) {\n                                self._$log.warn('Module \"', moduleName, '\" attempted to redefine configuration for dependency. \"', requireEntry.name, '\"\\n Additional Files Loaded:', diff);\n                            }\n\n                            // Push everything to the file loader, it will weed out the duplicates.\n                            if (angular.isDefined(self.filesLoader)) {\n                                // if a files loader is defined\n                                promisesList.push(self.filesLoader(requireEntry, localParams).then(function () {\n                                    return self._loadDependencies(requireEntry);\n                                }));\n                            } else {\n                                return reject(new Error('Error: New dependencies need to be loaded from external files (' + requireEntry.files + '), but no loader has been defined.'));\n                            }\n                            return;\n                        } else if (angular.isArray(requireEntry)) {\n                            var files = [];\n                            angular.forEach(requireEntry, function (entry) {\n                                // let's check if the entry is a file name or a config name\n                                var config = self.getModuleConfig(entry);\n                                if (config === null) {\n                                    files.push(entry);\n                                } else if (config.files) {\n                                    files = files.concat(config.files);\n                                }\n                            });\n                            if (files.length > 0) {\n                                requireEntry = {\n                                    files: files\n                                };\n                            }\n                        } else if (angular.isObject(requireEntry)) {\n                            if (requireEntry.hasOwnProperty('name') && requireEntry['name']) {\n                                // The dependency doesn't exist in the module cache and is a new configuration, so store and push it.\n                                self.setModuleConfig(requireEntry);\n                                moduleCache.push(requireEntry['name']);\n                            }\n                        }\n\n                        // Check if the dependency has any files that need to be loaded. If there are, push a new promise to the promise list.\n                        if (angular.isDefined(requireEntry.files) && requireEntry.files.length !== 0) {\n                            if (angular.isDefined(self.filesLoader)) {\n                                // if a files loader is defined\n                                promisesList.push(self.filesLoader(requireEntry, localParams).then(function () {\n                                    return self._loadDependencies(requireEntry);\n                                }));\n                            } else {\n                                return reject(new Error('Error: the module \"' + requireEntry.name + '\" is defined in external files (' + requireEntry.files + '), but no loader has been defined.'));\n                            }\n                        }\n                    });\n\n                    // Create a wrapper promise to watch the promise list and resolve it once everything is done.\n                    return $q.all(promisesList);\n                },\n\n                /**\r\n                 * Inject new modules into Angular\r\n                 * @param moduleName\r\n                 * @param localParams\r\n                 * @param real\r\n                 */\n                inject: function inject(moduleName) {\n                    var localParams = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];\n                    var real = arguments.length <= 2 || arguments[2] === undefined ? false : arguments[2];\n\n                    var self = this,\n                        deferred = $q.defer();\n                    if (angular.isDefined(moduleName) && moduleName !== null) {\n                        if (angular.isArray(moduleName)) {\n                            var promisesList = [];\n                            angular.forEach(moduleName, function (module) {\n                                promisesList.push(self.inject(module, localParams, real));\n                            });\n                            return $q.all(promisesList);\n                        } else {\n                            self._addToLoadList(self._getModuleName(moduleName), true, real);\n                        }\n                    }\n                    if (modulesToLoad.length > 0) {\n                        var res = modulesToLoad.slice(); // clean copy\n                        var loadNext = function loadNext(moduleName) {\n                            moduleCache.push(moduleName);\n                            modulePromises[moduleName] = deferred.promise;\n                            self._loadDependencies(moduleName, localParams).then(function success() {\n                                try {\n                                    justLoaded = [];\n                                    _register(providers, moduleCache, localParams);\n                                } catch (e) {\n                                    self._$log.error(e.message);\n                                    deferred.reject(e);\n                                    return;\n                                }\n\n                                if (modulesToLoad.length > 0) {\n                                    loadNext(modulesToLoad.shift()); // load the next in list\n                                } else {\n                                        deferred.resolve(res); // everything has been loaded, resolve\n                                    }\n                            }, function error(err) {\n                                deferred.reject(err);\n                            });\n                        };\n\n                        // load the first in list\n                        loadNext(modulesToLoad.shift());\n                    } else if (localParams && localParams.name && modulePromises[localParams.name]) {\n                        return modulePromises[localParams.name];\n                    } else {\n                        deferred.resolve();\n                    }\n                    return deferred.promise;\n                },\n\n                /**\r\n                 * Get the list of required modules/services/... for this module\r\n                 * @param module\r\n                 * @returns {Array}\r\n                 */\n                getRequires: function getRequires(module) {\n                    var requires = [];\n                    angular.forEach(module.requires, function (requireModule) {\n                        if (regModules.indexOf(requireModule) === -1) {\n                            requires.push(requireModule);\n                        }\n                    });\n                    return requires;\n                },\n\n                /**\r\n                 * Invoke the new modules & component by their providers\r\n                 * @param providers\r\n                 * @param queue\r\n                 * @param moduleName\r\n                 * @param reconfig\r\n                 * @private\r\n                 */\n                _invokeQueue: _invokeQueue,\n\n                /**\r\n                 * Check if a module has been invoked and registers it if not\r\n                 * @param args\r\n                 * @param moduleName\r\n                 * @returns {boolean} is new\r\n                 */\n                _registerInvokeList: _registerInvokeList,\n\n                /**\r\n                 * Register a new module and loads it, executing the run/config blocks if needed\r\n                 * @param providers\r\n                 * @param registerModules\r\n                 * @param params\r\n                 * @private\r\n                 */\n                _register: _register,\n\n                /**\r\n                 * Add a module name to the list of modules that will be loaded in the next inject\r\n                 * @param name\r\n                 * @param force\r\n                 * @private\r\n                 */\n                _addToLoadList: _addToLoadList,\n\n                /**\r\n                 * Unregister modules (you shouldn't have to use this)\r\n                 * @param modules\r\n                 */\n                _unregister: function _unregister(modules) {\n                    if (angular.isDefined(modules)) {\n                        if (angular.isArray(modules)) {\n                            angular.forEach(modules, function (module) {\n                                regInvokes[module] = undefined;\n                            });\n                        }\n                    }\n                }\n            };\n        }];\n\n        // Let's get the list of loaded modules & components\n        this._init(angular.element(window.document));\n    }]);\n\n    var bootstrapFct = angular.bootstrap;\n    angular.bootstrap = function (element, modules, config) {\n        // Clean state from previous bootstrap\n        regModules = ['ng', 'oc.lazyLoad'];\n        regInvokes = {};\n        regConfigs = [];\n        modulesToLoad = [];\n        realModules = [];\n        recordDeclarations = [];\n        broadcast = angular.noop;\n        runBlocks = {};\n        justLoaded = [];\n        // we use slice to make a clean copy\n        angular.forEach(modules.slice(), function (module) {\n            _addToLoadList(module, true, true);\n        });\n        return bootstrapFct(element, modules, config);\n    };\n\n    var _addToLoadList = function _addToLoadList(name, force, real) {\n        if ((recordDeclarations.length > 0 || force) && angular.isString(name) && modulesToLoad.indexOf(name) === -1) {\n            modulesToLoad.push(name);\n            if (real) {\n                realModules.push(name);\n            }\n        }\n    };\n\n    var ngModuleFct = angular.module;\n    angular.module = function (name, requires, configFn) {\n        _addToLoadList(name, false, true);\n        return ngModuleFct(name, requires, configFn);\n    };\n\n    // CommonJS package manager support:\n    if (typeof module !== 'undefined' && typeof exports !== 'undefined' && module.exports === exports) {\n        module.exports = 'oc.lazyLoad';\n    }\n})(angular, window);\n(function (angular) {\n    'use strict';\n\n    angular.module('oc.lazyLoad').directive('ocLazyLoad', [\"$ocLazyLoad\", \"$compile\", \"$animate\", \"$parse\", \"$timeout\", function ($ocLazyLoad, $compile, $animate, $parse, $timeout) {\n        return {\n            restrict: 'A',\n            terminal: true,\n            priority: 1000,\n            compile: function compile(element, attrs) {\n                // we store the content and remove it before compilation\n                var content = element[0].innerHTML;\n                element.html('');\n\n                return function ($scope, $element, $attr) {\n                    var model = $parse($attr.ocLazyLoad);\n                    $scope.$watch(function () {\n                        return model($scope) || $attr.ocLazyLoad; // it can be a module name (string), an object, an array, or a scope reference to any of this\n                    }, function (moduleName) {\n                        if (angular.isDefined(moduleName)) {\n                            $ocLazyLoad.load(moduleName).then(function () {\n                                // Attach element contents to DOM and then compile them.\n                                // This prevents an issue where IE invalidates saved element objects (HTMLCollections)\n                                // of the compiled contents when attaching to the parent DOM.\n                                $animate.enter(content, $element);\n                                // get the new content & compile it\n                                $compile($element.contents())($scope);\n                            });\n                        }\n                    }, true);\n                };\n            }\n        };\n    }]);\n})(angular);\n(function (angular) {\n    'use strict';\n\n    angular.module('oc.lazyLoad').config([\"$provide\", function ($provide) {\n        $provide.decorator('$ocLazyLoad', [\"$delegate\", \"$q\", \"$window\", \"$interval\", function ($delegate, $q, $window, $interval) {\n            var uaCssChecked = false,\n                useCssLoadPatch = false,\n                anchor = $window.document.getElementsByTagName('head')[0] || $window.document.getElementsByTagName('body')[0];\n\n            /**\r\n             * Load a js/css file\r\n             * @param type\r\n             * @param path\r\n             * @param params\r\n             * @returns promise\r\n             */\n            $delegate.buildElement = function buildElement(type, path, params) {\n                var deferred = $q.defer(),\n                    el,\n                    loaded,\n                    filesCache = $delegate._getFilesCache(),\n                    cacheBuster = function cacheBuster(url) {\n                    var dc = new Date().getTime();\n                    if (url.indexOf('?') >= 0) {\n                        if (url.substring(0, url.length - 1) === '&') {\n                            return url + '_dc=' + dc;\n                        }\n                        return url + '&_dc=' + dc;\n                    } else {\n                        return url + '?_dc=' + dc;\n                    }\n                };\n\n                // Store the promise early so the file load can be detected by other parallel lazy loads\n                // (ie: multiple routes on one page) a 'true' value isn't sufficient\n                // as it causes false positive load results.\n                if (angular.isUndefined(filesCache.get(path))) {\n                    filesCache.put(path, deferred.promise);\n                }\n\n                // Switch in case more content types are added later\n                switch (type) {\n                    case 'css':\n                        el = $window.document.createElement('link');\n                        el.type = 'text/css';\n                        el.rel = 'stylesheet';\n                        el.href = params.cache === false ? cacheBuster(path) : path;\n                        break;\n                    case 'js':\n                        el = $window.document.createElement('script');\n                        el.src = params.cache === false ? cacheBuster(path) : path;\n                        break;\n                    default:\n                        filesCache.remove(path);\n                        deferred.reject(new Error('Requested type \"' + type + '\" is not known. Could not inject \"' + path + '\"'));\n                        break;\n                }\n                el.onload = el['onreadystatechange'] = function (e) {\n                    if (el['readyState'] && !/^c|loade/.test(el['readyState']) || loaded) return;\n                    el.onload = el['onreadystatechange'] = null;\n                    loaded = 1;\n                    $delegate._broadcast('ocLazyLoad.fileLoaded', path);\n                    deferred.resolve(el);\n                };\n                el.onerror = function () {\n                    filesCache.remove(path);\n                    deferred.reject(new Error('Unable to load ' + path));\n                };\n                el.async = params.serie ? 0 : 1;\n\n                var insertBeforeElem = anchor.lastChild;\n                if (params.insertBefore) {\n                    var element = angular.element(angular.isDefined(window.jQuery) ? params.insertBefore : document.querySelector(params.insertBefore));\n                    if (element && element.length > 0) {\n                        insertBeforeElem = element[0];\n                    }\n                }\n                insertBeforeElem.parentNode.insertBefore(el, insertBeforeElem);\n\n                /*\r\n                 The event load or readystatechange doesn't fire in:\r\n                 - PhantomJS 1.9 (headless webkit browser)\r\n                 - iOS < 6       (default mobile browser)\r\n                 - Android < 4.4 (default mobile browser)\r\n                 - Safari < 6    (desktop browser)\r\n                 */\n                if (type == 'css') {\n                    if (!uaCssChecked) {\n                        var ua = $window.navigator.userAgent.toLowerCase();\n\n                        if (ua.indexOf('phantomjs/1.9') > -1) {\n                            // PhantomJS ~1.9\n                            useCssLoadPatch = true;\n                        } else if (/iP(hone|od|ad)/.test($window.navigator.platform)) {\n                            // iOS < 6\n                            var v = $window.navigator.appVersion.match(/OS (\\d+)_(\\d+)_?(\\d+)?/);\n                            var iOSVersion = parseFloat([parseInt(v[1], 10), parseInt(v[2], 10), parseInt(v[3] || 0, 10)].join('.'));\n                            useCssLoadPatch = iOSVersion < 6;\n                        } else if (ua.indexOf('android') > -1) {\n                            // Android < 4.4\n                            var androidVersion = parseFloat(ua.slice(ua.indexOf('android') + 8));\n                            useCssLoadPatch = androidVersion < 4.4;\n                        } else if (ua.indexOf('safari') > -1) {\n                            // Safari < 6\n                            var versionMatch = ua.match(/version\\/([\\.\\d]+)/i);\n                            useCssLoadPatch = versionMatch && versionMatch[1] && parseFloat(versionMatch[1]) < 6;\n                        }\n                    }\n\n                    if (useCssLoadPatch) {\n                        var tries = 1000; // * 20 = 20000 miliseconds\n                        var interval = $interval(function () {\n                            try {\n                                el.sheet.cssRules;\n                                $interval.cancel(interval);\n                                el.onload();\n                            } catch (e) {\n                                if (--tries <= 0) {\n                                    el.onerror();\n                                }\n                            }\n                        }, 20);\n                    }\n                }\n\n                return deferred.promise;\n            };\n\n            return $delegate;\n        }]);\n    }]);\n})(angular);\n(function (angular) {\n    'use strict';\n\n    angular.module('oc.lazyLoad').config([\"$provide\", function ($provide) {\n        $provide.decorator('$ocLazyLoad', [\"$delegate\", \"$q\", function ($delegate, $q) {\n            /**\r\n             * The function that loads new files\r\n             * @param config\r\n             * @param params\r\n             * @returns {*}\r\n             */\n            $delegate.filesLoader = function filesLoader(config) {\n                var params = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];\n\n                var cssFiles = [],\n                    templatesFiles = [],\n                    jsFiles = [],\n                    promises = [],\n                    cachePromise = null,\n                    filesCache = $delegate._getFilesCache();\n\n                $delegate.toggleWatch(true); // start watching angular.module calls\n\n                angular.extend(params, config);\n\n                var pushFile = function pushFile(path) {\n                    var file_type = null,\n                        m;\n                    if (angular.isObject(path)) {\n                        file_type = path.type;\n                        path = path.path;\n                    }\n                    cachePromise = filesCache.get(path);\n                    if (angular.isUndefined(cachePromise) || params.cache === false) {\n\n                        // always check for requirejs syntax just in case\n                        if ((m = /^(css|less|html|htm|js)?(?=!)/.exec(path)) !== null) {\n                            // Detect file type using preceding type declaration (ala requireJS)\n                            file_type = m[1];\n                            path = path.substr(m[1].length + 1, path.length); // Strip the type from the path\n                        }\n\n                        if (!file_type) {\n                            if ((m = /[.](css|less|html|htm|js)?((\\?|#).*)?$/.exec(path)) !== null) {\n                                // Detect file type via file extension\n                                file_type = m[1];\n                            } else if (!$delegate.jsLoader.hasOwnProperty('ocLazyLoadLoader') && $delegate.jsLoader.hasOwnProperty('requirejs')) {\n                                // requirejs\n                                file_type = 'js';\n                            } else {\n                                $delegate._$log.error('File type could not be determined. ' + path);\n                                return;\n                            }\n                        }\n\n                        if ((file_type === 'css' || file_type === 'less') && cssFiles.indexOf(path) === -1) {\n                            cssFiles.push(path);\n                        } else if ((file_type === 'html' || file_type === 'htm') && templatesFiles.indexOf(path) === -1) {\n                            templatesFiles.push(path);\n                        } else if (file_type === 'js' || jsFiles.indexOf(path) === -1) {\n                            jsFiles.push(path);\n                        } else {\n                            $delegate._$log.error('File type is not valid. ' + path);\n                        }\n                    } else if (cachePromise) {\n                        promises.push(cachePromise);\n                    }\n                };\n\n                if (params.serie) {\n                    pushFile(params.files.shift());\n                } else {\n                    angular.forEach(params.files, function (path) {\n                        pushFile(path);\n                    });\n                }\n\n                if (cssFiles.length > 0) {\n                    var cssDeferred = $q.defer();\n                    $delegate.cssLoader(cssFiles, function (err) {\n                        if (angular.isDefined(err) && $delegate.cssLoader.hasOwnProperty('ocLazyLoadLoader')) {\n                            $delegate._$log.error(err);\n                            cssDeferred.reject(err);\n                        } else {\n                            cssDeferred.resolve();\n                        }\n                    }, params);\n                    promises.push(cssDeferred.promise);\n                }\n\n                if (templatesFiles.length > 0) {\n                    var templatesDeferred = $q.defer();\n                    $delegate.templatesLoader(templatesFiles, function (err) {\n                        if (angular.isDefined(err) && $delegate.templatesLoader.hasOwnProperty('ocLazyLoadLoader')) {\n                            $delegate._$log.error(err);\n                            templatesDeferred.reject(err);\n                        } else {\n                            templatesDeferred.resolve();\n                        }\n                    }, params);\n                    promises.push(templatesDeferred.promise);\n                }\n\n                if (jsFiles.length > 0) {\n                    var jsDeferred = $q.defer();\n                    $delegate.jsLoader(jsFiles, function (err) {\n                        if (angular.isDefined(err) && ($delegate.jsLoader.hasOwnProperty(\"ocLazyLoadLoader\") || $delegate.jsLoader.hasOwnProperty(\"requirejs\"))) {\n                            $delegate._$log.error(err);\n                            jsDeferred.reject(err);\n                        } else {\n                            jsDeferred.resolve();\n                        }\n                    }, params);\n                    promises.push(jsDeferred.promise);\n                }\n\n                if (promises.length === 0) {\n                    var deferred = $q.defer(),\n                        err = \"Error: no file to load has been found, if you're trying to load an existing module you should use the 'inject' method instead of 'load'.\";\n                    $delegate._$log.error(err);\n                    deferred.reject(err);\n                    return deferred.promise;\n                } else if (params.serie && params.files.length > 0) {\n                    return $q.all(promises).then(function () {\n                        return $delegate.filesLoader(config, params);\n                    });\n                } else {\n                    return $q.all(promises)['finally'](function (res) {\n                        $delegate.toggleWatch(false); // stop watching angular.module calls\n                        return res;\n                    });\n                }\n            };\n\n            /**\r\n             * Load a module or a list of modules into Angular\r\n             * @param module Mixed the name of a predefined module config object, or a module config object, or an array of either\r\n             * @param params Object optional parameters\r\n             * @returns promise\r\n             */\n            $delegate.load = function (originalModule) {\n                var originalParams = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];\n\n                var self = this,\n                    config = null,\n                    deferredList = [],\n                    deferred = $q.defer(),\n                    errText;\n\n                // clean copy\n                var module = angular.copy(originalModule);\n                var params = angular.copy(originalParams);\n\n                // If module is an array, break it down\n                if (angular.isArray(module)) {\n                    // Resubmit each entry as a single module\n                    angular.forEach(module, function (m) {\n                        deferredList.push(self.load(m, params));\n                    });\n\n                    // Resolve the promise once everything has loaded\n                    $q.all(deferredList).then(function (res) {\n                        deferred.resolve(res);\n                    }, function (err) {\n                        deferred.reject(err);\n                    });\n\n                    return deferred.promise;\n                }\n\n                // Get or Set a configuration depending on what was passed in\n                if (angular.isString(module)) {\n                    config = self.getModuleConfig(module);\n                    if (!config) {\n                        config = {\n                            files: [module]\n                        };\n                    }\n                } else if (angular.isObject(module)) {\n                    // case {type: 'js', path: lazyLoadUrl + 'testModule.fakejs'}\n                    if (angular.isDefined(module.path) && angular.isDefined(module.type)) {\n                        config = {\n                            files: [module]\n                        };\n                    } else {\n                        config = self.setModuleConfig(module);\n                    }\n                }\n\n                if (config === null) {\n                    var moduleName = self._getModuleName(module);\n                    errText = 'Module \"' + (moduleName || 'unknown') + '\" is not configured, cannot load.';\n                    $delegate._$log.error(errText);\n                    deferred.reject(new Error(errText));\n                    return deferred.promise;\n                } else {\n                    // deprecated\n                    if (angular.isDefined(config.template)) {\n                        if (angular.isUndefined(config.files)) {\n                            config.files = [];\n                        }\n                        if (angular.isString(config.template)) {\n                            config.files.push(config.template);\n                        } else if (angular.isArray(config.template)) {\n                            config.files.concat(config.template);\n                        }\n                    }\n                }\n\n                var localParams = angular.extend({}, params, config);\n\n                // if someone used an external loader and called the load function with just the module name\n                if (angular.isUndefined(config.files) && angular.isDefined(config.name) && $delegate.moduleExists(config.name)) {\n                    return $delegate.inject(config.name, localParams, true);\n                }\n\n                $delegate.filesLoader(config, localParams).then(function () {\n                    $delegate.inject(null, localParams).then(function (res) {\n                        deferred.resolve(res);\n                    }, function (err) {\n                        deferred.reject(err);\n                    });\n                }, function (err) {\n                    deferred.reject(err);\n                });\n\n                return deferred.promise;\n            };\n\n            // return the patched service\n            return $delegate;\n        }]);\n    }]);\n})(angular);\n(function (angular) {\n    'use strict';\n\n    angular.module('oc.lazyLoad').config([\"$provide\", function ($provide) {\n        $provide.decorator('$ocLazyLoad', [\"$delegate\", \"$q\", function ($delegate, $q) {\n            /**\r\n             * cssLoader function\r\n             * @type Function\r\n             * @param paths array list of css files to load\r\n             * @param callback to call when everything is loaded. We use a callback and not a promise\r\n             * @param params object config parameters\r\n             * because the user can overwrite cssLoader and it will probably not use promises :(\r\n             */\n            $delegate.cssLoader = function (paths, callback, params) {\n                var promises = [];\n                angular.forEach(paths, function (path) {\n                    promises.push($delegate.buildElement('css', path, params));\n                });\n                $q.all(promises).then(function () {\n                    callback();\n                }, function (err) {\n                    callback(err);\n                });\n            };\n            $delegate.cssLoader.ocLazyLoadLoader = true;\n\n            return $delegate;\n        }]);\n    }]);\n})(angular);\n(function (angular) {\n    'use strict';\n\n    angular.module('oc.lazyLoad').config([\"$provide\", function ($provide) {\n        $provide.decorator('$ocLazyLoad', [\"$delegate\", \"$q\", function ($delegate, $q) {\n            /**\r\n             * jsLoader function\r\n             * @type Function\r\n             * @param paths array list of js files to load\r\n             * @param callback to call when everything is loaded. We use a callback and not a promise\r\n             * @param params object config parameters\r\n             * because the user can overwrite jsLoader and it will probably not use promises :(\r\n             */\n            $delegate.jsLoader = function (paths, callback, params) {\n                var promises = [];\n                angular.forEach(paths, function (path) {\n                    promises.push($delegate.buildElement('js', path, params));\n                });\n                $q.all(promises).then(function () {\n                    callback();\n                }, function (err) {\n                    callback(err);\n                });\n            };\n            $delegate.jsLoader.ocLazyLoadLoader = true;\n\n            return $delegate;\n        }]);\n    }]);\n})(angular);\n(function (angular) {\n    'use strict';\n\n    angular.module('oc.lazyLoad').config([\"$provide\", function ($provide) {\n        $provide.decorator('$ocLazyLoad', [\"$delegate\", \"$templateCache\", \"$q\", \"$http\", function ($delegate, $templateCache, $q, $http) {\n            /**\r\n             * templatesLoader function\r\n             * @type Function\r\n             * @param paths array list of css files to load\r\n             * @param callback to call when everything is loaded. We use a callback and not a promise\r\n             * @param params object config parameters for $http\r\n             * because the user can overwrite templatesLoader and it will probably not use promises :(\r\n             */\n            $delegate.templatesLoader = function (paths, callback, params) {\n                var promises = [],\n                    filesCache = $delegate._getFilesCache();\n\n                angular.forEach(paths, function (url) {\n                    var deferred = $q.defer();\n                    promises.push(deferred.promise);\n                    $http.get(url, params).then(function (response) {\n                        var data = response.data;\n                        if (angular.isString(data) && data.length > 0) {\n                            angular.forEach(angular.element(data), function (node) {\n                                if (node.nodeName === 'SCRIPT' && node.type === 'text/ng-template') {\n                                    $templateCache.put(node.id, node.innerHTML);\n                                }\n                            });\n                        }\n                        if (angular.isUndefined(filesCache.get(url))) {\n                            filesCache.put(url, true);\n                        }\n                        deferred.resolve();\n                    })['catch'](function (response) {\n                        deferred.reject(new Error('Unable to load template file \"' + url + '\": ' + response.data));\n                    });\n                });\n                return $q.all(promises).then(function () {\n                    callback();\n                }, function (err) {\n                    callback(err);\n                });\n            };\n            $delegate.templatesLoader.ocLazyLoadLoader = true;\n\n            return $delegate;\n        }]);\n    }]);\n})(angular);\n// Array.indexOf polyfill for IE8\nif (!Array.prototype.indexOf) {\n        Array.prototype.indexOf = function (searchElement, fromIndex) {\n                var k;\n\n                // 1. Let O be the result of calling ToObject passing\n                //    the this value as the argument.\n                if (this == null) {\n                        throw new TypeError('\"this\" is null or not defined');\n                }\n\n                var O = Object(this);\n\n                // 2. Let lenValue be the result of calling the Get\n                //    internal method of O with the argument \"length\".\n                // 3. Let len be ToUint32(lenValue).\n                var len = O.length >>> 0;\n\n                // 4. If len is 0, return -1.\n                if (len === 0) {\n                        return -1;\n                }\n\n                // 5. If argument fromIndex was passed let n be\n                //    ToInteger(fromIndex); else let n be 0.\n                var n = +fromIndex || 0;\n\n                if (Math.abs(n) === Infinity) {\n                        n = 0;\n                }\n\n                // 6. If n >= len, return -1.\n                if (n >= len) {\n                        return -1;\n                }\n\n                // 7. If n >= 0, then Let k be n.\n                // 8. Else, n<0, Let k be len - abs(n).\n                //    If k is less than 0, then let k be 0.\n                k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);\n\n                // 9. Repeat, while k < len\n                while (k < len) {\n                        // a. Let Pk be ToString(k).\n                        //   This is implicit for LHS operands of the in operator\n                        // b. Let kPresent be the result of calling the\n                        //    HasProperty internal method of O with argument Pk.\n                        //   This step can be combined with c\n                        // c. If kPresent is true, then\n                        //    i.  Let elementK be the result of calling the Get\n                        //        internal method of O with the argument ToString(k).\n                        //   ii.  Let same be the result of applying the\n                        //        Strict Equality Comparison Algorithm to\n                        //        searchElement and elementK.\n                        //  iii.  If same is true, return k.\n                        if (k in O && O[k] === searchElement) {\n                                return k;\n                        }\n                        k++;\n                }\n                return -1;\n        };\n}","import { Subject } from './Subject';\nexport class BehaviorSubject extends Subject {\n    constructor(_value) {\n        super();\n        this._value = _value;\n    }\n    get value() {\n        return this.getValue();\n    }\n    _subscribe(subscriber) {\n        const subscription = super._subscribe(subscriber);\n        !subscription.closed && subscriber.next(this._value);\n        return subscription;\n    }\n    getValue() {\n        const { hasError, thrownError, _value } = this;\n        if (hasError) {\n            throw thrownError;\n        }\n        this._throwIfClosed();\n        return _value;\n    }\n    next(value) {\n        super.next((this._value = value));\n    }\n}\n","import { SafeSubscriber, Subscriber } from './Subscriber';\nimport { isSubscription } from './Subscription';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nimport { isFunction } from './util/isFunction';\nimport { errorContext } from './util/errorContext';\nexport class Observable {\n    constructor(subscribe) {\n        if (subscribe) {\n            this._subscribe = subscribe;\n        }\n    }\n    lift(operator) {\n        const observable = new Observable();\n        observable.source = this;\n        observable.operator = operator;\n        return observable;\n    }\n    subscribe(observerOrNext, error, complete) {\n        const subscriber = isSubscriber(observerOrNext) ? observerOrNext : new SafeSubscriber(observerOrNext, error, complete);\n        errorContext(() => {\n            const { operator, source } = this;\n            subscriber.add(operator\n                ?\n                    operator.call(subscriber, source)\n                : source\n                    ?\n                        this._subscribe(subscriber)\n                    :\n                        this._trySubscribe(subscriber));\n        });\n        return subscriber;\n    }\n    _trySubscribe(sink) {\n        try {\n            return this._subscribe(sink);\n        }\n        catch (err) {\n            sink.error(err);\n        }\n    }\n    forEach(next, promiseCtor) {\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor((resolve, reject) => {\n            let subscription;\n            subscription = this.subscribe((value) => {\n                try {\n                    next(value);\n                }\n                catch (err) {\n                    reject(err);\n                    subscription === null || subscription === void 0 ? void 0 : subscription.unsubscribe();\n                }\n            }, reject, resolve);\n        });\n    }\n    _subscribe(subscriber) {\n        var _a;\n        return (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber);\n    }\n    [Symbol_observable]() {\n        return this;\n    }\n    pipe(...operations) {\n        return pipeFromArray(operations)(this);\n    }\n    toPromise(promiseCtor) {\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor((resolve, reject) => {\n            let value;\n            this.subscribe((x) => (value = x), (err) => reject(err), () => resolve(value));\n        });\n    }\n}\nObservable.create = (subscribe) => {\n    return new Observable(subscribe);\n};\nfunction getPromiseCtor(promiseCtor) {\n    var _a;\n    return (_a = promiseCtor !== null && promiseCtor !== void 0 ? promiseCtor : config.Promise) !== null && _a !== void 0 ? _a : Promise;\n}\nfunction isObserver(value) {\n    return value && isFunction(value.next) && isFunction(value.error) && isFunction(value.complete);\n}\nfunction isSubscriber(value) {\n    return (value && value instanceof Subscriber) || (isObserver(value) && isSubscription(value));\n}\n","import { createErrorClass } from './createErrorClass';\nexport const ObjectUnsubscribedError = createErrorClass((_super) => function ObjectUnsubscribedErrorImpl() {\n    _super(this);\n    this.name = 'ObjectUnsubscribedError';\n    this.message = 'object unsubscribed';\n});\n","import { Observable } from './Observable';\nimport { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { arrRemove } from './util/arrRemove';\nimport { errorContext } from './util/errorContext';\nexport class Subject extends Observable {\n    constructor() {\n        super();\n        this.closed = false;\n        this.observers = [];\n        this.isStopped = false;\n        this.hasError = false;\n        this.thrownError = null;\n    }\n    lift(operator) {\n        const subject = new AnonymousSubject(this, this);\n        subject.operator = operator;\n        return subject;\n    }\n    _throwIfClosed() {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n    }\n    next(value) {\n        errorContext(() => {\n            this._throwIfClosed();\n            if (!this.isStopped) {\n                const copy = this.observers.slice();\n                for (const observer of copy) {\n                    observer.next(value);\n                }\n            }\n        });\n    }\n    error(err) {\n        errorContext(() => {\n            this._throwIfClosed();\n            if (!this.isStopped) {\n                this.hasError = this.isStopped = true;\n                this.thrownError = err;\n                const { observers } = this;\n                while (observers.length) {\n                    observers.shift().error(err);\n                }\n            }\n        });\n    }\n    complete() {\n        errorContext(() => {\n            this._throwIfClosed();\n            if (!this.isStopped) {\n                this.isStopped = true;\n                const { observers } = this;\n                while (observers.length) {\n                    observers.shift().complete();\n                }\n            }\n        });\n    }\n    unsubscribe() {\n        this.isStopped = this.closed = true;\n        this.observers = null;\n    }\n    get observed() {\n        var _a;\n        return ((_a = this.observers) === null || _a === void 0 ? void 0 : _a.length) > 0;\n    }\n    _trySubscribe(subscriber) {\n        this._throwIfClosed();\n        return super._trySubscribe(subscriber);\n    }\n    _subscribe(subscriber) {\n        this._throwIfClosed();\n        this._checkFinalizedStatuses(subscriber);\n        return this._innerSubscribe(subscriber);\n    }\n    _innerSubscribe(subscriber) {\n        const { hasError, isStopped, observers } = this;\n        return hasError || isStopped\n            ? EMPTY_SUBSCRIPTION\n            : (observers.push(subscriber), new Subscription(() => arrRemove(observers, subscriber)));\n    }\n    _checkFinalizedStatuses(subscriber) {\n        const { hasError, thrownError, isStopped } = this;\n        if (hasError) {\n            subscriber.error(thrownError);\n        }\n        else if (isStopped) {\n            subscriber.complete();\n        }\n    }\n    asObservable() {\n        const observable = new Observable();\n        observable.source = this;\n        return observable;\n    }\n}\nSubject.create = (destination, source) => {\n    return new AnonymousSubject(destination, source);\n};\nexport class AnonymousSubject extends Subject {\n    constructor(destination, source) {\n        super();\n        this.destination = destination;\n        this.source = source;\n    }\n    next(value) {\n        var _a, _b;\n        (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.next) === null || _b === void 0 ? void 0 : _b.call(_a, value);\n    }\n    error(err) {\n        var _a, _b;\n        (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.error) === null || _b === void 0 ? void 0 : _b.call(_a, err);\n    }\n    complete() {\n        var _a, _b;\n        (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.complete) === null || _b === void 0 ? void 0 : _b.call(_a);\n    }\n    _subscribe(subscriber) {\n        var _a, _b;\n        return (_b = (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber)) !== null && _b !== void 0 ? _b : EMPTY_SUBSCRIPTION;\n    }\n}\n","export const COMPLETE_NOTIFICATION = (() => createNotification('C', undefined, undefined))();\nexport function errorNotification(error) {\n    return createNotification('E', undefined, error);\n}\nexport function nextNotification(value) {\n    return createNotification('N', value, undefined);\n}\nexport function createNotification(kind, value, error) {\n    return {\n        kind,\n        value,\n        error,\n    };\n}\n","import { isFunction } from './util/isFunction';\nimport { isSubscription, Subscription } from './Subscription';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nimport { noop } from './util/noop';\nimport { nextNotification, errorNotification, COMPLETE_NOTIFICATION } from './NotificationFactories';\nimport { timeoutProvider } from './scheduler/timeoutProvider';\nimport { captureError } from './util/errorContext';\nexport class Subscriber extends Subscription {\n    constructor(destination) {\n        super();\n        this.isStopped = false;\n        if (destination) {\n            this.destination = destination;\n            if (isSubscription(destination)) {\n                destination.add(this);\n            }\n        }\n        else {\n            this.destination = EMPTY_OBSERVER;\n        }\n    }\n    static create(next, error, complete) {\n        return new SafeSubscriber(next, error, complete);\n    }\n    next(value) {\n        if (this.isStopped) {\n            handleStoppedNotification(nextNotification(value), this);\n        }\n        else {\n            this._next(value);\n        }\n    }\n    error(err) {\n        if (this.isStopped) {\n            handleStoppedNotification(errorNotification(err), this);\n        }\n        else {\n            this.isStopped = true;\n            this._error(err);\n        }\n    }\n    complete() {\n        if (this.isStopped) {\n            handleStoppedNotification(COMPLETE_NOTIFICATION, this);\n        }\n        else {\n            this.isStopped = true;\n            this._complete();\n        }\n    }\n    unsubscribe() {\n        if (!this.closed) {\n            this.isStopped = true;\n            super.unsubscribe();\n            this.destination = null;\n        }\n    }\n    _next(value) {\n        this.destination.next(value);\n    }\n    _error(err) {\n        try {\n            this.destination.error(err);\n        }\n        finally {\n            this.unsubscribe();\n        }\n    }\n    _complete() {\n        try {\n            this.destination.complete();\n        }\n        finally {\n            this.unsubscribe();\n        }\n    }\n}\nexport class SafeSubscriber extends Subscriber {\n    constructor(observerOrNext, error, complete) {\n        super();\n        let next;\n        if (isFunction(observerOrNext)) {\n            next = observerOrNext;\n        }\n        else if (observerOrNext) {\n            ({ next, error, complete } = observerOrNext);\n            let context;\n            if (this && config.useDeprecatedNextContext) {\n                context = Object.create(observerOrNext);\n                context.unsubscribe = () => this.unsubscribe();\n            }\n            else {\n                context = observerOrNext;\n            }\n            next = next === null || next === void 0 ? void 0 : next.bind(context);\n            error = error === null || error === void 0 ? void 0 : error.bind(context);\n            complete = complete === null || complete === void 0 ? void 0 : complete.bind(context);\n        }\n        this.destination = {\n            next: next ? wrapForErrorHandling(next, this) : noop,\n            error: wrapForErrorHandling(error !== null && error !== void 0 ? error : defaultErrorHandler, this),\n            complete: complete ? wrapForErrorHandling(complete, this) : noop,\n        };\n    }\n}\nfunction wrapForErrorHandling(handler, instance) {\n    return (...args) => {\n        try {\n            handler(...args);\n        }\n        catch (err) {\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                captureError(err);\n            }\n            else {\n                reportUnhandledError(err);\n            }\n        }\n    };\n}\nfunction defaultErrorHandler(err) {\n    throw err;\n}\nfunction handleStoppedNotification(notification, subscriber) {\n    const { onStoppedNotification } = config;\n    onStoppedNotification && timeoutProvider.setTimeout(() => onStoppedNotification(notification, subscriber));\n}\nexport const EMPTY_OBSERVER = {\n    closed: true,\n    next: noop,\n    error: defaultErrorHandler,\n    complete: noop,\n};\n","import { createErrorClass } from './createErrorClass';\nexport const UnsubscriptionError = createErrorClass((_super) => function UnsubscriptionErrorImpl(errors) {\n    _super(this);\n    this.message = errors\n        ? `${errors.length} errors occurred during unsubscription:\n${errors.map((err, i) => `${i + 1}) ${err.toString()}`).join('\\n  ')}`\n        : '';\n    this.name = 'UnsubscriptionError';\n    this.errors = errors;\n});\n","import { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nimport { arrRemove } from './util/arrRemove';\nexport class Subscription {\n    constructor(initialTeardown) {\n        this.initialTeardown = initialTeardown;\n        this.closed = false;\n        this._parentage = null;\n        this._teardowns = null;\n    }\n    unsubscribe() {\n        let errors;\n        if (!this.closed) {\n            this.closed = true;\n            const { _parentage } = this;\n            if (_parentage) {\n                this._parentage = null;\n                if (Array.isArray(_parentage)) {\n                    for (const parent of _parentage) {\n                        parent.remove(this);\n                    }\n                }\n                else {\n                    _parentage.remove(this);\n                }\n            }\n            const { initialTeardown } = this;\n            if (isFunction(initialTeardown)) {\n                try {\n                    initialTeardown();\n                }\n                catch (e) {\n                    errors = e instanceof UnsubscriptionError ? e.errors : [e];\n                }\n            }\n            const { _teardowns } = this;\n            if (_teardowns) {\n                this._teardowns = null;\n                for (const teardown of _teardowns) {\n                    try {\n                        execTeardown(teardown);\n                    }\n                    catch (err) {\n                        errors = errors !== null && errors !== void 0 ? errors : [];\n                        if (err instanceof UnsubscriptionError) {\n                            errors = [...errors, ...err.errors];\n                        }\n                        else {\n                            errors.push(err);\n                        }\n                    }\n                }\n            }\n            if (errors) {\n                throw new UnsubscriptionError(errors);\n            }\n        }\n    }\n    add(teardown) {\n        var _a;\n        if (teardown && teardown !== this) {\n            if (this.closed) {\n                execTeardown(teardown);\n            }\n            else {\n                if (teardown instanceof Subscription) {\n                    if (teardown.closed || teardown._hasParent(this)) {\n                        return;\n                    }\n                    teardown._addParent(this);\n                }\n                (this._teardowns = (_a = this._teardowns) !== null && _a !== void 0 ? _a : []).push(teardown);\n            }\n        }\n    }\n    _hasParent(parent) {\n        const { _parentage } = this;\n        return _parentage === parent || (Array.isArray(_parentage) && _parentage.includes(parent));\n    }\n    _addParent(parent) {\n        const { _parentage } = this;\n        this._parentage = Array.isArray(_parentage) ? (_parentage.push(parent), _parentage) : _parentage ? [_parentage, parent] : parent;\n    }\n    _removeParent(parent) {\n        const { _parentage } = this;\n        if (_parentage === parent) {\n            this._parentage = null;\n        }\n        else if (Array.isArray(_parentage)) {\n            arrRemove(_parentage, parent);\n        }\n    }\n    remove(teardown) {\n        const { _teardowns } = this;\n        _teardowns && arrRemove(_teardowns, teardown);\n        if (teardown instanceof Subscription) {\n            teardown._removeParent(this);\n        }\n    }\n}\nSubscription.EMPTY = (() => {\n    const empty = new Subscription();\n    empty.closed = true;\n    return empty;\n})();\nexport const EMPTY_SUBSCRIPTION = Subscription.EMPTY;\nexport function isSubscription(value) {\n    return (value instanceof Subscription ||\n        (value && 'closed' in value && isFunction(value.remove) && isFunction(value.add) && isFunction(value.unsubscribe)));\n}\nfunction execTeardown(teardown) {\n    if (isFunction(teardown)) {\n        teardown();\n    }\n    else {\n        teardown.unsubscribe();\n    }\n}\n","export const config = {\n    onUnhandledError: null,\n    onStoppedNotification: null,\n    Promise: undefined,\n    useDeprecatedSynchronousErrorHandling: false,\n    useDeprecatedNextContext: false,\n};\n","import { Observable } from '../Observable';\nexport const EMPTY = new Observable((subscriber) => subscriber.complete());\nexport function empty(scheduler) {\n    return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n    return new Observable((subscriber) => scheduler.schedule(() => subscriber.complete()));\n}\n","import { executeSchedule } from '../util/executeSchedule';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function observeOn(scheduler, delay = 0) {\n    return operate((source, subscriber) => {\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => executeSchedule(subscriber, scheduler, () => subscriber.next(value), delay), () => executeSchedule(subscriber, scheduler, () => subscriber.complete(), delay), (err) => executeSchedule(subscriber, scheduler, () => subscriber.error(err), delay)));\n    });\n}\n","import { operate } from '../util/lift';\nexport function subscribeOn(scheduler, delay = 0) {\n    return operate((source, subscriber) => {\n        subscriber.add(scheduler.schedule(() => source.subscribe(subscriber), delay));\n    });\n}\n","import { Observable } from '../Observable';\nimport { executeSchedule } from '../util/executeSchedule';\nexport function scheduleAsyncIterable(input, scheduler) {\n    if (!input) {\n        throw new Error('Iterable cannot be null');\n    }\n    return new Observable((subscriber) => {\n        executeSchedule(subscriber, scheduler, () => {\n            const iterator = input[Symbol.asyncIterator]();\n            executeSchedule(subscriber, scheduler, () => {\n                iterator.next().then((result) => {\n                    if (result.done) {\n                        subscriber.complete();\n                    }\n                    else {\n                        subscriber.next(result.value);\n                    }\n                });\n            }, 0, true);\n        });\n    });\n}\n","import { scheduled } from '../scheduled/scheduled';\nimport { innerFrom } from './innerFrom';\nexport function from(input, scheduler) {\n    return scheduler ? scheduled(input, scheduler) : innerFrom(input);\n}\n","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { scheduleAsyncIterable } from './scheduleAsyncIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nimport { isAsyncIterable } from '../util/isAsyncIterable';\nimport { createInvalidObservableTypeError } from '../util/throwUnobservableError';\nimport { isReadableStreamLike } from '../util/isReadableStreamLike';\nimport { scheduleReadableStreamLike } from './scheduleReadableStreamLike';\nexport function scheduled(input, scheduler) {\n    if (input != null) {\n        if (isInteropObservable(input)) {\n            return scheduleObservable(input, scheduler);\n        }\n        if (isArrayLike(input)) {\n            return scheduleArray(input, scheduler);\n        }\n        if (isPromise(input)) {\n            return schedulePromise(input, scheduler);\n        }\n        if (isAsyncIterable(input)) {\n            return scheduleAsyncIterable(input, scheduler);\n        }\n        if (isIterable(input)) {\n            return scheduleIterable(input, scheduler);\n        }\n        if (isReadableStreamLike(input)) {\n            return scheduleReadableStreamLike(input, scheduler);\n        }\n    }\n    throw createInvalidObservableTypeError(input);\n}\n","import { innerFrom } from '../observable/innerFrom';\nimport { observeOn } from '../operators/observeOn';\nimport { subscribeOn } from '../operators/subscribeOn';\nexport function scheduleObservable(input, scheduler) {\n    return innerFrom(input).pipe(subscribeOn(scheduler), observeOn(scheduler));\n}\n","import { Observable } from '../Observable';\nexport function scheduleArray(input, scheduler) {\n    return new Observable((subscriber) => {\n        let i = 0;\n        return scheduler.schedule(function () {\n            if (i === input.length) {\n                subscriber.complete();\n            }\n            else {\n                subscriber.next(input[i++]);\n                if (!subscriber.closed) {\n                    this.schedule();\n                }\n            }\n        });\n    });\n}\n","import { innerFrom } from '../observable/innerFrom';\nimport { observeOn } from '../operators/observeOn';\nimport { subscribeOn } from '../operators/subscribeOn';\nexport function schedulePromise(input, scheduler) {\n    return innerFrom(input).pipe(subscribeOn(scheduler), observeOn(scheduler));\n}\n","import { Observable } from '../Observable';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { isFunction } from '../util/isFunction';\nimport { executeSchedule } from '../util/executeSchedule';\nexport function scheduleIterable(input, scheduler) {\n    return new Observable((subscriber) => {\n        let iterator;\n        executeSchedule(subscriber, scheduler, () => {\n            iterator = input[Symbol_iterator]();\n            executeSchedule(subscriber, scheduler, () => {\n                let value;\n                let done;\n                try {\n                    ({ value, done } = iterator.next());\n                }\n                catch (err) {\n                    subscriber.error(err);\n                    return;\n                }\n                if (done) {\n                    subscriber.complete();\n                }\n                else {\n                    subscriber.next(value);\n                }\n            }, 0, true);\n        });\n        return () => isFunction(iterator === null || iterator === void 0 ? void 0 : iterator.return) && iterator.return();\n    });\n}\n","import { scheduleAsyncIterable } from './scheduleAsyncIterable';\nimport { readableStreamLikeToAsyncGenerator } from '../util/isReadableStreamLike';\nexport function scheduleReadableStreamLike(input, scheduler) {\n    return scheduleAsyncIterable(readableStreamLikeToAsyncGenerator(input), scheduler);\n}\n","import { __asyncValues, __awaiter } from \"tslib\";\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isPromise } from '../util/isPromise';\nimport { Observable } from '../Observable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isAsyncIterable } from '../util/isAsyncIterable';\nimport { createInvalidObservableTypeError } from '../util/throwUnobservableError';\nimport { isIterable } from '../util/isIterable';\nimport { isReadableStreamLike, readableStreamLikeToAsyncGenerator } from '../util/isReadableStreamLike';\nimport { isFunction } from '../util/isFunction';\nimport { reportUnhandledError } from '../util/reportUnhandledError';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function innerFrom(input) {\n    if (input instanceof Observable) {\n        return input;\n    }\n    if (input != null) {\n        if (isInteropObservable(input)) {\n            return fromInteropObservable(input);\n        }\n        if (isArrayLike(input)) {\n            return fromArrayLike(input);\n        }\n        if (isPromise(input)) {\n            return fromPromise(input);\n        }\n        if (isAsyncIterable(input)) {\n            return fromAsyncIterable(input);\n        }\n        if (isIterable(input)) {\n            return fromIterable(input);\n        }\n        if (isReadableStreamLike(input)) {\n            return fromReadableStreamLike(input);\n        }\n    }\n    throw createInvalidObservableTypeError(input);\n}\nexport function fromInteropObservable(obj) {\n    return new Observable((subscriber) => {\n        const obs = obj[Symbol_observable]();\n        if (isFunction(obs.subscribe)) {\n            return obs.subscribe(subscriber);\n        }\n        throw new TypeError('Provided object does not correctly implement Symbol.observable');\n    });\n}\nexport function fromArrayLike(array) {\n    return new Observable((subscriber) => {\n        for (let i = 0; i < array.length && !subscriber.closed; i++) {\n            subscriber.next(array[i]);\n        }\n        subscriber.complete();\n    });\n}\nexport function fromPromise(promise) {\n    return new Observable((subscriber) => {\n        promise\n            .then((value) => {\n            if (!subscriber.closed) {\n                subscriber.next(value);\n                subscriber.complete();\n            }\n        }, (err) => subscriber.error(err))\n            .then(null, reportUnhandledError);\n    });\n}\nexport function fromIterable(iterable) {\n    return new Observable((subscriber) => {\n        for (const value of iterable) {\n            subscriber.next(value);\n            if (subscriber.closed) {\n                return;\n            }\n        }\n        subscriber.complete();\n    });\n}\nexport function fromAsyncIterable(asyncIterable) {\n    return new Observable((subscriber) => {\n        process(asyncIterable, subscriber).catch((err) => subscriber.error(err));\n    });\n}\nexport function fromReadableStreamLike(readableStream) {\n    return fromAsyncIterable(readableStreamLikeToAsyncGenerator(readableStream));\n}\nfunction process(asyncIterable, subscriber) {\n    var asyncIterable_1, asyncIterable_1_1;\n    var e_1, _a;\n    return __awaiter(this, void 0, void 0, function* () {\n        try {\n            for (asyncIterable_1 = __asyncValues(asyncIterable); asyncIterable_1_1 = yield asyncIterable_1.next(), !asyncIterable_1_1.done;) {\n                const value = asyncIterable_1_1.value;\n                subscriber.next(value);\n                if (subscriber.closed) {\n                    return;\n                }\n            }\n        }\n        catch (e_1_1) { e_1 = { error: e_1_1 }; }\n        finally {\n            try {\n                if (asyncIterable_1_1 && !asyncIterable_1_1.done && (_a = asyncIterable_1.return)) yield _a.call(asyncIterable_1);\n            }\n            finally { if (e_1) throw e_1.error; }\n        }\n        subscriber.complete();\n    });\n}\n","import { popScheduler } from '../util/args';\nimport { from } from './from';\nexport function of(...args) {\n    const scheduler = popScheduler(args);\n    return from(args, scheduler);\n}\n","import { Subscriber } from '../Subscriber';\nexport class OperatorSubscriber extends Subscriber {\n    constructor(destination, onNext, onComplete, onError, onFinalize) {\n        super(destination);\n        this.onFinalize = onFinalize;\n        this._next = onNext\n            ? function (value) {\n                try {\n                    onNext(value);\n                }\n                catch (err) {\n                    destination.error(err);\n                }\n            }\n            : super._next;\n        this._error = onError\n            ? function (err) {\n                try {\n                    onError(err);\n                }\n                catch (err) {\n                    destination.error(err);\n                }\n                finally {\n                    this.unsubscribe();\n                }\n            }\n            : super._error;\n        this._complete = onComplete\n            ? function () {\n                try {\n                    onComplete();\n                }\n                catch (err) {\n                    destination.error(err);\n                }\n                finally {\n                    this.unsubscribe();\n                }\n            }\n            : super._complete;\n    }\n    unsubscribe() {\n        var _a;\n        const { closed } = this;\n        super.unsubscribe();\n        !closed && ((_a = this.onFinalize) === null || _a === void 0 ? void 0 : _a.call(this));\n    }\n}\n","import { innerFrom } from '../observable/innerFrom';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { operate } from '../util/lift';\nexport function catchError(selector) {\n    return operate((source, subscriber) => {\n        let innerSub = null;\n        let syncUnsub = false;\n        let handledResult;\n        innerSub = source.subscribe(new OperatorSubscriber(subscriber, undefined, undefined, (err) => {\n            handledResult = innerFrom(selector(err, catchError(selector)(source)));\n            if (innerSub) {\n                innerSub.unsubscribe();\n                innerSub = null;\n                handledResult.subscribe(subscriber);\n            }\n            else {\n                syncUnsub = true;\n            }\n        }));\n        if (syncUnsub) {\n            innerSub.unsubscribe();\n            innerSub = null;\n            handledResult.subscribe(subscriber);\n        }\n    });\n}\n","import { mergeMap } from './mergeMap';\nimport { isFunction } from '../util/isFunction';\nexport function concatMap(project, resultSelector) {\n    return isFunction(resultSelector) ? mergeMap(project, resultSelector, 1) : mergeMap(project, 1);\n}\n","import { identity } from '../util/identity';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function distinctUntilChanged(comparator, keySelector = identity) {\n    comparator = comparator !== null && comparator !== void 0 ? comparator : defaultCompare;\n    return operate((source, subscriber) => {\n        let previousKey;\n        let first = true;\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            const currentKey = keySelector(value);\n            if (first || !comparator(previousKey, currentKey)) {\n                first = false;\n                previousKey = currentKey;\n                subscriber.next(value);\n            }\n        }));\n    });\n}\nfunction defaultCompare(a, b) {\n    return a === b;\n}\n","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function filter(predicate, thisArg) {\n    return operate((source, subscriber) => {\n        let index = 0;\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => predicate.call(thisArg, value, index++) && subscriber.next(value)));\n    });\n}\n","import { operate } from '../util/lift';\nexport function finalize(callback) {\n    return operate((source, subscriber) => {\n        try {\n            source.subscribe(subscriber);\n        }\n        finally {\n            subscriber.add(callback);\n        }\n    });\n}\n","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function map(project, thisArg) {\n    return operate((source, subscriber) => {\n        let index = 0;\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            subscriber.next(project.call(thisArg, value, index++));\n        }));\n    });\n}\n","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent = Infinity) {\n    return mergeMap(identity, concurrent);\n}\n","import { map } from './map';\nimport { innerFrom } from '../observable/innerFrom';\nimport { operate } from '../util/lift';\nimport { mergeInternals } from './mergeInternals';\nimport { isFunction } from '../util/isFunction';\nexport function mergeMap(project, resultSelector, concurrent = Infinity) {\n    if (isFunction(resultSelector)) {\n        return mergeMap((a, i) => map((b, ii) => resultSelector(a, b, i, ii))(innerFrom(project(a, i))), concurrent);\n    }\n    else if (typeof resultSelector === 'number') {\n        concurrent = resultSelector;\n    }\n    return operate((source, subscriber) => mergeInternals(source, subscriber, project, concurrent));\n}\n","import { innerFrom } from '../observable/innerFrom';\nimport { executeSchedule } from '../util/executeSchedule';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function mergeInternals(source, subscriber, project, concurrent, onBeforeNext, expand, innerSubScheduler, additionalTeardown) {\n    const buffer = [];\n    let active = 0;\n    let index = 0;\n    let isComplete = false;\n    const checkComplete = () => {\n        if (isComplete && !buffer.length && !active) {\n            subscriber.complete();\n        }\n    };\n    const outerNext = (value) => (active < concurrent ? doInnerSub(value) : buffer.push(value));\n    const doInnerSub = (value) => {\n        expand && subscriber.next(value);\n        active++;\n        let innerComplete = false;\n        innerFrom(project(value, index++)).subscribe(new OperatorSubscriber(subscriber, (innerValue) => {\n            onBeforeNext === null || onBeforeNext === void 0 ? void 0 : onBeforeNext(innerValue);\n            if (expand) {\n                outerNext(innerValue);\n            }\n            else {\n                subscriber.next(innerValue);\n            }\n        }, () => {\n            innerComplete = true;\n        }, undefined, () => {\n            if (innerComplete) {\n                try {\n                    active--;\n                    while (buffer.length && active < concurrent) {\n                        const bufferedValue = buffer.shift();\n                        if (innerSubScheduler) {\n                            executeSchedule(subscriber, innerSubScheduler, () => doInnerSub(bufferedValue));\n                        }\n                        else {\n                            doInnerSub(bufferedValue);\n                        }\n                    }\n                    checkComplete();\n                }\n                catch (err) {\n                    subscriber.error(err);\n                }\n            }\n        }));\n    };\n    source.subscribe(new OperatorSubscriber(subscriber, outerNext, () => {\n        isComplete = true;\n        checkComplete();\n    }));\n    return () => {\n        additionalTeardown === null || additionalTeardown === void 0 ? void 0 : additionalTeardown();\n    };\n}\n","import { from } from '../observable/from';\nimport { take } from '../operators/take';\nimport { Subject } from '../Subject';\nimport { SafeSubscriber } from '../Subscriber';\nimport { operate } from '../util/lift';\nexport function share(options = {}) {\n    const { connector = () => new Subject(), resetOnError = true, resetOnComplete = true, resetOnRefCountZero = true } = options;\n    return (wrapperSource) => {\n        let connection = null;\n        let resetConnection = null;\n        let subject = null;\n        let refCount = 0;\n        let hasCompleted = false;\n        let hasErrored = false;\n        const cancelReset = () => {\n            resetConnection === null || resetConnection === void 0 ? void 0 : resetConnection.unsubscribe();\n            resetConnection = null;\n        };\n        const reset = () => {\n            cancelReset();\n            connection = subject = null;\n            hasCompleted = hasErrored = false;\n        };\n        const resetAndUnsubscribe = () => {\n            const conn = connection;\n            reset();\n            conn === null || conn === void 0 ? void 0 : conn.unsubscribe();\n        };\n        return operate((source, subscriber) => {\n            refCount++;\n            if (!hasErrored && !hasCompleted) {\n                cancelReset();\n            }\n            const dest = (subject = subject !== null && subject !== void 0 ? subject : connector());\n            subscriber.add(() => {\n                refCount--;\n                if (refCount === 0 && !hasErrored && !hasCompleted) {\n                    resetConnection = handleReset(resetAndUnsubscribe, resetOnRefCountZero);\n                }\n            });\n            dest.subscribe(subscriber);\n            if (!connection) {\n                connection = new SafeSubscriber({\n                    next: (value) => dest.next(value),\n                    error: (err) => {\n                        hasErrored = true;\n                        cancelReset();\n                        resetConnection = handleReset(reset, resetOnError, err);\n                        dest.error(err);\n                    },\n                    complete: () => {\n                        hasCompleted = true;\n                        cancelReset();\n                        resetConnection = handleReset(reset, resetOnComplete);\n                        dest.complete();\n                    },\n                });\n                from(source).subscribe(connection);\n            }\n        })(wrapperSource);\n    };\n}\nfunction handleReset(reset, on, ...args) {\n    if (on === true) {\n        reset();\n        return null;\n    }\n    if (on === false) {\n        return null;\n    }\n    return on(...args)\n        .pipe(take(1))\n        .subscribe(() => reset());\n}\n","import { innerFrom } from '../observable/innerFrom';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function switchMap(project, resultSelector) {\n    return operate((source, subscriber) => {\n        let innerSubscriber = null;\n        let index = 0;\n        let isComplete = false;\n        const checkComplete = () => isComplete && !innerSubscriber && subscriber.complete();\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            innerSubscriber === null || innerSubscriber === void 0 ? void 0 : innerSubscriber.unsubscribe();\n            let innerIndex = 0;\n            const outerIndex = index++;\n            innerFrom(project(value, outerIndex)).subscribe((innerSubscriber = new OperatorSubscriber(subscriber, (innerValue) => subscriber.next(resultSelector ? resultSelector(value, innerValue, outerIndex, innerIndex++) : innerValue), () => {\n                innerSubscriber = null;\n                checkComplete();\n            })));\n        }, () => {\n            isComplete = true;\n            checkComplete();\n        }));\n    });\n}\n","import { EMPTY } from '../observable/empty';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function take(count) {\n    return count <= 0\n        ?\n            () => EMPTY\n        : operate((source, subscriber) => {\n            let seen = 0;\n            source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n                if (++seen <= count) {\n                    subscriber.next(value);\n                    if (count <= seen) {\n                        subscriber.complete();\n                    }\n                }\n            }));\n        });\n}\n","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { innerFrom } from '../observable/innerFrom';\nimport { noop } from '../util/noop';\nexport function takeUntil(notifier) {\n    return operate((source, subscriber) => {\n        innerFrom(notifier).subscribe(new OperatorSubscriber(subscriber, () => subscriber.complete(), noop));\n        !subscriber.closed && source.subscribe(subscriber);\n    });\n}\n","import { isFunction } from '../util/isFunction';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { identity } from '../util/identity';\nexport function tap(observerOrNext, error, complete) {\n    const tapObserver = isFunction(observerOrNext) || error || complete\n        ?\n            { next: observerOrNext, error, complete }\n        : observerOrNext;\n    return tapObserver\n        ? operate((source, subscriber) => {\n            var _a;\n            (_a = tapObserver.subscribe) === null || _a === void 0 ? void 0 : _a.call(tapObserver);\n            let isUnsub = true;\n            source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n                var _a;\n                (_a = tapObserver.next) === null || _a === void 0 ? void 0 : _a.call(tapObserver, value);\n                subscriber.next(value);\n            }, () => {\n                var _a;\n                isUnsub = false;\n                (_a = tapObserver.complete) === null || _a === void 0 ? void 0 : _a.call(tapObserver);\n                subscriber.complete();\n            }, (err) => {\n                var _a;\n                isUnsub = false;\n                (_a = tapObserver.error) === null || _a === void 0 ? void 0 : _a.call(tapObserver, err);\n                subscriber.error(err);\n            }, () => {\n                var _a, _b;\n                if (isUnsub) {\n                    (_a = tapObserver.unsubscribe) === null || _a === void 0 ? void 0 : _a.call(tapObserver);\n                }\n                (_b = tapObserver.finalize) === null || _b === void 0 ? void 0 : _b.call(tapObserver);\n            }));\n        })\n        :\n            identity;\n}\n","export const dateTimestampProvider = {\n    now() {\n        return (dateTimestampProvider.delegate || Date).now();\n    },\n    delegate: undefined,\n};\n","export const timeoutProvider = {\n    setTimeout(...args) {\n        const { delegate } = timeoutProvider;\n        return ((delegate === null || delegate === void 0 ? void 0 : delegate.setTimeout) || setTimeout)(...args);\n    },\n    clearTimeout(handle) {\n        const { delegate } = timeoutProvider;\n        return ((delegate === null || delegate === void 0 ? void 0 : delegate.clearTimeout) || clearTimeout)(handle);\n    },\n    delegate: undefined,\n};\n","export function getSymbolIterator() {\n    if (typeof Symbol !== 'function' || !Symbol.iterator) {\n        return '@@iterator';\n    }\n    return Symbol.iterator;\n}\nexport const iterator = getSymbolIterator();\n","export const observable = (() => (typeof Symbol === 'function' && Symbol.observable) || '@@observable')();\n","import { createErrorClass } from './createErrorClass';\nexport const EmptyError = createErrorClass((_super) => function EmptyErrorImpl() {\n    _super(this);\n    this.name = 'EmptyError';\n    this.message = 'no elements in sequence';\n});\n","import { isFunction } from './isFunction';\nimport { isScheduler } from './isScheduler';\nfunction last(arr) {\n    return arr[arr.length - 1];\n}\nexport function popResultSelector(args) {\n    return isFunction(last(args)) ? args.pop() : undefined;\n}\nexport function popScheduler(args) {\n    return isScheduler(last(args)) ? args.pop() : undefined;\n}\nexport function popNumber(args, defaultValue) {\n    return typeof last(args) === 'number' ? args.pop() : defaultValue;\n}\n","import { isFunction } from './isFunction';\nexport function isScheduler(value) {\n    return value && isFunction(value.schedule);\n}\n","const { isArray } = Array;\nconst { getPrototypeOf, prototype: objectProto, keys: getKeys } = Object;\nexport function argsArgArrayOrObject(args) {\n    if (args.length === 1) {\n        const first = args[0];\n        if (isArray(first)) {\n            return { args: first, keys: null };\n        }\n        if (isPOJO(first)) {\n            const keys = getKeys(first);\n            return {\n                args: keys.map((key) => first[key]),\n                keys,\n            };\n        }\n    }\n    return { args: args, keys: null };\n}\nfunction isPOJO(obj) {\n    return obj && typeof obj === 'object' && getPrototypeOf(obj) === objectProto;\n}\n","export function arrRemove(arr, item) {\n    if (arr) {\n        const index = arr.indexOf(item);\n        0 <= index && arr.splice(index, 1);\n    }\n}\n","export function createErrorClass(createImpl) {\n    const _super = (instance) => {\n        Error.call(instance);\n        instance.stack = new Error().stack;\n    };\n    const ctorFunc = createImpl(_super);\n    ctorFunc.prototype = Object.create(Error.prototype);\n    ctorFunc.prototype.constructor = ctorFunc;\n    return ctorFunc;\n}\n","export function createObject(keys, values) {\n    return keys.reduce((result, key, i) => ((result[key] = values[i]), result), {});\n}\n","import { config } from '../config';\nlet context = null;\nexport function errorContext(cb) {\n    if (config.useDeprecatedSynchronousErrorHandling) {\n        const isRoot = !context;\n        if (isRoot) {\n            context = { errorThrown: false, error: null };\n        }\n        cb();\n        if (isRoot) {\n            const { errorThrown, error } = context;\n            context = null;\n            if (errorThrown) {\n                throw error;\n            }\n        }\n    }\n    else {\n        cb();\n    }\n}\nexport function captureError(err) {\n    if (config.useDeprecatedSynchronousErrorHandling && context) {\n        context.errorThrown = true;\n        context.error = err;\n    }\n}\n","export function executeSchedule(parentSubscription, scheduler, work, delay = 0, repeat = false) {\n    const scheduleSubscription = scheduler.schedule(function () {\n        work();\n        if (repeat) {\n            parentSubscription.add(this.schedule(null, delay));\n        }\n        else {\n            this.unsubscribe();\n        }\n    }, delay);\n    parentSubscription.add(scheduleSubscription);\n    if (!repeat) {\n        return scheduleSubscription;\n    }\n}\n","export function identity(x) {\n    return x;\n}\n","export const isArrayLike = ((x) => x && typeof x.length === 'number' && typeof x !== 'function');\n","import { isFunction } from './isFunction';\nexport function isAsyncIterable(obj) {\n    return Symbol.asyncIterator && isFunction(obj === null || obj === void 0 ? void 0 : obj[Symbol.asyncIterator]);\n}\n","export function isFunction(value) {\n    return typeof value === 'function';\n}\n","import { observable as Symbol_observable } from '../symbol/observable';\nimport { isFunction } from './isFunction';\nexport function isInteropObservable(input) {\n    return isFunction(input[Symbol_observable]);\n}\n","import { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { isFunction } from './isFunction';\nexport function isIterable(input) {\n    return isFunction(input === null || input === void 0 ? void 0 : input[Symbol_iterator]);\n}\n","import { isFunction } from \"./isFunction\";\nexport function isPromise(value) {\n    return isFunction(value === null || value === void 0 ? void 0 : value.then);\n}\n","import { __asyncGenerator, __await } from \"tslib\";\nimport { isFunction } from './isFunction';\nexport function readableStreamLikeToAsyncGenerator(readableStream) {\n    return __asyncGenerator(this, arguments, function* readableStreamLikeToAsyncGenerator_1() {\n        const reader = readableStream.getReader();\n        try {\n            while (true) {\n                const { value, done } = yield __await(reader.read());\n                if (done) {\n                    return yield __await(void 0);\n                }\n                yield yield __await(value);\n            }\n        }\n        finally {\n            reader.releaseLock();\n        }\n    });\n}\nexport function isReadableStreamLike(obj) {\n    return isFunction(obj === null || obj === void 0 ? void 0 : obj.getReader);\n}\n","import { isFunction } from './isFunction';\nexport function hasLift(source) {\n    return isFunction(source === null || source === void 0 ? void 0 : source.lift);\n}\nexport function operate(init) {\n    return (source) => {\n        if (hasLift(source)) {\n            return source.lift(function (liftedSource) {\n                try {\n                    return init(liftedSource, this);\n                }\n                catch (err) {\n                    this.error(err);\n                }\n            });\n        }\n        throw new TypeError('Unable to lift unknown Observable type');\n    };\n}\n","import { map } from \"../operators/map\";\nconst { isArray } = Array;\nfunction callOrApply(fn, args) {\n    return isArray(args) ? fn(...args) : fn(args);\n}\nexport function mapOneOrManyArgs(fn) {\n    return map(args => callOrApply(fn, args));\n}\n","export function noop() { }\n","import { identity } from './identity';\nexport function pipe(...fns) {\n    return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n    if (fns.length === 0) {\n        return identity;\n    }\n    if (fns.length === 1) {\n        return fns[0];\n    }\n    return function piped(input) {\n        return fns.reduce((prev, fn) => fn(prev), input);\n    };\n}\n","import { config } from '../config';\nimport { timeoutProvider } from '../scheduler/timeoutProvider';\nexport function reportUnhandledError(err) {\n    timeoutProvider.setTimeout(() => {\n        const { onUnhandledError } = config;\n        if (onUnhandledError) {\n            onUnhandledError(err);\n        }\n        else {\n            throw err;\n        }\n    });\n}\n","export function createInvalidObservableTypeError(input) {\n    return new TypeError(`You provided ${input !== null && typeof input === 'object' ? 'an invalid object' : `'${input}'`} where a stream was expected. You can provide an Observable, Promise, ReadableStream, Array, AsyncIterable, or Iterable.`);\n}\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    if (typeof b !== \"function\" && b !== null)\r\n        throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n    return new (P || (P = Promise))(function (resolve, reject) {\r\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n    });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n    return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n    function verb(n) { return function (v) { return step([n, v]); }; }\r\n    function step(op) {\r\n        if (f) throw new TypeError(\"Generator is already executing.\");\r\n        while (_) try {\r\n            if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n            if (y = 0, t) op = [op[0] & 2, t.value];\r\n            switch (op[0]) {\r\n                case 0: case 1: t = op; break;\r\n                case 4: _.label++; return { value: op[1], done: false };\r\n                case 5: _.label++; y = op[1]; op = [0]; continue;\r\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n                default:\r\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n                    if (t[2]) _.ops.pop();\r\n                    _.trys.pop(); continue;\r\n            }\r\n            op = body.call(thisArg, _);\r\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n    }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n    for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n}\r\n\r\nexport function __spreadArray(to, from) {\r\n    for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)\r\n        to[j] = from[i];\r\n    return to;\r\n}\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to get private field on non-instance\");\r\n    }\r\n    return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to set private field on non-instance\");\r\n    }\r\n    privateMap.set(receiver, value);\r\n    return value;\r\n}\r\n","var map = {\n\t\"./authentication/authentication.module\": [\n\t\t55083,\n\t\t250,\n\t\t476,\n\t\t261,\n\t\t108,\n\t\t149,\n\t\t166,\n\t\t83\n\t],\n\t\"./authentication/features/esignatures/public-esignatures.module\": [\n\t\t5149,\n\t\t250,\n\t\t476,\n\t\t149\n\t],\n\t\"./set-new-password/set-new-password.module\": [\n\t\t81512,\n\t\t250,\n\t\t476,\n\t\t261,\n\t\t331,\n\t\t108,\n\t\t166,\n\t\t512\n\t],\n\t\"./set-up-two-factor-authentication/set-up-two-factor-authentication.module\": [\n\t\t16558,\n\t\t250,\n\t\t476,\n\t\t261,\n\t\t331,\n\t\t108,\n\t\t558\n\t],\n\t\"./user-agreements/user-agreements.module\": [\n\t\t90537,\n\t\t250,\n\t\t476,\n\t\t261,\n\t\t331,\n\t\t537\n\t],\n\t\"./welcome/welcome.module\": [\n\t\t626,\n\t\t250,\n\t\t476,\n\t\t261,\n\t\t331,\n\t\t626\n\t]\n};\nfunction webpackAsyncContext(req) {\n\tif(!__webpack_require__.o(map, req)) {\n\t\treturn Promise.resolve().then(() => {\n\t\t\tvar e = new Error(\"Cannot find module '\" + req + \"'\");\n\t\t\te.code = 'MODULE_NOT_FOUND';\n\t\t\tthrow e;\n\t\t});\n\t}\n\n\tvar ids = map[req], id = ids[0];\n\treturn Promise.all(ids.slice(1).map(__webpack_require__.e)).then(() => {\n\t\treturn __webpack_require__(id);\n\t});\n}\nwebpackAsyncContext.keys = () => (Object.keys(map));\nwebpackAsyncContext.id = 62688;\nmodule.exports = webpackAsyncContext;","module.exports = Immutable;","module.exports = angular;","/**\n * @license Angular v16.2.12\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { InjectionToken, inject, Injectable, Optional, Inject, EventEmitter, ɵɵinject, ɵfindLocaleData, ɵLocaleDataIndex, ɵgetLocaleCurrencyCode, ɵgetLocalePluralCase, LOCALE_ID, ɵregisterLocaleData, ɵstringify, Directive, Input, createNgModule, NgModuleRef, ɵRuntimeError, Host, Attribute, RendererStyleFlags2, untracked, ɵisPromise, ɵisSubscribable, Pipe, DEFAULT_CURRENCY_CODE, NgModule, Version, ɵɵdefineInjectable, ɵformatRuntimeError, Renderer2, ElementRef, Injector, PLATFORM_ID, NgZone, numberAttribute, booleanAttribute, ɵunwrapSafeValue } from '@angular/core';\n\nlet _DOM = null;\nfunction getDOM() {\n    return _DOM;\n}\nfunction setRootDomAdapter(adapter) {\n    if (!_DOM) {\n        _DOM = adapter;\n    }\n}\n/* tslint:disable:requireParameterType */\n/**\n * Provides DOM operations in an environment-agnostic way.\n *\n * @security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\nclass DomAdapter {\n}\n\n/**\n * A DI Token representing the main rendering context.\n * In a browser and SSR this is the DOM Document.\n * When using SSR, that document is created by [Domino](https://github.com/angular/domino).\n *\n * @publicApi\n */\nconst DOCUMENT = new InjectionToken('DocumentToken');\n\n/**\n * This class should not be used directly by an application developer. Instead, use\n * {@link Location}.\n *\n * `PlatformLocation` encapsulates all calls to DOM APIs, which allows the Router to be\n * platform-agnostic.\n * This means that we can have different implementation of `PlatformLocation` for the different\n * platforms that Angular supports. For example, `@angular/platform-browser` provides an\n * implementation specific to the browser environment, while `@angular/platform-server` provides\n * one suitable for use with server-side rendering.\n *\n * The `PlatformLocation` class is used directly by all implementations of {@link LocationStrategy}\n * when they need to interact with the DOM APIs like pushState, popState, etc.\n *\n * {@link LocationStrategy} in turn is used by the {@link Location} service which is used directly\n * by the {@link Router} in order to navigate between routes. Since all interactions between {@link\n * Router} /\n * {@link Location} / {@link LocationStrategy} and DOM APIs flow through the `PlatformLocation`\n * class, they are all platform-agnostic.\n *\n * @publicApi\n */\nclass PlatformLocation {\n    historyGo(relativePosition) {\n        throw new Error('Not implemented');\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PlatformLocation, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PlatformLocation, providedIn: 'platform', useFactory: () => inject(BrowserPlatformLocation) }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PlatformLocation, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'platform', useFactory: () => inject(BrowserPlatformLocation) }]\n        }] });\n/**\n * @description\n * Indicates when a location is initialized.\n *\n * @publicApi\n */\nconst LOCATION_INITIALIZED = new InjectionToken('Location Initialized');\n/**\n * `PlatformLocation` encapsulates all of the direct calls to platform APIs.\n * This class should not be used directly by an application developer. Instead, use\n * {@link Location}.\n *\n * @publicApi\n */\nclass BrowserPlatformLocation extends PlatformLocation {\n    constructor() {\n        super();\n        this._doc = inject(DOCUMENT);\n        this._location = window.location;\n        this._history = window.history;\n    }\n    getBaseHrefFromDOM() {\n        return getDOM().getBaseHref(this._doc);\n    }\n    onPopState(fn) {\n        const window = getDOM().getGlobalEventTarget(this._doc, 'window');\n        window.addEventListener('popstate', fn, false);\n        return () => window.removeEventListener('popstate', fn);\n    }\n    onHashChange(fn) {\n        const window = getDOM().getGlobalEventTarget(this._doc, 'window');\n        window.addEventListener('hashchange', fn, false);\n        return () => window.removeEventListener('hashchange', fn);\n    }\n    get href() {\n        return this._location.href;\n    }\n    get protocol() {\n        return this._location.protocol;\n    }\n    get hostname() {\n        return this._location.hostname;\n    }\n    get port() {\n        return this._location.port;\n    }\n    get pathname() {\n        return this._location.pathname;\n    }\n    get search() {\n        return this._location.search;\n    }\n    get hash() {\n        return this._location.hash;\n    }\n    set pathname(newPath) {\n        this._location.pathname = newPath;\n    }\n    pushState(state, title, url) {\n        this._history.pushState(state, title, url);\n    }\n    replaceState(state, title, url) {\n        this._history.replaceState(state, title, url);\n    }\n    forward() {\n        this._history.forward();\n    }\n    back() {\n        this._history.back();\n    }\n    historyGo(relativePosition = 0) {\n        this._history.go(relativePosition);\n    }\n    getState() {\n        return this._history.state;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserPlatformLocation, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserPlatformLocation, providedIn: 'platform', useFactory: () => new BrowserPlatformLocation() }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserPlatformLocation, decorators: [{\n            type: Injectable,\n            args: [{\n                    providedIn: 'platform',\n                    useFactory: () => new BrowserPlatformLocation(),\n                }]\n        }], ctorParameters: function () { return []; } });\n\n/**\n * Joins two parts of a URL with a slash if needed.\n *\n * @param start  URL string\n * @param end    URL string\n *\n *\n * @returns The joined URL string.\n */\nfunction joinWithSlash(start, end) {\n    if (start.length == 0) {\n        return end;\n    }\n    if (end.length == 0) {\n        return start;\n    }\n    let slashes = 0;\n    if (start.endsWith('/')) {\n        slashes++;\n    }\n    if (end.startsWith('/')) {\n        slashes++;\n    }\n    if (slashes == 2) {\n        return start + end.substring(1);\n    }\n    if (slashes == 1) {\n        return start + end;\n    }\n    return start + '/' + end;\n}\n/**\n * Removes a trailing slash from a URL string if needed.\n * Looks for the first occurrence of either `#`, `?`, or the end of the\n * line as `/` characters and removes the trailing slash if one exists.\n *\n * @param url URL string.\n *\n * @returns The URL string, modified if needed.\n */\nfunction stripTrailingSlash(url) {\n    const match = url.match(/#|\\?|$/);\n    const pathEndIdx = match && match.index || url.length;\n    const droppedSlashIdx = pathEndIdx - (url[pathEndIdx - 1] === '/' ? 1 : 0);\n    return url.slice(0, droppedSlashIdx) + url.slice(pathEndIdx);\n}\n/**\n * Normalizes URL parameters by prepending with `?` if needed.\n *\n * @param  params String of URL parameters.\n *\n * @returns The normalized URL parameters string.\n */\nfunction normalizeQueryParams(params) {\n    return params && params[0] !== '?' ? '?' + params : params;\n}\n\n/**\n * Enables the `Location` service to read route state from the browser's URL.\n * Angular provides two strategies:\n * `HashLocationStrategy` and `PathLocationStrategy`.\n *\n * Applications should use the `Router` or `Location` services to\n * interact with application route state.\n *\n * For instance, `HashLocationStrategy` produces URLs like\n * <code class=\"no-auto-link\">http://example.com#/foo</code>,\n * and `PathLocationStrategy` produces\n * <code class=\"no-auto-link\">http://example.com/foo</code> as an equivalent URL.\n *\n * See these two classes for more.\n *\n * @publicApi\n */\nclass LocationStrategy {\n    historyGo(relativePosition) {\n        throw new Error('Not implemented');\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LocationStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LocationStrategy, providedIn: 'root', useFactory: () => inject(PathLocationStrategy) }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LocationStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: () => inject(PathLocationStrategy) }]\n        }] });\n/**\n * A predefined [DI token](guide/glossary#di-token) for the base href\n * to be used with the `PathLocationStrategy`.\n * The base href is the URL prefix that should be preserved when generating\n * and recognizing URLs.\n *\n * @usageNotes\n *\n * The following example shows how to use this token to configure the root app injector\n * with a base href value, so that the DI framework can supply the dependency anywhere in the app.\n *\n * ```typescript\n * import {NgModule} from '@angular/core';\n * import {APP_BASE_HREF} from '@angular/common';\n *\n * @NgModule({\n *   providers: [{provide: APP_BASE_HREF, useValue: '/my/app'}]\n * })\n * class AppModule {}\n * ```\n *\n * @publicApi\n */\nconst APP_BASE_HREF = new InjectionToken('appBaseHref');\n/**\n * @description\n * A {@link LocationStrategy} used to configure the {@link Location} service to\n * represent its state in the\n * [path](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax) of the\n * browser's URL.\n *\n * If you're using `PathLocationStrategy`, you may provide a {@link APP_BASE_HREF}\n * or add a `<base href>` element to the document to override the default.\n *\n * For instance, if you provide an `APP_BASE_HREF` of `'/my/app/'` and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`. To ensure all relative URIs resolve correctly,\n * the `<base href>` and/or `APP_BASE_HREF` should end with a `/`.\n *\n * Similarly, if you add `<base href='/my/app/'/>` to the document and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`.\n *\n * Note that when using `PathLocationStrategy`, neither the query nor\n * the fragment in the `<base href>` will be preserved, as outlined\n * by the [RFC](https://tools.ietf.org/html/rfc3986#section-5.2.2).\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/location/ts/path_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\nclass PathLocationStrategy extends LocationStrategy {\n    constructor(_platformLocation, href) {\n        super();\n        this._platformLocation = _platformLocation;\n        this._removeListenerFns = [];\n        this._baseHref = href ?? this._platformLocation.getBaseHrefFromDOM() ??\n            inject(DOCUMENT).location?.origin ?? '';\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        while (this._removeListenerFns.length) {\n            this._removeListenerFns.pop()();\n        }\n    }\n    onPopState(fn) {\n        this._removeListenerFns.push(this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));\n    }\n    getBaseHref() {\n        return this._baseHref;\n    }\n    prepareExternalUrl(internal) {\n        return joinWithSlash(this._baseHref, internal);\n    }\n    path(includeHash = false) {\n        const pathname = this._platformLocation.pathname + normalizeQueryParams(this._platformLocation.search);\n        const hash = this._platformLocation.hash;\n        return hash && includeHash ? `${pathname}${hash}` : pathname;\n    }\n    pushState(state, title, url, queryParams) {\n        const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n        this._platformLocation.pushState(state, title, externalUrl);\n    }\n    replaceState(state, title, url, queryParams) {\n        const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n        this._platformLocation.replaceState(state, title, externalUrl);\n    }\n    forward() {\n        this._platformLocation.forward();\n    }\n    back() {\n        this._platformLocation.back();\n    }\n    getState() {\n        return this._platformLocation.getState();\n    }\n    historyGo(relativePosition = 0) {\n        this._platformLocation.historyGo?.(relativePosition);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PathLocationStrategy, deps: [{ token: PlatformLocation }, { token: APP_BASE_HREF, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PathLocationStrategy, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PathLocationStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return [{ type: PlatformLocation }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [APP_BASE_HREF]\n                }] }]; } });\n\n/**\n * @description\n * A {@link LocationStrategy} used to configure the {@link Location} service to\n * represent its state in the\n * [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)\n * of the browser's URL.\n *\n * For instance, if you call `location.go('/foo')`, the browser's URL will become\n * `example.com#/foo`.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/location/ts/hash_location_component.ts region='LocationComponent'}\n *\n * @publicApi\n */\nclass HashLocationStrategy extends LocationStrategy {\n    constructor(_platformLocation, _baseHref) {\n        super();\n        this._platformLocation = _platformLocation;\n        this._baseHref = '';\n        this._removeListenerFns = [];\n        if (_baseHref != null) {\n            this._baseHref = _baseHref;\n        }\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        while (this._removeListenerFns.length) {\n            this._removeListenerFns.pop()();\n        }\n    }\n    onPopState(fn) {\n        this._removeListenerFns.push(this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));\n    }\n    getBaseHref() {\n        return this._baseHref;\n    }\n    path(includeHash = false) {\n        // the hash value is always prefixed with a `#`\n        // and if it is empty then it will stay empty\n        let path = this._platformLocation.hash;\n        if (path == null)\n            path = '#';\n        return path.length > 0 ? path.substring(1) : path;\n    }\n    prepareExternalUrl(internal) {\n        const url = joinWithSlash(this._baseHref, internal);\n        return url.length > 0 ? ('#' + url) : url;\n    }\n    pushState(state, title, path, queryParams) {\n        let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));\n        if (url.length == 0) {\n            url = this._platformLocation.pathname;\n        }\n        this._platformLocation.pushState(state, title, url);\n    }\n    replaceState(state, title, path, queryParams) {\n        let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));\n        if (url.length == 0) {\n            url = this._platformLocation.pathname;\n        }\n        this._platformLocation.replaceState(state, title, url);\n    }\n    forward() {\n        this._platformLocation.forward();\n    }\n    back() {\n        this._platformLocation.back();\n    }\n    getState() {\n        return this._platformLocation.getState();\n    }\n    historyGo(relativePosition = 0) {\n        this._platformLocation.historyGo?.(relativePosition);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HashLocationStrategy, deps: [{ token: PlatformLocation }, { token: APP_BASE_HREF, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HashLocationStrategy }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HashLocationStrategy, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: PlatformLocation }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [APP_BASE_HREF]\n                }] }]; } });\n\n/**\n * @description\n *\n * A service that applications can use to interact with a browser's URL.\n *\n * Depending on the `LocationStrategy` used, `Location` persists\n * to the URL's path or the URL's hash segment.\n *\n * @usageNotes\n *\n * It's better to use the `Router.navigate()` service to trigger route changes. Use\n * `Location` only if you need to interact with or create normalized URLs outside of\n * routing.\n *\n * `Location` is responsible for normalizing the URL against the application's base href.\n * A normalized URL is absolute from the URL host, includes the application's base href, and has no\n * trailing slash:\n * - `/my/app/user/123` is normalized\n * - `my/app/user/123` **is not** normalized\n * - `/my/app/user/123/` **is not** normalized\n *\n * ### Example\n *\n * <code-example path='common/location/ts/path_location_component.ts'\n * region='LocationComponent'></code-example>\n *\n * @publicApi\n */\nclass Location {\n    constructor(locationStrategy) {\n        /** @internal */\n        this._subject = new EventEmitter();\n        /** @internal */\n        this._urlChangeListeners = [];\n        /** @internal */\n        this._urlChangeSubscription = null;\n        this._locationStrategy = locationStrategy;\n        const baseHref = this._locationStrategy.getBaseHref();\n        // Note: This class's interaction with base HREF does not fully follow the rules\n        // outlined in the spec https://www.freesoft.org/CIE/RFC/1808/18.htm.\n        // Instead of trying to fix individual bugs with more and more code, we should\n        // investigate using the URL constructor and providing the base as a second\n        // argument.\n        // https://developer.mozilla.org/en-US/docs/Web/API/URL/URL#parameters\n        this._basePath = _stripOrigin(stripTrailingSlash(_stripIndexHtml(baseHref)));\n        this._locationStrategy.onPopState((ev) => {\n            this._subject.emit({\n                'url': this.path(true),\n                'pop': true,\n                'state': ev.state,\n                'type': ev.type,\n            });\n        });\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this._urlChangeSubscription?.unsubscribe();\n        this._urlChangeListeners = [];\n    }\n    /**\n     * Normalizes the URL path for this location.\n     *\n     * @param includeHash True to include an anchor fragment in the path.\n     *\n     * @returns The normalized URL path.\n     */\n    // TODO: vsavkin. Remove the boolean flag and always include hash once the deprecated router is\n    // removed.\n    path(includeHash = false) {\n        return this.normalize(this._locationStrategy.path(includeHash));\n    }\n    /**\n     * Reports the current state of the location history.\n     * @returns The current value of the `history.state` object.\n     */\n    getState() {\n        return this._locationStrategy.getState();\n    }\n    /**\n     * Normalizes the given path and compares to the current normalized path.\n     *\n     * @param path The given URL path.\n     * @param query Query parameters.\n     *\n     * @returns True if the given URL path is equal to the current normalized path, false\n     * otherwise.\n     */\n    isCurrentPathEqualTo(path, query = '') {\n        return this.path() == this.normalize(path + normalizeQueryParams(query));\n    }\n    /**\n     * Normalizes a URL path by stripping any trailing slashes.\n     *\n     * @param url String representing a URL.\n     *\n     * @returns The normalized URL string.\n     */\n    normalize(url) {\n        return Location.stripTrailingSlash(_stripBasePath(this._basePath, _stripIndexHtml(url)));\n    }\n    /**\n     * Normalizes an external URL path.\n     * If the given URL doesn't begin with a leading slash (`'/'`), adds one\n     * before normalizing. Adds a hash if `HashLocationStrategy` is\n     * in use, or the `APP_BASE_HREF` if the `PathLocationStrategy` is in use.\n     *\n     * @param url String representing a URL.\n     *\n     * @returns  A normalized platform-specific URL.\n     */\n    prepareExternalUrl(url) {\n        if (url && url[0] !== '/') {\n            url = '/' + url;\n        }\n        return this._locationStrategy.prepareExternalUrl(url);\n    }\n    // TODO: rename this method to pushState\n    /**\n     * Changes the browser's URL to a normalized version of a given URL, and pushes a\n     * new item onto the platform's history.\n     *\n     * @param path  URL path to normalize.\n     * @param query Query parameters.\n     * @param state Location history state.\n     *\n     */\n    go(path, query = '', state = null) {\n        this._locationStrategy.pushState(state, '', path, query);\n        this._notifyUrlChangeListeners(this.prepareExternalUrl(path + normalizeQueryParams(query)), state);\n    }\n    /**\n     * Changes the browser's URL to a normalized version of the given URL, and replaces\n     * the top item on the platform's history stack.\n     *\n     * @param path  URL path to normalize.\n     * @param query Query parameters.\n     * @param state Location history state.\n     */\n    replaceState(path, query = '', state = null) {\n        this._locationStrategy.replaceState(state, '', path, query);\n        this._notifyUrlChangeListeners(this.prepareExternalUrl(path + normalizeQueryParams(query)), state);\n    }\n    /**\n     * Navigates forward in the platform's history.\n     */\n    forward() {\n        this._locationStrategy.forward();\n    }\n    /**\n     * Navigates back in the platform's history.\n     */\n    back() {\n        this._locationStrategy.back();\n    }\n    /**\n     * Navigate to a specific page from session history, identified by its relative position to the\n     * current page.\n     *\n     * @param relativePosition  Position of the target page in the history relative to the current\n     *     page.\n     * A negative value moves backwards, a positive value moves forwards, e.g. `location.historyGo(2)`\n     * moves forward two pages and `location.historyGo(-2)` moves back two pages. When we try to go\n     * beyond what's stored in the history session, we stay in the current page. Same behaviour occurs\n     * when `relativePosition` equals 0.\n     * @see https://developer.mozilla.org/en-US/docs/Web/API/History_API#Moving_to_a_specific_point_in_history\n     */\n    historyGo(relativePosition = 0) {\n        this._locationStrategy.historyGo?.(relativePosition);\n    }\n    /**\n     * Registers a URL change listener. Use to catch updates performed by the Angular\n     * framework that are not detectible through \"popstate\" or \"hashchange\" events.\n     *\n     * @param fn The change handler function, which take a URL and a location history state.\n     * @returns A function that, when executed, unregisters a URL change listener.\n     */\n    onUrlChange(fn) {\n        this._urlChangeListeners.push(fn);\n        if (!this._urlChangeSubscription) {\n            this._urlChangeSubscription = this.subscribe(v => {\n                this._notifyUrlChangeListeners(v.url, v.state);\n            });\n        }\n        return () => {\n            const fnIndex = this._urlChangeListeners.indexOf(fn);\n            this._urlChangeListeners.splice(fnIndex, 1);\n            if (this._urlChangeListeners.length === 0) {\n                this._urlChangeSubscription?.unsubscribe();\n                this._urlChangeSubscription = null;\n            }\n        };\n    }\n    /** @internal */\n    _notifyUrlChangeListeners(url = '', state) {\n        this._urlChangeListeners.forEach(fn => fn(url, state));\n    }\n    /**\n     * Subscribes to the platform's `popState` events.\n     *\n     * Note: `Location.go()` does not trigger the `popState` event in the browser. Use\n     * `Location.onUrlChange()` to subscribe to URL changes instead.\n     *\n     * @param value Event that is triggered when the state history changes.\n     * @param exception The exception to throw.\n     *\n     * @see [onpopstate](https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onpopstate)\n     *\n     * @returns Subscribed events.\n     */\n    subscribe(onNext, onThrow, onReturn) {\n        return this._subject.subscribe({ next: onNext, error: onThrow, complete: onReturn });\n    }\n    /**\n     * Normalizes URL parameters by prepending with `?` if needed.\n     *\n     * @param  params String of URL parameters.\n     *\n     * @returns The normalized URL parameters string.\n     */\n    static { this.normalizeQueryParams = normalizeQueryParams; }\n    /**\n     * Joins two parts of a URL with a slash if needed.\n     *\n     * @param start  URL string\n     * @param end    URL string\n     *\n     *\n     * @returns The joined URL string.\n     */\n    static { this.joinWithSlash = joinWithSlash; }\n    /**\n     * Removes a trailing slash from a URL string if needed.\n     * Looks for the first occurrence of either `#`, `?`, or the end of the\n     * line as `/` characters and removes the trailing slash if one exists.\n     *\n     * @param url URL string.\n     *\n     * @returns The URL string, modified if needed.\n     */\n    static { this.stripTrailingSlash = stripTrailingSlash; }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Location, deps: [{ token: LocationStrategy }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Location, providedIn: 'root', useFactory: createLocation }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Location, decorators: [{\n            type: Injectable,\n            args: [{\n                    providedIn: 'root',\n                    // See #23917\n                    useFactory: createLocation,\n                }]\n        }], ctorParameters: function () { return [{ type: LocationStrategy }]; } });\nfunction createLocation() {\n    return new Location(ɵɵinject(LocationStrategy));\n}\nfunction _stripBasePath(basePath, url) {\n    if (!basePath || !url.startsWith(basePath)) {\n        return url;\n    }\n    const strippedUrl = url.substring(basePath.length);\n    if (strippedUrl === '' || ['/', ';', '?', '#'].includes(strippedUrl[0])) {\n        return strippedUrl;\n    }\n    return url;\n}\nfunction _stripIndexHtml(url) {\n    return url.replace(/\\/index.html$/, '');\n}\nfunction _stripOrigin(baseHref) {\n    // DO NOT REFACTOR! Previously, this check looked like this:\n    // `/^(https?:)?\\/\\//.test(baseHref)`, but that resulted in\n    // syntactically incorrect code after Closure Compiler minification.\n    // This was likely caused by a bug in Closure Compiler, but\n    // for now, the check is rewritten to use `new RegExp` instead.\n    const isAbsoluteUrl = (new RegExp('^(https?:)?//')).test(baseHref);\n    if (isAbsoluteUrl) {\n        const [, pathname] = baseHref.split(/\\/\\/[^\\/]+/);\n        return pathname;\n    }\n    return baseHref;\n}\n\n/** @internal */\nconst CURRENCIES_EN = { \"ADP\": [undefined, undefined, 0], \"AFN\": [undefined, \"؋\", 0], \"ALL\": [undefined, undefined, 0], \"AMD\": [undefined, \"֏\", 2], \"AOA\": [undefined, \"Kz\"], \"ARS\": [undefined, \"$\"], \"AUD\": [\"A$\", \"$\"], \"AZN\": [undefined, \"₼\"], \"BAM\": [undefined, \"KM\"], \"BBD\": [undefined, \"$\"], \"BDT\": [undefined, \"৳\"], \"BHD\": [undefined, undefined, 3], \"BIF\": [undefined, undefined, 0], \"BMD\": [undefined, \"$\"], \"BND\": [undefined, \"$\"], \"BOB\": [undefined, \"Bs\"], \"BRL\": [\"R$\"], \"BSD\": [undefined, \"$\"], \"BWP\": [undefined, \"P\"], \"BYN\": [undefined, undefined, 2], \"BYR\": [undefined, undefined, 0], \"BZD\": [undefined, \"$\"], \"CAD\": [\"CA$\", \"$\", 2], \"CHF\": [undefined, undefined, 2], \"CLF\": [undefined, undefined, 4], \"CLP\": [undefined, \"$\", 0], \"CNY\": [\"CN¥\", \"¥\"], \"COP\": [undefined, \"$\", 2], \"CRC\": [undefined, \"₡\", 2], \"CUC\": [undefined, \"$\"], \"CUP\": [undefined, \"$\"], \"CZK\": [undefined, \"Kč\", 2], \"DJF\": [undefined, undefined, 0], \"DKK\": [undefined, \"kr\", 2], \"DOP\": [undefined, \"$\"], \"EGP\": [undefined, \"E£\"], \"ESP\": [undefined, \"₧\", 0], \"EUR\": [\"€\"], \"FJD\": [undefined, \"$\"], \"FKP\": [undefined, \"£\"], \"GBP\": [\"£\"], \"GEL\": [undefined, \"₾\"], \"GHS\": [undefined, \"GH₵\"], \"GIP\": [undefined, \"£\"], \"GNF\": [undefined, \"FG\", 0], \"GTQ\": [undefined, \"Q\"], \"GYD\": [undefined, \"$\", 2], \"HKD\": [\"HK$\", \"$\"], \"HNL\": [undefined, \"L\"], \"HRK\": [undefined, \"kn\"], \"HUF\": [undefined, \"Ft\", 2], \"IDR\": [undefined, \"Rp\", 2], \"ILS\": [\"₪\"], \"INR\": [\"₹\"], \"IQD\": [undefined, undefined, 0], \"IRR\": [undefined, undefined, 0], \"ISK\": [undefined, \"kr\", 0], \"ITL\": [undefined, undefined, 0], \"JMD\": [undefined, \"$\"], \"JOD\": [undefined, undefined, 3], \"JPY\": [\"¥\", undefined, 0], \"KHR\": [undefined, \"៛\"], \"KMF\": [undefined, \"CF\", 0], \"KPW\": [undefined, \"₩\", 0], \"KRW\": [\"₩\", undefined, 0], \"KWD\": [undefined, undefined, 3], \"KYD\": [undefined, \"$\"], \"KZT\": [undefined, \"₸\"], \"LAK\": [undefined, \"₭\", 0], \"LBP\": [undefined, \"L£\", 0], \"LKR\": [undefined, \"Rs\"], \"LRD\": [undefined, \"$\"], \"LTL\": [undefined, \"Lt\"], \"LUF\": [undefined, undefined, 0], \"LVL\": [undefined, \"Ls\"], \"LYD\": [undefined, undefined, 3], \"MGA\": [undefined, \"Ar\", 0], \"MGF\": [undefined, undefined, 0], \"MMK\": [undefined, \"K\", 0], \"MNT\": [undefined, \"₮\", 2], \"MRO\": [undefined, undefined, 0], \"MUR\": [undefined, \"Rs\", 2], \"MXN\": [\"MX$\", \"$\"], \"MYR\": [undefined, \"RM\"], \"NAD\": [undefined, \"$\"], \"NGN\": [undefined, \"₦\"], \"NIO\": [undefined, \"C$\"], \"NOK\": [undefined, \"kr\", 2], \"NPR\": [undefined, \"Rs\"], \"NZD\": [\"NZ$\", \"$\"], \"OMR\": [undefined, undefined, 3], \"PHP\": [\"₱\"], \"PKR\": [undefined, \"Rs\", 2], \"PLN\": [undefined, \"zł\"], \"PYG\": [undefined, \"₲\", 0], \"RON\": [undefined, \"lei\"], \"RSD\": [undefined, undefined, 0], \"RUB\": [undefined, \"₽\"], \"RWF\": [undefined, \"RF\", 0], \"SBD\": [undefined, \"$\"], \"SEK\": [undefined, \"kr\", 2], \"SGD\": [undefined, \"$\"], \"SHP\": [undefined, \"£\"], \"SLE\": [undefined, undefined, 2], \"SLL\": [undefined, undefined, 0], \"SOS\": [undefined, undefined, 0], \"SRD\": [undefined, \"$\"], \"SSP\": [undefined, \"£\"], \"STD\": [undefined, undefined, 0], \"STN\": [undefined, \"Db\"], \"SYP\": [undefined, \"£\", 0], \"THB\": [undefined, \"฿\"], \"TMM\": [undefined, undefined, 0], \"TND\": [undefined, undefined, 3], \"TOP\": [undefined, \"T$\"], \"TRL\": [undefined, undefined, 0], \"TRY\": [undefined, \"₺\"], \"TTD\": [undefined, \"$\"], \"TWD\": [\"NT$\", \"$\", 2], \"TZS\": [undefined, undefined, 2], \"UAH\": [undefined, \"₴\"], \"UGX\": [undefined, undefined, 0], \"USD\": [\"$\"], \"UYI\": [undefined, undefined, 0], \"UYU\": [undefined, \"$\"], \"UYW\": [undefined, undefined, 4], \"UZS\": [undefined, undefined, 2], \"VEF\": [undefined, \"Bs\", 2], \"VND\": [\"₫\", undefined, 0], \"VUV\": [undefined, undefined, 0], \"XAF\": [\"FCFA\", undefined, 0], \"XCD\": [\"EC$\", \"$\"], \"XOF\": [\"F CFA\", undefined, 0], \"XPF\": [\"CFPF\", undefined, 0], \"XXX\": [\"¤\"], \"YER\": [undefined, undefined, 0], \"ZAR\": [undefined, \"R\"], \"ZMK\": [undefined, undefined, 0], \"ZMW\": [undefined, \"ZK\"], \"ZWD\": [undefined, undefined, 0] };\n\n/**\n * Format styles that can be used to represent numbers.\n * @see {@link getLocaleNumberFormat}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nvar NumberFormatStyle;\n(function (NumberFormatStyle) {\n    NumberFormatStyle[NumberFormatStyle[\"Decimal\"] = 0] = \"Decimal\";\n    NumberFormatStyle[NumberFormatStyle[\"Percent\"] = 1] = \"Percent\";\n    NumberFormatStyle[NumberFormatStyle[\"Currency\"] = 2] = \"Currency\";\n    NumberFormatStyle[NumberFormatStyle[\"Scientific\"] = 3] = \"Scientific\";\n})(NumberFormatStyle || (NumberFormatStyle = {}));\n/**\n * Plurality cases used for translating plurals to different languages.\n *\n * @see {@link NgPlural}\n * @see {@link NgPluralCase}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nvar Plural;\n(function (Plural) {\n    Plural[Plural[\"Zero\"] = 0] = \"Zero\";\n    Plural[Plural[\"One\"] = 1] = \"One\";\n    Plural[Plural[\"Two\"] = 2] = \"Two\";\n    Plural[Plural[\"Few\"] = 3] = \"Few\";\n    Plural[Plural[\"Many\"] = 4] = \"Many\";\n    Plural[Plural[\"Other\"] = 5] = \"Other\";\n})(Plural || (Plural = {}));\n/**\n * Context-dependant translation forms for strings.\n * Typically the standalone version is for the nominative form of the word,\n * and the format version is used for the genitive case.\n * @see [CLDR website](http://cldr.unicode.org/translation/date-time-1/date-time#TOC-Standalone-vs.-Format-Styles)\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nvar FormStyle;\n(function (FormStyle) {\n    FormStyle[FormStyle[\"Format\"] = 0] = \"Format\";\n    FormStyle[FormStyle[\"Standalone\"] = 1] = \"Standalone\";\n})(FormStyle || (FormStyle = {}));\n/**\n * String widths available for translations.\n * The specific character widths are locale-specific.\n * Examples are given for the word \"Sunday\" in English.\n *\n * @publicApi\n */\nvar TranslationWidth;\n(function (TranslationWidth) {\n    /** 1 character for `en-US`. For example: 'S' */\n    TranslationWidth[TranslationWidth[\"Narrow\"] = 0] = \"Narrow\";\n    /** 3 characters for `en-US`. For example: 'Sun' */\n    TranslationWidth[TranslationWidth[\"Abbreviated\"] = 1] = \"Abbreviated\";\n    /** Full length for `en-US`. For example: \"Sunday\" */\n    TranslationWidth[TranslationWidth[\"Wide\"] = 2] = \"Wide\";\n    /** 2 characters for `en-US`, For example: \"Su\" */\n    TranslationWidth[TranslationWidth[\"Short\"] = 3] = \"Short\";\n})(TranslationWidth || (TranslationWidth = {}));\n/**\n * String widths available for date-time formats.\n * The specific character widths are locale-specific.\n * Examples are given for `en-US`.\n *\n * @see {@link getLocaleDateFormat}\n * @see {@link getLocaleTimeFormat}\n * @see {@link getLocaleDateTimeFormat}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n * @publicApi\n */\nvar FormatWidth;\n(function (FormatWidth) {\n    /**\n     * For `en-US`, 'M/d/yy, h:mm a'`\n     * (Example: `6/15/15, 9:03 AM`)\n     */\n    FormatWidth[FormatWidth[\"Short\"] = 0] = \"Short\";\n    /**\n     * For `en-US`, `'MMM d, y, h:mm:ss a'`\n     * (Example: `Jun 15, 2015, 9:03:01 AM`)\n     */\n    FormatWidth[FormatWidth[\"Medium\"] = 1] = \"Medium\";\n    /**\n     * For `en-US`, `'MMMM d, y, h:mm:ss a z'`\n     * (Example: `June 15, 2015 at 9:03:01 AM GMT+1`)\n     */\n    FormatWidth[FormatWidth[\"Long\"] = 2] = \"Long\";\n    /**\n     * For `en-US`, `'EEEE, MMMM d, y, h:mm:ss a zzzz'`\n     * (Example: `Monday, June 15, 2015 at 9:03:01 AM GMT+01:00`)\n     */\n    FormatWidth[FormatWidth[\"Full\"] = 3] = \"Full\";\n})(FormatWidth || (FormatWidth = {}));\n/**\n * Symbols that can be used to replace placeholders in number patterns.\n * Examples are based on `en-US` values.\n *\n * @see {@link getLocaleNumberSymbol}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nvar NumberSymbol;\n(function (NumberSymbol) {\n    /**\n     * Decimal separator.\n     * For `en-US`, the dot character.\n     * Example: 2,345`.`67\n     */\n    NumberSymbol[NumberSymbol[\"Decimal\"] = 0] = \"Decimal\";\n    /**\n     * Grouping separator, typically for thousands.\n     * For `en-US`, the comma character.\n     * Example: 2`,`345.67\n     */\n    NumberSymbol[NumberSymbol[\"Group\"] = 1] = \"Group\";\n    /**\n     * List-item separator.\n     * Example: \"one, two, and three\"\n     */\n    NumberSymbol[NumberSymbol[\"List\"] = 2] = \"List\";\n    /**\n     * Sign for percentage (out of 100).\n     * Example: 23.4%\n     */\n    NumberSymbol[NumberSymbol[\"PercentSign\"] = 3] = \"PercentSign\";\n    /**\n     * Sign for positive numbers.\n     * Example: +23\n     */\n    NumberSymbol[NumberSymbol[\"PlusSign\"] = 4] = \"PlusSign\";\n    /**\n     * Sign for negative numbers.\n     * Example: -23\n     */\n    NumberSymbol[NumberSymbol[\"MinusSign\"] = 5] = \"MinusSign\";\n    /**\n     * Computer notation for exponential value (n times a power of 10).\n     * Example: 1.2E3\n     */\n    NumberSymbol[NumberSymbol[\"Exponential\"] = 6] = \"Exponential\";\n    /**\n     * Human-readable format of exponential.\n     * Example: 1.2x103\n     */\n    NumberSymbol[NumberSymbol[\"SuperscriptingExponent\"] = 7] = \"SuperscriptingExponent\";\n    /**\n     * Sign for permille (out of 1000).\n     * Example: 23.4‰\n     */\n    NumberSymbol[NumberSymbol[\"PerMille\"] = 8] = \"PerMille\";\n    /**\n     * Infinity, can be used with plus and minus.\n     * Example: ∞, +∞, -∞\n     */\n    NumberSymbol[NumberSymbol[\"Infinity\"] = 9] = \"Infinity\";\n    /**\n     * Not a number.\n     * Example: NaN\n     */\n    NumberSymbol[NumberSymbol[\"NaN\"] = 10] = \"NaN\";\n    /**\n     * Symbol used between time units.\n     * Example: 10:52\n     */\n    NumberSymbol[NumberSymbol[\"TimeSeparator\"] = 11] = \"TimeSeparator\";\n    /**\n     * Decimal separator for currency values (fallback to `Decimal`).\n     * Example: $2,345.67\n     */\n    NumberSymbol[NumberSymbol[\"CurrencyDecimal\"] = 12] = \"CurrencyDecimal\";\n    /**\n     * Group separator for currency values (fallback to `Group`).\n     * Example: $2,345.67\n     */\n    NumberSymbol[NumberSymbol[\"CurrencyGroup\"] = 13] = \"CurrencyGroup\";\n})(NumberSymbol || (NumberSymbol = {}));\n/**\n * The value for each day of the week, based on the `en-US` locale\n *\n * @publicApi\n */\nvar WeekDay;\n(function (WeekDay) {\n    WeekDay[WeekDay[\"Sunday\"] = 0] = \"Sunday\";\n    WeekDay[WeekDay[\"Monday\"] = 1] = \"Monday\";\n    WeekDay[WeekDay[\"Tuesday\"] = 2] = \"Tuesday\";\n    WeekDay[WeekDay[\"Wednesday\"] = 3] = \"Wednesday\";\n    WeekDay[WeekDay[\"Thursday\"] = 4] = \"Thursday\";\n    WeekDay[WeekDay[\"Friday\"] = 5] = \"Friday\";\n    WeekDay[WeekDay[\"Saturday\"] = 6] = \"Saturday\";\n})(WeekDay || (WeekDay = {}));\n/**\n * Retrieves the locale ID from the currently loaded locale.\n * The loaded locale could be, for example, a global one rather than a regional one.\n * @param locale A locale code, such as `fr-FR`.\n * @returns The locale code. For example, `fr`.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleId(locale) {\n    return ɵfindLocaleData(locale)[ɵLocaleDataIndex.LocaleId];\n}\n/**\n * Retrieves day period strings for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized period strings. For example, `[AM, PM]` for `en-US`.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDayPeriods(locale, formStyle, width) {\n    const data = ɵfindLocaleData(locale);\n    const amPmData = [\n        data[ɵLocaleDataIndex.DayPeriodsFormat], data[ɵLocaleDataIndex.DayPeriodsStandalone]\n    ];\n    const amPm = getLastDefinedValue(amPmData, formStyle);\n    return getLastDefinedValue(amPm, width);\n}\n/**\n * Retrieves days of the week for the given locale, using the Gregorian calendar.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized name strings.\n * For example,`[Sunday, Monday, ... Saturday]` for `en-US`.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDayNames(locale, formStyle, width) {\n    const data = ɵfindLocaleData(locale);\n    const daysData = [data[ɵLocaleDataIndex.DaysFormat], data[ɵLocaleDataIndex.DaysStandalone]];\n    const days = getLastDefinedValue(daysData, formStyle);\n    return getLastDefinedValue(days, width);\n}\n/**\n * Retrieves months of the year for the given locale, using the Gregorian calendar.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns An array of localized name strings.\n * For example,  `[January, February, ...]` for `en-US`.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleMonthNames(locale, formStyle, width) {\n    const data = ɵfindLocaleData(locale);\n    const monthsData = [data[ɵLocaleDataIndex.MonthsFormat], data[ɵLocaleDataIndex.MonthsStandalone]];\n    const months = getLastDefinedValue(monthsData, formStyle);\n    return getLastDefinedValue(months, width);\n}\n/**\n * Retrieves Gregorian-calendar eras for the given locale.\n * @param locale A locale code for the locale format rules to use.\n * @param width The required character width.\n\n * @returns An array of localized era strings.\n * For example, `[AD, BC]` for `en-US`.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleEraNames(locale, width) {\n    const data = ɵfindLocaleData(locale);\n    const erasData = data[ɵLocaleDataIndex.Eras];\n    return getLastDefinedValue(erasData, width);\n}\n/**\n * Retrieves the first day of the week for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns A day index number, using the 0-based week-day index for `en-US`\n * (Sunday = 0, Monday = 1, ...).\n * For example, for `fr-FR`, returns 1 to indicate that the first day is Monday.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleFirstDayOfWeek(locale) {\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.FirstDayOfWeek];\n}\n/**\n * Range of week days that are considered the week-end for the given locale.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The range of day values, `[startDay, endDay]`.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleWeekEndRange(locale) {\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.WeekendRange];\n}\n/**\n * Retrieves a localized date-value formatting string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formatting string.\n * @see {@link FormatWidth}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDateFormat(locale, width) {\n    const data = ɵfindLocaleData(locale);\n    return getLastDefinedValue(data[ɵLocaleDataIndex.DateFormat], width);\n}\n/**\n * Retrieves a localized time-value formatting string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formatting string.\n * @see {@link FormatWidth}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n\n * @publicApi\n */\nfunction getLocaleTimeFormat(locale, width) {\n    const data = ɵfindLocaleData(locale);\n    return getLastDefinedValue(data[ɵLocaleDataIndex.TimeFormat], width);\n}\n/**\n * Retrieves a localized date-time formatting string.\n *\n * @param locale A locale code for the locale format rules to use.\n * @param width The format type.\n * @returns The localized formatting string.\n * @see {@link FormatWidth}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleDateTimeFormat(locale, width) {\n    const data = ɵfindLocaleData(locale);\n    const dateTimeFormatData = data[ɵLocaleDataIndex.DateTimeFormat];\n    return getLastDefinedValue(dateTimeFormatData, width);\n}\n/**\n * Retrieves a localized number symbol that can be used to replace placeholders in number formats.\n * @param locale The locale code.\n * @param symbol The symbol to localize.\n * @returns The character for the localized symbol.\n * @see {@link NumberSymbol}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleNumberSymbol(locale, symbol) {\n    const data = ɵfindLocaleData(locale);\n    const res = data[ɵLocaleDataIndex.NumberSymbols][symbol];\n    if (typeof res === 'undefined') {\n        if (symbol === NumberSymbol.CurrencyDecimal) {\n            return data[ɵLocaleDataIndex.NumberSymbols][NumberSymbol.Decimal];\n        }\n        else if (symbol === NumberSymbol.CurrencyGroup) {\n            return data[ɵLocaleDataIndex.NumberSymbols][NumberSymbol.Group];\n        }\n    }\n    return res;\n}\n/**\n * Retrieves a number format for a given locale.\n *\n * Numbers are formatted using patterns, like `#,###.00`. For example, the pattern `#,###.00`\n * when used to format the number 12345.678 could result in \"12'345,678\". That would happen if the\n * grouping separator for your language is an apostrophe, and the decimal separator is a comma.\n *\n * <b>Important:</b> The characters `.` `,` `0` `#` (and others below) are special placeholders\n * that stand for the decimal separator, and so on, and are NOT real characters.\n * You must NOT \"translate\" the placeholders. For example, don't change `.` to `,` even though in\n * your language the decimal point is written with a comma. The symbols should be replaced by the\n * local equivalents, using the appropriate `NumberSymbol` for your language.\n *\n * Here are the special characters used in number patterns:\n *\n * | Symbol | Meaning |\n * |--------|---------|\n * | . | Replaced automatically by the character used for the decimal point. |\n * | , | Replaced by the \"grouping\" (thousands) separator. |\n * | 0 | Replaced by a digit (or zero if there aren't enough digits). |\n * | # | Replaced by a digit (or nothing if there aren't enough). |\n * | ¤ | Replaced by a currency symbol, such as $ or USD. |\n * | % | Marks a percent format. The % symbol may change position, but must be retained. |\n * | E | Marks a scientific format. The E symbol may change position, but must be retained. |\n * | ' | Special characters used as literal characters are quoted with ASCII single quotes. |\n *\n * @param locale A locale code for the locale format rules to use.\n * @param type The type of numeric value to be formatted (such as `Decimal` or `Currency`.)\n * @returns The localized format string.\n * @see {@link NumberFormatStyle}\n * @see [CLDR website](http://cldr.unicode.org/translation/number-patterns)\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleNumberFormat(locale, type) {\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.NumberFormats][type];\n}\n/**\n * Retrieves the symbol used to represent the currency for the main country\n * corresponding to a given locale. For example, '$' for `en-US`.\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The localized symbol character,\n * or `null` if the main country cannot be determined.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleCurrencySymbol(locale) {\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.CurrencySymbol] || null;\n}\n/**\n * Retrieves the name of the currency for the main country corresponding\n * to a given locale. For example, 'US Dollar' for `en-US`.\n * @param locale A locale code for the locale format rules to use.\n * @returns The currency name,\n * or `null` if the main country cannot be determined.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleCurrencyName(locale) {\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.CurrencyName] || null;\n}\n/**\n * Retrieves the default currency code for the given locale.\n *\n * The default is defined as the first currency which is still in use.\n *\n * @param locale The code of the locale whose currency code we want.\n * @returns The code of the default currency for the given locale.\n *\n * @publicApi\n */\nfunction getLocaleCurrencyCode(locale) {\n    return ɵgetLocaleCurrencyCode(locale);\n}\n/**\n * Retrieves the currency values for a given locale.\n * @param locale A locale code for the locale format rules to use.\n * @returns The currency values.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n */\nfunction getLocaleCurrencies(locale) {\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.Currencies];\n}\n/**\n * @alias core/ɵgetLocalePluralCase\n * @publicApi\n */\nconst getLocalePluralCase = ɵgetLocalePluralCase;\nfunction checkFullData(data) {\n    if (!data[ɵLocaleDataIndex.ExtraData]) {\n        throw new Error(`Missing extra locale data for the locale \"${data[ɵLocaleDataIndex\n            .LocaleId]}\". Use \"registerLocaleData\" to load new data. See the \"I18n guide\" on angular.io to know more.`);\n    }\n}\n/**\n * Retrieves locale-specific rules used to determine which day period to use\n * when more than one period is defined for a locale.\n *\n * There is a rule for each defined day period. The\n * first rule is applied to the first day period and so on.\n * Fall back to AM/PM when no rules are available.\n *\n * A rule can specify a period as time range, or as a single time value.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n-common-format-data-locale).\n *\n * @param locale A locale code for the locale format rules to use.\n * @returns The rules for the locale, a single time value or array of *from-time, to-time*,\n * or null if no periods are available.\n *\n * @see {@link getLocaleExtraDayPeriods}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleExtraDayPeriodRules(locale) {\n    const data = ɵfindLocaleData(locale);\n    checkFullData(data);\n    const rules = data[ɵLocaleDataIndex.ExtraData][2 /* ɵExtraLocaleDataIndex.ExtraDayPeriodsRules */] || [];\n    return rules.map((rule) => {\n        if (typeof rule === 'string') {\n            return extractTime(rule);\n        }\n        return [extractTime(rule[0]), extractTime(rule[1])];\n    });\n}\n/**\n * Retrieves locale-specific day periods, which indicate roughly how a day is broken up\n * in different languages.\n * For example, for `en-US`, periods are morning, noon, afternoon, evening, and midnight.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n-common-format-data-locale).\n *\n * @param locale A locale code for the locale format rules to use.\n * @param formStyle The required grammatical form.\n * @param width The required character width.\n * @returns The translated day-period strings.\n * @see {@link getLocaleExtraDayPeriodRules}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLocaleExtraDayPeriods(locale, formStyle, width) {\n    const data = ɵfindLocaleData(locale);\n    checkFullData(data);\n    const dayPeriodsData = [\n        data[ɵLocaleDataIndex.ExtraData][0 /* ɵExtraLocaleDataIndex.ExtraDayPeriodFormats */],\n        data[ɵLocaleDataIndex.ExtraData][1 /* ɵExtraLocaleDataIndex.ExtraDayPeriodStandalone */]\n    ];\n    const dayPeriods = getLastDefinedValue(dayPeriodsData, formStyle) || [];\n    return getLastDefinedValue(dayPeriods, width) || [];\n}\n/**\n * Retrieves the writing direction of a specified locale\n * @param locale A locale code for the locale format rules to use.\n * @publicApi\n * @returns 'rtl' or 'ltr'\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n */\nfunction getLocaleDirection(locale) {\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.Directionality];\n}\n/**\n * Retrieves the first value that is defined in an array, going backwards from an index position.\n *\n * To avoid repeating the same data (as when the \"format\" and \"standalone\" forms are the same)\n * add the first value to the locale data arrays, and add other values only if they are different.\n *\n * @param data The data array to retrieve from.\n * @param index A 0-based index into the array to start from.\n * @returns The value immediately before the given index position.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getLastDefinedValue(data, index) {\n    for (let i = index; i > -1; i--) {\n        if (typeof data[i] !== 'undefined') {\n            return data[i];\n        }\n    }\n    throw new Error('Locale data API: locale data undefined');\n}\n/**\n * Extracts the hours and minutes from a string like \"15:45\"\n */\nfunction extractTime(time) {\n    const [h, m] = time.split(':');\n    return { hours: +h, minutes: +m };\n}\n/**\n * Retrieves the currency symbol for a given currency code.\n *\n * For example, for the default `en-US` locale, the code `USD` can\n * be represented by the narrow symbol `$` or the wide symbol `US$`.\n *\n * @param code The currency code.\n * @param format The format, `wide` or `narrow`.\n * @param locale A locale code for the locale format rules to use.\n *\n * @returns The symbol, or the currency code if no symbol is available.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getCurrencySymbol(code, format, locale = 'en') {\n    const currency = getLocaleCurrencies(locale)[code] || CURRENCIES_EN[code] || [];\n    const symbolNarrow = currency[1 /* ɵCurrencyIndex.SymbolNarrow */];\n    if (format === 'narrow' && typeof symbolNarrow === 'string') {\n        return symbolNarrow;\n    }\n    return currency[0 /* ɵCurrencyIndex.Symbol */] || code;\n}\n// Most currencies have cents, that's why the default is 2\nconst DEFAULT_NB_OF_CURRENCY_DIGITS = 2;\n/**\n * Reports the number of decimal digits for a given currency.\n * The value depends upon the presence of cents in that particular currency.\n *\n * @param code The currency code.\n * @returns The number of decimal digits, typically 0 or 2.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction getNumberOfCurrencyDigits(code) {\n    let digits;\n    const currency = CURRENCIES_EN[code];\n    if (currency) {\n        digits = currency[2 /* ɵCurrencyIndex.NbOfDigits */];\n    }\n    return typeof digits === 'number' ? digits : DEFAULT_NB_OF_CURRENCY_DIGITS;\n}\n\nconst ISO8601_DATE_REGEX = /^(\\d{4,})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n//    1        2       3         4          5          6          7          8  9     10      11\nconst NAMED_FORMATS = {};\nconst DATE_FORMATS_SPLIT = /((?:[^BEGHLMOSWYZabcdhmswyz']+)|(?:'(?:[^']|'')*')|(?:G{1,5}|y{1,4}|Y{1,4}|M{1,5}|L{1,5}|w{1,2}|W{1}|d{1,2}|E{1,6}|c{1,6}|a{1,5}|b{1,5}|B{1,5}|h{1,2}|H{1,2}|m{1,2}|s{1,2}|S{1,3}|z{1,4}|Z{1,5}|O{1,4}))([\\s\\S]*)/;\nvar ZoneWidth;\n(function (ZoneWidth) {\n    ZoneWidth[ZoneWidth[\"Short\"] = 0] = \"Short\";\n    ZoneWidth[ZoneWidth[\"ShortGMT\"] = 1] = \"ShortGMT\";\n    ZoneWidth[ZoneWidth[\"Long\"] = 2] = \"Long\";\n    ZoneWidth[ZoneWidth[\"Extended\"] = 3] = \"Extended\";\n})(ZoneWidth || (ZoneWidth = {}));\nvar DateType;\n(function (DateType) {\n    DateType[DateType[\"FullYear\"] = 0] = \"FullYear\";\n    DateType[DateType[\"Month\"] = 1] = \"Month\";\n    DateType[DateType[\"Date\"] = 2] = \"Date\";\n    DateType[DateType[\"Hours\"] = 3] = \"Hours\";\n    DateType[DateType[\"Minutes\"] = 4] = \"Minutes\";\n    DateType[DateType[\"Seconds\"] = 5] = \"Seconds\";\n    DateType[DateType[\"FractionalSeconds\"] = 6] = \"FractionalSeconds\";\n    DateType[DateType[\"Day\"] = 7] = \"Day\";\n})(DateType || (DateType = {}));\nvar TranslationType;\n(function (TranslationType) {\n    TranslationType[TranslationType[\"DayPeriods\"] = 0] = \"DayPeriods\";\n    TranslationType[TranslationType[\"Days\"] = 1] = \"Days\";\n    TranslationType[TranslationType[\"Months\"] = 2] = \"Months\";\n    TranslationType[TranslationType[\"Eras\"] = 3] = \"Eras\";\n})(TranslationType || (TranslationType = {}));\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a date according to locale rules.\n *\n * @param value The date to format, as a Date, or a number (milliseconds since UTC epoch)\n * or an [ISO date-time string](https://www.w3.org/TR/NOTE-datetime).\n * @param format The date-time components to include. See `DatePipe` for details.\n * @param locale A locale code for the locale format rules to use.\n * @param timezone The time zone. A time zone offset from GMT (such as `'+0430'`),\n * or a standard UTC/GMT or continental US time zone abbreviation.\n * If not specified, uses host system settings.\n *\n * @returns The formatted date string.\n *\n * @see {@link DatePipe}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction formatDate(value, format, locale, timezone) {\n    let date = toDate(value);\n    const namedFormat = getNamedFormat(locale, format);\n    format = namedFormat || format;\n    let parts = [];\n    let match;\n    while (format) {\n        match = DATE_FORMATS_SPLIT.exec(format);\n        if (match) {\n            parts = parts.concat(match.slice(1));\n            const part = parts.pop();\n            if (!part) {\n                break;\n            }\n            format = part;\n        }\n        else {\n            parts.push(format);\n            break;\n        }\n    }\n    let dateTimezoneOffset = date.getTimezoneOffset();\n    if (timezone) {\n        dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n        date = convertTimezoneToLocal(date, timezone, true);\n    }\n    let text = '';\n    parts.forEach(value => {\n        const dateFormatter = getDateFormatter(value);\n        text += dateFormatter ? dateFormatter(date, locale, dateTimezoneOffset) :\n            value === '\\'\\'' ? '\\'' :\n                value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n    });\n    return text;\n}\n/**\n * Create a new Date object with the given date value, and the time set to midnight.\n *\n * We cannot use `new Date(year, month, date)` because it maps years between 0 and 99 to 1900-1999.\n * See: https://github.com/angular/angular/issues/40377\n *\n * Note that this function returns a Date object whose time is midnight in the current locale's\n * timezone. In the future we might want to change this to be midnight in UTC, but this would be a\n * considerable breaking change.\n */\nfunction createDate(year, month, date) {\n    // The `newDate` is set to midnight (UTC) on January 1st 1970.\n    // - In PST this will be December 31st 1969 at 4pm.\n    // - In GMT this will be January 1st 1970 at 1am.\n    // Note that they even have different years, dates and months!\n    const newDate = new Date(0);\n    // `setFullYear()` allows years like 0001 to be set correctly. This function does not\n    // change the internal time of the date.\n    // Consider calling `setFullYear(2019, 8, 20)` (September 20, 2019).\n    // - In PST this will now be September 20, 2019 at 4pm\n    // - In GMT this will now be September 20, 2019 at 1am\n    newDate.setFullYear(year, month, date);\n    // We want the final date to be at local midnight, so we reset the time.\n    // - In PST this will now be September 20, 2019 at 12am\n    // - In GMT this will now be September 20, 2019 at 12am\n    newDate.setHours(0, 0, 0);\n    return newDate;\n}\nfunction getNamedFormat(locale, format) {\n    const localeId = getLocaleId(locale);\n    NAMED_FORMATS[localeId] = NAMED_FORMATS[localeId] || {};\n    if (NAMED_FORMATS[localeId][format]) {\n        return NAMED_FORMATS[localeId][format];\n    }\n    let formatValue = '';\n    switch (format) {\n        case 'shortDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Short);\n            break;\n        case 'mediumDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Medium);\n            break;\n        case 'longDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Long);\n            break;\n        case 'fullDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Full);\n            break;\n        case 'shortTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Short);\n            break;\n        case 'mediumTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Medium);\n            break;\n        case 'longTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Long);\n            break;\n        case 'fullTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Full);\n            break;\n        case 'short':\n            const shortTime = getNamedFormat(locale, 'shortTime');\n            const shortDate = getNamedFormat(locale, 'shortDate');\n            formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Short), [shortTime, shortDate]);\n            break;\n        case 'medium':\n            const mediumTime = getNamedFormat(locale, 'mediumTime');\n            const mediumDate = getNamedFormat(locale, 'mediumDate');\n            formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Medium), [mediumTime, mediumDate]);\n            break;\n        case 'long':\n            const longTime = getNamedFormat(locale, 'longTime');\n            const longDate = getNamedFormat(locale, 'longDate');\n            formatValue =\n                formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Long), [longTime, longDate]);\n            break;\n        case 'full':\n            const fullTime = getNamedFormat(locale, 'fullTime');\n            const fullDate = getNamedFormat(locale, 'fullDate');\n            formatValue =\n                formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Full), [fullTime, fullDate]);\n            break;\n    }\n    if (formatValue) {\n        NAMED_FORMATS[localeId][format] = formatValue;\n    }\n    return formatValue;\n}\nfunction formatDateTime(str, opt_values) {\n    if (opt_values) {\n        str = str.replace(/\\{([^}]+)}/g, function (match, key) {\n            return (opt_values != null && key in opt_values) ? opt_values[key] : match;\n        });\n    }\n    return str;\n}\nfunction padNumber(num, digits, minusSign = '-', trim, negWrap) {\n    let neg = '';\n    if (num < 0 || (negWrap && num <= 0)) {\n        if (negWrap) {\n            num = -num + 1;\n        }\n        else {\n            num = -num;\n            neg = minusSign;\n        }\n    }\n    let strNum = String(num);\n    while (strNum.length < digits) {\n        strNum = '0' + strNum;\n    }\n    if (trim) {\n        strNum = strNum.slice(strNum.length - digits);\n    }\n    return neg + strNum;\n}\nfunction formatFractionalSeconds(milliseconds, digits) {\n    const strMs = padNumber(milliseconds, 3);\n    return strMs.substring(0, digits);\n}\n/**\n * Returns a date formatter that transforms a date into its locale digit representation\n */\nfunction dateGetter(name, size, offset = 0, trim = false, negWrap = false) {\n    return function (date, locale) {\n        let part = getDatePart(name, date);\n        if (offset > 0 || part > -offset) {\n            part += offset;\n        }\n        if (name === DateType.Hours) {\n            if (part === 0 && offset === -12) {\n                part = 12;\n            }\n        }\n        else if (name === DateType.FractionalSeconds) {\n            return formatFractionalSeconds(part, size);\n        }\n        const localeMinus = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n        return padNumber(part, size, localeMinus, trim, negWrap);\n    };\n}\nfunction getDatePart(part, date) {\n    switch (part) {\n        case DateType.FullYear:\n            return date.getFullYear();\n        case DateType.Month:\n            return date.getMonth();\n        case DateType.Date:\n            return date.getDate();\n        case DateType.Hours:\n            return date.getHours();\n        case DateType.Minutes:\n            return date.getMinutes();\n        case DateType.Seconds:\n            return date.getSeconds();\n        case DateType.FractionalSeconds:\n            return date.getMilliseconds();\n        case DateType.Day:\n            return date.getDay();\n        default:\n            throw new Error(`Unknown DateType value \"${part}\".`);\n    }\n}\n/**\n * Returns a date formatter that transforms a date into its locale string representation\n */\nfunction dateStrGetter(name, width, form = FormStyle.Format, extended = false) {\n    return function (date, locale) {\n        return getDateTranslation(date, locale, name, width, form, extended);\n    };\n}\n/**\n * Returns the locale translation of a date for a given form, type and width\n */\nfunction getDateTranslation(date, locale, name, width, form, extended) {\n    switch (name) {\n        case TranslationType.Months:\n            return getLocaleMonthNames(locale, form, width)[date.getMonth()];\n        case TranslationType.Days:\n            return getLocaleDayNames(locale, form, width)[date.getDay()];\n        case TranslationType.DayPeriods:\n            const currentHours = date.getHours();\n            const currentMinutes = date.getMinutes();\n            if (extended) {\n                const rules = getLocaleExtraDayPeriodRules(locale);\n                const dayPeriods = getLocaleExtraDayPeriods(locale, form, width);\n                const index = rules.findIndex(rule => {\n                    if (Array.isArray(rule)) {\n                        // morning, afternoon, evening, night\n                        const [from, to] = rule;\n                        const afterFrom = currentHours >= from.hours && currentMinutes >= from.minutes;\n                        const beforeTo = (currentHours < to.hours ||\n                            (currentHours === to.hours && currentMinutes < to.minutes));\n                        // We must account for normal rules that span a period during the day (e.g. 6am-9am)\n                        // where `from` is less (earlier) than `to`. But also rules that span midnight (e.g.\n                        // 10pm - 5am) where `from` is greater (later!) than `to`.\n                        //\n                        // In the first case the current time must be BOTH after `from` AND before `to`\n                        // (e.g. 8am is after 6am AND before 10am).\n                        //\n                        // In the second case the current time must be EITHER after `from` OR before `to`\n                        // (e.g. 4am is before 5am but not after 10pm; and 11pm is not before 5am but it is\n                        // after 10pm).\n                        if (from.hours < to.hours) {\n                            if (afterFrom && beforeTo) {\n                                return true;\n                            }\n                        }\n                        else if (afterFrom || beforeTo) {\n                            return true;\n                        }\n                    }\n                    else { // noon or midnight\n                        if (rule.hours === currentHours && rule.minutes === currentMinutes) {\n                            return true;\n                        }\n                    }\n                    return false;\n                });\n                if (index !== -1) {\n                    return dayPeriods[index];\n                }\n            }\n            // if no rules for the day periods, we use am/pm by default\n            return getLocaleDayPeriods(locale, form, width)[currentHours < 12 ? 0 : 1];\n        case TranslationType.Eras:\n            return getLocaleEraNames(locale, width)[date.getFullYear() <= 0 ? 0 : 1];\n        default:\n            // This default case is not needed by TypeScript compiler, as the switch is exhaustive.\n            // However Closure Compiler does not understand that and reports an error in typed mode.\n            // The `throw new Error` below works around the problem, and the unexpected: never variable\n            // makes sure tsc still checks this code is unreachable.\n            const unexpected = name;\n            throw new Error(`unexpected translation type ${unexpected}`);\n    }\n}\n/**\n * Returns a date formatter that transforms a date and an offset into a timezone with ISO8601 or\n * GMT format depending on the width (eg: short = +0430, short:GMT = GMT+4, long = GMT+04:30,\n * extended = +04:30)\n */\nfunction timeZoneGetter(width) {\n    return function (date, locale, offset) {\n        const zone = -1 * offset;\n        const minusSign = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n        const hours = zone > 0 ? Math.floor(zone / 60) : Math.ceil(zone / 60);\n        switch (width) {\n            case ZoneWidth.Short:\n                return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) +\n                    padNumber(Math.abs(zone % 60), 2, minusSign);\n            case ZoneWidth.ShortGMT:\n                return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 1, minusSign);\n            case ZoneWidth.Long:\n                return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n                    padNumber(Math.abs(zone % 60), 2, minusSign);\n            case ZoneWidth.Extended:\n                if (offset === 0) {\n                    return 'Z';\n                }\n                else {\n                    return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n                        padNumber(Math.abs(zone % 60), 2, minusSign);\n                }\n            default:\n                throw new Error(`Unknown zone width \"${width}\"`);\n        }\n    };\n}\nconst JANUARY = 0;\nconst THURSDAY = 4;\nfunction getFirstThursdayOfYear(year) {\n    const firstDayOfYear = createDate(year, JANUARY, 1).getDay();\n    return createDate(year, 0, 1 + ((firstDayOfYear <= THURSDAY) ? THURSDAY : THURSDAY + 7) - firstDayOfYear);\n}\nfunction getThursdayThisWeek(datetime) {\n    return createDate(datetime.getFullYear(), datetime.getMonth(), datetime.getDate() + (THURSDAY - datetime.getDay()));\n}\nfunction weekGetter(size, monthBased = false) {\n    return function (date, locale) {\n        let result;\n        if (monthBased) {\n            const nbDaysBefore1stDayOfMonth = new Date(date.getFullYear(), date.getMonth(), 1).getDay() - 1;\n            const today = date.getDate();\n            result = 1 + Math.floor((today + nbDaysBefore1stDayOfMonth) / 7);\n        }\n        else {\n            const thisThurs = getThursdayThisWeek(date);\n            // Some days of a year are part of next year according to ISO 8601.\n            // Compute the firstThurs from the year of this week's Thursday\n            const firstThurs = getFirstThursdayOfYear(thisThurs.getFullYear());\n            const diff = thisThurs.getTime() - firstThurs.getTime();\n            result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n        }\n        return padNumber(result, size, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    };\n}\n/**\n * Returns a date formatter that provides the week-numbering year for the input date.\n */\nfunction weekNumberingYearGetter(size, trim = false) {\n    return function (date, locale) {\n        const thisThurs = getThursdayThisWeek(date);\n        const weekNumberingYear = thisThurs.getFullYear();\n        return padNumber(weekNumberingYear, size, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign), trim);\n    };\n}\nconst DATE_FORMATS = {};\n// Based on CLDR formats:\n// See complete list: http://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table\n// See also explanations: http://cldr.unicode.org/translation/date-time\n// TODO(ocombe): support all missing cldr formats: U, Q, D, F, e, j, J, C, A, v, V, X, x\nfunction getDateFormatter(format) {\n    if (DATE_FORMATS[format]) {\n        return DATE_FORMATS[format];\n    }\n    let formatter;\n    switch (format) {\n        // Era name (AD/BC)\n        case 'G':\n        case 'GG':\n        case 'GGG':\n            formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Abbreviated);\n            break;\n        case 'GGGG':\n            formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Wide);\n            break;\n        case 'GGGGG':\n            formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Narrow);\n            break;\n        // 1 digit representation of the year, e.g. (AD 1 => 1, AD 199 => 199)\n        case 'y':\n            formatter = dateGetter(DateType.FullYear, 1, 0, false, true);\n            break;\n        // 2 digit representation of the year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n        case 'yy':\n            formatter = dateGetter(DateType.FullYear, 2, 0, true, true);\n            break;\n        // 3 digit representation of the year, padded (000-999). (e.g. AD 2001 => 01, AD 2010 => 10)\n        case 'yyy':\n            formatter = dateGetter(DateType.FullYear, 3, 0, false, true);\n            break;\n        // 4 digit representation of the year (e.g. AD 1 => 0001, AD 2010 => 2010)\n        case 'yyyy':\n            formatter = dateGetter(DateType.FullYear, 4, 0, false, true);\n            break;\n        // 1 digit representation of the week-numbering year, e.g. (AD 1 => 1, AD 199 => 199)\n        case 'Y':\n            formatter = weekNumberingYearGetter(1);\n            break;\n        // 2 digit representation of the week-numbering year, padded (00-99). (e.g. AD 2001 => 01, AD\n        // 2010 => 10)\n        case 'YY':\n            formatter = weekNumberingYearGetter(2, true);\n            break;\n        // 3 digit representation of the week-numbering year, padded (000-999). (e.g. AD 1 => 001, AD\n        // 2010 => 2010)\n        case 'YYY':\n            formatter = weekNumberingYearGetter(3);\n            break;\n        // 4 digit representation of the week-numbering year (e.g. AD 1 => 0001, AD 2010 => 2010)\n        case 'YYYY':\n            formatter = weekNumberingYearGetter(4);\n            break;\n        // Month of the year (1-12), numeric\n        case 'M':\n        case 'L':\n            formatter = dateGetter(DateType.Month, 1, 1);\n            break;\n        case 'MM':\n        case 'LL':\n            formatter = dateGetter(DateType.Month, 2, 1);\n            break;\n        // Month of the year (January, ...), string, format\n        case 'MMM':\n            formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated);\n            break;\n        case 'MMMM':\n            formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Wide);\n            break;\n        case 'MMMMM':\n            formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Narrow);\n            break;\n        // Month of the year (January, ...), string, standalone\n        case 'LLL':\n            formatter =\n                dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated, FormStyle.Standalone);\n            break;\n        case 'LLLL':\n            formatter =\n                dateStrGetter(TranslationType.Months, TranslationWidth.Wide, FormStyle.Standalone);\n            break;\n        case 'LLLLL':\n            formatter =\n                dateStrGetter(TranslationType.Months, TranslationWidth.Narrow, FormStyle.Standalone);\n            break;\n        // Week of the year (1, ... 52)\n        case 'w':\n            formatter = weekGetter(1);\n            break;\n        case 'ww':\n            formatter = weekGetter(2);\n            break;\n        // Week of the month (1, ...)\n        case 'W':\n            formatter = weekGetter(1, true);\n            break;\n        // Day of the month (1-31)\n        case 'd':\n            formatter = dateGetter(DateType.Date, 1);\n            break;\n        case 'dd':\n            formatter = dateGetter(DateType.Date, 2);\n            break;\n        // Day of the Week StandAlone (1, 1, Mon, Monday, M, Mo)\n        case 'c':\n        case 'cc':\n            formatter = dateGetter(DateType.Day, 1);\n            break;\n        case 'ccc':\n            formatter =\n                dateStrGetter(TranslationType.Days, TranslationWidth.Abbreviated, FormStyle.Standalone);\n            break;\n        case 'cccc':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Wide, FormStyle.Standalone);\n            break;\n        case 'ccccc':\n            formatter =\n                dateStrGetter(TranslationType.Days, TranslationWidth.Narrow, FormStyle.Standalone);\n            break;\n        case 'cccccc':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Short, FormStyle.Standalone);\n            break;\n        // Day of the Week\n        case 'E':\n        case 'EE':\n        case 'EEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Abbreviated);\n            break;\n        case 'EEEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Wide);\n            break;\n        case 'EEEEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Narrow);\n            break;\n        case 'EEEEEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Short);\n            break;\n        // Generic period of the day (am-pm)\n        case 'a':\n        case 'aa':\n        case 'aaa':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated);\n            break;\n        case 'aaaa':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide);\n            break;\n        case 'aaaaa':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow);\n            break;\n        // Extended period of the day (midnight, at night, ...), standalone\n        case 'b':\n        case 'bb':\n        case 'bbb':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Standalone, true);\n            break;\n        case 'bbbb':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Standalone, true);\n            break;\n        case 'bbbbb':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Standalone, true);\n            break;\n        // Extended period of the day (midnight, night, ...), standalone\n        case 'B':\n        case 'BB':\n        case 'BBB':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Format, true);\n            break;\n        case 'BBBB':\n            formatter =\n                dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Format, true);\n            break;\n        case 'BBBBB':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Format, true);\n            break;\n        // Hour in AM/PM, (1-12)\n        case 'h':\n            formatter = dateGetter(DateType.Hours, 1, -12);\n            break;\n        case 'hh':\n            formatter = dateGetter(DateType.Hours, 2, -12);\n            break;\n        // Hour of the day (0-23)\n        case 'H':\n            formatter = dateGetter(DateType.Hours, 1);\n            break;\n        // Hour in day, padded (00-23)\n        case 'HH':\n            formatter = dateGetter(DateType.Hours, 2);\n            break;\n        // Minute of the hour (0-59)\n        case 'm':\n            formatter = dateGetter(DateType.Minutes, 1);\n            break;\n        case 'mm':\n            formatter = dateGetter(DateType.Minutes, 2);\n            break;\n        // Second of the minute (0-59)\n        case 's':\n            formatter = dateGetter(DateType.Seconds, 1);\n            break;\n        case 'ss':\n            formatter = dateGetter(DateType.Seconds, 2);\n            break;\n        // Fractional second\n        case 'S':\n            formatter = dateGetter(DateType.FractionalSeconds, 1);\n            break;\n        case 'SS':\n            formatter = dateGetter(DateType.FractionalSeconds, 2);\n            break;\n        case 'SSS':\n            formatter = dateGetter(DateType.FractionalSeconds, 3);\n            break;\n        // Timezone ISO8601 short format (-0430)\n        case 'Z':\n        case 'ZZ':\n        case 'ZZZ':\n            formatter = timeZoneGetter(ZoneWidth.Short);\n            break;\n        // Timezone ISO8601 extended format (-04:30)\n        case 'ZZZZZ':\n            formatter = timeZoneGetter(ZoneWidth.Extended);\n            break;\n        // Timezone GMT short format (GMT+4)\n        case 'O':\n        case 'OO':\n        case 'OOO':\n        // Should be location, but fallback to format O instead because we don't have the data yet\n        case 'z':\n        case 'zz':\n        case 'zzz':\n            formatter = timeZoneGetter(ZoneWidth.ShortGMT);\n            break;\n        // Timezone GMT long format (GMT+0430)\n        case 'OOOO':\n        case 'ZZZZ':\n        // Should be location, but fallback to format O instead because we don't have the data yet\n        case 'zzzz':\n            formatter = timeZoneGetter(ZoneWidth.Long);\n            break;\n        default:\n            return null;\n    }\n    DATE_FORMATS[format] = formatter;\n    return formatter;\n}\nfunction timezoneToOffset(timezone, fallback) {\n    // Support: IE 11 only, Edge 13-15+\n    // IE/Edge do not \"understand\" colon (`:`) in timezone\n    timezone = timezone.replace(/:/g, '');\n    const requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n    return isNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\nfunction addDateMinutes(date, minutes) {\n    date = new Date(date.getTime());\n    date.setMinutes(date.getMinutes() + minutes);\n    return date;\n}\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n    const reverseValue = reverse ? -1 : 1;\n    const dateTimezoneOffset = date.getTimezoneOffset();\n    const timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n    return addDateMinutes(date, reverseValue * (timezoneOffset - dateTimezoneOffset));\n}\n/**\n * Converts a value to date.\n *\n * Supported input formats:\n * - `Date`\n * - number: timestamp\n * - string: numeric (e.g. \"1234\"), ISO and date strings in a format supported by\n *   [Date.parse()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse).\n *   Note: ISO strings without time return a date without timeoffset.\n *\n * Throws if unable to convert to a date.\n */\nfunction toDate(value) {\n    if (isDate(value)) {\n        return value;\n    }\n    if (typeof value === 'number' && !isNaN(value)) {\n        return new Date(value);\n    }\n    if (typeof value === 'string') {\n        value = value.trim();\n        if (/^(\\d{4}(-\\d{1,2}(-\\d{1,2})?)?)$/.test(value)) {\n            /* For ISO Strings without time the day, month and year must be extracted from the ISO String\n            before Date creation to avoid time offset and errors in the new Date.\n            If we only replace '-' with ',' in the ISO String (\"2015,01,01\"), and try to create a new\n            date, some browsers (e.g. IE 9) will throw an invalid Date error.\n            If we leave the '-' (\"2015-01-01\") and try to create a new Date(\"2015-01-01\") the timeoffset\n            is applied.\n            Note: ISO months are 0 for January, 1 for February, ... */\n            const [y, m = 1, d = 1] = value.split('-').map((val) => +val);\n            return createDate(y, m - 1, d);\n        }\n        const parsedNb = parseFloat(value);\n        // any string that only contains numbers, like \"1234\" but not like \"1234hello\"\n        if (!isNaN(value - parsedNb)) {\n            return new Date(parsedNb);\n        }\n        let match;\n        if (match = value.match(ISO8601_DATE_REGEX)) {\n            return isoStringToDate(match);\n        }\n    }\n    const date = new Date(value);\n    if (!isDate(date)) {\n        throw new Error(`Unable to convert \"${value}\" into a date`);\n    }\n    return date;\n}\n/**\n * Converts a date in ISO8601 to a Date.\n * Used instead of `Date.parse` because of browser discrepancies.\n */\nfunction isoStringToDate(match) {\n    const date = new Date(0);\n    let tzHour = 0;\n    let tzMin = 0;\n    // match[8] means that the string contains \"Z\" (UTC) or a timezone like \"+01:00\" or \"+0100\"\n    const dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear;\n    const timeSetter = match[8] ? date.setUTCHours : date.setHours;\n    // if there is a timezone defined like \"+01:00\" or \"+0100\"\n    if (match[9]) {\n        tzHour = Number(match[9] + match[10]);\n        tzMin = Number(match[9] + match[11]);\n    }\n    dateSetter.call(date, Number(match[1]), Number(match[2]) - 1, Number(match[3]));\n    const h = Number(match[4] || 0) - tzHour;\n    const m = Number(match[5] || 0) - tzMin;\n    const s = Number(match[6] || 0);\n    // The ECMAScript specification (https://www.ecma-international.org/ecma-262/5.1/#sec-15.9.1.11)\n    // defines that `DateTime` milliseconds should always be rounded down, so that `999.9ms`\n    // becomes `999ms`.\n    const ms = Math.floor(parseFloat('0.' + (match[7] || 0)) * 1000);\n    timeSetter.call(date, h, m, s, ms);\n    return date;\n}\nfunction isDate(value) {\n    return value instanceof Date && !isNaN(value.valueOf());\n}\n\nconst NUMBER_FORMAT_REGEXP = /^(\\d+)?\\.((\\d+)(-(\\d+))?)?$/;\nconst MAX_DIGITS = 22;\nconst DECIMAL_SEP = '.';\nconst ZERO_CHAR = '0';\nconst PATTERN_SEP = ';';\nconst GROUP_SEP = ',';\nconst DIGIT_CHAR = '#';\nconst CURRENCY_CHAR = '¤';\nconst PERCENT_CHAR = '%';\n/**\n * Transforms a number to a locale string based on a style and a format.\n */\nfunction formatNumberToLocaleString(value, pattern, locale, groupSymbol, decimalSymbol, digitsInfo, isPercent = false) {\n    let formattedText = '';\n    let isZero = false;\n    if (!isFinite(value)) {\n        formattedText = getLocaleNumberSymbol(locale, NumberSymbol.Infinity);\n    }\n    else {\n        let parsedNumber = parseNumber(value);\n        if (isPercent) {\n            parsedNumber = toPercent(parsedNumber);\n        }\n        let minInt = pattern.minInt;\n        let minFraction = pattern.minFrac;\n        let maxFraction = pattern.maxFrac;\n        if (digitsInfo) {\n            const parts = digitsInfo.match(NUMBER_FORMAT_REGEXP);\n            if (parts === null) {\n                throw new Error(`${digitsInfo} is not a valid digit info`);\n            }\n            const minIntPart = parts[1];\n            const minFractionPart = parts[3];\n            const maxFractionPart = parts[5];\n            if (minIntPart != null) {\n                minInt = parseIntAutoRadix(minIntPart);\n            }\n            if (minFractionPart != null) {\n                minFraction = parseIntAutoRadix(minFractionPart);\n            }\n            if (maxFractionPart != null) {\n                maxFraction = parseIntAutoRadix(maxFractionPart);\n            }\n            else if (minFractionPart != null && minFraction > maxFraction) {\n                maxFraction = minFraction;\n            }\n        }\n        roundNumber(parsedNumber, minFraction, maxFraction);\n        let digits = parsedNumber.digits;\n        let integerLen = parsedNumber.integerLen;\n        const exponent = parsedNumber.exponent;\n        let decimals = [];\n        isZero = digits.every(d => !d);\n        // pad zeros for small numbers\n        for (; integerLen < minInt; integerLen++) {\n            digits.unshift(0);\n        }\n        // pad zeros for small numbers\n        for (; integerLen < 0; integerLen++) {\n            digits.unshift(0);\n        }\n        // extract decimals digits\n        if (integerLen > 0) {\n            decimals = digits.splice(integerLen, digits.length);\n        }\n        else {\n            decimals = digits;\n            digits = [0];\n        }\n        // format the integer digits with grouping separators\n        const groups = [];\n        if (digits.length >= pattern.lgSize) {\n            groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n        }\n        while (digits.length > pattern.gSize) {\n            groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n        }\n        if (digits.length) {\n            groups.unshift(digits.join(''));\n        }\n        formattedText = groups.join(getLocaleNumberSymbol(locale, groupSymbol));\n        // append the decimal digits\n        if (decimals.length) {\n            formattedText += getLocaleNumberSymbol(locale, decimalSymbol) + decimals.join('');\n        }\n        if (exponent) {\n            formattedText += getLocaleNumberSymbol(locale, NumberSymbol.Exponential) + '+' + exponent;\n        }\n    }\n    if (value < 0 && !isZero) {\n        formattedText = pattern.negPre + formattedText + pattern.negSuf;\n    }\n    else {\n        formattedText = pattern.posPre + formattedText + pattern.posSuf;\n    }\n    return formattedText;\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as currency using locale rules.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param currency A string containing the currency symbol or its name,\n * such as \"$\" or \"Canadian Dollar\". Used in output string, but does not affect the operation\n * of the function.\n * @param currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217)\n * currency code, such as `USD` for the US dollar and `EUR` for the euro.\n * Used to determine the number of digits in the decimal part.\n * @param digitsInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted currency value.\n *\n * @see {@link formatNumber}\n * @see {@link DecimalPipe}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction formatCurrency(value, locale, currency, currencyCode, digitsInfo) {\n    const format = getLocaleNumberFormat(locale, NumberFormatStyle.Currency);\n    const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    pattern.minFrac = getNumberOfCurrencyDigits(currencyCode);\n    pattern.maxFrac = pattern.minFrac;\n    const res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.CurrencyGroup, NumberSymbol.CurrencyDecimal, digitsInfo);\n    return res\n        .replace(CURRENCY_CHAR, currency)\n        // if we have 2 time the currency character, the second one is ignored\n        .replace(CURRENCY_CHAR, '')\n        // If there is a spacing between currency character and the value and\n        // the currency character is suppressed by passing an empty string, the\n        // spacing character would remain as part of the string. Then we\n        // should remove it.\n        .trim();\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as a percentage according to locale rules.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param digitsInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted percentage value.\n *\n * @see {@link formatNumber}\n * @see {@link DecimalPipe}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n * @publicApi\n *\n */\nfunction formatPercent(value, locale, digitsInfo) {\n    const format = getLocaleNumberFormat(locale, NumberFormatStyle.Percent);\n    const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    const res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo, true);\n    return res.replace(new RegExp(PERCENT_CHAR, 'g'), getLocaleNumberSymbol(locale, NumberSymbol.PercentSign));\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a number as text, with group sizing, separator, and other\n * parameters based on the locale.\n *\n * @param value The number to format.\n * @param locale A locale code for the locale format rules to use.\n * @param digitsInfo Decimal representation options, specified by a string in the following format:\n * `{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}`. See `DecimalPipe` for more details.\n *\n * @returns The formatted text string.\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n *\n * @publicApi\n */\nfunction formatNumber(value, locale, digitsInfo) {\n    const format = getLocaleNumberFormat(locale, NumberFormatStyle.Decimal);\n    const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    return formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo);\n}\nfunction parseNumberFormat(format, minusSign = '-') {\n    const p = {\n        minInt: 1,\n        minFrac: 0,\n        maxFrac: 0,\n        posPre: '',\n        posSuf: '',\n        negPre: '',\n        negSuf: '',\n        gSize: 0,\n        lgSize: 0\n    };\n    const patternParts = format.split(PATTERN_SEP);\n    const positive = patternParts[0];\n    const negative = patternParts[1];\n    const positiveParts = positive.indexOf(DECIMAL_SEP) !== -1 ?\n        positive.split(DECIMAL_SEP) :\n        [\n            positive.substring(0, positive.lastIndexOf(ZERO_CHAR) + 1),\n            positive.substring(positive.lastIndexOf(ZERO_CHAR) + 1)\n        ], integer = positiveParts[0], fraction = positiveParts[1] || '';\n    p.posPre = integer.substring(0, integer.indexOf(DIGIT_CHAR));\n    for (let i = 0; i < fraction.length; i++) {\n        const ch = fraction.charAt(i);\n        if (ch === ZERO_CHAR) {\n            p.minFrac = p.maxFrac = i + 1;\n        }\n        else if (ch === DIGIT_CHAR) {\n            p.maxFrac = i + 1;\n        }\n        else {\n            p.posSuf += ch;\n        }\n    }\n    const groups = integer.split(GROUP_SEP);\n    p.gSize = groups[1] ? groups[1].length : 0;\n    p.lgSize = (groups[2] || groups[1]) ? (groups[2] || groups[1]).length : 0;\n    if (negative) {\n        const trunkLen = positive.length - p.posPre.length - p.posSuf.length, pos = negative.indexOf(DIGIT_CHAR);\n        p.negPre = negative.substring(0, pos).replace(/'/g, '');\n        p.negSuf = negative.slice(pos + trunkLen).replace(/'/g, '');\n    }\n    else {\n        p.negPre = minusSign + p.posPre;\n        p.negSuf = p.posSuf;\n    }\n    return p;\n}\n// Transforms a parsed number into a percentage by multiplying it by 100\nfunction toPercent(parsedNumber) {\n    // if the number is 0, don't do anything\n    if (parsedNumber.digits[0] === 0) {\n        return parsedNumber;\n    }\n    // Getting the current number of decimals\n    const fractionLen = parsedNumber.digits.length - parsedNumber.integerLen;\n    if (parsedNumber.exponent) {\n        parsedNumber.exponent += 2;\n    }\n    else {\n        if (fractionLen === 0) {\n            parsedNumber.digits.push(0, 0);\n        }\n        else if (fractionLen === 1) {\n            parsedNumber.digits.push(0);\n        }\n        parsedNumber.integerLen += 2;\n    }\n    return parsedNumber;\n}\n/**\n * Parses a number.\n * Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/\n */\nfunction parseNumber(num) {\n    let numStr = Math.abs(num) + '';\n    let exponent = 0, digits, integerLen;\n    let i, j, zeros;\n    // Decimal point?\n    if ((integerLen = numStr.indexOf(DECIMAL_SEP)) > -1) {\n        numStr = numStr.replace(DECIMAL_SEP, '');\n    }\n    // Exponential form?\n    if ((i = numStr.search(/e/i)) > 0) {\n        // Work out the exponent.\n        if (integerLen < 0)\n            integerLen = i;\n        integerLen += +numStr.slice(i + 1);\n        numStr = numStr.substring(0, i);\n    }\n    else if (integerLen < 0) {\n        // There was no decimal point or exponent so it is an integer.\n        integerLen = numStr.length;\n    }\n    // Count the number of leading zeros.\n    for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */\n    }\n    if (i === (zeros = numStr.length)) {\n        // The digits are all zero.\n        digits = [0];\n        integerLen = 1;\n    }\n    else {\n        // Count the number of trailing zeros\n        zeros--;\n        while (numStr.charAt(zeros) === ZERO_CHAR)\n            zeros--;\n        // Trailing zeros are insignificant so ignore them\n        integerLen -= i;\n        digits = [];\n        // Convert string to array of digits without leading/trailing zeros.\n        for (j = 0; i <= zeros; i++, j++) {\n            digits[j] = Number(numStr.charAt(i));\n        }\n    }\n    // If the number overflows the maximum allowed digits then use an exponent.\n    if (integerLen > MAX_DIGITS) {\n        digits = digits.splice(0, MAX_DIGITS - 1);\n        exponent = integerLen - 1;\n        integerLen = 1;\n    }\n    return { digits, exponent, integerLen };\n}\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changes the parsedNumber in-place\n */\nfunction roundNumber(parsedNumber, minFrac, maxFrac) {\n    if (minFrac > maxFrac) {\n        throw new Error(`The minimum number of digits after fraction (${minFrac}) is higher than the maximum (${maxFrac}).`);\n    }\n    let digits = parsedNumber.digits;\n    let fractionLen = digits.length - parsedNumber.integerLen;\n    const fractionSize = Math.min(Math.max(minFrac, fractionLen), maxFrac);\n    // The index of the digit to where rounding is to occur\n    let roundAt = fractionSize + parsedNumber.integerLen;\n    let digit = digits[roundAt];\n    if (roundAt > 0) {\n        // Drop fractional digits beyond `roundAt`\n        digits.splice(Math.max(parsedNumber.integerLen, roundAt));\n        // Set non-fractional digits beyond `roundAt` to 0\n        for (let j = roundAt; j < digits.length; j++) {\n            digits[j] = 0;\n        }\n    }\n    else {\n        // We rounded to zero so reset the parsedNumber\n        fractionLen = Math.max(0, fractionLen);\n        parsedNumber.integerLen = 1;\n        digits.length = Math.max(1, roundAt = fractionSize + 1);\n        digits[0] = 0;\n        for (let i = 1; i < roundAt; i++)\n            digits[i] = 0;\n    }\n    if (digit >= 5) {\n        if (roundAt - 1 < 0) {\n            for (let k = 0; k > roundAt; k--) {\n                digits.unshift(0);\n                parsedNumber.integerLen++;\n            }\n            digits.unshift(1);\n            parsedNumber.integerLen++;\n        }\n        else {\n            digits[roundAt - 1]++;\n        }\n    }\n    // Pad out with zeros to get the required fraction length\n    for (; fractionLen < Math.max(0, fractionSize); fractionLen++)\n        digits.push(0);\n    let dropTrailingZeros = fractionSize !== 0;\n    // Minimal length = nb of decimals required + current nb of integers\n    // Any number besides that is optional and can be removed if it's a trailing 0\n    const minLen = minFrac + parsedNumber.integerLen;\n    // Do any carrying, e.g. a digit was rounded up to 10\n    const carry = digits.reduceRight(function (carry, d, i, digits) {\n        d = d + carry;\n        digits[i] = d < 10 ? d : d - 10; // d % 10\n        if (dropTrailingZeros) {\n            // Do not keep meaningless fractional trailing zeros (e.g. 15.52000 --> 15.52)\n            if (digits[i] === 0 && i >= minLen) {\n                digits.pop();\n            }\n            else {\n                dropTrailingZeros = false;\n            }\n        }\n        return d >= 10 ? 1 : 0; // Math.floor(d / 10);\n    }, 0);\n    if (carry) {\n        digits.unshift(carry);\n        parsedNumber.integerLen++;\n    }\n}\nfunction parseIntAutoRadix(text) {\n    const result = parseInt(text);\n    if (isNaN(result)) {\n        throw new Error('Invalid integer literal when parsing ' + text);\n    }\n    return result;\n}\n\n/**\n * @publicApi\n */\nclass NgLocalization {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgLocalization, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgLocalization, providedIn: 'root', useFactory: (locale) => new NgLocaleLocalization(locale), deps: [{ token: LOCALE_ID }] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgLocalization, decorators: [{\n            type: Injectable,\n            args: [{\n                    providedIn: 'root',\n                    useFactory: (locale) => new NgLocaleLocalization(locale),\n                    deps: [LOCALE_ID],\n                }]\n        }] });\n/**\n * Returns the plural category for a given value.\n * - \"=value\" when the case exists,\n * - the plural category otherwise\n */\nfunction getPluralCategory(value, cases, ngLocalization, locale) {\n    let key = `=${value}`;\n    if (cases.indexOf(key) > -1) {\n        return key;\n    }\n    key = ngLocalization.getPluralCategory(value, locale);\n    if (cases.indexOf(key) > -1) {\n        return key;\n    }\n    if (cases.indexOf('other') > -1) {\n        return 'other';\n    }\n    throw new Error(`No plural message found for value \"${value}\"`);\n}\n/**\n * Returns the plural case based on the locale\n *\n * @publicApi\n */\nclass NgLocaleLocalization extends NgLocalization {\n    constructor(locale) {\n        super();\n        this.locale = locale;\n    }\n    getPluralCategory(value, locale) {\n        const plural = getLocalePluralCase(locale || this.locale)(value);\n        switch (plural) {\n            case Plural.Zero:\n                return 'zero';\n            case Plural.One:\n                return 'one';\n            case Plural.Two:\n                return 'two';\n            case Plural.Few:\n                return 'few';\n            case Plural.Many:\n                return 'many';\n            default:\n                return 'other';\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgLocaleLocalization, deps: [{ token: LOCALE_ID }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgLocaleLocalization }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgLocaleLocalization, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [LOCALE_ID]\n                }] }]; } });\n\n/**\n * Register global data to be used internally by Angular. See the\n * [\"I18n guide\"](guide/i18n-common-format-data-locale) to know how to import additional locale\n * data.\n *\n * The signature registerLocaleData(data: any, extraData?: any) is deprecated since v5.1\n *\n * @publicApi\n */\nfunction registerLocaleData(data, localeId, extraData) {\n    return ɵregisterLocaleData(data, localeId, extraData);\n}\n\nfunction parseCookieValue(cookieStr, name) {\n    name = encodeURIComponent(name);\n    for (const cookie of cookieStr.split(';')) {\n        const eqIndex = cookie.indexOf('=');\n        const [cookieName, cookieValue] = eqIndex == -1 ? [cookie, ''] : [cookie.slice(0, eqIndex), cookie.slice(eqIndex + 1)];\n        if (cookieName.trim() === name) {\n            return decodeURIComponent(cookieValue);\n        }\n    }\n    return null;\n}\n\nconst WS_REGEXP = /\\s+/;\nconst EMPTY_ARRAY = [];\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n * ```\n *     <some-element [ngClass]=\"'first second'\">...</some-element>\n *\n *     <some-element [ngClass]=\"['first', 'second']\">...</some-element>\n *\n *     <some-element [ngClass]=\"{'first': true, 'second': true, 'third': false}\">...</some-element>\n *\n *     <some-element [ngClass]=\"stringExp|arrayExp|objExp\">...</some-element>\n *\n *     <some-element [ngClass]=\"{'class1 class2 class3' : true}\">...</some-element>\n * ```\n *\n * @description\n *\n * Adds and removes CSS classes on an HTML element.\n *\n * The CSS classes are updated as follows, depending on the type of the expression evaluation:\n * - `string` - the CSS classes listed in the string (space delimited) are added,\n * - `Array` - the CSS classes declared as Array elements are added,\n * - `Object` - keys are CSS classes that get added when the expression given in the value\n *              evaluates to a truthy value, otherwise they are removed.\n *\n * @publicApi\n */\nclass NgClass {\n    constructor(\n    // leaving references to differs in place since flex layout is extending NgClass...\n    _iterableDiffers, _keyValueDiffers, _ngEl, _renderer) {\n        this._iterableDiffers = _iterableDiffers;\n        this._keyValueDiffers = _keyValueDiffers;\n        this._ngEl = _ngEl;\n        this._renderer = _renderer;\n        this.initialClasses = EMPTY_ARRAY;\n        this.stateMap = new Map();\n    }\n    set klass(value) {\n        this.initialClasses = value != null ? value.trim().split(WS_REGEXP) : EMPTY_ARRAY;\n    }\n    set ngClass(value) {\n        this.rawClass = typeof value === 'string' ? value.trim().split(WS_REGEXP) : value;\n    }\n    /*\n    The NgClass directive uses the custom change detection algorithm for its inputs. The custom\n    algorithm is necessary since inputs are represented as complex object or arrays that need to be\n    deeply-compared.\n  \n    This algorithm is perf-sensitive since NgClass is used very frequently and its poor performance\n    might negatively impact runtime performance of the entire change detection cycle. The design of\n    this algorithm is making sure that:\n    - there is no unnecessary DOM manipulation (CSS classes are added / removed from the DOM only when\n    needed), even if references to bound objects change;\n    - there is no memory allocation if nothing changes (even relatively modest memory allocation\n    during the change detection cycle can result in GC pauses for some of the CD cycles).\n  \n    The algorithm works by iterating over the set of bound classes, staring with [class] binding and\n    then going over [ngClass] binding. For each CSS class name:\n    - check if it was seen before (this information is tracked in the state map) and if its value\n    changed;\n    - mark it as \"touched\" - names that are not marked are not present in the latest set of binding\n    and we can remove such class name from the internal data structures;\n  \n    After iteration over all the CSS class names we've got data structure with all the information\n    necessary to synchronize changes to the DOM - it is enough to iterate over the state map, flush\n    changes to the DOM and reset internal data structures so those are ready for the next change\n    detection cycle.\n     */\n    ngDoCheck() {\n        // classes from the [class] binding\n        for (const klass of this.initialClasses) {\n            this._updateState(klass, true);\n        }\n        // classes from the [ngClass] binding\n        const rawClass = this.rawClass;\n        if (Array.isArray(rawClass) || rawClass instanceof Set) {\n            for (const klass of rawClass) {\n                this._updateState(klass, true);\n            }\n        }\n        else if (rawClass != null) {\n            for (const klass of Object.keys(rawClass)) {\n                this._updateState(klass, Boolean(rawClass[klass]));\n            }\n        }\n        this._applyStateDiff();\n    }\n    _updateState(klass, nextEnabled) {\n        const state = this.stateMap.get(klass);\n        if (state !== undefined) {\n            if (state.enabled !== nextEnabled) {\n                state.changed = true;\n                state.enabled = nextEnabled;\n            }\n            state.touched = true;\n        }\n        else {\n            this.stateMap.set(klass, { enabled: nextEnabled, changed: true, touched: true });\n        }\n    }\n    _applyStateDiff() {\n        for (const stateEntry of this.stateMap) {\n            const klass = stateEntry[0];\n            const state = stateEntry[1];\n            if (state.changed) {\n                this._toggleClass(klass, state.enabled);\n                state.changed = false;\n            }\n            else if (!state.touched) {\n                // A class that was previously active got removed from the new collection of classes -\n                // remove from the DOM as well.\n                if (state.enabled) {\n                    this._toggleClass(klass, false);\n                }\n                this.stateMap.delete(klass);\n            }\n            state.touched = false;\n        }\n    }\n    _toggleClass(klass, enabled) {\n        if (ngDevMode) {\n            if (typeof klass !== 'string') {\n                throw new Error(`NgClass can only toggle CSS classes expressed as strings, got ${ɵstringify(klass)}`);\n            }\n        }\n        klass = klass.trim();\n        if (klass.length > 0) {\n            klass.split(WS_REGEXP).forEach(klass => {\n                if (enabled) {\n                    this._renderer.addClass(this._ngEl.nativeElement, klass);\n                }\n                else {\n                    this._renderer.removeClass(this._ngEl.nativeElement, klass);\n                }\n            });\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgClass, deps: [{ token: i0.IterableDiffers }, { token: i0.KeyValueDiffers }, { token: i0.ElementRef }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgClass, isStandalone: true, selector: \"[ngClass]\", inputs: { klass: [\"class\", \"klass\"], ngClass: \"ngClass\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgClass, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngClass]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.IterableDiffers }, { type: i0.KeyValueDiffers }, { type: i0.ElementRef }, { type: i0.Renderer2 }]; }, propDecorators: { klass: [{\n                type: Input,\n                args: ['class']\n            }], ngClass: [{\n                type: Input,\n                args: ['ngClass']\n            }] } });\n\n/**\n * Instantiates a {@link Component} type and inserts its Host View into the current View.\n * `NgComponentOutlet` provides a declarative approach for dynamic component creation.\n *\n * `NgComponentOutlet` requires a component type, if a falsy value is set the view will clear and\n * any existing component will be destroyed.\n *\n * @usageNotes\n *\n * ### Fine tune control\n *\n * You can control the component creation process by using the following optional attributes:\n *\n * * `ngComponentOutletInputs`: Optional component inputs object, which will be bind to the\n * component.\n *\n * * `ngComponentOutletInjector`: Optional custom {@link Injector} that will be used as parent for\n * the Component. Defaults to the injector of the current view container.\n *\n * * `ngComponentOutletContent`: Optional list of projectable nodes to insert into the content\n * section of the component, if it exists.\n *\n * * `ngComponentOutletNgModule`: Optional NgModule class reference to allow loading another\n * module dynamically, then loading a component from that module.\n *\n * * `ngComponentOutletNgModuleFactory`: Deprecated config option that allows providing optional\n * NgModule factory to allow loading another module dynamically, then loading a component from that\n * module. Use `ngComponentOutletNgModule` instead.\n *\n * ### Syntax\n *\n * Simple\n * ```\n * <ng-container *ngComponentOutlet=\"componentTypeExpression\"></ng-container>\n * ```\n *\n * With inputs\n * ```\n * <ng-container *ngComponentOutlet=\"componentTypeExpression;\n *                                   inputs: inputsExpression;\">\n * </ng-container>\n * ```\n *\n * Customized injector/content\n * ```\n * <ng-container *ngComponentOutlet=\"componentTypeExpression;\n *                                   injector: injectorExpression;\n *                                   content: contentNodesExpression;\">\n * </ng-container>\n * ```\n *\n * Customized NgModule reference\n * ```\n * <ng-container *ngComponentOutlet=\"componentTypeExpression;\n *                                   ngModule: ngModuleClass;\">\n * </ng-container>\n * ```\n *\n * ### A simple example\n *\n * {@example common/ngComponentOutlet/ts/module.ts region='SimpleExample'}\n *\n * A more complete example with additional options:\n *\n * {@example common/ngComponentOutlet/ts/module.ts region='CompleteExample'}\n *\n * @publicApi\n * @ngModule CommonModule\n */\nclass NgComponentOutlet {\n    constructor(_viewContainerRef) {\n        this._viewContainerRef = _viewContainerRef;\n        this.ngComponentOutlet = null;\n        /**\n         * A helper data structure that allows us to track inputs that were part of the\n         * ngComponentOutletInputs expression. Tracking inputs is necessary for proper removal of ones\n         * that are no longer referenced.\n         */\n        this._inputsUsed = new Map();\n    }\n    _needToReCreateNgModuleInstance(changes) {\n        // Note: square brackets property accessor is safe for Closure compiler optimizations (the\n        // `changes` argument of the `ngOnChanges` lifecycle hook retains the names of the fields that\n        // were changed).\n        return changes['ngComponentOutletNgModule'] !== undefined ||\n            changes['ngComponentOutletNgModuleFactory'] !== undefined;\n    }\n    _needToReCreateComponentInstance(changes) {\n        // Note: square brackets property accessor is safe for Closure compiler optimizations (the\n        // `changes` argument of the `ngOnChanges` lifecycle hook retains the names of the fields that\n        // were changed).\n        return changes['ngComponentOutlet'] !== undefined ||\n            changes['ngComponentOutletContent'] !== undefined ||\n            changes['ngComponentOutletInjector'] !== undefined ||\n            this._needToReCreateNgModuleInstance(changes);\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (this._needToReCreateComponentInstance(changes)) {\n            this._viewContainerRef.clear();\n            this._inputsUsed.clear();\n            this._componentRef = undefined;\n            if (this.ngComponentOutlet) {\n                const injector = this.ngComponentOutletInjector || this._viewContainerRef.parentInjector;\n                if (this._needToReCreateNgModuleInstance(changes)) {\n                    this._moduleRef?.destroy();\n                    if (this.ngComponentOutletNgModule) {\n                        this._moduleRef =\n                            createNgModule(this.ngComponentOutletNgModule, getParentInjector(injector));\n                    }\n                    else if (this.ngComponentOutletNgModuleFactory) {\n                        this._moduleRef =\n                            this.ngComponentOutletNgModuleFactory.create(getParentInjector(injector));\n                    }\n                    else {\n                        this._moduleRef = undefined;\n                    }\n                }\n                this._componentRef = this._viewContainerRef.createComponent(this.ngComponentOutlet, {\n                    injector,\n                    ngModuleRef: this._moduleRef,\n                    projectableNodes: this.ngComponentOutletContent,\n                });\n            }\n        }\n    }\n    /** @nodoc */\n    ngDoCheck() {\n        if (this._componentRef) {\n            if (this.ngComponentOutletInputs) {\n                for (const inputName of Object.keys(this.ngComponentOutletInputs)) {\n                    this._inputsUsed.set(inputName, true);\n                }\n            }\n            this._applyInputStateDiff(this._componentRef);\n        }\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this._moduleRef?.destroy();\n    }\n    _applyInputStateDiff(componentRef) {\n        for (const [inputName, touched] of this._inputsUsed) {\n            if (!touched) {\n                // The input that was previously active no longer exists and needs to be set to undefined.\n                componentRef.setInput(inputName, undefined);\n                this._inputsUsed.delete(inputName);\n            }\n            else {\n                // Since touched is true, it can be asserted that the inputs object is not empty.\n                componentRef.setInput(inputName, this.ngComponentOutletInputs[inputName]);\n                this._inputsUsed.set(inputName, false);\n            }\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgComponentOutlet, deps: [{ token: i0.ViewContainerRef }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgComponentOutlet, isStandalone: true, selector: \"[ngComponentOutlet]\", inputs: { ngComponentOutlet: \"ngComponentOutlet\", ngComponentOutletInputs: \"ngComponentOutletInputs\", ngComponentOutletInjector: \"ngComponentOutletInjector\", ngComponentOutletContent: \"ngComponentOutletContent\", ngComponentOutletNgModule: \"ngComponentOutletNgModule\", ngComponentOutletNgModuleFactory: \"ngComponentOutletNgModuleFactory\" }, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgComponentOutlet, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngComponentOutlet]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }]; }, propDecorators: { ngComponentOutlet: [{\n                type: Input\n            }], ngComponentOutletInputs: [{\n                type: Input\n            }], ngComponentOutletInjector: [{\n                type: Input\n            }], ngComponentOutletContent: [{\n                type: Input\n            }], ngComponentOutletNgModule: [{\n                type: Input\n            }], ngComponentOutletNgModuleFactory: [{\n                type: Input\n            }] } });\n// Helper function that returns an Injector instance of a parent NgModule.\nfunction getParentInjector(injector) {\n    const parentNgModule = injector.get(NgModuleRef);\n    return parentNgModule.injector;\n}\n\n/**\n * @publicApi\n */\nclass NgForOfContext {\n    constructor($implicit, ngForOf, index, count) {\n        this.$implicit = $implicit;\n        this.ngForOf = ngForOf;\n        this.index = index;\n        this.count = count;\n    }\n    get first() {\n        return this.index === 0;\n    }\n    get last() {\n        return this.index === this.count - 1;\n    }\n    get even() {\n        return this.index % 2 === 0;\n    }\n    get odd() {\n        return !this.even;\n    }\n}\n/**\n * A [structural directive](guide/structural-directives) that renders\n * a template for each item in a collection.\n * The directive is placed on an element, which becomes the parent\n * of the cloned templates.\n *\n * The `ngForOf` directive is generally used in the\n * [shorthand form](guide/structural-directives#asterisk) `*ngFor`.\n * In this form, the template to be rendered for each iteration is the content\n * of an anchor element containing the directive.\n *\n * The following example shows the shorthand syntax with some options,\n * contained in an `<li>` element.\n *\n * ```\n * <li *ngFor=\"let item of items; index as i; trackBy: trackByFn\">...</li>\n * ```\n *\n * The shorthand form expands into a long form that uses the `ngForOf` selector\n * on an `<ng-template>` element.\n * The content of the `<ng-template>` element is the `<li>` element that held the\n * short-form directive.\n *\n * Here is the expanded version of the short-form example.\n *\n * ```\n * <ng-template ngFor let-item [ngForOf]=\"items\" let-i=\"index\" [ngForTrackBy]=\"trackByFn\">\n *   <li>...</li>\n * </ng-template>\n * ```\n *\n * Angular automatically expands the shorthand syntax as it compiles the template.\n * The context for each embedded view is logically merged to the current component\n * context according to its lexical position.\n *\n * When using the shorthand syntax, Angular allows only [one structural directive\n * on an element](guide/structural-directives#one-per-element).\n * If you want to iterate conditionally, for example,\n * put the `*ngIf` on a container element that wraps the `*ngFor` element.\n * For further discussion, see\n * [Structural Directives](guide/structural-directives#one-per-element).\n *\n * @usageNotes\n *\n * ### Local variables\n *\n * `NgForOf` provides exported values that can be aliased to local variables.\n * For example:\n *\n *  ```\n * <li *ngFor=\"let user of users; index as i; first as isFirst\">\n *    {{i}}/{{users.length}}. {{user}} <span *ngIf=\"isFirst\">default</span>\n * </li>\n * ```\n *\n * The following exported values can be aliased to local variables:\n *\n * - `$implicit: T`: The value of the individual items in the iterable (`ngForOf`).\n * - `ngForOf: NgIterable<T>`: The value of the iterable expression. Useful when the expression is\n * more complex then a property access, for example when using the async pipe (`userStreams |\n * async`).\n * - `index: number`: The index of the current item in the iterable.\n * - `count: number`: The length of the iterable.\n * - `first: boolean`: True when the item is the first item in the iterable.\n * - `last: boolean`: True when the item is the last item in the iterable.\n * - `even: boolean`: True when the item has an even index in the iterable.\n * - `odd: boolean`: True when the item has an odd index in the iterable.\n *\n * ### Change propagation\n *\n * When the contents of the iterator changes, `NgForOf` makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * Angular uses object identity to track insertions and deletions within the iterator and reproduce\n * those changes in the DOM. This has important implications for animations and any stateful\n * controls that are present, such as `<input>` elements that accept user input. Inserted rows can\n * be animated in, deleted rows can be animated out, and unchanged rows retain any unsaved state\n * such as user input.\n * For more on animations, see [Transitions and Triggers](guide/transition-and-triggers).\n *\n * The identities of elements in the iterator can change while the data does not.\n * This can happen, for example, if the iterator is produced from an RPC to the server, and that\n * RPC is re-run. Even if the data hasn't changed, the second response produces objects with\n * different identities, and Angular must tear down the entire DOM and rebuild it (as if all old\n * elements were deleted and all new elements inserted).\n *\n * To avoid this expensive operation, you can customize the default tracking algorithm.\n * by supplying the `trackBy` option to `NgForOf`.\n * `trackBy` takes a function that has two arguments: `index` and `item`.\n * If `trackBy` is given, Angular tracks changes by the return value of the function.\n *\n * @see [Structural Directives](guide/structural-directives)\n * @ngModule CommonModule\n * @publicApi\n */\nclass NgForOf {\n    /**\n     * The value of the iterable expression, which can be used as a\n     * [template input variable](guide/structural-directives#shorthand).\n     */\n    set ngForOf(ngForOf) {\n        this._ngForOf = ngForOf;\n        this._ngForOfDirty = true;\n    }\n    /**\n     * Specifies a custom `TrackByFunction` to compute the identity of items in an iterable.\n     *\n     * If a custom `TrackByFunction` is not provided, `NgForOf` will use the item's [object\n     * identity](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is)\n     * as the key.\n     *\n     * `NgForOf` uses the computed key to associate items in an iterable with DOM elements\n     * it produces for these items.\n     *\n     * A custom `TrackByFunction` is useful to provide good user experience in cases when items in an\n     * iterable rendered using `NgForOf` have a natural identifier (for example, custom ID or a\n     * primary key), and this iterable could be updated with new object instances that still\n     * represent the same underlying entity (for example, when data is re-fetched from the server,\n     * and the iterable is recreated and re-rendered, but most of the data is still the same).\n     *\n     * @see {@link TrackByFunction}\n     */\n    set ngForTrackBy(fn) {\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && fn != null && typeof fn !== 'function') {\n            console.warn(`trackBy must be a function, but received ${JSON.stringify(fn)}. ` +\n                `See https://angular.io/api/common/NgForOf#change-propagation for more information.`);\n        }\n        this._trackByFn = fn;\n    }\n    get ngForTrackBy() {\n        return this._trackByFn;\n    }\n    constructor(_viewContainer, _template, _differs) {\n        this._viewContainer = _viewContainer;\n        this._template = _template;\n        this._differs = _differs;\n        this._ngForOf = null;\n        this._ngForOfDirty = true;\n        this._differ = null;\n    }\n    /**\n     * A reference to the template that is stamped out for each item in the iterable.\n     * @see [template reference variable](guide/template-reference-variables)\n     */\n    set ngForTemplate(value) {\n        // TODO(TS2.1): make TemplateRef<Partial<NgForRowOf<T>>> once we move to TS v2.1\n        // The current type is too restrictive; a template that just uses index, for example,\n        // should be acceptable.\n        if (value) {\n            this._template = value;\n        }\n    }\n    /**\n     * Applies the changes when needed.\n     * @nodoc\n     */\n    ngDoCheck() {\n        if (this._ngForOfDirty) {\n            this._ngForOfDirty = false;\n            // React on ngForOf changes only once all inputs have been initialized\n            const value = this._ngForOf;\n            if (!this._differ && value) {\n                if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                    try {\n                        // CAUTION: this logic is duplicated for production mode below, as the try-catch\n                        // is only present in development builds.\n                        this._differ = this._differs.find(value).create(this.ngForTrackBy);\n                    }\n                    catch {\n                        let errorMessage = `Cannot find a differ supporting object '${value}' of type '` +\n                            `${getTypeName(value)}'. NgFor only supports binding to Iterables, such as Arrays.`;\n                        if (typeof value === 'object') {\n                            errorMessage += ' Did you mean to use the keyvalue pipe?';\n                        }\n                        throw new ɵRuntimeError(-2200 /* RuntimeErrorCode.NG_FOR_MISSING_DIFFER */, errorMessage);\n                    }\n                }\n                else {\n                    // CAUTION: this logic is duplicated for development mode above, as the try-catch\n                    // is only present in development builds.\n                    this._differ = this._differs.find(value).create(this.ngForTrackBy);\n                }\n            }\n        }\n        if (this._differ) {\n            const changes = this._differ.diff(this._ngForOf);\n            if (changes)\n                this._applyChanges(changes);\n        }\n    }\n    _applyChanges(changes) {\n        const viewContainer = this._viewContainer;\n        changes.forEachOperation((item, adjustedPreviousIndex, currentIndex) => {\n            if (item.previousIndex == null) {\n                // NgForOf is never \"null\" or \"undefined\" here because the differ detected\n                // that a new item needs to be inserted from the iterable. This implies that\n                // there is an iterable value for \"_ngForOf\".\n                viewContainer.createEmbeddedView(this._template, new NgForOfContext(item.item, this._ngForOf, -1, -1), currentIndex === null ? undefined : currentIndex);\n            }\n            else if (currentIndex == null) {\n                viewContainer.remove(adjustedPreviousIndex === null ? undefined : adjustedPreviousIndex);\n            }\n            else if (adjustedPreviousIndex !== null) {\n                const view = viewContainer.get(adjustedPreviousIndex);\n                viewContainer.move(view, currentIndex);\n                applyViewChange(view, item);\n            }\n        });\n        for (let i = 0, ilen = viewContainer.length; i < ilen; i++) {\n            const viewRef = viewContainer.get(i);\n            const context = viewRef.context;\n            context.index = i;\n            context.count = ilen;\n            context.ngForOf = this._ngForOf;\n        }\n        changes.forEachIdentityChange((record) => {\n            const viewRef = viewContainer.get(record.currentIndex);\n            applyViewChange(viewRef, record);\n        });\n    }\n    /**\n     * Asserts the correct type of the context for the template that `NgForOf` will render.\n     *\n     * The presence of this method is a signal to the Ivy template type-check compiler that the\n     * `NgForOf` structural directive renders its template with a specific context type.\n     */\n    static ngTemplateContextGuard(dir, ctx) {\n        return true;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgForOf, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: i0.IterableDiffers }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgForOf, isStandalone: true, selector: \"[ngFor][ngForOf]\", inputs: { ngForOf: \"ngForOf\", ngForTrackBy: \"ngForTrackBy\", ngForTemplate: \"ngForTemplate\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgForOf, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngFor][ngForOf]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: i0.IterableDiffers }]; }, propDecorators: { ngForOf: [{\n                type: Input\n            }], ngForTrackBy: [{\n                type: Input\n            }], ngForTemplate: [{\n                type: Input\n            }] } });\nfunction applyViewChange(view, record) {\n    view.context.$implicit = record.item;\n}\nfunction getTypeName(type) {\n    return type['name'] || typeof type;\n}\n\n/**\n * A structural directive that conditionally includes a template based on the value of\n * an expression coerced to Boolean.\n * When the expression evaluates to true, Angular renders the template\n * provided in a `then` clause, and when  false or null,\n * Angular renders the template provided in an optional `else` clause. The default\n * template for the `else` clause is blank.\n *\n * A [shorthand form](guide/structural-directives#asterisk) of the directive,\n * `*ngIf=\"condition\"`, is generally used, provided\n * as an attribute of the anchor element for the inserted template.\n * Angular expands this into a more explicit version, in which the anchor element\n * is contained in an `<ng-template>` element.\n *\n * Simple form with shorthand syntax:\n *\n * ```\n * <div *ngIf=\"condition\">Content to render when condition is true.</div>\n * ```\n *\n * Simple form with expanded syntax:\n *\n * ```\n * <ng-template [ngIf]=\"condition\"><div>Content to render when condition is\n * true.</div></ng-template>\n * ```\n *\n * Form with an \"else\" block:\n *\n * ```\n * <div *ngIf=\"condition; else elseBlock\">Content to render when condition is true.</div>\n * <ng-template #elseBlock>Content to render when condition is false.</ng-template>\n * ```\n *\n * Shorthand form with \"then\" and \"else\" blocks:\n *\n * ```\n * <div *ngIf=\"condition; then thenBlock else elseBlock\"></div>\n * <ng-template #thenBlock>Content to render when condition is true.</ng-template>\n * <ng-template #elseBlock>Content to render when condition is false.</ng-template>\n * ```\n *\n * Form with storing the value locally:\n *\n * ```\n * <div *ngIf=\"condition as value; else elseBlock\">{{value}}</div>\n * <ng-template #elseBlock>Content to render when value is null.</ng-template>\n * ```\n *\n * @usageNotes\n *\n * The `*ngIf` directive is most commonly used to conditionally show an inline template,\n * as seen in the following  example.\n * The default `else` template is blank.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfSimple'}\n *\n * ### Showing an alternative template using `else`\n *\n * To display a template when `expression` evaluates to false, use an `else` template\n * binding as shown in the following example.\n * The `else` binding points to an `<ng-template>`  element labeled `#elseBlock`.\n * The template can be defined anywhere in the component view, but is typically placed right after\n * `ngIf` for readability.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfElse'}\n *\n * ### Using an external `then` template\n *\n * In the previous example, the then-clause template is specified inline, as the content of the\n * tag that contains the `ngIf` directive. You can also specify a template that is defined\n * externally, by referencing a labeled `<ng-template>` element. When you do this, you can\n * change which template to use at runtime, as shown in the following example.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfThenElse'}\n *\n * ### Storing a conditional result in a variable\n *\n * You might want to show a set of properties from the same object. If you are waiting\n * for asynchronous data, the object can be undefined.\n * In this case, you can use `ngIf` and store the result of the condition in a local\n * variable as shown in the following example.\n *\n * {@example common/ngIf/ts/module.ts region='NgIfAs'}\n *\n * This code uses only one `AsyncPipe`, so only one subscription is created.\n * The conditional statement stores the result of `userStream|async` in the local variable `user`.\n * You can then bind the local `user` repeatedly.\n *\n * The conditional displays the data only if `userStream` returns a value,\n * so you don't need to use the\n * safe-navigation-operator (`?.`)\n * to guard against null values when accessing properties.\n * You can display an alternative template while waiting for the data.\n *\n * ### Shorthand syntax\n *\n * The shorthand syntax `*ngIf` expands into two separate template specifications\n * for the \"then\" and \"else\" clauses. For example, consider the following shorthand statement,\n * that is meant to show a loading page while waiting for data to be loaded.\n *\n * ```\n * <div class=\"hero-list\" *ngIf=\"heroes else loading\">\n *  ...\n * </div>\n *\n * <ng-template #loading>\n *  <div>Loading...</div>\n * </ng-template>\n * ```\n *\n * You can see that the \"else\" clause references the `<ng-template>`\n * with the `#loading` label, and the template for the \"then\" clause\n * is provided as the content of the anchor element.\n *\n * However, when Angular expands the shorthand syntax, it creates\n * another `<ng-template>` tag, with `ngIf` and `ngIfElse` directives.\n * The anchor element containing the template for the \"then\" clause becomes\n * the content of this unlabeled `<ng-template>` tag.\n *\n * ```\n * <ng-template [ngIf]=\"heroes\" [ngIfElse]=\"loading\">\n *  <div class=\"hero-list\">\n *   ...\n *  </div>\n * </ng-template>\n *\n * <ng-template #loading>\n *  <div>Loading...</div>\n * </ng-template>\n * ```\n *\n * The presence of the implicit template object has implications for the nesting of\n * structural directives. For more on this subject, see\n * [Structural Directives](guide/structural-directives#one-per-element).\n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass NgIf {\n    constructor(_viewContainer, templateRef) {\n        this._viewContainer = _viewContainer;\n        this._context = new NgIfContext();\n        this._thenTemplateRef = null;\n        this._elseTemplateRef = null;\n        this._thenViewRef = null;\n        this._elseViewRef = null;\n        this._thenTemplateRef = templateRef;\n    }\n    /**\n     * The Boolean expression to evaluate as the condition for showing a template.\n     */\n    set ngIf(condition) {\n        this._context.$implicit = this._context.ngIf = condition;\n        this._updateView();\n    }\n    /**\n     * A template to show if the condition expression evaluates to true.\n     */\n    set ngIfThen(templateRef) {\n        assertTemplate('ngIfThen', templateRef);\n        this._thenTemplateRef = templateRef;\n        this._thenViewRef = null; // clear previous view if any.\n        this._updateView();\n    }\n    /**\n     * A template to show if the condition expression evaluates to false.\n     */\n    set ngIfElse(templateRef) {\n        assertTemplate('ngIfElse', templateRef);\n        this._elseTemplateRef = templateRef;\n        this._elseViewRef = null; // clear previous view if any.\n        this._updateView();\n    }\n    _updateView() {\n        if (this._context.$implicit) {\n            if (!this._thenViewRef) {\n                this._viewContainer.clear();\n                this._elseViewRef = null;\n                if (this._thenTemplateRef) {\n                    this._thenViewRef =\n                        this._viewContainer.createEmbeddedView(this._thenTemplateRef, this._context);\n                }\n            }\n        }\n        else {\n            if (!this._elseViewRef) {\n                this._viewContainer.clear();\n                this._thenViewRef = null;\n                if (this._elseTemplateRef) {\n                    this._elseViewRef =\n                        this._viewContainer.createEmbeddedView(this._elseTemplateRef, this._context);\n                }\n            }\n        }\n    }\n    /**\n     * Asserts the correct type of the context for the template that `NgIf` will render.\n     *\n     * The presence of this method is a signal to the Ivy template type-check compiler that the\n     * `NgIf` structural directive renders its template with a specific context type.\n     */\n    static ngTemplateContextGuard(dir, ctx) {\n        return true;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgIf, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgIf, isStandalone: true, selector: \"[ngIf]\", inputs: { ngIf: \"ngIf\", ngIfThen: \"ngIfThen\", ngIfElse: \"ngIfElse\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgIf, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngIf]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }]; }, propDecorators: { ngIf: [{\n                type: Input\n            }], ngIfThen: [{\n                type: Input\n            }], ngIfElse: [{\n                type: Input\n            }] } });\n/**\n * @publicApi\n */\nclass NgIfContext {\n    constructor() {\n        this.$implicit = null;\n        this.ngIf = null;\n    }\n}\nfunction assertTemplate(property, templateRef) {\n    const isTemplateRefOrNull = !!(!templateRef || templateRef.createEmbeddedView);\n    if (!isTemplateRefOrNull) {\n        throw new Error(`${property} must be a TemplateRef, but received '${ɵstringify(templateRef)}'.`);\n    }\n}\n\nclass SwitchView {\n    constructor(_viewContainerRef, _templateRef) {\n        this._viewContainerRef = _viewContainerRef;\n        this._templateRef = _templateRef;\n        this._created = false;\n    }\n    create() {\n        this._created = true;\n        this._viewContainerRef.createEmbeddedView(this._templateRef);\n    }\n    destroy() {\n        this._created = false;\n        this._viewContainerRef.clear();\n    }\n    enforceState(created) {\n        if (created && !this._created) {\n            this.create();\n        }\n        else if (!created && this._created) {\n            this.destroy();\n        }\n    }\n}\n/**\n * @ngModule CommonModule\n *\n * @description\n * The `[ngSwitch]` directive on a container specifies an expression to match against.\n * The expressions to match are provided by `ngSwitchCase` directives on views within the container.\n * - Every view that matches is rendered.\n * - If there are no matches, a view with the `ngSwitchDefault` directive is rendered.\n * - Elements within the `[NgSwitch]` statement but outside of any `NgSwitchCase`\n * or `ngSwitchDefault` directive are preserved at the location.\n *\n * @usageNotes\n * Define a container element for the directive, and specify the switch expression\n * to match against as an attribute:\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n * ```\n *\n * Within the container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *    <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n * ...\n *    <some-element *ngSwitchDefault>...</some-element>\n * </container-element>\n * ```\n *\n * ### Usage Examples\n *\n * The following example shows how to use more than one case to display the same view:\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *   <!-- the same view can be shown in more than one case -->\n *   <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n *   <some-element *ngSwitchCase=\"match_expression_2\">...</some-element>\n *   <some-other-element *ngSwitchCase=\"match_expression_3\">...</some-other-element>\n *   <!--default case when there are no matches -->\n *   <some-element *ngSwitchDefault>...</some-element>\n * </container-element>\n * ```\n *\n * The following example shows how cases can be nested:\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *       <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n *       <some-element *ngSwitchCase=\"match_expression_2\">...</some-element>\n *       <some-other-element *ngSwitchCase=\"match_expression_3\">...</some-other-element>\n *       <ng-container *ngSwitchCase=\"match_expression_3\">\n *         <!-- use a ng-container to group multiple root nodes -->\n *         <inner-element></inner-element>\n *         <inner-other-element></inner-other-element>\n *       </ng-container>\n *       <some-element *ngSwitchDefault>...</some-element>\n *     </container-element>\n * ```\n *\n * @publicApi\n * @see {@link NgSwitchCase}\n * @see {@link NgSwitchDefault}\n * @see [Structural Directives](guide/structural-directives)\n *\n */\nclass NgSwitch {\n    constructor() {\n        this._defaultViews = [];\n        this._defaultUsed = false;\n        this._caseCount = 0;\n        this._lastCaseCheckIndex = 0;\n        this._lastCasesMatched = false;\n    }\n    set ngSwitch(newValue) {\n        this._ngSwitch = newValue;\n        if (this._caseCount === 0) {\n            this._updateDefaultCases(true);\n        }\n    }\n    /** @internal */\n    _addCase() {\n        return this._caseCount++;\n    }\n    /** @internal */\n    _addDefault(view) {\n        this._defaultViews.push(view);\n    }\n    /** @internal */\n    _matchCase(value) {\n        const matched = value == this._ngSwitch;\n        this._lastCasesMatched = this._lastCasesMatched || matched;\n        this._lastCaseCheckIndex++;\n        if (this._lastCaseCheckIndex === this._caseCount) {\n            this._updateDefaultCases(!this._lastCasesMatched);\n            this._lastCaseCheckIndex = 0;\n            this._lastCasesMatched = false;\n        }\n        return matched;\n    }\n    _updateDefaultCases(useDefault) {\n        if (this._defaultViews.length > 0 && useDefault !== this._defaultUsed) {\n            this._defaultUsed = useDefault;\n            for (const defaultView of this._defaultViews) {\n                defaultView.enforceState(useDefault);\n            }\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSwitch, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgSwitch, isStandalone: true, selector: \"[ngSwitch]\", inputs: { ngSwitch: \"ngSwitch\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSwitch, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngSwitch]',\n                    standalone: true,\n                }]\n        }], propDecorators: { ngSwitch: [{\n                type: Input\n            }] } });\n/**\n * @ngModule CommonModule\n *\n * @description\n * Provides a switch case expression to match against an enclosing `ngSwitch` expression.\n * When the expressions match, the given `NgSwitchCase` template is rendered.\n * If multiple match expressions match the switch expression value, all of them are displayed.\n *\n * @usageNotes\n *\n * Within a switch container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *   <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n *   ...\n *   <some-element *ngSwitchDefault>...</some-element>\n * </container-element>\n * ```\n *\n * Each switch-case statement contains an in-line HTML template or template reference\n * that defines the subtree to be selected if the value of the match expression\n * matches the value of the switch expression.\n *\n * Unlike JavaScript, which uses strict equality, Angular uses loose equality.\n * This means that the empty string, `\"\"` matches 0.\n *\n * @publicApi\n * @see {@link NgSwitch}\n * @see {@link NgSwitchDefault}\n *\n */\nclass NgSwitchCase {\n    constructor(viewContainer, templateRef, ngSwitch) {\n        this.ngSwitch = ngSwitch;\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && !ngSwitch) {\n            throwNgSwitchProviderNotFoundError('ngSwitchCase', 'NgSwitchCase');\n        }\n        ngSwitch._addCase();\n        this._view = new SwitchView(viewContainer, templateRef);\n    }\n    /**\n     * Performs case matching. For internal use only.\n     * @nodoc\n     */\n    ngDoCheck() {\n        this._view.enforceState(this.ngSwitch._matchCase(this.ngSwitchCase));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSwitchCase, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: NgSwitch, host: true, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgSwitchCase, isStandalone: true, selector: \"[ngSwitchCase]\", inputs: { ngSwitchCase: \"ngSwitchCase\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSwitchCase, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngSwitchCase]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: NgSwitch, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }] }]; }, propDecorators: { ngSwitchCase: [{\n                type: Input\n            }] } });\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Creates a view that is rendered when no `NgSwitchCase` expressions\n * match the `NgSwitch` expression.\n * This statement should be the final case in an `NgSwitch`.\n *\n * @publicApi\n * @see {@link NgSwitch}\n * @see {@link NgSwitchCase}\n *\n */\nclass NgSwitchDefault {\n    constructor(viewContainer, templateRef, ngSwitch) {\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && !ngSwitch) {\n            throwNgSwitchProviderNotFoundError('ngSwitchDefault', 'NgSwitchDefault');\n        }\n        ngSwitch._addDefault(new SwitchView(viewContainer, templateRef));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSwitchDefault, deps: [{ token: i0.ViewContainerRef }, { token: i0.TemplateRef }, { token: NgSwitch, host: true, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgSwitchDefault, isStandalone: true, selector: \"[ngSwitchDefault]\", ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgSwitchDefault, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngSwitchDefault]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: i0.TemplateRef }, { type: NgSwitch, decorators: [{\n                    type: Optional\n                }, {\n                    type: Host\n                }] }]; } });\nfunction throwNgSwitchProviderNotFoundError(attrName, directiveName) {\n    throw new ɵRuntimeError(2000 /* RuntimeErrorCode.PARENT_NG_SWITCH_NOT_FOUND */, `An element with the \"${attrName}\" attribute ` +\n        `(matching the \"${directiveName}\" directive) must be located inside an element with the \"ngSwitch\" attribute ` +\n        `(matching \"NgSwitch\" directive)`);\n}\n\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n * ```\n * <some-element [ngPlural]=\"value\">\n *   <ng-template ngPluralCase=\"=0\">there is nothing</ng-template>\n *   <ng-template ngPluralCase=\"=1\">there is one</ng-template>\n *   <ng-template ngPluralCase=\"few\">there are a few</ng-template>\n * </some-element>\n * ```\n *\n * @description\n *\n * Adds / removes DOM sub-trees based on a numeric value. Tailored for pluralization.\n *\n * Displays DOM sub-trees that match the switch expression value, or failing that, DOM sub-trees\n * that match the switch expression's pluralization category.\n *\n * To use this directive you must provide a container element that sets the `[ngPlural]` attribute\n * to a switch expression. Inner elements with a `[ngPluralCase]` will display based on their\n * expression:\n * - if `[ngPluralCase]` is set to a value starting with `=`, it will only display if the value\n *   matches the switch expression exactly,\n * - otherwise, the view will be treated as a \"category match\", and will only display if exact\n *   value matches aren't found and the value maps to its category for the defined locale.\n *\n * See http://cldr.unicode.org/index/cldr-spec/plural-rules\n *\n * @publicApi\n */\nclass NgPlural {\n    constructor(_localization) {\n        this._localization = _localization;\n        this._caseViews = {};\n    }\n    set ngPlural(value) {\n        this._updateView(value);\n    }\n    addCase(value, switchView) {\n        this._caseViews[value] = switchView;\n    }\n    _updateView(switchValue) {\n        this._clearViews();\n        const cases = Object.keys(this._caseViews);\n        const key = getPluralCategory(switchValue, cases, this._localization);\n        this._activateView(this._caseViews[key]);\n    }\n    _clearViews() {\n        if (this._activeView)\n            this._activeView.destroy();\n    }\n    _activateView(view) {\n        if (view) {\n            this._activeView = view;\n            this._activeView.create();\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgPlural, deps: [{ token: NgLocalization }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgPlural, isStandalone: true, selector: \"[ngPlural]\", inputs: { ngPlural: \"ngPlural\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgPlural, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngPlural]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: NgLocalization }]; }, propDecorators: { ngPlural: [{\n                type: Input\n            }] } });\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Creates a view that will be added/removed from the parent {@link NgPlural} when the\n * given expression matches the plural expression according to CLDR rules.\n *\n * @usageNotes\n * ```\n * <some-element [ngPlural]=\"value\">\n *   <ng-template ngPluralCase=\"=0\">...</ng-template>\n *   <ng-template ngPluralCase=\"other\">...</ng-template>\n * </some-element>\n *```\n *\n * See {@link NgPlural} for more details and example.\n *\n * @publicApi\n */\nclass NgPluralCase {\n    constructor(value, template, viewContainer, ngPlural) {\n        this.value = value;\n        const isANumber = !isNaN(Number(value));\n        ngPlural.addCase(isANumber ? `=${value}` : value, new SwitchView(viewContainer, template));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgPluralCase, deps: [{ token: 'ngPluralCase', attribute: true }, { token: i0.TemplateRef }, { token: i0.ViewContainerRef }, { token: NgPlural, host: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgPluralCase, isStandalone: true, selector: \"[ngPluralCase]\", ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgPluralCase, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngPluralCase]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Attribute,\n                    args: ['ngPluralCase']\n                }] }, { type: i0.TemplateRef }, { type: i0.ViewContainerRef }, { type: NgPlural, decorators: [{\n                    type: Host\n                }] }]; } });\n\n/**\n * @ngModule CommonModule\n *\n * @usageNotes\n *\n * Set the font of the containing element to the result of an expression.\n *\n * ```\n * <some-element [ngStyle]=\"{'font-style': styleExp}\">...</some-element>\n * ```\n *\n * Set the width of the containing element to a pixel value returned by an expression.\n *\n * ```\n * <some-element [ngStyle]=\"{'max-width.px': widthExp}\">...</some-element>\n * ```\n *\n * Set a collection of style values using an expression that returns key-value pairs.\n *\n * ```\n * <some-element [ngStyle]=\"objExp\">...</some-element>\n * ```\n *\n * @description\n *\n * An attribute directive that updates styles for the containing HTML element.\n * Sets one or more style properties, specified as colon-separated key-value pairs.\n * The key is a style name, with an optional `.<unit>` suffix\n * (such as 'top.px', 'font-style.em').\n * The value is an expression to be evaluated.\n * The resulting non-null value, expressed in the given unit,\n * is assigned to the given style property.\n * If the result of evaluation is null, the corresponding style is removed.\n *\n * @publicApi\n */\nclass NgStyle {\n    constructor(_ngEl, _differs, _renderer) {\n        this._ngEl = _ngEl;\n        this._differs = _differs;\n        this._renderer = _renderer;\n        this._ngStyle = null;\n        this._differ = null;\n    }\n    set ngStyle(values) {\n        this._ngStyle = values;\n        if (!this._differ && values) {\n            this._differ = this._differs.find(values).create();\n        }\n    }\n    ngDoCheck() {\n        if (this._differ) {\n            const changes = this._differ.diff(this._ngStyle);\n            if (changes) {\n                this._applyChanges(changes);\n            }\n        }\n    }\n    _setStyle(nameAndUnit, value) {\n        const [name, unit] = nameAndUnit.split('.');\n        const flags = name.indexOf('-') === -1 ? undefined : RendererStyleFlags2.DashCase;\n        if (value != null) {\n            this._renderer.setStyle(this._ngEl.nativeElement, name, unit ? `${value}${unit}` : value, flags);\n        }\n        else {\n            this._renderer.removeStyle(this._ngEl.nativeElement, name, flags);\n        }\n    }\n    _applyChanges(changes) {\n        changes.forEachRemovedItem((record) => this._setStyle(record.key, null));\n        changes.forEachAddedItem((record) => this._setStyle(record.key, record.currentValue));\n        changes.forEachChangedItem((record) => this._setStyle(record.key, record.currentValue));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgStyle, deps: [{ token: i0.ElementRef }, { token: i0.KeyValueDiffers }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgStyle, isStandalone: true, selector: \"[ngStyle]\", inputs: { ngStyle: \"ngStyle\" }, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgStyle, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngStyle]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.KeyValueDiffers }, { type: i0.Renderer2 }]; }, propDecorators: { ngStyle: [{\n                type: Input,\n                args: ['ngStyle']\n            }] } });\n\n/**\n * @ngModule CommonModule\n *\n * @description\n *\n * Inserts an embedded view from a prepared `TemplateRef`.\n *\n * You can attach a context object to the `EmbeddedViewRef` by setting `[ngTemplateOutletContext]`.\n * `[ngTemplateOutletContext]` should be an object, the object's keys will be available for binding\n * by the local template `let` declarations.\n *\n * @usageNotes\n * ```\n * <ng-container *ngTemplateOutlet=\"templateRefExp; context: contextExp\"></ng-container>\n * ```\n *\n * Using the key `$implicit` in the context object will set its value as default.\n *\n * ### Example\n *\n * {@example common/ngTemplateOutlet/ts/module.ts region='NgTemplateOutlet'}\n *\n * @publicApi\n */\nclass NgTemplateOutlet {\n    constructor(_viewContainerRef) {\n        this._viewContainerRef = _viewContainerRef;\n        this._viewRef = null;\n        /**\n         * A context object to attach to the {@link EmbeddedViewRef}. This should be an\n         * object, the object's keys will be available for binding by the local template `let`\n         * declarations.\n         * Using the key `$implicit` in the context object will set its value as default.\n         */\n        this.ngTemplateOutletContext = null;\n        /**\n         * A string defining the template reference and optionally the context object for the template.\n         */\n        this.ngTemplateOutlet = null;\n        /** Injector to be used within the embedded view. */\n        this.ngTemplateOutletInjector = null;\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (changes['ngTemplateOutlet'] || changes['ngTemplateOutletInjector']) {\n            const viewContainerRef = this._viewContainerRef;\n            if (this._viewRef) {\n                viewContainerRef.remove(viewContainerRef.indexOf(this._viewRef));\n            }\n            if (this.ngTemplateOutlet) {\n                const { ngTemplateOutlet: template, ngTemplateOutletContext: context, ngTemplateOutletInjector: injector, } = this;\n                this._viewRef =\n                    viewContainerRef.createEmbeddedView(template, context, injector ? { injector } : undefined);\n            }\n            else {\n                this._viewRef = null;\n            }\n        }\n        else if (this._viewRef && changes['ngTemplateOutletContext'] && this.ngTemplateOutletContext) {\n            this._viewRef.context = this.ngTemplateOutletContext;\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgTemplateOutlet, deps: [{ token: i0.ViewContainerRef }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: NgTemplateOutlet, isStandalone: true, selector: \"[ngTemplateOutlet]\", inputs: { ngTemplateOutletContext: \"ngTemplateOutletContext\", ngTemplateOutlet: \"ngTemplateOutlet\", ngTemplateOutletInjector: \"ngTemplateOutletInjector\" }, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgTemplateOutlet, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[ngTemplateOutlet]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ViewContainerRef }]; }, propDecorators: { ngTemplateOutletContext: [{\n                type: Input\n            }], ngTemplateOutlet: [{\n                type: Input\n            }], ngTemplateOutletInjector: [{\n                type: Input\n            }] } });\n\n/**\n * A collection of Angular directives that are likely to be used in each and every Angular\n * application.\n */\nconst COMMON_DIRECTIVES = [\n    NgClass,\n    NgComponentOutlet,\n    NgForOf,\n    NgIf,\n    NgTemplateOutlet,\n    NgStyle,\n    NgSwitch,\n    NgSwitchCase,\n    NgSwitchDefault,\n    NgPlural,\n    NgPluralCase,\n];\n\nfunction invalidPipeArgumentError(type, value) {\n    return new ɵRuntimeError(2100 /* RuntimeErrorCode.INVALID_PIPE_ARGUMENT */, ngDevMode && `InvalidPipeArgument: '${value}' for pipe '${ɵstringify(type)}'`);\n}\n\nclass SubscribableStrategy {\n    createSubscription(async, updateLatestValue) {\n        // Subscription can be side-effectful, and we don't want any signal reads which happen in the\n        // side effect of the subscription to be tracked by a component's template when that\n        // subscription is triggered via the async pipe. So we wrap the subscription in `untracked` to\n        // decouple from the current reactive context.\n        //\n        // `untracked` also prevents signal _writes_ which happen in the subscription side effect from\n        // being treated as signal writes during the template evaluation (which throws errors).\n        return untracked(() => async.subscribe({\n            next: updateLatestValue,\n            error: (e) => {\n                throw e;\n            }\n        }));\n    }\n    dispose(subscription) {\n        // See the comment in `createSubscription` above on the use of `untracked`.\n        untracked(() => subscription.unsubscribe());\n    }\n}\nclass PromiseStrategy {\n    createSubscription(async, updateLatestValue) {\n        return async.then(updateLatestValue, e => {\n            throw e;\n        });\n    }\n    dispose(subscription) { }\n}\nconst _promiseStrategy = new PromiseStrategy();\nconst _subscribableStrategy = new SubscribableStrategy();\n/**\n * @ngModule CommonModule\n * @description\n *\n * Unwraps a value from an asynchronous primitive.\n *\n * The `async` pipe subscribes to an `Observable` or `Promise` and returns the latest value it has\n * emitted. When a new value is emitted, the `async` pipe marks the component to be checked for\n * changes. When the component gets destroyed, the `async` pipe unsubscribes automatically to avoid\n * potential memory leaks. When the reference of the expression changes, the `async` pipe\n * automatically unsubscribes from the old `Observable` or `Promise` and subscribes to the new one.\n *\n * @usageNotes\n *\n * ### Examples\n *\n * This example binds a `Promise` to the view. Clicking the `Resolve` button resolves the\n * promise.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipePromise'}\n *\n * It's also possible to use `async` with Observables. The example below binds the `time` Observable\n * to the view. The Observable continuously updates the view with the current time.\n *\n * {@example common/pipes/ts/async_pipe.ts region='AsyncPipeObservable'}\n *\n * @publicApi\n */\nclass AsyncPipe {\n    constructor(ref) {\n        this._latestValue = null;\n        this._subscription = null;\n        this._obj = null;\n        this._strategy = null;\n        // Assign `ref` into `this._ref` manually instead of declaring `_ref` in the constructor\n        // parameter list, as the type of `this._ref` includes `null` unlike the type of `ref`.\n        this._ref = ref;\n    }\n    ngOnDestroy() {\n        if (this._subscription) {\n            this._dispose();\n        }\n        // Clear the `ChangeDetectorRef` and its association with the view data, to mitigate\n        // potential memory leaks in Observables that could otherwise cause the view data to\n        // be retained.\n        // https://github.com/angular/angular/issues/17624\n        this._ref = null;\n    }\n    transform(obj) {\n        if (!this._obj) {\n            if (obj) {\n                this._subscribe(obj);\n            }\n            return this._latestValue;\n        }\n        if (obj !== this._obj) {\n            this._dispose();\n            return this.transform(obj);\n        }\n        return this._latestValue;\n    }\n    _subscribe(obj) {\n        this._obj = obj;\n        this._strategy = this._selectStrategy(obj);\n        this._subscription = this._strategy.createSubscription(obj, (value) => this._updateLatestValue(obj, value));\n    }\n    _selectStrategy(obj) {\n        if (ɵisPromise(obj)) {\n            return _promiseStrategy;\n        }\n        if (ɵisSubscribable(obj)) {\n            return _subscribableStrategy;\n        }\n        throw invalidPipeArgumentError(AsyncPipe, obj);\n    }\n    _dispose() {\n        // Note: `dispose` is only called if a subscription has been initialized before, indicating\n        // that `this._strategy` is also available.\n        this._strategy.dispose(this._subscription);\n        this._latestValue = null;\n        this._subscription = null;\n        this._obj = null;\n    }\n    _updateLatestValue(async, value) {\n        if (async === this._obj) {\n            this._latestValue = value;\n            // Note: `this._ref` is only cleared in `ngOnDestroy` so is known to be available when a\n            // value is being updated.\n            this._ref.markForCheck();\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: AsyncPipe, deps: [{ token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: AsyncPipe, isStandalone: true, name: \"async\", pure: false }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: AsyncPipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'async',\n                    pure: false,\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.ChangeDetectorRef }]; } });\n\n/**\n * Transforms text to all lower case.\n *\n * @see {@link UpperCasePipe}\n * @see {@link TitleCasePipe}\n * @usageNotes\n *\n * The following example defines a view that allows the user to enter\n * text, and then uses the pipe to convert the input text to all lower case.\n *\n * <code-example path=\"common/pipes/ts/lowerupper_pipe.ts\" region='LowerUpperPipe'></code-example>\n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass LowerCasePipe {\n    transform(value) {\n        if (value == null)\n            return null;\n        if (typeof value !== 'string') {\n            throw invalidPipeArgumentError(LowerCasePipe, value);\n        }\n        return value.toLowerCase();\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LowerCasePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: LowerCasePipe, isStandalone: true, name: \"lowercase\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LowerCasePipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'lowercase',\n                    standalone: true,\n                }]\n        }] });\n//\n// Regex below matches any Unicode word and number compatible with ES5. In ES2018 the same result\n// can be achieved by using /[0-9\\p{L}]\\S*/gu and also known as Unicode Property Escapes\n// (https://2ality.com/2017/07/regexp-unicode-property-escapes.html). Since there is no\n// transpilation of this functionality down to ES5 without external tool, the only solution is\n// to use already transpiled form. Example can be found here -\n// https://mothereff.in/regexpu#input=var+regex+%3D+%2F%5B0-9%5Cp%7BL%7D%5D%5CS*%2Fgu%3B%0A%0A&unicodePropertyEscape=1\n//\nconst unicodeWordMatch = 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* Transforms text to title case.\n * Capitalizes the first letter of each word and transforms the\n * rest of the word to lower case.\n * Words are delimited by any whitespace character, such as a space, tab, or line-feed character.\n *\n * @see {@link LowerCasePipe}\n * @see {@link UpperCasePipe}\n *\n * @usageNotes\n * The following example shows the result of transforming various strings into title case.\n *\n * <code-example path=\"common/pipes/ts/titlecase_pipe.ts\" region='TitleCasePipe'></code-example>\n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass TitleCasePipe {\n    transform(value) {\n        if (value == null)\n            return null;\n        if (typeof value !== 'string') {\n            throw invalidPipeArgumentError(TitleCasePipe, value);\n        }\n        return value.replace(unicodeWordMatch, (txt => txt[0].toUpperCase() + txt.slice(1).toLowerCase()));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: TitleCasePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: TitleCasePipe, isStandalone: true, name: \"titlecase\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: TitleCasePipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'titlecase',\n                    standalone: true,\n                }]\n        }] });\n/**\n * Transforms text to all upper case.\n * @see {@link LowerCasePipe}\n * @see {@link TitleCasePipe}\n *\n * @ngModule CommonModule\n * @publicApi\n */\nclass UpperCasePipe {\n    transform(value) {\n        if (value == null)\n            return null;\n        if (typeof value !== 'string') {\n            throw invalidPipeArgumentError(UpperCasePipe, value);\n        }\n        return value.toUpperCase();\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UpperCasePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: UpperCasePipe, isStandalone: true, name: \"uppercase\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UpperCasePipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'uppercase',\n                    standalone: true,\n                }]\n        }] });\n\n/**\n * The default date format of Angular date pipe, which corresponds to the following format:\n * `'MMM d,y'` (e.g. `Jun 15, 2015`)\n */\nconst DEFAULT_DATE_FORMAT = 'mediumDate';\n\n/**\n * Optionally-provided default timezone to use for all instances of `DatePipe` (such as `'+0430'`).\n * If the value isn't provided, the `DatePipe` will use the end-user's local system timezone.\n *\n * @deprecated use DATE_PIPE_DEFAULT_OPTIONS token to configure DatePipe\n */\nconst DATE_PIPE_DEFAULT_TIMEZONE = new InjectionToken('DATE_PIPE_DEFAULT_TIMEZONE');\n/**\n * DI token that allows to provide default configuration for the `DatePipe` instances in an\n * application. The value is an object which can include the following fields:\n * - `dateFormat`: configures the default date format. If not provided, the `DatePipe`\n * will use the 'mediumDate' as a value.\n * - `timezone`: configures the default timezone. If not provided, the `DatePipe` will\n * use the end-user's local system timezone.\n *\n * @see {@link DatePipeConfig}\n *\n * @usageNotes\n *\n * Various date pipe default values can be overwritten by providing this token with\n * the value that has this interface.\n *\n * For example:\n *\n * Override the default date format by providing a value using the token:\n * ```typescript\n * providers: [\n *   {provide: DATE_PIPE_DEFAULT_OPTIONS, useValue: {dateFormat: 'shortDate'}}\n * ]\n * ```\n *\n * Override the default timezone by providing a value using the token:\n * ```typescript\n * providers: [\n *   {provide: DATE_PIPE_DEFAULT_OPTIONS, useValue: {timezone: '-1200'}}\n * ]\n * ```\n */\nconst DATE_PIPE_DEFAULT_OPTIONS = new InjectionToken('DATE_PIPE_DEFAULT_OPTIONS');\n// clang-format off\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a date value according to locale rules.\n *\n * `DatePipe` is executed only when it detects a pure change to the input value.\n * A pure change is either a change to a primitive input value\n * (such as `String`, `Number`, `Boolean`, or `Symbol`),\n * or a changed object reference (such as `Date`, `Array`, `Function`, or `Object`).\n *\n * Note that mutating a `Date` object does not cause the pipe to be rendered again.\n * To ensure that the pipe is executed, you must create a new `Date` object.\n *\n * Only the `en-US` locale data comes with Angular. To localize dates\n * in another language, you must import the corresponding locale data.\n * See the [I18n guide](guide/i18n-common-format-data-locale) for more information.\n *\n * The time zone of the formatted value can be specified either by passing it in as the second\n * parameter of the pipe, or by setting the default through the `DATE_PIPE_DEFAULT_OPTIONS`\n * injection token. The value that is passed in as the second parameter takes precedence over\n * the one defined using the injection token.\n *\n * @see {@link formatDate}\n *\n *\n * @usageNotes\n *\n * The result of this pipe is not reevaluated when the input is mutated. To avoid the need to\n * reformat the date on every change-detection cycle, treat the date as an immutable object\n * and change the reference when the pipe needs to run again.\n *\n * ### Pre-defined format options\n *\n * | Option        | Equivalent to                       | Examples (given in `en-US` locale)              |\n * |---------------|-------------------------------------|-------------------------------------------------|\n * | `'short'`     | `'M/d/yy, h:mm a'`                  | `6/15/15, 9:03 AM`                              |\n * | `'medium'`    | `'MMM d, y, h:mm:ss a'`             | `Jun 15, 2015, 9:03:01 AM`                      |\n * | `'long'`      | `'MMMM d, y, h:mm:ss a z'`          | `June 15, 2015 at 9:03:01 AM GMT+1`             |\n * | `'full'`      | `'EEEE, MMMM d, y, h:mm:ss a zzzz'` | `Monday, June 15, 2015 at 9:03:01 AM GMT+01:00` |\n * | `'shortDate'` | `'M/d/yy'`                          | `6/15/15`                                       |\n * | `'mediumDate'`| `'MMM d, y'`                        | `Jun 15, 2015`                                  |\n * | `'longDate'`  | `'MMMM d, y'`                       | `June 15, 2015`                                 |\n * | `'fullDate'`  | `'EEEE, MMMM d, y'`                 | `Monday, June 15, 2015`                         |\n * | `'shortTime'` | `'h:mm a'`                          | `9:03 AM`                                       |\n * | `'mediumTime'`| `'h:mm:ss a'`                       | `9:03:01 AM`                                    |\n * | `'longTime'`  | `'h:mm:ss a z'`                     | `9:03:01 AM GMT+1`                              |\n * | `'fullTime'`  | `'h:mm:ss a zzzz'`                  | `9:03:01 AM GMT+01:00`                          |\n *\n * ### Custom format options\n *\n * You can construct a format string using symbols to specify the components\n * of a date-time value, as described in the following table.\n * Format details depend on the locale.\n * Fields marked with (*) are only available in the extra data set for the given locale.\n *\n *  | Field type          | Format      | Description                                                   | Example Value                                              |\n *  |-------------------- |-------------|---------------------------------------------------------------|------------------------------------------------------------|\n *  | Era                 | G, GG & GGG | Abbreviated                                                   | AD                                                         |\n *  |                     | GGGG        | Wide                                                          | Anno Domini                                                |\n *  |                     | GGGGG       | Narrow                                                        | A                                                          |\n *  | Year                | y           | Numeric: minimum digits                                       | 2, 20, 201, 2017, 20173                                    |\n *  |                     | yy          | Numeric: 2 digits + zero padded                               | 02, 20, 01, 17, 73                                         |\n *  |                     | yyy         | Numeric: 3 digits + zero padded                               | 002, 020, 201, 2017, 20173                                 |\n *  |                     | yyyy        | Numeric: 4 digits or more + zero padded                       | 0002, 0020, 0201, 2017, 20173                              |\n *  | Week-numbering year | Y           | Numeric: minimum digits                                       | 2, 20, 201, 2017, 20173                                    |\n *  |                     | YY          | Numeric: 2 digits + zero padded                               | 02, 20, 01, 17, 73                                         |\n *  |                     | YYY         | Numeric: 3 digits + zero padded                               | 002, 020, 201, 2017, 20173                                 |\n *  |                     | YYYY        | Numeric: 4 digits or more + zero padded                       | 0002, 0020, 0201, 2017, 20173                              |\n *  | Month               | M           | Numeric: 1 digit                                              | 9, 12                                                      |\n *  |                     | MM          | Numeric: 2 digits + zero padded                               | 09, 12                                                     |\n *  |                     | MMM         | Abbreviated                                                   | Sep                                                        |\n *  |                     | MMMM        | Wide                                                          | September                                                  |\n *  |                     | MMMMM       | Narrow                                                        | S                                                          |\n *  | Month standalone    | L           | Numeric: 1 digit                                              | 9, 12                                                      |\n *  |                     | LL          | Numeric: 2 digits + zero padded                               | 09, 12                                                     |\n *  |                     | LLL         | Abbreviated                                                   | Sep                                                        |\n *  |                     | LLLL        | Wide                                                          | September                                                  |\n *  |                     | LLLLL       | Narrow                                                        | S                                                          |\n *  | Week of year        | w           | Numeric: minimum digits                                       | 1... 53                                                    |\n *  |                     | ww          | Numeric: 2 digits + zero padded                               | 01... 53                                                   |\n *  | Week of month       | W           | Numeric: 1 digit                                              | 1... 5                                                     |\n *  | Day of month        | d           | Numeric: minimum digits                                       | 1                                                          |\n *  |                     | dd          | Numeric: 2 digits + zero padded                               | 01                                                         |\n *  | Week day            | E, EE & EEE | Abbreviated                                                   | Tue                                                        |\n *  |                     | EEEE        | Wide                                                          | Tuesday                                                    |\n *  |                     | EEEEE       | Narrow                                                        | T                                                          |\n *  |                     | EEEEEE      | Short                                                         | Tu                                                         |\n *  | Week day standalone | c, cc       | Numeric: 1 digit                                              | 2                                                          |\n *  |                     | ccc         | Abbreviated                                                   | Tue                                                        |\n *  |                     | cccc        | Wide                                                          | Tuesday                                                    |\n *  |                     | ccccc       | Narrow                                                        | T                                                          |\n *  |                     | cccccc      | Short                                                         | Tu                                                         |\n *  | Period              | a, aa & aaa | Abbreviated                                                   | am/pm or AM/PM                                             |\n *  |                     | aaaa        | Wide (fallback to `a` when missing)                           | ante meridiem/post meridiem                                |\n *  |                     | aaaaa       | Narrow                                                        | a/p                                                        |\n *  | Period*             | B, BB & BBB | Abbreviated                                                   | mid.                                                       |\n *  |                     | BBBB        | Wide                                                          | am, pm, midnight, noon, morning, afternoon, evening, night |\n *  |                     | BBBBB       | Narrow                                                        | md                                                         |\n *  | Period standalone*  | b, bb & bbb | Abbreviated                                                   | mid.                                                       |\n *  |                     | bbbb        | Wide                                                          | am, pm, midnight, noon, morning, afternoon, evening, night |\n *  |                     | bbbbb       | Narrow                                                        | md                                                         |\n *  | Hour 1-12           | h           | Numeric: minimum digits                                       | 1, 12                                                      |\n *  |                     | hh          | Numeric: 2 digits + zero padded                               | 01, 12                                                     |\n *  | Hour 0-23           | H           | Numeric: minimum digits                                       | 0, 23                                                      |\n *  |                     | HH          | Numeric: 2 digits + zero padded                               | 00, 23                                                     |\n *  | Minute              | m           | Numeric: minimum digits                                       | 8, 59                                                      |\n *  |                     | mm          | Numeric: 2 digits + zero padded                               | 08, 59                                                     |\n *  | Second              | s           | Numeric: minimum digits                                       | 0... 59                                                    |\n *  |                     | ss          | Numeric: 2 digits + zero padded                               | 00... 59                                                   |\n *  | Fractional seconds  | S           | Numeric: 1 digit                                              | 0... 9                                                     |\n *  |                     | SS          | Numeric: 2 digits + zero padded                               | 00... 99                                                   |\n *  |                     | SSS         | Numeric: 3 digits + zero padded (= milliseconds)              | 000... 999                                                 |\n *  | Zone                | z, zz & zzz | Short specific non location format (fallback to O)            | GMT-8                                                      |\n *  |                     | zzzz        | Long specific non location format (fallback to OOOO)          | GMT-08:00                                                  |\n *  |                     | Z, ZZ & ZZZ | ISO8601 basic format                                          | -0800                                                      |\n *  |                     | ZZZZ        | Long localized GMT format                                     | GMT-8:00                                                   |\n *  |                     | ZZZZZ       | ISO8601 extended format + Z indicator for offset 0 (= XXXXX)  | -08:00                                                     |\n *  |                     | O, OO & OOO | Short localized GMT format                                    | GMT-8                                                      |\n *  |                     | OOOO        | Long localized GMT format                                     | GMT-08:00                                                  |\n *\n *\n * ### Format examples\n *\n * These examples transform a date into various formats,\n * assuming that `dateObj` is a JavaScript `Date` object for\n * year: 2015, month: 6, day: 15, hour: 21, minute: 43, second: 11,\n * given in the local time for the `en-US` locale.\n *\n * ```\n * {{ dateObj | date }}               // output is 'Jun 15, 2015'\n * {{ dateObj | date:'medium' }}      // output is 'Jun 15, 2015, 9:43:11 PM'\n * {{ dateObj | date:'shortTime' }}   // output is '9:43 PM'\n * {{ dateObj | date:'mm:ss' }}       // output is '43:11'\n * {{ dateObj | date:\"MMM dd, yyyy 'at' hh:mm a\" }}  // output is 'Jun 15, 2015 at 09:43 PM'\n * ```\n *\n * ### Usage example\n *\n * The following component uses a date pipe to display the current date in different formats.\n *\n * ```\n * @Component({\n *  selector: 'date-pipe',\n *  template: `<div>\n *    <p>Today is {{today | date}}</p>\n *    <p>Or if you prefer, {{today | date:'fullDate'}}</p>\n *    <p>The time is {{today | date:'h:mm a z'}}</p>\n *  </div>`\n * })\n * // Get the current date and time as a date-time value.\n * export class DatePipeComponent {\n *   today: number = Date.now();\n * }\n * ```\n *\n * @publicApi\n */\n// clang-format on\nclass DatePipe {\n    constructor(locale, defaultTimezone, defaultOptions) {\n        this.locale = locale;\n        this.defaultTimezone = defaultTimezone;\n        this.defaultOptions = defaultOptions;\n    }\n    transform(value, format, timezone, locale) {\n        if (value == null || value === '' || value !== value)\n            return null;\n        try {\n            const _format = format ?? this.defaultOptions?.dateFormat ?? DEFAULT_DATE_FORMAT;\n            const _timezone = timezone ?? this.defaultOptions?.timezone ?? this.defaultTimezone ?? undefined;\n            return formatDate(value, _format, locale || this.locale, _timezone);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(DatePipe, error.message);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DatePipe, deps: [{ token: LOCALE_ID }, { token: DATE_PIPE_DEFAULT_TIMEZONE, optional: true }, { token: DATE_PIPE_DEFAULT_OPTIONS, optional: true }], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: DatePipe, isStandalone: true, name: \"date\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DatePipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'date',\n                    pure: true,\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [LOCALE_ID]\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DATE_PIPE_DEFAULT_TIMEZONE]\n                }, {\n                    type: Optional\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DATE_PIPE_DEFAULT_OPTIONS]\n                }, {\n                    type: Optional\n                }] }]; } });\n\nconst _INTERPOLATION_REGEXP = /#/g;\n/**\n * @ngModule CommonModule\n * @description\n *\n * Maps a value to a string that pluralizes the value according to locale rules.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/pipes/ts/i18n_pipe.ts region='I18nPluralPipeComponent'}\n *\n * @publicApi\n */\nclass I18nPluralPipe {\n    constructor(_localization) {\n        this._localization = _localization;\n    }\n    /**\n     * @param value the number to be formatted\n     * @param pluralMap an object that mimics the ICU format, see\n     * https://unicode-org.github.io/icu/userguide/format_parse/messages/.\n     * @param locale a `string` defining the locale to use (uses the current {@link LOCALE_ID} by\n     * default).\n     */\n    transform(value, pluralMap, locale) {\n        if (value == null)\n            return '';\n        if (typeof pluralMap !== 'object' || pluralMap === null) {\n            throw invalidPipeArgumentError(I18nPluralPipe, pluralMap);\n        }\n        const key = getPluralCategory(value, Object.keys(pluralMap), this._localization, locale);\n        return pluralMap[key].replace(_INTERPOLATION_REGEXP, value.toString());\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: I18nPluralPipe, deps: [{ token: NgLocalization }], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: I18nPluralPipe, isStandalone: true, name: \"i18nPlural\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: I18nPluralPipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'i18nPlural',\n                    pure: true,\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: NgLocalization }]; } });\n\n/**\n * @ngModule CommonModule\n * @description\n *\n * Generic selector that displays the string that matches the current value.\n *\n * If none of the keys of the `mapping` match the `value`, then the content\n * of the `other` key is returned when present, otherwise an empty string is returned.\n *\n * @usageNotes\n *\n * ### Example\n *\n * {@example common/pipes/ts/i18n_pipe.ts region='I18nSelectPipeComponent'}\n *\n * @publicApi\n */\nclass I18nSelectPipe {\n    /**\n     * @param value a string to be internationalized.\n     * @param mapping an object that indicates the text that should be displayed\n     * for different values of the provided `value`.\n     */\n    transform(value, mapping) {\n        if (value == null)\n            return '';\n        if (typeof mapping !== 'object' || typeof value !== 'string') {\n            throw invalidPipeArgumentError(I18nSelectPipe, mapping);\n        }\n        if (mapping.hasOwnProperty(value)) {\n            return mapping[value];\n        }\n        if (mapping.hasOwnProperty('other')) {\n            return mapping['other'];\n        }\n        return '';\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: I18nSelectPipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: I18nSelectPipe, isStandalone: true, name: \"i18nSelect\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: I18nSelectPipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'i18nSelect',\n                    pure: true,\n                    standalone: true,\n                }]\n        }] });\n\n/**\n * @ngModule CommonModule\n * @description\n *\n * Converts a value into its JSON-format representation.  Useful for debugging.\n *\n * @usageNotes\n *\n * The following component uses a JSON pipe to convert an object\n * to JSON format, and displays the string in both formats for comparison.\n *\n * {@example common/pipes/ts/json_pipe.ts region='JsonPipe'}\n *\n * @publicApi\n */\nclass JsonPipe {\n    /**\n     * @param value A value of any type to convert into a JSON-format string.\n     */\n    transform(value) {\n        return JSON.stringify(value, null, 2);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonPipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonPipe, isStandalone: true, name: \"json\", pure: false }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonPipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'json',\n                    pure: false,\n                    standalone: true,\n                }]\n        }] });\n\nfunction makeKeyValuePair(key, value) {\n    return { key: key, value: value };\n}\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms Object or Map into an array of key value pairs.\n *\n * The output array will be ordered by keys.\n * By default the comparator will be by Unicode point value.\n * You can optionally pass a compareFn if your keys are complex types.\n *\n * @usageNotes\n * ### Examples\n *\n * This examples show how an Object or a Map can be iterated by ngFor with the use of this\n * keyvalue pipe.\n *\n * {@example common/pipes/ts/keyvalue_pipe.ts region='KeyValuePipe'}\n *\n * @publicApi\n */\nclass KeyValuePipe {\n    constructor(differs) {\n        this.differs = differs;\n        this.keyValues = [];\n        this.compareFn = defaultComparator;\n    }\n    transform(input, compareFn = defaultComparator) {\n        if (!input || (!(input instanceof Map) && typeof input !== 'object')) {\n            return null;\n        }\n        if (!this.differ) {\n            // make a differ for whatever type we've been passed in\n            this.differ = this.differs.find(input).create();\n        }\n        const differChanges = this.differ.diff(input);\n        const compareFnChanged = compareFn !== this.compareFn;\n        if (differChanges) {\n            this.keyValues = [];\n            differChanges.forEachItem((r) => {\n                this.keyValues.push(makeKeyValuePair(r.key, r.currentValue));\n            });\n        }\n        if (differChanges || compareFnChanged) {\n            this.keyValues.sort(compareFn);\n            this.compareFn = compareFn;\n        }\n        return this.keyValues;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: KeyValuePipe, deps: [{ token: i0.KeyValueDiffers }], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: KeyValuePipe, isStandalone: true, name: \"keyvalue\", pure: false }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: KeyValuePipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'keyvalue',\n                    pure: false,\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: i0.KeyValueDiffers }]; } });\nfunction defaultComparator(keyValueA, keyValueB) {\n    const a = keyValueA.key;\n    const b = keyValueB.key;\n    // if same exit with 0;\n    if (a === b)\n        return 0;\n    // make sure that undefined are at the end of the sort.\n    if (a === undefined)\n        return 1;\n    if (b === undefined)\n        return -1;\n    // make sure that nulls are at the end of the sort.\n    if (a === null)\n        return 1;\n    if (b === null)\n        return -1;\n    if (typeof a == 'string' && typeof b == 'string') {\n        return a < b ? -1 : 1;\n    }\n    if (typeof a == 'number' && typeof b == 'number') {\n        return a - b;\n    }\n    if (typeof a == 'boolean' && typeof b == 'boolean') {\n        return a < b ? -1 : 1;\n    }\n    // `a` and `b` are of different types. Compare their string values.\n    const aString = String(a);\n    const bString = String(b);\n    return aString == bString ? 0 : aString < bString ? -1 : 1;\n}\n\n/**\n * @ngModule CommonModule\n * @description\n *\n * Formats a value according to digit options and locale rules.\n * Locale determines group sizing and separator,\n * decimal point character, and other locale-specific configurations.\n *\n * @see {@link formatNumber}\n *\n * @usageNotes\n *\n * ### digitsInfo\n *\n * The value's decimal representation is specified by the `digitsInfo`\n * parameter, written in the following format:<br>\n *\n * ```\n * {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}\n * ```\n *\n *  - `minIntegerDigits`:\n * The minimum number of integer digits before the decimal point.\n * Default is 1.\n *\n * - `minFractionDigits`:\n * The minimum number of digits after the decimal point.\n * Default is 0.\n *\n *  - `maxFractionDigits`:\n * The maximum number of digits after the decimal point.\n * Default is 3.\n *\n * If the formatted value is truncated it will be rounded using the \"to-nearest\" method:\n *\n * ```\n * {{3.6 | number: '1.0-0'}}\n * <!--will output '4'-->\n *\n * {{-3.6 | number:'1.0-0'}}\n * <!--will output '-4'-->\n * ```\n *\n * ### locale\n *\n * `locale` will format a value according to locale rules.\n * Locale determines group sizing and separator,\n * decimal point character, and other locale-specific configurations.\n *\n * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n *\n * See [Setting your app locale](guide/i18n-common-locale-id).\n *\n * ### Example\n *\n * The following code shows how the pipe transforms values\n * according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * <code-example path=\"common/pipes/ts/number_pipe.ts\" region='NumberPipe'></code-example>\n *\n * @publicApi\n */\nclass DecimalPipe {\n    constructor(_locale) {\n        this._locale = _locale;\n    }\n    /**\n     * @param value The value to be formatted.\n     * @param digitsInfo Sets digit and decimal representation.\n     * [See more](#digitsinfo).\n     * @param locale Specifies what locale format rules to use.\n     * [See more](#locale).\n     */\n    transform(value, digitsInfo, locale) {\n        if (!isValue(value))\n            return null;\n        locale = locale || this._locale;\n        try {\n            const num = strToNumber(value);\n            return formatNumber(num, locale, digitsInfo);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(DecimalPipe, error.message);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DecimalPipe, deps: [{ token: LOCALE_ID }], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: DecimalPipe, isStandalone: true, name: \"number\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DecimalPipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'number',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [LOCALE_ID]\n                }] }]; } });\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms a number to a percentage\n * string, formatted according to locale rules that determine group sizing and\n * separator, decimal-point character, and other locale-specific\n * configurations.\n *\n * @see {@link formatPercent}\n *\n * @usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * <code-example path=\"common/pipes/ts/percent_pipe.ts\" region='PercentPipe'></code-example>\n *\n * @publicApi\n */\nclass PercentPipe {\n    constructor(_locale) {\n        this._locale = _locale;\n    }\n    /**\n     *\n     * @param value The number to be formatted as a percentage.\n     * @param digitsInfo Decimal representation options, specified by a string\n     * in the following format:<br>\n     * <code>{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}</code>.\n     *   - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n     * Default is `1`.\n     *   - `minFractionDigits`: The minimum number of digits after the decimal point.\n     * Default is `0`.\n     *   - `maxFractionDigits`: The maximum number of digits after the decimal point.\n     * Default is `0`.\n     * @param locale A locale code for the locale format rules to use.\n     * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n     * See [Setting your app locale](guide/i18n-common-locale-id).\n     */\n    transform(value, digitsInfo, locale) {\n        if (!isValue(value))\n            return null;\n        locale = locale || this._locale;\n        try {\n            const num = strToNumber(value);\n            return formatPercent(num, locale, digitsInfo);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(PercentPipe, error.message);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PercentPipe, deps: [{ token: LOCALE_ID }], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: PercentPipe, isStandalone: true, name: \"percent\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PercentPipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'percent',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [LOCALE_ID]\n                }] }]; } });\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms a number to a currency string, formatted according to locale rules\n * that determine group sizing and separator, decimal-point character,\n * and other locale-specific configurations.\n *\n *\n * @see {@link getCurrencySymbol}\n * @see {@link formatCurrency}\n *\n * @usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * <code-example path=\"common/pipes/ts/currency_pipe.ts\" region='CurrencyPipe'></code-example>\n *\n * @publicApi\n */\nclass CurrencyPipe {\n    constructor(_locale, _defaultCurrencyCode = 'USD') {\n        this._locale = _locale;\n        this._defaultCurrencyCode = _defaultCurrencyCode;\n    }\n    /**\n     *\n     * @param value The number to be formatted as currency.\n     * @param currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) currency code,\n     * such as `USD` for the US dollar and `EUR` for the euro. The default currency code can be\n     * configured using the `DEFAULT_CURRENCY_CODE` injection token.\n     * @param display The format for the currency indicator. One of the following:\n     *   - `code`: Show the code (such as `USD`).\n     *   - `symbol`(default): Show the symbol (such as `$`).\n     *   - `symbol-narrow`: Use the narrow symbol for locales that have two symbols for their\n     * currency.\n     * For example, the Canadian dollar CAD has the symbol `CA$` and the symbol-narrow `$`. If the\n     * locale has no narrow symbol, uses the standard symbol for the locale.\n     *   - String: Use the given string value instead of a code or a symbol.\n     * For example, an empty string will suppress the currency & symbol.\n     *   - Boolean (marked deprecated in v5): `true` for symbol and false for `code`.\n     *\n     * @param digitsInfo Decimal representation options, specified by a string\n     * in the following format:<br>\n     * <code>{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}</code>.\n     *   - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n     * Default is `1`.\n     *   - `minFractionDigits`: The minimum number of digits after the decimal point.\n     * Default is `2`.\n     *   - `maxFractionDigits`: The maximum number of digits after the decimal point.\n     * Default is `2`.\n     * If not provided, the number will be formatted with the proper amount of digits,\n     * depending on what the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) specifies.\n     * For example, the Canadian dollar has 2 digits, whereas the Chilean peso has none.\n     * @param locale A locale code for the locale format rules to use.\n     * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n     * See [Setting your app locale](guide/i18n-common-locale-id).\n     */\n    transform(value, currencyCode = this._defaultCurrencyCode, display = 'symbol', digitsInfo, locale) {\n        if (!isValue(value))\n            return null;\n        locale = locale || this._locale;\n        if (typeof display === 'boolean') {\n            if ((typeof ngDevMode === 'undefined' || ngDevMode) && console && console.warn) {\n                console.warn(`Warning: the currency pipe has been changed in Angular v5. The symbolDisplay option (third parameter) is now a string instead of a boolean. The accepted values are \"code\", \"symbol\" or \"symbol-narrow\".`);\n            }\n            display = display ? 'symbol' : 'code';\n        }\n        let currency = currencyCode || this._defaultCurrencyCode;\n        if (display !== 'code') {\n            if (display === 'symbol' || display === 'symbol-narrow') {\n                currency = getCurrencySymbol(currency, display === 'symbol' ? 'wide' : 'narrow', locale);\n            }\n            else {\n                currency = display;\n            }\n        }\n        try {\n            const num = strToNumber(value);\n            return formatCurrency(num, locale, currency, currencyCode, digitsInfo);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(CurrencyPipe, error.message);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CurrencyPipe, deps: [{ token: LOCALE_ID }, { token: DEFAULT_CURRENCY_CODE }], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: CurrencyPipe, isStandalone: true, name: \"currency\" }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CurrencyPipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'currency',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [LOCALE_ID]\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DEFAULT_CURRENCY_CODE]\n                }] }]; } });\nfunction isValue(value) {\n    return !(value == null || value === '' || value !== value);\n}\n/**\n * Transforms a string into a number (if needed).\n */\nfunction strToNumber(value) {\n    // Convert strings to numbers\n    if (typeof value === 'string' && !isNaN(Number(value) - parseFloat(value))) {\n        return Number(value);\n    }\n    if (typeof value !== 'number') {\n        throw new Error(`${value} is not a number`);\n    }\n    return value;\n}\n\n/**\n * @ngModule CommonModule\n * @description\n *\n * Creates a new `Array` or `String` containing a subset (slice) of the elements.\n *\n * @usageNotes\n *\n * All behavior is based on the expected behavior of the JavaScript API `Array.prototype.slice()`\n * and `String.prototype.slice()`.\n *\n * When operating on an `Array`, the returned `Array` is always a copy even when all\n * the elements are being returned.\n *\n * When operating on a blank value, the pipe returns the blank value.\n *\n * ### List Example\n *\n * This `ngFor` example:\n *\n * {@example common/pipes/ts/slice_pipe.ts region='SlicePipe_list'}\n *\n * produces the following:\n *\n * ```html\n * <li>b</li>\n * <li>c</li>\n * ```\n *\n * ### String Examples\n *\n * {@example common/pipes/ts/slice_pipe.ts region='SlicePipe_string'}\n *\n * @publicApi\n */\nclass SlicePipe {\n    transform(value, start, end) {\n        if (value == null)\n            return null;\n        if (!this.supports(value)) {\n            throw invalidPipeArgumentError(SlicePipe, value);\n        }\n        return value.slice(start, end);\n    }\n    supports(obj) {\n        return typeof obj === 'string' || Array.isArray(obj);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SlicePipe, deps: [], target: i0.ɵɵFactoryTarget.Pipe }); }\n    static { this.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: SlicePipe, isStandalone: true, name: \"slice\", pure: false }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SlicePipe, decorators: [{\n            type: Pipe,\n            args: [{\n                    name: 'slice',\n                    pure: false,\n                    standalone: true,\n                }]\n        }] });\n\n/**\n * @module\n * @description\n * This module provides a set of common Pipes.\n */\n/**\n * A collection of Angular pipes that are likely to be used in each and every application.\n */\nconst COMMON_PIPES = [\n    AsyncPipe,\n    UpperCasePipe,\n    LowerCasePipe,\n    JsonPipe,\n    SlicePipe,\n    DecimalPipe,\n    PercentPipe,\n    TitleCasePipe,\n    CurrencyPipe,\n    DatePipe,\n    I18nPluralPipe,\n    I18nSelectPipe,\n    KeyValuePipe,\n];\n\n// Note: This does not contain the location providers,\n// as they need some platform specific implementations to work.\n/**\n * Exports all the basic Angular directives and pipes,\n * such as `NgIf`, `NgForOf`, `DecimalPipe`, and so on.\n * Re-exported by `BrowserModule`, which is included automatically in the root\n * `AppModule` when you create a new app with the CLI `new` command.\n *\n * @publicApi\n */\nclass CommonModule {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CommonModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: CommonModule, imports: [NgClass, NgComponentOutlet, NgForOf, NgIf, NgTemplateOutlet, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgPlural, NgPluralCase, AsyncPipe, UpperCasePipe, LowerCasePipe, JsonPipe, SlicePipe, DecimalPipe, PercentPipe, TitleCasePipe, CurrencyPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, KeyValuePipe], exports: [NgClass, NgComponentOutlet, NgForOf, NgIf, NgTemplateOutlet, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgPlural, NgPluralCase, AsyncPipe, UpperCasePipe, LowerCasePipe, JsonPipe, SlicePipe, DecimalPipe, PercentPipe, TitleCasePipe, CurrencyPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, KeyValuePipe] }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CommonModule }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CommonModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    imports: [COMMON_DIRECTIVES, COMMON_PIPES],\n                    exports: [COMMON_DIRECTIVES, COMMON_PIPES],\n                }]\n        }] });\n\nconst PLATFORM_BROWSER_ID = 'browser';\nconst PLATFORM_SERVER_ID = 'server';\nconst PLATFORM_WORKER_APP_ID = 'browserWorkerApp';\nconst PLATFORM_WORKER_UI_ID = 'browserWorkerUi';\n/**\n * Returns whether a platform id represents a browser platform.\n * @publicApi\n */\nfunction isPlatformBrowser(platformId) {\n    return platformId === PLATFORM_BROWSER_ID;\n}\n/**\n * Returns whether a platform id represents a server platform.\n * @publicApi\n */\nfunction isPlatformServer(platformId) {\n    return platformId === PLATFORM_SERVER_ID;\n}\n/**\n * Returns whether a platform id represents a web worker app platform.\n * @publicApi\n * @deprecated This function serves no purpose since the removal of the Webworker platform. It will\n *     always return `false`.\n */\nfunction isPlatformWorkerApp(platformId) {\n    return platformId === PLATFORM_WORKER_APP_ID;\n}\n/**\n * Returns whether a platform id represents a web worker UI platform.\n * @publicApi\n * @deprecated This function serves no purpose since the removal of the Webworker platform. It will\n *     always return `false`.\n */\nfunction isPlatformWorkerUi(platformId) {\n    return platformId === PLATFORM_WORKER_UI_ID;\n}\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of the common package.\n */\n/**\n * @publicApi\n */\nconst VERSION = new Version('16.2.12');\n\n/**\n * Defines a scroll position manager. Implemented by `BrowserViewportScroller`.\n *\n * @publicApi\n */\nclass ViewportScroller {\n    // De-sugared tree-shakable injection\n    // See #23917\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({\n        token: ViewportScroller,\n        providedIn: 'root',\n        factory: () => new BrowserViewportScroller(ɵɵinject(DOCUMENT), window)\n    }); }\n}\n/**\n * Manages the scroll position for a browser window.\n */\nclass BrowserViewportScroller {\n    constructor(document, window) {\n        this.document = document;\n        this.window = window;\n        this.offset = () => [0, 0];\n    }\n    /**\n     * Configures the top offset used when scrolling to an anchor.\n     * @param offset A position in screen coordinates (a tuple with x and y values)\n     * or a function that returns the top offset position.\n     *\n     */\n    setOffset(offset) {\n        if (Array.isArray(offset)) {\n            this.offset = () => offset;\n        }\n        else {\n            this.offset = offset;\n        }\n    }\n    /**\n     * Retrieves the current scroll position.\n     * @returns The position in screen coordinates.\n     */\n    getScrollPosition() {\n        if (this.supportsScrolling()) {\n            return [this.window.pageXOffset, this.window.pageYOffset];\n        }\n        else {\n            return [0, 0];\n        }\n    }\n    /**\n     * Sets the scroll position.\n     * @param position The new position in screen coordinates.\n     */\n    scrollToPosition(position) {\n        if (this.supportsScrolling()) {\n            this.window.scrollTo(position[0], position[1]);\n        }\n    }\n    /**\n     * Scrolls to an element and attempts to focus the element.\n     *\n     * Note that the function name here is misleading in that the target string may be an ID for a\n     * non-anchor element.\n     *\n     * @param target The ID of an element or name of the anchor.\n     *\n     * @see https://html.spec.whatwg.org/#the-indicated-part-of-the-document\n     * @see https://html.spec.whatwg.org/#scroll-to-fragid\n     */\n    scrollToAnchor(target) {\n        if (!this.supportsScrolling()) {\n            return;\n        }\n        const elSelected = findAnchorFromDocument(this.document, target);\n        if (elSelected) {\n            this.scrollToElement(elSelected);\n            // After scrolling to the element, the spec dictates that we follow the focus steps for the\n            // target. Rather than following the robust steps, simply attempt focus.\n            //\n            // @see https://html.spec.whatwg.org/#get-the-focusable-area\n            // @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/focus\n            // @see https://html.spec.whatwg.org/#focusable-area\n            elSelected.focus();\n        }\n    }\n    /**\n     * Disables automatic scroll restoration provided by the browser.\n     */\n    setHistoryScrollRestoration(scrollRestoration) {\n        if (this.supportsScrolling()) {\n            this.window.history.scrollRestoration = scrollRestoration;\n        }\n    }\n    /**\n     * Scrolls to an element using the native offset and the specified offset set on this scroller.\n     *\n     * The offset can be used when we know that there is a floating header and scrolling naively to an\n     * element (ex: `scrollIntoView`) leaves the element hidden behind the floating header.\n     */\n    scrollToElement(el) {\n        const rect = el.getBoundingClientRect();\n        const left = rect.left + this.window.pageXOffset;\n        const top = rect.top + this.window.pageYOffset;\n        const offset = this.offset();\n        this.window.scrollTo(left - offset[0], top - offset[1]);\n    }\n    supportsScrolling() {\n        try {\n            return !!this.window && !!this.window.scrollTo && 'pageXOffset' in this.window;\n        }\n        catch {\n            return false;\n        }\n    }\n}\nfunction findAnchorFromDocument(document, target) {\n    const documentResult = document.getElementById(target) || document.getElementsByName(target)[0];\n    if (documentResult) {\n        return documentResult;\n    }\n    // `getElementById` and `getElementsByName` won't pierce through the shadow DOM so we\n    // have to traverse the DOM manually and do the lookup through the shadow roots.\n    if (typeof document.createTreeWalker === 'function' && document.body &&\n        typeof document.body.attachShadow === 'function') {\n        const treeWalker = document.createTreeWalker(document.body, NodeFilter.SHOW_ELEMENT);\n        let currentNode = treeWalker.currentNode;\n        while (currentNode) {\n            const shadowRoot = currentNode.shadowRoot;\n            if (shadowRoot) {\n                // Note that `ShadowRoot` doesn't support `getElementsByName`\n                // so we have to fall back to `querySelector`.\n                const result = shadowRoot.getElementById(target) || shadowRoot.querySelector(`[name=\"${target}\"]`);\n                if (result) {\n                    return result;\n                }\n            }\n            currentNode = treeWalker.nextNode();\n        }\n    }\n    return null;\n}\n/**\n * Provides an empty implementation of the viewport scroller.\n */\nclass NullViewportScroller {\n    /**\n     * Empty implementation\n     */\n    setOffset(offset) { }\n    /**\n     * Empty implementation\n     */\n    getScrollPosition() {\n        return [0, 0];\n    }\n    /**\n     * Empty implementation\n     */\n    scrollToPosition(position) { }\n    /**\n     * Empty implementation\n     */\n    scrollToAnchor(anchor) { }\n    /**\n     * Empty implementation\n     */\n    setHistoryScrollRestoration(scrollRestoration) { }\n}\n\n/**\n * A wrapper around the `XMLHttpRequest` constructor.\n *\n * @publicApi\n */\nclass XhrFactory {\n}\n\n// Converts a string that represents a URL into a URL class instance.\nfunction getUrl(src, win) {\n    // Don't use a base URL is the URL is absolute.\n    return isAbsoluteUrl(src) ? new URL(src) : new URL(src, win.location.href);\n}\n// Checks whether a URL is absolute (i.e. starts with `http://` or `https://`).\nfunction isAbsoluteUrl(src) {\n    return /^https?:\\/\\//.test(src);\n}\n// Given a URL, extract the hostname part.\n// If a URL is a relative one - the URL is returned as is.\nfunction extractHostname(url) {\n    return isAbsoluteUrl(url) ? (new URL(url)).hostname : url;\n}\nfunction isValidPath(path) {\n    const isString = typeof path === 'string';\n    if (!isString || path.trim() === '') {\n        return false;\n    }\n    // Calling new URL() will throw if the path string is malformed\n    try {\n        const url = new URL(path);\n        return true;\n    }\n    catch {\n        return false;\n    }\n}\nfunction normalizePath(path) {\n    return path.endsWith('/') ? path.slice(0, -1) : path;\n}\nfunction normalizeSrc(src) {\n    return src.startsWith('/') ? src.slice(1) : src;\n}\n\n/**\n * Noop image loader that does no transformation to the original src and just returns it as is.\n * This loader is used as a default one if more specific logic is not provided in an app config.\n *\n * @see {@link ImageLoader}\n * @see {@link NgOptimizedImage}\n */\nconst noopImageLoader = (config) => config.src;\n/**\n * Injection token that configures the image loader function.\n *\n * @see {@link ImageLoader}\n * @see {@link NgOptimizedImage}\n * @publicApi\n */\nconst IMAGE_LOADER = new InjectionToken('ImageLoader', {\n    providedIn: 'root',\n    factory: () => noopImageLoader,\n});\n/**\n * Internal helper function that makes it easier to introduce custom image loaders for the\n * `NgOptimizedImage` directive. It is enough to specify a URL builder function to obtain full DI\n * configuration for a given loader: a DI token corresponding to the actual loader function, plus DI\n * tokens managing preconnect check functionality.\n * @param buildUrlFn a function returning a full URL based on loader's configuration\n * @param exampleUrls example of full URLs for a given loader (used in error messages)\n * @returns a set of DI providers corresponding to the configured image loader\n */\nfunction createImageLoader(buildUrlFn, exampleUrls) {\n    return function provideImageLoader(path) {\n        if (!isValidPath(path)) {\n            throwInvalidPathError(path, exampleUrls || []);\n        }\n        // The trailing / is stripped (if provided) to make URL construction (concatenation) easier in\n        // the individual loader functions.\n        path = normalizePath(path);\n        const loaderFn = (config) => {\n            if (isAbsoluteUrl(config.src)) {\n                // Image loader functions expect an image file name (e.g. `my-image.png`)\n                // or a relative path + a file name (e.g. `/a/b/c/my-image.png`) as an input,\n                // so the final absolute URL can be constructed.\n                // When an absolute URL is provided instead - the loader can not\n                // build a final URL, thus the error is thrown to indicate that.\n                throwUnexpectedAbsoluteUrlError(path, config.src);\n            }\n            return buildUrlFn(path, { ...config, src: normalizeSrc(config.src) });\n        };\n        const providers = [{ provide: IMAGE_LOADER, useValue: loaderFn }];\n        return providers;\n    };\n}\nfunction throwInvalidPathError(path, exampleUrls) {\n    throw new ɵRuntimeError(2959 /* RuntimeErrorCode.INVALID_LOADER_ARGUMENTS */, ngDevMode &&\n        `Image loader has detected an invalid path (\\`${path}\\`). ` +\n            `To fix this, supply a path using one of the following formats: ${exampleUrls.join(' or ')}`);\n}\nfunction throwUnexpectedAbsoluteUrlError(path, url) {\n    throw new ɵRuntimeError(2959 /* RuntimeErrorCode.INVALID_LOADER_ARGUMENTS */, ngDevMode &&\n        `Image loader has detected a \\`<img>\\` tag with an invalid \\`ngSrc\\` attribute: ${url}. ` +\n            `This image loader expects \\`ngSrc\\` to be a relative URL - ` +\n            `however the provided value is an absolute URL. ` +\n            `To fix this, provide \\`ngSrc\\` as a path relative to the base URL ` +\n            `configured for this loader (\\`${path}\\`).`);\n}\n\n/**\n * Function that generates an ImageLoader for [Cloudflare Image\n * Resizing](https://developers.cloudflare.com/images/image-resizing/) and turns it into an Angular\n * provider. Note: Cloudflare has multiple image products - this provider is specifically for\n * Cloudflare Image Resizing; it will not work with Cloudflare Images or Cloudflare Polish.\n *\n * @param path Your domain name, e.g. https://mysite.com\n * @returns Provider that provides an ImageLoader function\n *\n * @publicApi\n */\nconst provideCloudflareLoader = createImageLoader(createCloudflareUrl, ngDevMode ? ['https://<ZONE>/cdn-cgi/image/<OPTIONS>/<SOURCE-IMAGE>'] : undefined);\nfunction createCloudflareUrl(path, config) {\n    let params = `format=auto`;\n    if (config.width) {\n        params += `,width=${config.width}`;\n    }\n    // Cloudflare image URLs format:\n    // https://developers.cloudflare.com/images/image-resizing/url-format/\n    return `${path}/cdn-cgi/image/${params}/${config.src}`;\n}\n\n/**\n * Name and URL tester for Cloudinary.\n */\nconst cloudinaryLoaderInfo = {\n    name: 'Cloudinary',\n    testUrl: isCloudinaryUrl\n};\nconst CLOUDINARY_LOADER_REGEX = /https?\\:\\/\\/[^\\/]+\\.cloudinary\\.com\\/.+/;\n/**\n * Tests whether a URL is from Cloudinary CDN.\n */\nfunction isCloudinaryUrl(url) {\n    return CLOUDINARY_LOADER_REGEX.test(url);\n}\n/**\n * Function that generates an ImageLoader for Cloudinary and turns it into an Angular provider.\n *\n * @param path Base URL of your Cloudinary images\n * This URL should match one of the following formats:\n * https://res.cloudinary.com/mysite\n * https://mysite.cloudinary.com\n * https://subdomain.mysite.com\n * @returns Set of providers to configure the Cloudinary loader.\n *\n * @publicApi\n */\nconst provideCloudinaryLoader = createImageLoader(createCloudinaryUrl, ngDevMode ?\n    [\n        'https://res.cloudinary.com/mysite', 'https://mysite.cloudinary.com',\n        'https://subdomain.mysite.com'\n    ] :\n    undefined);\nfunction createCloudinaryUrl(path, config) {\n    // Cloudinary image URLformat:\n    // https://cloudinary.com/documentation/image_transformations#transformation_url_structure\n    // Example of a Cloudinary image URL:\n    // https://res.cloudinary.com/mysite/image/upload/c_scale,f_auto,q_auto,w_600/marketing/tile-topics-m.png\n    let params = `f_auto,q_auto`; // sets image format and quality to \"auto\"\n    if (config.width) {\n        params += `,w_${config.width}`;\n    }\n    return `${path}/image/upload/${params}/${config.src}`;\n}\n\n/**\n * Name and URL tester for ImageKit.\n */\nconst imageKitLoaderInfo = {\n    name: 'ImageKit',\n    testUrl: isImageKitUrl,\n};\nconst IMAGE_KIT_LOADER_REGEX = /https?\\:\\/\\/[^\\/]+\\.imagekit\\.io\\/.+/;\n/**\n * Tests whether a URL is from ImageKit CDN.\n */\nfunction isImageKitUrl(url) {\n    return IMAGE_KIT_LOADER_REGEX.test(url);\n}\n/**\n * Function that generates an ImageLoader for ImageKit and turns it into an Angular provider.\n *\n * @param path Base URL of your ImageKit images\n * This URL should match one of the following formats:\n * https://ik.imagekit.io/myaccount\n * https://subdomain.mysite.com\n * @returns Set of providers to configure the ImageKit loader.\n *\n * @publicApi\n */\nconst provideImageKitLoader = createImageLoader(createImagekitUrl, ngDevMode ? ['https://ik.imagekit.io/mysite', 'https://subdomain.mysite.com'] : undefined);\nfunction createImagekitUrl(path, config) {\n    // Example of an ImageKit image URL:\n    // https://ik.imagekit.io/demo/tr:w-300,h-300/medium_cafe_B1iTdD0C.jpg\n    const { src, width } = config;\n    let urlSegments;\n    if (width) {\n        const params = `tr:w-${width}`;\n        urlSegments = [path, params, src];\n    }\n    else {\n        urlSegments = [path, src];\n    }\n    return urlSegments.join('/');\n}\n\n/**\n * Name and URL tester for Imgix.\n */\nconst imgixLoaderInfo = {\n    name: 'Imgix',\n    testUrl: isImgixUrl\n};\nconst IMGIX_LOADER_REGEX = /https?\\:\\/\\/[^\\/]+\\.imgix\\.net\\/.+/;\n/**\n * Tests whether a URL is from Imgix CDN.\n */\nfunction isImgixUrl(url) {\n    return IMGIX_LOADER_REGEX.test(url);\n}\n/**\n * Function that generates an ImageLoader for Imgix and turns it into an Angular provider.\n *\n * @param path path to the desired Imgix origin,\n * e.g. https://somepath.imgix.net or https://images.mysite.com\n * @returns Set of providers to configure the Imgix loader.\n *\n * @publicApi\n */\nconst provideImgixLoader = createImageLoader(createImgixUrl, ngDevMode ? ['https://somepath.imgix.net/'] : undefined);\nfunction createImgixUrl(path, config) {\n    const url = new URL(`${path}/${config.src}`);\n    // This setting ensures the smallest allowable format is set.\n    url.searchParams.set('auto', 'format');\n    if (config.width) {\n        url.searchParams.set('w', config.width.toString());\n    }\n    return url.href;\n}\n\n// Assembles directive details string, useful for error messages.\nfunction imgDirectiveDetails(ngSrc, includeNgSrc = true) {\n    const ngSrcInfo = includeNgSrc ? `(activated on an <img> element with the \\`ngSrc=\"${ngSrc}\"\\`) ` : '';\n    return `The NgOptimizedImage directive ${ngSrcInfo}has detected that`;\n}\n\n/**\n * Asserts that the application is in development mode. Throws an error if the application is in\n * production mode. This assert can be used to make sure that there is no dev-mode code invoked in\n * the prod mode accidentally.\n */\nfunction assertDevMode(checkName) {\n    if (!ngDevMode) {\n        throw new ɵRuntimeError(2958 /* RuntimeErrorCode.UNEXPECTED_DEV_MODE_CHECK_IN_PROD_MODE */, `Unexpected invocation of the ${checkName} in the prod mode. ` +\n            `Please make sure that the prod mode is enabled for production builds.`);\n    }\n}\n\n/**\n * Observer that detects whether an image with `NgOptimizedImage`\n * is treated as a Largest Contentful Paint (LCP) element. If so,\n * asserts that the image has the `priority` attribute.\n *\n * Note: this is a dev-mode only class and it does not appear in prod bundles,\n * thus there is no `ngDevMode` use in the code.\n *\n * Based on https://web.dev/lcp/#measure-lcp-in-javascript.\n */\nclass LCPImageObserver {\n    constructor() {\n        // Map of full image URLs -> original `ngSrc` values.\n        this.images = new Map();\n        this.window = null;\n        this.observer = null;\n        assertDevMode('LCP checker');\n        const win = inject(DOCUMENT).defaultView;\n        if (typeof win !== 'undefined' && typeof PerformanceObserver !== 'undefined') {\n            this.window = win;\n            this.observer = this.initPerformanceObserver();\n        }\n    }\n    /**\n     * Inits PerformanceObserver and subscribes to LCP events.\n     * Based on https://web.dev/lcp/#measure-lcp-in-javascript\n     */\n    initPerformanceObserver() {\n        const observer = new PerformanceObserver((entryList) => {\n            const entries = entryList.getEntries();\n            if (entries.length === 0)\n                return;\n            // We use the latest entry produced by the `PerformanceObserver` as the best\n            // signal on which element is actually an LCP one. As an example, the first image to load on\n            // a page, by virtue of being the only thing on the page so far, is often a LCP candidate\n            // and gets reported by PerformanceObserver, but isn't necessarily the LCP element.\n            const lcpElement = entries[entries.length - 1];\n            // Cast to `any` due to missing `element` on the `LargestContentfulPaint` type of entry.\n            // See https://developer.mozilla.org/en-US/docs/Web/API/LargestContentfulPaint\n            const imgSrc = lcpElement.element?.src ?? '';\n            // Exclude `data:` and `blob:` URLs, since they are not supported by the directive.\n            if (imgSrc.startsWith('data:') || imgSrc.startsWith('blob:'))\n                return;\n            const img = this.images.get(imgSrc);\n            if (!img)\n                return;\n            if (!img.priority && !img.alreadyWarnedPriority) {\n                img.alreadyWarnedPriority = true;\n                logMissingPriorityWarning(imgSrc);\n            }\n            if (img.modified && !img.alreadyWarnedModified) {\n                img.alreadyWarnedModified = true;\n                logModifiedWarning(imgSrc);\n            }\n        });\n        observer.observe({ type: 'largest-contentful-paint', buffered: true });\n        return observer;\n    }\n    registerImage(rewrittenSrc, originalNgSrc, isPriority) {\n        if (!this.observer)\n            return;\n        const newObservedImageState = {\n            priority: isPriority,\n            modified: false,\n            alreadyWarnedModified: false,\n            alreadyWarnedPriority: false\n        };\n        this.images.set(getUrl(rewrittenSrc, this.window).href, newObservedImageState);\n    }\n    unregisterImage(rewrittenSrc) {\n        if (!this.observer)\n            return;\n        this.images.delete(getUrl(rewrittenSrc, this.window).href);\n    }\n    updateImage(originalSrc, newSrc) {\n        const originalUrl = getUrl(originalSrc, this.window).href;\n        const img = this.images.get(originalUrl);\n        if (img) {\n            img.modified = true;\n            this.images.set(getUrl(newSrc, this.window).href, img);\n            this.images.delete(originalUrl);\n        }\n    }\n    ngOnDestroy() {\n        if (!this.observer)\n            return;\n        this.observer.disconnect();\n        this.images.clear();\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LCPImageObserver, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LCPImageObserver, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: LCPImageObserver, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return []; } });\nfunction logMissingPriorityWarning(ngSrc) {\n    const directiveDetails = imgDirectiveDetails(ngSrc);\n    console.warn(ɵformatRuntimeError(2955 /* RuntimeErrorCode.LCP_IMG_MISSING_PRIORITY */, `${directiveDetails} this image is the Largest Contentful Paint (LCP) ` +\n        `element but was not marked \"priority\". This image should be marked ` +\n        `\"priority\" in order to prioritize its loading. ` +\n        `To fix this, add the \"priority\" attribute.`));\n}\nfunction logModifiedWarning(ngSrc) {\n    const directiveDetails = imgDirectiveDetails(ngSrc);\n    console.warn(ɵformatRuntimeError(2964 /* RuntimeErrorCode.LCP_IMG_NGSRC_MODIFIED */, `${directiveDetails} this image is the Largest Contentful Paint (LCP) ` +\n        `element and has had its \"ngSrc\" attribute modified. This can cause ` +\n        `slower loading performance. It is recommended not to modify the \"ngSrc\" ` +\n        `property on any image which could be the LCP element.`));\n}\n\n// Set of origins that are always excluded from the preconnect checks.\nconst INTERNAL_PRECONNECT_CHECK_BLOCKLIST = new Set(['localhost', '127.0.0.1', '0.0.0.0']);\n/**\n * Injection token to configure which origins should be excluded\n * from the preconnect checks. It can either be a single string or an array of strings\n * to represent a group of origins, for example:\n *\n * ```typescript\n *  {provide: PRECONNECT_CHECK_BLOCKLIST, useValue: 'https://your-domain.com'}\n * ```\n *\n * or:\n *\n * ```typescript\n *  {provide: PRECONNECT_CHECK_BLOCKLIST,\n *   useValue: ['https://your-domain-1.com', 'https://your-domain-2.com']}\n * ```\n *\n * @publicApi\n */\nconst PRECONNECT_CHECK_BLOCKLIST = new InjectionToken('PRECONNECT_CHECK_BLOCKLIST');\n/**\n * Contains the logic to detect whether an image, marked with the \"priority\" attribute\n * has a corresponding `<link rel=\"preconnect\">` tag in the `document.head`.\n *\n * Note: this is a dev-mode only class, which should not appear in prod bundles,\n * thus there is no `ngDevMode` use in the code.\n */\nclass PreconnectLinkChecker {\n    constructor() {\n        this.document = inject(DOCUMENT);\n        /**\n         * Set of <link rel=\"preconnect\"> tags found on this page.\n         * The `null` value indicates that there was no DOM query operation performed.\n         */\n        this.preconnectLinks = null;\n        /*\n         * Keep track of all already seen origin URLs to avoid repeating the same check.\n         */\n        this.alreadySeen = new Set();\n        this.window = null;\n        this.blocklist = new Set(INTERNAL_PRECONNECT_CHECK_BLOCKLIST);\n        assertDevMode('preconnect link checker');\n        const win = this.document.defaultView;\n        if (typeof win !== 'undefined') {\n            this.window = win;\n        }\n        const blocklist = inject(PRECONNECT_CHECK_BLOCKLIST, { optional: true });\n        if (blocklist) {\n            this.populateBlocklist(blocklist);\n        }\n    }\n    populateBlocklist(origins) {\n        if (Array.isArray(origins)) {\n            deepForEach(origins, origin => {\n                this.blocklist.add(extractHostname(origin));\n            });\n        }\n        else {\n            this.blocklist.add(extractHostname(origins));\n        }\n    }\n    /**\n     * Checks that a preconnect resource hint exists in the head for the\n     * given src.\n     *\n     * @param rewrittenSrc src formatted with loader\n     * @param originalNgSrc ngSrc value\n     */\n    assertPreconnect(rewrittenSrc, originalNgSrc) {\n        if (!this.window)\n            return;\n        const imgUrl = getUrl(rewrittenSrc, this.window);\n        if (this.blocklist.has(imgUrl.hostname) || this.alreadySeen.has(imgUrl.origin))\n            return;\n        // Register this origin as seen, so we don't check it again later.\n        this.alreadySeen.add(imgUrl.origin);\n        if (!this.preconnectLinks) {\n            // Note: we query for preconnect links only *once* and cache the results\n            // for the entire lifespan of an application, since it's unlikely that the\n            // list would change frequently. This allows to make sure there are no\n            // performance implications of making extra DOM lookups for each image.\n            this.preconnectLinks = this.queryPreconnectLinks();\n        }\n        if (!this.preconnectLinks.has(imgUrl.origin)) {\n            console.warn(ɵformatRuntimeError(2956 /* RuntimeErrorCode.PRIORITY_IMG_MISSING_PRECONNECT_TAG */, `${imgDirectiveDetails(originalNgSrc)} there is no preconnect tag present for this ` +\n                `image. Preconnecting to the origin(s) that serve priority images ensures that these ` +\n                `images are delivered as soon as possible. To fix this, please add the following ` +\n                `element into the <head> of the document:\\n` +\n                `  <link rel=\"preconnect\" href=\"${imgUrl.origin}\">`));\n        }\n    }\n    queryPreconnectLinks() {\n        const preconnectUrls = new Set();\n        const selector = 'link[rel=preconnect]';\n        const links = Array.from(this.document.querySelectorAll(selector));\n        for (let link of links) {\n            const url = getUrl(link.href, this.window);\n            preconnectUrls.add(url.origin);\n        }\n        return preconnectUrls;\n    }\n    ngOnDestroy() {\n        this.preconnectLinks?.clear();\n        this.alreadySeen.clear();\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreconnectLinkChecker, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreconnectLinkChecker, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreconnectLinkChecker, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return []; } });\n/**\n * Invokes a callback for each element in the array. Also invokes a callback\n * recursively for each nested array.\n */\nfunction deepForEach(input, fn) {\n    for (let value of input) {\n        Array.isArray(value) ? deepForEach(value, fn) : fn(value);\n    }\n}\n\n/**\n * In SSR scenarios, a preload `<link>` element is generated for priority images.\n * Having a large number of preload tags may negatively affect the performance,\n * so we warn developers (by throwing an error) if the number of preloaded images\n * is above a certain threshold. This const specifies this threshold.\n */\nconst DEFAULT_PRELOADED_IMAGES_LIMIT = 5;\n/**\n * Helps to keep track of priority images that already have a corresponding\n * preload tag (to avoid generating multiple preload tags with the same URL).\n *\n * This Set tracks the original src passed into the `ngSrc` input not the src after it has been\n * run through the specified `IMAGE_LOADER`.\n */\nconst PRELOADED_IMAGES = new InjectionToken('NG_OPTIMIZED_PRELOADED_IMAGES', { providedIn: 'root', factory: () => new Set() });\n\n/**\n * @description Contains the logic needed to track and add preload link tags to the `<head>` tag. It\n * will also track what images have already had preload link tags added so as to not duplicate link\n * tags.\n *\n * In dev mode this service will validate that the number of preloaded images does not exceed the\n * configured default preloaded images limit: {@link DEFAULT_PRELOADED_IMAGES_LIMIT}.\n */\nclass PreloadLinkCreator {\n    constructor() {\n        this.preloadedImages = inject(PRELOADED_IMAGES);\n        this.document = inject(DOCUMENT);\n    }\n    /**\n     * @description Add a preload `<link>` to the `<head>` of the `index.html` that is served from the\n     * server while using Angular Universal and SSR to kick off image loads for high priority images.\n     *\n     * The `sizes` (passed in from the user) and `srcset` (parsed and formatted from `ngSrcset`)\n     * properties used to set the corresponding attributes, `imagesizes` and `imagesrcset`\n     * respectively, on the preload `<link>` tag so that the correctly sized image is preloaded from\n     * the CDN.\n     *\n     * {@link https://web.dev/preload-responsive-images/#imagesrcset-and-imagesizes}\n     *\n     * @param renderer The `Renderer2` passed in from the directive\n     * @param src The original src of the image that is set on the `ngSrc` input.\n     * @param srcset The parsed and formatted srcset created from the `ngSrcset` input\n     * @param sizes The value of the `sizes` attribute passed in to the `<img>` tag\n     */\n    createPreloadLinkTag(renderer, src, srcset, sizes) {\n        if (ngDevMode) {\n            if (this.preloadedImages.size >= DEFAULT_PRELOADED_IMAGES_LIMIT) {\n                throw new ɵRuntimeError(2961 /* RuntimeErrorCode.TOO_MANY_PRELOADED_IMAGES */, ngDevMode &&\n                    `The \\`NgOptimizedImage\\` directive has detected that more than ` +\n                        `${DEFAULT_PRELOADED_IMAGES_LIMIT} images were marked as priority. ` +\n                        `This might negatively affect an overall performance of the page. ` +\n                        `To fix this, remove the \"priority\" attribute from images with less priority.`);\n            }\n        }\n        if (this.preloadedImages.has(src)) {\n            return;\n        }\n        this.preloadedImages.add(src);\n        const preload = renderer.createElement('link');\n        renderer.setAttribute(preload, 'as', 'image');\n        renderer.setAttribute(preload, 'href', src);\n        renderer.setAttribute(preload, 'rel', 'preload');\n        renderer.setAttribute(preload, 'fetchpriority', 'high');\n        if (sizes) {\n            renderer.setAttribute(preload, 'imageSizes', sizes);\n        }\n        if (srcset) {\n            renderer.setAttribute(preload, 'imageSrcset', srcset);\n        }\n        renderer.appendChild(this.document.head, preload);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreloadLinkCreator, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreloadLinkCreator, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreloadLinkCreator, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n\n/**\n * When a Base64-encoded image is passed as an input to the `NgOptimizedImage` directive,\n * an error is thrown. The image content (as a string) might be very long, thus making\n * it hard to read an error message if the entire string is included. This const defines\n * the number of characters that should be included into the error message. The rest\n * of the content is truncated.\n */\nconst BASE64_IMG_MAX_LENGTH_IN_ERROR = 50;\n/**\n * RegExpr to determine whether a src in a srcset is using width descriptors.\n * Should match something like: \"100w, 200w\".\n */\nconst VALID_WIDTH_DESCRIPTOR_SRCSET = /^((\\s*\\d+w\\s*(,|$)){1,})$/;\n/**\n * RegExpr to determine whether a src in a srcset is using density descriptors.\n * Should match something like: \"1x, 2x, 50x\". Also supports decimals like \"1.5x, 1.50x\".\n */\nconst VALID_DENSITY_DESCRIPTOR_SRCSET = /^((\\s*\\d+(\\.\\d+)?x\\s*(,|$)){1,})$/;\n/**\n * Srcset values with a density descriptor higher than this value will actively\n * throw an error. Such densities are not permitted as they cause image sizes\n * to be unreasonably large and slow down LCP.\n */\nconst ABSOLUTE_SRCSET_DENSITY_CAP = 3;\n/**\n * Used only in error message text to communicate best practices, as we will\n * only throw based on the slightly more conservative ABSOLUTE_SRCSET_DENSITY_CAP.\n */\nconst RECOMMENDED_SRCSET_DENSITY_CAP = 2;\n/**\n * Used in generating automatic density-based srcsets\n */\nconst DENSITY_SRCSET_MULTIPLIERS = [1, 2];\n/**\n * Used to determine which breakpoints to use on full-width images\n */\nconst VIEWPORT_BREAKPOINT_CUTOFF = 640;\n/**\n * Used to determine whether two aspect ratios are similar in value.\n */\nconst ASPECT_RATIO_TOLERANCE = .1;\n/**\n * Used to determine whether the image has been requested at an overly\n * large size compared to the actual rendered image size (after taking\n * into account a typical device pixel ratio). In pixels.\n */\nconst OVERSIZED_IMAGE_TOLERANCE = 1000;\n/**\n * Used to limit automatic srcset generation of very large sources for\n * fixed-size images. In pixels.\n */\nconst FIXED_SRCSET_WIDTH_LIMIT = 1920;\nconst FIXED_SRCSET_HEIGHT_LIMIT = 1080;\n/** Info about built-in loaders we can test for. */\nconst BUILT_IN_LOADERS = [imgixLoaderInfo, imageKitLoaderInfo, cloudinaryLoaderInfo];\nconst defaultConfig = {\n    breakpoints: [16, 32, 48, 64, 96, 128, 256, 384, 640, 750, 828, 1080, 1200, 1920, 2048, 3840],\n};\n/**\n * Injection token that configures the image optimized image functionality.\n *\n * @see {@link NgOptimizedImage}\n * @publicApi\n */\nconst IMAGE_CONFIG = new InjectionToken('ImageConfig', { providedIn: 'root', factory: () => defaultConfig });\n/**\n * Directive that improves image loading performance by enforcing best practices.\n *\n * `NgOptimizedImage` ensures that the loading of the Largest Contentful Paint (LCP) image is\n * prioritized by:\n * - Automatically setting the `fetchpriority` attribute on the `<img>` tag\n * - Lazy loading non-priority images by default\n * - Asserting that there is a corresponding preconnect link tag in the document head\n *\n * In addition, the directive:\n * - Generates appropriate asset URLs if a corresponding `ImageLoader` function is provided\n * - Automatically generates a srcset\n * - Requires that `width` and `height` are set\n * - Warns if `width` or `height` have been set incorrectly\n * - Warns if the image will be visually distorted when rendered\n *\n * @usageNotes\n * The `NgOptimizedImage` directive is marked as [standalone](guide/standalone-components) and can\n * be imported directly.\n *\n * Follow the steps below to enable and use the directive:\n * 1. Import it into the necessary NgModule or a standalone Component.\n * 2. Optionally provide an `ImageLoader` if you use an image hosting service.\n * 3. Update the necessary `<img>` tags in templates and replace `src` attributes with `ngSrc`.\n * Using a `ngSrc` allows the directive to control when the `src` gets set, which triggers an image\n * download.\n *\n * Step 1: import the `NgOptimizedImage` directive.\n *\n * ```typescript\n * import { NgOptimizedImage } from '@angular/common';\n *\n * // Include it into the necessary NgModule\n * @NgModule({\n *   imports: [NgOptimizedImage],\n * })\n * class AppModule {}\n *\n * // ... or a standalone Component\n * @Component({\n *   standalone: true\n *   imports: [NgOptimizedImage],\n * })\n * class MyStandaloneComponent {}\n * ```\n *\n * Step 2: configure a loader.\n *\n * To use the **default loader**: no additional code changes are necessary. The URL returned by the\n * generic loader will always match the value of \"src\". In other words, this loader applies no\n * transformations to the resource URL and the value of the `ngSrc` attribute will be used as is.\n *\n * To use an existing loader for a **third-party image service**: add the provider factory for your\n * chosen service to the `providers` array. In the example below, the Imgix loader is used:\n *\n * ```typescript\n * import {provideImgixLoader} from '@angular/common';\n *\n * // Call the function and add the result to the `providers` array:\n * providers: [\n *   provideImgixLoader(\"https://my.base.url/\"),\n * ],\n * ```\n *\n * The `NgOptimizedImage` directive provides the following functions:\n * - `provideCloudflareLoader`\n * - `provideCloudinaryLoader`\n * - `provideImageKitLoader`\n * - `provideImgixLoader`\n *\n * If you use a different image provider, you can create a custom loader function as described\n * below.\n *\n * To use a **custom loader**: provide your loader function as a value for the `IMAGE_LOADER` DI\n * token.\n *\n * ```typescript\n * import {IMAGE_LOADER, ImageLoaderConfig} from '@angular/common';\n *\n * // Configure the loader using the `IMAGE_LOADER` token.\n * providers: [\n *   {\n *      provide: IMAGE_LOADER,\n *      useValue: (config: ImageLoaderConfig) => {\n *        return `https://example.com/${config.src}-${config.width}.jpg}`;\n *      }\n *   },\n * ],\n * ```\n *\n * Step 3: update `<img>` tags in templates to use `ngSrc` instead of `src`.\n *\n * ```\n * <img ngSrc=\"logo.png\" width=\"200\" height=\"100\">\n * ```\n *\n * @publicApi\n */\nclass NgOptimizedImage {\n    constructor() {\n        this.imageLoader = inject(IMAGE_LOADER);\n        this.config = processConfig(inject(IMAGE_CONFIG));\n        this.renderer = inject(Renderer2);\n        this.imgElement = inject(ElementRef).nativeElement;\n        this.injector = inject(Injector);\n        this.isServer = isPlatformServer(inject(PLATFORM_ID));\n        this.preloadLinkCreator = inject(PreloadLinkCreator);\n        // a LCP image observer - should be injected only in the dev mode\n        this.lcpObserver = ngDevMode ? this.injector.get(LCPImageObserver) : null;\n        /**\n         * Calculate the rewritten `src` once and store it.\n         * This is needed to avoid repetitive calculations and make sure the directive cleanup in the\n         * `ngOnDestroy` does not rely on the `IMAGE_LOADER` logic (which in turn can rely on some other\n         * instance that might be already destroyed).\n         */\n        this._renderedSrc = null;\n        /**\n         * Indicates whether this image should have a high priority.\n         */\n        this.priority = false;\n        /**\n         * Disables automatic srcset generation for this image.\n         */\n        this.disableOptimizedSrcset = false;\n        /**\n         * Sets the image to \"fill mode\", which eliminates the height/width requirement and adds\n         * styles such that the image fills its containing element.\n         */\n        this.fill = false;\n    }\n    /** @nodoc */\n    ngOnInit() {\n        if (ngDevMode) {\n            const ngZone = this.injector.get(NgZone);\n            assertNonEmptyInput(this, 'ngSrc', this.ngSrc);\n            assertValidNgSrcset(this, this.ngSrcset);\n            assertNoConflictingSrc(this);\n            if (this.ngSrcset) {\n                assertNoConflictingSrcset(this);\n            }\n            assertNotBase64Image(this);\n            assertNotBlobUrl(this);\n            if (this.fill) {\n                assertEmptyWidthAndHeight(this);\n                // This leaves the Angular zone to avoid triggering unnecessary change detection cycles when\n                // `load` tasks are invoked on images.\n                ngZone.runOutsideAngular(() => assertNonZeroRenderedHeight(this, this.imgElement, this.renderer));\n            }\n            else {\n                assertNonEmptyWidthAndHeight(this);\n                if (this.height !== undefined) {\n                    assertGreaterThanZero(this, this.height, 'height');\n                }\n                if (this.width !== undefined) {\n                    assertGreaterThanZero(this, this.width, 'width');\n                }\n                // Only check for distorted images when not in fill mode, where\n                // images may be intentionally stretched, cropped or letterboxed.\n                ngZone.runOutsideAngular(() => assertNoImageDistortion(this, this.imgElement, this.renderer));\n            }\n            assertValidLoadingInput(this);\n            if (!this.ngSrcset) {\n                assertNoComplexSizes(this);\n            }\n            assertNotMissingBuiltInLoader(this.ngSrc, this.imageLoader);\n            assertNoNgSrcsetWithoutLoader(this, this.imageLoader);\n            assertNoLoaderParamsWithoutLoader(this, this.imageLoader);\n            if (this.lcpObserver !== null) {\n                const ngZone = this.injector.get(NgZone);\n                ngZone.runOutsideAngular(() => {\n                    this.lcpObserver.registerImage(this.getRewrittenSrc(), this.ngSrc, this.priority);\n                });\n            }\n            if (this.priority) {\n                const checker = this.injector.get(PreconnectLinkChecker);\n                checker.assertPreconnect(this.getRewrittenSrc(), this.ngSrc);\n            }\n        }\n        this.setHostAttributes();\n    }\n    setHostAttributes() {\n        // Must set width/height explicitly in case they are bound (in which case they will\n        // only be reflected and not found by the browser)\n        if (this.fill) {\n            if (!this.sizes) {\n                this.sizes = '100vw';\n            }\n        }\n        else {\n            this.setHostAttribute('width', this.width.toString());\n            this.setHostAttribute('height', this.height.toString());\n        }\n        this.setHostAttribute('loading', this.getLoadingBehavior());\n        this.setHostAttribute('fetchpriority', this.getFetchPriority());\n        // The `data-ng-img` attribute flags an image as using the directive, to allow\n        // for analysis of the directive's performance.\n        this.setHostAttribute('ng-img', 'true');\n        // The `src` and `srcset` attributes should be set last since other attributes\n        // could affect the image's loading behavior.\n        const rewrittenSrcset = this.updateSrcAndSrcset();\n        if (this.sizes) {\n            this.setHostAttribute('sizes', this.sizes);\n        }\n        if (this.isServer && this.priority) {\n            this.preloadLinkCreator.createPreloadLinkTag(this.renderer, this.getRewrittenSrc(), rewrittenSrcset, this.sizes);\n        }\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (ngDevMode) {\n            assertNoPostInitInputChange(this, changes, [\n                'ngSrcset',\n                'width',\n                'height',\n                'priority',\n                'fill',\n                'loading',\n                'sizes',\n                'loaderParams',\n                'disableOptimizedSrcset',\n            ]);\n        }\n        if (changes['ngSrc'] && !changes['ngSrc'].isFirstChange()) {\n            const oldSrc = this._renderedSrc;\n            this.updateSrcAndSrcset(true);\n            const newSrc = this._renderedSrc;\n            if (this.lcpObserver !== null && oldSrc && newSrc && oldSrc !== newSrc) {\n                const ngZone = this.injector.get(NgZone);\n                ngZone.runOutsideAngular(() => {\n                    this.lcpObserver?.updateImage(oldSrc, newSrc);\n                });\n            }\n        }\n    }\n    callImageLoader(configWithoutCustomParams) {\n        let augmentedConfig = configWithoutCustomParams;\n        if (this.loaderParams) {\n            augmentedConfig.loaderParams = this.loaderParams;\n        }\n        return this.imageLoader(augmentedConfig);\n    }\n    getLoadingBehavior() {\n        if (!this.priority && this.loading !== undefined) {\n            return this.loading;\n        }\n        return this.priority ? 'eager' : 'lazy';\n    }\n    getFetchPriority() {\n        return this.priority ? 'high' : 'auto';\n    }\n    getRewrittenSrc() {\n        // ImageLoaderConfig supports setting a width property. However, we're not setting width here\n        // because if the developer uses rendered width instead of intrinsic width in the HTML width\n        // attribute, the image requested may be too small for 2x+ screens.\n        if (!this._renderedSrc) {\n            const imgConfig = { src: this.ngSrc };\n            // Cache calculated image src to reuse it later in the code.\n            this._renderedSrc = this.callImageLoader(imgConfig);\n        }\n        return this._renderedSrc;\n    }\n    getRewrittenSrcset() {\n        const widthSrcSet = VALID_WIDTH_DESCRIPTOR_SRCSET.test(this.ngSrcset);\n        const finalSrcs = this.ngSrcset.split(',').filter(src => src !== '').map(srcStr => {\n            srcStr = srcStr.trim();\n            const width = widthSrcSet ? parseFloat(srcStr) : parseFloat(srcStr) * this.width;\n            return `${this.callImageLoader({ src: this.ngSrc, width })} ${srcStr}`;\n        });\n        return finalSrcs.join(', ');\n    }\n    getAutomaticSrcset() {\n        if (this.sizes) {\n            return this.getResponsiveSrcset();\n        }\n        else {\n            return this.getFixedSrcset();\n        }\n    }\n    getResponsiveSrcset() {\n        const { breakpoints } = this.config;\n        let filteredBreakpoints = breakpoints;\n        if (this.sizes?.trim() === '100vw') {\n            // Since this is a full-screen-width image, our srcset only needs to include\n            // breakpoints with full viewport widths.\n            filteredBreakpoints = breakpoints.filter(bp => bp >= VIEWPORT_BREAKPOINT_CUTOFF);\n        }\n        const finalSrcs = filteredBreakpoints.map(bp => `${this.callImageLoader({ src: this.ngSrc, width: bp })} ${bp}w`);\n        return finalSrcs.join(', ');\n    }\n    updateSrcAndSrcset(forceSrcRecalc = false) {\n        if (forceSrcRecalc) {\n            // Reset cached value, so that the followup `getRewrittenSrc()` call\n            // will recalculate it and update the cache.\n            this._renderedSrc = null;\n        }\n        const rewrittenSrc = this.getRewrittenSrc();\n        this.setHostAttribute('src', rewrittenSrc);\n        let rewrittenSrcset = undefined;\n        if (this.ngSrcset) {\n            rewrittenSrcset = this.getRewrittenSrcset();\n        }\n        else if (this.shouldGenerateAutomaticSrcset()) {\n            rewrittenSrcset = this.getAutomaticSrcset();\n        }\n        if (rewrittenSrcset) {\n            this.setHostAttribute('srcset', rewrittenSrcset);\n        }\n        return rewrittenSrcset;\n    }\n    getFixedSrcset() {\n        const finalSrcs = DENSITY_SRCSET_MULTIPLIERS.map(multiplier => `${this.callImageLoader({\n            src: this.ngSrc,\n            width: this.width * multiplier\n        })} ${multiplier}x`);\n        return finalSrcs.join(', ');\n    }\n    shouldGenerateAutomaticSrcset() {\n        let oversizedImage = false;\n        if (!this.sizes) {\n            oversizedImage =\n                this.width > FIXED_SRCSET_WIDTH_LIMIT || this.height > FIXED_SRCSET_HEIGHT_LIMIT;\n        }\n        return !this.disableOptimizedSrcset && !this.srcset && this.imageLoader !== noopImageLoader &&\n            !oversizedImage;\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (ngDevMode) {\n            if (!this.priority && this._renderedSrc !== null && this.lcpObserver !== null) {\n                this.lcpObserver.unregisterImage(this._renderedSrc);\n            }\n        }\n    }\n    setHostAttribute(name, value) {\n        this.renderer.setAttribute(this.imgElement, name, value);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgOptimizedImage, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"16.1.0\", version: \"16.2.12\", type: NgOptimizedImage, isStandalone: true, selector: \"img[ngSrc]\", inputs: { ngSrc: [\"ngSrc\", \"ngSrc\", unwrapSafeUrl], ngSrcset: \"ngSrcset\", sizes: \"sizes\", width: [\"width\", \"width\", numberAttribute], height: [\"height\", \"height\", numberAttribute], loading: \"loading\", priority: [\"priority\", \"priority\", booleanAttribute], loaderParams: \"loaderParams\", disableOptimizedSrcset: [\"disableOptimizedSrcset\", \"disableOptimizedSrcset\", booleanAttribute], fill: [\"fill\", \"fill\", booleanAttribute], src: \"src\", srcset: \"srcset\" }, host: { properties: { \"style.position\": \"fill ? \\\"absolute\\\" : null\", \"style.width\": \"fill ? \\\"100%\\\" : null\", \"style.height\": \"fill ? \\\"100%\\\" : null\", \"style.inset\": \"fill ? \\\"0px\\\" : null\" } }, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NgOptimizedImage, decorators: [{\n            type: Directive,\n            args: [{\n                    standalone: true,\n                    selector: 'img[ngSrc]',\n                    host: {\n                        '[style.position]': 'fill ? \"absolute\" : null',\n                        '[style.width]': 'fill ? \"100%\" : null',\n                        '[style.height]': 'fill ? \"100%\" : null',\n                        '[style.inset]': 'fill ? \"0px\" : null'\n                    }\n                }]\n        }], propDecorators: { ngSrc: [{\n                type: Input,\n                args: [{ required: true, transform: unwrapSafeUrl }]\n            }], ngSrcset: [{\n                type: Input\n            }], sizes: [{\n                type: Input\n            }], width: [{\n                type: Input,\n                args: [{ transform: numberAttribute }]\n            }], height: [{\n                type: Input,\n                args: [{ transform: numberAttribute }]\n            }], loading: [{\n                type: Input\n            }], priority: [{\n                type: Input,\n                args: [{ transform: booleanAttribute }]\n            }], loaderParams: [{\n                type: Input\n            }], disableOptimizedSrcset: [{\n                type: Input,\n                args: [{ transform: booleanAttribute }]\n            }], fill: [{\n                type: Input,\n                args: [{ transform: booleanAttribute }]\n            }], src: [{\n                type: Input\n            }], srcset: [{\n                type: Input\n            }] } });\n/***** Helpers *****/\n/**\n * Sorts provided config breakpoints and uses defaults.\n */\nfunction processConfig(config) {\n    let sortedBreakpoints = {};\n    if (config.breakpoints) {\n        sortedBreakpoints.breakpoints = config.breakpoints.sort((a, b) => a - b);\n    }\n    return Object.assign({}, defaultConfig, config, sortedBreakpoints);\n}\n/***** Assert functions *****/\n/**\n * Verifies that there is no `src` set on a host element.\n */\nfunction assertNoConflictingSrc(dir) {\n    if (dir.src) {\n        throw new ɵRuntimeError(2950 /* RuntimeErrorCode.UNEXPECTED_SRC_ATTR */, `${imgDirectiveDetails(dir.ngSrc)} both \\`src\\` and \\`ngSrc\\` have been set. ` +\n            `Supplying both of these attributes breaks lazy loading. ` +\n            `The NgOptimizedImage directive sets \\`src\\` itself based on the value of \\`ngSrc\\`. ` +\n            `To fix this, please remove the \\`src\\` attribute.`);\n    }\n}\n/**\n * Verifies that there is no `srcset` set on a host element.\n */\nfunction assertNoConflictingSrcset(dir) {\n    if (dir.srcset) {\n        throw new ɵRuntimeError(2951 /* RuntimeErrorCode.UNEXPECTED_SRCSET_ATTR */, `${imgDirectiveDetails(dir.ngSrc)} both \\`srcset\\` and \\`ngSrcset\\` have been set. ` +\n            `Supplying both of these attributes breaks lazy loading. ` +\n            `The NgOptimizedImage directive sets \\`srcset\\` itself based on the value of ` +\n            `\\`ngSrcset\\`. To fix this, please remove the \\`srcset\\` attribute.`);\n    }\n}\n/**\n * Verifies that the `ngSrc` is not a Base64-encoded image.\n */\nfunction assertNotBase64Image(dir) {\n    let ngSrc = dir.ngSrc.trim();\n    if (ngSrc.startsWith('data:')) {\n        if (ngSrc.length > BASE64_IMG_MAX_LENGTH_IN_ERROR) {\n            ngSrc = ngSrc.substring(0, BASE64_IMG_MAX_LENGTH_IN_ERROR) + '...';\n        }\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc, false)} \\`ngSrc\\` is a Base64-encoded string ` +\n            `(${ngSrc}). NgOptimizedImage does not support Base64-encoded strings. ` +\n            `To fix this, disable the NgOptimizedImage directive for this element ` +\n            `by removing \\`ngSrc\\` and using a standard \\`src\\` attribute instead.`);\n    }\n}\n/**\n * Verifies that the 'sizes' only includes responsive values.\n */\nfunction assertNoComplexSizes(dir) {\n    let sizes = dir.sizes;\n    if (sizes?.match(/((\\)|,)\\s|^)\\d+px/)) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc, false)} \\`sizes\\` was set to a string including ` +\n            `pixel values. For automatic \\`srcset\\` generation, \\`sizes\\` must only include responsive ` +\n            `values, such as \\`sizes=\"50vw\"\\` or \\`sizes=\"(min-width: 768px) 50vw, 100vw\"\\`. ` +\n            `To fix this, modify the \\`sizes\\` attribute, or provide your own \\`ngSrcset\\` value directly.`);\n    }\n}\n/**\n * Verifies that the `ngSrc` is not a Blob URL.\n */\nfunction assertNotBlobUrl(dir) {\n    const ngSrc = dir.ngSrc.trim();\n    if (ngSrc.startsWith('blob:')) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} \\`ngSrc\\` was set to a blob URL (${ngSrc}). ` +\n            `Blob URLs are not supported by the NgOptimizedImage directive. ` +\n            `To fix this, disable the NgOptimizedImage directive for this element ` +\n            `by removing \\`ngSrc\\` and using a regular \\`src\\` attribute instead.`);\n    }\n}\n/**\n * Verifies that the input is set to a non-empty string.\n */\nfunction assertNonEmptyInput(dir, name, value) {\n    const isString = typeof value === 'string';\n    const isEmptyString = isString && value.trim() === '';\n    if (!isString || isEmptyString) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} \\`${name}\\` has an invalid value ` +\n            `(\\`${value}\\`). To fix this, change the value to a non-empty string.`);\n    }\n}\n/**\n * Verifies that the `ngSrcset` is in a valid format, e.g. \"100w, 200w\" or \"1x, 2x\".\n */\nfunction assertValidNgSrcset(dir, value) {\n    if (value == null)\n        return;\n    assertNonEmptyInput(dir, 'ngSrcset', value);\n    const stringVal = value;\n    const isValidWidthDescriptor = VALID_WIDTH_DESCRIPTOR_SRCSET.test(stringVal);\n    const isValidDensityDescriptor = VALID_DENSITY_DESCRIPTOR_SRCSET.test(stringVal);\n    if (isValidDensityDescriptor) {\n        assertUnderDensityCap(dir, stringVal);\n    }\n    const isValidSrcset = isValidWidthDescriptor || isValidDensityDescriptor;\n    if (!isValidSrcset) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} \\`ngSrcset\\` has an invalid value (\\`${value}\\`). ` +\n            `To fix this, supply \\`ngSrcset\\` using a comma-separated list of one or more width ` +\n            `descriptors (e.g. \"100w, 200w\") or density descriptors (e.g. \"1x, 2x\").`);\n    }\n}\nfunction assertUnderDensityCap(dir, value) {\n    const underDensityCap = value.split(',').every(num => num === '' || parseFloat(num) <= ABSOLUTE_SRCSET_DENSITY_CAP);\n    if (!underDensityCap) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} the \\`ngSrcset\\` contains an unsupported image density:` +\n            `\\`${value}\\`. NgOptimizedImage generally recommends a max image density of ` +\n            `${RECOMMENDED_SRCSET_DENSITY_CAP}x but supports image densities up to ` +\n            `${ABSOLUTE_SRCSET_DENSITY_CAP}x. The human eye cannot distinguish between image densities ` +\n            `greater than ${RECOMMENDED_SRCSET_DENSITY_CAP}x - which makes them unnecessary for ` +\n            `most use cases. Images that will be pinch-zoomed are typically the primary use case for ` +\n            `${ABSOLUTE_SRCSET_DENSITY_CAP}x images. Please remove the high density descriptor and try again.`);\n    }\n}\n/**\n * Creates a `RuntimeError` instance to represent a situation when an input is set after\n * the directive has initialized.\n */\nfunction postInitInputChangeError(dir, inputName) {\n    let reason;\n    if (inputName === 'width' || inputName === 'height') {\n        reason = `Changing \\`${inputName}\\` may result in different attribute value ` +\n            `applied to the underlying image element and cause layout shifts on a page.`;\n    }\n    else {\n        reason = `Changing the \\`${inputName}\\` would have no effect on the underlying ` +\n            `image element, because the resource loading has already occurred.`;\n    }\n    return new ɵRuntimeError(2953 /* RuntimeErrorCode.UNEXPECTED_INPUT_CHANGE */, `${imgDirectiveDetails(dir.ngSrc)} \\`${inputName}\\` was updated after initialization. ` +\n        `The NgOptimizedImage directive will not react to this input change. ${reason} ` +\n        `To fix this, either switch \\`${inputName}\\` to a static value ` +\n        `or wrap the image element in an *ngIf that is gated on the necessary value.`);\n}\n/**\n * Verify that none of the listed inputs has changed.\n */\nfunction assertNoPostInitInputChange(dir, changes, inputs) {\n    inputs.forEach(input => {\n        const isUpdated = changes.hasOwnProperty(input);\n        if (isUpdated && !changes[input].isFirstChange()) {\n            if (input === 'ngSrc') {\n                // When the `ngSrc` input changes, we detect that only in the\n                // `ngOnChanges` hook, thus the `ngSrc` is already set. We use\n                // `ngSrc` in the error message, so we use a previous value, but\n                // not the updated one in it.\n                dir = { ngSrc: changes[input].previousValue };\n            }\n            throw postInitInputChangeError(dir, input);\n        }\n    });\n}\n/**\n * Verifies that a specified input is a number greater than 0.\n */\nfunction assertGreaterThanZero(dir, inputValue, inputName) {\n    const validNumber = typeof inputValue === 'number' && inputValue > 0;\n    const validString = typeof inputValue === 'string' && /^\\d+$/.test(inputValue.trim()) && parseInt(inputValue) > 0;\n    if (!validNumber && !validString) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} \\`${inputName}\\` has an invalid value. ` +\n            `To fix this, provide \\`${inputName}\\` as a number greater than 0.`);\n    }\n}\n/**\n * Verifies that the rendered image is not visually distorted. Effectively this is checking:\n * - Whether the \"width\" and \"height\" attributes reflect the actual dimensions of the image.\n * - Whether image styling is \"correct\" (see below for a longer explanation).\n */\nfunction assertNoImageDistortion(dir, img, renderer) {\n    const removeListenerFn = renderer.listen(img, 'load', () => {\n        removeListenerFn();\n        const computedStyle = window.getComputedStyle(img);\n        let renderedWidth = parseFloat(computedStyle.getPropertyValue('width'));\n        let renderedHeight = parseFloat(computedStyle.getPropertyValue('height'));\n        const boxSizing = computedStyle.getPropertyValue('box-sizing');\n        if (boxSizing === 'border-box') {\n            const paddingTop = computedStyle.getPropertyValue('padding-top');\n            const paddingRight = computedStyle.getPropertyValue('padding-right');\n            const paddingBottom = computedStyle.getPropertyValue('padding-bottom');\n            const paddingLeft = computedStyle.getPropertyValue('padding-left');\n            renderedWidth -= parseFloat(paddingRight) + parseFloat(paddingLeft);\n            renderedHeight -= parseFloat(paddingTop) + parseFloat(paddingBottom);\n        }\n        const renderedAspectRatio = renderedWidth / renderedHeight;\n        const nonZeroRenderedDimensions = renderedWidth !== 0 && renderedHeight !== 0;\n        const intrinsicWidth = img.naturalWidth;\n        const intrinsicHeight = img.naturalHeight;\n        const intrinsicAspectRatio = intrinsicWidth / intrinsicHeight;\n        const suppliedWidth = dir.width;\n        const suppliedHeight = dir.height;\n        const suppliedAspectRatio = suppliedWidth / suppliedHeight;\n        // Tolerance is used to account for the impact of subpixel rendering.\n        // Due to subpixel rendering, the rendered, intrinsic, and supplied\n        // aspect ratios of a correctly configured image may not exactly match.\n        // For example, a `width=4030 height=3020` image might have a rendered\n        // size of \"1062w, 796.48h\". (An aspect ratio of 1.334... vs. 1.333...)\n        const inaccurateDimensions = Math.abs(suppliedAspectRatio - intrinsicAspectRatio) > ASPECT_RATIO_TOLERANCE;\n        const stylingDistortion = nonZeroRenderedDimensions &&\n            Math.abs(intrinsicAspectRatio - renderedAspectRatio) > ASPECT_RATIO_TOLERANCE;\n        if (inaccurateDimensions) {\n            console.warn(ɵformatRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} the aspect ratio of the image does not match ` +\n                `the aspect ratio indicated by the width and height attributes. ` +\n                `\\nIntrinsic image size: ${intrinsicWidth}w x ${intrinsicHeight}h ` +\n                `(aspect-ratio: ${round(intrinsicAspectRatio)}). \\nSupplied width and height attributes: ` +\n                `${suppliedWidth}w x ${suppliedHeight}h (aspect-ratio: ${round(suppliedAspectRatio)}). ` +\n                `\\nTo fix this, update the width and height attributes.`));\n        }\n        else if (stylingDistortion) {\n            console.warn(ɵformatRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} the aspect ratio of the rendered image ` +\n                `does not match the image's intrinsic aspect ratio. ` +\n                `\\nIntrinsic image size: ${intrinsicWidth}w x ${intrinsicHeight}h ` +\n                `(aspect-ratio: ${round(intrinsicAspectRatio)}). \\nRendered image size: ` +\n                `${renderedWidth}w x ${renderedHeight}h (aspect-ratio: ` +\n                `${round(renderedAspectRatio)}). \\nThis issue can occur if \"width\" and \"height\" ` +\n                `attributes are added to an image without updating the corresponding ` +\n                `image styling. To fix this, adjust image styling. In most cases, ` +\n                `adding \"height: auto\" or \"width: auto\" to the image styling will fix ` +\n                `this issue.`));\n        }\n        else if (!dir.ngSrcset && nonZeroRenderedDimensions) {\n            // If `ngSrcset` hasn't been set, sanity check the intrinsic size.\n            const recommendedWidth = RECOMMENDED_SRCSET_DENSITY_CAP * renderedWidth;\n            const recommendedHeight = RECOMMENDED_SRCSET_DENSITY_CAP * renderedHeight;\n            const oversizedWidth = (intrinsicWidth - recommendedWidth) >= OVERSIZED_IMAGE_TOLERANCE;\n            const oversizedHeight = (intrinsicHeight - recommendedHeight) >= OVERSIZED_IMAGE_TOLERANCE;\n            if (oversizedWidth || oversizedHeight) {\n                console.warn(ɵformatRuntimeError(2960 /* RuntimeErrorCode.OVERSIZED_IMAGE */, `${imgDirectiveDetails(dir.ngSrc)} the intrinsic image is significantly ` +\n                    `larger than necessary. ` +\n                    `\\nRendered image size: ${renderedWidth}w x ${renderedHeight}h. ` +\n                    `\\nIntrinsic image size: ${intrinsicWidth}w x ${intrinsicHeight}h. ` +\n                    `\\nRecommended intrinsic image size: ${recommendedWidth}w x ${recommendedHeight}h. ` +\n                    `\\nNote: Recommended intrinsic image size is calculated assuming a maximum DPR of ` +\n                    `${RECOMMENDED_SRCSET_DENSITY_CAP}. To improve loading time, resize the image ` +\n                    `or consider using the \"ngSrcset\" and \"sizes\" attributes.`));\n            }\n        }\n    });\n}\n/**\n * Verifies that a specified input is set.\n */\nfunction assertNonEmptyWidthAndHeight(dir) {\n    let missingAttributes = [];\n    if (dir.width === undefined)\n        missingAttributes.push('width');\n    if (dir.height === undefined)\n        missingAttributes.push('height');\n    if (missingAttributes.length > 0) {\n        throw new ɵRuntimeError(2954 /* RuntimeErrorCode.REQUIRED_INPUT_MISSING */, `${imgDirectiveDetails(dir.ngSrc)} these required attributes ` +\n            `are missing: ${missingAttributes.map(attr => `\"${attr}\"`).join(', ')}. ` +\n            `Including \"width\" and \"height\" attributes will prevent image-related layout shifts. ` +\n            `To fix this, include \"width\" and \"height\" attributes on the image tag or turn on ` +\n            `\"fill\" mode with the \\`fill\\` attribute.`);\n    }\n}\n/**\n * Verifies that width and height are not set. Used in fill mode, where those attributes don't make\n * sense.\n */\nfunction assertEmptyWidthAndHeight(dir) {\n    if (dir.width || dir.height) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} the attributes \\`height\\` and/or \\`width\\` are present ` +\n            `along with the \\`fill\\` attribute. Because \\`fill\\` mode causes an image to fill its containing ` +\n            `element, the size attributes have no effect and should be removed.`);\n    }\n}\n/**\n * Verifies that the rendered image has a nonzero height. If the image is in fill mode, provides\n * guidance that this can be caused by the containing element's CSS position property.\n */\nfunction assertNonZeroRenderedHeight(dir, img, renderer) {\n    const removeListenerFn = renderer.listen(img, 'load', () => {\n        removeListenerFn();\n        const renderedHeight = img.clientHeight;\n        if (dir.fill && renderedHeight === 0) {\n            console.warn(ɵformatRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} the height of the fill-mode image is zero. ` +\n                `This is likely because the containing element does not have the CSS 'position' ` +\n                `property set to one of the following: \"relative\", \"fixed\", or \"absolute\". ` +\n                `To fix this problem, make sure the container element has the CSS 'position' ` +\n                `property defined and the height of the element is not zero.`));\n        }\n    });\n}\n/**\n * Verifies that the `loading` attribute is set to a valid input &\n * is not used on priority images.\n */\nfunction assertValidLoadingInput(dir) {\n    if (dir.loading && dir.priority) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} the \\`loading\\` attribute ` +\n            `was used on an image that was marked \"priority\". ` +\n            `Setting \\`loading\\` on priority images is not allowed ` +\n            `because these images will always be eagerly loaded. ` +\n            `To fix this, remove the “loading” attribute from the priority image.`);\n    }\n    const validInputs = ['auto', 'eager', 'lazy'];\n    if (typeof dir.loading === 'string' && !validInputs.includes(dir.loading)) {\n        throw new ɵRuntimeError(2952 /* RuntimeErrorCode.INVALID_INPUT */, `${imgDirectiveDetails(dir.ngSrc)} the \\`loading\\` attribute ` +\n            `has an invalid value (\\`${dir.loading}\\`). ` +\n            `To fix this, provide a valid value (\"lazy\", \"eager\", or \"auto\").`);\n    }\n}\n/**\n * Warns if NOT using a loader (falling back to the generic loader) and\n * the image appears to be hosted on one of the image CDNs for which\n * we do have a built-in image loader. Suggests switching to the\n * built-in loader.\n *\n * @param ngSrc Value of the ngSrc attribute\n * @param imageLoader ImageLoader provided\n */\nfunction assertNotMissingBuiltInLoader(ngSrc, imageLoader) {\n    if (imageLoader === noopImageLoader) {\n        let builtInLoaderName = '';\n        for (const loader of BUILT_IN_LOADERS) {\n            if (loader.testUrl(ngSrc)) {\n                builtInLoaderName = loader.name;\n                break;\n            }\n        }\n        if (builtInLoaderName) {\n            console.warn(ɵformatRuntimeError(2962 /* RuntimeErrorCode.MISSING_BUILTIN_LOADER */, `NgOptimizedImage: It looks like your images may be hosted on the ` +\n                `${builtInLoaderName} CDN, but your app is not using Angular's ` +\n                `built-in loader for that CDN. We recommend switching to use ` +\n                `the built-in by calling \\`provide${builtInLoaderName}Loader()\\` ` +\n                `in your \\`providers\\` and passing it your instance's base URL. ` +\n                `If you don't want to use the built-in loader, define a custom ` +\n                `loader function using IMAGE_LOADER to silence this warning.`));\n        }\n    }\n}\n/**\n * Warns if ngSrcset is present and no loader is configured (i.e. the default one is being used).\n */\nfunction assertNoNgSrcsetWithoutLoader(dir, imageLoader) {\n    if (dir.ngSrcset && imageLoader === noopImageLoader) {\n        console.warn(ɵformatRuntimeError(2963 /* RuntimeErrorCode.MISSING_NECESSARY_LOADER */, `${imgDirectiveDetails(dir.ngSrc)} the \\`ngSrcset\\` attribute is present but ` +\n            `no image loader is configured (i.e. the default one is being used), ` +\n            `which would result in the same image being used for all configured sizes. ` +\n            `To fix this, provide a loader or remove the \\`ngSrcset\\` attribute from the image.`));\n    }\n}\n/**\n * Warns if loaderParams is present and no loader is configured (i.e. the default one is being\n * used).\n */\nfunction assertNoLoaderParamsWithoutLoader(dir, imageLoader) {\n    if (dir.loaderParams && imageLoader === noopImageLoader) {\n        console.warn(ɵformatRuntimeError(2963 /* RuntimeErrorCode.MISSING_NECESSARY_LOADER */, `${imgDirectiveDetails(dir.ngSrc)} the \\`loaderParams\\` attribute is present but ` +\n            `no image loader is configured (i.e. the default one is being used), ` +\n            `which means that the loaderParams data will not be consumed and will not affect the URL. ` +\n            `To fix this, provide a custom loader or remove the \\`loaderParams\\` attribute from the image.`));\n    }\n}\nfunction round(input) {\n    return Number.isInteger(input) ? input : input.toFixed(2);\n}\n// Transform function to handle SafeValue input for ngSrc. This doesn't do any sanitization,\n// as that is not needed for img.src and img.srcset. This transform is purely for compatibility.\nfunction unwrapSafeUrl(value) {\n    if (typeof value === 'string') {\n        return value;\n    }\n    return ɵunwrapSafeValue(value);\n}\n\n// These exports represent the set of symbols exposed as a public API.\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of the common package.\n */\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\n// This file only reexports content of the `src` folder. Keep it that way.\n\n// This file is not used to build this module. It is only used during editing\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { APP_BASE_HREF, AsyncPipe, BrowserPlatformLocation, CommonModule, CurrencyPipe, DATE_PIPE_DEFAULT_OPTIONS, DATE_PIPE_DEFAULT_TIMEZONE, DOCUMENT, DatePipe, DecimalPipe, FormStyle, FormatWidth, HashLocationStrategy, I18nPluralPipe, I18nSelectPipe, IMAGE_CONFIG, IMAGE_LOADER, JsonPipe, KeyValuePipe, LOCATION_INITIALIZED, Location, LocationStrategy, LowerCasePipe, NgClass, NgComponentOutlet, NgForOf as NgFor, NgForOf, NgForOfContext, NgIf, NgIfContext, NgLocaleLocalization, NgLocalization, NgOptimizedImage, NgPlural, NgPluralCase, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet, NumberFormatStyle, NumberSymbol, PRECONNECT_CHECK_BLOCKLIST, PathLocationStrategy, PercentPipe, PlatformLocation, Plural, SlicePipe, TitleCasePipe, TranslationWidth, UpperCasePipe, VERSION, ViewportScroller, WeekDay, XhrFactory, formatCurrency, formatDate, formatNumber, formatPercent, getCurrencySymbol, getLocaleCurrencyCode, getLocaleCurrencyName, getLocaleCurrencySymbol, getLocaleDateFormat, getLocaleDateTimeFormat, getLocaleDayNames, getLocaleDayPeriods, getLocaleDirection, getLocaleEraNames, getLocaleExtraDayPeriodRules, getLocaleExtraDayPeriods, getLocaleFirstDayOfWeek, getLocaleId, getLocaleMonthNames, getLocaleNumberFormat, getLocaleNumberSymbol, getLocalePluralCase, getLocaleTimeFormat, getLocaleWeekEndRange, getNumberOfCurrencyDigits, isPlatformBrowser, isPlatformServer, isPlatformWorkerApp, isPlatformWorkerUi, provideCloudflareLoader, provideCloudinaryLoader, provideImageKitLoader, provideImgixLoader, registerLocaleData, DomAdapter as ɵDomAdapter, NullViewportScroller as ɵNullViewportScroller, PLATFORM_BROWSER_ID as ɵPLATFORM_BROWSER_ID, PLATFORM_SERVER_ID as ɵPLATFORM_SERVER_ID, PLATFORM_WORKER_APP_ID as ɵPLATFORM_WORKER_APP_ID, PLATFORM_WORKER_UI_ID as ɵPLATFORM_WORKER_UI_ID, getDOM as ɵgetDOM, parseCookieValue as ɵparseCookieValue, setRootDomAdapter as ɵsetRootDomAdapter };\n","/**\n * @license Angular v16.2.12\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { Injectable, inject, NgZone, InjectionToken, ɵInitialRenderPendingTasks, Inject, ɵRuntimeError, PLATFORM_ID, makeEnvironmentProviders, NgModule, TransferState, makeStateKey, ɵENABLED_SSR_FEATURES, APP_BOOTSTRAP_LISTENER, ApplicationRef } from '@angular/core';\nimport { of, Observable, from } from 'rxjs';\nimport { concatMap, filter, map, finalize, switchMap, tap, first } from 'rxjs/operators';\nimport * as i1 from '@angular/common';\nimport { DOCUMENT, ɵparseCookieValue } from '@angular/common';\n\n/**\n * Transforms an `HttpRequest` into a stream of `HttpEvent`s, one of which will likely be a\n * `HttpResponse`.\n *\n * `HttpHandler` is injectable. When injected, the handler instance dispatches requests to the\n * first interceptor in the chain, which dispatches to the second, etc, eventually reaching the\n * `HttpBackend`.\n *\n * In an `HttpInterceptor`, the `HttpHandler` parameter is the next interceptor in the chain.\n *\n * @publicApi\n */\nclass HttpHandler {\n}\n/**\n * A final `HttpHandler` which will dispatch the request via browser HTTP APIs to a backend.\n *\n * Interceptors sit between the `HttpClient` interface and the `HttpBackend`.\n *\n * When injected, `HttpBackend` dispatches requests directly to the backend, without going\n * through the interceptor chain.\n *\n * @publicApi\n */\nclass HttpBackend {\n}\n\n/**\n * Represents the header configuration options for an HTTP request.\n * Instances are immutable. Modifying methods return a cloned\n * instance with the change. The original object is never changed.\n *\n * @publicApi\n */\nclass HttpHeaders {\n    /**  Constructs a new HTTP header object with the given values.*/\n    constructor(headers) {\n        /**\n         * Internal map of lowercased header names to the normalized\n         * form of the name (the form seen first).\n         */\n        this.normalizedNames = new Map();\n        /**\n         * Queued updates to be materialized the next initialization.\n         */\n        this.lazyUpdate = null;\n        if (!headers) {\n            this.headers = new Map();\n        }\n        else if (typeof headers === 'string') {\n            this.lazyInit = () => {\n                this.headers = new Map();\n                headers.split('\\n').forEach(line => {\n                    const index = line.indexOf(':');\n                    if (index > 0) {\n                        const name = line.slice(0, index);\n                        const key = name.toLowerCase();\n                        const value = line.slice(index + 1).trim();\n                        this.maybeSetNormalizedName(name, key);\n                        if (this.headers.has(key)) {\n                            this.headers.get(key).push(value);\n                        }\n                        else {\n                            this.headers.set(key, [value]);\n                        }\n                    }\n                });\n            };\n        }\n        else if (typeof Headers !== 'undefined' && headers instanceof Headers) {\n            this.headers = new Map();\n            headers.forEach((values, name) => {\n                this.setHeaderEntries(name, values);\n            });\n        }\n        else {\n            this.lazyInit = () => {\n                if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                    assertValidHeaders(headers);\n                }\n                this.headers = new Map();\n                Object.entries(headers).forEach(([name, values]) => {\n                    this.setHeaderEntries(name, values);\n                });\n            };\n        }\n    }\n    /**\n     * Checks for existence of a given header.\n     *\n     * @param name The header name to check for existence.\n     *\n     * @returns True if the header exists, false otherwise.\n     */\n    has(name) {\n        this.init();\n        return this.headers.has(name.toLowerCase());\n    }\n    /**\n     * Retrieves the first value of a given header.\n     *\n     * @param name The header name.\n     *\n     * @returns The value string if the header exists, null otherwise\n     */\n    get(name) {\n        this.init();\n        const values = this.headers.get(name.toLowerCase());\n        return values && values.length > 0 ? values[0] : null;\n    }\n    /**\n     * Retrieves the names of the headers.\n     *\n     * @returns A list of header names.\n     */\n    keys() {\n        this.init();\n        return Array.from(this.normalizedNames.values());\n    }\n    /**\n     * Retrieves a list of values for a given header.\n     *\n     * @param name The header name from which to retrieve values.\n     *\n     * @returns A string of values if the header exists, null otherwise.\n     */\n    getAll(name) {\n        this.init();\n        return this.headers.get(name.toLowerCase()) || null;\n    }\n    /**\n     * Appends a new value to the existing set of values for a header\n     * and returns them in a clone of the original instance.\n     *\n     * @param name The header name for which to append the values.\n     * @param value The value to append.\n     *\n     * @returns A clone of the HTTP headers object with the value appended to the given header.\n     */\n    append(name, value) {\n        return this.clone({ name, value, op: 'a' });\n    }\n    /**\n     * Sets or modifies a value for a given header in a clone of the original instance.\n     * If the header already exists, its value is replaced with the given value\n     * in the returned object.\n     *\n     * @param name The header name.\n     * @param value The value or values to set or override for the given header.\n     *\n     * @returns A clone of the HTTP headers object with the newly set header value.\n     */\n    set(name, value) {\n        return this.clone({ name, value, op: 's' });\n    }\n    /**\n     * Deletes values for a given header in a clone of the original instance.\n     *\n     * @param name The header name.\n     * @param value The value or values to delete for the given header.\n     *\n     * @returns A clone of the HTTP headers object with the given value deleted.\n     */\n    delete(name, value) {\n        return this.clone({ name, value, op: 'd' });\n    }\n    maybeSetNormalizedName(name, lcName) {\n        if (!this.normalizedNames.has(lcName)) {\n            this.normalizedNames.set(lcName, name);\n        }\n    }\n    init() {\n        if (!!this.lazyInit) {\n            if (this.lazyInit instanceof HttpHeaders) {\n                this.copyFrom(this.lazyInit);\n            }\n            else {\n                this.lazyInit();\n            }\n            this.lazyInit = null;\n            if (!!this.lazyUpdate) {\n                this.lazyUpdate.forEach(update => this.applyUpdate(update));\n                this.lazyUpdate = null;\n            }\n        }\n    }\n    copyFrom(other) {\n        other.init();\n        Array.from(other.headers.keys()).forEach(key => {\n            this.headers.set(key, other.headers.get(key));\n            this.normalizedNames.set(key, other.normalizedNames.get(key));\n        });\n    }\n    clone(update) {\n        const clone = new HttpHeaders();\n        clone.lazyInit =\n            (!!this.lazyInit && this.lazyInit instanceof HttpHeaders) ? this.lazyInit : this;\n        clone.lazyUpdate = (this.lazyUpdate || []).concat([update]);\n        return clone;\n    }\n    applyUpdate(update) {\n        const key = update.name.toLowerCase();\n        switch (update.op) {\n            case 'a':\n            case 's':\n                let value = update.value;\n                if (typeof value === 'string') {\n                    value = [value];\n                }\n                if (value.length === 0) {\n                    return;\n                }\n                this.maybeSetNormalizedName(update.name, key);\n                const base = (update.op === 'a' ? this.headers.get(key) : undefined) || [];\n                base.push(...value);\n                this.headers.set(key, base);\n                break;\n            case 'd':\n                const toDelete = update.value;\n                if (!toDelete) {\n                    this.headers.delete(key);\n                    this.normalizedNames.delete(key);\n                }\n                else {\n                    let existing = this.headers.get(key);\n                    if (!existing) {\n                        return;\n                    }\n                    existing = existing.filter(value => toDelete.indexOf(value) === -1);\n                    if (existing.length === 0) {\n                        this.headers.delete(key);\n                        this.normalizedNames.delete(key);\n                    }\n                    else {\n                        this.headers.set(key, existing);\n                    }\n                }\n                break;\n        }\n    }\n    setHeaderEntries(name, values) {\n        const headerValues = (Array.isArray(values) ? values : [values]).map((value) => value.toString());\n        const key = name.toLowerCase();\n        this.headers.set(key, headerValues);\n        this.maybeSetNormalizedName(name, key);\n    }\n    /**\n     * @internal\n     */\n    forEach(fn) {\n        this.init();\n        Array.from(this.normalizedNames.keys())\n            .forEach(key => fn(this.normalizedNames.get(key), this.headers.get(key)));\n    }\n}\n/**\n * Verifies that the headers object has the right shape: the values\n * must be either strings, numbers or arrays. Throws an error if an invalid\n * header value is present.\n */\nfunction assertValidHeaders(headers) {\n    for (const [key, value] of Object.entries(headers)) {\n        if (!(typeof value === 'string' || typeof value === 'number') && !Array.isArray(value)) {\n            throw new Error(`Unexpected value of the \\`${key}\\` header provided. ` +\n                `Expecting either a string, a number or an array, but got: \\`${value}\\`.`);\n        }\n    }\n}\n\n/**\n * Provides encoding and decoding of URL parameter and query-string values.\n *\n * Serializes and parses URL parameter keys and values to encode and decode them.\n * If you pass URL query parameters without encoding,\n * the query parameters can be misinterpreted at the receiving end.\n *\n *\n * @publicApi\n */\nclass HttpUrlEncodingCodec {\n    /**\n     * Encodes a key name for a URL parameter or query-string.\n     * @param key The key name.\n     * @returns The encoded key name.\n     */\n    encodeKey(key) {\n        return standardEncoding(key);\n    }\n    /**\n     * Encodes the value of a URL parameter or query-string.\n     * @param value The value.\n     * @returns The encoded value.\n     */\n    encodeValue(value) {\n        return standardEncoding(value);\n    }\n    /**\n     * Decodes an encoded URL parameter or query-string key.\n     * @param key The encoded key name.\n     * @returns The decoded key name.\n     */\n    decodeKey(key) {\n        return decodeURIComponent(key);\n    }\n    /**\n     * Decodes an encoded URL parameter or query-string value.\n     * @param value The encoded value.\n     * @returns The decoded value.\n     */\n    decodeValue(value) {\n        return decodeURIComponent(value);\n    }\n}\nfunction paramParser(rawParams, codec) {\n    const map = new Map();\n    if (rawParams.length > 0) {\n        // The `window.location.search` can be used while creating an instance of the `HttpParams` class\n        // (e.g. `new HttpParams({ fromString: window.location.search })`). The `window.location.search`\n        // may start with the `?` char, so we strip it if it's present.\n        const params = rawParams.replace(/^\\?/, '').split('&');\n        params.forEach((param) => {\n            const eqIdx = param.indexOf('=');\n            const [key, val] = eqIdx == -1 ?\n                [codec.decodeKey(param), ''] :\n                [codec.decodeKey(param.slice(0, eqIdx)), codec.decodeValue(param.slice(eqIdx + 1))];\n            const list = map.get(key) || [];\n            list.push(val);\n            map.set(key, list);\n        });\n    }\n    return map;\n}\n/**\n * Encode input string with standard encodeURIComponent and then un-encode specific characters.\n */\nconst STANDARD_ENCODING_REGEX = /%(\\d[a-f0-9])/gi;\nconst STANDARD_ENCODING_REPLACEMENTS = {\n    '40': '@',\n    '3A': ':',\n    '24': '$',\n    '2C': ',',\n    '3B': ';',\n    '3D': '=',\n    '3F': '?',\n    '2F': '/',\n};\nfunction standardEncoding(v) {\n    return encodeURIComponent(v).replace(STANDARD_ENCODING_REGEX, (s, t) => STANDARD_ENCODING_REPLACEMENTS[t] ?? s);\n}\nfunction valueToString(value) {\n    return `${value}`;\n}\n/**\n * An HTTP request/response body that represents serialized parameters,\n * per the MIME type `application/x-www-form-urlencoded`.\n *\n * This class is immutable; all mutation operations return a new instance.\n *\n * @publicApi\n */\nclass HttpParams {\n    constructor(options = {}) {\n        this.updates = null;\n        this.cloneFrom = null;\n        this.encoder = options.encoder || new HttpUrlEncodingCodec();\n        if (!!options.fromString) {\n            if (!!options.fromObject) {\n                throw new Error(`Cannot specify both fromString and fromObject.`);\n            }\n            this.map = paramParser(options.fromString, this.encoder);\n        }\n        else if (!!options.fromObject) {\n            this.map = new Map();\n            Object.keys(options.fromObject).forEach(key => {\n                const value = options.fromObject[key];\n                // convert the values to strings\n                const values = Array.isArray(value) ? value.map(valueToString) : [valueToString(value)];\n                this.map.set(key, values);\n            });\n        }\n        else {\n            this.map = null;\n        }\n    }\n    /**\n     * Reports whether the body includes one or more values for a given parameter.\n     * @param param The parameter name.\n     * @returns True if the parameter has one or more values,\n     * false if it has no value or is not present.\n     */\n    has(param) {\n        this.init();\n        return this.map.has(param);\n    }\n    /**\n     * Retrieves the first value for a parameter.\n     * @param param The parameter name.\n     * @returns The first value of the given parameter,\n     * or `null` if the parameter is not present.\n     */\n    get(param) {\n        this.init();\n        const res = this.map.get(param);\n        return !!res ? res[0] : null;\n    }\n    /**\n     * Retrieves all values for a  parameter.\n     * @param param The parameter name.\n     * @returns All values in a string array,\n     * or `null` if the parameter not present.\n     */\n    getAll(param) {\n        this.init();\n        return this.map.get(param) || null;\n    }\n    /**\n     * Retrieves all the parameters for this body.\n     * @returns The parameter names in a string array.\n     */\n    keys() {\n        this.init();\n        return Array.from(this.map.keys());\n    }\n    /**\n     * Appends a new value to existing values for a parameter.\n     * @param param The parameter name.\n     * @param value The new value to add.\n     * @return A new body with the appended value.\n     */\n    append(param, value) {\n        return this.clone({ param, value, op: 'a' });\n    }\n    /**\n     * Constructs a new body with appended values for the given parameter name.\n     * @param params parameters and values\n     * @return A new body with the new value.\n     */\n    appendAll(params) {\n        const updates = [];\n        Object.keys(params).forEach(param => {\n            const value = params[param];\n            if (Array.isArray(value)) {\n                value.forEach(_value => {\n                    updates.push({ param, value: _value, op: 'a' });\n                });\n            }\n            else {\n                updates.push({ param, value: value, op: 'a' });\n            }\n        });\n        return this.clone(updates);\n    }\n    /**\n     * Replaces the value for a parameter.\n     * @param param The parameter name.\n     * @param value The new value.\n     * @return A new body with the new value.\n     */\n    set(param, value) {\n        return this.clone({ param, value, op: 's' });\n    }\n    /**\n     * Removes a given value or all values from a parameter.\n     * @param param The parameter name.\n     * @param value The value to remove, if provided.\n     * @return A new body with the given value removed, or with all values\n     * removed if no value is specified.\n     */\n    delete(param, value) {\n        return this.clone({ param, value, op: 'd' });\n    }\n    /**\n     * Serializes the body to an encoded string, where key-value pairs (separated by `=`) are\n     * separated by `&`s.\n     */\n    toString() {\n        this.init();\n        return this.keys()\n            .map(key => {\n            const eKey = this.encoder.encodeKey(key);\n            // `a: ['1']` produces `'a=1'`\n            // `b: []` produces `''`\n            // `c: ['1', '2']` produces `'c=1&c=2'`\n            return this.map.get(key).map(value => eKey + '=' + this.encoder.encodeValue(value))\n                .join('&');\n        })\n            // filter out empty values because `b: []` produces `''`\n            // which results in `a=1&&c=1&c=2` instead of `a=1&c=1&c=2` if we don't\n            .filter(param => param !== '')\n            .join('&');\n    }\n    clone(update) {\n        const clone = new HttpParams({ encoder: this.encoder });\n        clone.cloneFrom = this.cloneFrom || this;\n        clone.updates = (this.updates || []).concat(update);\n        return clone;\n    }\n    init() {\n        if (this.map === null) {\n            this.map = new Map();\n        }\n        if (this.cloneFrom !== null) {\n            this.cloneFrom.init();\n            this.cloneFrom.keys().forEach(key => this.map.set(key, this.cloneFrom.map.get(key)));\n            this.updates.forEach(update => {\n                switch (update.op) {\n                    case 'a':\n                    case 's':\n                        const base = (update.op === 'a' ? this.map.get(update.param) : undefined) || [];\n                        base.push(valueToString(update.value));\n                        this.map.set(update.param, base);\n                        break;\n                    case 'd':\n                        if (update.value !== undefined) {\n                            let base = this.map.get(update.param) || [];\n                            const idx = base.indexOf(valueToString(update.value));\n                            if (idx !== -1) {\n                                base.splice(idx, 1);\n                            }\n                            if (base.length > 0) {\n                                this.map.set(update.param, base);\n                            }\n                            else {\n                                this.map.delete(update.param);\n                            }\n                        }\n                        else {\n                            this.map.delete(update.param);\n                            break;\n                        }\n                }\n            });\n            this.cloneFrom = this.updates = null;\n        }\n    }\n}\n\n/**\n * A token used to manipulate and access values stored in `HttpContext`.\n *\n * @publicApi\n */\nclass HttpContextToken {\n    constructor(defaultValue) {\n        this.defaultValue = defaultValue;\n    }\n}\n/**\n * Http context stores arbitrary user defined values and ensures type safety without\n * actually knowing the types. It is backed by a `Map` and guarantees that keys do not clash.\n *\n * This context is mutable and is shared between cloned requests unless explicitly specified.\n *\n * @usageNotes\n *\n * ### Usage Example\n *\n * ```typescript\n * // inside cache.interceptors.ts\n * export const IS_CACHE_ENABLED = new HttpContextToken<boolean>(() => false);\n *\n * export class CacheInterceptor implements HttpInterceptor {\n *\n *   intercept(req: HttpRequest<any>, delegate: HttpHandler): Observable<HttpEvent<any>> {\n *     if (req.context.get(IS_CACHE_ENABLED) === true) {\n *       return ...;\n *     }\n *     return delegate.handle(req);\n *   }\n * }\n *\n * // inside a service\n *\n * this.httpClient.get('/api/weather', {\n *   context: new HttpContext().set(IS_CACHE_ENABLED, true)\n * }).subscribe(...);\n * ```\n *\n * @publicApi\n */\nclass HttpContext {\n    constructor() {\n        this.map = new Map();\n    }\n    /**\n     * Store a value in the context. If a value is already present it will be overwritten.\n     *\n     * @param token The reference to an instance of `HttpContextToken`.\n     * @param value The value to store.\n     *\n     * @returns A reference to itself for easy chaining.\n     */\n    set(token, value) {\n        this.map.set(token, value);\n        return this;\n    }\n    /**\n     * Retrieve the value associated with the given token.\n     *\n     * @param token The reference to an instance of `HttpContextToken`.\n     *\n     * @returns The stored value or default if one is defined.\n     */\n    get(token) {\n        if (!this.map.has(token)) {\n            this.map.set(token, token.defaultValue());\n        }\n        return this.map.get(token);\n    }\n    /**\n     * Delete the value associated with the given token.\n     *\n     * @param token The reference to an instance of `HttpContextToken`.\n     *\n     * @returns A reference to itself for easy chaining.\n     */\n    delete(token) {\n        this.map.delete(token);\n        return this;\n    }\n    /**\n     * Checks for existence of a given token.\n     *\n     * @param token The reference to an instance of `HttpContextToken`.\n     *\n     * @returns True if the token exists, false otherwise.\n     */\n    has(token) {\n        return this.map.has(token);\n    }\n    /**\n     * @returns a list of tokens currently stored in the context.\n     */\n    keys() {\n        return this.map.keys();\n    }\n}\n\n/**\n * Determine whether the given HTTP method may include a body.\n */\nfunction mightHaveBody(method) {\n    switch (method) {\n        case 'DELETE':\n        case 'GET':\n        case 'HEAD':\n        case 'OPTIONS':\n        case 'JSONP':\n            return false;\n        default:\n            return true;\n    }\n}\n/**\n * Safely assert whether the given value is an ArrayBuffer.\n *\n * In some execution environments ArrayBuffer is not defined.\n */\nfunction isArrayBuffer(value) {\n    return typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer;\n}\n/**\n * Safely assert whether the given value is a Blob.\n *\n * In some execution environments Blob is not defined.\n */\nfunction isBlob(value) {\n    return typeof Blob !== 'undefined' && value instanceof Blob;\n}\n/**\n * Safely assert whether the given value is a FormData instance.\n *\n * In some execution environments FormData is not defined.\n */\nfunction isFormData(value) {\n    return typeof FormData !== 'undefined' && value instanceof FormData;\n}\n/**\n * Safely assert whether the given value is a URLSearchParams instance.\n *\n * In some execution environments URLSearchParams is not defined.\n */\nfunction isUrlSearchParams(value) {\n    return typeof URLSearchParams !== 'undefined' && value instanceof URLSearchParams;\n}\n/**\n * An outgoing HTTP request with an optional typed body.\n *\n * `HttpRequest` represents an outgoing request, including URL, method,\n * headers, body, and other request configuration options. Instances should be\n * assumed to be immutable. To modify a `HttpRequest`, the `clone`\n * method should be used.\n *\n * @publicApi\n */\nclass HttpRequest {\n    constructor(method, url, third, fourth) {\n        this.url = url;\n        /**\n         * The request body, or `null` if one isn't set.\n         *\n         * Bodies are not enforced to be immutable, as they can include a reference to any\n         * user-defined data type. However, interceptors should take care to preserve\n         * idempotence by treating them as such.\n         */\n        this.body = null;\n        /**\n         * Whether this request should be made in a way that exposes progress events.\n         *\n         * Progress events are expensive (change detection runs on each event) and so\n         * they should only be requested if the consumer intends to monitor them.\n         *\n         * Note: The `FetchBackend` doesn't support progress report on uploads.\n         */\n        this.reportProgress = false;\n        /**\n         * Whether this request should be sent with outgoing credentials (cookies).\n         */\n        this.withCredentials = false;\n        /**\n         * The expected response type of the server.\n         *\n         * This is used to parse the response appropriately before returning it to\n         * the requestee.\n         */\n        this.responseType = 'json';\n        this.method = method.toUpperCase();\n        // Next, need to figure out which argument holds the HttpRequestInit\n        // options, if any.\n        let options;\n        // Check whether a body argument is expected. The only valid way to omit\n        // the body argument is to use a known no-body method like GET.\n        if (mightHaveBody(this.method) || !!fourth) {\n            // Body is the third argument, options are the fourth.\n            this.body = (third !== undefined) ? third : null;\n            options = fourth;\n        }\n        else {\n            // No body required, options are the third argument. The body stays null.\n            options = third;\n        }\n        // If options have been passed, interpret them.\n        if (options) {\n            // Normalize reportProgress and withCredentials.\n            this.reportProgress = !!options.reportProgress;\n            this.withCredentials = !!options.withCredentials;\n            // Override default response type of 'json' if one is provided.\n            if (!!options.responseType) {\n                this.responseType = options.responseType;\n            }\n            // Override headers if they're provided.\n            if (!!options.headers) {\n                this.headers = options.headers;\n            }\n            if (!!options.context) {\n                this.context = options.context;\n            }\n            if (!!options.params) {\n                this.params = options.params;\n            }\n        }\n        // If no headers have been passed in, construct a new HttpHeaders instance.\n        if (!this.headers) {\n            this.headers = new HttpHeaders();\n        }\n        // If no context have been passed in, construct a new HttpContext instance.\n        if (!this.context) {\n            this.context = new HttpContext();\n        }\n        // If no parameters have been passed in, construct a new HttpUrlEncodedParams instance.\n        if (!this.params) {\n            this.params = new HttpParams();\n            this.urlWithParams = url;\n        }\n        else {\n            // Encode the parameters to a string in preparation for inclusion in the URL.\n            const params = this.params.toString();\n            if (params.length === 0) {\n                // No parameters, the visible URL is just the URL given at creation time.\n                this.urlWithParams = url;\n            }\n            else {\n                // Does the URL already have query parameters? Look for '?'.\n                const qIdx = url.indexOf('?');\n                // There are 3 cases to handle:\n                // 1) No existing parameters -> append '?' followed by params.\n                // 2) '?' exists and is followed by existing query string ->\n                //    append '&' followed by params.\n                // 3) '?' exists at the end of the url -> append params directly.\n                // This basically amounts to determining the character, if any, with\n                // which to join the URL and parameters.\n                const sep = qIdx === -1 ? '?' : (qIdx < url.length - 1 ? '&' : '');\n                this.urlWithParams = url + sep + params;\n            }\n        }\n    }\n    /**\n     * Transform the free-form body into a serialized format suitable for\n     * transmission to the server.\n     */\n    serializeBody() {\n        // If no body is present, no need to serialize it.\n        if (this.body === null) {\n            return null;\n        }\n        // Check whether the body is already in a serialized form. If so,\n        // it can just be returned directly.\n        if (isArrayBuffer(this.body) || isBlob(this.body) || isFormData(this.body) ||\n            isUrlSearchParams(this.body) || typeof this.body === 'string') {\n            return this.body;\n        }\n        // Check whether the body is an instance of HttpUrlEncodedParams.\n        if (this.body instanceof HttpParams) {\n            return this.body.toString();\n        }\n        // Check whether the body is an object or array, and serialize with JSON if so.\n        if (typeof this.body === 'object' || typeof this.body === 'boolean' ||\n            Array.isArray(this.body)) {\n            return JSON.stringify(this.body);\n        }\n        // Fall back on toString() for everything else.\n        return this.body.toString();\n    }\n    /**\n     * Examine the body and attempt to infer an appropriate MIME type\n     * for it.\n     *\n     * If no such type can be inferred, this method will return `null`.\n     */\n    detectContentTypeHeader() {\n        // An empty body has no content type.\n        if (this.body === null) {\n            return null;\n        }\n        // FormData bodies rely on the browser's content type assignment.\n        if (isFormData(this.body)) {\n            return null;\n        }\n        // Blobs usually have their own content type. If it doesn't, then\n        // no type can be inferred.\n        if (isBlob(this.body)) {\n            return this.body.type || null;\n        }\n        // Array buffers have unknown contents and thus no type can be inferred.\n        if (isArrayBuffer(this.body)) {\n            return null;\n        }\n        // Technically, strings could be a form of JSON data, but it's safe enough\n        // to assume they're plain strings.\n        if (typeof this.body === 'string') {\n            return 'text/plain';\n        }\n        // `HttpUrlEncodedParams` has its own content-type.\n        if (this.body instanceof HttpParams) {\n            return 'application/x-www-form-urlencoded;charset=UTF-8';\n        }\n        // Arrays, objects, boolean and numbers will be encoded as JSON.\n        if (typeof this.body === 'object' || typeof this.body === 'number' ||\n            typeof this.body === 'boolean') {\n            return 'application/json';\n        }\n        // No type could be inferred.\n        return null;\n    }\n    clone(update = {}) {\n        // For method, url, and responseType, take the current value unless\n        // it is overridden in the update hash.\n        const method = update.method || this.method;\n        const url = update.url || this.url;\n        const responseType = update.responseType || this.responseType;\n        // The body is somewhat special - a `null` value in update.body means\n        // whatever current body is present is being overridden with an empty\n        // body, whereas an `undefined` value in update.body implies no\n        // override.\n        const body = (update.body !== undefined) ? update.body : this.body;\n        // Carefully handle the boolean options to differentiate between\n        // `false` and `undefined` in the update args.\n        const withCredentials = (update.withCredentials !== undefined) ? update.withCredentials : this.withCredentials;\n        const reportProgress = (update.reportProgress !== undefined) ? update.reportProgress : this.reportProgress;\n        // Headers and params may be appended to if `setHeaders` or\n        // `setParams` are used.\n        let headers = update.headers || this.headers;\n        let params = update.params || this.params;\n        // Pass on context if needed\n        const context = update.context ?? this.context;\n        // Check whether the caller has asked to add headers.\n        if (update.setHeaders !== undefined) {\n            // Set every requested header.\n            headers =\n                Object.keys(update.setHeaders)\n                    .reduce((headers, name) => headers.set(name, update.setHeaders[name]), headers);\n        }\n        // Check whether the caller has asked to set params.\n        if (update.setParams) {\n            // Set every requested param.\n            params = Object.keys(update.setParams)\n                .reduce((params, param) => params.set(param, update.setParams[param]), params);\n        }\n        // Finally, construct the new HttpRequest using the pieces from above.\n        return new HttpRequest(method, url, body, {\n            params,\n            headers,\n            context,\n            reportProgress,\n            responseType,\n            withCredentials,\n        });\n    }\n}\n\n/**\n * Type enumeration for the different kinds of `HttpEvent`.\n *\n * @publicApi\n */\nvar HttpEventType;\n(function (HttpEventType) {\n    /**\n     * The request was sent out over the wire.\n     */\n    HttpEventType[HttpEventType[\"Sent\"] = 0] = \"Sent\";\n    /**\n     * An upload progress event was received.\n     *\n     * Note: The `FetchBackend` doesn't support progress report on uploads.\n     */\n    HttpEventType[HttpEventType[\"UploadProgress\"] = 1] = \"UploadProgress\";\n    /**\n     * The response status code and headers were received.\n     */\n    HttpEventType[HttpEventType[\"ResponseHeader\"] = 2] = \"ResponseHeader\";\n    /**\n     * A download progress event was received.\n     */\n    HttpEventType[HttpEventType[\"DownloadProgress\"] = 3] = \"DownloadProgress\";\n    /**\n     * The full response including the body was received.\n     */\n    HttpEventType[HttpEventType[\"Response\"] = 4] = \"Response\";\n    /**\n     * A custom event from an interceptor or a backend.\n     */\n    HttpEventType[HttpEventType[\"User\"] = 5] = \"User\";\n})(HttpEventType || (HttpEventType = {}));\n/**\n * Base class for both `HttpResponse` and `HttpHeaderResponse`.\n *\n * @publicApi\n */\nclass HttpResponseBase {\n    /**\n     * Super-constructor for all responses.\n     *\n     * The single parameter accepted is an initialization hash. Any properties\n     * of the response passed there will override the default values.\n     */\n    constructor(init, defaultStatus = 200 /* HttpStatusCode.Ok */, defaultStatusText = 'OK') {\n        // If the hash has values passed, use them to initialize the response.\n        // Otherwise use the default values.\n        this.headers = init.headers || new HttpHeaders();\n        this.status = init.status !== undefined ? init.status : defaultStatus;\n        this.statusText = init.statusText || defaultStatusText;\n        this.url = init.url || null;\n        // Cache the ok value to avoid defining a getter.\n        this.ok = this.status >= 200 && this.status < 300;\n    }\n}\n/**\n * A partial HTTP response which only includes the status and header data,\n * but no response body.\n *\n * `HttpHeaderResponse` is a `HttpEvent` available on the response\n * event stream, only when progress events are requested.\n *\n * @publicApi\n */\nclass HttpHeaderResponse extends HttpResponseBase {\n    /**\n     * Create a new `HttpHeaderResponse` with the given parameters.\n     */\n    constructor(init = {}) {\n        super(init);\n        this.type = HttpEventType.ResponseHeader;\n    }\n    /**\n     * Copy this `HttpHeaderResponse`, overriding its contents with the\n     * given parameter hash.\n     */\n    clone(update = {}) {\n        // Perform a straightforward initialization of the new HttpHeaderResponse,\n        // overriding the current parameters with new ones if given.\n        return new HttpHeaderResponse({\n            headers: update.headers || this.headers,\n            status: update.status !== undefined ? update.status : this.status,\n            statusText: update.statusText || this.statusText,\n            url: update.url || this.url || undefined,\n        });\n    }\n}\n/**\n * A full HTTP response, including a typed response body (which may be `null`\n * if one was not returned).\n *\n * `HttpResponse` is a `HttpEvent` available on the response event\n * stream.\n *\n * @publicApi\n */\nclass HttpResponse extends HttpResponseBase {\n    /**\n     * Construct a new `HttpResponse`.\n     */\n    constructor(init = {}) {\n        super(init);\n        this.type = HttpEventType.Response;\n        this.body = init.body !== undefined ? init.body : null;\n    }\n    clone(update = {}) {\n        return new HttpResponse({\n            body: (update.body !== undefined) ? update.body : this.body,\n            headers: update.headers || this.headers,\n            status: (update.status !== undefined) ? update.status : this.status,\n            statusText: update.statusText || this.statusText,\n            url: update.url || this.url || undefined,\n        });\n    }\n}\n/**\n * A response that represents an error or failure, either from a\n * non-successful HTTP status, an error while executing the request,\n * or some other failure which occurred during the parsing of the response.\n *\n * Any error returned on the `Observable` response stream will be\n * wrapped in an `HttpErrorResponse` to provide additional context about\n * the state of the HTTP layer when the error occurred. The error property\n * will contain either a wrapped Error object or the error response returned\n * from the server.\n *\n * @publicApi\n */\nclass HttpErrorResponse extends HttpResponseBase {\n    constructor(init) {\n        // Initialize with a default status of 0 / Unknown Error.\n        super(init, 0, 'Unknown Error');\n        this.name = 'HttpErrorResponse';\n        /**\n         * Errors are never okay, even when the status code is in the 2xx success range.\n         */\n        this.ok = false;\n        // If the response was successful, then this was a parse error. Otherwise, it was\n        // a protocol-level failure of some sort. Either the request failed in transit\n        // or the server returned an unsuccessful status code.\n        if (this.status >= 200 && this.status < 300) {\n            this.message = `Http failure during parsing for ${init.url || '(unknown url)'}`;\n        }\n        else {\n            this.message = `Http failure response for ${init.url || '(unknown url)'}: ${init.status} ${init.statusText}`;\n        }\n        this.error = init.error || null;\n    }\n}\n\n/**\n * Constructs an instance of `HttpRequestOptions<T>` from a source `HttpMethodOptions` and\n * the given `body`. This function clones the object and adds the body.\n *\n * Note that the `responseType` *options* value is a String that identifies the\n * single data type of the response.\n * A single overload version of the method handles each response type.\n * The value of `responseType` cannot be a union, as the combined signature could imply.\n *\n */\nfunction addBody(options, body) {\n    return {\n        body,\n        headers: options.headers,\n        context: options.context,\n        observe: options.observe,\n        params: options.params,\n        reportProgress: options.reportProgress,\n        responseType: options.responseType,\n        withCredentials: options.withCredentials,\n    };\n}\n/**\n * Performs HTTP requests.\n * This service is available as an injectable class, with methods to perform HTTP requests.\n * Each request method has multiple signatures, and the return type varies based on\n * the signature that is called (mainly the values of `observe` and `responseType`).\n *\n * Note that the `responseType` *options* value is a String that identifies the\n * single data type of the response.\n * A single overload version of the method handles each response type.\n * The value of `responseType` cannot be a union, as the combined signature could imply.\n\n *\n * @usageNotes\n * Sample HTTP requests for the [Tour of Heroes](/tutorial/tour-of-heroes/toh-pt0) application.\n *\n * ### HTTP Request Example\n *\n * ```\n *  // GET heroes whose name contains search term\n * searchHeroes(term: string): observable<Hero[]>{\n *\n *  const params = new HttpParams({fromString: 'name=term'});\n *    return this.httpClient.request('GET', this.heroesUrl, {responseType:'json', params});\n * }\n * ```\n *\n * Alternatively, the parameter string can be used without invoking HttpParams\n * by directly joining to the URL.\n * ```\n * this.httpClient.request('GET', this.heroesUrl + '?' + 'name=term', {responseType:'json'});\n * ```\n *\n *\n * ### JSONP Example\n * ```\n * requestJsonp(url, callback = 'callback') {\n *  return this.httpClient.jsonp(this.heroesURL, callback);\n * }\n * ```\n *\n * ### PATCH Example\n * ```\n * // PATCH one of the heroes' name\n * patchHero (id: number, heroName: string): Observable<{}> {\n * const url = `${this.heroesUrl}/${id}`;   // PATCH api/heroes/42\n *  return this.httpClient.patch(url, {name: heroName}, httpOptions)\n *    .pipe(catchError(this.handleError('patchHero')));\n * }\n * ```\n *\n * @see [HTTP Guide](guide/understanding-communicating-with-http)\n * @see [HTTP Request](api/common/http/HttpRequest)\n *\n * @publicApi\n */\nclass HttpClient {\n    constructor(handler) {\n        this.handler = handler;\n    }\n    /**\n     * Constructs an observable for a generic HTTP request that, when subscribed,\n     * fires the request through the chain of registered interceptors and on to the\n     * server.\n     *\n     * You can pass an `HttpRequest` directly as the only parameter. In this case,\n     * the call returns an observable of the raw `HttpEvent` stream.\n     *\n     * Alternatively you can pass an HTTP method as the first parameter,\n     * a URL string as the second, and an options hash containing the request body as the third.\n     * See `addBody()`. In this case, the specified `responseType` and `observe` options determine the\n     * type of returned observable.\n     *   * The `responseType` value determines how a successful response body is parsed.\n     *   * If `responseType` is the default `json`, you can pass a type interface for the resulting\n     * object as a type parameter to the call.\n     *\n     * The `observe` value determines the return type, according to what you are interested in\n     * observing.\n     *   * An `observe` value of events returns an observable of the raw `HttpEvent` stream, including\n     * progress events by default.\n     *   * An `observe` value of response returns an observable of `HttpResponse<T>`,\n     * where the `T` parameter depends on the `responseType` and any optionally provided type\n     * parameter.\n     *   * An `observe` value of body returns an observable of `<T>` with the same `T` body type.\n     *\n     */\n    request(first, url, options = {}) {\n        let req;\n        // First, check whether the primary argument is an instance of `HttpRequest`.\n        if (first instanceof HttpRequest) {\n            // It is. The other arguments must be undefined (per the signatures) and can be\n            // ignored.\n            req = first;\n        }\n        else {\n            // It's a string, so it represents a URL. Construct a request based on it,\n            // and incorporate the remaining arguments (assuming `GET` unless a method is\n            // provided.\n            // Figure out the headers.\n            let headers = undefined;\n            if (options.headers instanceof HttpHeaders) {\n                headers = options.headers;\n            }\n            else {\n                headers = new HttpHeaders(options.headers);\n            }\n            // Sort out parameters.\n            let params = undefined;\n            if (!!options.params) {\n                if (options.params instanceof HttpParams) {\n                    params = options.params;\n                }\n                else {\n                    params = new HttpParams({ fromObject: options.params });\n                }\n            }\n            // Construct the request.\n            req = new HttpRequest(first, url, (options.body !== undefined ? options.body : null), {\n                headers,\n                context: options.context,\n                params,\n                reportProgress: options.reportProgress,\n                // By default, JSON is assumed to be returned for all calls.\n                responseType: options.responseType || 'json',\n                withCredentials: options.withCredentials,\n            });\n        }\n        // Start with an Observable.of() the initial request, and run the handler (which\n        // includes all interceptors) inside a concatMap(). This way, the handler runs\n        // inside an Observable chain, which causes interceptors to be re-run on every\n        // subscription (this also makes retries re-run the handler, including interceptors).\n        const events$ = of(req).pipe(concatMap((req) => this.handler.handle(req)));\n        // If coming via the API signature which accepts a previously constructed HttpRequest,\n        // the only option is to get the event stream. Otherwise, return the event stream if\n        // that is what was requested.\n        if (first instanceof HttpRequest || options.observe === 'events') {\n            return events$;\n        }\n        // The requested stream contains either the full response or the body. In either\n        // case, the first step is to filter the event stream to extract a stream of\n        // responses(s).\n        const res$ = events$.pipe(filter((event) => event instanceof HttpResponse));\n        // Decide which stream to return.\n        switch (options.observe || 'body') {\n            case 'body':\n                // The requested stream is the body. Map the response stream to the response\n                // body. This could be done more simply, but a misbehaving interceptor might\n                // transform the response body into a different format and ignore the requested\n                // responseType. Guard against this by validating that the response is of the\n                // requested type.\n                switch (req.responseType) {\n                    case 'arraybuffer':\n                        return res$.pipe(map((res) => {\n                            // Validate that the body is an ArrayBuffer.\n                            if (res.body !== null && !(res.body instanceof ArrayBuffer)) {\n                                throw new Error('Response is not an ArrayBuffer.');\n                            }\n                            return res.body;\n                        }));\n                    case 'blob':\n                        return res$.pipe(map((res) => {\n                            // Validate that the body is a Blob.\n                            if (res.body !== null && !(res.body instanceof Blob)) {\n                                throw new Error('Response is not a Blob.');\n                            }\n                            return res.body;\n                        }));\n                    case 'text':\n                        return res$.pipe(map((res) => {\n                            // Validate that the body is a string.\n                            if (res.body !== null && typeof res.body !== 'string') {\n                                throw new Error('Response is not a string.');\n                            }\n                            return res.body;\n                        }));\n                    case 'json':\n                    default:\n                        // No validation needed for JSON responses, as they can be of any type.\n                        return res$.pipe(map((res) => res.body));\n                }\n            case 'response':\n                // The response stream was requested directly, so return it.\n                return res$;\n            default:\n                // Guard against new future observe types being added.\n                throw new Error(`Unreachable: unhandled observe type ${options.observe}}`);\n        }\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `DELETE` request to execute on the server. See the individual overloads for\n     * details on the return type.\n     *\n     * @param url     The endpoint URL.\n     * @param options The HTTP options to send with the request.\n     *\n     */\n    delete(url, options = {}) {\n        return this.request('DELETE', url, options);\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `GET` request to execute on the server. See the individual overloads for\n     * details on the return type.\n     */\n    get(url, options = {}) {\n        return this.request('GET', url, options);\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `HEAD` request to execute on the server. The `HEAD` method returns\n     * meta information about the resource without transferring the\n     * resource itself. See the individual overloads for\n     * details on the return type.\n     */\n    head(url, options = {}) {\n        return this.request('HEAD', url, options);\n    }\n    /**\n     * Constructs an `Observable` that, when subscribed, causes a request with the special method\n     * `JSONP` to be dispatched via the interceptor pipeline.\n     * The [JSONP pattern](https://en.wikipedia.org/wiki/JSONP) works around limitations of certain\n     * API endpoints that don't support newer,\n     * and preferable [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) protocol.\n     * JSONP treats the endpoint API as a JavaScript file and tricks the browser to process the\n     * requests even if the API endpoint is not located on the same domain (origin) as the client-side\n     * application making the request.\n     * The endpoint API must support JSONP callback for JSONP requests to work.\n     * The resource API returns the JSON response wrapped in a callback function.\n     * You can pass the callback function name as one of the query parameters.\n     * Note that JSONP requests can only be used with `GET` requests.\n     *\n     * @param url The resource URL.\n     * @param callbackParam The callback function name.\n     *\n     */\n    jsonp(url, callbackParam) {\n        return this.request('JSONP', url, {\n            params: new HttpParams().append(callbackParam, 'JSONP_CALLBACK'),\n            observe: 'body',\n            responseType: 'json',\n        });\n    }\n    /**\n     * Constructs an `Observable` that, when subscribed, causes the configured\n     * `OPTIONS` request to execute on the server. This method allows the client\n     * to determine the supported HTTP methods and other capabilities of an endpoint,\n     * without implying a resource action. See the individual overloads for\n     * details on the return type.\n     */\n    options(url, options = {}) {\n        return this.request('OPTIONS', url, options);\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `PATCH` request to execute on the server. See the individual overloads for\n     * details on the return type.\n     */\n    patch(url, body, options = {}) {\n        return this.request('PATCH', url, addBody(options, body));\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `POST` request to execute on the server. The server responds with the location of\n     * the replaced resource. See the individual overloads for\n     * details on the return type.\n     */\n    post(url, body, options = {}) {\n        return this.request('POST', url, addBody(options, body));\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `PUT` request to execute on the server. The `PUT` method replaces an existing resource\n     * with a new set of values.\n     * See the individual overloads for details on the return type.\n     */\n    put(url, body, options = {}) {\n        return this.request('PUT', url, addBody(options, body));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClient, deps: [{ token: HttpHandler }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClient }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClient, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: HttpHandler }]; } });\n\nconst XSSI_PREFIX$1 = /^\\)\\]\\}',?\\n/;\nconst REQUEST_URL_HEADER = `X-Request-URL`;\n/**\n * Determine an appropriate URL for the response, by checking either\n * response url or the X-Request-URL header.\n */\nfunction getResponseUrl$1(response) {\n    if (response.url) {\n        return response.url;\n    }\n    // stored as lowercase in the map\n    const xRequestUrl = REQUEST_URL_HEADER.toLocaleLowerCase();\n    return response.headers.get(xRequestUrl);\n}\n/**\n * Uses `fetch` to send requests to a backend server.\n *\n * This `FetchBackend` requires the support of the\n * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) which is available on all\n * supported browsers and on Node.js v18 or later.\n *\n * @see {@link HttpHandler}\n *\n * @publicApi\n * @developerPreview\n */\nclass FetchBackend {\n    constructor() {\n        // We need to bind the native fetch to its context or it will throw an \"illegal invocation\"\n        this.fetchImpl = inject(FetchFactory, { optional: true })?.fetch ?? fetch.bind(globalThis);\n        this.ngZone = inject(NgZone);\n    }\n    handle(request) {\n        return new Observable(observer => {\n            const aborter = new AbortController();\n            this.doRequest(request, aborter.signal, observer)\n                .then(noop, error => observer.error(new HttpErrorResponse({ error })));\n            return () => aborter.abort();\n        });\n    }\n    async doRequest(request, signal, observer) {\n        const init = this.createRequestInit(request);\n        let response;\n        try {\n            const fetchPromise = this.fetchImpl(request.urlWithParams, { signal, ...init });\n            // Make sure Zone.js doesn't trigger false-positive unhandled promise\n            // error in case the Promise is rejected synchronously. See function\n            // description for additional information.\n            silenceSuperfluousUnhandledPromiseRejection(fetchPromise);\n            // Send the `Sent` event before awaiting the response.\n            observer.next({ type: HttpEventType.Sent });\n            response = await fetchPromise;\n        }\n        catch (error) {\n            observer.error(new HttpErrorResponse({\n                error,\n                status: error.status ?? 0,\n                statusText: error.statusText,\n                url: request.urlWithParams,\n                headers: error.headers,\n            }));\n            return;\n        }\n        const headers = new HttpHeaders(response.headers);\n        const statusText = response.statusText;\n        const url = getResponseUrl$1(response) ?? request.urlWithParams;\n        let status = response.status;\n        let body = null;\n        if (request.reportProgress) {\n            observer.next(new HttpHeaderResponse({ headers, status, statusText, url }));\n        }\n        if (response.body) {\n            // Read Progress\n            const contentLength = response.headers.get('content-length');\n            const chunks = [];\n            const reader = response.body.getReader();\n            let receivedLength = 0;\n            let decoder;\n            let partialText;\n            // We have to check whether the Zone is defined in the global scope because this may be called\n            // when the zone is nooped.\n            const reqZone = typeof Zone !== 'undefined' && Zone.current;\n            // Perform response processing outside of Angular zone to\n            // ensure no excessive change detection runs are executed\n            // Here calling the async ReadableStreamDefaultReader.read() is responsible for triggering CD\n            await this.ngZone.runOutsideAngular(async () => {\n                while (true) {\n                    const { done, value } = await reader.read();\n                    if (done) {\n                        break;\n                    }\n                    chunks.push(value);\n                    receivedLength += value.length;\n                    if (request.reportProgress) {\n                        partialText = request.responseType === 'text' ?\n                            (partialText ?? '') + (decoder ??= new TextDecoder).decode(value, { stream: true }) :\n                            undefined;\n                        const reportProgress = () => observer.next({\n                            type: HttpEventType.DownloadProgress,\n                            total: contentLength ? +contentLength : undefined,\n                            loaded: receivedLength,\n                            partialText,\n                        });\n                        reqZone ? reqZone.run(reportProgress) : reportProgress();\n                    }\n                }\n            });\n            // Combine all chunks.\n            const chunksAll = this.concatChunks(chunks, receivedLength);\n            try {\n                body = this.parseBody(request, chunksAll);\n            }\n            catch (error) {\n                // Body loading or parsing failed\n                observer.error(new HttpErrorResponse({\n                    error,\n                    headers: new HttpHeaders(response.headers),\n                    status: response.status,\n                    statusText: response.statusText,\n                    url: getResponseUrl$1(response) ?? request.urlWithParams,\n                }));\n                return;\n            }\n        }\n        // Same behavior as the XhrBackend\n        if (status === 0) {\n            status = body ? 200 /* HttpStatusCode.Ok */ : 0;\n        }\n        // ok determines whether the response will be transmitted on the event or\n        // error channel. Unsuccessful status codes (not 2xx) will always be errors,\n        // but a successful status code can still result in an error if the user\n        // asked for JSON data and the body cannot be parsed as such.\n        const ok = status >= 200 && status < 300;\n        if (ok) {\n            observer.next(new HttpResponse({\n                body,\n                headers,\n                status,\n                statusText,\n                url,\n            }));\n            // The full body has been received and delivered, no further events\n            // are possible. This request is complete.\n            observer.complete();\n        }\n        else {\n            observer.error(new HttpErrorResponse({\n                error: body,\n                headers,\n                status,\n                statusText,\n                url,\n            }));\n        }\n    }\n    parseBody(request, binContent) {\n        switch (request.responseType) {\n            case 'json':\n                // stripping the XSSI when present\n                const text = new TextDecoder().decode(binContent).replace(XSSI_PREFIX$1, '');\n                return text === '' ? null : JSON.parse(text);\n            case 'text':\n                return new TextDecoder().decode(binContent);\n            case 'blob':\n                return new Blob([binContent]);\n            case 'arraybuffer':\n                return binContent.buffer;\n        }\n    }\n    createRequestInit(req) {\n        // We could share some of this logic with the XhrBackend\n        const headers = {};\n        const credentials = req.withCredentials ? 'include' : undefined;\n        // Setting all the requested headers.\n        req.headers.forEach((name, values) => (headers[name] = values.join(',')));\n        // Add an Accept header if one isn't present already.\n        headers['Accept'] ??= 'application/json, text/plain, */*';\n        // Auto-detect the Content-Type header if one isn't present already.\n        if (!headers['Content-Type']) {\n            const detectedType = req.detectContentTypeHeader();\n            // Sometimes Content-Type detection fails.\n            if (detectedType !== null) {\n                headers['Content-Type'] = detectedType;\n            }\n        }\n        return {\n            body: req.serializeBody(),\n            method: req.method,\n            headers,\n            credentials,\n        };\n    }\n    concatChunks(chunks, totalLength) {\n        const chunksAll = new Uint8Array(totalLength);\n        let position = 0;\n        for (const chunk of chunks) {\n            chunksAll.set(chunk, position);\n            position += chunk.length;\n        }\n        return chunksAll;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FetchBackend, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FetchBackend }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: FetchBackend, decorators: [{\n            type: Injectable\n        }] });\n/**\n * Abstract class to provide a mocked implementation of `fetch()`\n */\nclass FetchFactory {\n}\nfunction noop() { }\n/**\n * Zone.js treats a rejected promise that has not yet been awaited\n * as an unhandled error. This function adds a noop `.then` to make\n * sure that Zone.js doesn't throw an error if the Promise is rejected\n * synchronously.\n */\nfunction silenceSuperfluousUnhandledPromiseRejection(promise) {\n    promise.then(noop, noop);\n}\n\nfunction interceptorChainEndFn(req, finalHandlerFn) {\n    return finalHandlerFn(req);\n}\n/**\n * Constructs a `ChainedInterceptorFn` which adapts a legacy `HttpInterceptor` to the\n * `ChainedInterceptorFn` interface.\n */\nfunction adaptLegacyInterceptorToChain(chainTailFn, interceptor) {\n    return (initialRequest, finalHandlerFn) => interceptor.intercept(initialRequest, {\n        handle: (downstreamRequest) => chainTailFn(downstreamRequest, finalHandlerFn),\n    });\n}\n/**\n * Constructs a `ChainedInterceptorFn` which wraps and invokes a functional interceptor in the given\n * injector.\n */\nfunction chainedInterceptorFn(chainTailFn, interceptorFn, injector) {\n    // clang-format off\n    return (initialRequest, finalHandlerFn) => injector.runInContext(() => interceptorFn(initialRequest, downstreamRequest => chainTailFn(downstreamRequest, finalHandlerFn)));\n    // clang-format on\n}\n/**\n * A multi-provider token that represents the array of registered\n * `HttpInterceptor` objects.\n *\n * @publicApi\n */\nconst HTTP_INTERCEPTORS = new InjectionToken(ngDevMode ? 'HTTP_INTERCEPTORS' : '');\n/**\n * A multi-provided token of `HttpInterceptorFn`s.\n */\nconst HTTP_INTERCEPTOR_FNS = new InjectionToken(ngDevMode ? 'HTTP_INTERCEPTOR_FNS' : '');\n/**\n * A multi-provided token of `HttpInterceptorFn`s that are only set in root.\n */\nconst HTTP_ROOT_INTERCEPTOR_FNS = new InjectionToken(ngDevMode ? 'HTTP_ROOT_INTERCEPTOR_FNS' : '');\n/**\n * Creates an `HttpInterceptorFn` which lazily initializes an interceptor chain from the legacy\n * class-based interceptors and runs the request through it.\n */\nfunction legacyInterceptorFnFactory() {\n    let chain = null;\n    return (req, handler) => {\n        if (chain === null) {\n            const interceptors = inject(HTTP_INTERCEPTORS, { optional: true }) ?? [];\n            // Note: interceptors are wrapped right-to-left so that final execution order is\n            // left-to-right. That is, if `interceptors` is the array `[a, b, c]`, we want to\n            // produce a chain that is conceptually `c(b(a(end)))`, which we build from the inside\n            // out.\n            chain = interceptors.reduceRight(adaptLegacyInterceptorToChain, interceptorChainEndFn);\n        }\n        const pendingTasks = inject(ɵInitialRenderPendingTasks);\n        const taskId = pendingTasks.add();\n        return chain(req, handler).pipe(finalize(() => pendingTasks.remove(taskId)));\n    };\n}\nclass HttpInterceptorHandler extends HttpHandler {\n    constructor(backend, injector) {\n        super();\n        this.backend = backend;\n        this.injector = injector;\n        this.chain = null;\n        this.pendingTasks = inject(ɵInitialRenderPendingTasks);\n    }\n    handle(initialRequest) {\n        if (this.chain === null) {\n            const dedupedInterceptorFns = Array.from(new Set([\n                ...this.injector.get(HTTP_INTERCEPTOR_FNS),\n                ...this.injector.get(HTTP_ROOT_INTERCEPTOR_FNS, []),\n            ]));\n            // Note: interceptors are wrapped right-to-left so that final execution order is\n            // left-to-right. That is, if `dedupedInterceptorFns` is the array `[a, b, c]`, we want to\n            // produce a chain that is conceptually `c(b(a(end)))`, which we build from the inside\n            // out.\n            this.chain = dedupedInterceptorFns.reduceRight((nextSequencedFn, interceptorFn) => chainedInterceptorFn(nextSequencedFn, interceptorFn, this.injector), interceptorChainEndFn);\n        }\n        const taskId = this.pendingTasks.add();\n        return this.chain(initialRequest, downstreamRequest => this.backend.handle(downstreamRequest))\n            .pipe(finalize(() => this.pendingTasks.remove(taskId)));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpInterceptorHandler, deps: [{ token: HttpBackend }, { token: i0.EnvironmentInjector }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpInterceptorHandler }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpInterceptorHandler, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: HttpBackend }, { type: i0.EnvironmentInjector }]; } });\n\n// Every request made through JSONP needs a callback name that's unique across the\n// whole page. Each request is assigned an id and the callback name is constructed\n// from that. The next id to be assigned is tracked in a global variable here that\n// is shared among all applications on the page.\nlet nextRequestId = 0;\n/**\n * When a pending <script> is unsubscribed we'll move it to this document, so it won't be\n * executed.\n */\nlet foreignDocument;\n// Error text given when a JSONP script is injected, but doesn't invoke the callback\n// passed in its URL.\nconst JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.';\n// Error text given when a request is passed to the JsonpClientBackend that doesn't\n// have a request method JSONP.\nconst JSONP_ERR_WRONG_METHOD = 'JSONP requests must use JSONP request method.';\nconst JSONP_ERR_WRONG_RESPONSE_TYPE = 'JSONP requests must use Json response type.';\n// Error text given when a request is passed to the JsonpClientBackend that has\n// headers set\nconst JSONP_ERR_HEADERS_NOT_SUPPORTED = 'JSONP requests do not support headers.';\n/**\n * DI token/abstract type representing a map of JSONP callbacks.\n *\n * In the browser, this should always be the `window` object.\n *\n *\n */\nclass JsonpCallbackContext {\n}\n/**\n * Factory function that determines where to store JSONP callbacks.\n *\n * Ordinarily JSONP callbacks are stored on the `window` object, but this may not exist\n * in test environments. In that case, callbacks are stored on an anonymous object instead.\n *\n *\n */\nfunction jsonpCallbackContext() {\n    if (typeof window === 'object') {\n        return window;\n    }\n    return {};\n}\n/**\n * Processes an `HttpRequest` with the JSONP method,\n * by performing JSONP style requests.\n * @see {@link HttpHandler}\n * @see {@link HttpXhrBackend}\n *\n * @publicApi\n */\nclass JsonpClientBackend {\n    constructor(callbackMap, document) {\n        this.callbackMap = callbackMap;\n        this.document = document;\n        /**\n         * A resolved promise that can be used to schedule microtasks in the event handlers.\n         */\n        this.resolvedPromise = Promise.resolve();\n    }\n    /**\n     * Get the name of the next callback method, by incrementing the global `nextRequestId`.\n     */\n    nextCallback() {\n        return `ng_jsonp_callback_${nextRequestId++}`;\n    }\n    /**\n     * Processes a JSONP request and returns an event stream of the results.\n     * @param req The request object.\n     * @returns An observable of the response events.\n     *\n     */\n    handle(req) {\n        // Firstly, check both the method and response type. If either doesn't match\n        // then the request was improperly routed here and cannot be handled.\n        if (req.method !== 'JSONP') {\n            throw new Error(JSONP_ERR_WRONG_METHOD);\n        }\n        else if (req.responseType !== 'json') {\n            throw new Error(JSONP_ERR_WRONG_RESPONSE_TYPE);\n        }\n        // Check the request headers. JSONP doesn't support headers and\n        // cannot set any that were supplied.\n        if (req.headers.keys().length > 0) {\n            throw new Error(JSONP_ERR_HEADERS_NOT_SUPPORTED);\n        }\n        // Everything else happens inside the Observable boundary.\n        return new Observable((observer) => {\n            // The first step to make a request is to generate the callback name, and replace the\n            // callback placeholder in the URL with the name. Care has to be taken here to ensure\n            // a trailing &, if matched, gets inserted back into the URL in the correct place.\n            const callback = this.nextCallback();\n            const url = req.urlWithParams.replace(/=JSONP_CALLBACK(&|$)/, `=${callback}$1`);\n            // Construct the <script> tag and point it at the URL.\n            const node = this.document.createElement('script');\n            node.src = url;\n            // A JSONP request requires waiting for multiple callbacks. These variables\n            // are closed over and track state across those callbacks.\n            // The response object, if one has been received, or null otherwise.\n            let body = null;\n            // Whether the response callback has been called.\n            let finished = false;\n            // Set the response callback in this.callbackMap (which will be the window\n            // object in the browser. The script being loaded via the <script> tag will\n            // eventually call this callback.\n            this.callbackMap[callback] = (data) => {\n                // Data has been received from the JSONP script. Firstly, delete this callback.\n                delete this.callbackMap[callback];\n                // Set state to indicate data was received.\n                body = data;\n                finished = true;\n            };\n            // cleanup() is a utility closure that removes the <script> from the page and\n            // the response callback from the window. This logic is used in both the\n            // success, error, and cancellation paths, so it's extracted out for convenience.\n            const cleanup = () => {\n                // Remove the <script> tag if it's still on the page.\n                if (node.parentNode) {\n                    node.parentNode.removeChild(node);\n                }\n                // Remove the response callback from the callbackMap (window object in the\n                // browser).\n                delete this.callbackMap[callback];\n            };\n            // onLoad() is the success callback which runs after the response callback\n            // if the JSONP script loads successfully. The event itself is unimportant.\n            // If something went wrong, onLoad() may run without the response callback\n            // having been invoked.\n            const onLoad = (event) => {\n                // We wrap it in an extra Promise, to ensure the microtask\n                // is scheduled after the loaded endpoint has executed any potential microtask itself,\n                // which is not guaranteed in Internet Explorer and EdgeHTML. See issue #39496\n                this.resolvedPromise.then(() => {\n                    // Cleanup the page.\n                    cleanup();\n                    // Check whether the response callback has run.\n                    if (!finished) {\n                        // It hasn't, something went wrong with the request. Return an error via\n                        // the Observable error path. All JSONP errors have status 0.\n                        observer.error(new HttpErrorResponse({\n                            url,\n                            status: 0,\n                            statusText: 'JSONP Error',\n                            error: new Error(JSONP_ERR_NO_CALLBACK),\n                        }));\n                        return;\n                    }\n                    // Success. body either contains the response body or null if none was\n                    // returned.\n                    observer.next(new HttpResponse({\n                        body,\n                        status: 200 /* HttpStatusCode.Ok */,\n                        statusText: 'OK',\n                        url,\n                    }));\n                    // Complete the stream, the response is over.\n                    observer.complete();\n                });\n            };\n            // onError() is the error callback, which runs if the script returned generates\n            // a Javascript error. It emits the error via the Observable error channel as\n            // a HttpErrorResponse.\n            const onError = (error) => {\n                cleanup();\n                // Wrap the error in a HttpErrorResponse.\n                observer.error(new HttpErrorResponse({\n                    error,\n                    status: 0,\n                    statusText: 'JSONP Error',\n                    url,\n                }));\n            };\n            // Subscribe to both the success (load) and error events on the <script> tag,\n            // and add it to the page.\n            node.addEventListener('load', onLoad);\n            node.addEventListener('error', onError);\n            this.document.body.appendChild(node);\n            // The request has now been successfully sent.\n            observer.next({ type: HttpEventType.Sent });\n            // Cancellation handler.\n            return () => {\n                if (!finished) {\n                    this.removeListeners(node);\n                }\n                // And finally, clean up the page.\n                cleanup();\n            };\n        });\n    }\n    removeListeners(script) {\n        // Issue #34818\n        // Changing <script>'s ownerDocument will prevent it from execution.\n        // https://html.spec.whatwg.org/multipage/scripting.html#execute-the-script-block\n        if (!foreignDocument) {\n            foreignDocument = this.document.implementation.createHTMLDocument();\n        }\n        foreignDocument.adoptNode(script);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonpClientBackend, deps: [{ token: JsonpCallbackContext }, { token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonpClientBackend }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonpClientBackend, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: JsonpCallbackContext }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }]; } });\n/**\n * Identifies requests with the method JSONP and shifts them to the `JsonpClientBackend`.\n */\nfunction jsonpInterceptorFn(req, next) {\n    if (req.method === 'JSONP') {\n        return inject(JsonpClientBackend).handle(req);\n    }\n    // Fall through for normal HTTP requests.\n    return next(req);\n}\n/**\n * Identifies requests with the method JSONP and\n * shifts them to the `JsonpClientBackend`.\n *\n * @see {@link HttpInterceptor}\n *\n * @publicApi\n */\nclass JsonpInterceptor {\n    constructor(injector) {\n        this.injector = injector;\n    }\n    /**\n     * Identifies and handles a given JSONP request.\n     * @param initialRequest The outgoing request object to handle.\n     * @param next The next interceptor in the chain, or the backend\n     * if no interceptors remain in the chain.\n     * @returns An observable of the event stream.\n     */\n    intercept(initialRequest, next) {\n        return this.injector.runInContext(() => jsonpInterceptorFn(initialRequest, downstreamRequest => next.handle(downstreamRequest)));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonpInterceptor, deps: [{ token: i0.EnvironmentInjector }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonpInterceptor }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: JsonpInterceptor, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: i0.EnvironmentInjector }]; } });\n\nconst XSSI_PREFIX = /^\\)\\]\\}',?\\n/;\n/**\n * Determine an appropriate URL for the response, by checking either\n * XMLHttpRequest.responseURL or the X-Request-URL header.\n */\nfunction getResponseUrl(xhr) {\n    if ('responseURL' in xhr && xhr.responseURL) {\n        return xhr.responseURL;\n    }\n    if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {\n        return xhr.getResponseHeader('X-Request-URL');\n    }\n    return null;\n}\n/**\n * Uses `XMLHttpRequest` to send requests to a backend server.\n * @see {@link HttpHandler}\n * @see {@link JsonpClientBackend}\n *\n * @publicApi\n */\nclass HttpXhrBackend {\n    constructor(xhrFactory) {\n        this.xhrFactory = xhrFactory;\n    }\n    /**\n     * Processes a request and returns a stream of response events.\n     * @param req The request object.\n     * @returns An observable of the response events.\n     */\n    handle(req) {\n        // Quick check to give a better error message when a user attempts to use\n        // HttpClient.jsonp() without installing the HttpClientJsonpModule\n        if (req.method === 'JSONP') {\n            throw new ɵRuntimeError(-2800 /* RuntimeErrorCode.MISSING_JSONP_MODULE */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                `Cannot make a JSONP request without JSONP support. To fix the problem, either add the \\`withJsonpSupport()\\` call (if \\`provideHttpClient()\\` is used) or import the \\`HttpClientJsonpModule\\` in the root NgModule.`);\n        }\n        // Check whether this factory has a special function to load an XHR implementation\n        // for various non-browser environments. We currently limit it to only `ServerXhr`\n        // class, which needs to load an XHR implementation.\n        const xhrFactory = this.xhrFactory;\n        const source = xhrFactory.ɵloadImpl ? from(xhrFactory.ɵloadImpl()) : of(null);\n        return source.pipe(switchMap(() => {\n            // Everything happens on Observable subscription.\n            return new Observable((observer) => {\n                // Start by setting up the XHR object with request method, URL, and withCredentials\n                // flag.\n                const xhr = xhrFactory.build();\n                xhr.open(req.method, req.urlWithParams);\n                if (req.withCredentials) {\n                    xhr.withCredentials = true;\n                }\n                // Add all the requested headers.\n                req.headers.forEach((name, values) => xhr.setRequestHeader(name, values.join(',')));\n                // Add an Accept header if one isn't present already.\n                if (!req.headers.has('Accept')) {\n                    xhr.setRequestHeader('Accept', 'application/json, text/plain, */*');\n                }\n                // Auto-detect the Content-Type header if one isn't present already.\n                if (!req.headers.has('Content-Type')) {\n                    const detectedType = req.detectContentTypeHeader();\n                    // Sometimes Content-Type detection fails.\n                    if (detectedType !== null) {\n                        xhr.setRequestHeader('Content-Type', detectedType);\n                    }\n                }\n                // Set the responseType if one was requested.\n                if (req.responseType) {\n                    const responseType = req.responseType.toLowerCase();\n                    // JSON responses need to be processed as text. This is because if the server\n                    // returns an XSSI-prefixed JSON response, the browser will fail to parse it,\n                    // xhr.response will be null, and xhr.responseText cannot be accessed to\n                    // retrieve the prefixed JSON data in order to strip the prefix. Thus, all JSON\n                    // is parsed by first requesting text and then applying JSON.parse.\n                    xhr.responseType = ((responseType !== 'json') ? responseType : 'text');\n                }\n                // Serialize the request body if one is present. If not, this will be set to null.\n                const reqBody = req.serializeBody();\n                // If progress events are enabled, response headers will be delivered\n                // in two events - the HttpHeaderResponse event and the full HttpResponse\n                // event. However, since response headers don't change in between these\n                // two events, it doesn't make sense to parse them twice. So headerResponse\n                // caches the data extracted from the response whenever it's first parsed,\n                // to ensure parsing isn't duplicated.\n                let headerResponse = null;\n                // partialFromXhr extracts the HttpHeaderResponse from the current XMLHttpRequest\n                // state, and memoizes it into headerResponse.\n                const partialFromXhr = () => {\n                    if (headerResponse !== null) {\n                        return headerResponse;\n                    }\n                    const statusText = xhr.statusText || 'OK';\n                    // Parse headers from XMLHttpRequest - this step is lazy.\n                    const headers = new HttpHeaders(xhr.getAllResponseHeaders());\n                    // Read the response URL from the XMLHttpResponse instance and fall back on the\n                    // request URL.\n                    const url = getResponseUrl(xhr) || req.url;\n                    // Construct the HttpHeaderResponse and memoize it.\n                    headerResponse =\n                        new HttpHeaderResponse({ headers, status: xhr.status, statusText, url });\n                    return headerResponse;\n                };\n                // Next, a few closures are defined for the various events which XMLHttpRequest can\n                // emit. This allows them to be unregistered as event listeners later.\n                // First up is the load event, which represents a response being fully available.\n                const onLoad = () => {\n                    // Read response state from the memoized partial data.\n                    let { headers, status, statusText, url } = partialFromXhr();\n                    // The body will be read out if present.\n                    let body = null;\n                    if (status !== 204 /* HttpStatusCode.NoContent */) {\n                        // Use XMLHttpRequest.response if set, responseText otherwise.\n                        body = (typeof xhr.response === 'undefined') ? xhr.responseText : xhr.response;\n                    }\n                    // Normalize another potential bug (this one comes from CORS).\n                    if (status === 0) {\n                        status = !!body ? 200 /* HttpStatusCode.Ok */ : 0;\n                    }\n                    // ok determines whether the response will be transmitted on the event or\n                    // error channel. Unsuccessful status codes (not 2xx) will always be errors,\n                    // but a successful status code can still result in an error if the user\n                    // asked for JSON data and the body cannot be parsed as such.\n                    let ok = status >= 200 && status < 300;\n                    // Check whether the body needs to be parsed as JSON (in many cases the browser\n                    // will have done that already).\n                    if (req.responseType === 'json' && typeof body === 'string') {\n                        // Save the original body, before attempting XSSI prefix stripping.\n                        const originalBody = body;\n                        body = body.replace(XSSI_PREFIX, '');\n                        try {\n                            // Attempt the parse. If it fails, a parse error should be delivered to the\n                            // user.\n                            body = body !== '' ? JSON.parse(body) : null;\n                        }\n                        catch (error) {\n                            // Since the JSON.parse failed, it's reasonable to assume this might not have\n                            // been a JSON response. Restore the original body (including any XSSI prefix)\n                            // to deliver a better error response.\n                            body = originalBody;\n                            // If this was an error request to begin with, leave it as a string, it\n                            // probably just isn't JSON. Otherwise, deliver the parsing error to the user.\n                            if (ok) {\n                                // Even though the response status was 2xx, this is still an error.\n                                ok = false;\n                                // The parse error contains the text of the body that failed to parse.\n                                body = { error, text: body };\n                            }\n                        }\n                    }\n                    if (ok) {\n                        // A successful response is delivered on the event stream.\n                        observer.next(new HttpResponse({\n                            body,\n                            headers,\n                            status,\n                            statusText,\n                            url: url || undefined,\n                        }));\n                        // The full body has been received and delivered, no further events\n                        // are possible. This request is complete.\n                        observer.complete();\n                    }\n                    else {\n                        // An unsuccessful request is delivered on the error channel.\n                        observer.error(new HttpErrorResponse({\n                            // The error in this case is the response body (error from the server).\n                            error: body,\n                            headers,\n                            status,\n                            statusText,\n                            url: url || undefined,\n                        }));\n                    }\n                };\n                // The onError callback is called when something goes wrong at the network level.\n                // Connection timeout, DNS error, offline, etc. These are actual errors, and are\n                // transmitted on the error channel.\n                const onError = (error) => {\n                    const { url } = partialFromXhr();\n                    const res = new HttpErrorResponse({\n                        error,\n                        status: xhr.status || 0,\n                        statusText: xhr.statusText || 'Unknown Error',\n                        url: url || undefined,\n                    });\n                    observer.error(res);\n                };\n                // The sentHeaders flag tracks whether the HttpResponseHeaders event\n                // has been sent on the stream. This is necessary to track if progress\n                // is enabled since the event will be sent on only the first download\n                // progress event.\n                let sentHeaders = false;\n                // The download progress event handler, which is only registered if\n                // progress events are enabled.\n                const onDownProgress = (event) => {\n                    // Send the HttpResponseHeaders event if it hasn't been sent already.\n                    if (!sentHeaders) {\n                        observer.next(partialFromXhr());\n                        sentHeaders = true;\n                    }\n                    // Start building the download progress event to deliver on the response\n                    // event stream.\n                    let progressEvent = {\n                        type: HttpEventType.DownloadProgress,\n                        loaded: event.loaded,\n                    };\n                    // Set the total number of bytes in the event if it's available.\n                    if (event.lengthComputable) {\n                        progressEvent.total = event.total;\n                    }\n                    // If the request was for text content and a partial response is\n                    // available on XMLHttpRequest, include it in the progress event\n                    // to allow for streaming reads.\n                    if (req.responseType === 'text' && !!xhr.responseText) {\n                        progressEvent.partialText = xhr.responseText;\n                    }\n                    // Finally, fire the event.\n                    observer.next(progressEvent);\n                };\n                // The upload progress event handler, which is only registered if\n                // progress events are enabled.\n                const onUpProgress = (event) => {\n                    // Upload progress events are simpler. Begin building the progress\n                    // event.\n                    let progress = {\n                        type: HttpEventType.UploadProgress,\n                        loaded: event.loaded,\n                    };\n                    // If the total number of bytes being uploaded is available, include\n                    // it.\n                    if (event.lengthComputable) {\n                        progress.total = event.total;\n                    }\n                    // Send the event.\n                    observer.next(progress);\n                };\n                // By default, register for load and error events.\n                xhr.addEventListener('load', onLoad);\n                xhr.addEventListener('error', onError);\n                xhr.addEventListener('timeout', onError);\n                xhr.addEventListener('abort', onError);\n                // Progress events are only enabled if requested.\n                if (req.reportProgress) {\n                    // Download progress is always enabled if requested.\n                    xhr.addEventListener('progress', onDownProgress);\n                    // Upload progress depends on whether there is a body to upload.\n                    if (reqBody !== null && xhr.upload) {\n                        xhr.upload.addEventListener('progress', onUpProgress);\n                    }\n                }\n                // Fire the request, and notify the event stream that it was fired.\n                xhr.send(reqBody);\n                observer.next({ type: HttpEventType.Sent });\n                // This is the return from the Observable function, which is the\n                // request cancellation handler.\n                return () => {\n                    // On a cancellation, remove all registered event listeners.\n                    xhr.removeEventListener('error', onError);\n                    xhr.removeEventListener('abort', onError);\n                    xhr.removeEventListener('load', onLoad);\n                    xhr.removeEventListener('timeout', onError);\n                    if (req.reportProgress) {\n                        xhr.removeEventListener('progress', onDownProgress);\n                        if (reqBody !== null && xhr.upload) {\n                            xhr.upload.removeEventListener('progress', onUpProgress);\n                        }\n                    }\n                    // Finally, abort the in-flight request.\n                    if (xhr.readyState !== xhr.DONE) {\n                        xhr.abort();\n                    }\n                };\n            });\n        }));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXhrBackend, deps: [{ token: i1.XhrFactory }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXhrBackend }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXhrBackend, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: i1.XhrFactory }]; } });\n\nconst XSRF_ENABLED = new InjectionToken('XSRF_ENABLED');\nconst XSRF_DEFAULT_COOKIE_NAME = 'XSRF-TOKEN';\nconst XSRF_COOKIE_NAME = new InjectionToken('XSRF_COOKIE_NAME', {\n    providedIn: 'root',\n    factory: () => XSRF_DEFAULT_COOKIE_NAME,\n});\nconst XSRF_DEFAULT_HEADER_NAME = 'X-XSRF-TOKEN';\nconst XSRF_HEADER_NAME = new InjectionToken('XSRF_HEADER_NAME', {\n    providedIn: 'root',\n    factory: () => XSRF_DEFAULT_HEADER_NAME,\n});\n/**\n * Retrieves the current XSRF token to use with the next outgoing request.\n *\n * @publicApi\n */\nclass HttpXsrfTokenExtractor {\n}\n/**\n * `HttpXsrfTokenExtractor` which retrieves the token from a cookie.\n */\nclass HttpXsrfCookieExtractor {\n    constructor(doc, platform, cookieName) {\n        this.doc = doc;\n        this.platform = platform;\n        this.cookieName = cookieName;\n        this.lastCookieString = '';\n        this.lastToken = null;\n        /**\n         * @internal for testing\n         */\n        this.parseCount = 0;\n    }\n    getToken() {\n        if (this.platform === 'server') {\n            return null;\n        }\n        const cookieString = this.doc.cookie || '';\n        if (cookieString !== this.lastCookieString) {\n            this.parseCount++;\n            this.lastToken = ɵparseCookieValue(cookieString, this.cookieName);\n            this.lastCookieString = cookieString;\n        }\n        return this.lastToken;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXsrfCookieExtractor, deps: [{ token: DOCUMENT }, { token: PLATFORM_ID }, { token: XSRF_COOKIE_NAME }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXsrfCookieExtractor }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXsrfCookieExtractor, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [PLATFORM_ID]\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [XSRF_COOKIE_NAME]\n                }] }]; } });\nfunction xsrfInterceptorFn(req, next) {\n    const lcUrl = req.url.toLowerCase();\n    // Skip both non-mutating requests and absolute URLs.\n    // Non-mutating requests don't require a token, and absolute URLs require special handling\n    // anyway as the cookie set\n    // on our origin is not the same as the token expected by another origin.\n    if (!inject(XSRF_ENABLED) || req.method === 'GET' || req.method === 'HEAD' ||\n        lcUrl.startsWith('http://') || lcUrl.startsWith('https://')) {\n        return next(req);\n    }\n    const token = inject(HttpXsrfTokenExtractor).getToken();\n    const headerName = inject(XSRF_HEADER_NAME);\n    // Be careful not to overwrite an existing header of the same name.\n    if (token != null && !req.headers.has(headerName)) {\n        req = req.clone({ headers: req.headers.set(headerName, token) });\n    }\n    return next(req);\n}\n/**\n * `HttpInterceptor` which adds an XSRF token to eligible outgoing requests.\n */\nclass HttpXsrfInterceptor {\n    constructor(injector) {\n        this.injector = injector;\n    }\n    intercept(initialRequest, next) {\n        return this.injector.runInContext(() => xsrfInterceptorFn(initialRequest, downstreamRequest => next.handle(downstreamRequest)));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXsrfInterceptor, deps: [{ token: i0.EnvironmentInjector }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXsrfInterceptor }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpXsrfInterceptor, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: i0.EnvironmentInjector }]; } });\n\n/**\n * Identifies a particular kind of `HttpFeature`.\n *\n * @publicApi\n */\nvar HttpFeatureKind;\n(function (HttpFeatureKind) {\n    HttpFeatureKind[HttpFeatureKind[\"Interceptors\"] = 0] = \"Interceptors\";\n    HttpFeatureKind[HttpFeatureKind[\"LegacyInterceptors\"] = 1] = \"LegacyInterceptors\";\n    HttpFeatureKind[HttpFeatureKind[\"CustomXsrfConfiguration\"] = 2] = \"CustomXsrfConfiguration\";\n    HttpFeatureKind[HttpFeatureKind[\"NoXsrfProtection\"] = 3] = \"NoXsrfProtection\";\n    HttpFeatureKind[HttpFeatureKind[\"JsonpSupport\"] = 4] = \"JsonpSupport\";\n    HttpFeatureKind[HttpFeatureKind[\"RequestsMadeViaParent\"] = 5] = \"RequestsMadeViaParent\";\n    HttpFeatureKind[HttpFeatureKind[\"Fetch\"] = 6] = \"Fetch\";\n})(HttpFeatureKind || (HttpFeatureKind = {}));\nfunction makeHttpFeature(kind, providers) {\n    return {\n        ɵkind: kind,\n        ɵproviders: providers,\n    };\n}\n/**\n * Configures Angular's `HttpClient` service to be available for injection.\n *\n * By default, `HttpClient` will be configured for injection with its default options for XSRF\n * protection of outgoing requests. Additional configuration options can be provided by passing\n * feature functions to `provideHttpClient`. For example, HTTP interceptors can be added using the\n * `withInterceptors(...)` feature.\n *\n * @see {@link withInterceptors}\n * @see {@link withInterceptorsFromDi}\n * @see {@link withXsrfConfiguration}\n * @see {@link withNoXsrfProtection}\n * @see {@link withJsonpSupport}\n * @see {@link withRequestsMadeViaParent}\n * @see {@link withFetch}\n */\nfunction provideHttpClient(...features) {\n    if (ngDevMode) {\n        const featureKinds = new Set(features.map(f => f.ɵkind));\n        if (featureKinds.has(HttpFeatureKind.NoXsrfProtection) &&\n            featureKinds.has(HttpFeatureKind.CustomXsrfConfiguration)) {\n            throw new Error(ngDevMode ?\n                `Configuration error: found both withXsrfConfiguration() and withNoXsrfProtection() in the same call to provideHttpClient(), which is a contradiction.` :\n                '');\n        }\n    }\n    const providers = [\n        HttpClient,\n        HttpXhrBackend,\n        HttpInterceptorHandler,\n        { provide: HttpHandler, useExisting: HttpInterceptorHandler },\n        { provide: HttpBackend, useExisting: HttpXhrBackend },\n        {\n            provide: HTTP_INTERCEPTOR_FNS,\n            useValue: xsrfInterceptorFn,\n            multi: true,\n        },\n        { provide: XSRF_ENABLED, useValue: true },\n        { provide: HttpXsrfTokenExtractor, useClass: HttpXsrfCookieExtractor },\n    ];\n    for (const feature of features) {\n        providers.push(...feature.ɵproviders);\n    }\n    return makeEnvironmentProviders(providers);\n}\n/**\n * Adds one or more functional-style HTTP interceptors to the configuration of the `HttpClient`\n * instance.\n *\n * @see {@link HttpInterceptorFn}\n * @see {@link provideHttpClient}\n * @publicApi\n */\nfunction withInterceptors(interceptorFns) {\n    return makeHttpFeature(HttpFeatureKind.Interceptors, interceptorFns.map(interceptorFn => {\n        return {\n            provide: HTTP_INTERCEPTOR_FNS,\n            useValue: interceptorFn,\n            multi: true,\n        };\n    }));\n}\nconst LEGACY_INTERCEPTOR_FN = new InjectionToken('LEGACY_INTERCEPTOR_FN');\n/**\n * Includes class-based interceptors configured using a multi-provider in the current injector into\n * the configured `HttpClient` instance.\n *\n * Prefer `withInterceptors` and functional interceptors instead, as support for DI-provided\n * interceptors may be phased out in a later release.\n *\n * @see {@link HttpInterceptor}\n * @see {@link HTTP_INTERCEPTORS}\n * @see {@link provideHttpClient}\n */\nfunction withInterceptorsFromDi() {\n    // Note: the legacy interceptor function is provided here via an intermediate token\n    // (`LEGACY_INTERCEPTOR_FN`), using a pattern which guarantees that if these providers are\n    // included multiple times, all of the multi-provider entries will have the same instance of the\n    // interceptor function. That way, the `HttpINterceptorHandler` will dedup them and legacy\n    // interceptors will not run multiple times.\n    return makeHttpFeature(HttpFeatureKind.LegacyInterceptors, [\n        {\n            provide: LEGACY_INTERCEPTOR_FN,\n            useFactory: legacyInterceptorFnFactory,\n        },\n        {\n            provide: HTTP_INTERCEPTOR_FNS,\n            useExisting: LEGACY_INTERCEPTOR_FN,\n            multi: true,\n        }\n    ]);\n}\n/**\n * Customizes the XSRF protection for the configuration of the current `HttpClient` instance.\n *\n * This feature is incompatible with the `withNoXsrfProtection` feature.\n *\n * @see {@link provideHttpClient}\n */\nfunction withXsrfConfiguration({ cookieName, headerName }) {\n    const providers = [];\n    if (cookieName !== undefined) {\n        providers.push({ provide: XSRF_COOKIE_NAME, useValue: cookieName });\n    }\n    if (headerName !== undefined) {\n        providers.push({ provide: XSRF_HEADER_NAME, useValue: headerName });\n    }\n    return makeHttpFeature(HttpFeatureKind.CustomXsrfConfiguration, providers);\n}\n/**\n * Disables XSRF protection in the configuration of the current `HttpClient` instance.\n *\n * This feature is incompatible with the `withXsrfConfiguration` feature.\n *\n * @see {@link provideHttpClient}\n */\nfunction withNoXsrfProtection() {\n    return makeHttpFeature(HttpFeatureKind.NoXsrfProtection, [\n        {\n            provide: XSRF_ENABLED,\n            useValue: false,\n        },\n    ]);\n}\n/**\n * Add JSONP support to the configuration of the current `HttpClient` instance.\n *\n * @see {@link provideHttpClient}\n */\nfunction withJsonpSupport() {\n    return makeHttpFeature(HttpFeatureKind.JsonpSupport, [\n        JsonpClientBackend,\n        { provide: JsonpCallbackContext, useFactory: jsonpCallbackContext },\n        { provide: HTTP_INTERCEPTOR_FNS, useValue: jsonpInterceptorFn, multi: true },\n    ]);\n}\n/**\n * Configures the current `HttpClient` instance to make requests via the parent injector's\n * `HttpClient` instead of directly.\n *\n * By default, `provideHttpClient` configures `HttpClient` in its injector to be an independent\n * instance. For example, even if `HttpClient` is configured in the parent injector with\n * one or more interceptors, they will not intercept requests made via this instance.\n *\n * With this option enabled, once the request has passed through the current injector's\n * interceptors, it will be delegated to the parent injector's `HttpClient` chain instead of\n * dispatched directly, and interceptors in the parent configuration will be applied to the request.\n *\n * If there are several `HttpClient` instances in the injector hierarchy, it's possible for\n * `withRequestsMadeViaParent` to be used at multiple levels, which will cause the request to\n * \"bubble up\" until either reaching the root level or an `HttpClient` which was not configured with\n * this option.\n *\n * @see {@link provideHttpClient}\n * @developerPreview\n */\nfunction withRequestsMadeViaParent() {\n    return makeHttpFeature(HttpFeatureKind.RequestsMadeViaParent, [\n        {\n            provide: HttpBackend,\n            useFactory: () => {\n                const handlerFromParent = inject(HttpHandler, { skipSelf: true, optional: true });\n                if (ngDevMode && handlerFromParent === null) {\n                    throw new Error('withRequestsMadeViaParent() can only be used when the parent injector also configures HttpClient');\n                }\n                return handlerFromParent;\n            },\n        },\n    ]);\n}\n/**\n * Configures the current `HttpClient` instance to make requests using the fetch API.\n *\n * This `FetchBackend` requires the support of the Fetch API which is available on all evergreen\n * browsers and on NodeJS from v18 onward.\n *\n * Note: The Fetch API doesn't support progress report on uploads.\n *\n * @publicApi\n * @developerPreview\n */\nfunction withFetch() {\n    if ((typeof ngDevMode === 'undefined' || ngDevMode) && typeof fetch !== 'function') {\n        // TODO: Create a runtime error\n        // TODO: Use ENVIRONMENT_INITIALIZER to contextualize the error message (browser or server)\n        throw new Error('The `withFetch` feature of HttpClient requires the `fetch` API to be available. ' +\n            'If you run the code in a Node environment, make sure you use Node v18.10 or later.');\n    }\n    return makeHttpFeature(HttpFeatureKind.Fetch, [\n        FetchBackend,\n        { provide: HttpBackend, useExisting: FetchBackend },\n    ]);\n}\n\n/**\n * Configures XSRF protection support for outgoing requests.\n *\n * For a server that supports a cookie-based XSRF protection system,\n * use directly to configure XSRF protection with the correct\n * cookie and header names.\n *\n * If no names are supplied, the default cookie name is `XSRF-TOKEN`\n * and the default header name is `X-XSRF-TOKEN`.\n *\n * @publicApi\n */\nclass HttpClientXsrfModule {\n    /**\n     * Disable the default XSRF protection.\n     */\n    static disable() {\n        return {\n            ngModule: HttpClientXsrfModule,\n            providers: [\n                withNoXsrfProtection().ɵproviders,\n            ],\n        };\n    }\n    /**\n     * Configure XSRF protection.\n     * @param options An object that can specify either or both\n     * cookie name or header name.\n     * - Cookie name default is `XSRF-TOKEN`.\n     * - Header name default is `X-XSRF-TOKEN`.\n     *\n     */\n    static withOptions(options = {}) {\n        return {\n            ngModule: HttpClientXsrfModule,\n            providers: withXsrfConfiguration(options).ɵproviders,\n        };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientXsrfModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientXsrfModule }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientXsrfModule, providers: [\n            HttpXsrfInterceptor,\n            { provide: HTTP_INTERCEPTORS, useExisting: HttpXsrfInterceptor, multi: true },\n            { provide: HttpXsrfTokenExtractor, useClass: HttpXsrfCookieExtractor },\n            withXsrfConfiguration({\n                cookieName: XSRF_DEFAULT_COOKIE_NAME,\n                headerName: XSRF_DEFAULT_HEADER_NAME,\n            }).ɵproviders,\n            { provide: XSRF_ENABLED, useValue: true },\n        ] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientXsrfModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    providers: [\n                        HttpXsrfInterceptor,\n                        { provide: HTTP_INTERCEPTORS, useExisting: HttpXsrfInterceptor, multi: true },\n                        { provide: HttpXsrfTokenExtractor, useClass: HttpXsrfCookieExtractor },\n                        withXsrfConfiguration({\n                            cookieName: XSRF_DEFAULT_COOKIE_NAME,\n                            headerName: XSRF_DEFAULT_HEADER_NAME,\n                        }).ɵproviders,\n                        { provide: XSRF_ENABLED, useValue: true },\n                    ],\n                }]\n        }] });\n/**\n * Configures the [dependency injector](guide/glossary#injector) for `HttpClient`\n * with supporting services for XSRF. Automatically imported by `HttpClientModule`.\n *\n * You can add interceptors to the chain behind `HttpClient` by binding them to the\n * multiprovider for built-in [DI token](guide/glossary#di-token) `HTTP_INTERCEPTORS`.\n *\n * @publicApi\n */\nclass HttpClientModule {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientModule }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientModule, providers: [\n            provideHttpClient(withInterceptorsFromDi()),\n        ] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    /**\n                     * Configures the [dependency injector](guide/glossary#injector) where it is imported\n                     * with supporting services for HTTP communications.\n                     */\n                    providers: [\n                        provideHttpClient(withInterceptorsFromDi()),\n                    ],\n                }]\n        }] });\n/**\n * Configures the [dependency injector](guide/glossary#injector) for `HttpClient`\n * with supporting services for JSONP.\n * Without this module, Jsonp requests reach the backend\n * with method JSONP, where they are rejected.\n *\n * @publicApi\n */\nclass HttpClientJsonpModule {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientJsonpModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientJsonpModule }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientJsonpModule, providers: [\n            withJsonpSupport().ɵproviders,\n        ] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HttpClientJsonpModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    providers: [\n                        withJsonpSupport().ɵproviders,\n                    ],\n                }]\n        }] });\n\nconst CACHE_STATE = new InjectionToken(ngDevMode ? 'HTTP_TRANSFER_STATE_CACHE_STATE' : '');\n/**\n * A list of allowed HTTP methods to cache.\n */\nconst ALLOWED_METHODS = ['GET', 'HEAD'];\nfunction transferCacheInterceptorFn(req, next) {\n    const { isCacheActive } = inject(CACHE_STATE);\n    // Stop using the cache if the application has stabilized, indicating initial rendering\n    // is complete.\n    if (!isCacheActive || !ALLOWED_METHODS.includes(req.method)) {\n        // Cache is no longer active or method is not HEAD or GET.\n        // Pass the request through.\n        return next(req);\n    }\n    const transferState = inject(TransferState);\n    const storeKey = makeCacheKey(req);\n    const response = transferState.get(storeKey, null);\n    if (response) {\n        // Request found in cache. Respond using it.\n        let body = response.body;\n        switch (response.responseType) {\n            case 'arraybuffer':\n                body = new TextEncoder().encode(response.body).buffer;\n                break;\n            case 'blob':\n                body = new Blob([response.body]);\n                break;\n        }\n        return of(new HttpResponse({\n            body,\n            headers: new HttpHeaders(response.headers),\n            status: response.status,\n            statusText: response.statusText,\n            url: response.url,\n        }));\n    }\n    // Request not found in cache. Make the request and cache it.\n    return next(req).pipe(tap((event) => {\n        if (event instanceof HttpResponse) {\n            transferState.set(storeKey, {\n                body: event.body,\n                headers: getHeadersMap(event.headers),\n                status: event.status,\n                statusText: event.statusText,\n                url: event.url || '',\n                responseType: req.responseType,\n            });\n        }\n    }));\n}\nfunction getHeadersMap(headers) {\n    const headersMap = {};\n    for (const key of headers.keys()) {\n        const values = headers.getAll(key);\n        if (values !== null) {\n            headersMap[key] = values;\n        }\n    }\n    return headersMap;\n}\nfunction makeCacheKey(request) {\n    // make the params encoded same as a url so it's easy to identify\n    const { params, method, responseType, url } = request;\n    const encodedParams = params.keys().sort().map((k) => `${k}=${params.getAll(k)}`).join('&');\n    const key = method + '.' + responseType + '.' + url + '?' + encodedParams;\n    const hash = generateHash(key);\n    return makeStateKey(hash);\n}\n/**\n * A method that returns a hash representation of a string using a variant of DJB2 hash\n * algorithm.\n *\n * This is the same hashing logic that is used to generate component ids.\n */\nfunction generateHash(value) {\n    let hash = 0;\n    for (const char of value) {\n        hash = Math.imul(31, hash) + char.charCodeAt(0) << 0;\n    }\n    // Force positive number hash.\n    // 2147483647 = equivalent of Integer.MAX_VALUE.\n    hash += 2147483647 + 1;\n    return hash.toString();\n}\n/**\n * Returns the DI providers needed to enable HTTP transfer cache.\n *\n * By default, when using server rendering, requests are performed twice: once on the server and\n * other one on the browser.\n *\n * When these providers are added, requests performed on the server are cached and reused during the\n * bootstrapping of the application in the browser thus avoiding duplicate requests and reducing\n * load time.\n *\n */\nfunction withHttpTransferCache() {\n    return [\n        {\n            provide: CACHE_STATE,\n            useFactory: () => {\n                inject(ɵENABLED_SSR_FEATURES).add('httpcache');\n                return { isCacheActive: true };\n            }\n        },\n        {\n            provide: HTTP_ROOT_INTERCEPTOR_FNS,\n            useValue: transferCacheInterceptorFn,\n            multi: true,\n            deps: [TransferState, CACHE_STATE]\n        },\n        {\n            provide: APP_BOOTSTRAP_LISTENER,\n            multi: true,\n            useFactory: () => {\n                const appRef = inject(ApplicationRef);\n                const cacheState = inject(CACHE_STATE);\n                return () => {\n                    appRef.isStable.pipe(first((isStable) => isStable)).toPromise().then(() => {\n                        cacheState.isCacheActive = false;\n                    });\n                };\n            }\n        }\n    ];\n}\n\n// This file is not used to build this module. It is only used during editing\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { FetchBackend, HTTP_INTERCEPTORS, HttpBackend, HttpClient, HttpClientJsonpModule, HttpClientModule, HttpClientXsrfModule, HttpContext, HttpContextToken, HttpErrorResponse, HttpEventType, HttpFeatureKind, HttpHandler, HttpHeaderResponse, HttpHeaders, HttpParams, HttpRequest, HttpResponse, HttpResponseBase, HttpUrlEncodingCodec, HttpXhrBackend, HttpXsrfTokenExtractor, JsonpClientBackend, JsonpInterceptor, provideHttpClient, withFetch, withInterceptors, withInterceptorsFromDi, withJsonpSupport, withNoXsrfProtection, withRequestsMadeViaParent, withXsrfConfiguration, HttpInterceptorHandler as ɵHttpInterceptingHandler, HttpInterceptorHandler as ɵHttpInterceptorHandler, withHttpTransferCache as ɵwithHttpTransferCache };\n","/**\n * @license Angular v16.2.12\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { Subject, Subscription, Observable, merge as merge$1, BehaviorSubject, of } from 'rxjs';\nimport { share, switchMap, distinctUntilChanged, first } from 'rxjs/operators';\n\nfunction getClosureSafeProperty(objWithPropertyToExtract) {\n    for (let key in objWithPropertyToExtract) {\n        if (objWithPropertyToExtract[key] === getClosureSafeProperty) {\n            return key;\n        }\n    }\n    throw Error('Could not find renamed property on target object.');\n}\n/**\n * Sets properties on a target object from a source object, but only if\n * the property doesn't already exist on the target object.\n * @param target The target to set properties on\n * @param source The source of the property keys and values to set\n */\nfunction fillProperties(target, source) {\n    for (const key in source) {\n        if (source.hasOwnProperty(key) && !target.hasOwnProperty(key)) {\n            target[key] = source[key];\n        }\n    }\n}\n\nfunction stringify(token) {\n    if (typeof token === 'string') {\n        return token;\n    }\n    if (Array.isArray(token)) {\n        return '[' + token.map(stringify).join(', ') + ']';\n    }\n    if (token == null) {\n        return '' + token;\n    }\n    if (token.overriddenName) {\n        return `${token.overriddenName}`;\n    }\n    if (token.name) {\n        return `${token.name}`;\n    }\n    const res = token.toString();\n    if (res == null) {\n        return '' + res;\n    }\n    const newLineIndex = res.indexOf('\\n');\n    return newLineIndex === -1 ? res : res.substring(0, newLineIndex);\n}\n/**\n * Concatenates two strings with separator, allocating new strings only when necessary.\n *\n * @param before before string.\n * @param separator separator string.\n * @param after after string.\n * @returns concatenated string.\n */\nfunction concatStringsWithSpace(before, after) {\n    return (before == null || before === '') ?\n        (after === null ? '' : after) :\n        ((after == null || after === '') ? before : before + ' ' + after);\n}\n\nconst __forward_ref__ = getClosureSafeProperty({ __forward_ref__: getClosureSafeProperty });\n/**\n * Allows to refer to references which are not yet defined.\n *\n * For instance, `forwardRef` is used when the `token` which we need to refer to for the purposes of\n * DI is declared, but not yet defined. It is also used when the `token` which we use when creating\n * a query is not yet defined.\n *\n * `forwardRef` is also used to break circularities in standalone components imports.\n *\n * @usageNotes\n * ### Circular dependency example\n * {@example core/di/ts/forward_ref/forward_ref_spec.ts region='forward_ref'}\n *\n * ### Circular standalone reference import example\n * ```ts\n * @Component({\n *   standalone: true,\n *   imports: [ChildComponent],\n *   selector: 'app-parent',\n *   template: `<app-child [hideParent]=\"hideParent\"></app-child>`,\n * })\n * export class ParentComponent {\n *   @Input() hideParent: boolean;\n * }\n *\n *\n * @Component({\n *   standalone: true,\n *   imports: [CommonModule, forwardRef(() => ParentComponent)],\n *   selector: 'app-child',\n *   template: `<app-parent *ngIf=\"!hideParent\"></app-parent>`,\n * })\n * export class ChildComponent {\n *   @Input() hideParent: boolean;\n * }\n * ```\n *\n * @publicApi\n */\nfunction forwardRef(forwardRefFn) {\n    forwardRefFn.__forward_ref__ = forwardRef;\n    forwardRefFn.toString = function () {\n        return stringify(this());\n    };\n    return forwardRefFn;\n}\n/**\n * Lazily retrieves the reference value from a forwardRef.\n *\n * Acts as the identity function when given a non-forward-ref value.\n *\n * @usageNotes\n * ### Example\n *\n * {@example core/di/ts/forward_ref/forward_ref_spec.ts region='resolve_forward_ref'}\n *\n * @see {@link forwardRef}\n * @publicApi\n */\nfunction resolveForwardRef(type) {\n    return isForwardRef(type) ? type() : type;\n}\n/** Checks whether a function is wrapped by a `forwardRef`. */\nfunction isForwardRef(fn) {\n    return typeof fn === 'function' && fn.hasOwnProperty(__forward_ref__) &&\n        fn.__forward_ref__ === forwardRef;\n}\n\nfunction isEnvironmentProviders(value) {\n    return value && !!value.ɵproviders;\n}\n\n/**\n * Base URL for the error details page.\n *\n * Keep this constant in sync across:\n *  - packages/compiler-cli/src/ngtsc/diagnostics/src/error_details_base_url.ts\n *  - packages/core/src/error_details_base_url.ts\n */\nconst ERROR_DETAILS_PAGE_BASE_URL = 'https://angular.io/errors';\n/**\n * URL for the XSS security documentation.\n */\nconst XSS_SECURITY_URL = 'https://g.co/ng/security#xss';\n\n/**\n * Class that represents a runtime error.\n * Formats and outputs the error message in a consistent way.\n *\n * Example:\n * ```\n *  throw new RuntimeError(\n *    RuntimeErrorCode.INJECTOR_ALREADY_DESTROYED,\n *    ngDevMode && 'Injector has already been destroyed.');\n * ```\n *\n * Note: the `message` argument contains a descriptive error message as a string in development\n * mode (when the `ngDevMode` is defined). In production mode (after tree-shaking pass), the\n * `message` argument becomes `false`, thus we account for it in the typings and the runtime\n * logic.\n */\nclass RuntimeError extends Error {\n    constructor(code, message) {\n        super(formatRuntimeError(code, message));\n        this.code = code;\n    }\n}\n/**\n * Called to format a runtime error.\n * See additional info on the `message` argument type in the `RuntimeError` class description.\n */\nfunction formatRuntimeError(code, message) {\n    // Error code might be a negative number, which is a special marker that instructs the logic to\n    // generate a link to the error details page on angular.io.\n    // We also prepend `0` to non-compile-time errors.\n    const fullCode = `NG0${Math.abs(code)}`;\n    let errorMessage = `${fullCode}${message ? ': ' + message : ''}`;\n    if (ngDevMode && code < 0) {\n        const addPeriodSeparator = !errorMessage.match(/[.,;!?\\n]$/);\n        const separator = addPeriodSeparator ? '.' : '';\n        errorMessage =\n            `${errorMessage}${separator} Find more at ${ERROR_DETAILS_PAGE_BASE_URL}/${fullCode}`;\n    }\n    return errorMessage;\n}\n\n/**\n * Used for stringify render output in Ivy.\n * Important! This function is very performance-sensitive and we should\n * be extra careful not to introduce megamorphic reads in it.\n * Check `core/test/render3/perf/render_stringify` for benchmarks and alternate implementations.\n */\nfunction renderStringify(value) {\n    if (typeof value === 'string')\n        return value;\n    if (value == null)\n        return '';\n    // Use `String` so that it invokes the `toString` method of the value. Note that this\n    // appears to be faster than calling `value.toString` (see `render_stringify` benchmark).\n    return String(value);\n}\n/**\n * Used to stringify a value so that it can be displayed in an error message.\n * Important! This function contains a megamorphic read and should only be\n * used for error messages.\n */\nfunction stringifyForError(value) {\n    if (typeof value === 'function')\n        return value.name || value.toString();\n    if (typeof value === 'object' && value != null && typeof value.type === 'function') {\n        return value.type.name || value.type.toString();\n    }\n    return renderStringify(value);\n}\n\n/** Called when directives inject each other (creating a circular dependency) */\nfunction throwCyclicDependencyError(token, path) {\n    const depPath = path ? `. Dependency path: ${path.join(' > ')} > ${token}` : '';\n    throw new RuntimeError(-200 /* RuntimeErrorCode.CYCLIC_DI_DEPENDENCY */, `Circular dependency in DI detected for ${token}${depPath}`);\n}\nfunction throwMixedMultiProviderError() {\n    throw new Error(`Cannot mix multi providers and regular providers`);\n}\nfunction throwInvalidProviderError(ngModuleType, providers, provider) {\n    if (ngModuleType && providers) {\n        const providerDetail = providers.map(v => v == provider ? '?' + provider + '?' : '...');\n        throw new Error(`Invalid provider for the NgModule '${stringify(ngModuleType)}' - only instances of Provider and Type are allowed, got: [${providerDetail.join(', ')}]`);\n    }\n    else if (isEnvironmentProviders(provider)) {\n        if (provider.ɵfromNgModule) {\n            throw new RuntimeError(207 /* RuntimeErrorCode.PROVIDER_IN_WRONG_CONTEXT */, `Invalid providers from 'importProvidersFrom' present in a non-environment injector. 'importProvidersFrom' can't be used for component providers.`);\n        }\n        else {\n            throw new RuntimeError(207 /* RuntimeErrorCode.PROVIDER_IN_WRONG_CONTEXT */, `Invalid providers present in a non-environment injector. 'EnvironmentProviders' can't be used for component providers.`);\n        }\n    }\n    else {\n        throw new Error('Invalid provider');\n    }\n}\n/** Throws an error when a token is not found in DI. */\nfunction throwProviderNotFoundError(token, injectorName) {\n    const injectorDetails = injectorName ? ` in ${injectorName}` : '';\n    throw new RuntimeError(-201 /* RuntimeErrorCode.PROVIDER_NOT_FOUND */, ngDevMode && `No provider for ${stringifyForError(token)} found${injectorDetails}`);\n}\n\n// The functions in this file verify that the assumptions we are making\nfunction assertNumber(actual, msg) {\n    if (!(typeof actual === 'number')) {\n        throwError(msg, typeof actual, 'number', '===');\n    }\n}\nfunction assertNumberInRange(actual, minInclusive, maxInclusive) {\n    assertNumber(actual, 'Expected a number');\n    assertLessThanOrEqual(actual, maxInclusive, 'Expected number to be less than or equal to');\n    assertGreaterThanOrEqual(actual, minInclusive, 'Expected number to be greater than or equal to');\n}\nfunction assertString(actual, msg) {\n    if (!(typeof actual === 'string')) {\n        throwError(msg, actual === null ? 'null' : typeof actual, 'string', '===');\n    }\n}\nfunction assertFunction(actual, msg) {\n    if (!(typeof actual === 'function')) {\n        throwError(msg, actual === null ? 'null' : typeof actual, 'function', '===');\n    }\n}\nfunction assertEqual(actual, expected, msg) {\n    if (!(actual == expected)) {\n        throwError(msg, actual, expected, '==');\n    }\n}\nfunction assertNotEqual(actual, expected, msg) {\n    if (!(actual != expected)) {\n        throwError(msg, actual, expected, '!=');\n    }\n}\nfunction assertSame(actual, expected, msg) {\n    if (!(actual === expected)) {\n        throwError(msg, actual, expected, '===');\n    }\n}\nfunction assertNotSame(actual, expected, msg) {\n    if (!(actual !== expected)) {\n        throwError(msg, actual, expected, '!==');\n    }\n}\nfunction assertLessThan(actual, expected, msg) {\n    if (!(actual < expected)) {\n        throwError(msg, actual, expected, '<');\n    }\n}\nfunction assertLessThanOrEqual(actual, expected, msg) {\n    if (!(actual <= expected)) {\n        throwError(msg, actual, expected, '<=');\n    }\n}\nfunction assertGreaterThan(actual, expected, msg) {\n    if (!(actual > expected)) {\n        throwError(msg, actual, expected, '>');\n    }\n}\nfunction assertGreaterThanOrEqual(actual, expected, msg) {\n    if (!(actual >= expected)) {\n        throwError(msg, actual, expected, '>=');\n    }\n}\nfunction assertNotDefined(actual, msg) {\n    if (actual != null) {\n        throwError(msg, actual, null, '==');\n    }\n}\nfunction assertDefined(actual, msg) {\n    if (actual == null) {\n        throwError(msg, actual, null, '!=');\n    }\n}\nfunction throwError(msg, actual, expected, comparison) {\n    throw new Error(`ASSERTION ERROR: ${msg}` +\n        (comparison == null ? '' : ` [Expected=> ${expected} ${comparison} ${actual} <=Actual]`));\n}\nfunction assertDomNode(node) {\n    if (!(node instanceof Node)) {\n        throwError(`The provided value must be an instance of a DOM Node but got ${stringify(node)}`);\n    }\n}\nfunction assertIndexInRange(arr, index) {\n    assertDefined(arr, 'Array must be defined.');\n    const maxLen = arr.length;\n    if (index < 0 || index >= maxLen) {\n        throwError(`Index expected to be less than ${maxLen} but got ${index}`);\n    }\n}\nfunction assertOneOf(value, ...validValues) {\n    if (validValues.indexOf(value) !== -1)\n        return true;\n    throwError(`Expected value to be one of ${JSON.stringify(validValues)} but was ${JSON.stringify(value)}.`);\n}\n\n/**\n * Construct an injectable definition which defines how a token will be constructed by the DI\n * system, and in which injectors (if any) it will be available.\n *\n * This should be assigned to a static `ɵprov` field on a type, which will then be an\n * `InjectableType`.\n *\n * Options:\n * * `providedIn` determines which injectors will include the injectable, by either associating it\n *   with an `@NgModule` or other `InjectorType`, or by specifying that this injectable should be\n *   provided in the `'root'` injector, which will be the application-level injector in most apps.\n * * `factory` gives the zero argument function which will create an instance of the injectable.\n *   The factory can call [`inject`](api/core/inject) to access the `Injector` and request injection\n * of dependencies.\n *\n * @codeGenApi\n * @publicApi This instruction has been emitted by ViewEngine for some time and is deployed to npm.\n */\nfunction ɵɵdefineInjectable(opts) {\n    return {\n        token: opts.token,\n        providedIn: opts.providedIn || null,\n        factory: opts.factory,\n        value: undefined,\n    };\n}\n/**\n * @deprecated in v8, delete after v10. This API should be used only by generated code, and that\n * code should now use ɵɵdefineInjectable instead.\n * @publicApi\n */\nconst defineInjectable = ɵɵdefineInjectable;\n/**\n * Construct an `InjectorDef` which configures an injector.\n *\n * This should be assigned to a static injector def (`ɵinj`) field on a type, which will then be an\n * `InjectorType`.\n *\n * Options:\n *\n * * `providers`: an optional array of providers to add to the injector. Each provider must\n *   either have a factory or point to a type which has a `ɵprov` static property (the\n *   type must be an `InjectableType`).\n * * `imports`: an optional array of imports of other `InjectorType`s or `InjectorTypeWithModule`s\n *   whose providers will also be added to the injector. Locally provided types will override\n *   providers from imports.\n *\n * @codeGenApi\n */\nfunction ɵɵdefineInjector(options) {\n    return { providers: options.providers || [], imports: options.imports || [] };\n}\n/**\n * Read the injectable def (`ɵprov`) for `type` in a way which is immune to accidentally reading\n * inherited value.\n *\n * @param type A type which may have its own (non-inherited) `ɵprov`.\n */\nfunction getInjectableDef(type) {\n    return getOwnDefinition(type, NG_PROV_DEF) || getOwnDefinition(type, NG_INJECTABLE_DEF);\n}\nfunction isInjectable(type) {\n    return getInjectableDef(type) !== null;\n}\n/**\n * Return definition only if it is defined directly on `type` and is not inherited from a base\n * class of `type`.\n */\nfunction getOwnDefinition(type, field) {\n    return type.hasOwnProperty(field) ? type[field] : null;\n}\n/**\n * Read the injectable def (`ɵprov`) for `type` or read the `ɵprov` from one of its ancestors.\n *\n * @param type A type which may have `ɵprov`, via inheritance.\n *\n * @deprecated Will be removed in a future version of Angular, where an error will occur in the\n *     scenario if we find the `ɵprov` on an ancestor only.\n */\nfunction getInheritedInjectableDef(type) {\n    const def = type && (type[NG_PROV_DEF] || type[NG_INJECTABLE_DEF]);\n    if (def) {\n        ngDevMode &&\n            console.warn(`DEPRECATED: DI is instantiating a token \"${type.name}\" that inherits its @Injectable decorator but does not provide one itself.\\n` +\n                `This will become an error in a future version of Angular. Please add @Injectable() to the \"${type.name}\" class.`);\n        return def;\n    }\n    else {\n        return null;\n    }\n}\n/**\n * Read the injector def type in a way which is immune to accidentally reading inherited value.\n *\n * @param type type which may have an injector def (`ɵinj`)\n */\nfunction getInjectorDef(type) {\n    return type && (type.hasOwnProperty(NG_INJ_DEF) || type.hasOwnProperty(NG_INJECTOR_DEF)) ?\n        type[NG_INJ_DEF] :\n        null;\n}\nconst NG_PROV_DEF = getClosureSafeProperty({ ɵprov: getClosureSafeProperty });\nconst NG_INJ_DEF = getClosureSafeProperty({ ɵinj: getClosureSafeProperty });\n// We need to keep these around so we can read off old defs if new defs are unavailable\nconst NG_INJECTABLE_DEF = getClosureSafeProperty({ ngInjectableDef: getClosureSafeProperty });\nconst NG_INJECTOR_DEF = getClosureSafeProperty({ ngInjectorDef: getClosureSafeProperty });\n\n/**\n * Injection flags for DI.\n *\n * @publicApi\n * @deprecated use an options object for [`inject`](api/core/inject) instead.\n */\nvar InjectFlags;\n(function (InjectFlags) {\n    // TODO(alxhub): make this 'const' (and remove `InternalInjectFlags` enum) when ngc no longer\n    // writes exports of it into ngfactory files.\n    /** Check self and check parent injector if needed */\n    InjectFlags[InjectFlags[\"Default\"] = 0] = \"Default\";\n    /**\n     * Specifies that an injector should retrieve a dependency from any injector until reaching the\n     * host element of the current component. (Only used with Element Injector)\n     */\n    InjectFlags[InjectFlags[\"Host\"] = 1] = \"Host\";\n    /** Don't ascend to ancestors of the node requesting injection. */\n    InjectFlags[InjectFlags[\"Self\"] = 2] = \"Self\";\n    /** Skip the node that is requesting injection. */\n    InjectFlags[InjectFlags[\"SkipSelf\"] = 4] = \"SkipSelf\";\n    /** Inject `defaultValue` instead if token not found. */\n    InjectFlags[InjectFlags[\"Optional\"] = 8] = \"Optional\";\n})(InjectFlags || (InjectFlags = {}));\n\n/**\n * Current implementation of inject.\n *\n * By default, it is `injectInjectorOnly`, which makes it `Injector`-only aware. It can be changed\n * to `directiveInject`, which brings in the `NodeInjector` system of ivy. It is designed this\n * way for two reasons:\n *  1. `Injector` should not depend on ivy logic.\n *  2. To maintain tree shake-ability we don't want to bring in unnecessary code.\n */\nlet _injectImplementation;\nfunction getInjectImplementation() {\n    return _injectImplementation;\n}\n/**\n * Sets the current inject implementation.\n */\nfunction setInjectImplementation(impl) {\n    const previous = _injectImplementation;\n    _injectImplementation = impl;\n    return previous;\n}\n/**\n * Injects `root` tokens in limp mode.\n *\n * If no injector exists, we can still inject tree-shakable providers which have `providedIn` set to\n * `\"root\"`. This is known as the limp mode injection. In such case the value is stored in the\n * injectable definition.\n */\nfunction injectRootLimpMode(token, notFoundValue, flags) {\n    const injectableDef = getInjectableDef(token);\n    if (injectableDef && injectableDef.providedIn == 'root') {\n        return injectableDef.value === undefined ? injectableDef.value = injectableDef.factory() :\n            injectableDef.value;\n    }\n    if (flags & InjectFlags.Optional)\n        return null;\n    if (notFoundValue !== undefined)\n        return notFoundValue;\n    throwProviderNotFoundError(stringify(token), 'Injector');\n}\n/**\n * Assert that `_injectImplementation` is not `fn`.\n *\n * This is useful, to prevent infinite recursion.\n *\n * @param fn Function which it should not equal to\n */\nfunction assertInjectImplementationNotEqual(fn) {\n    ngDevMode &&\n        assertNotEqual(_injectImplementation, fn, 'Calling ɵɵinject would cause infinite recursion');\n}\n\nconst _global = globalThis;\n\nfunction ngDevModeResetPerfCounters() {\n    const locationString = typeof location !== 'undefined' ? location.toString() : '';\n    const newCounters = {\n        namedConstructors: locationString.indexOf('ngDevMode=namedConstructors') != -1,\n        firstCreatePass: 0,\n        tNode: 0,\n        tView: 0,\n        rendererCreateTextNode: 0,\n        rendererSetText: 0,\n        rendererCreateElement: 0,\n        rendererAddEventListener: 0,\n        rendererSetAttribute: 0,\n        rendererRemoveAttribute: 0,\n        rendererSetProperty: 0,\n        rendererSetClassName: 0,\n        rendererAddClass: 0,\n        rendererRemoveClass: 0,\n        rendererSetStyle: 0,\n        rendererRemoveStyle: 0,\n        rendererDestroy: 0,\n        rendererDestroyNode: 0,\n        rendererMoveNode: 0,\n        rendererRemoveNode: 0,\n        rendererAppendChild: 0,\n        rendererInsertBefore: 0,\n        rendererCreateComment: 0,\n        hydratedNodes: 0,\n        hydratedComponents: 0,\n        dehydratedViewsRemoved: 0,\n        dehydratedViewsCleanupRuns: 0,\n        componentsSkippedHydration: 0,\n    };\n    // Make sure to refer to ngDevMode as ['ngDevMode'] for closure.\n    const allowNgDevModeTrue = locationString.indexOf('ngDevMode=false') === -1;\n    _global['ngDevMode'] = allowNgDevModeTrue && newCounters;\n    return newCounters;\n}\n/**\n * This function checks to see if the `ngDevMode` has been set. If yes,\n * then we honor it, otherwise we default to dev mode with additional checks.\n *\n * The idea is that unless we are doing production build where we explicitly\n * set `ngDevMode == false` we should be helping the developer by providing\n * as much early warning and errors as possible.\n *\n * `ɵɵdefineComponent` is guaranteed to have been called before any component template functions\n * (and thus Ivy instructions), so a single initialization there is sufficient to ensure ngDevMode\n * is defined for the entire instruction set.\n *\n * When checking `ngDevMode` on toplevel, always init it before referencing it\n * (e.g. `((typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode())`), otherwise you can\n *  get a `ReferenceError` like in https://github.com/angular/angular/issues/31595.\n *\n * Details on possible values for `ngDevMode` can be found on its docstring.\n *\n * NOTE:\n * - changes to the `ngDevMode` name must be synced with `compiler-cli/src/tooling.ts`.\n */\nfunction initNgDevMode() {\n    // The below checks are to ensure that calling `initNgDevMode` multiple times does not\n    // reset the counters.\n    // If the `ngDevMode` is not an object, then it means we have not created the perf counters\n    // yet.\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        if (typeof ngDevMode !== 'object') {\n            ngDevModeResetPerfCounters();\n        }\n        return typeof ngDevMode !== 'undefined' && !!ngDevMode;\n    }\n    return false;\n}\n\n/**\n * Creates a token that can be used in a DI Provider.\n *\n * Use an `InjectionToken` whenever the type you are injecting is not reified (does not have a\n * runtime representation) such as when injecting an interface, callable type, array or\n * parameterized type.\n *\n * `InjectionToken` is parameterized on `T` which is the type of object which will be returned by\n * the `Injector`. This provides an additional level of type safety.\n *\n * <div class=\"alert is-helpful\">\n *\n * **Important Note**: Ensure that you use the same instance of the `InjectionToken` in both the\n * provider and the injection call. Creating a new instance of `InjectionToken` in different places,\n * even with the same description, will be treated as different tokens by Angular's DI system,\n * leading to a `NullInjectorError`.\n *\n * </div>\n *\n * <code-example format=\"typescript\" language=\"typescript\" path=\"injection-token/src/main.ts\"\n * region=\"InjectionToken\"></code-example>\n *\n * When creating an `InjectionToken`, you can optionally specify a factory function which returns\n * (possibly by creating) a default value of the parameterized type `T`. This sets up the\n * `InjectionToken` using this factory as a provider as if it was defined explicitly in the\n * application's root injector. If the factory function, which takes zero arguments, needs to inject\n * dependencies, it can do so using the [`inject`](api/core/inject) function.\n * As you can see in the Tree-shakable InjectionToken example below.\n *\n * Additionally, if a `factory` is specified you can also specify the `providedIn` option, which\n * overrides the above behavior and marks the token as belonging to a particular `@NgModule` (note:\n * this option is now deprecated). As mentioned above, `'root'` is the default value for\n * `providedIn`.\n *\n * The `providedIn: NgModule` and `providedIn: 'any'` options are deprecated.\n *\n * @usageNotes\n * ### Basic Examples\n *\n * ### Plain InjectionToken\n *\n * {@example core/di/ts/injector_spec.ts region='InjectionToken'}\n *\n * ### Tree-shakable InjectionToken\n *\n * {@example core/di/ts/injector_spec.ts region='ShakableInjectionToken'}\n *\n * @publicApi\n */\nclass InjectionToken {\n    /**\n     * @param _desc   Description for the token,\n     *                used only for debugging purposes,\n     *                it should but does not need to be unique\n     * @param options Options for the token's usage, as described above\n     */\n    constructor(_desc, options) {\n        this._desc = _desc;\n        /** @internal */\n        this.ngMetadataName = 'InjectionToken';\n        this.ɵprov = undefined;\n        if (typeof options == 'number') {\n            (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                assertLessThan(options, 0, 'Only negative numbers are supported here');\n            // This is a special hack to assign __NG_ELEMENT_ID__ to this instance.\n            // See `InjectorMarkers`\n            this.__NG_ELEMENT_ID__ = options;\n        }\n        else if (options !== undefined) {\n            this.ɵprov = ɵɵdefineInjectable({\n                token: this,\n                providedIn: options.providedIn || 'root',\n                factory: options.factory,\n            });\n        }\n    }\n    /**\n     * @internal\n     */\n    get multi() {\n        return this;\n    }\n    toString() {\n        return `InjectionToken ${this._desc}`;\n    }\n}\n\nlet _injectorProfilerContext;\nfunction getInjectorProfilerContext() {\n    !ngDevMode && throwError('getInjectorProfilerContext should never be called in production mode');\n    return _injectorProfilerContext;\n}\nfunction setInjectorProfilerContext(context) {\n    !ngDevMode && throwError('setInjectorProfilerContext should never be called in production mode');\n    const previous = _injectorProfilerContext;\n    _injectorProfilerContext = context;\n    return previous;\n}\nlet injectorProfilerCallback = null;\n/**\n * Sets the callback function which will be invoked during certain DI events within the\n * runtime (for example: injecting services, creating injectable instances, configuring providers)\n *\n * Warning: this function is *INTERNAL* and should not be relied upon in application's code.\n * The contract of the function might be changed in any release and/or the function can be removed\n * completely.\n *\n * @param profiler function provided by the caller or null value to disable profiling.\n */\nconst setInjectorProfiler = (injectorProfiler) => {\n    !ngDevMode && throwError('setInjectorProfiler should never be called in production mode');\n    injectorProfilerCallback = injectorProfiler;\n};\n/**\n * Injector profiler function which emits on DI events executed by the runtime.\n *\n * @param event InjectorProfilerEvent corresponding to the DI event being emitted\n */\nfunction injectorProfiler(event) {\n    !ngDevMode && throwError('Injector profiler should never be called in production mode');\n    if (injectorProfilerCallback != null /* both `null` and `undefined` */) {\n        injectorProfilerCallback(event);\n    }\n}\n/**\n * Emits an InjectorProfilerEventType.ProviderConfigured to the injector profiler. The data in the\n * emitted event includes the raw provider, as well as the token that provider is providing.\n *\n * @param eventProvider A provider object\n */\nfunction emitProviderConfiguredEvent(eventProvider, isViewProvider = false) {\n    !ngDevMode && throwError('Injector profiler should never be called in production mode');\n    let token;\n    // if the provider is a TypeProvider (typeof provider is function) then the token is the\n    // provider itself\n    if (typeof eventProvider === 'function') {\n        token = eventProvider;\n    }\n    // if the provider is an injection token, then the token is the injection token.\n    else if (eventProvider instanceof InjectionToken) {\n        token = eventProvider;\n    }\n    // in all other cases we can access the token via the `provide` property of the provider\n    else {\n        token = resolveForwardRef(eventProvider.provide);\n    }\n    let provider = eventProvider;\n    // Injection tokens may define their own default provider which gets attached to the token itself\n    // as `ɵprov`. In this case, we want to emit the provider that is attached to the token, not the\n    // token itself.\n    if (eventProvider instanceof InjectionToken) {\n        provider = eventProvider.ɵprov || eventProvider;\n    }\n    injectorProfiler({\n        type: 2 /* InjectorProfilerEventType.ProviderConfigured */,\n        context: getInjectorProfilerContext(),\n        providerRecord: { token, provider, isViewProvider }\n    });\n}\n/**\n * Emits an event to the injector profiler with the instance that was created. Note that\n * the injector associated with this emission can be accessed by using getDebugInjectContext()\n *\n * @param instance an object created by an injector\n */\nfunction emitInstanceCreatedByInjectorEvent(instance) {\n    !ngDevMode && throwError('Injector profiler should never be called in production mode');\n    injectorProfiler({\n        type: 1 /* InjectorProfilerEventType.InstanceCreatedByInjector */,\n        context: getInjectorProfilerContext(),\n        instance: { value: instance }\n    });\n}\n/**\n * @param token DI token associated with injected service\n * @param value the instance of the injected service (i.e the result of `inject(token)`)\n * @param flags the flags that the token was injected with\n */\nfunction emitInjectEvent(token, value, flags) {\n    !ngDevMode && throwError('Injector profiler should never be called in production mode');\n    injectorProfiler({\n        type: 0 /* InjectorProfilerEventType.Inject */,\n        context: getInjectorProfilerContext(),\n        service: { token, value, flags }\n    });\n}\nfunction runInInjectorProfilerContext(injector, token, callback) {\n    !ngDevMode &&\n        throwError('runInInjectorProfilerContext should never be called in production mode');\n    const prevInjectContext = setInjectorProfilerContext({ injector, token });\n    try {\n        callback();\n    }\n    finally {\n        setInjectorProfilerContext(prevInjectContext);\n    }\n}\n\nconst _THROW_IF_NOT_FOUND = {};\nconst THROW_IF_NOT_FOUND = _THROW_IF_NOT_FOUND;\n/*\n * Name of a property (that we patch onto DI decorator), which is used as an annotation of which\n * InjectFlag this decorator represents. This allows to avoid direct references to the DI decorators\n * in the code, thus making them tree-shakable.\n */\nconst DI_DECORATOR_FLAG = '__NG_DI_FLAG__';\nconst NG_TEMP_TOKEN_PATH = 'ngTempTokenPath';\nconst NG_TOKEN_PATH = 'ngTokenPath';\nconst NEW_LINE = /\\n/gm;\nconst NO_NEW_LINE = 'ɵ';\nconst SOURCE = '__source';\n/**\n * Current injector value used by `inject`.\n * - `undefined`: it is an error to call `inject`\n * - `null`: `inject` can be called but there is no injector (limp-mode).\n * - Injector instance: Use the injector for resolution.\n */\nlet _currentInjector = undefined;\nfunction getCurrentInjector() {\n    return _currentInjector;\n}\nfunction setCurrentInjector(injector) {\n    const former = _currentInjector;\n    _currentInjector = injector;\n    return former;\n}\nfunction injectInjectorOnly(token, flags = InjectFlags.Default) {\n    if (_currentInjector === undefined) {\n        throw new RuntimeError(-203 /* RuntimeErrorCode.MISSING_INJECTION_CONTEXT */, ngDevMode &&\n            `inject() must be called from an injection context such as a constructor, a factory function, a field initializer, or a function used with \\`runInInjectionContext\\`.`);\n    }\n    else if (_currentInjector === null) {\n        return injectRootLimpMode(token, undefined, flags);\n    }\n    else {\n        const value = _currentInjector.get(token, flags & InjectFlags.Optional ? null : undefined, flags);\n        ngDevMode && emitInjectEvent(token, value, flags);\n        return value;\n    }\n}\nfunction ɵɵinject(token, flags = InjectFlags.Default) {\n    return (getInjectImplementation() || injectInjectorOnly)(resolveForwardRef(token), flags);\n}\n/**\n * Throws an error indicating that a factory function could not be generated by the compiler for a\n * particular class.\n *\n * The name of the class is not mentioned here, but will be in the generated factory function name\n * and thus in the stack trace.\n *\n * @codeGenApi\n */\nfunction ɵɵinvalidFactoryDep(index) {\n    throw new RuntimeError(202 /* RuntimeErrorCode.INVALID_FACTORY_DEPENDENCY */, ngDevMode &&\n        `This constructor is not compatible with Angular Dependency Injection because its dependency at index ${index} of the parameter list is invalid.\nThis can happen if the dependency type is a primitive like a string or if an ancestor of this class is missing an Angular decorator.\n\nPlease check that 1) the type for the parameter at index ${index} is correct and 2) the correct Angular decorators are defined for this class and its ancestors.`);\n}\n/**\n * Injects a token from the currently active injector.\n * `inject` is only supported in an [injection context](/guide/dependency-injection-context). It can\n * be used during:\n * - Construction (via the `constructor`) of a class being instantiated by the DI system, such\n * as an `@Injectable` or `@Component`.\n * - In the initializer for fields of such classes.\n * - In the factory function specified for `useFactory` of a `Provider` or an `@Injectable`.\n * - In the `factory` function specified for an `InjectionToken`.\n * - In a stackframe of a function call in a DI context\n *\n * @param token A token that represents a dependency that should be injected.\n * @param flags Optional flags that control how injection is executed.\n * The flags correspond to injection strategies that can be specified with\n * parameter decorators `@Host`, `@Self`, `@SkipSelf`, and `@Optional`.\n * @returns the injected value if operation is successful, `null` otherwise.\n * @throws if called outside of a supported context.\n *\n * @usageNotes\n * In practice the `inject()` calls are allowed in a constructor, a constructor parameter and a\n * field initializer:\n *\n * ```typescript\n * @Injectable({providedIn: 'root'})\n * export class Car {\n *   radio: Radio|undefined;\n *   // OK: field initializer\n *   spareTyre = inject(Tyre);\n *\n *   constructor() {\n *     // OK: constructor body\n *     this.radio = inject(Radio);\n *   }\n * }\n * ```\n *\n * It is also legal to call `inject` from a provider's factory:\n *\n * ```typescript\n * providers: [\n *   {provide: Car, useFactory: () => {\n *     // OK: a class factory\n *     const engine = inject(Engine);\n *     return new Car(engine);\n *   }}\n * ]\n * ```\n *\n * Calls to the `inject()` function outside of the class creation context will result in error. Most\n * notably, calls to `inject()` are disallowed after a class instance was created, in methods\n * (including lifecycle hooks):\n *\n * ```typescript\n * @Component({ ... })\n * export class CarComponent {\n *   ngOnInit() {\n *     // ERROR: too late, the component instance was already created\n *     const engine = inject(Engine);\n *     engine.start();\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nfunction inject(token, flags = InjectFlags.Default) {\n    return ɵɵinject(token, convertToBitFlags(flags));\n}\n// Converts object-based DI flags (`InjectOptions`) to bit flags (`InjectFlags`).\nfunction convertToBitFlags(flags) {\n    if (typeof flags === 'undefined' || typeof flags === 'number') {\n        return flags;\n    }\n    // While TypeScript doesn't accept it without a cast, bitwise OR with false-y values in\n    // JavaScript is a no-op. We can use that for a very codesize-efficient conversion from\n    // `InjectOptions` to `InjectFlags`.\n    return (0 /* InternalInjectFlags.Default */ | // comment to force a line break in the formatter\n        (flags.optional && 8 /* InternalInjectFlags.Optional */) |\n        (flags.host && 1 /* InternalInjectFlags.Host */) |\n        (flags.self && 2 /* InternalInjectFlags.Self */) |\n        (flags.skipSelf && 4 /* InternalInjectFlags.SkipSelf */));\n}\nfunction injectArgs(types) {\n    const args = [];\n    for (let i = 0; i < types.length; i++) {\n        const arg = resolveForwardRef(types[i]);\n        if (Array.isArray(arg)) {\n            if (arg.length === 0) {\n                throw new RuntimeError(900 /* RuntimeErrorCode.INVALID_DIFFER_INPUT */, ngDevMode && 'Arguments array must have arguments.');\n            }\n            let type = undefined;\n            let flags = InjectFlags.Default;\n            for (let j = 0; j < arg.length; j++) {\n                const meta = arg[j];\n                const flag = getInjectFlag(meta);\n                if (typeof flag === 'number') {\n                    // Special case when we handle @Inject decorator.\n                    if (flag === -1 /* DecoratorFlags.Inject */) {\n                        type = meta.token;\n                    }\n                    else {\n                        flags |= flag;\n                    }\n                }\n                else {\n                    type = meta;\n                }\n            }\n            args.push(ɵɵinject(type, flags));\n        }\n        else {\n            args.push(ɵɵinject(arg));\n        }\n    }\n    return args;\n}\n/**\n * Attaches a given InjectFlag to a given decorator using monkey-patching.\n * Since DI decorators can be used in providers `deps` array (when provider is configured using\n * `useFactory`) without initialization (e.g. `Host`) and as an instance (e.g. `new Host()`), we\n * attach the flag to make it available both as a static property and as a field on decorator\n * instance.\n *\n * @param decorator Provided DI decorator.\n * @param flag InjectFlag that should be applied.\n */\nfunction attachInjectFlag(decorator, flag) {\n    decorator[DI_DECORATOR_FLAG] = flag;\n    decorator.prototype[DI_DECORATOR_FLAG] = flag;\n    return decorator;\n}\n/**\n * Reads monkey-patched property that contains InjectFlag attached to a decorator.\n *\n * @param token Token that may contain monkey-patched DI flags property.\n */\nfunction getInjectFlag(token) {\n    return token[DI_DECORATOR_FLAG];\n}\nfunction catchInjectorError(e, token, injectorErrorName, source) {\n    const tokenPath = e[NG_TEMP_TOKEN_PATH];\n    if (token[SOURCE]) {\n        tokenPath.unshift(token[SOURCE]);\n    }\n    e.message = formatError('\\n' + e.message, tokenPath, injectorErrorName, source);\n    e[NG_TOKEN_PATH] = tokenPath;\n    e[NG_TEMP_TOKEN_PATH] = null;\n    throw e;\n}\nfunction formatError(text, obj, injectorErrorName, source = null) {\n    text = text && text.charAt(0) === '\\n' && text.charAt(1) == NO_NEW_LINE ? text.slice(2) : text;\n    let context = stringify(obj);\n    if (Array.isArray(obj)) {\n        context = obj.map(stringify).join(' -> ');\n    }\n    else if (typeof obj === 'object') {\n        let parts = [];\n        for (let key in obj) {\n            if (obj.hasOwnProperty(key)) {\n                let value = obj[key];\n                parts.push(key + ':' + (typeof value === 'string' ? JSON.stringify(value) : stringify(value)));\n            }\n        }\n        context = `{${parts.join(', ')}}`;\n    }\n    return `${injectorErrorName}${source ? '(' + source + ')' : ''}[${context}]: ${text.replace(NEW_LINE, '\\n  ')}`;\n}\n\n/**\n * Convince closure compiler that the wrapped function has no side-effects.\n *\n * Closure compiler always assumes that `toString` has no side-effects. We use this quirk to\n * allow us to execute a function but have closure compiler mark the call as no-side-effects.\n * It is important that the return value for the `noSideEffects` function be assigned\n * to something which is retained otherwise the call to `noSideEffects` will be removed by closure\n * compiler.\n */\nfunction noSideEffects(fn) {\n    return { toString: fn }.toString();\n}\n\n/**\n * The strategy that the default change detector uses to detect changes.\n * When set, takes effect the next time change detection is triggered.\n *\n * @see {@link ChangeDetectorRef#usage-notes Change detection usage}\n *\n * @publicApi\n */\nvar ChangeDetectionStrategy;\n(function (ChangeDetectionStrategy) {\n    /**\n     * Use the `CheckOnce` strategy, meaning that automatic change detection is deactivated\n     * until reactivated by setting the strategy to `Default` (`CheckAlways`).\n     * Change detection can still be explicitly invoked.\n     * This strategy applies to all child directives and cannot be overridden.\n     */\n    ChangeDetectionStrategy[ChangeDetectionStrategy[\"OnPush\"] = 0] = \"OnPush\";\n    /**\n     * Use the default `CheckAlways` strategy, in which change detection is automatic until\n     * explicitly deactivated.\n     */\n    ChangeDetectionStrategy[ChangeDetectionStrategy[\"Default\"] = 1] = \"Default\";\n})(ChangeDetectionStrategy || (ChangeDetectionStrategy = {}));\n\n/**\n * Defines the CSS styles encapsulation policies for the {@link Component} decorator's\n * `encapsulation` option.\n *\n * See {@link Component#encapsulation encapsulation}.\n *\n * @usageNotes\n * ### Example\n *\n * {@example core/ts/metadata/encapsulation.ts region='longform'}\n *\n * @publicApi\n */\nvar ViewEncapsulation$1;\n(function (ViewEncapsulation) {\n    // TODO: consider making `ViewEncapsulation` a `const enum` instead. See\n    // https://github.com/angular/angular/issues/44119 for additional information.\n    /**\n     * Emulates a native Shadow DOM encapsulation behavior by adding a specific attribute to the\n     * component's host element and applying the same attribute to all the CSS selectors provided\n     * via {@link Component#styles styles} or {@link Component#styleUrls styleUrls}.\n     *\n     * This is the default option.\n     */\n    ViewEncapsulation[ViewEncapsulation[\"Emulated\"] = 0] = \"Emulated\";\n    // Historically the 1 value was for `Native` encapsulation which has been removed as of v11.\n    /**\n     * Doesn't provide any sort of CSS style encapsulation, meaning that all the styles provided\n     * via {@link Component#styles styles} or {@link Component#styleUrls styleUrls} are applicable\n     * to any HTML element of the application regardless of their host Component.\n     */\n    ViewEncapsulation[ViewEncapsulation[\"None\"] = 2] = \"None\";\n    /**\n     * Uses the browser's native Shadow DOM API to encapsulate CSS styles, meaning that it creates\n     * a ShadowRoot for the component's host element which is then used to encapsulate\n     * all the Component's styling.\n     */\n    ViewEncapsulation[ViewEncapsulation[\"ShadowDom\"] = 3] = \"ShadowDom\";\n})(ViewEncapsulation$1 || (ViewEncapsulation$1 = {}));\n\n/**\n * This file contains reuseable \"empty\" symbols that can be used as default return values\n * in different parts of the rendering code. Because the same symbols are returned, this\n * allows for identity checks against these values to be consistently used by the framework\n * code.\n */\nconst EMPTY_OBJ = {};\nconst EMPTY_ARRAY = [];\n// freezing the values prevents any code from accidentally inserting new values in\nif ((typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode()) {\n    // These property accesses can be ignored because ngDevMode will be set to false\n    // when optimizing code and the whole if statement will be dropped.\n    // tslint:disable-next-line:no-toplevel-property-access\n    Object.freeze(EMPTY_OBJ);\n    // tslint:disable-next-line:no-toplevel-property-access\n    Object.freeze(EMPTY_ARRAY);\n}\n\nconst NG_COMP_DEF = getClosureSafeProperty({ ɵcmp: getClosureSafeProperty });\nconst NG_DIR_DEF = getClosureSafeProperty({ ɵdir: getClosureSafeProperty });\nconst NG_PIPE_DEF = getClosureSafeProperty({ ɵpipe: getClosureSafeProperty });\nconst NG_MOD_DEF = getClosureSafeProperty({ ɵmod: getClosureSafeProperty });\nconst NG_FACTORY_DEF = getClosureSafeProperty({ ɵfac: getClosureSafeProperty });\n/**\n * If a directive is diPublic, bloomAdd sets a property on the type with this constant as\n * the key and the directive's unique ID as the value. This allows us to map directives to their\n * bloom filter bit for DI.\n */\n// TODO(misko): This is wrong. The NG_ELEMENT_ID should never be minified.\nconst NG_ELEMENT_ID = getClosureSafeProperty({ __NG_ELEMENT_ID__: getClosureSafeProperty });\n/**\n * The `NG_ENV_ID` field on a DI token indicates special processing in the `EnvironmentInjector`:\n * getting such tokens from the `EnvironmentInjector` will bypass the standard DI resolution\n * strategy and instead will return implementation produced by the `NG_ENV_ID` factory function.\n *\n * This particular retrieval of DI tokens is mostly done to eliminate circular dependencies and\n * improve tree-shaking.\n */\nconst NG_ENV_ID = getClosureSafeProperty({ __NG_ENV_ID__: getClosureSafeProperty });\n\n/**\n * Returns an index of `classToSearch` in `className` taking token boundaries into account.\n *\n * `classIndexOf('AB A', 'A', 0)` will be 3 (not 0 since `AB!==A`)\n *\n * @param className A string containing classes (whitespace separated)\n * @param classToSearch A class name to locate\n * @param startingIndex Starting location of search\n * @returns an index of the located class (or -1 if not found)\n */\nfunction classIndexOf(className, classToSearch, startingIndex) {\n    ngDevMode && assertNotEqual(classToSearch, '', 'can not look for \"\" string.');\n    let end = className.length;\n    while (true) {\n        const foundIndex = className.indexOf(classToSearch, startingIndex);\n        if (foundIndex === -1)\n            return foundIndex;\n        if (foundIndex === 0 || className.charCodeAt(foundIndex - 1) <= 32 /* CharCode.SPACE */) {\n            // Ensure that it has leading whitespace\n            const length = classToSearch.length;\n            if (foundIndex + length === end ||\n                className.charCodeAt(foundIndex + length) <= 32 /* CharCode.SPACE */) {\n                // Ensure that it has trailing whitespace\n                return foundIndex;\n            }\n        }\n        // False positive, keep searching from where we left off.\n        startingIndex = foundIndex + 1;\n    }\n}\n\n/**\n * Assigns all attribute values to the provided element via the inferred renderer.\n *\n * This function accepts two forms of attribute entries:\n *\n * default: (key, value):\n *  attrs = [key1, value1, key2, value2]\n *\n * namespaced: (NAMESPACE_MARKER, uri, name, value)\n *  attrs = [NAMESPACE_MARKER, uri, name, value, NAMESPACE_MARKER, uri, name, value]\n *\n * The `attrs` array can contain a mix of both the default and namespaced entries.\n * The \"default\" values are set without a marker, but if the function comes across\n * a marker value then it will attempt to set a namespaced value. If the marker is\n * not of a namespaced value then the function will quit and return the index value\n * where it stopped during the iteration of the attrs array.\n *\n * See [AttributeMarker] to understand what the namespace marker value is.\n *\n * Note that this instruction does not support assigning style and class values to\n * an element. See `elementStart` and `elementHostAttrs` to learn how styling values\n * are applied to an element.\n * @param renderer The renderer to be used\n * @param native The element that the attributes will be assigned to\n * @param attrs The attribute array of values that will be assigned to the element\n * @returns the index value that was last accessed in the attributes array\n */\nfunction setUpAttributes(renderer, native, attrs) {\n    let i = 0;\n    while (i < attrs.length) {\n        const value = attrs[i];\n        if (typeof value === 'number') {\n            // only namespaces are supported. Other value types (such as style/class\n            // entries) are not supported in this function.\n            if (value !== 0 /* AttributeMarker.NamespaceURI */) {\n                break;\n            }\n            // we just landed on the marker value ... therefore\n            // we should skip to the next entry\n            i++;\n            const namespaceURI = attrs[i++];\n            const attrName = attrs[i++];\n            const attrVal = attrs[i++];\n            ngDevMode && ngDevMode.rendererSetAttribute++;\n            renderer.setAttribute(native, attrName, attrVal, namespaceURI);\n        }\n        else {\n            // attrName is string;\n            const attrName = value;\n            const attrVal = attrs[++i];\n            // Standard attributes\n            ngDevMode && ngDevMode.rendererSetAttribute++;\n            if (isAnimationProp(attrName)) {\n                renderer.setProperty(native, attrName, attrVal);\n            }\n            else {\n                renderer.setAttribute(native, attrName, attrVal);\n            }\n            i++;\n        }\n    }\n    // another piece of code may iterate over the same attributes array. Therefore\n    // it may be helpful to return the exact spot where the attributes array exited\n    // whether by running into an unsupported marker or if all the static values were\n    // iterated over.\n    return i;\n}\n/**\n * Test whether the given value is a marker that indicates that the following\n * attribute values in a `TAttributes` array are only the names of attributes,\n * and not name-value pairs.\n * @param marker The attribute marker to test.\n * @returns true if the marker is a \"name-only\" marker (e.g. `Bindings`, `Template` or `I18n`).\n */\nfunction isNameOnlyAttributeMarker(marker) {\n    return marker === 3 /* AttributeMarker.Bindings */ || marker === 4 /* AttributeMarker.Template */ ||\n        marker === 6 /* AttributeMarker.I18n */;\n}\nfunction isAnimationProp(name) {\n    // Perf note: accessing charCodeAt to check for the first character of a string is faster as\n    // compared to accessing a character at index 0 (ex. name[0]). The main reason for this is that\n    // charCodeAt doesn't allocate memory to return a substring.\n    return name.charCodeAt(0) === 64 /* CharCode.AT_SIGN */;\n}\n/**\n * Merges `src` `TAttributes` into `dst` `TAttributes` removing any duplicates in the process.\n *\n * This merge function keeps the order of attrs same.\n *\n * @param dst Location of where the merged `TAttributes` should end up.\n * @param src `TAttributes` which should be appended to `dst`\n */\nfunction mergeHostAttrs(dst, src) {\n    if (src === null || src.length === 0) {\n        // do nothing\n    }\n    else if (dst === null || dst.length === 0) {\n        // We have source, but dst is empty, just make a copy.\n        dst = src.slice();\n    }\n    else {\n        let srcMarker = -1 /* AttributeMarker.ImplicitAttributes */;\n        for (let i = 0; i < src.length; i++) {\n            const item = src[i];\n            if (typeof item === 'number') {\n                srcMarker = item;\n            }\n            else {\n                if (srcMarker === 0 /* AttributeMarker.NamespaceURI */) {\n                    // Case where we need to consume `key1`, `key2`, `value` items.\n                }\n                else if (srcMarker === -1 /* AttributeMarker.ImplicitAttributes */ ||\n                    srcMarker === 2 /* AttributeMarker.Styles */) {\n                    // Case where we have to consume `key1` and `value` only.\n                    mergeHostAttribute(dst, srcMarker, item, null, src[++i]);\n                }\n                else {\n                    // Case where we have to consume `key1` only.\n                    mergeHostAttribute(dst, srcMarker, item, null, null);\n                }\n            }\n        }\n    }\n    return dst;\n}\n/**\n * Append `key`/`value` to existing `TAttributes` taking region marker and duplicates into account.\n *\n * @param dst `TAttributes` to append to.\n * @param marker Region where the `key`/`value` should be added.\n * @param key1 Key to add to `TAttributes`\n * @param key2 Key to add to `TAttributes` (in case of `AttributeMarker.NamespaceURI`)\n * @param value Value to add or to overwrite to `TAttributes` Only used if `marker` is not Class.\n */\nfunction mergeHostAttribute(dst, marker, key1, key2, value) {\n    let i = 0;\n    // Assume that new markers will be inserted at the end.\n    let markerInsertPosition = dst.length;\n    // scan until correct type.\n    if (marker === -1 /* AttributeMarker.ImplicitAttributes */) {\n        markerInsertPosition = -1;\n    }\n    else {\n        while (i < dst.length) {\n            const dstValue = dst[i++];\n            if (typeof dstValue === 'number') {\n                if (dstValue === marker) {\n                    markerInsertPosition = -1;\n                    break;\n                }\n                else if (dstValue > marker) {\n                    // We need to save this as we want the markers to be inserted in specific order.\n                    markerInsertPosition = i - 1;\n                    break;\n                }\n            }\n        }\n    }\n    // search until you find place of insertion\n    while (i < dst.length) {\n        const item = dst[i];\n        if (typeof item === 'number') {\n            // since `i` started as the index after the marker, we did not find it if we are at the next\n            // marker\n            break;\n        }\n        else if (item === key1) {\n            // We already have same token\n            if (key2 === null) {\n                if (value !== null) {\n                    dst[i + 1] = value;\n                }\n                return;\n            }\n            else if (key2 === dst[i + 1]) {\n                dst[i + 2] = value;\n                return;\n            }\n        }\n        // Increment counter.\n        i++;\n        if (key2 !== null)\n            i++;\n        if (value !== null)\n            i++;\n    }\n    // insert at location.\n    if (markerInsertPosition !== -1) {\n        dst.splice(markerInsertPosition, 0, marker);\n        i = markerInsertPosition + 1;\n    }\n    dst.splice(i++, 0, key1);\n    if (key2 !== null) {\n        dst.splice(i++, 0, key2);\n    }\n    if (value !== null) {\n        dst.splice(i++, 0, value);\n    }\n}\n\nconst NG_TEMPLATE_SELECTOR = 'ng-template';\n/**\n * Search the `TAttributes` to see if it contains `cssClassToMatch` (case insensitive)\n *\n * @param attrs `TAttributes` to search through.\n * @param cssClassToMatch class to match (lowercase)\n * @param isProjectionMode Whether or not class matching should look into the attribute `class` in\n *    addition to the `AttributeMarker.Classes`.\n */\nfunction isCssClassMatching(attrs, cssClassToMatch, isProjectionMode) {\n    // TODO(misko): The fact that this function needs to know about `isProjectionMode` seems suspect.\n    // It is strange to me that sometimes the class information comes in form of `class` attribute\n    // and sometimes in form of `AttributeMarker.Classes`. Some investigation is needed to determine\n    // if that is the right behavior.\n    ngDevMode &&\n        assertEqual(cssClassToMatch, cssClassToMatch.toLowerCase(), 'Class name expected to be lowercase.');\n    let i = 0;\n    // Indicates whether we are processing value from the implicit\n    // attribute section (i.e. before the first marker in the array).\n    let isImplicitAttrsSection = true;\n    while (i < attrs.length) {\n        let item = attrs[i++];\n        if (typeof item === 'string' && isImplicitAttrsSection) {\n            const value = attrs[i++];\n            if (isProjectionMode && item === 'class') {\n                // We found a `class` attribute in the implicit attribute section,\n                // check if it matches the value of the `cssClassToMatch` argument.\n                if (classIndexOf(value.toLowerCase(), cssClassToMatch, 0) !== -1) {\n                    return true;\n                }\n            }\n        }\n        else if (item === 1 /* AttributeMarker.Classes */) {\n            // We found the classes section. Start searching for the class.\n            while (i < attrs.length && typeof (item = attrs[i++]) == 'string') {\n                // while we have strings\n                if (item.toLowerCase() === cssClassToMatch)\n                    return true;\n            }\n            return false;\n        }\n        else if (typeof item === 'number') {\n            // We've came across a first marker, which indicates\n            // that the implicit attribute section is over.\n            isImplicitAttrsSection = false;\n        }\n    }\n    return false;\n}\n/**\n * Checks whether the `tNode` represents an inline template (e.g. `*ngFor`).\n *\n * @param tNode current TNode\n */\nfunction isInlineTemplate(tNode) {\n    return tNode.type === 4 /* TNodeType.Container */ && tNode.value !== NG_TEMPLATE_SELECTOR;\n}\n/**\n * Function that checks whether a given tNode matches tag-based selector and has a valid type.\n *\n * Matching can be performed in 2 modes: projection mode (when we project nodes) and regular\n * directive matching mode:\n * - in the \"directive matching\" mode we do _not_ take TContainer's tagName into account if it is\n * different from NG_TEMPLATE_SELECTOR (value different from NG_TEMPLATE_SELECTOR indicates that a\n * tag name was extracted from * syntax so we would match the same directive twice);\n * - in the \"projection\" mode, we use a tag name potentially extracted from the * syntax processing\n * (applicable to TNodeType.Container only).\n */\nfunction hasTagAndTypeMatch(tNode, currentSelector, isProjectionMode) {\n    const tagNameToCompare = tNode.type === 4 /* TNodeType.Container */ && !isProjectionMode ? NG_TEMPLATE_SELECTOR : tNode.value;\n    return currentSelector === tagNameToCompare;\n}\n/**\n * A utility function to match an Ivy node static data against a simple CSS selector\n *\n * @param node static data of the node to match\n * @param selector The selector to try matching against the node.\n * @param isProjectionMode if `true` we are matching for content projection, otherwise we are doing\n * directive matching.\n * @returns true if node matches the selector.\n */\nfunction isNodeMatchingSelector(tNode, selector, isProjectionMode) {\n    ngDevMode && assertDefined(selector[0], 'Selector should have a tag name');\n    let mode = 4 /* SelectorFlags.ELEMENT */;\n    const nodeAttrs = tNode.attrs || [];\n    // Find the index of first attribute that has no value, only a name.\n    const nameOnlyMarkerIdx = getNameOnlyMarkerIndex(nodeAttrs);\n    // When processing \":not\" selectors, we skip to the next \":not\" if the\n    // current one doesn't match\n    let skipToNextSelector = false;\n    for (let i = 0; i < selector.length; i++) {\n        const current = selector[i];\n        if (typeof current === 'number') {\n            // If we finish processing a :not selector and it hasn't failed, return false\n            if (!skipToNextSelector && !isPositive(mode) && !isPositive(current)) {\n                return false;\n            }\n            // If we are skipping to the next :not() and this mode flag is positive,\n            // it's a part of the current :not() selector, and we should keep skipping\n            if (skipToNextSelector && isPositive(current))\n                continue;\n            skipToNextSelector = false;\n            mode = current | (mode & 1 /* SelectorFlags.NOT */);\n            continue;\n        }\n        if (skipToNextSelector)\n            continue;\n        if (mode & 4 /* SelectorFlags.ELEMENT */) {\n            mode = 2 /* SelectorFlags.ATTRIBUTE */ | mode & 1 /* SelectorFlags.NOT */;\n            if (current !== '' && !hasTagAndTypeMatch(tNode, current, isProjectionMode) ||\n                current === '' && selector.length === 1) {\n                if (isPositive(mode))\n                    return false;\n                skipToNextSelector = true;\n            }\n        }\n        else {\n            const selectorAttrValue = mode & 8 /* SelectorFlags.CLASS */ ? current : selector[++i];\n            // special case for matching against classes when a tNode has been instantiated with\n            // class and style values as separate attribute values (e.g. ['title', CLASS, 'foo'])\n            if ((mode & 8 /* SelectorFlags.CLASS */) && tNode.attrs !== null) {\n                if (!isCssClassMatching(tNode.attrs, selectorAttrValue, isProjectionMode)) {\n                    if (isPositive(mode))\n                        return false;\n                    skipToNextSelector = true;\n                }\n                continue;\n            }\n            const attrName = (mode & 8 /* SelectorFlags.CLASS */) ? 'class' : current;\n            const attrIndexInNode = findAttrIndexInNode(attrName, nodeAttrs, isInlineTemplate(tNode), isProjectionMode);\n            if (attrIndexInNode === -1) {\n                if (isPositive(mode))\n                    return false;\n                skipToNextSelector = true;\n                continue;\n            }\n            if (selectorAttrValue !== '') {\n                let nodeAttrValue;\n                if (attrIndexInNode > nameOnlyMarkerIdx) {\n                    nodeAttrValue = '';\n                }\n                else {\n                    ngDevMode &&\n                        assertNotEqual(nodeAttrs[attrIndexInNode], 0 /* AttributeMarker.NamespaceURI */, 'We do not match directives on namespaced attributes');\n                    // we lowercase the attribute value to be able to match\n                    // selectors without case-sensitivity\n                    // (selectors are already in lowercase when generated)\n                    nodeAttrValue = nodeAttrs[attrIndexInNode + 1].toLowerCase();\n                }\n                const compareAgainstClassName = mode & 8 /* SelectorFlags.CLASS */ ? nodeAttrValue : null;\n                if (compareAgainstClassName &&\n                    classIndexOf(compareAgainstClassName, selectorAttrValue, 0) !== -1 ||\n                    mode & 2 /* SelectorFlags.ATTRIBUTE */ && selectorAttrValue !== nodeAttrValue) {\n                    if (isPositive(mode))\n                        return false;\n                    skipToNextSelector = true;\n                }\n            }\n        }\n    }\n    return isPositive(mode) || skipToNextSelector;\n}\nfunction isPositive(mode) {\n    return (mode & 1 /* SelectorFlags.NOT */) === 0;\n}\n/**\n * Examines the attribute's definition array for a node to find the index of the\n * attribute that matches the given `name`.\n *\n * NOTE: This will not match namespaced attributes.\n *\n * Attribute matching depends upon `isInlineTemplate` and `isProjectionMode`.\n * The following table summarizes which types of attributes we attempt to match:\n *\n * ===========================================================================================================\n * Modes                   | Normal Attributes | Bindings Attributes | Template Attributes | I18n\n * Attributes\n * ===========================================================================================================\n * Inline + Projection     | YES               | YES                 | NO                  | YES\n * -----------------------------------------------------------------------------------------------------------\n * Inline + Directive      | NO                | NO                  | YES                 | NO\n * -----------------------------------------------------------------------------------------------------------\n * Non-inline + Projection | YES               | YES                 | NO                  | YES\n * -----------------------------------------------------------------------------------------------------------\n * Non-inline + Directive  | YES               | YES                 | NO                  | YES\n * ===========================================================================================================\n *\n * @param name the name of the attribute to find\n * @param attrs the attribute array to examine\n * @param isInlineTemplate true if the node being matched is an inline template (e.g. `*ngFor`)\n * rather than a manually expanded template node (e.g `<ng-template>`).\n * @param isProjectionMode true if we are matching against content projection otherwise we are\n * matching against directives.\n */\nfunction findAttrIndexInNode(name, attrs, isInlineTemplate, isProjectionMode) {\n    if (attrs === null)\n        return -1;\n    let i = 0;\n    if (isProjectionMode || !isInlineTemplate) {\n        let bindingsMode = false;\n        while (i < attrs.length) {\n            const maybeAttrName = attrs[i];\n            if (maybeAttrName === name) {\n                return i;\n            }\n            else if (maybeAttrName === 3 /* AttributeMarker.Bindings */ || maybeAttrName === 6 /* AttributeMarker.I18n */) {\n                bindingsMode = true;\n            }\n            else if (maybeAttrName === 1 /* AttributeMarker.Classes */ || maybeAttrName === 2 /* AttributeMarker.Styles */) {\n                let value = attrs[++i];\n                // We should skip classes here because we have a separate mechanism for\n                // matching classes in projection mode.\n                while (typeof value === 'string') {\n                    value = attrs[++i];\n                }\n                continue;\n            }\n            else if (maybeAttrName === 4 /* AttributeMarker.Template */) {\n                // We do not care about Template attributes in this scenario.\n                break;\n            }\n            else if (maybeAttrName === 0 /* AttributeMarker.NamespaceURI */) {\n                // Skip the whole namespaced attribute and value. This is by design.\n                i += 4;\n                continue;\n            }\n            // In binding mode there are only names, rather than name-value pairs.\n            i += bindingsMode ? 1 : 2;\n        }\n        // We did not match the attribute\n        return -1;\n    }\n    else {\n        return matchTemplateAttribute(attrs, name);\n    }\n}\nfunction isNodeMatchingSelectorList(tNode, selector, isProjectionMode = false) {\n    for (let i = 0; i < selector.length; i++) {\n        if (isNodeMatchingSelector(tNode, selector[i], isProjectionMode)) {\n            return true;\n        }\n    }\n    return false;\n}\nfunction getProjectAsAttrValue(tNode) {\n    const nodeAttrs = tNode.attrs;\n    if (nodeAttrs != null) {\n        const ngProjectAsAttrIdx = nodeAttrs.indexOf(5 /* AttributeMarker.ProjectAs */);\n        // only check for ngProjectAs in attribute names, don't accidentally match attribute's value\n        // (attribute names are stored at even indexes)\n        if ((ngProjectAsAttrIdx & 1) === 0) {\n            return nodeAttrs[ngProjectAsAttrIdx + 1];\n        }\n    }\n    return null;\n}\nfunction getNameOnlyMarkerIndex(nodeAttrs) {\n    for (let i = 0; i < nodeAttrs.length; i++) {\n        const nodeAttr = nodeAttrs[i];\n        if (isNameOnlyAttributeMarker(nodeAttr)) {\n            return i;\n        }\n    }\n    return nodeAttrs.length;\n}\nfunction matchTemplateAttribute(attrs, name) {\n    let i = attrs.indexOf(4 /* AttributeMarker.Template */);\n    if (i > -1) {\n        i++;\n        while (i < attrs.length) {\n            const attr = attrs[i];\n            // Return in case we checked all template attrs and are switching to the next section in the\n            // attrs array (that starts with a number that represents an attribute marker).\n            if (typeof attr === 'number')\n                return -1;\n            if (attr === name)\n                return i;\n            i++;\n        }\n    }\n    return -1;\n}\n/**\n * Checks whether a selector is inside a CssSelectorList\n * @param selector Selector to be checked.\n * @param list List in which to look for the selector.\n */\nfunction isSelectorInSelectorList(selector, list) {\n    selectorListLoop: for (let i = 0; i < list.length; i++) {\n        const currentSelectorInList = list[i];\n        if (selector.length !== currentSelectorInList.length) {\n            continue;\n        }\n        for (let j = 0; j < selector.length; j++) {\n            if (selector[j] !== currentSelectorInList[j]) {\n                continue selectorListLoop;\n            }\n        }\n        return true;\n    }\n    return false;\n}\nfunction maybeWrapInNotSelector(isNegativeMode, chunk) {\n    return isNegativeMode ? ':not(' + chunk.trim() + ')' : chunk;\n}\nfunction stringifyCSSSelector(selector) {\n    let result = selector[0];\n    let i = 1;\n    let mode = 2 /* SelectorFlags.ATTRIBUTE */;\n    let currentChunk = '';\n    let isNegativeMode = false;\n    while (i < selector.length) {\n        let valueOrMarker = selector[i];\n        if (typeof valueOrMarker === 'string') {\n            if (mode & 2 /* SelectorFlags.ATTRIBUTE */) {\n                const attrValue = selector[++i];\n                currentChunk +=\n                    '[' + valueOrMarker + (attrValue.length > 0 ? '=\"' + attrValue + '\"' : '') + ']';\n            }\n            else if (mode & 8 /* SelectorFlags.CLASS */) {\n                currentChunk += '.' + valueOrMarker;\n            }\n            else if (mode & 4 /* SelectorFlags.ELEMENT */) {\n                currentChunk += ' ' + valueOrMarker;\n            }\n        }\n        else {\n            //\n            // Append current chunk to the final result in case we come across SelectorFlag, which\n            // indicates that the previous section of a selector is over. We need to accumulate content\n            // between flags to make sure we wrap the chunk later in :not() selector if needed, e.g.\n            // ```\n            //  ['', Flags.CLASS, '.classA', Flags.CLASS | Flags.NOT, '.classB', '.classC']\n            // ```\n            // should be transformed to `.classA :not(.classB .classC)`.\n            //\n            // Note: for negative selector part, we accumulate content between flags until we find the\n            // next negative flag. This is needed to support a case where `:not()` rule contains more than\n            // one chunk, e.g. the following selector:\n            // ```\n            //  ['', Flags.ELEMENT | Flags.NOT, 'p', Flags.CLASS, 'foo', Flags.CLASS | Flags.NOT, 'bar']\n            // ```\n            // should be stringified to `:not(p.foo) :not(.bar)`\n            //\n            if (currentChunk !== '' && !isPositive(valueOrMarker)) {\n                result += maybeWrapInNotSelector(isNegativeMode, currentChunk);\n                currentChunk = '';\n            }\n            mode = valueOrMarker;\n            // According to CssSelector spec, once we come across `SelectorFlags.NOT` flag, the negative\n            // mode is maintained for remaining chunks of a selector.\n            isNegativeMode = isNegativeMode || !isPositive(mode);\n        }\n        i++;\n    }\n    if (currentChunk !== '') {\n        result += maybeWrapInNotSelector(isNegativeMode, currentChunk);\n    }\n    return result;\n}\n/**\n * Generates string representation of CSS selector in parsed form.\n *\n * ComponentDef and DirectiveDef are generated with the selector in parsed form to avoid doing\n * additional parsing at runtime (for example, for directive matching). However in some cases (for\n * example, while bootstrapping a component), a string version of the selector is required to query\n * for the host element on the page. This function takes the parsed form of a selector and returns\n * its string representation.\n *\n * @param selectorList selector in parsed form\n * @returns string representation of a given selector\n */\nfunction stringifyCSSSelectorList(selectorList) {\n    return selectorList.map(stringifyCSSSelector).join(',');\n}\n/**\n * Extracts attributes and classes information from a given CSS selector.\n *\n * This function is used while creating a component dynamically. In this case, the host element\n * (that is created dynamically) should contain attributes and classes specified in component's CSS\n * selector.\n *\n * @param selector CSS selector in parsed form (in a form of array)\n * @returns object with `attrs` and `classes` fields that contain extracted information\n */\nfunction extractAttrsAndClassesFromSelector(selector) {\n    const attrs = [];\n    const classes = [];\n    let i = 1;\n    let mode = 2 /* SelectorFlags.ATTRIBUTE */;\n    while (i < selector.length) {\n        let valueOrMarker = selector[i];\n        if (typeof valueOrMarker === 'string') {\n            if (mode === 2 /* SelectorFlags.ATTRIBUTE */) {\n                if (valueOrMarker !== '') {\n                    attrs.push(valueOrMarker, selector[++i]);\n                }\n            }\n            else if (mode === 8 /* SelectorFlags.CLASS */) {\n                classes.push(valueOrMarker);\n            }\n        }\n        else {\n            // According to CssSelector spec, once we come across `SelectorFlags.NOT` flag, the negative\n            // mode is maintained for remaining chunks of a selector. Since attributes and classes are\n            // extracted only for \"positive\" part of the selector, we can stop here.\n            if (!isPositive(mode))\n                break;\n            mode = valueOrMarker;\n        }\n        i++;\n    }\n    return { attrs, classes };\n}\n\n/**\n * Create a component definition object.\n *\n *\n * # Example\n * ```\n * class MyComponent {\n *   // Generated by Angular Template Compiler\n *   // [Symbol] syntax will not be supported by TypeScript until v2.7\n *   static ɵcmp = defineComponent({\n *     ...\n *   });\n * }\n * ```\n * @codeGenApi\n */\nfunction ɵɵdefineComponent(componentDefinition) {\n    return noSideEffects(() => {\n        // Initialize ngDevMode. This must be the first statement in ɵɵdefineComponent.\n        // See the `initNgDevMode` docstring for more information.\n        (typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode();\n        const baseDef = getNgDirectiveDef(componentDefinition);\n        const def = {\n            ...baseDef,\n            decls: componentDefinition.decls,\n            vars: componentDefinition.vars,\n            template: componentDefinition.template,\n            consts: componentDefinition.consts || null,\n            ngContentSelectors: componentDefinition.ngContentSelectors,\n            onPush: componentDefinition.changeDetection === ChangeDetectionStrategy.OnPush,\n            directiveDefs: null,\n            pipeDefs: null,\n            dependencies: baseDef.standalone && componentDefinition.dependencies || null,\n            getStandaloneInjector: null,\n            signals: componentDefinition.signals ?? false,\n            data: componentDefinition.data || {},\n            encapsulation: componentDefinition.encapsulation || ViewEncapsulation$1.Emulated,\n            styles: componentDefinition.styles || EMPTY_ARRAY,\n            _: null,\n            schemas: componentDefinition.schemas || null,\n            tView: null,\n            id: '',\n        };\n        initFeatures(def);\n        const dependencies = componentDefinition.dependencies;\n        def.directiveDefs = extractDefListOrFactory(dependencies, /* pipeDef */ false);\n        def.pipeDefs = extractDefListOrFactory(dependencies, /* pipeDef */ true);\n        def.id = getComponentId(def);\n        return def;\n    });\n}\n/**\n * Generated next to NgModules to monkey-patch directive and pipe references onto a component's\n * definition, when generating a direct reference in the component file would otherwise create an\n * import cycle.\n *\n * See [this explanation](https://hackmd.io/Odw80D0pR6yfsOjg_7XCJg?view) for more details.\n *\n * @codeGenApi\n */\nfunction ɵɵsetComponentScope(type, directives, pipes) {\n    const def = type.ɵcmp;\n    def.directiveDefs = extractDefListOrFactory(directives, /* pipeDef */ false);\n    def.pipeDefs = extractDefListOrFactory(pipes, /* pipeDef */ true);\n}\nfunction extractDirectiveDef(type) {\n    return getComponentDef(type) || getDirectiveDef(type);\n}\nfunction nonNull(value) {\n    return value !== null;\n}\n/**\n * @codeGenApi\n */\nfunction ɵɵdefineNgModule(def) {\n    return noSideEffects(() => {\n        const res = {\n            type: def.type,\n            bootstrap: def.bootstrap || EMPTY_ARRAY,\n            declarations: def.declarations || EMPTY_ARRAY,\n            imports: def.imports || EMPTY_ARRAY,\n            exports: def.exports || EMPTY_ARRAY,\n            transitiveCompileScopes: null,\n            schemas: def.schemas || null,\n            id: def.id || null,\n        };\n        return res;\n    });\n}\n/**\n * Adds the module metadata that is necessary to compute the module's transitive scope to an\n * existing module definition.\n *\n * Scope metadata of modules is not used in production builds, so calls to this function can be\n * marked pure to tree-shake it from the bundle, allowing for all referenced declarations\n * to become eligible for tree-shaking as well.\n *\n * @codeGenApi\n */\nfunction ɵɵsetNgModuleScope(type, scope) {\n    return noSideEffects(() => {\n        const ngModuleDef = getNgModuleDef(type, true);\n        ngModuleDef.declarations = scope.declarations || EMPTY_ARRAY;\n        ngModuleDef.imports = scope.imports || EMPTY_ARRAY;\n        ngModuleDef.exports = scope.exports || EMPTY_ARRAY;\n    });\n}\n/**\n * Inverts an inputs or outputs lookup such that the keys, which were the\n * minified keys, are part of the values, and the values are parsed so that\n * the publicName of the property is the new key\n *\n * e.g. for\n *\n * ```\n * class Comp {\n *   @Input()\n *   propName1: string;\n *\n *   @Input('publicName2')\n *   declaredPropName2: number;\n * }\n * ```\n *\n * will be serialized as\n *\n * ```\n * {\n *   propName1: 'propName1',\n *   declaredPropName2: ['publicName2', 'declaredPropName2'],\n * }\n * ```\n *\n * which is than translated by the minifier as:\n *\n * ```\n * {\n *   minifiedPropName1: 'propName1',\n *   minifiedPropName2: ['publicName2', 'declaredPropName2'],\n * }\n * ```\n *\n * becomes: (public name => minifiedName)\n *\n * ```\n * {\n *  'propName1': 'minifiedPropName1',\n *  'publicName2': 'minifiedPropName2',\n * }\n * ```\n *\n * Optionally the function can take `secondary` which will result in: (public name => declared name)\n *\n * ```\n * {\n *  'propName1': 'propName1',\n *  'publicName2': 'declaredPropName2',\n * }\n * ```\n *\n\n */\nfunction invertObject(obj, secondary) {\n    if (obj == null)\n        return EMPTY_OBJ;\n    const newLookup = {};\n    for (const minifiedKey in obj) {\n        if (obj.hasOwnProperty(minifiedKey)) {\n            let publicName = obj[minifiedKey];\n            let declaredName = publicName;\n            if (Array.isArray(publicName)) {\n                declaredName = publicName[1];\n                publicName = publicName[0];\n            }\n            newLookup[publicName] = minifiedKey;\n            if (secondary) {\n                (secondary[publicName] = declaredName);\n            }\n        }\n    }\n    return newLookup;\n}\n/**\n * Create a directive definition object.\n *\n * # Example\n * ```ts\n * class MyDirective {\n *   // Generated by Angular Template Compiler\n *   // [Symbol] syntax will not be supported by TypeScript until v2.7\n *   static ɵdir = ɵɵdefineDirective({\n *     ...\n *   });\n * }\n * ```\n *\n * @codeGenApi\n */\nfunction ɵɵdefineDirective(directiveDefinition) {\n    return noSideEffects(() => {\n        const def = getNgDirectiveDef(directiveDefinition);\n        initFeatures(def);\n        return def;\n    });\n}\n/**\n * Create a pipe definition object.\n *\n * # Example\n * ```\n * class MyPipe implements PipeTransform {\n *   // Generated by Angular Template Compiler\n *   static ɵpipe = definePipe({\n *     ...\n *   });\n * }\n * ```\n * @param pipeDef Pipe definition generated by the compiler\n *\n * @codeGenApi\n */\nfunction ɵɵdefinePipe(pipeDef) {\n    return {\n        type: pipeDef.type,\n        name: pipeDef.name,\n        factory: null,\n        pure: pipeDef.pure !== false,\n        standalone: pipeDef.standalone === true,\n        onDestroy: pipeDef.type.prototype.ngOnDestroy || null\n    };\n}\n/**\n * The following getter methods retrieve the definition from the type. Currently the retrieval\n * honors inheritance, but in the future we may change the rule to require that definitions are\n * explicit. This would require some sort of migration strategy.\n */\nfunction getComponentDef(type) {\n    return type[NG_COMP_DEF] || null;\n}\nfunction getDirectiveDef(type) {\n    return type[NG_DIR_DEF] || null;\n}\nfunction getPipeDef$1(type) {\n    return type[NG_PIPE_DEF] || null;\n}\n/**\n * Checks whether a given Component, Directive or Pipe is marked as standalone.\n * This will return false if passed anything other than a Component, Directive, or Pipe class\n * See [this guide](/guide/standalone-components) for additional information:\n *\n * @param type A reference to a Component, Directive or Pipe.\n * @publicApi\n */\nfunction isStandalone(type) {\n    const def = getComponentDef(type) || getDirectiveDef(type) || getPipeDef$1(type);\n    return def !== null ? def.standalone : false;\n}\nfunction getNgModuleDef(type, throwNotFound) {\n    const ngModuleDef = type[NG_MOD_DEF] || null;\n    if (!ngModuleDef && throwNotFound === true) {\n        throw new Error(`Type ${stringify(type)} does not have 'ɵmod' property.`);\n    }\n    return ngModuleDef;\n}\nfunction getNgDirectiveDef(directiveDefinition) {\n    const declaredInputs = {};\n    return {\n        type: directiveDefinition.type,\n        providersResolver: null,\n        factory: null,\n        hostBindings: directiveDefinition.hostBindings || null,\n        hostVars: directiveDefinition.hostVars || 0,\n        hostAttrs: directiveDefinition.hostAttrs || null,\n        contentQueries: directiveDefinition.contentQueries || null,\n        declaredInputs,\n        inputTransforms: null,\n        inputConfig: directiveDefinition.inputs || EMPTY_OBJ,\n        exportAs: directiveDefinition.exportAs || null,\n        standalone: directiveDefinition.standalone === true,\n        signals: directiveDefinition.signals === true,\n        selectors: directiveDefinition.selectors || EMPTY_ARRAY,\n        viewQuery: directiveDefinition.viewQuery || null,\n        features: directiveDefinition.features || null,\n        setInput: null,\n        findHostDirectiveDefs: null,\n        hostDirectives: null,\n        inputs: invertObject(directiveDefinition.inputs, declaredInputs),\n        outputs: invertObject(directiveDefinition.outputs),\n    };\n}\nfunction initFeatures(definition) {\n    definition.features?.forEach((fn) => fn(definition));\n}\nfunction extractDefListOrFactory(dependencies, pipeDef) {\n    if (!dependencies) {\n        return null;\n    }\n    const defExtractor = pipeDef ? getPipeDef$1 : extractDirectiveDef;\n    return () => (typeof dependencies === 'function' ? dependencies() : dependencies)\n        .map(dep => defExtractor(dep))\n        .filter(nonNull);\n}\n/**\n * A map that contains the generated component IDs and type.\n */\nconst GENERATED_COMP_IDS = new Map();\n/**\n * A method can returns a component ID from the component definition using a variant of DJB2 hash\n * algorithm.\n */\nfunction getComponentId(componentDef) {\n    let hash = 0;\n    // We cannot rely solely on the component selector as the same selector can be used in different\n    // modules.\n    //\n    // `componentDef.style` is not used, due to it causing inconsistencies. Ex: when server\n    // component styles has no sourcemaps and browsers do.\n    //\n    // Example:\n    // https://github.com/angular/components/blob/d9f82c8f95309e77a6d82fd574c65871e91354c2/src/material/core/option/option.ts#L248\n    // https://github.com/angular/components/blob/285f46dc2b4c5b127d356cb7c4714b221f03ce50/src/material/legacy-core/option/option.ts#L32\n    const hashSelectors = [\n        componentDef.selectors,\n        componentDef.ngContentSelectors,\n        componentDef.hostVars,\n        componentDef.hostAttrs,\n        componentDef.consts,\n        componentDef.vars,\n        componentDef.decls,\n        componentDef.encapsulation,\n        componentDef.standalone,\n        componentDef.signals,\n        componentDef.exportAs,\n        JSON.stringify(componentDef.inputs),\n        JSON.stringify(componentDef.outputs),\n        // We cannot use 'componentDef.type.name' as the name of the symbol will change and will not\n        // match in the server and browser bundles.\n        Object.getOwnPropertyNames(componentDef.type.prototype),\n        !!componentDef.contentQueries,\n        !!componentDef.viewQuery,\n    ].join('|');\n    for (const char of hashSelectors) {\n        hash = Math.imul(31, hash) + char.charCodeAt(0) << 0;\n    }\n    // Force positive number hash.\n    // 2147483647 = equivalent of Integer.MAX_VALUE.\n    hash += 2147483647 + 1;\n    const compId = 'c' + hash;\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        if (GENERATED_COMP_IDS.has(compId)) {\n            const previousCompDefType = GENERATED_COMP_IDS.get(compId);\n            if (previousCompDefType !== componentDef.type) {\n                console.warn(formatRuntimeError(-912 /* RuntimeErrorCode.COMPONENT_ID_COLLISION */, `Component ID generation collision detected. Components '${previousCompDefType.name}' and '${componentDef.type.name}' with selector '${stringifyCSSSelectorList(componentDef\n                    .selectors)}' generated the same component ID. To fix this, you can change the selector of one of those components or add an extra host attribute to force a different ID.`));\n            }\n        }\n        else {\n            GENERATED_COMP_IDS.set(compId, componentDef.type);\n        }\n    }\n    return compId;\n}\n\n// Below are constants for LView indices to help us look up LView members\n// without having to remember the specific indices.\n// Uglify will inline these when minifying so there shouldn't be a cost.\nconst HOST = 0;\nconst TVIEW = 1;\nconst FLAGS = 2;\nconst PARENT = 3;\nconst NEXT = 4;\nconst DESCENDANT_VIEWS_TO_REFRESH = 5;\nconst T_HOST = 6;\nconst CLEANUP = 7;\nconst CONTEXT = 8;\nconst INJECTOR$1 = 9;\nconst ENVIRONMENT = 10;\nconst RENDERER = 11;\nconst CHILD_HEAD = 12;\nconst CHILD_TAIL = 13;\n// FIXME(misko): Investigate if the three declarations aren't all same thing.\nconst DECLARATION_VIEW = 14;\nconst DECLARATION_COMPONENT_VIEW = 15;\nconst DECLARATION_LCONTAINER = 16;\nconst PREORDER_HOOK_FLAGS = 17;\nconst QUERIES = 18;\nconst ID = 19;\nconst EMBEDDED_VIEW_INJECTOR = 20;\nconst ON_DESTROY_HOOKS = 21;\nconst HYDRATION = 22;\nconst REACTIVE_TEMPLATE_CONSUMER = 23;\nconst REACTIVE_HOST_BINDING_CONSUMER = 24;\n/**\n * Size of LView's header. Necessary to adjust for it when setting slots.\n *\n * IMPORTANT: `HEADER_OFFSET` should only be referred to the in the `ɵɵ*` instructions to translate\n * instruction index into `LView` index. All other indexes should be in the `LView` index space and\n * there should be no need to refer to `HEADER_OFFSET` anywhere else.\n */\nconst HEADER_OFFSET = 25;\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\nconst unusedValueExportToPlacateAjd$4 = 1;\n\n/**\n * Special location which allows easy identification of type. If we have an array which was\n * retrieved from the `LView` and that array has `true` at `TYPE` location, we know it is\n * `LContainer`.\n */\nconst TYPE = 1;\n/**\n * Below are constants for LContainer indices to help us look up LContainer members\n * without having to remember the specific indices.\n * Uglify will inline these when minifying so there shouldn't be a cost.\n */\n/**\n * Flag to signify that this `LContainer` may have transplanted views which need to be change\n * detected. (see: `LView[DECLARATION_COMPONENT_VIEW])`.\n *\n * This flag, once set, is never unset for the `LContainer`. This means that when unset we can skip\n * a lot of work in `refreshEmbeddedViews`. But when set we still need to verify\n * that the `MOVED_VIEWS` are transplanted and on-push.\n */\nconst HAS_TRANSPLANTED_VIEWS = 2;\n// PARENT, NEXT, DESCENDANT_VIEWS_TO_REFRESH are indices 3, 4, and 5\n// As we already have these constants in LView, we don't need to re-create them.\n// T_HOST is index 6\n// We already have this constants in LView, we don't need to re-create it.\nconst NATIVE = 7;\nconst VIEW_REFS = 8;\nconst MOVED_VIEWS = 9;\nconst DEHYDRATED_VIEWS = 10;\n/**\n * Size of LContainer's header. Represents the index after which all views in the\n * container will be inserted. We need to keep a record of current views so we know\n * which views are already in the DOM (and don't need to be re-added) and so we can\n * remove views from the DOM when they are no longer required.\n */\nconst CONTAINER_HEADER_OFFSET = 11;\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\nconst unusedValueExportToPlacateAjd$3 = 1;\n\n/**\n * True if `value` is `LView`.\n * @param value wrapped value of `RNode`, `LView`, `LContainer`\n */\nfunction isLView(value) {\n    return Array.isArray(value) && typeof value[TYPE] === 'object';\n}\n/**\n * True if `value` is `LContainer`.\n * @param value wrapped value of `RNode`, `LView`, `LContainer`\n */\nfunction isLContainer(value) {\n    return Array.isArray(value) && value[TYPE] === true;\n}\nfunction isContentQueryHost(tNode) {\n    return (tNode.flags & 4 /* TNodeFlags.hasContentQuery */) !== 0;\n}\nfunction isComponentHost(tNode) {\n    return tNode.componentOffset > -1;\n}\nfunction isDirectiveHost(tNode) {\n    return (tNode.flags & 1 /* TNodeFlags.isDirectiveHost */) === 1 /* TNodeFlags.isDirectiveHost */;\n}\nfunction isComponentDef(def) {\n    return !!def.template;\n}\nfunction isRootView(target) {\n    return (target[FLAGS] & 512 /* LViewFlags.IsRoot */) !== 0;\n}\nfunction isProjectionTNode(tNode) {\n    return (tNode.type & 16 /* TNodeType.Projection */) === 16 /* TNodeType.Projection */;\n}\nfunction hasI18n(lView) {\n    return (lView[FLAGS] & 32 /* LViewFlags.HasI18n */) === 32 /* LViewFlags.HasI18n */;\n}\n\n// [Assert functions do not constraint type when they are guarded by a truthy\n// expression.](https://github.com/microsoft/TypeScript/issues/37295)\nfunction assertTNodeForLView(tNode, lView) {\n    assertTNodeForTView(tNode, lView[TVIEW]);\n}\nfunction assertTNodeForTView(tNode, tView) {\n    assertTNode(tNode);\n    const tData = tView.data;\n    for (let i = HEADER_OFFSET; i < tData.length; i++) {\n        if (tData[i] === tNode) {\n            return;\n        }\n    }\n    throwError('This TNode does not belong to this TView.');\n}\nfunction assertTNode(tNode) {\n    assertDefined(tNode, 'TNode must be defined');\n    if (!(tNode && typeof tNode === 'object' && tNode.hasOwnProperty('directiveStylingLast'))) {\n        throwError('Not of type TNode, got: ' + tNode);\n    }\n}\nfunction assertTIcu(tIcu) {\n    assertDefined(tIcu, 'Expected TIcu to be defined');\n    if (!(typeof tIcu.currentCaseLViewIndex === 'number')) {\n        throwError('Object is not of TIcu type.');\n    }\n}\nfunction assertComponentType(actual, msg = 'Type passed in is not ComponentType, it does not have \\'ɵcmp\\' property.') {\n    if (!getComponentDef(actual)) {\n        throwError(msg);\n    }\n}\nfunction assertNgModuleType(actual, msg = 'Type passed in is not NgModuleType, it does not have \\'ɵmod\\' property.') {\n    if (!getNgModuleDef(actual)) {\n        throwError(msg);\n    }\n}\nfunction assertCurrentTNodeIsParent(isParent) {\n    assertEqual(isParent, true, 'currentTNode should be a parent');\n}\nfunction assertHasParent(tNode) {\n    assertDefined(tNode, 'currentTNode should exist!');\n    assertDefined(tNode.parent, 'currentTNode should have a parent');\n}\nfunction assertLContainer(value) {\n    assertDefined(value, 'LContainer must be defined');\n    assertEqual(isLContainer(value), true, 'Expecting LContainer');\n}\nfunction assertLViewOrUndefined(value) {\n    value && assertEqual(isLView(value), true, 'Expecting LView or undefined or null');\n}\nfunction assertLView(value) {\n    assertDefined(value, 'LView must be defined');\n    assertEqual(isLView(value), true, 'Expecting LView');\n}\nfunction assertFirstCreatePass(tView, errMessage) {\n    assertEqual(tView.firstCreatePass, true, errMessage || 'Should only be called in first create pass.');\n}\nfunction assertFirstUpdatePass(tView, errMessage) {\n    assertEqual(tView.firstUpdatePass, true, errMessage || 'Should only be called in first update pass.');\n}\n/**\n * This is a basic sanity check that an object is probably a directive def. DirectiveDef is\n * an interface, so we can't do a direct instanceof check.\n */\nfunction assertDirectiveDef(obj) {\n    if (obj.type === undefined || obj.selectors == undefined || obj.inputs === undefined) {\n        throwError(`Expected a DirectiveDef/ComponentDef and this object does not seem to have the expected shape.`);\n    }\n}\nfunction assertIndexInDeclRange(lView, index) {\n    const tView = lView[1];\n    assertBetween(HEADER_OFFSET, tView.bindingStartIndex, index);\n}\nfunction assertIndexInExpandoRange(lView, index) {\n    const tView = lView[1];\n    assertBetween(tView.expandoStartIndex, lView.length, index);\n}\nfunction assertBetween(lower, upper, index) {\n    if (!(lower <= index && index < upper)) {\n        throwError(`Index out of range (expecting ${lower} <= ${index} < ${upper})`);\n    }\n}\nfunction assertProjectionSlots(lView, errMessage) {\n    assertDefined(lView[DECLARATION_COMPONENT_VIEW], 'Component views should exist.');\n    assertDefined(lView[DECLARATION_COMPONENT_VIEW][T_HOST].projection, errMessage ||\n        'Components with projection nodes (<ng-content>) must have projection slots defined.');\n}\nfunction assertParentView(lView, errMessage) {\n    assertDefined(lView, errMessage || 'Component views should always have a parent view (component\\'s host view)');\n}\n/**\n * This is a basic sanity check that the `injectorIndex` seems to point to what looks like a\n * NodeInjector data structure.\n *\n * @param lView `LView` which should be checked.\n * @param injectorIndex index into the `LView` where the `NodeInjector` is expected.\n */\nfunction assertNodeInjector(lView, injectorIndex) {\n    assertIndexInExpandoRange(lView, injectorIndex);\n    assertIndexInExpandoRange(lView, injectorIndex + 8 /* NodeInjectorOffset.PARENT */);\n    assertNumber(lView[injectorIndex + 0], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 1], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 2], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 3], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 4], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 5], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 6], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 7], 'injectorIndex should point to a bloom filter');\n    assertNumber(lView[injectorIndex + 8 /* NodeInjectorOffset.PARENT */], 'injectorIndex should point to parent injector');\n}\n\nfunction getFactoryDef(type, throwNotFound) {\n    const hasFactoryDef = type.hasOwnProperty(NG_FACTORY_DEF);\n    if (!hasFactoryDef && throwNotFound === true && ngDevMode) {\n        throw new Error(`Type ${stringify(type)} does not have 'ɵfac' property.`);\n    }\n    return hasFactoryDef ? type[NG_FACTORY_DEF] : null;\n}\n\n/**\n * Symbol used to tell `Signal`s apart from other functions.\n *\n * This can be used to auto-unwrap signals in various cases, or to auto-wrap non-signal values.\n */\nconst SIGNAL = /* @__PURE__ */ Symbol('SIGNAL');\n/**\n * Checks if the given `value` is a reactive `Signal`.\n *\n * @developerPreview\n */\nfunction isSignal(value) {\n    return typeof value === 'function' && value[SIGNAL] !== undefined;\n}\n/**\n * The default equality function used for `signal` and `computed`, which treats objects and arrays\n * as never equal, and all other primitive values using identity semantics.\n *\n * This allows signals to hold non-primitive values (arrays, objects, other collections) and still\n * propagate change notification upon explicit mutation without identity change.\n *\n * @developerPreview\n */\nfunction defaultEquals(a, b) {\n    // `Object.is` compares two values using identity semantics which is desired behavior for\n    // primitive values. If `Object.is` determines two values to be equal we need to make sure that\n    // those don't represent objects (we want to make sure that 2 objects are always considered\n    // \"unequal\"). The null check is needed for the special case of JavaScript reporting null values\n    // as objects (`typeof null === 'object'`).\n    return (a === null || typeof a !== 'object') && Object.is(a, b);\n}\n\n// Required as the signals library is in a separate package, so we need to explicitly ensure the\n/**\n * The currently active consumer `ReactiveNode`, if running code in a reactive context.\n *\n * Change this via `setActiveConsumer`.\n */\nlet activeConsumer = null;\nlet inNotificationPhase = false;\nfunction setActiveConsumer(consumer) {\n    const prev = activeConsumer;\n    activeConsumer = consumer;\n    return prev;\n}\nconst REACTIVE_NODE = {\n    version: 0,\n    dirty: false,\n    producerNode: undefined,\n    producerLastReadVersion: undefined,\n    producerIndexOfThis: undefined,\n    nextProducerIndex: 0,\n    liveConsumerNode: undefined,\n    liveConsumerIndexOfThis: undefined,\n    consumerAllowSignalWrites: false,\n    consumerIsAlwaysLive: false,\n    producerMustRecompute: () => false,\n    producerRecomputeValue: () => { },\n    consumerMarkedDirty: () => { },\n};\n/**\n * Called by implementations when a producer's signal is read.\n */\nfunction producerAccessed(node) {\n    if (inNotificationPhase) {\n        throw new Error(typeof ngDevMode !== 'undefined' && ngDevMode ?\n            `Assertion error: signal read during notification phase` :\n            '');\n    }\n    if (activeConsumer === null) {\n        // Accessed outside of a reactive context, so nothing to record.\n        return;\n    }\n    // This producer is the `idx`th dependency of `activeConsumer`.\n    const idx = activeConsumer.nextProducerIndex++;\n    assertConsumerNode(activeConsumer);\n    if (idx < activeConsumer.producerNode.length && activeConsumer.producerNode[idx] !== node) {\n        // There's been a change in producers since the last execution of `activeConsumer`.\n        // `activeConsumer.producerNode[idx]` holds a stale dependency which will be be removed and\n        // replaced with `this`.\n        //\n        // If `activeConsumer` isn't live, then this is a no-op, since we can replace the producer in\n        // `activeConsumer.producerNode` directly. However, if `activeConsumer` is live, then we need\n        // to remove it from the stale producer's `liveConsumer`s.\n        if (consumerIsLive(activeConsumer)) {\n            const staleProducer = activeConsumer.producerNode[idx];\n            producerRemoveLiveConsumerAtIndex(staleProducer, activeConsumer.producerIndexOfThis[idx]);\n            // At this point, the only record of `staleProducer` is the reference at\n            // `activeConsumer.producerNode[idx]` which will be overwritten below.\n        }\n    }\n    if (activeConsumer.producerNode[idx] !== node) {\n        // We're a new dependency of the consumer (at `idx`).\n        activeConsumer.producerNode[idx] = node;\n        // If the active consumer is live, then add it as a live consumer. If not, then use 0 as a\n        // placeholder value.\n        activeConsumer.producerIndexOfThis[idx] =\n            consumerIsLive(activeConsumer) ? producerAddLiveConsumer(node, activeConsumer, idx) : 0;\n    }\n    activeConsumer.producerLastReadVersion[idx] = node.version;\n}\n/**\n * Ensure this producer's `version` is up-to-date.\n */\nfunction producerUpdateValueVersion(node) {\n    if (consumerIsLive(node) && !node.dirty) {\n        // A live consumer will be marked dirty by producers, so a clean state means that its version\n        // is guaranteed to be up-to-date.\n        return;\n    }\n    if (!node.producerMustRecompute(node) && !consumerPollProducersForChange(node)) {\n        // None of our producers report a change since the last time they were read, so no\n        // recomputation of our value is necessary, and we can consider ourselves clean.\n        node.dirty = false;\n        return;\n    }\n    node.producerRecomputeValue(node);\n    // After recomputing the value, we're no longer dirty.\n    node.dirty = false;\n}\n/**\n * Propagate a dirty notification to live consumers of this producer.\n */\nfunction producerNotifyConsumers(node) {\n    if (node.liveConsumerNode === undefined) {\n        return;\n    }\n    // Prevent signal reads when we're updating the graph\n    const prev = inNotificationPhase;\n    inNotificationPhase = true;\n    try {\n        for (const consumer of node.liveConsumerNode) {\n            if (!consumer.dirty) {\n                consumerMarkDirty(consumer);\n            }\n        }\n    }\n    finally {\n        inNotificationPhase = prev;\n    }\n}\n/**\n * Whether this `ReactiveNode` in its producer capacity is currently allowed to initiate updates,\n * based on the current consumer context.\n */\nfunction producerUpdatesAllowed() {\n    return activeConsumer?.consumerAllowSignalWrites !== false;\n}\nfunction consumerMarkDirty(node) {\n    node.dirty = true;\n    producerNotifyConsumers(node);\n    node.consumerMarkedDirty?.(node);\n}\n/**\n * Prepare this consumer to run a computation in its reactive context.\n *\n * Must be called by subclasses which represent reactive computations, before those computations\n * begin.\n */\nfunction consumerBeforeComputation(node) {\n    node && (node.nextProducerIndex = 0);\n    return setActiveConsumer(node);\n}\n/**\n * Finalize this consumer's state after a reactive computation has run.\n *\n * Must be called by subclasses which represent reactive computations, after those computations\n * have finished.\n */\nfunction consumerAfterComputation(node, prevConsumer) {\n    setActiveConsumer(prevConsumer);\n    if (!node || node.producerNode === undefined || node.producerIndexOfThis === undefined ||\n        node.producerLastReadVersion === undefined) {\n        return;\n    }\n    if (consumerIsLive(node)) {\n        // For live consumers, we need to remove the producer -> consumer edge for any stale producers\n        // which weren't dependencies after the recomputation.\n        for (let i = node.nextProducerIndex; i < node.producerNode.length; i++) {\n            producerRemoveLiveConsumerAtIndex(node.producerNode[i], node.producerIndexOfThis[i]);\n        }\n    }\n    // Truncate the producer tracking arrays.\n    // Perf note: this is essentially truncating the length to `node.nextProducerIndex`, but\n    // benchmarking has shown that individual pop operations are faster.\n    while (node.producerNode.length > node.nextProducerIndex) {\n        node.producerNode.pop();\n        node.producerLastReadVersion.pop();\n        node.producerIndexOfThis.pop();\n    }\n}\n/**\n * Determine whether this consumer has any dependencies which have changed since the last time\n * they were read.\n */\nfunction consumerPollProducersForChange(node) {\n    assertConsumerNode(node);\n    // Poll producers for change.\n    for (let i = 0; i < node.producerNode.length; i++) {\n        const producer = node.producerNode[i];\n        const seenVersion = node.producerLastReadVersion[i];\n        // First check the versions. A mismatch means that the producer's value is known to have\n        // changed since the last time we read it.\n        if (seenVersion !== producer.version) {\n            return true;\n        }\n        // The producer's version is the same as the last time we read it, but it might itself be\n        // stale. Force the producer to recompute its version (calculating a new value if necessary).\n        producerUpdateValueVersion(producer);\n        // Now when we do this check, `producer.version` is guaranteed to be up to date, so if the\n        // versions still match then it has not changed since the last time we read it.\n        if (seenVersion !== producer.version) {\n            return true;\n        }\n    }\n    return false;\n}\n/**\n * Disconnect this consumer from the graph.\n */\nfunction consumerDestroy(node) {\n    assertConsumerNode(node);\n    if (consumerIsLive(node)) {\n        // Drop all connections from the graph to this node.\n        for (let i = 0; i < node.producerNode.length; i++) {\n            producerRemoveLiveConsumerAtIndex(node.producerNode[i], node.producerIndexOfThis[i]);\n        }\n    }\n    // Truncate all the arrays to drop all connection from this node to the graph.\n    node.producerNode.length = node.producerLastReadVersion.length = node.producerIndexOfThis.length =\n        0;\n    if (node.liveConsumerNode) {\n        node.liveConsumerNode.length = node.liveConsumerIndexOfThis.length = 0;\n    }\n}\n/**\n * Add `consumer` as a live consumer of this node.\n *\n * Note that this operation is potentially transitive. If this node becomes live, then it becomes\n * a live consumer of all of its current producers.\n */\nfunction producerAddLiveConsumer(node, consumer, indexOfThis) {\n    assertProducerNode(node);\n    assertConsumerNode(node);\n    if (node.liveConsumerNode.length === 0) {\n        // When going from 0 to 1 live consumers, we become a live consumer to our producers.\n        for (let i = 0; i < node.producerNode.length; i++) {\n            node.producerIndexOfThis[i] = producerAddLiveConsumer(node.producerNode[i], node, i);\n        }\n    }\n    node.liveConsumerIndexOfThis.push(indexOfThis);\n    return node.liveConsumerNode.push(consumer) - 1;\n}\n/**\n * Remove the live consumer at `idx`.\n */\nfunction producerRemoveLiveConsumerAtIndex(node, idx) {\n    assertProducerNode(node);\n    assertConsumerNode(node);\n    if (typeof ngDevMode !== 'undefined' && ngDevMode && idx >= node.liveConsumerNode.length) {\n        throw new Error(`Assertion error: active consumer index ${idx} is out of bounds of ${node.liveConsumerNode.length} consumers)`);\n    }\n    if (node.liveConsumerNode.length === 1) {\n        // When removing the last live consumer, we will no longer be live. We need to remove\n        // ourselves from our producers' tracking (which may cause consumer-producers to lose\n        // liveness as well).\n        for (let i = 0; i < node.producerNode.length; i++) {\n            producerRemoveLiveConsumerAtIndex(node.producerNode[i], node.producerIndexOfThis[i]);\n        }\n    }\n    // Move the last value of `liveConsumers` into `idx`. Note that if there's only a single\n    // live consumer, this is a no-op.\n    const lastIdx = node.liveConsumerNode.length - 1;\n    node.liveConsumerNode[idx] = node.liveConsumerNode[lastIdx];\n    node.liveConsumerIndexOfThis[idx] = node.liveConsumerIndexOfThis[lastIdx];\n    // Truncate the array.\n    node.liveConsumerNode.length--;\n    node.liveConsumerIndexOfThis.length--;\n    // If the index is still valid, then we need to fix the index pointer from the producer to this\n    // consumer, and update it from `lastIdx` to `idx` (accounting for the move above).\n    if (idx < node.liveConsumerNode.length) {\n        const idxProducer = node.liveConsumerIndexOfThis[idx];\n        const consumer = node.liveConsumerNode[idx];\n        assertConsumerNode(consumer);\n        consumer.producerIndexOfThis[idxProducer] = idx;\n    }\n}\nfunction consumerIsLive(node) {\n    return node.consumerIsAlwaysLive || (node?.liveConsumerNode?.length ?? 0) > 0;\n}\nfunction assertConsumerNode(node) {\n    node.producerNode ??= [];\n    node.producerIndexOfThis ??= [];\n    node.producerLastReadVersion ??= [];\n}\nfunction assertProducerNode(node) {\n    node.liveConsumerNode ??= [];\n    node.liveConsumerIndexOfThis ??= [];\n}\n\n/**\n * Create a computed `Signal` which derives a reactive value from an expression.\n *\n * @developerPreview\n */\nfunction computed(computation, options) {\n    const node = Object.create(COMPUTED_NODE);\n    node.computation = computation;\n    options?.equal && (node.equal = options.equal);\n    const computed = () => {\n        // Check if the value needs updating before returning it.\n        producerUpdateValueVersion(node);\n        // Record that someone looked at this signal.\n        producerAccessed(node);\n        if (node.value === ERRORED) {\n            throw node.error;\n        }\n        return node.value;\n    };\n    computed[SIGNAL] = node;\n    return computed;\n}\n/**\n * A dedicated symbol used before a computed value has been calculated for the first time.\n * Explicitly typed as `any` so we can use it as signal's value.\n */\nconst UNSET = /* @__PURE__ */ Symbol('UNSET');\n/**\n * A dedicated symbol used in place of a computed signal value to indicate that a given computation\n * is in progress. Used to detect cycles in computation chains.\n * Explicitly typed as `any` so we can use it as signal's value.\n */\nconst COMPUTING = /* @__PURE__ */ Symbol('COMPUTING');\n/**\n * A dedicated symbol used in place of a computed signal value to indicate that a given computation\n * failed. The thrown error is cached until the computation gets dirty again.\n * Explicitly typed as `any` so we can use it as signal's value.\n */\nconst ERRORED = /* @__PURE__ */ Symbol('ERRORED');\n// Note: Using an IIFE here to ensure that the spread assignment is not considered\n// a side-effect, ending up preserving `COMPUTED_NODE` and `REACTIVE_NODE`.\n// TODO: remove when https://github.com/evanw/esbuild/issues/3392 is resolved.\nconst COMPUTED_NODE = /* @__PURE__ */ (() => {\n    return {\n        ...REACTIVE_NODE,\n        value: UNSET,\n        dirty: true,\n        error: null,\n        equal: defaultEquals,\n        producerMustRecompute(node) {\n            // Force a recomputation if there's no current value, or if the current value is in the\n            // process of being calculated (which should throw an error).\n            return node.value === UNSET || node.value === COMPUTING;\n        },\n        producerRecomputeValue(node) {\n            if (node.value === COMPUTING) {\n                // Our computation somehow led to a cyclic read of itself.\n                throw new Error('Detected cycle in computations.');\n            }\n            const oldValue = node.value;\n            node.value = COMPUTING;\n            const prevConsumer = consumerBeforeComputation(node);\n            let newValue;\n            try {\n                newValue = node.computation();\n            }\n            catch (err) {\n                newValue = ERRORED;\n                node.error = err;\n            }\n            finally {\n                consumerAfterComputation(node, prevConsumer);\n            }\n            if (oldValue !== UNSET && oldValue !== ERRORED && newValue !== ERRORED &&\n                node.equal(oldValue, newValue)) {\n                // No change to `valueVersion` - old and new values are\n                // semantically equivalent.\n                node.value = oldValue;\n                return;\n            }\n            node.value = newValue;\n            node.version++;\n        },\n    };\n})();\n\nfunction defaultThrowError() {\n    throw new Error();\n}\nlet throwInvalidWriteToSignalErrorFn = defaultThrowError;\nfunction throwInvalidWriteToSignalError() {\n    throwInvalidWriteToSignalErrorFn();\n}\nfunction setThrowInvalidWriteToSignalError(fn) {\n    throwInvalidWriteToSignalErrorFn = fn;\n}\n\n/**\n * If set, called after `WritableSignal`s are updated.\n *\n * This hook can be used to achieve various effects, such as running effects synchronously as part\n * of setting a signal.\n */\nlet postSignalSetFn = null;\n/**\n * Create a `Signal` that can be set or updated directly.\n *\n * @developerPreview\n */\nfunction signal(initialValue, options) {\n    const node = Object.create(SIGNAL_NODE);\n    node.value = initialValue;\n    options?.equal && (node.equal = options.equal);\n    function signalFn() {\n        producerAccessed(node);\n        return node.value;\n    }\n    signalFn.set = signalSetFn;\n    signalFn.update = signalUpdateFn;\n    signalFn.mutate = signalMutateFn;\n    signalFn.asReadonly = signalAsReadonlyFn;\n    signalFn[SIGNAL] = node;\n    return signalFn;\n}\nfunction setPostSignalSetFn(fn) {\n    const prev = postSignalSetFn;\n    postSignalSetFn = fn;\n    return prev;\n}\n// Note: Using an IIFE here to ensure that the spread assignment is not considered\n// a side-effect, ending up preserving `COMPUTED_NODE` and `REACTIVE_NODE`.\n// TODO: remove when https://github.com/evanw/esbuild/issues/3392 is resolved.\nconst SIGNAL_NODE = /* @__PURE__ */ (() => {\n    return {\n        ...REACTIVE_NODE,\n        equal: defaultEquals,\n        readonlyFn: undefined,\n    };\n})();\nfunction signalValueChanged(node) {\n    node.version++;\n    producerNotifyConsumers(node);\n    postSignalSetFn?.();\n}\nfunction signalSetFn(newValue) {\n    const node = this[SIGNAL];\n    if (!producerUpdatesAllowed()) {\n        throwInvalidWriteToSignalError();\n    }\n    if (!node.equal(node.value, newValue)) {\n        node.value = newValue;\n        signalValueChanged(node);\n    }\n}\nfunction signalUpdateFn(updater) {\n    if (!producerUpdatesAllowed()) {\n        throwInvalidWriteToSignalError();\n    }\n    signalSetFn.call(this, updater(this[SIGNAL].value));\n}\nfunction signalMutateFn(mutator) {\n    const node = this[SIGNAL];\n    if (!producerUpdatesAllowed()) {\n        throwInvalidWriteToSignalError();\n    }\n    // Mutate bypasses equality checks as it's by definition changing the value.\n    mutator(node.value);\n    signalValueChanged(node);\n}\nfunction signalAsReadonlyFn() {\n    const node = this[SIGNAL];\n    if (node.readonlyFn === undefined) {\n        const readonlyFn = () => this();\n        readonlyFn[SIGNAL] = node;\n        node.readonlyFn = readonlyFn;\n    }\n    return node.readonlyFn;\n}\n\n/**\n * Execute an arbitrary function in a non-reactive (non-tracking) context. The executed function\n * can, optionally, return a value.\n *\n * @developerPreview\n */\nfunction untracked(nonReactiveReadsFn) {\n    const prevConsumer = setActiveConsumer(null);\n    // We are not trying to catch any particular errors here, just making sure that the consumers\n    // stack is restored in case of errors.\n    try {\n        return nonReactiveReadsFn();\n    }\n    finally {\n        setActiveConsumer(prevConsumer);\n    }\n}\n\nfunction watch(fn, schedule, allowSignalWrites) {\n    const node = Object.create(WATCH_NODE);\n    if (allowSignalWrites) {\n        node.consumerAllowSignalWrites = true;\n    }\n    node.fn = fn;\n    node.schedule = schedule;\n    const registerOnCleanup = (cleanupFn) => {\n        node.cleanupFn = cleanupFn;\n    };\n    const run = () => {\n        node.dirty = false;\n        if (node.hasRun && !consumerPollProducersForChange(node)) {\n            return;\n        }\n        node.hasRun = true;\n        const prevConsumer = consumerBeforeComputation(node);\n        try {\n            node.cleanupFn();\n            node.cleanupFn = NOOP_CLEANUP_FN;\n            node.fn(registerOnCleanup);\n        }\n        finally {\n            consumerAfterComputation(node, prevConsumer);\n        }\n    };\n    node.ref = {\n        notify: () => consumerMarkDirty(node),\n        run,\n        cleanup: () => node.cleanupFn(),\n    };\n    return node.ref;\n}\nconst NOOP_CLEANUP_FN = () => { };\n// Note: Using an IIFE here to ensure that the spread assignment is not considered\n// a side-effect, ending up preserving `COMPUTED_NODE` and `REACTIVE_NODE`.\n// TODO: remove when https://github.com/evanw/esbuild/issues/3392 is resolved.\nconst WATCH_NODE = /* @__PURE__ */ (() => {\n    return {\n        ...REACTIVE_NODE,\n        consumerIsAlwaysLive: true,\n        consumerAllowSignalWrites: false,\n        consumerMarkedDirty: (node) => {\n            node.schedule(node.ref);\n        },\n        hasRun: false,\n        cleanupFn: NOOP_CLEANUP_FN,\n    };\n})();\n\nfunction setAlternateWeakRefImpl(impl) {\n    // TODO: remove this function\n}\n\n/**\n * Represents a basic change from a previous to a new value for a single\n * property on a directive instance. Passed as a value in a\n * {@link SimpleChanges} object to the `ngOnChanges` hook.\n *\n * @see {@link OnChanges}\n *\n * @publicApi\n */\nclass SimpleChange {\n    constructor(previousValue, currentValue, firstChange) {\n        this.previousValue = previousValue;\n        this.currentValue = currentValue;\n        this.firstChange = firstChange;\n    }\n    /**\n     * Check whether the new value is the first value assigned.\n     */\n    isFirstChange() {\n        return this.firstChange;\n    }\n}\n\n/**\n * The NgOnChangesFeature decorates a component with support for the ngOnChanges\n * lifecycle hook, so it should be included in any component that implements\n * that hook.\n *\n * If the component or directive uses inheritance, the NgOnChangesFeature MUST\n * be included as a feature AFTER {@link InheritDefinitionFeature}, otherwise\n * inherited properties will not be propagated to the ngOnChanges lifecycle\n * hook.\n *\n * Example usage:\n *\n * ```\n * static ɵcmp = defineComponent({\n *   ...\n *   inputs: {name: 'publicName'},\n *   features: [NgOnChangesFeature]\n * });\n * ```\n *\n * @codeGenApi\n */\nfunction ɵɵNgOnChangesFeature() {\n    return NgOnChangesFeatureImpl;\n}\nfunction NgOnChangesFeatureImpl(definition) {\n    if (definition.type.prototype.ngOnChanges) {\n        definition.setInput = ngOnChangesSetInput;\n    }\n    return rememberChangeHistoryAndInvokeOnChangesHook;\n}\n// This option ensures that the ngOnChanges lifecycle hook will be inherited\n// from superclasses (in InheritDefinitionFeature).\n/** @nocollapse */\n// tslint:disable-next-line:no-toplevel-property-access\nɵɵNgOnChangesFeature.ngInherit = true;\n/**\n * This is a synthetic lifecycle hook which gets inserted into `TView.preOrderHooks` to simulate\n * `ngOnChanges`.\n *\n * The hook reads the `NgSimpleChangesStore` data from the component instance and if changes are\n * found it invokes `ngOnChanges` on the component instance.\n *\n * @param this Component instance. Because this function gets inserted into `TView.preOrderHooks`,\n *     it is guaranteed to be called with component instance.\n */\nfunction rememberChangeHistoryAndInvokeOnChangesHook() {\n    const simpleChangesStore = getSimpleChangesStore(this);\n    const current = simpleChangesStore?.current;\n    if (current) {\n        const previous = simpleChangesStore.previous;\n        if (previous === EMPTY_OBJ) {\n            simpleChangesStore.previous = current;\n        }\n        else {\n            // New changes are copied to the previous store, so that we don't lose history for inputs\n            // which were not changed this time\n            for (let key in current) {\n                previous[key] = current[key];\n            }\n        }\n        simpleChangesStore.current = null;\n        this.ngOnChanges(current);\n    }\n}\nfunction ngOnChangesSetInput(instance, value, publicName, privateName) {\n    const declaredName = this.declaredInputs[publicName];\n    ngDevMode && assertString(declaredName, 'Name of input in ngOnChanges has to be a string');\n    const simpleChangesStore = getSimpleChangesStore(instance) ||\n        setSimpleChangesStore(instance, { previous: EMPTY_OBJ, current: null });\n    const current = simpleChangesStore.current || (simpleChangesStore.current = {});\n    const previous = simpleChangesStore.previous;\n    const previousChange = previous[declaredName];\n    current[declaredName] = new SimpleChange(previousChange && previousChange.currentValue, value, previous === EMPTY_OBJ);\n    instance[privateName] = value;\n}\nconst SIMPLE_CHANGES_STORE = '__ngSimpleChanges__';\nfunction getSimpleChangesStore(instance) {\n    return instance[SIMPLE_CHANGES_STORE] || null;\n}\nfunction setSimpleChangesStore(instance, store) {\n    return instance[SIMPLE_CHANGES_STORE] = store;\n}\n\nlet profilerCallback = null;\n/**\n * Sets the callback function which will be invoked before and after performing certain actions at\n * runtime (for example, before and after running change detection).\n *\n * Warning: this function is *INTERNAL* and should not be relied upon in application's code.\n * The contract of the function might be changed in any release and/or the function can be removed\n * completely.\n *\n * @param profiler function provided by the caller or null value to disable profiling.\n */\nconst setProfiler = (profiler) => {\n    profilerCallback = profiler;\n};\n/**\n * Profiler function which wraps user code executed by the runtime.\n *\n * @param event ProfilerEvent corresponding to the execution context\n * @param instance component instance\n * @param hookOrListener lifecycle hook function or output listener. The value depends on the\n *  execution context\n * @returns\n */\nconst profiler = function (event, instance, hookOrListener) {\n    if (profilerCallback != null /* both `null` and `undefined` */) {\n        profilerCallback(event, instance, hookOrListener);\n    }\n};\n\nconst SVG_NAMESPACE = 'svg';\nconst MATH_ML_NAMESPACE = 'math';\n\n/**\n * For efficiency reasons we often put several different data types (`RNode`, `LView`, `LContainer`)\n * in same location in `LView`. This is because we don't want to pre-allocate space for it\n * because the storage is sparse. This file contains utilities for dealing with such data types.\n *\n * How do we know what is stored at a given location in `LView`.\n * - `Array.isArray(value) === false` => `RNode` (The normal storage value)\n * - `Array.isArray(value) === true` => then the `value[0]` represents the wrapped value.\n *   - `typeof value[TYPE] === 'object'` => `LView`\n *      - This happens when we have a component at a given location\n *   - `typeof value[TYPE] === true` => `LContainer`\n *      - This happens when we have `LContainer` binding at a given location.\n *\n *\n * NOTE: it is assumed that `Array.isArray` and `typeof` operations are very efficient.\n */\n/**\n * Returns `RNode`.\n * @param value wrapped value of `RNode`, `LView`, `LContainer`\n */\nfunction unwrapRNode(value) {\n    while (Array.isArray(value)) {\n        value = value[HOST];\n    }\n    return value;\n}\n/**\n * Returns `LView` or `null` if not found.\n * @param value wrapped value of `RNode`, `LView`, `LContainer`\n */\nfunction unwrapLView(value) {\n    while (Array.isArray(value)) {\n        // This check is same as `isLView()` but we don't call at as we don't want to call\n        // `Array.isArray()` twice and give JITer more work for inlining.\n        if (typeof value[TYPE] === 'object')\n            return value;\n        value = value[HOST];\n    }\n    return null;\n}\n/**\n * Retrieves an element value from the provided `viewData`, by unwrapping\n * from any containers, component views, or style contexts.\n */\nfunction getNativeByIndex(index, lView) {\n    ngDevMode && assertIndexInRange(lView, index);\n    ngDevMode && assertGreaterThanOrEqual(index, HEADER_OFFSET, 'Expected to be past HEADER_OFFSET');\n    return unwrapRNode(lView[index]);\n}\n/**\n * Retrieve an `RNode` for a given `TNode` and `LView`.\n *\n * This function guarantees in dev mode to retrieve a non-null `RNode`.\n *\n * @param tNode\n * @param lView\n */\nfunction getNativeByTNode(tNode, lView) {\n    ngDevMode && assertTNodeForLView(tNode, lView);\n    ngDevMode && assertIndexInRange(lView, tNode.index);\n    const node = unwrapRNode(lView[tNode.index]);\n    return node;\n}\n/**\n * Retrieve an `RNode` or `null` for a given `TNode` and `LView`.\n *\n * Some `TNode`s don't have associated `RNode`s. For example `Projection`\n *\n * @param tNode\n * @param lView\n */\nfunction getNativeByTNodeOrNull(tNode, lView) {\n    const index = tNode === null ? -1 : tNode.index;\n    if (index !== -1) {\n        ngDevMode && assertTNodeForLView(tNode, lView);\n        const node = unwrapRNode(lView[index]);\n        return node;\n    }\n    return null;\n}\n// fixme(misko): The return Type should be `TNode|null`\nfunction getTNode(tView, index) {\n    ngDevMode && assertGreaterThan(index, -1, 'wrong index for TNode');\n    ngDevMode && assertLessThan(index, tView.data.length, 'wrong index for TNode');\n    const tNode = tView.data[index];\n    ngDevMode && tNode !== null && assertTNode(tNode);\n    return tNode;\n}\n/** Retrieves a value from any `LView` or `TData`. */\nfunction load(view, index) {\n    ngDevMode && assertIndexInRange(view, index);\n    return view[index];\n}\nfunction getComponentLViewByIndex(nodeIndex, hostView) {\n    // Could be an LView or an LContainer. If LContainer, unwrap to find LView.\n    ngDevMode && assertIndexInRange(hostView, nodeIndex);\n    const slotValue = hostView[nodeIndex];\n    const lView = isLView(slotValue) ? slotValue : slotValue[HOST];\n    return lView;\n}\n/** Checks whether a given view is in creation mode */\nfunction isCreationMode(view) {\n    return (view[FLAGS] & 4 /* LViewFlags.CreationMode */) === 4 /* LViewFlags.CreationMode */;\n}\n/**\n * Returns a boolean for whether the view is attached to the change detection tree.\n *\n * Note: This determines whether a view should be checked, not whether it's inserted\n * into a container. For that, you'll want `viewAttachedToContainer` below.\n */\nfunction viewAttachedToChangeDetector(view) {\n    return (view[FLAGS] & 128 /* LViewFlags.Attached */) === 128 /* LViewFlags.Attached */;\n}\n/** Returns a boolean for whether the view is attached to a container. */\nfunction viewAttachedToContainer(view) {\n    return isLContainer(view[PARENT]);\n}\nfunction getConstant(consts, index) {\n    if (index === null || index === undefined)\n        return null;\n    ngDevMode && assertIndexInRange(consts, index);\n    return consts[index];\n}\n/**\n * Resets the pre-order hook flags of the view.\n * @param lView the LView on which the flags are reset\n */\nfunction resetPreOrderHookFlags(lView) {\n    lView[PREORDER_HOOK_FLAGS] = 0;\n}\n/**\n * Adds the `RefreshView` flag from the lView and updates DESCENDANT_VIEWS_TO_REFRESH counters of\n * parents.\n */\nfunction markViewForRefresh(lView) {\n    if ((lView[FLAGS] & 1024 /* LViewFlags.RefreshView */) === 0) {\n        lView[FLAGS] |= 1024 /* LViewFlags.RefreshView */;\n        updateViewsToRefresh(lView, 1);\n    }\n}\n/**\n * Removes the `RefreshView` flag from the lView and updates DESCENDANT_VIEWS_TO_REFRESH counters of\n * parents.\n */\nfunction clearViewRefreshFlag(lView) {\n    if (lView[FLAGS] & 1024 /* LViewFlags.RefreshView */) {\n        lView[FLAGS] &= ~1024 /* LViewFlags.RefreshView */;\n        updateViewsToRefresh(lView, -1);\n    }\n}\n/**\n * Updates the `DESCENDANT_VIEWS_TO_REFRESH` counter on the parents of the `LView` as well as the\n * parents above that whose\n *  1. counter goes from 0 to 1, indicating that there is a new child that has a view to refresh\n *  or\n *  2. counter goes from 1 to 0, indicating there are no more descendant views to refresh\n */\nfunction updateViewsToRefresh(lView, amount) {\n    let parent = lView[PARENT];\n    if (parent === null) {\n        return;\n    }\n    parent[DESCENDANT_VIEWS_TO_REFRESH] += amount;\n    let viewOrContainer = parent;\n    parent = parent[PARENT];\n    while (parent !== null &&\n        ((amount === 1 && viewOrContainer[DESCENDANT_VIEWS_TO_REFRESH] === 1) ||\n            (amount === -1 && viewOrContainer[DESCENDANT_VIEWS_TO_REFRESH] === 0))) {\n        parent[DESCENDANT_VIEWS_TO_REFRESH] += amount;\n        viewOrContainer = parent;\n        parent = parent[PARENT];\n    }\n}\n/**\n * Stores a LView-specific destroy callback.\n */\nfunction storeLViewOnDestroy(lView, onDestroyCallback) {\n    if ((lView[FLAGS] & 256 /* LViewFlags.Destroyed */) === 256 /* LViewFlags.Destroyed */) {\n        throw new RuntimeError(911 /* RuntimeErrorCode.VIEW_ALREADY_DESTROYED */, ngDevMode && 'View has already been destroyed.');\n    }\n    if (lView[ON_DESTROY_HOOKS] === null) {\n        lView[ON_DESTROY_HOOKS] = [];\n    }\n    lView[ON_DESTROY_HOOKS].push(onDestroyCallback);\n}\n/**\n * Removes previously registered LView-specific destroy callback.\n */\nfunction removeLViewOnDestroy(lView, onDestroyCallback) {\n    if (lView[ON_DESTROY_HOOKS] === null)\n        return;\n    const destroyCBIdx = lView[ON_DESTROY_HOOKS].indexOf(onDestroyCallback);\n    if (destroyCBIdx !== -1) {\n        lView[ON_DESTROY_HOOKS].splice(destroyCBIdx, 1);\n    }\n}\n\nconst instructionState = {\n    lFrame: createLFrame(null),\n    bindingsEnabled: true,\n    skipHydrationRootTNode: null,\n};\n/**\n * In this mode, any changes in bindings will throw an ExpressionChangedAfterChecked error.\n *\n * Necessary to support ChangeDetectorRef.checkNoChanges().\n *\n * The `checkNoChanges` function is invoked only in ngDevMode=true and verifies that no unintended\n * changes exist in the change detector or its children.\n */\nlet _isInCheckNoChangesMode = false;\n/**\n * Returns true if the instruction state stack is empty.\n *\n * Intended to be called from tests only (tree shaken otherwise).\n */\nfunction specOnlyIsInstructionStateEmpty() {\n    return instructionState.lFrame.parent === null;\n}\nfunction getElementDepthCount() {\n    return instructionState.lFrame.elementDepthCount;\n}\nfunction increaseElementDepthCount() {\n    instructionState.lFrame.elementDepthCount++;\n}\nfunction decreaseElementDepthCount() {\n    instructionState.lFrame.elementDepthCount--;\n}\nfunction getBindingsEnabled() {\n    return instructionState.bindingsEnabled;\n}\n/**\n * Returns true if currently inside a skip hydration block.\n * @returns boolean\n */\nfunction isInSkipHydrationBlock$1() {\n    return instructionState.skipHydrationRootTNode !== null;\n}\n/**\n * Returns true if this is the root TNode of the skip hydration block.\n * @param tNode the current TNode\n * @returns boolean\n */\nfunction isSkipHydrationRootTNode(tNode) {\n    return instructionState.skipHydrationRootTNode === tNode;\n}\n/**\n * Enables directive matching on elements.\n *\n *  * Example:\n * ```\n * <my-comp my-directive>\n *   Should match component / directive.\n * </my-comp>\n * <div ngNonBindable>\n *   <!-- ɵɵdisableBindings() -->\n *   <my-comp my-directive>\n *     Should not match component / directive because we are in ngNonBindable.\n *   </my-comp>\n *   <!-- ɵɵenableBindings() -->\n * </div>\n * ```\n *\n * @codeGenApi\n */\nfunction ɵɵenableBindings() {\n    instructionState.bindingsEnabled = true;\n}\n/**\n * Sets a flag to specify that the TNode is in a skip hydration block.\n * @param tNode the current TNode\n */\nfunction enterSkipHydrationBlock(tNode) {\n    instructionState.skipHydrationRootTNode = tNode;\n}\n/**\n * Disables directive matching on element.\n *\n *  * Example:\n * ```\n * <my-comp my-directive>\n *   Should match component / directive.\n * </my-comp>\n * <div ngNonBindable>\n *   <!-- ɵɵdisableBindings() -->\n *   <my-comp my-directive>\n *     Should not match component / directive because we are in ngNonBindable.\n *   </my-comp>\n *   <!-- ɵɵenableBindings() -->\n * </div>\n * ```\n *\n * @codeGenApi\n */\nfunction ɵɵdisableBindings() {\n    instructionState.bindingsEnabled = false;\n}\n/**\n * Clears the root skip hydration node when leaving a skip hydration block.\n */\nfunction leaveSkipHydrationBlock() {\n    instructionState.skipHydrationRootTNode = null;\n}\n/**\n * Return the current `LView`.\n */\nfunction getLView() {\n    return instructionState.lFrame.lView;\n}\n/**\n * Return the current `TView`.\n */\nfunction getTView() {\n    return instructionState.lFrame.tView;\n}\n/**\n * Restores `contextViewData` to the given OpaqueViewState instance.\n *\n * Used in conjunction with the getCurrentView() instruction to save a snapshot\n * of the current view and restore it when listeners are invoked. This allows\n * walking the declaration view tree in listeners to get vars from parent views.\n *\n * @param viewToRestore The OpaqueViewState instance to restore.\n * @returns Context of the restored OpaqueViewState instance.\n *\n * @codeGenApi\n */\nfunction ɵɵrestoreView(viewToRestore) {\n    instructionState.lFrame.contextLView = viewToRestore;\n    return viewToRestore[CONTEXT];\n}\n/**\n * Clears the view set in `ɵɵrestoreView` from memory. Returns the passed in\n * value so that it can be used as a return value of an instruction.\n *\n * @codeGenApi\n */\nfunction ɵɵresetView(value) {\n    instructionState.lFrame.contextLView = null;\n    return value;\n}\nfunction getCurrentTNode() {\n    let currentTNode = getCurrentTNodePlaceholderOk();\n    while (currentTNode !== null && currentTNode.type === 64 /* TNodeType.Placeholder */) {\n        currentTNode = currentTNode.parent;\n    }\n    return currentTNode;\n}\nfunction getCurrentTNodePlaceholderOk() {\n    return instructionState.lFrame.currentTNode;\n}\nfunction getCurrentParentTNode() {\n    const lFrame = instructionState.lFrame;\n    const currentTNode = lFrame.currentTNode;\n    return lFrame.isParent ? currentTNode : currentTNode.parent;\n}\nfunction setCurrentTNode(tNode, isParent) {\n    ngDevMode && tNode && assertTNodeForTView(tNode, instructionState.lFrame.tView);\n    const lFrame = instructionState.lFrame;\n    lFrame.currentTNode = tNode;\n    lFrame.isParent = isParent;\n}\nfunction isCurrentTNodeParent() {\n    return instructionState.lFrame.isParent;\n}\nfunction setCurrentTNodeAsNotParent() {\n    instructionState.lFrame.isParent = false;\n}\nfunction getContextLView() {\n    const contextLView = instructionState.lFrame.contextLView;\n    ngDevMode && assertDefined(contextLView, 'contextLView must be defined.');\n    return contextLView;\n}\nfunction isInCheckNoChangesMode() {\n    !ngDevMode && throwError('Must never be called in production mode');\n    return _isInCheckNoChangesMode;\n}\nfunction setIsInCheckNoChangesMode(mode) {\n    !ngDevMode && throwError('Must never be called in production mode');\n    _isInCheckNoChangesMode = mode;\n}\n// top level variables should not be exported for performance reasons (PERF_NOTES.md)\nfunction getBindingRoot() {\n    const lFrame = instructionState.lFrame;\n    let index = lFrame.bindingRootIndex;\n    if (index === -1) {\n        index = lFrame.bindingRootIndex = lFrame.tView.bindingStartIndex;\n    }\n    return index;\n}\nfunction getBindingIndex() {\n    return instructionState.lFrame.bindingIndex;\n}\nfunction setBindingIndex(value) {\n    return instructionState.lFrame.bindingIndex = value;\n}\nfunction nextBindingIndex() {\n    return instructionState.lFrame.bindingIndex++;\n}\nfunction incrementBindingIndex(count) {\n    const lFrame = instructionState.lFrame;\n    const index = lFrame.bindingIndex;\n    lFrame.bindingIndex = lFrame.bindingIndex + count;\n    return index;\n}\nfunction isInI18nBlock() {\n    return instructionState.lFrame.inI18n;\n}\nfunction setInI18nBlock(isInI18nBlock) {\n    instructionState.lFrame.inI18n = isInI18nBlock;\n}\n/**\n * Set a new binding root index so that host template functions can execute.\n *\n * Bindings inside the host template are 0 index. But because we don't know ahead of time\n * how many host bindings we have we can't pre-compute them. For this reason they are all\n * 0 index and we just shift the root so that they match next available location in the LView.\n *\n * @param bindingRootIndex Root index for `hostBindings`\n * @param currentDirectiveIndex `TData[currentDirectiveIndex]` will point to the current directive\n *        whose `hostBindings` are being processed.\n */\nfunction setBindingRootForHostBindings(bindingRootIndex, currentDirectiveIndex) {\n    const lFrame = instructionState.lFrame;\n    lFrame.bindingIndex = lFrame.bindingRootIndex = bindingRootIndex;\n    setCurrentDirectiveIndex(currentDirectiveIndex);\n}\n/**\n * When host binding is executing this points to the directive index.\n * `TView.data[getCurrentDirectiveIndex()]` is `DirectiveDef`\n * `LView[getCurrentDirectiveIndex()]` is directive instance.\n */\nfunction getCurrentDirectiveIndex() {\n    return instructionState.lFrame.currentDirectiveIndex;\n}\n/**\n * Sets an index of a directive whose `hostBindings` are being processed.\n *\n * @param currentDirectiveIndex `TData` index where current directive instance can be found.\n */\nfunction setCurrentDirectiveIndex(currentDirectiveIndex) {\n    instructionState.lFrame.currentDirectiveIndex = currentDirectiveIndex;\n}\n/**\n * Retrieve the current `DirectiveDef` which is active when `hostBindings` instruction is being\n * executed.\n *\n * @param tData Current `TData` where the `DirectiveDef` will be looked up at.\n */\nfunction getCurrentDirectiveDef(tData) {\n    const currentDirectiveIndex = instructionState.lFrame.currentDirectiveIndex;\n    return currentDirectiveIndex === -1 ? null : tData[currentDirectiveIndex];\n}\nfunction getCurrentQueryIndex() {\n    return instructionState.lFrame.currentQueryIndex;\n}\nfunction setCurrentQueryIndex(value) {\n    instructionState.lFrame.currentQueryIndex = value;\n}\n/**\n * Returns a `TNode` of the location where the current `LView` is declared at.\n *\n * @param lView an `LView` that we want to find parent `TNode` for.\n */\nfunction getDeclarationTNode(lView) {\n    const tView = lView[TVIEW];\n    // Return the declaration parent for embedded views\n    if (tView.type === 2 /* TViewType.Embedded */) {\n        ngDevMode && assertDefined(tView.declTNode, 'Embedded TNodes should have declaration parents.');\n        return tView.declTNode;\n    }\n    // Components don't have `TView.declTNode` because each instance of component could be\n    // inserted in different location, hence `TView.declTNode` is meaningless.\n    // Falling back to `T_HOST` in case we cross component boundary.\n    if (tView.type === 1 /* TViewType.Component */) {\n        return lView[T_HOST];\n    }\n    // Remaining TNode type is `TViewType.Root` which doesn't have a parent TNode.\n    return null;\n}\n/**\n * This is a light weight version of the `enterView` which is needed by the DI system.\n *\n * @param lView `LView` location of the DI context.\n * @param tNode `TNode` for DI context\n * @param flags DI context flags. if `SkipSelf` flag is set than we walk up the declaration\n *     tree from `tNode`  until we find parent declared `TElementNode`.\n * @returns `true` if we have successfully entered DI associated with `tNode` (or with declared\n *     `TNode` if `flags` has  `SkipSelf`). Failing to enter DI implies that no associated\n *     `NodeInjector` can be found and we should instead use `ModuleInjector`.\n *     - If `true` than this call must be fallowed by `leaveDI`\n *     - If `false` than this call failed and we should NOT call `leaveDI`\n */\nfunction enterDI(lView, tNode, flags) {\n    ngDevMode && assertLViewOrUndefined(lView);\n    if (flags & InjectFlags.SkipSelf) {\n        ngDevMode && assertTNodeForTView(tNode, lView[TVIEW]);\n        let parentTNode = tNode;\n        let parentLView = lView;\n        while (true) {\n            ngDevMode && assertDefined(parentTNode, 'Parent TNode should be defined');\n            parentTNode = parentTNode.parent;\n            if (parentTNode === null && !(flags & InjectFlags.Host)) {\n                parentTNode = getDeclarationTNode(parentLView);\n                if (parentTNode === null)\n                    break;\n                // In this case, a parent exists and is definitely an element. So it will definitely\n                // have an existing lView as the declaration view, which is why we can assume it's defined.\n                ngDevMode && assertDefined(parentLView, 'Parent LView should be defined');\n                parentLView = parentLView[DECLARATION_VIEW];\n                // In Ivy there are Comment nodes that correspond to ngIf and NgFor embedded directives\n                // We want to skip those and look only at Elements and ElementContainers to ensure\n                // we're looking at true parent nodes, and not content or other types.\n                if (parentTNode.type & (2 /* TNodeType.Element */ | 8 /* TNodeType.ElementContainer */)) {\n                    break;\n                }\n            }\n            else {\n                break;\n            }\n        }\n        if (parentTNode === null) {\n            // If we failed to find a parent TNode this means that we should use module injector.\n            return false;\n        }\n        else {\n            tNode = parentTNode;\n            lView = parentLView;\n        }\n    }\n    ngDevMode && assertTNodeForLView(tNode, lView);\n    const lFrame = instructionState.lFrame = allocLFrame();\n    lFrame.currentTNode = tNode;\n    lFrame.lView = lView;\n    return true;\n}\n/**\n * Swap the current lView with a new lView.\n *\n * For performance reasons we store the lView in the top level of the module.\n * This way we minimize the number of properties to read. Whenever a new view\n * is entered we have to store the lView for later, and when the view is\n * exited the state has to be restored\n *\n * @param newView New lView to become active\n * @returns the previously active lView;\n */\nfunction enterView(newView) {\n    ngDevMode && assertNotEqual(newView[0], newView[1], '????');\n    ngDevMode && assertLViewOrUndefined(newView);\n    const newLFrame = allocLFrame();\n    if (ngDevMode) {\n        assertEqual(newLFrame.isParent, true, 'Expected clean LFrame');\n        assertEqual(newLFrame.lView, null, 'Expected clean LFrame');\n        assertEqual(newLFrame.tView, null, 'Expected clean LFrame');\n        assertEqual(newLFrame.selectedIndex, -1, 'Expected clean LFrame');\n        assertEqual(newLFrame.elementDepthCount, 0, 'Expected clean LFrame');\n        assertEqual(newLFrame.currentDirectiveIndex, -1, 'Expected clean LFrame');\n        assertEqual(newLFrame.currentNamespace, null, 'Expected clean LFrame');\n        assertEqual(newLFrame.bindingRootIndex, -1, 'Expected clean LFrame');\n        assertEqual(newLFrame.currentQueryIndex, 0, 'Expected clean LFrame');\n    }\n    const tView = newView[TVIEW];\n    instructionState.lFrame = newLFrame;\n    ngDevMode && tView.firstChild && assertTNodeForTView(tView.firstChild, tView);\n    newLFrame.currentTNode = tView.firstChild;\n    newLFrame.lView = newView;\n    newLFrame.tView = tView;\n    newLFrame.contextLView = newView;\n    newLFrame.bindingIndex = tView.bindingStartIndex;\n    newLFrame.inI18n = false;\n}\n/**\n * Allocates next free LFrame. This function tries to reuse the `LFrame`s to lower memory pressure.\n */\nfunction allocLFrame() {\n    const currentLFrame = instructionState.lFrame;\n    const childLFrame = currentLFrame === null ? null : currentLFrame.child;\n    const newLFrame = childLFrame === null ? createLFrame(currentLFrame) : childLFrame;\n    return newLFrame;\n}\nfunction createLFrame(parent) {\n    const lFrame = {\n        currentTNode: null,\n        isParent: true,\n        lView: null,\n        tView: null,\n        selectedIndex: -1,\n        contextLView: null,\n        elementDepthCount: 0,\n        currentNamespace: null,\n        currentDirectiveIndex: -1,\n        bindingRootIndex: -1,\n        bindingIndex: -1,\n        currentQueryIndex: 0,\n        parent: parent,\n        child: null,\n        inI18n: false,\n    };\n    parent !== null && (parent.child = lFrame); // link the new LFrame for reuse.\n    return lFrame;\n}\n/**\n * A lightweight version of leave which is used with DI.\n *\n * This function only resets `currentTNode` and `LView` as those are the only properties\n * used with DI (`enterDI()`).\n *\n * NOTE: This function is reexported as `leaveDI`. However `leaveDI` has return type of `void` where\n * as `leaveViewLight` has `LFrame`. This is so that `leaveViewLight` can be used in `leaveView`.\n */\nfunction leaveViewLight() {\n    const oldLFrame = instructionState.lFrame;\n    instructionState.lFrame = oldLFrame.parent;\n    oldLFrame.currentTNode = null;\n    oldLFrame.lView = null;\n    return oldLFrame;\n}\n/**\n * This is a lightweight version of the `leaveView` which is needed by the DI system.\n *\n * NOTE: this function is an alias so that we can change the type of the function to have `void`\n * return type.\n */\nconst leaveDI = leaveViewLight;\n/**\n * Leave the current `LView`\n *\n * This pops the `LFrame` with the associated `LView` from the stack.\n *\n * IMPORTANT: We must zero out the `LFrame` values here otherwise they will be retained. This is\n * because for performance reasons we don't release `LFrame` but rather keep it for next use.\n */\nfunction leaveView() {\n    const oldLFrame = leaveViewLight();\n    oldLFrame.isParent = true;\n    oldLFrame.tView = null;\n    oldLFrame.selectedIndex = -1;\n    oldLFrame.contextLView = null;\n    oldLFrame.elementDepthCount = 0;\n    oldLFrame.currentDirectiveIndex = -1;\n    oldLFrame.currentNamespace = null;\n    oldLFrame.bindingRootIndex = -1;\n    oldLFrame.bindingIndex = -1;\n    oldLFrame.currentQueryIndex = 0;\n}\nfunction nextContextImpl(level) {\n    const contextLView = instructionState.lFrame.contextLView =\n        walkUpViews(level, instructionState.lFrame.contextLView);\n    return contextLView[CONTEXT];\n}\nfunction walkUpViews(nestingLevel, currentView) {\n    while (nestingLevel > 0) {\n        ngDevMode &&\n            assertDefined(currentView[DECLARATION_VIEW], 'Declaration view should be defined if nesting level is greater than 0.');\n        currentView = currentView[DECLARATION_VIEW];\n        nestingLevel--;\n    }\n    return currentView;\n}\n/**\n * Gets the currently selected element index.\n *\n * Used with {@link property} instruction (and more in the future) to identify the index in the\n * current `LView` to act on.\n */\nfunction getSelectedIndex() {\n    return instructionState.lFrame.selectedIndex;\n}\n/**\n * Sets the most recent index passed to {@link select}\n *\n * Used with {@link property} instruction (and more in the future) to identify the index in the\n * current `LView` to act on.\n *\n * (Note that if an \"exit function\" was set earlier (via `setElementExitFn()`) then that will be\n * run if and when the provided `index` value is different from the current selected index value.)\n */\nfunction setSelectedIndex(index) {\n    ngDevMode && index !== -1 &&\n        assertGreaterThanOrEqual(index, HEADER_OFFSET, 'Index must be past HEADER_OFFSET (or -1).');\n    ngDevMode &&\n        assertLessThan(index, instructionState.lFrame.lView.length, 'Can\\'t set index passed end of LView');\n    instructionState.lFrame.selectedIndex = index;\n}\n/**\n * Gets the `tNode` that represents currently selected element.\n */\nfunction getSelectedTNode() {\n    const lFrame = instructionState.lFrame;\n    return getTNode(lFrame.tView, lFrame.selectedIndex);\n}\n/**\n * Sets the namespace used to create elements to `'http://www.w3.org/2000/svg'` in global state.\n *\n * @codeGenApi\n */\nfunction ɵɵnamespaceSVG() {\n    instructionState.lFrame.currentNamespace = SVG_NAMESPACE;\n}\n/**\n * Sets the namespace used to create elements to `'http://www.w3.org/1998/MathML/'` in global state.\n *\n * @codeGenApi\n */\nfunction ɵɵnamespaceMathML() {\n    instructionState.lFrame.currentNamespace = MATH_ML_NAMESPACE;\n}\n/**\n * Sets the namespace used to create elements to `null`, which forces element creation to use\n * `createElement` rather than `createElementNS`.\n *\n * @codeGenApi\n */\nfunction ɵɵnamespaceHTML() {\n    namespaceHTMLInternal();\n}\n/**\n * Sets the namespace used to create elements to `null`, which forces element creation to use\n * `createElement` rather than `createElementNS`.\n */\nfunction namespaceHTMLInternal() {\n    instructionState.lFrame.currentNamespace = null;\n}\nfunction getNamespace$1() {\n    return instructionState.lFrame.currentNamespace;\n}\nlet _wasLastNodeCreated = true;\n/**\n * Retrieves a global flag that indicates whether the most recent DOM node\n * was created or hydrated.\n */\nfunction wasLastNodeCreated() {\n    return _wasLastNodeCreated;\n}\n/**\n * Sets a global flag to indicate whether the most recent DOM node\n * was created or hydrated.\n */\nfunction lastNodeWasCreated(flag) {\n    _wasLastNodeCreated = flag;\n}\n\n/**\n * Adds all directive lifecycle hooks from the given `DirectiveDef` to the given `TView`.\n *\n * Must be run *only* on the first template pass.\n *\n * Sets up the pre-order hooks on the provided `tView`,\n * see {@link HookData} for details about the data structure.\n *\n * @param directiveIndex The index of the directive in LView\n * @param directiveDef The definition containing the hooks to setup in tView\n * @param tView The current TView\n */\nfunction registerPreOrderHooks(directiveIndex, directiveDef, tView) {\n    ngDevMode && assertFirstCreatePass(tView);\n    const { ngOnChanges, ngOnInit, ngDoCheck } = directiveDef.type.prototype;\n    if (ngOnChanges) {\n        const wrappedOnChanges = NgOnChangesFeatureImpl(directiveDef);\n        (tView.preOrderHooks ??= []).push(directiveIndex, wrappedOnChanges);\n        (tView.preOrderCheckHooks ??= []).push(directiveIndex, wrappedOnChanges);\n    }\n    if (ngOnInit) {\n        (tView.preOrderHooks ??= []).push(0 - directiveIndex, ngOnInit);\n    }\n    if (ngDoCheck) {\n        (tView.preOrderHooks ??= []).push(directiveIndex, ngDoCheck);\n        (tView.preOrderCheckHooks ??= []).push(directiveIndex, ngDoCheck);\n    }\n}\n/**\n *\n * Loops through the directives on the provided `tNode` and queues hooks to be\n * run that are not initialization hooks.\n *\n * Should be executed during `elementEnd()` and similar to\n * preserve hook execution order. Content, view, and destroy hooks for projected\n * components and directives must be called *before* their hosts.\n *\n * Sets up the content, view, and destroy hooks on the provided `tView`,\n * see {@link HookData} for details about the data structure.\n *\n * NOTE: This does not set up `onChanges`, `onInit` or `doCheck`, those are set up\n * separately at `elementStart`.\n *\n * @param tView The current TView\n * @param tNode The TNode whose directives are to be searched for hooks to queue\n */\nfunction registerPostOrderHooks(tView, tNode) {\n    ngDevMode && assertFirstCreatePass(tView);\n    // It's necessary to loop through the directives at elementEnd() (rather than processing in\n    // directiveCreate) so we can preserve the current hook order. Content, view, and destroy\n    // hooks for projected components and directives must be called *before* their hosts.\n    for (let i = tNode.directiveStart, end = tNode.directiveEnd; i < end; i++) {\n        const directiveDef = tView.data[i];\n        ngDevMode && assertDefined(directiveDef, 'Expecting DirectiveDef');\n        const lifecycleHooks = directiveDef.type.prototype;\n        const { ngAfterContentInit, ngAfterContentChecked, ngAfterViewInit, ngAfterViewChecked, ngOnDestroy } = lifecycleHooks;\n        if (ngAfterContentInit) {\n            (tView.contentHooks ??= []).push(-i, ngAfterContentInit);\n        }\n        if (ngAfterContentChecked) {\n            (tView.contentHooks ??= []).push(i, ngAfterContentChecked);\n            (tView.contentCheckHooks ??= []).push(i, ngAfterContentChecked);\n        }\n        if (ngAfterViewInit) {\n            (tView.viewHooks ??= []).push(-i, ngAfterViewInit);\n        }\n        if (ngAfterViewChecked) {\n            (tView.viewHooks ??= []).push(i, ngAfterViewChecked);\n            (tView.viewCheckHooks ??= []).push(i, ngAfterViewChecked);\n        }\n        if (ngOnDestroy != null) {\n            (tView.destroyHooks ??= []).push(i, ngOnDestroy);\n        }\n    }\n}\n/**\n * Executing hooks requires complex logic as we need to deal with 2 constraints.\n *\n * 1. Init hooks (ngOnInit, ngAfterContentInit, ngAfterViewInit) must all be executed once and only\n * once, across many change detection cycles. This must be true even if some hooks throw, or if\n * some recursively trigger a change detection cycle.\n * To solve that, it is required to track the state of the execution of these init hooks.\n * This is done by storing and maintaining flags in the view: the {@link InitPhaseState},\n * and the index within that phase. They can be seen as a cursor in the following structure:\n * [[onInit1, onInit2], [afterContentInit1], [afterViewInit1, afterViewInit2, afterViewInit3]]\n * They are stored as flags in LView[FLAGS].\n *\n * 2. Pre-order hooks can be executed in batches, because of the select instruction.\n * To be able to pause and resume their execution, we also need some state about the hook's array\n * that is being processed:\n * - the index of the next hook to be executed\n * - the number of init hooks already found in the processed part of the  array\n * They are stored as flags in LView[PREORDER_HOOK_FLAGS].\n */\n/**\n * Executes pre-order check hooks ( OnChanges, DoChanges) given a view where all the init hooks were\n * executed once. This is a light version of executeInitAndCheckPreOrderHooks where we can skip read\n * / write of the init-hooks related flags.\n * @param lView The LView where hooks are defined\n * @param hooks Hooks to be run\n * @param nodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n */\nfunction executeCheckHooks(lView, hooks, nodeIndex) {\n    callHooks(lView, hooks, 3 /* InitPhaseState.InitPhaseCompleted */, nodeIndex);\n}\n/**\n * Executes post-order init and check hooks (one of AfterContentInit, AfterContentChecked,\n * AfterViewInit, AfterViewChecked) given a view where there are pending init hooks to be executed.\n * @param lView The LView where hooks are defined\n * @param hooks Hooks to be run\n * @param initPhase A phase for which hooks should be run\n * @param nodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n */\nfunction executeInitAndCheckHooks(lView, hooks, initPhase, nodeIndex) {\n    ngDevMode &&\n        assertNotEqual(initPhase, 3 /* InitPhaseState.InitPhaseCompleted */, 'Init pre-order hooks should not be called more than once');\n    if ((lView[FLAGS] & 3 /* LViewFlags.InitPhaseStateMask */) === initPhase) {\n        callHooks(lView, hooks, initPhase, nodeIndex);\n    }\n}\nfunction incrementInitPhaseFlags(lView, initPhase) {\n    ngDevMode &&\n        assertNotEqual(initPhase, 3 /* InitPhaseState.InitPhaseCompleted */, 'Init hooks phase should not be incremented after all init hooks have been run.');\n    let flags = lView[FLAGS];\n    if ((flags & 3 /* LViewFlags.InitPhaseStateMask */) === initPhase) {\n        flags &= 8191 /* LViewFlags.IndexWithinInitPhaseReset */;\n        flags += 1 /* LViewFlags.InitPhaseStateIncrementer */;\n        lView[FLAGS] = flags;\n    }\n}\n/**\n * Calls lifecycle hooks with their contexts, skipping init hooks if it's not\n * the first LView pass\n *\n * @param currentView The current view\n * @param arr The array in which the hooks are found\n * @param initPhaseState the current state of the init phase\n * @param currentNodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n */\nfunction callHooks(currentView, arr, initPhase, currentNodeIndex) {\n    ngDevMode &&\n        assertEqual(isInCheckNoChangesMode(), false, 'Hooks should never be run when in check no changes mode.');\n    const startIndex = currentNodeIndex !== undefined ?\n        (currentView[PREORDER_HOOK_FLAGS] & 65535 /* PreOrderHookFlags.IndexOfTheNextPreOrderHookMaskMask */) :\n        0;\n    const nodeIndexLimit = currentNodeIndex != null ? currentNodeIndex : -1;\n    const max = arr.length - 1; // Stop the loop at length - 1, because we look for the hook at i + 1\n    let lastNodeIndexFound = 0;\n    for (let i = startIndex; i < max; i++) {\n        const hook = arr[i + 1];\n        if (typeof hook === 'number') {\n            lastNodeIndexFound = arr[i];\n            if (currentNodeIndex != null && lastNodeIndexFound >= currentNodeIndex) {\n                break;\n            }\n        }\n        else {\n            const isInitHook = arr[i] < 0;\n            if (isInitHook) {\n                currentView[PREORDER_HOOK_FLAGS] += 65536 /* PreOrderHookFlags.NumberOfInitHooksCalledIncrementer */;\n            }\n            if (lastNodeIndexFound < nodeIndexLimit || nodeIndexLimit == -1) {\n                callHook(currentView, initPhase, arr, i);\n                currentView[PREORDER_HOOK_FLAGS] =\n                    (currentView[PREORDER_HOOK_FLAGS] & 4294901760 /* PreOrderHookFlags.NumberOfInitHooksCalledMask */) + i +\n                        2;\n            }\n            i++;\n        }\n    }\n}\n/**\n * Executes a single lifecycle hook, making sure that:\n * - it is called in the non-reactive context;\n * - profiling data are registered.\n */\nfunction callHookInternal(directive, hook) {\n    profiler(4 /* ProfilerEvent.LifecycleHookStart */, directive, hook);\n    const prevConsumer = setActiveConsumer(null);\n    try {\n        hook.call(directive);\n    }\n    finally {\n        setActiveConsumer(prevConsumer);\n        profiler(5 /* ProfilerEvent.LifecycleHookEnd */, directive, hook);\n    }\n}\n/**\n * Execute one hook against the current `LView`.\n *\n * @param currentView The current view\n * @param initPhaseState the current state of the init phase\n * @param arr The array in which the hooks are found\n * @param i The current index within the hook data array\n */\nfunction callHook(currentView, initPhase, arr, i) {\n    const isInitHook = arr[i] < 0;\n    const hook = arr[i + 1];\n    const directiveIndex = isInitHook ? -arr[i] : arr[i];\n    const directive = currentView[directiveIndex];\n    if (isInitHook) {\n        const indexWithintInitPhase = currentView[FLAGS] >> 13 /* LViewFlags.IndexWithinInitPhaseShift */;\n        // The init phase state must be always checked here as it may have been recursively updated.\n        if (indexWithintInitPhase <\n            (currentView[PREORDER_HOOK_FLAGS] >> 16 /* PreOrderHookFlags.NumberOfInitHooksCalledShift */) &&\n            (currentView[FLAGS] & 3 /* LViewFlags.InitPhaseStateMask */) === initPhase) {\n            currentView[FLAGS] += 8192 /* LViewFlags.IndexWithinInitPhaseIncrementer */;\n            callHookInternal(directive, hook);\n        }\n    }\n    else {\n        callHookInternal(directive, hook);\n    }\n}\n\nconst NO_PARENT_INJECTOR = -1;\n/**\n * Each injector is saved in 9 contiguous slots in `LView` and 9 contiguous slots in\n * `TView.data`. This allows us to store information about the current node's tokens (which\n * can be shared in `TView`) as well as the tokens of its ancestor nodes (which cannot be\n * shared, so they live in `LView`).\n *\n * Each of these slots (aside from the last slot) contains a bloom filter. This bloom filter\n * determines whether a directive is available on the associated node or not. This prevents us\n * from searching the directives array at this level unless it's probable the directive is in it.\n *\n * See: https://en.wikipedia.org/wiki/Bloom_filter for more about bloom filters.\n *\n * Because all injectors have been flattened into `LView` and `TViewData`, they cannot typed\n * using interfaces as they were previously. The start index of each `LInjector` and `TInjector`\n * will differ based on where it is flattened into the main array, so it's not possible to know\n * the indices ahead of time and save their types here. The interfaces are still included here\n * for documentation purposes.\n *\n * export interface LInjector extends Array<any> {\n *\n *    // Cumulative bloom for directive IDs 0-31  (IDs are % BLOOM_SIZE)\n *    [0]: number;\n *\n *    // Cumulative bloom for directive IDs 32-63\n *    [1]: number;\n *\n *    // Cumulative bloom for directive IDs 64-95\n *    [2]: number;\n *\n *    // Cumulative bloom for directive IDs 96-127\n *    [3]: number;\n *\n *    // Cumulative bloom for directive IDs 128-159\n *    [4]: number;\n *\n *    // Cumulative bloom for directive IDs 160 - 191\n *    [5]: number;\n *\n *    // Cumulative bloom for directive IDs 192 - 223\n *    [6]: number;\n *\n *    // Cumulative bloom for directive IDs 224 - 255\n *    [7]: number;\n *\n *    // We need to store a reference to the injector's parent so DI can keep looking up\n *    // the injector tree until it finds the dependency it's looking for.\n *    [PARENT_INJECTOR]: number;\n * }\n *\n * export interface TInjector extends Array<any> {\n *\n *    // Shared node bloom for directive IDs 0-31  (IDs are % BLOOM_SIZE)\n *    [0]: number;\n *\n *    // Shared node bloom for directive IDs 32-63\n *    [1]: number;\n *\n *    // Shared node bloom for directive IDs 64-95\n *    [2]: number;\n *\n *    // Shared node bloom for directive IDs 96-127\n *    [3]: number;\n *\n *    // Shared node bloom for directive IDs 128-159\n *    [4]: number;\n *\n *    // Shared node bloom for directive IDs 160 - 191\n *    [5]: number;\n *\n *    // Shared node bloom for directive IDs 192 - 223\n *    [6]: number;\n *\n *    // Shared node bloom for directive IDs 224 - 255\n *    [7]: number;\n *\n *    // Necessary to find directive indices for a particular node.\n *    [TNODE]: TElementNode|TElementContainerNode|TContainerNode;\n *  }\n */\n/**\n * Factory for creating instances of injectors in the NodeInjector.\n *\n * This factory is complicated by the fact that it can resolve `multi` factories as well.\n *\n * NOTE: Some of the fields are optional which means that this class has two hidden classes.\n * - One without `multi` support (most common)\n * - One with `multi` values, (rare).\n *\n * Since VMs can cache up to 4 inline hidden classes this is OK.\n *\n * - Single factory: Only `resolving` and `factory` is defined.\n * - `providers` factory: `componentProviders` is a number and `index = -1`.\n * - `viewProviders` factory: `componentProviders` is a number and `index` points to `providers`.\n */\nclass NodeInjectorFactory {\n    constructor(\n    /**\n     * Factory to invoke in order to create a new instance.\n     */\n    factory, \n    /**\n     * Set to `true` if the token is declared in `viewProviders` (or if it is component).\n     */\n    isViewProvider, injectImplementation) {\n        this.factory = factory;\n        /**\n         * Marker set to true during factory invocation to see if we get into recursive loop.\n         * Recursive loop causes an error to be displayed.\n         */\n        this.resolving = false;\n        ngDevMode && assertDefined(factory, 'Factory not specified');\n        ngDevMode && assertEqual(typeof factory, 'function', 'Expected factory function.');\n        this.canSeeViewProviders = isViewProvider;\n        this.injectImpl = injectImplementation;\n    }\n}\nfunction isFactory(obj) {\n    return obj instanceof NodeInjectorFactory;\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\nconst unusedValueExportToPlacateAjd$2 = 1;\n\n/**\n * Converts `TNodeType` into human readable text.\n * Make sure this matches with `TNodeType`\n */\nfunction toTNodeTypeAsString(tNodeType) {\n    let text = '';\n    (tNodeType & 1 /* TNodeType.Text */) && (text += '|Text');\n    (tNodeType & 2 /* TNodeType.Element */) && (text += '|Element');\n    (tNodeType & 4 /* TNodeType.Container */) && (text += '|Container');\n    (tNodeType & 8 /* TNodeType.ElementContainer */) && (text += '|ElementContainer');\n    (tNodeType & 16 /* TNodeType.Projection */) && (text += '|Projection');\n    (tNodeType & 32 /* TNodeType.Icu */) && (text += '|IcuContainer');\n    (tNodeType & 64 /* TNodeType.Placeholder */) && (text += '|Placeholder');\n    return text.length > 0 ? text.substring(1) : text;\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\nconst unusedValueExportToPlacateAjd$1 = 1;\n/**\n * Returns `true` if the `TNode` has a directive which has `@Input()` for `class` binding.\n *\n * ```\n * <div my-dir [class]=\"exp\"></div>\n * ```\n * and\n * ```\n * @Directive({\n * })\n * class MyDirective {\n *   @Input()\n *   class: string;\n * }\n * ```\n *\n * In the above case it is necessary to write the reconciled styling information into the\n * directive's input.\n *\n * @param tNode\n */\nfunction hasClassInput(tNode) {\n    return (tNode.flags & 8 /* TNodeFlags.hasClassInput */) !== 0;\n}\n/**\n * Returns `true` if the `TNode` has a directive which has `@Input()` for `style` binding.\n *\n * ```\n * <div my-dir [style]=\"exp\"></div>\n * ```\n * and\n * ```\n * @Directive({\n * })\n * class MyDirective {\n *   @Input()\n *   class: string;\n * }\n * ```\n *\n * In the above case it is necessary to write the reconciled styling information into the\n * directive's input.\n *\n * @param tNode\n */\nfunction hasStyleInput(tNode) {\n    return (tNode.flags & 16 /* TNodeFlags.hasStyleInput */) !== 0;\n}\n\nfunction assertTNodeType(tNode, expectedTypes, message) {\n    assertDefined(tNode, 'should be called with a TNode');\n    if ((tNode.type & expectedTypes) === 0) {\n        throwError(message ||\n            `Expected [${toTNodeTypeAsString(expectedTypes)}] but got ${toTNodeTypeAsString(tNode.type)}.`);\n    }\n}\nfunction assertPureTNodeType(type) {\n    if (!(type === 2 /* TNodeType.Element */ || //\n        type === 1 /* TNodeType.Text */ || //\n        type === 4 /* TNodeType.Container */ || //\n        type === 8 /* TNodeType.ElementContainer */ || //\n        type === 32 /* TNodeType.Icu */ || //\n        type === 16 /* TNodeType.Projection */ || //\n        type === 64 /* TNodeType.Placeholder */)) {\n        throwError(`Expected TNodeType to have only a single type selected, but got ${toTNodeTypeAsString(type)}.`);\n    }\n}\n\n/// Parent Injector Utils ///////////////////////////////////////////////////////////////\nfunction hasParentInjector(parentLocation) {\n    return parentLocation !== NO_PARENT_INJECTOR;\n}\nfunction getParentInjectorIndex(parentLocation) {\n    ngDevMode && assertNumber(parentLocation, 'Number expected');\n    ngDevMode && assertNotEqual(parentLocation, -1, 'Not a valid state.');\n    const parentInjectorIndex = parentLocation & 32767 /* RelativeInjectorLocationFlags.InjectorIndexMask */;\n    ngDevMode &&\n        assertGreaterThan(parentInjectorIndex, HEADER_OFFSET, 'Parent injector must be pointing past HEADER_OFFSET.');\n    return parentLocation & 32767 /* RelativeInjectorLocationFlags.InjectorIndexMask */;\n}\nfunction getParentInjectorViewOffset(parentLocation) {\n    return parentLocation >> 16 /* RelativeInjectorLocationFlags.ViewOffsetShift */;\n}\n/**\n * Unwraps a parent injector location number to find the view offset from the current injector,\n * then walks up the declaration view tree until the view is found that contains the parent\n * injector.\n *\n * @param location The location of the parent injector, which contains the view offset\n * @param startView The LView instance from which to start walking up the view tree\n * @returns The LView instance that contains the parent injector\n */\nfunction getParentInjectorView(location, startView) {\n    let viewOffset = getParentInjectorViewOffset(location);\n    let parentView = startView;\n    // For most cases, the parent injector can be found on the host node (e.g. for component\n    // or container), but we must keep the loop here to support the rarer case of deeply nested\n    // <ng-template> tags or inline views, where the parent injector might live many views\n    // above the child injector.\n    while (viewOffset > 0) {\n        parentView = parentView[DECLARATION_VIEW];\n        viewOffset--;\n    }\n    return parentView;\n}\n\n/**\n * Defines if the call to `inject` should include `viewProviders` in its resolution.\n *\n * This is set to true when we try to instantiate a component. This value is reset in\n * `getNodeInjectable` to a value which matches the declaration location of the token about to be\n * instantiated. This is done so that if we are injecting a token which was declared outside of\n * `viewProviders` we don't accidentally pull `viewProviders` in.\n *\n * Example:\n *\n * ```\n * @Injectable()\n * class MyService {\n *   constructor(public value: String) {}\n * }\n *\n * @Component({\n *   providers: [\n *     MyService,\n *     {provide: String, value: 'providers' }\n *   ]\n *   viewProviders: [\n *     {provide: String, value: 'viewProviders'}\n *   ]\n * })\n * class MyComponent {\n *   constructor(myService: MyService, value: String) {\n *     // We expect that Component can see into `viewProviders`.\n *     expect(value).toEqual('viewProviders');\n *     // `MyService` was not declared in `viewProviders` hence it can't see it.\n *     expect(myService.value).toEqual('providers');\n *   }\n * }\n *\n * ```\n */\nlet includeViewProviders = true;\nfunction setIncludeViewProviders(v) {\n    const oldValue = includeViewProviders;\n    includeViewProviders = v;\n    return oldValue;\n}\n/**\n * The number of slots in each bloom filter (used by DI). The larger this number, the fewer\n * directives that will share slots, and thus, the fewer false positives when checking for\n * the existence of a directive.\n */\nconst BLOOM_SIZE = 256;\nconst BLOOM_MASK = BLOOM_SIZE - 1;\n/**\n * The number of bits that is represented by a single bloom bucket. JS bit operations are 32 bits,\n * so each bucket represents 32 distinct tokens which accounts for log2(32) = 5 bits of a bloom hash\n * number.\n */\nconst BLOOM_BUCKET_BITS = 5;\n/** Counter used to generate unique IDs for directives. */\nlet nextNgElementId = 0;\n/** Value used when something wasn't found by an injector. */\nconst NOT_FOUND = {};\n/**\n * Registers this directive as present in its node's injector by flipping the directive's\n * corresponding bit in the injector's bloom filter.\n *\n * @param injectorIndex The index of the node injector where this token should be registered\n * @param tView The TView for the injector's bloom filters\n * @param type The directive token to register\n */\nfunction bloomAdd(injectorIndex, tView, type) {\n    ngDevMode && assertEqual(tView.firstCreatePass, true, 'expected firstCreatePass to be true');\n    let id;\n    if (typeof type === 'string') {\n        id = type.charCodeAt(0) || 0;\n    }\n    else if (type.hasOwnProperty(NG_ELEMENT_ID)) {\n        id = type[NG_ELEMENT_ID];\n    }\n    // Set a unique ID on the directive type, so if something tries to inject the directive,\n    // we can easily retrieve the ID and hash it into the bloom bit that should be checked.\n    if (id == null) {\n        id = type[NG_ELEMENT_ID] = nextNgElementId++;\n    }\n    // We only have BLOOM_SIZE (256) slots in our bloom filter (8 buckets * 32 bits each),\n    // so all unique IDs must be modulo-ed into a number from 0 - 255 to fit into the filter.\n    const bloomHash = id & BLOOM_MASK;\n    // Create a mask that targets the specific bit associated with the directive.\n    // JS bit operations are 32 bits, so this will be a number between 2^0 and 2^31, corresponding\n    // to bit positions 0 - 31 in a 32 bit integer.\n    const mask = 1 << bloomHash;\n    // Each bloom bucket in `tData` represents `BLOOM_BUCKET_BITS` number of bits of `bloomHash`.\n    // Any bits in `bloomHash` beyond `BLOOM_BUCKET_BITS` indicate the bucket offset that the mask\n    // should be written to.\n    tView.data[injectorIndex + (bloomHash >> BLOOM_BUCKET_BITS)] |= mask;\n}\n/**\n * Creates (or gets an existing) injector for a given element or container.\n *\n * @param tNode for which an injector should be retrieved / created.\n * @param lView View where the node is stored\n * @returns Node injector\n */\nfunction getOrCreateNodeInjectorForNode(tNode, lView) {\n    const existingInjectorIndex = getInjectorIndex(tNode, lView);\n    if (existingInjectorIndex !== -1) {\n        return existingInjectorIndex;\n    }\n    const tView = lView[TVIEW];\n    if (tView.firstCreatePass) {\n        tNode.injectorIndex = lView.length;\n        insertBloom(tView.data, tNode); // foundation for node bloom\n        insertBloom(lView, null); // foundation for cumulative bloom\n        insertBloom(tView.blueprint, null);\n    }\n    const parentLoc = getParentInjectorLocation(tNode, lView);\n    const injectorIndex = tNode.injectorIndex;\n    // If a parent injector can't be found, its location is set to -1.\n    // In that case, we don't need to set up a cumulative bloom\n    if (hasParentInjector(parentLoc)) {\n        const parentIndex = getParentInjectorIndex(parentLoc);\n        const parentLView = getParentInjectorView(parentLoc, lView);\n        const parentData = parentLView[TVIEW].data;\n        // Creates a cumulative bloom filter that merges the parent's bloom filter\n        // and its own cumulative bloom (which contains tokens for all ancestors)\n        for (let i = 0; i < 8 /* NodeInjectorOffset.BLOOM_SIZE */; i++) {\n            lView[injectorIndex + i] = parentLView[parentIndex + i] | parentData[parentIndex + i];\n        }\n    }\n    lView[injectorIndex + 8 /* NodeInjectorOffset.PARENT */] = parentLoc;\n    return injectorIndex;\n}\nfunction insertBloom(arr, footer) {\n    arr.push(0, 0, 0, 0, 0, 0, 0, 0, footer);\n}\nfunction getInjectorIndex(tNode, lView) {\n    if (tNode.injectorIndex === -1 ||\n        // If the injector index is the same as its parent's injector index, then the index has been\n        // copied down from the parent node. No injector has been created yet on this node.\n        (tNode.parent && tNode.parent.injectorIndex === tNode.injectorIndex) ||\n        // After the first template pass, the injector index might exist but the parent values\n        // might not have been calculated yet for this instance\n        lView[tNode.injectorIndex + 8 /* NodeInjectorOffset.PARENT */] === null) {\n        return -1;\n    }\n    else {\n        ngDevMode && assertIndexInRange(lView, tNode.injectorIndex);\n        return tNode.injectorIndex;\n    }\n}\n/**\n * Finds the index of the parent injector, with a view offset if applicable. Used to set the\n * parent injector initially.\n *\n * @returns Returns a number that is the combination of the number of LViews that we have to go up\n * to find the LView containing the parent inject AND the index of the injector within that LView.\n */\nfunction getParentInjectorLocation(tNode, lView) {\n    if (tNode.parent && tNode.parent.injectorIndex !== -1) {\n        // If we have a parent `TNode` and there is an injector associated with it we are done, because\n        // the parent injector is within the current `LView`.\n        return tNode.parent.injectorIndex; // ViewOffset is 0\n    }\n    // When parent injector location is computed it may be outside of the current view. (ie it could\n    // be pointing to a declared parent location). This variable stores number of declaration parents\n    // we need to walk up in order to find the parent injector location.\n    let declarationViewOffset = 0;\n    let parentTNode = null;\n    let lViewCursor = lView;\n    // The parent injector is not in the current `LView`. We will have to walk the declared parent\n    // `LView` hierarchy and look for it. If we walk of the top, that means that there is no parent\n    // `NodeInjector`.\n    while (lViewCursor !== null) {\n        parentTNode = getTNodeFromLView(lViewCursor);\n        if (parentTNode === null) {\n            // If we have no parent, than we are done.\n            return NO_PARENT_INJECTOR;\n        }\n        ngDevMode && parentTNode && assertTNodeForLView(parentTNode, lViewCursor[DECLARATION_VIEW]);\n        // Every iteration of the loop requires that we go to the declared parent.\n        declarationViewOffset++;\n        lViewCursor = lViewCursor[DECLARATION_VIEW];\n        if (parentTNode.injectorIndex !== -1) {\n            // We found a NodeInjector which points to something.\n            return (parentTNode.injectorIndex |\n                (declarationViewOffset << 16 /* RelativeInjectorLocationFlags.ViewOffsetShift */));\n        }\n    }\n    return NO_PARENT_INJECTOR;\n}\n/**\n * Makes a type or an injection token public to the DI system by adding it to an\n * injector's bloom filter.\n *\n * @param di The node injector in which a directive will be added\n * @param token The type or the injection token to be made public\n */\nfunction diPublicInInjector(injectorIndex, tView, token) {\n    bloomAdd(injectorIndex, tView, token);\n}\n/**\n * Inject static attribute value into directive constructor.\n *\n * This method is used with `factory` functions which are generated as part of\n * `defineDirective` or `defineComponent`. The method retrieves the static value\n * of an attribute. (Dynamic attributes are not supported since they are not resolved\n *  at the time of injection and can change over time.)\n *\n * # Example\n * Given:\n * ```\n * @Component(...)\n * class MyComponent {\n *   constructor(@Attribute('title') title: string) { ... }\n * }\n * ```\n * When instantiated with\n * ```\n * <my-component title=\"Hello\"></my-component>\n * ```\n *\n * Then factory method generated is:\n * ```\n * MyComponent.ɵcmp = defineComponent({\n *   factory: () => new MyComponent(injectAttribute('title'))\n *   ...\n * })\n * ```\n *\n * @publicApi\n */\nfunction injectAttributeImpl(tNode, attrNameToInject) {\n    ngDevMode && assertTNodeType(tNode, 12 /* TNodeType.AnyContainer */ | 3 /* TNodeType.AnyRNode */);\n    ngDevMode && assertDefined(tNode, 'expecting tNode');\n    if (attrNameToInject === 'class') {\n        return tNode.classes;\n    }\n    if (attrNameToInject === 'style') {\n        return tNode.styles;\n    }\n    const attrs = tNode.attrs;\n    if (attrs) {\n        const attrsLength = attrs.length;\n        let i = 0;\n        while (i < attrsLength) {\n            const value = attrs[i];\n            // If we hit a `Bindings` or `Template` marker then we are done.\n            if (isNameOnlyAttributeMarker(value))\n                break;\n            // Skip namespaced attributes\n            if (value === 0 /* AttributeMarker.NamespaceURI */) {\n                // we skip the next two values\n                // as namespaced attributes looks like\n                // [..., AttributeMarker.NamespaceURI, 'http://someuri.com/test', 'test:exist',\n                // 'existValue', ...]\n                i = i + 2;\n            }\n            else if (typeof value === 'number') {\n                // Skip to the first value of the marked attribute.\n                i++;\n                while (i < attrsLength && typeof attrs[i] === 'string') {\n                    i++;\n                }\n            }\n            else if (value === attrNameToInject) {\n                return attrs[i + 1];\n            }\n            else {\n                i = i + 2;\n            }\n        }\n    }\n    return null;\n}\nfunction notFoundValueOrThrow(notFoundValue, token, flags) {\n    if ((flags & InjectFlags.Optional) || notFoundValue !== undefined) {\n        return notFoundValue;\n    }\n    else {\n        throwProviderNotFoundError(token, 'NodeInjector');\n    }\n}\n/**\n * Returns the value associated to the given token from the ModuleInjector or throws exception\n *\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InjectFlags.Optional`\n * @returns the value from the injector or throws an exception\n */\nfunction lookupTokenUsingModuleInjector(lView, token, flags, notFoundValue) {\n    if ((flags & InjectFlags.Optional) && notFoundValue === undefined) {\n        // This must be set or the NullInjector will throw for optional deps\n        notFoundValue = null;\n    }\n    if ((flags & (InjectFlags.Self | InjectFlags.Host)) === 0) {\n        const moduleInjector = lView[INJECTOR$1];\n        // switch to `injectInjectorOnly` implementation for module injector, since module injector\n        // should not have access to Component/Directive DI scope (that may happen through\n        // `directiveInject` implementation)\n        const previousInjectImplementation = setInjectImplementation(undefined);\n        try {\n            if (moduleInjector) {\n                return moduleInjector.get(token, notFoundValue, flags & InjectFlags.Optional);\n            }\n            else {\n                return injectRootLimpMode(token, notFoundValue, flags & InjectFlags.Optional);\n            }\n        }\n        finally {\n            setInjectImplementation(previousInjectImplementation);\n        }\n    }\n    return notFoundValueOrThrow(notFoundValue, token, flags);\n}\n/**\n * Returns the value associated to the given token from the NodeInjectors => ModuleInjector.\n *\n * Look for the injector providing the token by walking up the node injector tree and then\n * the module injector tree.\n *\n * This function patches `token` with `__NG_ELEMENT_ID__` which contains the id for the bloom\n * filter. `-1` is reserved for injecting `Injector` (implemented by `NodeInjector`)\n *\n * @param tNode The Node where the search for the injector should start\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InjectFlags.Optional`\n * @returns the value from the injector, `null` when not found, or `notFoundValue` if provided\n */\nfunction getOrCreateInjectable(tNode, lView, token, flags = InjectFlags.Default, notFoundValue) {\n    if (tNode !== null) {\n        // If the view or any of its ancestors have an embedded\n        // view injector, we have to look it up there first.\n        if (lView[FLAGS] & 2048 /* LViewFlags.HasEmbeddedViewInjector */ &&\n            // The token must be present on the current node injector when the `Self`\n            // flag is set, so the lookup on embedded view injector(s) can be skipped.\n            !(flags & InjectFlags.Self)) {\n            const embeddedInjectorValue = lookupTokenUsingEmbeddedInjector(tNode, lView, token, flags, NOT_FOUND);\n            if (embeddedInjectorValue !== NOT_FOUND) {\n                return embeddedInjectorValue;\n            }\n        }\n        // Otherwise try the node injector.\n        const value = lookupTokenUsingNodeInjector(tNode, lView, token, flags, NOT_FOUND);\n        if (value !== NOT_FOUND) {\n            return value;\n        }\n    }\n    // Finally, fall back to the module injector.\n    return lookupTokenUsingModuleInjector(lView, token, flags, notFoundValue);\n}\n/**\n * Returns the value associated to the given token from the node injector.\n *\n * @param tNode The Node where the search for the injector should start\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InjectFlags.Optional`\n * @returns the value from the injector, `null` when not found, or `notFoundValue` if provided\n */\nfunction lookupTokenUsingNodeInjector(tNode, lView, token, flags, notFoundValue) {\n    const bloomHash = bloomHashBitOrFactory(token);\n    // If the ID stored here is a function, this is a special object like ElementRef or TemplateRef\n    // so just call the factory function to create it.\n    if (typeof bloomHash === 'function') {\n        if (!enterDI(lView, tNode, flags)) {\n            // Failed to enter DI, try module injector instead. If a token is injected with the @Host\n            // flag, the module injector is not searched for that token in Ivy.\n            return (flags & InjectFlags.Host) ?\n                notFoundValueOrThrow(notFoundValue, token, flags) :\n                lookupTokenUsingModuleInjector(lView, token, flags, notFoundValue);\n        }\n        try {\n            let value;\n            if (ngDevMode) {\n                runInInjectorProfilerContext(new NodeInjector(getCurrentTNode(), getLView()), token, () => {\n                    value = bloomHash(flags);\n                    if (value != null) {\n                        emitInstanceCreatedByInjectorEvent(value);\n                    }\n                });\n            }\n            else {\n                value = bloomHash(flags);\n            }\n            if (value == null && !(flags & InjectFlags.Optional)) {\n                throwProviderNotFoundError(token);\n            }\n            else {\n                return value;\n            }\n        }\n        finally {\n            leaveDI();\n        }\n    }\n    else if (typeof bloomHash === 'number') {\n        // A reference to the previous injector TView that was found while climbing the element\n        // injector tree. This is used to know if viewProviders can be accessed on the current\n        // injector.\n        let previousTView = null;\n        let injectorIndex = getInjectorIndex(tNode, lView);\n        let parentLocation = NO_PARENT_INJECTOR;\n        let hostTElementNode = flags & InjectFlags.Host ? lView[DECLARATION_COMPONENT_VIEW][T_HOST] : null;\n        // If we should skip this injector, or if there is no injector on this node, start by\n        // searching the parent injector.\n        if (injectorIndex === -1 || flags & InjectFlags.SkipSelf) {\n            parentLocation = injectorIndex === -1 ? getParentInjectorLocation(tNode, lView) :\n                lView[injectorIndex + 8 /* NodeInjectorOffset.PARENT */];\n            if (parentLocation === NO_PARENT_INJECTOR || !shouldSearchParent(flags, false)) {\n                injectorIndex = -1;\n            }\n            else {\n                previousTView = lView[TVIEW];\n                injectorIndex = getParentInjectorIndex(parentLocation);\n                lView = getParentInjectorView(parentLocation, lView);\n            }\n        }\n        // Traverse up the injector tree until we find a potential match or until we know there\n        // *isn't* a match.\n        while (injectorIndex !== -1) {\n            ngDevMode && assertNodeInjector(lView, injectorIndex);\n            // Check the current injector. If it matches, see if it contains token.\n            const tView = lView[TVIEW];\n            ngDevMode &&\n                assertTNodeForLView(tView.data[injectorIndex + 8 /* NodeInjectorOffset.TNODE */], lView);\n            if (bloomHasToken(bloomHash, injectorIndex, tView.data)) {\n                // At this point, we have an injector which *may* contain the token, so we step through\n                // the providers and directives associated with the injector's corresponding node to get\n                // the instance.\n                const instance = searchTokensOnInjector(injectorIndex, lView, token, previousTView, flags, hostTElementNode);\n                if (instance !== NOT_FOUND) {\n                    return instance;\n                }\n            }\n            parentLocation = lView[injectorIndex + 8 /* NodeInjectorOffset.PARENT */];\n            if (parentLocation !== NO_PARENT_INJECTOR &&\n                shouldSearchParent(flags, lView[TVIEW].data[injectorIndex + 8 /* NodeInjectorOffset.TNODE */] === hostTElementNode) &&\n                bloomHasToken(bloomHash, injectorIndex, lView)) {\n                // The def wasn't found anywhere on this node, so it was a false positive.\n                // Traverse up the tree and continue searching.\n                previousTView = tView;\n                injectorIndex = getParentInjectorIndex(parentLocation);\n                lView = getParentInjectorView(parentLocation, lView);\n            }\n            else {\n                // If we should not search parent OR If the ancestor bloom filter value does not have the\n                // bit corresponding to the directive we can give up on traversing up to find the specific\n                // injector.\n                injectorIndex = -1;\n            }\n        }\n    }\n    return notFoundValue;\n}\nfunction searchTokensOnInjector(injectorIndex, lView, token, previousTView, flags, hostTElementNode) {\n    const currentTView = lView[TVIEW];\n    const tNode = currentTView.data[injectorIndex + 8 /* NodeInjectorOffset.TNODE */];\n    // First, we need to determine if view providers can be accessed by the starting element.\n    // There are two possibilities\n    const canAccessViewProviders = previousTView == null ?\n        // 1) This is the first invocation `previousTView == null` which means that we are at the\n        // `TNode` of where injector is starting to look. In such a case the only time we are allowed\n        // to look into the ViewProviders is if:\n        // - we are on a component\n        // - AND the injector set `includeViewProviders` to true (implying that the token can see\n        // ViewProviders because it is the Component or a Service which itself was declared in\n        // ViewProviders)\n        (isComponentHost(tNode) && includeViewProviders) :\n        // 2) `previousTView != null` which means that we are now walking across the parent nodes.\n        // In such a case we are only allowed to look into the ViewProviders if:\n        // - We just crossed from child View to Parent View `previousTView != currentTView`\n        // - AND the parent TNode is an Element.\n        // This means that we just came from the Component's View and therefore are allowed to see\n        // into the ViewProviders.\n        (previousTView != currentTView && ((tNode.type & 3 /* TNodeType.AnyRNode */) !== 0));\n    // This special case happens when there is a @host on the inject and when we are searching\n    // on the host element node.\n    const isHostSpecialCase = (flags & InjectFlags.Host) && hostTElementNode === tNode;\n    const injectableIdx = locateDirectiveOrProvider(tNode, currentTView, token, canAccessViewProviders, isHostSpecialCase);\n    if (injectableIdx !== null) {\n        return getNodeInjectable(lView, currentTView, injectableIdx, tNode);\n    }\n    else {\n        return NOT_FOUND;\n    }\n}\n/**\n * Searches for the given token among the node's directives and providers.\n *\n * @param tNode TNode on which directives are present.\n * @param tView The tView we are currently processing\n * @param token Provider token or type of a directive to look for.\n * @param canAccessViewProviders Whether view providers should be considered.\n * @param isHostSpecialCase Whether the host special case applies.\n * @returns Index of a found directive or provider, or null when none found.\n */\nfunction locateDirectiveOrProvider(tNode, tView, token, canAccessViewProviders, isHostSpecialCase) {\n    const nodeProviderIndexes = tNode.providerIndexes;\n    const tInjectables = tView.data;\n    const injectablesStart = nodeProviderIndexes & 1048575 /* TNodeProviderIndexes.ProvidersStartIndexMask */;\n    const directivesStart = tNode.directiveStart;\n    const directiveEnd = tNode.directiveEnd;\n    const cptViewProvidersCount = nodeProviderIndexes >> 20 /* TNodeProviderIndexes.CptViewProvidersCountShift */;\n    const startingIndex = canAccessViewProviders ? injectablesStart : injectablesStart + cptViewProvidersCount;\n    // When the host special case applies, only the viewProviders and the component are visible\n    const endIndex = isHostSpecialCase ? injectablesStart + cptViewProvidersCount : directiveEnd;\n    for (let i = startingIndex; i < endIndex; i++) {\n        const providerTokenOrDef = tInjectables[i];\n        if (i < directivesStart && token === providerTokenOrDef ||\n            i >= directivesStart && providerTokenOrDef.type === token) {\n            return i;\n        }\n    }\n    if (isHostSpecialCase) {\n        const dirDef = tInjectables[directivesStart];\n        if (dirDef && isComponentDef(dirDef) && dirDef.type === token) {\n            return directivesStart;\n        }\n    }\n    return null;\n}\n/**\n * Retrieve or instantiate the injectable from the `LView` at particular `index`.\n *\n * This function checks to see if the value has already been instantiated and if so returns the\n * cached `injectable`. Otherwise if it detects that the value is still a factory it\n * instantiates the `injectable` and caches the value.\n */\nfunction getNodeInjectable(lView, tView, index, tNode) {\n    let value = lView[index];\n    const tData = tView.data;\n    if (isFactory(value)) {\n        const factory = value;\n        if (factory.resolving) {\n            throwCyclicDependencyError(stringifyForError(tData[index]));\n        }\n        const previousIncludeViewProviders = setIncludeViewProviders(factory.canSeeViewProviders);\n        factory.resolving = true;\n        let prevInjectContext;\n        if (ngDevMode) {\n            // tData indexes mirror the concrete instances in its corresponding LView.\n            // lView[index] here is either the injectable instace itself or a factory,\n            // therefore tData[index] is the constructor of that injectable or a\n            // definition object that contains the constructor in a `.type` field.\n            const token = tData[index].type || tData[index];\n            const injector = new NodeInjector(tNode, lView);\n            prevInjectContext = setInjectorProfilerContext({ injector, token });\n        }\n        const previousInjectImplementation = factory.injectImpl ? setInjectImplementation(factory.injectImpl) : null;\n        const success = enterDI(lView, tNode, InjectFlags.Default);\n        ngDevMode &&\n            assertEqual(success, true, 'Because flags do not contain \\`SkipSelf\\' we expect this to always succeed.');\n        try {\n            value = lView[index] = factory.factory(undefined, tData, lView, tNode);\n            ngDevMode && emitInstanceCreatedByInjectorEvent(value);\n            // This code path is hit for both directives and providers.\n            // For perf reasons, we want to avoid searching for hooks on providers.\n            // It does no harm to try (the hooks just won't exist), but the extra\n            // checks are unnecessary and this is a hot path. So we check to see\n            // if the index of the dependency is in the directive range for this\n            // tNode. If it's not, we know it's a provider and skip hook registration.\n            if (tView.firstCreatePass && index >= tNode.directiveStart) {\n                ngDevMode && assertDirectiveDef(tData[index]);\n                registerPreOrderHooks(index, tData[index], tView);\n            }\n        }\n        finally {\n            ngDevMode && setInjectorProfilerContext(prevInjectContext);\n            previousInjectImplementation !== null &&\n                setInjectImplementation(previousInjectImplementation);\n            setIncludeViewProviders(previousIncludeViewProviders);\n            factory.resolving = false;\n            leaveDI();\n        }\n    }\n    return value;\n}\n/**\n * Returns the bit in an injector's bloom filter that should be used to determine whether or not\n * the directive might be provided by the injector.\n *\n * When a directive is public, it is added to the bloom filter and given a unique ID that can be\n * retrieved on the Type. When the directive isn't public or the token is not a directive `null`\n * is returned as the node injector can not possibly provide that token.\n *\n * @param token the injection token\n * @returns the matching bit to check in the bloom filter or `null` if the token is not known.\n *   When the returned value is negative then it represents special values such as `Injector`.\n */\nfunction bloomHashBitOrFactory(token) {\n    ngDevMode && assertDefined(token, 'token must be defined');\n    if (typeof token === 'string') {\n        return token.charCodeAt(0) || 0;\n    }\n    const tokenId = \n    // First check with `hasOwnProperty` so we don't get an inherited ID.\n    token.hasOwnProperty(NG_ELEMENT_ID) ? token[NG_ELEMENT_ID] : undefined;\n    // Negative token IDs are used for special objects such as `Injector`\n    if (typeof tokenId === 'number') {\n        if (tokenId >= 0) {\n            return tokenId & BLOOM_MASK;\n        }\n        else {\n            ngDevMode &&\n                assertEqual(tokenId, -1 /* InjectorMarkers.Injector */, 'Expecting to get Special Injector Id');\n            return createNodeInjector;\n        }\n    }\n    else {\n        return tokenId;\n    }\n}\nfunction bloomHasToken(bloomHash, injectorIndex, injectorView) {\n    // Create a mask that targets the specific bit associated with the directive we're looking for.\n    // JS bit operations are 32 bits, so this will be a number between 2^0 and 2^31, corresponding\n    // to bit positions 0 - 31 in a 32 bit integer.\n    const mask = 1 << bloomHash;\n    // Each bloom bucket in `injectorView` represents `BLOOM_BUCKET_BITS` number of bits of\n    // `bloomHash`. Any bits in `bloomHash` beyond `BLOOM_BUCKET_BITS` indicate the bucket offset\n    // that should be used.\n    const value = injectorView[injectorIndex + (bloomHash >> BLOOM_BUCKET_BITS)];\n    // If the bloom filter value has the bit corresponding to the directive's bloomBit flipped on,\n    // this injector is a potential match.\n    return !!(value & mask);\n}\n/** Returns true if flags prevent parent injector from being searched for tokens */\nfunction shouldSearchParent(flags, isFirstHostTNode) {\n    return !(flags & InjectFlags.Self) && !(flags & InjectFlags.Host && isFirstHostTNode);\n}\nfunction getNodeInjectorLView(nodeInjector) {\n    return nodeInjector._lView;\n}\nfunction getNodeInjectorTNode(nodeInjector) {\n    return nodeInjector._tNode;\n}\nclass NodeInjector {\n    constructor(_tNode, _lView) {\n        this._tNode = _tNode;\n        this._lView = _lView;\n    }\n    get(token, notFoundValue, flags) {\n        return getOrCreateInjectable(this._tNode, this._lView, token, convertToBitFlags(flags), notFoundValue);\n    }\n}\n/** Creates a `NodeInjector` for the current node. */\nfunction createNodeInjector() {\n    return new NodeInjector(getCurrentTNode(), getLView());\n}\n/**\n * @codeGenApi\n */\nfunction ɵɵgetInheritedFactory(type) {\n    return noSideEffects(() => {\n        const ownConstructor = type.prototype.constructor;\n        const ownFactory = ownConstructor[NG_FACTORY_DEF] || getFactoryOf(ownConstructor);\n        const objectPrototype = Object.prototype;\n        let parent = Object.getPrototypeOf(type.prototype).constructor;\n        // Go up the prototype until we hit `Object`.\n        while (parent && parent !== objectPrototype) {\n            const factory = parent[NG_FACTORY_DEF] || getFactoryOf(parent);\n            // If we hit something that has a factory and the factory isn't the same as the type,\n            // we've found the inherited factory. Note the check that the factory isn't the type's\n            // own factory is redundant in most cases, but if the user has custom decorators on the\n            // class, this lookup will start one level down in the prototype chain, causing us to\n            // find the own factory first and potentially triggering an infinite loop downstream.\n            if (factory && factory !== ownFactory) {\n                return factory;\n            }\n            parent = Object.getPrototypeOf(parent);\n        }\n        // There is no factory defined. Either this was improper usage of inheritance\n        // (no Angular decorator on the superclass) or there is no constructor at all\n        // in the inheritance chain. Since the two cases cannot be distinguished, the\n        // latter has to be assumed.\n        return (t) => new t();\n    });\n}\nfunction getFactoryOf(type) {\n    if (isForwardRef(type)) {\n        return () => {\n            const factory = getFactoryOf(resolveForwardRef(type));\n            return factory && factory();\n        };\n    }\n    return getFactoryDef(type);\n}\n/**\n * Returns a value from the closest embedded or node injector.\n *\n * @param tNode The Node where the search for the injector should start\n * @param lView The `LView` that contains the `tNode`\n * @param token The token to look for\n * @param flags Injection flags\n * @param notFoundValue The value to return when the injection flags is `InjectFlags.Optional`\n * @returns the value from the injector, `null` when not found, or `notFoundValue` if provided\n */\nfunction lookupTokenUsingEmbeddedInjector(tNode, lView, token, flags, notFoundValue) {\n    let currentTNode = tNode;\n    let currentLView = lView;\n    // When an LView with an embedded view injector is inserted, it'll likely be interlaced with\n    // nodes who may have injectors (e.g. node injector -> embedded view injector -> node injector).\n    // Since the bloom filters for the node injectors have already been constructed and we don't\n    // have a way of extracting the records from an injector, the only way to maintain the correct\n    // hierarchy when resolving the value is to walk it node-by-node while attempting to resolve\n    // the token at each level.\n    while (currentTNode !== null && currentLView !== null &&\n        (currentLView[FLAGS] & 2048 /* LViewFlags.HasEmbeddedViewInjector */) &&\n        !(currentLView[FLAGS] & 512 /* LViewFlags.IsRoot */)) {\n        ngDevMode && assertTNodeForLView(currentTNode, currentLView);\n        // Note that this lookup on the node injector is using the `Self` flag, because\n        // we don't want the node injector to look at any parent injectors since we\n        // may hit the embedded view injector first.\n        const nodeInjectorValue = lookupTokenUsingNodeInjector(currentTNode, currentLView, token, flags | InjectFlags.Self, NOT_FOUND);\n        if (nodeInjectorValue !== NOT_FOUND) {\n            return nodeInjectorValue;\n        }\n        // Has an explicit type due to a TS bug: https://github.com/microsoft/TypeScript/issues/33191\n        let parentTNode = currentTNode.parent;\n        // `TNode.parent` includes the parent within the current view only. If it doesn't exist,\n        // it means that we've hit the view boundary and we need to go up to the next view.\n        if (!parentTNode) {\n            // Before we go to the next LView, check if the token exists on the current embedded injector.\n            const embeddedViewInjector = currentLView[EMBEDDED_VIEW_INJECTOR];\n            if (embeddedViewInjector) {\n                const embeddedViewInjectorValue = embeddedViewInjector.get(token, NOT_FOUND, flags);\n                if (embeddedViewInjectorValue !== NOT_FOUND) {\n                    return embeddedViewInjectorValue;\n                }\n            }\n            // Otherwise keep going up the tree.\n            parentTNode = getTNodeFromLView(currentLView);\n            currentLView = currentLView[DECLARATION_VIEW];\n        }\n        currentTNode = parentTNode;\n    }\n    return notFoundValue;\n}\n/** Gets the TNode associated with an LView inside of the declaration view. */\nfunction getTNodeFromLView(lView) {\n    const tView = lView[TVIEW];\n    const tViewType = tView.type;\n    // The parent pointer differs based on `TView.type`.\n    if (tViewType === 2 /* TViewType.Embedded */) {\n        ngDevMode && assertDefined(tView.declTNode, 'Embedded TNodes should have declaration parents.');\n        return tView.declTNode;\n    }\n    else if (tViewType === 1 /* TViewType.Component */) {\n        // Components don't have `TView.declTNode` because each instance of component could be\n        // inserted in different location, hence `TView.declTNode` is meaningless.\n        return lView[T_HOST];\n    }\n    return null;\n}\n\n/**\n * Facade for the attribute injection from DI.\n *\n * @codeGenApi\n */\nfunction ɵɵinjectAttribute(attrNameToInject) {\n    return injectAttributeImpl(getCurrentTNode(), attrNameToInject);\n}\n\nconst ANNOTATIONS = '__annotations__';\nconst PARAMETERS = '__parameters__';\nconst PROP_METADATA = '__prop__metadata__';\n/**\n * @suppress {globalThis}\n */\nfunction makeDecorator(name, props, parentClass, additionalProcessing, typeFn) {\n    return noSideEffects(() => {\n        const metaCtor = makeMetadataCtor(props);\n        function DecoratorFactory(...args) {\n            if (this instanceof DecoratorFactory) {\n                metaCtor.call(this, ...args);\n                return this;\n            }\n            const annotationInstance = new DecoratorFactory(...args);\n            return function TypeDecorator(cls) {\n                if (typeFn)\n                    typeFn(cls, ...args);\n                // Use of Object.defineProperty is important since it creates non-enumerable property which\n                // prevents the property is copied during subclassing.\n                const annotations = cls.hasOwnProperty(ANNOTATIONS) ?\n                    cls[ANNOTATIONS] :\n                    Object.defineProperty(cls, ANNOTATIONS, { value: [] })[ANNOTATIONS];\n                annotations.push(annotationInstance);\n                if (additionalProcessing)\n                    additionalProcessing(cls);\n                return cls;\n            };\n        }\n        if (parentClass) {\n            DecoratorFactory.prototype = Object.create(parentClass.prototype);\n        }\n        DecoratorFactory.prototype.ngMetadataName = name;\n        DecoratorFactory.annotationCls = DecoratorFactory;\n        return DecoratorFactory;\n    });\n}\nfunction makeMetadataCtor(props) {\n    return function ctor(...args) {\n        if (props) {\n            const values = props(...args);\n            for (const propName in values) {\n                this[propName] = values[propName];\n            }\n        }\n    };\n}\nfunction makeParamDecorator(name, props, parentClass) {\n    return noSideEffects(() => {\n        const metaCtor = makeMetadataCtor(props);\n        function ParamDecoratorFactory(...args) {\n            if (this instanceof ParamDecoratorFactory) {\n                metaCtor.apply(this, args);\n                return this;\n            }\n            const annotationInstance = new ParamDecoratorFactory(...args);\n            ParamDecorator.annotation = annotationInstance;\n            return ParamDecorator;\n            function ParamDecorator(cls, unusedKey, index) {\n                // Use of Object.defineProperty is important since it creates non-enumerable property which\n                // prevents the property is copied during subclassing.\n                const parameters = cls.hasOwnProperty(PARAMETERS) ?\n                    cls[PARAMETERS] :\n                    Object.defineProperty(cls, PARAMETERS, { value: [] })[PARAMETERS];\n                // there might be gaps if some in between parameters do not have annotations.\n                // we pad with nulls.\n                while (parameters.length <= index) {\n                    parameters.push(null);\n                }\n                (parameters[index] = parameters[index] || []).push(annotationInstance);\n                return cls;\n            }\n        }\n        if (parentClass) {\n            ParamDecoratorFactory.prototype = Object.create(parentClass.prototype);\n        }\n        ParamDecoratorFactory.prototype.ngMetadataName = name;\n        ParamDecoratorFactory.annotationCls = ParamDecoratorFactory;\n        return ParamDecoratorFactory;\n    });\n}\nfunction makePropDecorator(name, props, parentClass, additionalProcessing) {\n    return noSideEffects(() => {\n        const metaCtor = makeMetadataCtor(props);\n        function PropDecoratorFactory(...args) {\n            if (this instanceof PropDecoratorFactory) {\n                metaCtor.apply(this, args);\n                return this;\n            }\n            const decoratorInstance = new PropDecoratorFactory(...args);\n            function PropDecorator(target, name) {\n                // target is undefined with standard decorators. This case is not supported and will throw\n                // if this decorator is used in JIT mode with standard decorators.\n                if (target === undefined) {\n                    throw new Error('Standard Angular field decorators are not supported in JIT mode.');\n                }\n                const constructor = target.constructor;\n                // Use of Object.defineProperty is important because it creates a non-enumerable property\n                // which prevents the property from being copied during subclassing.\n                const meta = constructor.hasOwnProperty(PROP_METADATA) ?\n                    constructor[PROP_METADATA] :\n                    Object.defineProperty(constructor, PROP_METADATA, { value: {} })[PROP_METADATA];\n                meta[name] = meta.hasOwnProperty(name) && meta[name] || [];\n                meta[name].unshift(decoratorInstance);\n                if (additionalProcessing)\n                    additionalProcessing(target, name, ...args);\n            }\n            return PropDecorator;\n        }\n        if (parentClass) {\n            PropDecoratorFactory.prototype = Object.create(parentClass.prototype);\n        }\n        PropDecoratorFactory.prototype.ngMetadataName = name;\n        PropDecoratorFactory.annotationCls = PropDecoratorFactory;\n        return PropDecoratorFactory;\n    });\n}\n\n/**\n * Attribute decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Attribute = makeParamDecorator('Attribute', (attributeName) => ({ attributeName, __NG_ELEMENT_ID__: () => ɵɵinjectAttribute(attributeName) }));\n\n// Stores the default value of `emitDistinctChangesOnly` when the `emitDistinctChangesOnly` is not\n// explicitly set.\nconst emitDistinctChangesOnlyDefaultValue = true;\n/**\n * Base class for query metadata.\n *\n * @see {@link ContentChildren}\n * @see {@link ContentChild}\n * @see {@link ViewChildren}\n * @see {@link ViewChild}\n *\n * @publicApi\n */\nclass Query {\n}\n/**\n * ContentChildren decorator and metadata.\n *\n *\n * @Annotation\n * @publicApi\n */\nconst ContentChildren = makePropDecorator('ContentChildren', (selector, data = {}) => ({\n    selector,\n    first: false,\n    isViewQuery: false,\n    descendants: false,\n    emitDistinctChangesOnly: emitDistinctChangesOnlyDefaultValue,\n    ...data\n}), Query);\n/**\n * ContentChild decorator and metadata.\n *\n *\n * @Annotation\n *\n * @publicApi\n */\nconst ContentChild = makePropDecorator('ContentChild', (selector, data = {}) => ({ selector, first: true, isViewQuery: false, descendants: true, ...data }), Query);\n/**\n * ViewChildren decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst ViewChildren = makePropDecorator('ViewChildren', (selector, data = {}) => ({\n    selector,\n    first: false,\n    isViewQuery: true,\n    descendants: true,\n    emitDistinctChangesOnly: emitDistinctChangesOnlyDefaultValue,\n    ...data\n}), Query);\n/**\n * ViewChild decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst ViewChild = makePropDecorator('ViewChild', (selector, data) => ({ selector, first: true, isViewQuery: true, descendants: true, ...data }), Query);\n\nvar FactoryTarget;\n(function (FactoryTarget) {\n    FactoryTarget[FactoryTarget[\"Directive\"] = 0] = \"Directive\";\n    FactoryTarget[FactoryTarget[\"Component\"] = 1] = \"Component\";\n    FactoryTarget[FactoryTarget[\"Injectable\"] = 2] = \"Injectable\";\n    FactoryTarget[FactoryTarget[\"Pipe\"] = 3] = \"Pipe\";\n    FactoryTarget[FactoryTarget[\"NgModule\"] = 4] = \"NgModule\";\n})(FactoryTarget || (FactoryTarget = {}));\nvar R3TemplateDependencyKind;\n(function (R3TemplateDependencyKind) {\n    R3TemplateDependencyKind[R3TemplateDependencyKind[\"Directive\"] = 0] = \"Directive\";\n    R3TemplateDependencyKind[R3TemplateDependencyKind[\"Pipe\"] = 1] = \"Pipe\";\n    R3TemplateDependencyKind[R3TemplateDependencyKind[\"NgModule\"] = 2] = \"NgModule\";\n})(R3TemplateDependencyKind || (R3TemplateDependencyKind = {}));\nvar ViewEncapsulation;\n(function (ViewEncapsulation) {\n    ViewEncapsulation[ViewEncapsulation[\"Emulated\"] = 0] = \"Emulated\";\n    // Historically the 1 value was for `Native` encapsulation which has been removed as of v11.\n    ViewEncapsulation[ViewEncapsulation[\"None\"] = 2] = \"None\";\n    ViewEncapsulation[ViewEncapsulation[\"ShadowDom\"] = 3] = \"ShadowDom\";\n})(ViewEncapsulation || (ViewEncapsulation = {}));\n\nfunction getCompilerFacade(request) {\n    const globalNg = _global['ng'];\n    if (globalNg && globalNg.ɵcompilerFacade) {\n        return globalNg.ɵcompilerFacade;\n    }\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        // Log the type as an error so that a developer can easily navigate to the type from the\n        // console.\n        console.error(`JIT compilation failed for ${request.kind}`, request.type);\n        let message = `The ${request.kind} '${request\n            .type.name}' needs to be compiled using the JIT compiler, but '@angular/compiler' is not available.\\n\\n`;\n        if (request.usage === 1 /* JitCompilerUsage.PartialDeclaration */) {\n            message += `The ${request.kind} is part of a library that has been partially compiled.\\n`;\n            message +=\n                `However, the Angular Linker has not processed the library such that JIT compilation is used as fallback.\\n`;\n            message += '\\n';\n            message +=\n                `Ideally, the library is processed using the Angular Linker to become fully AOT compiled.\\n`;\n        }\n        else {\n            message +=\n                `JIT compilation is discouraged for production use-cases! Consider using AOT mode instead.\\n`;\n        }\n        message +=\n            `Alternatively, the JIT compiler should be loaded by bootstrapping using '@angular/platform-browser-dynamic' or '@angular/platform-server',\\n`;\n        message +=\n            `or manually provide the compiler with 'import \"@angular/compiler\";' before bootstrapping.`;\n        throw new Error(message);\n    }\n    else {\n        throw new Error('JIT compiler unavailable');\n    }\n}\n\n/**\n * @description\n *\n * Represents a type that a Component or other object is instances of.\n *\n * An example of a `Type` is `MyCustomComponent` class, which in JavaScript is represented by\n * the `MyCustomComponent` constructor function.\n *\n * @publicApi\n */\nconst Type = Function;\nfunction isType(v) {\n    return typeof v === 'function';\n}\n\n/**\n * Determines if the contents of two arrays is identical\n *\n * @param a first array\n * @param b second array\n * @param identityAccessor Optional function for extracting stable object identity from a value in\n *     the array.\n */\nfunction arrayEquals(a, b, identityAccessor) {\n    if (a.length !== b.length)\n        return false;\n    for (let i = 0; i < a.length; i++) {\n        let valueA = a[i];\n        let valueB = b[i];\n        if (identityAccessor) {\n            valueA = identityAccessor(valueA);\n            valueB = identityAccessor(valueB);\n        }\n        if (valueB !== valueA) {\n            return false;\n        }\n    }\n    return true;\n}\n/**\n * Flattens an array.\n */\nfunction flatten(list) {\n    return list.flat(Number.POSITIVE_INFINITY);\n}\nfunction deepForEach(input, fn) {\n    input.forEach(value => Array.isArray(value) ? deepForEach(value, fn) : fn(value));\n}\nfunction addToArray(arr, index, value) {\n    // perf: array.push is faster than array.splice!\n    if (index >= arr.length) {\n        arr.push(value);\n    }\n    else {\n        arr.splice(index, 0, value);\n    }\n}\nfunction removeFromArray(arr, index) {\n    // perf: array.pop is faster than array.splice!\n    if (index >= arr.length - 1) {\n        return arr.pop();\n    }\n    else {\n        return arr.splice(index, 1)[0];\n    }\n}\nfunction newArray(size, value) {\n    const list = [];\n    for (let i = 0; i < size; i++) {\n        list.push(value);\n    }\n    return list;\n}\n/**\n * Remove item from array (Same as `Array.splice()` but faster.)\n *\n * `Array.splice()` is not as fast because it has to allocate an array for the elements which were\n * removed. This causes memory pressure and slows down code when most of the time we don't\n * care about the deleted items array.\n *\n * https://jsperf.com/fast-array-splice (About 20x faster)\n *\n * @param array Array to splice\n * @param index Index of element in array to remove.\n * @param count Number of items to remove.\n */\nfunction arraySplice(array, index, count) {\n    const length = array.length - count;\n    while (index < length) {\n        array[index] = array[index + count];\n        index++;\n    }\n    while (count--) {\n        array.pop(); // shrink the array\n    }\n}\n/**\n * Same as `Array.splice(index, 0, value)` but faster.\n *\n * `Array.splice()` is not fast because it has to allocate an array for the elements which were\n * removed. This causes memory pressure and slows down code when most of the time we don't\n * care about the deleted items array.\n *\n * @param array Array to splice.\n * @param index Index in array where the `value` should be added.\n * @param value Value to add to array.\n */\nfunction arrayInsert(array, index, value) {\n    ngDevMode && assertLessThanOrEqual(index, array.length, 'Can\\'t insert past array end.');\n    let end = array.length;\n    while (end > index) {\n        const previousEnd = end - 1;\n        array[end] = array[previousEnd];\n        end = previousEnd;\n    }\n    array[index] = value;\n}\n/**\n * Same as `Array.splice2(index, 0, value1, value2)` but faster.\n *\n * `Array.splice()` is not fast because it has to allocate an array for the elements which were\n * removed. This causes memory pressure and slows down code when most of the time we don't\n * care about the deleted items array.\n *\n * @param array Array to splice.\n * @param index Index in array where the `value` should be added.\n * @param value1 Value to add to array.\n * @param value2 Value to add to array.\n */\nfunction arrayInsert2(array, index, value1, value2) {\n    ngDevMode && assertLessThanOrEqual(index, array.length, 'Can\\'t insert past array end.');\n    let end = array.length;\n    if (end == index) {\n        // inserting at the end.\n        array.push(value1, value2);\n    }\n    else if (end === 1) {\n        // corner case when we have less items in array than we have items to insert.\n        array.push(value2, array[0]);\n        array[0] = value1;\n    }\n    else {\n        end--;\n        array.push(array[end - 1], array[end]);\n        while (end > index) {\n            const previousEnd = end - 2;\n            array[end] = array[previousEnd];\n            end--;\n        }\n        array[index] = value1;\n        array[index + 1] = value2;\n    }\n}\n/**\n * Get an index of an `value` in a sorted `array`.\n *\n * NOTE:\n * - This uses binary search algorithm for fast removals.\n *\n * @param array A sorted array to binary search.\n * @param value The value to look for.\n * @returns index of the value.\n *   - positive index if value found.\n *   - negative index if value not found. (`~index` to get the value where it should have been\n *     located)\n */\nfunction arrayIndexOfSorted(array, value) {\n    return _arrayIndexOfSorted(array, value, 0);\n}\n/**\n * Set a `value` for a `key`.\n *\n * @param keyValueArray to modify.\n * @param key The key to locate or create.\n * @param value The value to set for a `key`.\n * @returns index (always even) of where the value vas set.\n */\nfunction keyValueArraySet(keyValueArray, key, value) {\n    let index = keyValueArrayIndexOf(keyValueArray, key);\n    if (index >= 0) {\n        // if we found it set it.\n        keyValueArray[index | 1] = value;\n    }\n    else {\n        index = ~index;\n        arrayInsert2(keyValueArray, index, key, value);\n    }\n    return index;\n}\n/**\n * Retrieve a `value` for a `key` (on `undefined` if not found.)\n *\n * @param keyValueArray to search.\n * @param key The key to locate.\n * @return The `value` stored at the `key` location or `undefined if not found.\n */\nfunction keyValueArrayGet(keyValueArray, key) {\n    const index = keyValueArrayIndexOf(keyValueArray, key);\n    if (index >= 0) {\n        // if we found it retrieve it.\n        return keyValueArray[index | 1];\n    }\n    return undefined;\n}\n/**\n * Retrieve a `key` index value in the array or `-1` if not found.\n *\n * @param keyValueArray to search.\n * @param key The key to locate.\n * @returns index of where the key is (or should have been.)\n *   - positive (even) index if key found.\n *   - negative index if key not found. (`~index` (even) to get the index where it should have\n *     been inserted.)\n */\nfunction keyValueArrayIndexOf(keyValueArray, key) {\n    return _arrayIndexOfSorted(keyValueArray, key, 1);\n}\n/**\n * Delete a `key` (and `value`) from the `KeyValueArray`.\n *\n * @param keyValueArray to modify.\n * @param key The key to locate or delete (if exist).\n * @returns index of where the key was (or should have been.)\n *   - positive (even) index if key found and deleted.\n *   - negative index if key not found. (`~index` (even) to get the index where it should have\n *     been.)\n */\nfunction keyValueArrayDelete(keyValueArray, key) {\n    const index = keyValueArrayIndexOf(keyValueArray, key);\n    if (index >= 0) {\n        // if we found it remove it.\n        arraySplice(keyValueArray, index, 2);\n    }\n    return index;\n}\n/**\n * INTERNAL: Get an index of an `value` in a sorted `array` by grouping search by `shift`.\n *\n * NOTE:\n * - This uses binary search algorithm for fast removals.\n *\n * @param array A sorted array to binary search.\n * @param value The value to look for.\n * @param shift grouping shift.\n *   - `0` means look at every location\n *   - `1` means only look at every other (even) location (the odd locations are to be ignored as\n *         they are values.)\n * @returns index of the value.\n *   - positive index if value found.\n *   - negative index if value not found. (`~index` to get the value where it should have been\n * inserted)\n */\nfunction _arrayIndexOfSorted(array, value, shift) {\n    ngDevMode && assertEqual(Array.isArray(array), true, 'Expecting an array');\n    let start = 0;\n    let end = array.length >> shift;\n    while (end !== start) {\n        const middle = start + ((end - start) >> 1); // find the middle.\n        const current = array[middle << shift];\n        if (value === current) {\n            return (middle << shift);\n        }\n        else if (current > value) {\n            end = middle;\n        }\n        else {\n            start = middle + 1; // We already searched middle so make it non-inclusive by adding 1\n        }\n    }\n    return ~(end << shift);\n}\n\n/*\n * #########################\n * Attention: These Regular expressions have to hold even if the code is minified!\n * ##########################\n */\n/**\n * Regular expression that detects pass-through constructors for ES5 output. This Regex\n * intends to capture the common delegation pattern emitted by TypeScript and Babel. Also\n * it intends to capture the pattern where existing constructors have been downleveled from\n * ES2015 to ES5 using TypeScript w/ downlevel iteration. e.g.\n *\n * ```\n *   function MyClass() {\n *     var _this = _super.apply(this, arguments) || this;\n * ```\n *\n * downleveled to ES5 with `downlevelIteration` for TypeScript < 4.2:\n * ```\n *   function MyClass() {\n *     var _this = _super.apply(this, __spread(arguments)) || this;\n * ```\n *\n * or downleveled to ES5 with `downlevelIteration` for TypeScript >= 4.2:\n * ```\n *   function MyClass() {\n *     var _this = _super.apply(this, __spreadArray([], __read(arguments), false)) || this;\n * ```\n *\n * More details can be found in: https://github.com/angular/angular/issues/38453.\n */\nconst ES5_DELEGATE_CTOR = /^function\\s+\\S+\\(\\)\\s*{[\\s\\S]+\\.apply\\(this,\\s*(arguments|(?:[^()]+\\(\\[\\],)?[^()]+\\(arguments\\).*)\\)/;\n/** Regular expression that detects ES2015 classes which extend from other classes. */\nconst ES2015_INHERITED_CLASS = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{/;\n/**\n * Regular expression that detects ES2015 classes which extend from other classes and\n * have an explicit constructor defined.\n */\nconst ES2015_INHERITED_CLASS_WITH_CTOR = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{[\\s\\S]*constructor\\s*\\(/;\n/**\n * Regular expression that detects ES2015 classes which extend from other classes\n * and inherit a constructor.\n */\nconst ES2015_INHERITED_CLASS_WITH_DELEGATE_CTOR = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{[\\s\\S]*constructor\\s*\\(\\)\\s*{[^}]*super\\(\\.\\.\\.arguments\\)/;\n/**\n * Determine whether a stringified type is a class which delegates its constructor\n * to its parent.\n *\n * This is not trivial since compiled code can actually contain a constructor function\n * even if the original source code did not. For instance, when the child class contains\n * an initialized instance property.\n */\nfunction isDelegateCtor(typeStr) {\n    return ES5_DELEGATE_CTOR.test(typeStr) ||\n        ES2015_INHERITED_CLASS_WITH_DELEGATE_CTOR.test(typeStr) ||\n        (ES2015_INHERITED_CLASS.test(typeStr) && !ES2015_INHERITED_CLASS_WITH_CTOR.test(typeStr));\n}\nclass ReflectionCapabilities {\n    constructor(reflect) {\n        this._reflect = reflect || _global['Reflect'];\n    }\n    factory(t) {\n        return (...args) => new t(...args);\n    }\n    /** @internal */\n    _zipTypesAndAnnotations(paramTypes, paramAnnotations) {\n        let result;\n        if (typeof paramTypes === 'undefined') {\n            result = newArray(paramAnnotations.length);\n        }\n        else {\n            result = newArray(paramTypes.length);\n        }\n        for (let i = 0; i < result.length; i++) {\n            // TS outputs Object for parameters without types, while Traceur omits\n            // the annotations. For now we preserve the Traceur behavior to aid\n            // migration, but this can be revisited.\n            if (typeof paramTypes === 'undefined') {\n                result[i] = [];\n            }\n            else if (paramTypes[i] && paramTypes[i] != Object) {\n                result[i] = [paramTypes[i]];\n            }\n            else {\n                result[i] = [];\n            }\n            if (paramAnnotations && paramAnnotations[i] != null) {\n                result[i] = result[i].concat(paramAnnotations[i]);\n            }\n        }\n        return result;\n    }\n    _ownParameters(type, parentCtor) {\n        const typeStr = type.toString();\n        // If we have no decorators, we only have function.length as metadata.\n        // In that case, to detect whether a child class declared an own constructor or not,\n        // we need to look inside of that constructor to check whether it is\n        // just calling the parent.\n        // This also helps to work around for https://github.com/Microsoft/TypeScript/issues/12439\n        // that sets 'design:paramtypes' to []\n        // if a class inherits from another class but has no ctor declared itself.\n        if (isDelegateCtor(typeStr)) {\n            return null;\n        }\n        // Prefer the direct API.\n        if (type.parameters && type.parameters !== parentCtor.parameters) {\n            return type.parameters;\n        }\n        // API of tsickle for lowering decorators to properties on the class.\n        const tsickleCtorParams = type.ctorParameters;\n        if (tsickleCtorParams && tsickleCtorParams !== parentCtor.ctorParameters) {\n            // Newer tsickle uses a function closure\n            // Retain the non-function case for compatibility with older tsickle\n            const ctorParameters = typeof tsickleCtorParams === 'function' ? tsickleCtorParams() : tsickleCtorParams;\n            const paramTypes = ctorParameters.map((ctorParam) => ctorParam && ctorParam.type);\n            const paramAnnotations = ctorParameters.map((ctorParam) => ctorParam && convertTsickleDecoratorIntoMetadata(ctorParam.decorators));\n            return this._zipTypesAndAnnotations(paramTypes, paramAnnotations);\n        }\n        // API for metadata created by invoking the decorators.\n        const paramAnnotations = type.hasOwnProperty(PARAMETERS) && type[PARAMETERS];\n        const paramTypes = this._reflect && this._reflect.getOwnMetadata &&\n            this._reflect.getOwnMetadata('design:paramtypes', type);\n        if (paramTypes || paramAnnotations) {\n            return this._zipTypesAndAnnotations(paramTypes, paramAnnotations);\n        }\n        // If a class has no decorators, at least create metadata\n        // based on function.length.\n        // Note: We know that this is a real constructor as we checked\n        // the content of the constructor above.\n        return newArray(type.length);\n    }\n    parameters(type) {\n        // Note: only report metadata if we have at least one class decorator\n        // to stay in sync with the static reflector.\n        if (!isType(type)) {\n            return [];\n        }\n        const parentCtor = getParentCtor(type);\n        let parameters = this._ownParameters(type, parentCtor);\n        if (!parameters && parentCtor !== Object) {\n            parameters = this.parameters(parentCtor);\n        }\n        return parameters || [];\n    }\n    _ownAnnotations(typeOrFunc, parentCtor) {\n        // Prefer the direct API.\n        if (typeOrFunc.annotations && typeOrFunc.annotations !== parentCtor.annotations) {\n            let annotations = typeOrFunc.annotations;\n            if (typeof annotations === 'function' && annotations.annotations) {\n                annotations = annotations.annotations;\n            }\n            return annotations;\n        }\n        // API of tsickle for lowering decorators to properties on the class.\n        if (typeOrFunc.decorators && typeOrFunc.decorators !== parentCtor.decorators) {\n            return convertTsickleDecoratorIntoMetadata(typeOrFunc.decorators);\n        }\n        // API for metadata created by invoking the decorators.\n        if (typeOrFunc.hasOwnProperty(ANNOTATIONS)) {\n            return typeOrFunc[ANNOTATIONS];\n        }\n        return null;\n    }\n    annotations(typeOrFunc) {\n        if (!isType(typeOrFunc)) {\n            return [];\n        }\n        const parentCtor = getParentCtor(typeOrFunc);\n        const ownAnnotations = this._ownAnnotations(typeOrFunc, parentCtor) || [];\n        const parentAnnotations = parentCtor !== Object ? this.annotations(parentCtor) : [];\n        return parentAnnotations.concat(ownAnnotations);\n    }\n    _ownPropMetadata(typeOrFunc, parentCtor) {\n        // Prefer the direct API.\n        if (typeOrFunc.propMetadata &&\n            typeOrFunc.propMetadata !== parentCtor.propMetadata) {\n            let propMetadata = typeOrFunc.propMetadata;\n            if (typeof propMetadata === 'function' && propMetadata.propMetadata) {\n                propMetadata = propMetadata.propMetadata;\n            }\n            return propMetadata;\n        }\n        // API of tsickle for lowering decorators to properties on the class.\n        if (typeOrFunc.propDecorators &&\n            typeOrFunc.propDecorators !== parentCtor.propDecorators) {\n            const propDecorators = typeOrFunc.propDecorators;\n            const propMetadata = {};\n            Object.keys(propDecorators).forEach(prop => {\n                propMetadata[prop] = convertTsickleDecoratorIntoMetadata(propDecorators[prop]);\n            });\n            return propMetadata;\n        }\n        // API for metadata created by invoking the decorators.\n        if (typeOrFunc.hasOwnProperty(PROP_METADATA)) {\n            return typeOrFunc[PROP_METADATA];\n        }\n        return null;\n    }\n    propMetadata(typeOrFunc) {\n        if (!isType(typeOrFunc)) {\n            return {};\n        }\n        const parentCtor = getParentCtor(typeOrFunc);\n        const propMetadata = {};\n        if (parentCtor !== Object) {\n            const parentPropMetadata = this.propMetadata(parentCtor);\n            Object.keys(parentPropMetadata).forEach((propName) => {\n                propMetadata[propName] = parentPropMetadata[propName];\n            });\n        }\n        const ownPropMetadata = this._ownPropMetadata(typeOrFunc, parentCtor);\n        if (ownPropMetadata) {\n            Object.keys(ownPropMetadata).forEach((propName) => {\n                const decorators = [];\n                if (propMetadata.hasOwnProperty(propName)) {\n                    decorators.push(...propMetadata[propName]);\n                }\n                decorators.push(...ownPropMetadata[propName]);\n                propMetadata[propName] = decorators;\n            });\n        }\n        return propMetadata;\n    }\n    ownPropMetadata(typeOrFunc) {\n        if (!isType(typeOrFunc)) {\n            return {};\n        }\n        return this._ownPropMetadata(typeOrFunc, getParentCtor(typeOrFunc)) || {};\n    }\n    hasLifecycleHook(type, lcProperty) {\n        return type instanceof Type && lcProperty in type.prototype;\n    }\n}\nfunction convertTsickleDecoratorIntoMetadata(decoratorInvocations) {\n    if (!decoratorInvocations) {\n        return [];\n    }\n    return decoratorInvocations.map(decoratorInvocation => {\n        const decoratorType = decoratorInvocation.type;\n        const annotationCls = decoratorType.annotationCls;\n        const annotationArgs = decoratorInvocation.args ? decoratorInvocation.args : [];\n        return new annotationCls(...annotationArgs);\n    });\n}\nfunction getParentCtor(ctor) {\n    const parentProto = ctor.prototype ? Object.getPrototypeOf(ctor.prototype) : null;\n    const parentCtor = parentProto ? parentProto.constructor : null;\n    // Note: We always use `Object` as the null value\n    // to simplify checking later on.\n    return parentCtor || Object;\n}\n\n/**\n * Inject decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Inject = attachInjectFlag(\n// Disable tslint because `DecoratorFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nmakeParamDecorator('Inject', (token) => ({ token })), -1 /* DecoratorFlags.Inject */);\n/**\n * Optional decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Optional = \n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('Optional'), 8 /* InternalInjectFlags.Optional */);\n/**\n * Self decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Self = \n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('Self'), 2 /* InternalInjectFlags.Self */);\n/**\n * `SkipSelf` decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst SkipSelf = \n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('SkipSelf'), 4 /* InternalInjectFlags.SkipSelf */);\n/**\n * Host decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Host = \n// Disable tslint because `InternalInjectFlags` is a const enum which gets inlined.\n// tslint:disable-next-line: no-toplevel-property-access\nattachInjectFlag(makeParamDecorator('Host'), 1 /* InternalInjectFlags.Host */);\n\nlet _reflect = null;\nfunction getReflect() {\n    return (_reflect = _reflect || new ReflectionCapabilities());\n}\nfunction reflectDependencies(type) {\n    return convertDependencies(getReflect().parameters(type));\n}\nfunction convertDependencies(deps) {\n    return deps.map(dep => reflectDependency(dep));\n}\nfunction reflectDependency(dep) {\n    const meta = {\n        token: null,\n        attribute: null,\n        host: false,\n        optional: false,\n        self: false,\n        skipSelf: false,\n    };\n    if (Array.isArray(dep) && dep.length > 0) {\n        for (let j = 0; j < dep.length; j++) {\n            const param = dep[j];\n            if (param === undefined) {\n                // param may be undefined if type of dep is not set by ngtsc\n                continue;\n            }\n            const proto = Object.getPrototypeOf(param);\n            if (param instanceof Optional || proto.ngMetadataName === 'Optional') {\n                meta.optional = true;\n            }\n            else if (param instanceof SkipSelf || proto.ngMetadataName === 'SkipSelf') {\n                meta.skipSelf = true;\n            }\n            else if (param instanceof Self || proto.ngMetadataName === 'Self') {\n                meta.self = true;\n            }\n            else if (param instanceof Host || proto.ngMetadataName === 'Host') {\n                meta.host = true;\n            }\n            else if (param instanceof Inject) {\n                meta.token = param.token;\n            }\n            else if (param instanceof Attribute) {\n                if (param.attributeName === undefined) {\n                    throw new RuntimeError(204 /* RuntimeErrorCode.INVALID_INJECTION_TOKEN */, ngDevMode && `Attribute name must be defined.`);\n                }\n                meta.attribute = param.attributeName;\n            }\n            else {\n                meta.token = param;\n            }\n        }\n    }\n    else if (dep === undefined || (Array.isArray(dep) && dep.length === 0)) {\n        meta.token = null;\n    }\n    else {\n        meta.token = dep;\n    }\n    return meta;\n}\n\n/**\n * Used to resolve resource URLs on `@Component` when used with JIT compilation.\n *\n * Example:\n * ```\n * @Component({\n *   selector: 'my-comp',\n *   templateUrl: 'my-comp.html', // This requires asynchronous resolution\n * })\n * class MyComponent{\n * }\n *\n * // Calling `renderComponent` will fail because `renderComponent` is a synchronous process\n * // and `MyComponent`'s `@Component.templateUrl` needs to be resolved asynchronously.\n *\n * // Calling `resolveComponentResources()` will resolve `@Component.templateUrl` into\n * // `@Component.template`, which allows `renderComponent` to proceed in a synchronous manner.\n *\n * // Use browser's `fetch()` function as the default resource resolution strategy.\n * resolveComponentResources(fetch).then(() => {\n *   // After resolution all URLs have been converted into `template` strings.\n *   renderComponent(MyComponent);\n * });\n *\n * ```\n *\n * NOTE: In AOT the resolution happens during compilation, and so there should be no need\n * to call this method outside JIT mode.\n *\n * @param resourceResolver a function which is responsible for returning a `Promise` to the\n * contents of the resolved URL. Browser's `fetch()` method is a good default implementation.\n */\nfunction resolveComponentResources(resourceResolver) {\n    // Store all promises which are fetching the resources.\n    const componentResolved = [];\n    // Cache so that we don't fetch the same resource more than once.\n    const urlMap = new Map();\n    function cachedResourceResolve(url) {\n        let promise = urlMap.get(url);\n        if (!promise) {\n            const resp = resourceResolver(url);\n            urlMap.set(url, promise = resp.then(unwrapResponse));\n        }\n        return promise;\n    }\n    componentResourceResolutionQueue.forEach((component, type) => {\n        const promises = [];\n        if (component.templateUrl) {\n            promises.push(cachedResourceResolve(component.templateUrl).then((template) => {\n                component.template = template;\n            }));\n        }\n        const styleUrls = component.styleUrls;\n        const styles = component.styles || (component.styles = []);\n        const styleOffset = component.styles.length;\n        styleUrls && styleUrls.forEach((styleUrl, index) => {\n            styles.push(''); // pre-allocate array.\n            promises.push(cachedResourceResolve(styleUrl).then((style) => {\n                styles[styleOffset + index] = style;\n                styleUrls.splice(styleUrls.indexOf(styleUrl), 1);\n                if (styleUrls.length == 0) {\n                    component.styleUrls = undefined;\n                }\n            }));\n        });\n        const fullyResolved = Promise.all(promises).then(() => componentDefResolved(type));\n        componentResolved.push(fullyResolved);\n    });\n    clearResolutionOfComponentResourcesQueue();\n    return Promise.all(componentResolved).then(() => undefined);\n}\nlet componentResourceResolutionQueue = new Map();\n// Track when existing ɵcmp for a Type is waiting on resources.\nconst componentDefPendingResolution = new Set();\nfunction maybeQueueResolutionOfComponentResources(type, metadata) {\n    if (componentNeedsResolution(metadata)) {\n        componentResourceResolutionQueue.set(type, metadata);\n        componentDefPendingResolution.add(type);\n    }\n}\nfunction isComponentDefPendingResolution(type) {\n    return componentDefPendingResolution.has(type);\n}\nfunction componentNeedsResolution(component) {\n    return !!((component.templateUrl && !component.hasOwnProperty('template')) ||\n        component.styleUrls && component.styleUrls.length);\n}\nfunction clearResolutionOfComponentResourcesQueue() {\n    const old = componentResourceResolutionQueue;\n    componentResourceResolutionQueue = new Map();\n    return old;\n}\nfunction restoreComponentResolutionQueue(queue) {\n    componentDefPendingResolution.clear();\n    queue.forEach((_, type) => componentDefPendingResolution.add(type));\n    componentResourceResolutionQueue = queue;\n}\nfunction isComponentResourceResolutionQueueEmpty() {\n    return componentResourceResolutionQueue.size === 0;\n}\nfunction unwrapResponse(response) {\n    return typeof response == 'string' ? response : response.text();\n}\nfunction componentDefResolved(type) {\n    componentDefPendingResolution.delete(type);\n}\n\n/**\n * Map of module-id to the corresponding NgModule.\n */\nconst modules = new Map();\n/**\n * Whether to check for duplicate NgModule registrations.\n *\n * This can be disabled for testing.\n */\nlet checkForDuplicateNgModules = true;\nfunction assertSameOrNotExisting(id, type, incoming) {\n    if (type && type !== incoming && checkForDuplicateNgModules) {\n        throw new Error(`Duplicate module registered for ${id} - ${stringify(type)} vs ${stringify(type.name)}`);\n    }\n}\n/**\n * Adds the given NgModule type to Angular's NgModule registry.\n *\n * This is generated as a side-effect of NgModule compilation. Note that the `id` is passed in\n * explicitly and not read from the NgModule definition. This is for two reasons: it avoids a\n * megamorphic read, and in JIT there's a chicken-and-egg problem where the NgModule may not be\n * fully resolved when it's registered.\n *\n * @codeGenApi\n */\nfunction registerNgModuleType(ngModuleType, id) {\n    const existing = modules.get(id) || null;\n    assertSameOrNotExisting(id, existing, ngModuleType);\n    modules.set(id, ngModuleType);\n}\nfunction clearModulesForTest() {\n    modules.clear();\n}\nfunction getRegisteredNgModuleType(id) {\n    return modules.get(id);\n}\n/**\n * Control whether the NgModule registration system enforces that each NgModule type registered has\n * a unique id.\n *\n * This is useful for testing as the NgModule registry cannot be properly reset between tests with\n * Angular's current API.\n */\nfunction setAllowDuplicateNgModuleIdsForTest(allowDuplicates) {\n    checkForDuplicateNgModules = !allowDuplicates;\n}\n\n/**\n * Defines a schema that allows an NgModule to contain the following:\n * - Non-Angular elements named with dash case (`-`).\n * - Element properties named with dash case (`-`).\n * Dash case is the naming convention for custom elements.\n *\n * @publicApi\n */\nconst CUSTOM_ELEMENTS_SCHEMA = {\n    name: 'custom-elements'\n};\n/**\n * Defines a schema that allows any property on any element.\n *\n * This schema allows you to ignore the errors related to any unknown elements or properties in a\n * template. The usage of this schema is generally discouraged because it prevents useful validation\n * and may hide real errors in your template. Consider using the `CUSTOM_ELEMENTS_SCHEMA` instead.\n *\n * @publicApi\n */\nconst NO_ERRORS_SCHEMA = {\n    name: 'no-errors-schema'\n};\n\nlet shouldThrowErrorOnUnknownElement = false;\n/**\n * Sets a strict mode for JIT-compiled components to throw an error on unknown elements,\n * instead of just logging the error.\n * (for AOT-compiled ones this check happens at build time).\n */\nfunction ɵsetUnknownElementStrictMode(shouldThrow) {\n    shouldThrowErrorOnUnknownElement = shouldThrow;\n}\n/**\n * Gets the current value of the strict mode.\n */\nfunction ɵgetUnknownElementStrictMode() {\n    return shouldThrowErrorOnUnknownElement;\n}\nlet shouldThrowErrorOnUnknownProperty = false;\n/**\n * Sets a strict mode for JIT-compiled components to throw an error on unknown properties,\n * instead of just logging the error.\n * (for AOT-compiled ones this check happens at build time).\n */\nfunction ɵsetUnknownPropertyStrictMode(shouldThrow) {\n    shouldThrowErrorOnUnknownProperty = shouldThrow;\n}\n/**\n * Gets the current value of the strict mode.\n */\nfunction ɵgetUnknownPropertyStrictMode() {\n    return shouldThrowErrorOnUnknownProperty;\n}\n/**\n * Validates that the element is known at runtime and produces\n * an error if it's not the case.\n * This check is relevant for JIT-compiled components (for AOT-compiled\n * ones this check happens at build time).\n *\n * The element is considered known if either:\n * - it's a known HTML element\n * - it's a known custom element\n * - the element matches any directive\n * - the element is allowed by one of the schemas\n *\n * @param element Element to validate\n * @param lView An `LView` that represents a current component that is being rendered\n * @param tagName Name of the tag to check\n * @param schemas Array of schemas\n * @param hasDirectives Boolean indicating that the element matches any directive\n */\nfunction validateElementIsKnown(element, lView, tagName, schemas, hasDirectives) {\n    // If `schemas` is set to `null`, that's an indication that this Component was compiled in AOT\n    // mode where this check happens at compile time. In JIT mode, `schemas` is always present and\n    // defined as an array (as an empty array in case `schemas` field is not defined) and we should\n    // execute the check below.\n    if (schemas === null)\n        return;\n    // If the element matches any directive, it's considered as valid.\n    if (!hasDirectives && tagName !== null) {\n        // The element is unknown if it's an instance of HTMLUnknownElement, or it isn't registered\n        // as a custom element. Note that unknown elements with a dash in their name won't be instances\n        // of HTMLUnknownElement in browsers that support web components.\n        const isUnknown = \n        // Note that we can't check for `typeof HTMLUnknownElement === 'function'` because\n        // Domino doesn't expose HTMLUnknownElement globally.\n        (typeof HTMLUnknownElement !== 'undefined' && HTMLUnknownElement &&\n            element instanceof HTMLUnknownElement) ||\n            (typeof customElements !== 'undefined' && tagName.indexOf('-') > -1 &&\n                !customElements.get(tagName));\n        if (isUnknown && !matchingSchemas(schemas, tagName)) {\n            const isHostStandalone = isHostComponentStandalone(lView);\n            const templateLocation = getTemplateLocationDetails(lView);\n            const schemas = `'${isHostStandalone ? '@Component' : '@NgModule'}.schemas'`;\n            let message = `'${tagName}' is not a known element${templateLocation}:\\n`;\n            message += `1. If '${tagName}' is an Angular component, then verify that it is ${isHostStandalone ? 'included in the \\'@Component.imports\\' of this component' :\n                'a part of an @NgModule where this component is declared'}.\\n`;\n            if (tagName && tagName.indexOf('-') > -1) {\n                message +=\n                    `2. If '${tagName}' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the ${schemas} of this component to suppress this message.`;\n            }\n            else {\n                message +=\n                    `2. To allow any element add 'NO_ERRORS_SCHEMA' to the ${schemas} of this component.`;\n            }\n            if (shouldThrowErrorOnUnknownElement) {\n                throw new RuntimeError(304 /* RuntimeErrorCode.UNKNOWN_ELEMENT */, message);\n            }\n            else {\n                console.error(formatRuntimeError(304 /* RuntimeErrorCode.UNKNOWN_ELEMENT */, message));\n            }\n        }\n    }\n}\n/**\n * Validates that the property of the element is known at runtime and returns\n * false if it's not the case.\n * This check is relevant for JIT-compiled components (for AOT-compiled\n * ones this check happens at build time).\n *\n * The property is considered known if either:\n * - it's a known property of the element\n * - the element is allowed by one of the schemas\n * - the property is used for animations\n *\n * @param element Element to validate\n * @param propName Name of the property to check\n * @param tagName Name of the tag hosting the property\n * @param schemas Array of schemas\n */\nfunction isPropertyValid(element, propName, tagName, schemas) {\n    // If `schemas` is set to `null`, that's an indication that this Component was compiled in AOT\n    // mode where this check happens at compile time. In JIT mode, `schemas` is always present and\n    // defined as an array (as an empty array in case `schemas` field is not defined) and we should\n    // execute the check below.\n    if (schemas === null)\n        return true;\n    // The property is considered valid if the element matches the schema, it exists on the element,\n    // or it is synthetic.\n    if (matchingSchemas(schemas, tagName) || propName in element || isAnimationProp(propName)) {\n        return true;\n    }\n    // Note: `typeof Node` returns 'function' in most browsers, but is undefined with domino.\n    return typeof Node === 'undefined' || Node === null || !(element instanceof Node);\n}\n/**\n * Logs or throws an error that a property is not supported on an element.\n *\n * @param propName Name of the invalid property\n * @param tagName Name of the tag hosting the property\n * @param nodeType Type of the node hosting the property\n * @param lView An `LView` that represents a current component\n */\nfunction handleUnknownPropertyError(propName, tagName, nodeType, lView) {\n    // Special-case a situation when a structural directive is applied to\n    // an `<ng-template>` element, for example: `<ng-template *ngIf=\"true\">`.\n    // In this case the compiler generates the `ɵɵtemplate` instruction with\n    // the `null` as the tagName. The directive matching logic at runtime relies\n    // on this effect (see `isInlineTemplate`), thus using the 'ng-template' as\n    // a default value of the `tNode.value` is not feasible at this moment.\n    if (!tagName && nodeType === 4 /* TNodeType.Container */) {\n        tagName = 'ng-template';\n    }\n    const isHostStandalone = isHostComponentStandalone(lView);\n    const templateLocation = getTemplateLocationDetails(lView);\n    let message = `Can't bind to '${propName}' since it isn't a known property of '${tagName}'${templateLocation}.`;\n    const schemas = `'${isHostStandalone ? '@Component' : '@NgModule'}.schemas'`;\n    const importLocation = isHostStandalone ?\n        'included in the \\'@Component.imports\\' of this component' :\n        'a part of an @NgModule where this component is declared';\n    if (KNOWN_CONTROL_FLOW_DIRECTIVES.has(propName)) {\n        // Most likely this is a control flow directive (such as `*ngIf`) used in\n        // a template, but the directive or the `CommonModule` is not imported.\n        const correspondingImport = KNOWN_CONTROL_FLOW_DIRECTIVES.get(propName);\n        message += `\\nIf the '${propName}' is an Angular control flow directive, ` +\n            `please make sure that either the '${correspondingImport}' directive or the 'CommonModule' is ${importLocation}.`;\n    }\n    else {\n        // May be an Angular component, which is not imported/declared?\n        message += `\\n1. If '${tagName}' is an Angular component and it has the ` +\n            `'${propName}' input, then verify that it is ${importLocation}.`;\n        // May be a Web Component?\n        if (tagName && tagName.indexOf('-') > -1) {\n            message += `\\n2. If '${tagName}' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' ` +\n                `to the ${schemas} of this component to suppress this message.`;\n            message += `\\n3. To allow any property add 'NO_ERRORS_SCHEMA' to ` +\n                `the ${schemas} of this component.`;\n        }\n        else {\n            // If it's expected, the error can be suppressed by the `NO_ERRORS_SCHEMA` schema.\n            message += `\\n2. To allow any property add 'NO_ERRORS_SCHEMA' to ` +\n                `the ${schemas} of this component.`;\n        }\n    }\n    reportUnknownPropertyError(message);\n}\nfunction reportUnknownPropertyError(message) {\n    if (shouldThrowErrorOnUnknownProperty) {\n        throw new RuntimeError(303 /* RuntimeErrorCode.UNKNOWN_BINDING */, message);\n    }\n    else {\n        console.error(formatRuntimeError(303 /* RuntimeErrorCode.UNKNOWN_BINDING */, message));\n    }\n}\n/**\n * WARNING: this is a **dev-mode only** function (thus should always be guarded by the `ngDevMode`)\n * and must **not** be used in production bundles. The function makes megamorphic reads, which might\n * be too slow for production mode and also it relies on the constructor function being available.\n *\n * Gets a reference to the host component def (where a current component is declared).\n *\n * @param lView An `LView` that represents a current component that is being rendered.\n */\nfunction getDeclarationComponentDef(lView) {\n    !ngDevMode && throwError('Must never be called in production mode');\n    const declarationLView = lView[DECLARATION_COMPONENT_VIEW];\n    const context = declarationLView[CONTEXT];\n    // Unable to obtain a context.\n    if (!context)\n        return null;\n    return context.constructor ? getComponentDef(context.constructor) : null;\n}\n/**\n * WARNING: this is a **dev-mode only** function (thus should always be guarded by the `ngDevMode`)\n * and must **not** be used in production bundles. The function makes megamorphic reads, which might\n * be too slow for production mode.\n *\n * Checks if the current component is declared inside of a standalone component template.\n *\n * @param lView An `LView` that represents a current component that is being rendered.\n */\nfunction isHostComponentStandalone(lView) {\n    !ngDevMode && throwError('Must never be called in production mode');\n    const componentDef = getDeclarationComponentDef(lView);\n    // Treat host component as non-standalone if we can't obtain the def.\n    return !!componentDef?.standalone;\n}\n/**\n * WARNING: this is a **dev-mode only** function (thus should always be guarded by the `ngDevMode`)\n * and must **not** be used in production bundles. The function makes megamorphic reads, which might\n * be too slow for production mode.\n *\n * Constructs a string describing the location of the host component template. The function is used\n * in dev mode to produce error messages.\n *\n * @param lView An `LView` that represents a current component that is being rendered.\n */\nfunction getTemplateLocationDetails(lView) {\n    !ngDevMode && throwError('Must never be called in production mode');\n    const hostComponentDef = getDeclarationComponentDef(lView);\n    const componentClassName = hostComponentDef?.type?.name;\n    return componentClassName ? ` (used in the '${componentClassName}' component template)` : '';\n}\n/**\n * The set of known control flow directives and their corresponding imports.\n * We use this set to produce a more precises error message with a note\n * that the `CommonModule` should also be included.\n */\nconst KNOWN_CONTROL_FLOW_DIRECTIVES = new Map([\n    ['ngIf', 'NgIf'], ['ngFor', 'NgFor'], ['ngSwitchCase', 'NgSwitchCase'],\n    ['ngSwitchDefault', 'NgSwitchDefault']\n]);\n/**\n * Returns true if the tag name is allowed by specified schemas.\n * @param schemas Array of schemas\n * @param tagName Name of the tag\n */\nfunction matchingSchemas(schemas, tagName) {\n    if (schemas !== null) {\n        for (let i = 0; i < schemas.length; i++) {\n            const schema = schemas[i];\n            if (schema === NO_ERRORS_SCHEMA ||\n                schema === CUSTOM_ELEMENTS_SCHEMA && tagName && tagName.indexOf('-') > -1) {\n                return true;\n            }\n        }\n    }\n    return false;\n}\n\n/**\n * The name of an attribute that can be added to the hydration boundary node\n * (component host node) to disable hydration for the content within that boundary.\n */\nconst SKIP_HYDRATION_ATTR_NAME = 'ngSkipHydration';\n/**\n * Helper function to check if a given TNode has the 'ngSkipHydration' attribute.\n */\nfunction hasSkipHydrationAttrOnTNode(tNode) {\n    const SKIP_HYDRATION_ATTR_NAME_LOWER_CASE = SKIP_HYDRATION_ATTR_NAME.toLowerCase();\n    const attrs = tNode.mergedAttrs;\n    if (attrs === null)\n        return false;\n    // only ever look at the attribute name and skip the values\n    for (let i = 0; i < attrs.length; i += 2) {\n        const value = attrs[i];\n        // This is a marker, which means that the static attributes section is over,\n        // so we can exit early.\n        if (typeof value === 'number')\n            return false;\n        if (typeof value === 'string' && value.toLowerCase() === SKIP_HYDRATION_ATTR_NAME_LOWER_CASE) {\n            return true;\n        }\n    }\n    return false;\n}\n/**\n * Helper function to check if a given RElement has the 'ngSkipHydration' attribute.\n */\nfunction hasSkipHydrationAttrOnRElement(rNode) {\n    return rNode.hasAttribute(SKIP_HYDRATION_ATTR_NAME);\n}\n/**\n * Checks whether a TNode has a flag to indicate that it's a part of\n * a skip hydration block.\n */\nfunction hasInSkipHydrationBlockFlag(tNode) {\n    return (tNode.flags & 128 /* TNodeFlags.inSkipHydrationBlock */) === 128 /* TNodeFlags.inSkipHydrationBlock */;\n}\n/**\n * Helper function that determines if a given node is within a skip hydration block\n * by navigating up the TNode tree to see if any parent nodes have skip hydration\n * attribute.\n *\n * TODO(akushnir): this function should contain the logic of `hasInSkipHydrationBlockFlag`,\n * there is no need to traverse parent nodes when we have a TNode flag (which would also\n * make this lookup O(1)).\n */\nfunction isInSkipHydrationBlock(tNode) {\n    let currentTNode = tNode.parent;\n    while (currentTNode) {\n        if (hasSkipHydrationAttrOnTNode(currentTNode)) {\n            return true;\n        }\n        currentTNode = currentTNode.parent;\n    }\n    return false;\n}\n\n/**\n * Flags for renderer-specific style modifiers.\n * @publicApi\n */\nvar RendererStyleFlags2;\n(function (RendererStyleFlags2) {\n    // TODO(misko): This needs to be refactored into a separate file so that it can be imported from\n    // `node_manipulation.ts` Currently doing the import cause resolution order to change and fails\n    // the tests. The work around is to have hard coded value in `node_manipulation.ts` for now.\n    /**\n     * Marks a style as important.\n     */\n    RendererStyleFlags2[RendererStyleFlags2[\"Important\"] = 1] = \"Important\";\n    /**\n     * Marks a style as using dash case naming (this-is-dash-case).\n     */\n    RendererStyleFlags2[RendererStyleFlags2[\"DashCase\"] = 2] = \"DashCase\";\n})(RendererStyleFlags2 || (RendererStyleFlags2 = {}));\n\n/**\n * Disallowed strings in the comment.\n *\n * see: https://html.spec.whatwg.org/multipage/syntax.html#comments\n */\nconst COMMENT_DISALLOWED = /^>|^->|<!--|-->|--!>|<!-$/g;\n/**\n * Delimiter in the disallowed strings which needs to be wrapped with zero with character.\n */\nconst COMMENT_DELIMITER = /(<|>)/g;\nconst COMMENT_DELIMITER_ESCAPED = '\\u200B$1\\u200B';\n/**\n * Escape the content of comment strings so that it can be safely inserted into a comment node.\n *\n * The issue is that HTML does not specify any way to escape comment end text inside the comment.\n * Consider: `<!-- The way you close a comment is with \">\", and \"->\" at the beginning or by \"-->\" or\n * \"--!>\" at the end. -->`. Above the `\"-->\"` is meant to be text not an end to the comment. This\n * can be created programmatically through DOM APIs. (`<!--` are also disallowed.)\n *\n * see: https://html.spec.whatwg.org/multipage/syntax.html#comments\n *\n * ```\n * div.innerHTML = div.innerHTML\n * ```\n *\n * One would expect that the above code would be safe to do, but it turns out that because comment\n * text is not escaped, the comment may contain text which will prematurely close the comment\n * opening up the application for XSS attack. (In SSR we programmatically create comment nodes which\n * may contain such text and expect them to be safe.)\n *\n * This function escapes the comment text by looking for comment delimiters (`<` and `>`) and\n * surrounding them with `_>_` where the `_` is a zero width space `\\u200B`. The result is that if a\n * comment contains any of the comment start/end delimiters (such as `<!--`, `-->` or `--!>`) the\n * text it will render normally but it will not cause the HTML parser to close/open the comment.\n *\n * @param value text to make safe for comment node by escaping the comment open/close character\n *     sequence.\n */\nfunction escapeCommentText(value) {\n    return value.replace(COMMENT_DISALLOWED, (text) => text.replace(COMMENT_DELIMITER, COMMENT_DELIMITER_ESCAPED));\n}\n\n// Keeps track of the currently-active LViews.\nconst TRACKED_LVIEWS = new Map();\n// Used for generating unique IDs for LViews.\nlet uniqueIdCounter = 0;\n/** Gets a unique ID that can be assigned to an LView. */\nfunction getUniqueLViewId() {\n    return uniqueIdCounter++;\n}\n/** Starts tracking an LView. */\nfunction registerLView(lView) {\n    ngDevMode && assertNumber(lView[ID], 'LView must have an ID in order to be registered');\n    TRACKED_LVIEWS.set(lView[ID], lView);\n}\n/** Gets an LView by its unique ID. */\nfunction getLViewById(id) {\n    ngDevMode && assertNumber(id, 'ID used for LView lookup must be a number');\n    return TRACKED_LVIEWS.get(id) || null;\n}\n/** Stops tracking an LView. */\nfunction unregisterLView(lView) {\n    ngDevMode && assertNumber(lView[ID], 'Cannot stop tracking an LView that does not have an ID');\n    TRACKED_LVIEWS.delete(lView[ID]);\n}\n\n/**\n * The internal view context which is specific to a given DOM element, directive or\n * component instance. Each value in here (besides the LView and element node details)\n * can be present, null or undefined. If undefined then it implies the value has not been\n * looked up yet, otherwise, if null, then a lookup was executed and nothing was found.\n *\n * Each value will get filled when the respective value is examined within the getContext\n * function. The component, element and each directive instance will share the same instance\n * of the context.\n */\nclass LContext {\n    /** Component's parent view data. */\n    get lView() {\n        return getLViewById(this.lViewId);\n    }\n    constructor(\n    /**\n     * ID of the component's parent view data.\n     */\n    lViewId, \n    /**\n     * The index instance of the node.\n     */\n    nodeIndex, \n    /**\n     * The instance of the DOM node that is attached to the lNode.\n     */\n    native) {\n        this.lViewId = lViewId;\n        this.nodeIndex = nodeIndex;\n        this.native = native;\n    }\n}\n\n/**\n * Returns the matching `LContext` data for a given DOM node, directive or component instance.\n *\n * This function will examine the provided DOM element, component, or directive instance\\'s\n * monkey-patched property to derive the `LContext` data. Once called then the monkey-patched\n * value will be that of the newly created `LContext`.\n *\n * If the monkey-patched value is the `LView` instance then the context value for that\n * target will be created and the monkey-patch reference will be updated. Therefore when this\n * function is called it may mutate the provided element\\'s, component\\'s or any of the associated\n * directive\\'s monkey-patch values.\n *\n * If the monkey-patch value is not detected then the code will walk up the DOM until an element\n * is found which contains a monkey-patch reference. When that occurs then the provided element\n * will be updated with a new context (which is then returned). If the monkey-patch value is not\n * detected for a component/directive instance then it will throw an error (all components and\n * directives should be automatically monkey-patched by ivy).\n *\n * @param target Component, Directive or DOM Node.\n */\nfunction getLContext(target) {\n    let mpValue = readPatchedData(target);\n    if (mpValue) {\n        // only when it's an array is it considered an LView instance\n        // ... otherwise it's an already constructed LContext instance\n        if (isLView(mpValue)) {\n            const lView = mpValue;\n            let nodeIndex;\n            let component = undefined;\n            let directives = undefined;\n            if (isComponentInstance(target)) {\n                nodeIndex = findViaComponent(lView, target);\n                if (nodeIndex == -1) {\n                    throw new Error('The provided component was not found in the application');\n                }\n                component = target;\n            }\n            else if (isDirectiveInstance(target)) {\n                nodeIndex = findViaDirective(lView, target);\n                if (nodeIndex == -1) {\n                    throw new Error('The provided directive was not found in the application');\n                }\n                directives = getDirectivesAtNodeIndex(nodeIndex, lView);\n            }\n            else {\n                nodeIndex = findViaNativeElement(lView, target);\n                if (nodeIndex == -1) {\n                    return null;\n                }\n            }\n            // the goal is not to fill the entire context full of data because the lookups\n            // are expensive. Instead, only the target data (the element, component, container, ICU\n            // expression or directive details) are filled into the context. If called multiple times\n            // with different target values then the missing target data will be filled in.\n            const native = unwrapRNode(lView[nodeIndex]);\n            const existingCtx = readPatchedData(native);\n            const context = (existingCtx && !Array.isArray(existingCtx)) ?\n                existingCtx :\n                createLContext(lView, nodeIndex, native);\n            // only when the component has been discovered then update the monkey-patch\n            if (component && context.component === undefined) {\n                context.component = component;\n                attachPatchData(context.component, context);\n            }\n            // only when the directives have been discovered then update the monkey-patch\n            if (directives && context.directives === undefined) {\n                context.directives = directives;\n                for (let i = 0; i < directives.length; i++) {\n                    attachPatchData(directives[i], context);\n                }\n            }\n            attachPatchData(context.native, context);\n            mpValue = context;\n        }\n    }\n    else {\n        const rElement = target;\n        ngDevMode && assertDomNode(rElement);\n        // if the context is not found then we need to traverse upwards up the DOM\n        // to find the nearest element that has already been monkey patched with data\n        let parent = rElement;\n        while (parent = parent.parentNode) {\n            const parentContext = readPatchedData(parent);\n            if (parentContext) {\n                const lView = Array.isArray(parentContext) ? parentContext : parentContext.lView;\n                // the edge of the app was also reached here through another means\n                // (maybe because the DOM was changed manually).\n                if (!lView) {\n                    return null;\n                }\n                const index = findViaNativeElement(lView, rElement);\n                if (index >= 0) {\n                    const native = unwrapRNode(lView[index]);\n                    const context = createLContext(lView, index, native);\n                    attachPatchData(native, context);\n                    mpValue = context;\n                    break;\n                }\n            }\n        }\n    }\n    return mpValue || null;\n}\n/**\n * Creates an empty instance of a `LContext` context\n */\nfunction createLContext(lView, nodeIndex, native) {\n    return new LContext(lView[ID], nodeIndex, native);\n}\n/**\n * Takes a component instance and returns the view for that component.\n *\n * @param componentInstance\n * @returns The component's view\n */\nfunction getComponentViewByInstance(componentInstance) {\n    let patchedData = readPatchedData(componentInstance);\n    let lView;\n    if (isLView(patchedData)) {\n        const contextLView = patchedData;\n        const nodeIndex = findViaComponent(contextLView, componentInstance);\n        lView = getComponentLViewByIndex(nodeIndex, contextLView);\n        const context = createLContext(contextLView, nodeIndex, lView[HOST]);\n        context.component = componentInstance;\n        attachPatchData(componentInstance, context);\n        attachPatchData(context.native, context);\n    }\n    else {\n        const context = patchedData;\n        const contextLView = context.lView;\n        ngDevMode && assertLView(contextLView);\n        lView = getComponentLViewByIndex(context.nodeIndex, contextLView);\n    }\n    return lView;\n}\n/**\n * This property will be monkey-patched on elements, components and directives.\n */\nconst MONKEY_PATCH_KEY_NAME = '__ngContext__';\n/**\n * Assigns the given data to the given target (which could be a component,\n * directive or DOM node instance) using monkey-patching.\n */\nfunction attachPatchData(target, data) {\n    ngDevMode && assertDefined(target, 'Target expected');\n    // Only attach the ID of the view in order to avoid memory leaks (see #41047). We only do this\n    // for `LView`, because we have control over when an `LView` is created and destroyed, whereas\n    // we can't know when to remove an `LContext`.\n    if (isLView(data)) {\n        target[MONKEY_PATCH_KEY_NAME] = data[ID];\n        registerLView(data);\n    }\n    else {\n        target[MONKEY_PATCH_KEY_NAME] = data;\n    }\n}\n/**\n * Returns the monkey-patch value data present on the target (which could be\n * a component, directive or a DOM node).\n */\nfunction readPatchedData(target) {\n    ngDevMode && assertDefined(target, 'Target expected');\n    const data = target[MONKEY_PATCH_KEY_NAME];\n    return (typeof data === 'number') ? getLViewById(data) : data || null;\n}\nfunction readPatchedLView(target) {\n    const value = readPatchedData(target);\n    if (value) {\n        return (isLView(value) ? value : value.lView);\n    }\n    return null;\n}\nfunction isComponentInstance(instance) {\n    return instance && instance.constructor && instance.constructor.ɵcmp;\n}\nfunction isDirectiveInstance(instance) {\n    return instance && instance.constructor && instance.constructor.ɵdir;\n}\n/**\n * Locates the element within the given LView and returns the matching index\n */\nfunction findViaNativeElement(lView, target) {\n    const tView = lView[TVIEW];\n    for (let i = HEADER_OFFSET; i < tView.bindingStartIndex; i++) {\n        if (unwrapRNode(lView[i]) === target) {\n            return i;\n        }\n    }\n    return -1;\n}\n/**\n * Locates the next tNode (child, sibling or parent).\n */\nfunction traverseNextElement(tNode) {\n    if (tNode.child) {\n        return tNode.child;\n    }\n    else if (tNode.next) {\n        return tNode.next;\n    }\n    else {\n        // Let's take the following template: <div><span>text</span></div><component/>\n        // After checking the text node, we need to find the next parent that has a \"next\" TNode,\n        // in this case the parent `div`, so that we can find the component.\n        while (tNode.parent && !tNode.parent.next) {\n            tNode = tNode.parent;\n        }\n        return tNode.parent && tNode.parent.next;\n    }\n}\n/**\n * Locates the component within the given LView and returns the matching index\n */\nfunction findViaComponent(lView, componentInstance) {\n    const componentIndices = lView[TVIEW].components;\n    if (componentIndices) {\n        for (let i = 0; i < componentIndices.length; i++) {\n            const elementComponentIndex = componentIndices[i];\n            const componentView = getComponentLViewByIndex(elementComponentIndex, lView);\n            if (componentView[CONTEXT] === componentInstance) {\n                return elementComponentIndex;\n            }\n        }\n    }\n    else {\n        const rootComponentView = getComponentLViewByIndex(HEADER_OFFSET, lView);\n        const rootComponent = rootComponentView[CONTEXT];\n        if (rootComponent === componentInstance) {\n            // we are dealing with the root element here therefore we know that the\n            // element is the very first element after the HEADER data in the lView\n            return HEADER_OFFSET;\n        }\n    }\n    return -1;\n}\n/**\n * Locates the directive within the given LView and returns the matching index\n */\nfunction findViaDirective(lView, directiveInstance) {\n    // if a directive is monkey patched then it will (by default)\n    // have a reference to the LView of the current view. The\n    // element bound to the directive being search lives somewhere\n    // in the view data. We loop through the nodes and check their\n    // list of directives for the instance.\n    let tNode = lView[TVIEW].firstChild;\n    while (tNode) {\n        const directiveIndexStart = tNode.directiveStart;\n        const directiveIndexEnd = tNode.directiveEnd;\n        for (let i = directiveIndexStart; i < directiveIndexEnd; i++) {\n            if (lView[i] === directiveInstance) {\n                return tNode.index;\n            }\n        }\n        tNode = traverseNextElement(tNode);\n    }\n    return -1;\n}\n/**\n * Returns a list of directives applied to a node at a specific index. The list includes\n * directives matched by selector and any host directives, but it excludes components.\n * Use `getComponentAtNodeIndex` to find the component applied to a node.\n *\n * @param nodeIndex The node index\n * @param lView The target view data\n */\nfunction getDirectivesAtNodeIndex(nodeIndex, lView) {\n    const tNode = lView[TVIEW].data[nodeIndex];\n    if (tNode.directiveStart === 0)\n        return EMPTY_ARRAY;\n    const results = [];\n    for (let i = tNode.directiveStart; i < tNode.directiveEnd; i++) {\n        const directiveInstance = lView[i];\n        if (!isComponentInstance(directiveInstance)) {\n            results.push(directiveInstance);\n        }\n    }\n    return results;\n}\nfunction getComponentAtNodeIndex(nodeIndex, lView) {\n    const tNode = lView[TVIEW].data[nodeIndex];\n    const { directiveStart, componentOffset } = tNode;\n    return componentOffset > -1 ? lView[directiveStart + componentOffset] : null;\n}\n/**\n * Returns a map of local references (local reference name => element or directive instance) that\n * exist on a given element.\n */\nfunction discoverLocalRefs(lView, nodeIndex) {\n    const tNode = lView[TVIEW].data[nodeIndex];\n    if (tNode && tNode.localNames) {\n        const result = {};\n        let localIndex = tNode.index + 1;\n        for (let i = 0; i < tNode.localNames.length; i += 2) {\n            result[tNode.localNames[i]] = lView[localIndex];\n            localIndex++;\n        }\n        return result;\n    }\n    return null;\n}\n\nlet _icuContainerIterate;\n/**\n * Iterator which provides ability to visit all of the `TIcuContainerNode` root `RNode`s.\n */\nfunction icuContainerIterate(tIcuContainerNode, lView) {\n    return _icuContainerIterate(tIcuContainerNode, lView);\n}\n/**\n * Ensures that `IcuContainerVisitor`'s implementation is present.\n *\n * This function is invoked when i18n instruction comes across an ICU. The purpose is to allow the\n * bundler to tree shake ICU logic and only load it if ICU instruction is executed.\n */\nfunction ensureIcuContainerVisitorLoaded(loader) {\n    if (_icuContainerIterate === undefined) {\n        // Do not inline this function. We want to keep `ensureIcuContainerVisitorLoaded` light, so it\n        // can be inlined into call-site.\n        _icuContainerIterate = loader();\n    }\n}\n\n/**\n * Gets the parent LView of the passed LView, if the PARENT is an LContainer, will get the parent of\n * that LContainer, which is an LView\n * @param lView the lView whose parent to get\n */\nfunction getLViewParent(lView) {\n    ngDevMode && assertLView(lView);\n    const parent = lView[PARENT];\n    return isLContainer(parent) ? parent[PARENT] : parent;\n}\n/**\n * Retrieve the root view from any component or `LView` by walking the parent `LView` until\n * reaching the root `LView`.\n *\n * @param componentOrLView any component or `LView`\n */\nfunction getRootView(componentOrLView) {\n    ngDevMode && assertDefined(componentOrLView, 'component');\n    let lView = isLView(componentOrLView) ? componentOrLView : readPatchedLView(componentOrLView);\n    while (lView && !(lView[FLAGS] & 512 /* LViewFlags.IsRoot */)) {\n        lView = getLViewParent(lView);\n    }\n    ngDevMode && assertLView(lView);\n    return lView;\n}\n/**\n * Returns the context information associated with the application where the target is situated. It\n * does this by walking the parent views until it gets to the root view, then getting the context\n * off of that.\n *\n * @param viewOrComponent the `LView` or component to get the root context for.\n */\nfunction getRootContext(viewOrComponent) {\n    const rootView = getRootView(viewOrComponent);\n    ngDevMode &&\n        assertDefined(rootView[CONTEXT], 'Root view has no context. Perhaps it is disconnected?');\n    return rootView[CONTEXT];\n}\n/**\n * Gets the first `LContainer` in the LView or `null` if none exists.\n */\nfunction getFirstLContainer(lView) {\n    return getNearestLContainer(lView[CHILD_HEAD]);\n}\n/**\n * Gets the next `LContainer` that is a sibling of the given container.\n */\nfunction getNextLContainer(container) {\n    return getNearestLContainer(container[NEXT]);\n}\nfunction getNearestLContainer(viewOrContainer) {\n    while (viewOrContainer !== null && !isLContainer(viewOrContainer)) {\n        viewOrContainer = viewOrContainer[NEXT];\n    }\n    return viewOrContainer;\n}\n\n/**\n * NOTE: for performance reasons, the possible actions are inlined within the function instead of\n * being passed as an argument.\n */\nfunction applyToElementOrContainer(action, renderer, parent, lNodeToHandle, beforeNode) {\n    // If this slot was allocated for a text node dynamically created by i18n, the text node itself\n    // won't be created until i18nApply() in the update block, so this node should be skipped.\n    // For more info, see \"ICU expressions should work inside an ngTemplateOutlet inside an ngFor\"\n    // in `i18n_spec.ts`.\n    if (lNodeToHandle != null) {\n        let lContainer;\n        let isComponent = false;\n        // We are expecting an RNode, but in the case of a component or LContainer the `RNode` is\n        // wrapped in an array which needs to be unwrapped. We need to know if it is a component and if\n        // it has LContainer so that we can process all of those cases appropriately.\n        if (isLContainer(lNodeToHandle)) {\n            lContainer = lNodeToHandle;\n        }\n        else if (isLView(lNodeToHandle)) {\n            isComponent = true;\n            ngDevMode && assertDefined(lNodeToHandle[HOST], 'HOST must be defined for a component LView');\n            lNodeToHandle = lNodeToHandle[HOST];\n        }\n        const rNode = unwrapRNode(lNodeToHandle);\n        if (action === 0 /* WalkTNodeTreeAction.Create */ && parent !== null) {\n            if (beforeNode == null) {\n                nativeAppendChild(renderer, parent, rNode);\n            }\n            else {\n                nativeInsertBefore(renderer, parent, rNode, beforeNode || null, true);\n            }\n        }\n        else if (action === 1 /* WalkTNodeTreeAction.Insert */ && parent !== null) {\n            nativeInsertBefore(renderer, parent, rNode, beforeNode || null, true);\n        }\n        else if (action === 2 /* WalkTNodeTreeAction.Detach */) {\n            nativeRemoveNode(renderer, rNode, isComponent);\n        }\n        else if (action === 3 /* WalkTNodeTreeAction.Destroy */) {\n            ngDevMode && ngDevMode.rendererDestroyNode++;\n            renderer.destroyNode(rNode);\n        }\n        if (lContainer != null) {\n            applyContainer(renderer, action, lContainer, parent, beforeNode);\n        }\n    }\n}\nfunction createTextNode(renderer, value) {\n    ngDevMode && ngDevMode.rendererCreateTextNode++;\n    ngDevMode && ngDevMode.rendererSetText++;\n    return renderer.createText(value);\n}\nfunction updateTextNode(renderer, rNode, value) {\n    ngDevMode && ngDevMode.rendererSetText++;\n    renderer.setValue(rNode, value);\n}\nfunction createCommentNode(renderer, value) {\n    ngDevMode && ngDevMode.rendererCreateComment++;\n    return renderer.createComment(escapeCommentText(value));\n}\n/**\n * Creates a native element from a tag name, using a renderer.\n * @param renderer A renderer to use\n * @param name the tag name\n * @param namespace Optional namespace for element.\n * @returns the element created\n */\nfunction createElementNode(renderer, name, namespace) {\n    ngDevMode && ngDevMode.rendererCreateElement++;\n    return renderer.createElement(name, namespace);\n}\n/**\n * Removes all DOM elements associated with a view.\n *\n * Because some root nodes of the view may be containers, we sometimes need\n * to propagate deeply into the nested containers to remove all elements in the\n * views beneath it.\n *\n * @param tView The `TView' of the `LView` from which elements should be added or removed\n * @param lView The view from which elements should be added or removed\n */\nfunction removeViewFromDOM(tView, lView) {\n    const renderer = lView[RENDERER];\n    applyView(tView, lView, renderer, 2 /* WalkTNodeTreeAction.Detach */, null, null);\n    lView[HOST] = null;\n    lView[T_HOST] = null;\n}\n/**\n * Adds all DOM elements associated with a view.\n *\n * Because some root nodes of the view may be containers, we sometimes need\n * to propagate deeply into the nested containers to add all elements in the\n * views beneath it.\n *\n * @param tView The `TView' of the `LView` from which elements should be added or removed\n * @param parentTNode The `TNode` where the `LView` should be attached to.\n * @param renderer Current renderer to use for DOM manipulations.\n * @param lView The view from which elements should be added or removed\n * @param parentNativeNode The parent `RElement` where it should be inserted into.\n * @param beforeNode The node before which elements should be added, if insert mode\n */\nfunction addViewToDOM(tView, parentTNode, renderer, lView, parentNativeNode, beforeNode) {\n    lView[HOST] = parentNativeNode;\n    lView[T_HOST] = parentTNode;\n    applyView(tView, lView, renderer, 1 /* WalkTNodeTreeAction.Insert */, parentNativeNode, beforeNode);\n}\n/**\n * Detach a `LView` from the DOM by detaching its nodes.\n *\n * @param tView The `TView' of the `LView` to be detached\n * @param lView the `LView` to be detached.\n */\nfunction detachViewFromDOM(tView, lView) {\n    applyView(tView, lView, lView[RENDERER], 2 /* WalkTNodeTreeAction.Detach */, null, null);\n}\n/**\n * Traverses down and up the tree of views and containers to remove listeners and\n * call onDestroy callbacks.\n *\n * Notes:\n *  - Because it's used for onDestroy calls, it needs to be bottom-up.\n *  - Must process containers instead of their views to avoid splicing\n *  when views are destroyed and re-added.\n *  - Using a while loop because it's faster than recursion\n *  - Destroy only called on movement to sibling or movement to parent (laterally or up)\n *\n *  @param rootView The view to destroy\n */\nfunction destroyViewTree(rootView) {\n    // If the view has no children, we can clean it up and return early.\n    let lViewOrLContainer = rootView[CHILD_HEAD];\n    if (!lViewOrLContainer) {\n        return cleanUpView(rootView[TVIEW], rootView);\n    }\n    while (lViewOrLContainer) {\n        let next = null;\n        if (isLView(lViewOrLContainer)) {\n            // If LView, traverse down to child.\n            next = lViewOrLContainer[CHILD_HEAD];\n        }\n        else {\n            ngDevMode && assertLContainer(lViewOrLContainer);\n            // If container, traverse down to its first LView.\n            const firstView = lViewOrLContainer[CONTAINER_HEADER_OFFSET];\n            if (firstView)\n                next = firstView;\n        }\n        if (!next) {\n            // Only clean up view when moving to the side or up, as destroy hooks\n            // should be called in order from the bottom up.\n            while (lViewOrLContainer && !lViewOrLContainer[NEXT] && lViewOrLContainer !== rootView) {\n                if (isLView(lViewOrLContainer)) {\n                    cleanUpView(lViewOrLContainer[TVIEW], lViewOrLContainer);\n                }\n                lViewOrLContainer = lViewOrLContainer[PARENT];\n            }\n            if (lViewOrLContainer === null)\n                lViewOrLContainer = rootView;\n            if (isLView(lViewOrLContainer)) {\n                cleanUpView(lViewOrLContainer[TVIEW], lViewOrLContainer);\n            }\n            next = lViewOrLContainer && lViewOrLContainer[NEXT];\n        }\n        lViewOrLContainer = next;\n    }\n}\n/**\n * Inserts a view into a container.\n *\n * This adds the view to the container's array of active views in the correct\n * position. It also adds the view's elements to the DOM if the container isn't a\n * root node of another view (in that case, the view's elements will be added when\n * the container's parent view is added later).\n *\n * @param tView The `TView' of the `LView` to insert\n * @param lView The view to insert\n * @param lContainer The container into which the view should be inserted\n * @param index Which index in the container to insert the child view into\n */\nfunction insertView(tView, lView, lContainer, index) {\n    ngDevMode && assertLView(lView);\n    ngDevMode && assertLContainer(lContainer);\n    const indexInContainer = CONTAINER_HEADER_OFFSET + index;\n    const containerLength = lContainer.length;\n    if (index > 0) {\n        // This is a new view, we need to add it to the children.\n        lContainer[indexInContainer - 1][NEXT] = lView;\n    }\n    if (index < containerLength - CONTAINER_HEADER_OFFSET) {\n        lView[NEXT] = lContainer[indexInContainer];\n        addToArray(lContainer, CONTAINER_HEADER_OFFSET + index, lView);\n    }\n    else {\n        lContainer.push(lView);\n        lView[NEXT] = null;\n    }\n    lView[PARENT] = lContainer;\n    // track views where declaration and insertion points are different\n    const declarationLContainer = lView[DECLARATION_LCONTAINER];\n    if (declarationLContainer !== null && lContainer !== declarationLContainer) {\n        trackMovedView(declarationLContainer, lView);\n    }\n    // notify query that a new view has been added\n    const lQueries = lView[QUERIES];\n    if (lQueries !== null) {\n        lQueries.insertView(tView);\n    }\n    // Sets the attached flag\n    lView[FLAGS] |= 128 /* LViewFlags.Attached */;\n}\n/**\n * Track views created from the declaration container (TemplateRef) and inserted into a\n * different LContainer.\n */\nfunction trackMovedView(declarationContainer, lView) {\n    ngDevMode && assertDefined(lView, 'LView required');\n    ngDevMode && assertLContainer(declarationContainer);\n    const movedViews = declarationContainer[MOVED_VIEWS];\n    const insertedLContainer = lView[PARENT];\n    ngDevMode && assertLContainer(insertedLContainer);\n    const insertedComponentLView = insertedLContainer[PARENT][DECLARATION_COMPONENT_VIEW];\n    ngDevMode && assertDefined(insertedComponentLView, 'Missing insertedComponentLView');\n    const declaredComponentLView = lView[DECLARATION_COMPONENT_VIEW];\n    ngDevMode && assertDefined(declaredComponentLView, 'Missing declaredComponentLView');\n    if (declaredComponentLView !== insertedComponentLView) {\n        // At this point the declaration-component is not same as insertion-component; this means that\n        // this is a transplanted view. Mark the declared lView as having transplanted views so that\n        // those views can participate in CD.\n        declarationContainer[HAS_TRANSPLANTED_VIEWS] = true;\n    }\n    if (movedViews === null) {\n        declarationContainer[MOVED_VIEWS] = [lView];\n    }\n    else {\n        movedViews.push(lView);\n    }\n}\nfunction detachMovedView(declarationContainer, lView) {\n    ngDevMode && assertLContainer(declarationContainer);\n    ngDevMode &&\n        assertDefined(declarationContainer[MOVED_VIEWS], 'A projected view should belong to a non-empty projected views collection');\n    const movedViews = declarationContainer[MOVED_VIEWS];\n    const declarationViewIndex = movedViews.indexOf(lView);\n    const insertionLContainer = lView[PARENT];\n    ngDevMode && assertLContainer(insertionLContainer);\n    // If the view was marked for refresh but then detached before it was checked (where the flag\n    // would be cleared and the counter decremented), we need to update the status here.\n    clearViewRefreshFlag(lView);\n    movedViews.splice(declarationViewIndex, 1);\n}\n/**\n * Detaches a view from a container.\n *\n * This method removes the view from the container's array of active views. It also\n * removes the view's elements from the DOM.\n *\n * @param lContainer The container from which to detach a view\n * @param removeIndex The index of the view to detach\n * @returns Detached LView instance.\n */\nfunction detachView(lContainer, removeIndex) {\n    if (lContainer.length <= CONTAINER_HEADER_OFFSET)\n        return;\n    const indexInContainer = CONTAINER_HEADER_OFFSET + removeIndex;\n    const viewToDetach = lContainer[indexInContainer];\n    if (viewToDetach) {\n        const declarationLContainer = viewToDetach[DECLARATION_LCONTAINER];\n        if (declarationLContainer !== null && declarationLContainer !== lContainer) {\n            detachMovedView(declarationLContainer, viewToDetach);\n        }\n        if (removeIndex > 0) {\n            lContainer[indexInContainer - 1][NEXT] = viewToDetach[NEXT];\n        }\n        const removedLView = removeFromArray(lContainer, CONTAINER_HEADER_OFFSET + removeIndex);\n        removeViewFromDOM(viewToDetach[TVIEW], viewToDetach);\n        // notify query that a view has been removed\n        const lQueries = removedLView[QUERIES];\n        if (lQueries !== null) {\n            lQueries.detachView(removedLView[TVIEW]);\n        }\n        viewToDetach[PARENT] = null;\n        viewToDetach[NEXT] = null;\n        // Unsets the attached flag\n        viewToDetach[FLAGS] &= ~128 /* LViewFlags.Attached */;\n    }\n    return viewToDetach;\n}\n/**\n * A standalone function which destroys an LView,\n * conducting clean up (e.g. removing listeners, calling onDestroys).\n *\n * @param tView The `TView' of the `LView` to be destroyed\n * @param lView The view to be destroyed.\n */\nfunction destroyLView(tView, lView) {\n    if (!(lView[FLAGS] & 256 /* LViewFlags.Destroyed */)) {\n        const renderer = lView[RENDERER];\n        lView[REACTIVE_TEMPLATE_CONSUMER] && consumerDestroy(lView[REACTIVE_TEMPLATE_CONSUMER]);\n        lView[REACTIVE_HOST_BINDING_CONSUMER] && consumerDestroy(lView[REACTIVE_HOST_BINDING_CONSUMER]);\n        if (renderer.destroyNode) {\n            applyView(tView, lView, renderer, 3 /* WalkTNodeTreeAction.Destroy */, null, null);\n        }\n        destroyViewTree(lView);\n    }\n}\n/**\n * Calls onDestroys hooks for all directives and pipes in a given view and then removes all\n * listeners. Listeners are removed as the last step so events delivered in the onDestroys hooks\n * can be propagated to @Output listeners.\n *\n * @param tView `TView` for the `LView` to clean up.\n * @param lView The LView to clean up\n */\nfunction cleanUpView(tView, lView) {\n    if (!(lView[FLAGS] & 256 /* LViewFlags.Destroyed */)) {\n        // Usually the Attached flag is removed when the view is detached from its parent, however\n        // if it's a root view, the flag won't be unset hence why we're also removing on destroy.\n        lView[FLAGS] &= ~128 /* LViewFlags.Attached */;\n        // Mark the LView as destroyed *before* executing the onDestroy hooks. An onDestroy hook\n        // runs arbitrary user code, which could include its own `viewRef.destroy()` (or similar). If\n        // We don't flag the view as destroyed before the hooks, this could lead to an infinite loop.\n        // This also aligns with the ViewEngine behavior. It also means that the onDestroy hook is\n        // really more of an \"afterDestroy\" hook if you think about it.\n        lView[FLAGS] |= 256 /* LViewFlags.Destroyed */;\n        executeOnDestroys(tView, lView);\n        processCleanups(tView, lView);\n        // For component views only, the local renderer is destroyed at clean up time.\n        if (lView[TVIEW].type === 1 /* TViewType.Component */) {\n            ngDevMode && ngDevMode.rendererDestroy++;\n            lView[RENDERER].destroy();\n        }\n        const declarationContainer = lView[DECLARATION_LCONTAINER];\n        // we are dealing with an embedded view that is still inserted into a container\n        if (declarationContainer !== null && isLContainer(lView[PARENT])) {\n            // and this is a projected view\n            if (declarationContainer !== lView[PARENT]) {\n                detachMovedView(declarationContainer, lView);\n            }\n            // For embedded views still attached to a container: remove query result from this view.\n            const lQueries = lView[QUERIES];\n            if (lQueries !== null) {\n                lQueries.detachView(tView);\n            }\n        }\n        // Unregister the view once everything else has been cleaned up.\n        unregisterLView(lView);\n    }\n}\n/** Removes listeners and unsubscribes from output subscriptions */\nfunction processCleanups(tView, lView) {\n    const tCleanup = tView.cleanup;\n    const lCleanup = lView[CLEANUP];\n    if (tCleanup !== null) {\n        for (let i = 0; i < tCleanup.length - 1; i += 2) {\n            if (typeof tCleanup[i] === 'string') {\n                // This is a native DOM listener. It will occupy 4 entries in the TCleanup array (hence i +=\n                // 2 at the end of this block).\n                const targetIdx = tCleanup[i + 3];\n                ngDevMode && assertNumber(targetIdx, 'cleanup target must be a number');\n                if (targetIdx >= 0) {\n                    // unregister\n                    lCleanup[targetIdx]();\n                }\n                else {\n                    // Subscription\n                    lCleanup[-targetIdx].unsubscribe();\n                }\n                i += 2;\n            }\n            else {\n                // This is a cleanup function that is grouped with the index of its context\n                const context = lCleanup[tCleanup[i + 1]];\n                tCleanup[i].call(context);\n            }\n        }\n    }\n    if (lCleanup !== null) {\n        lView[CLEANUP] = null;\n    }\n    const destroyHooks = lView[ON_DESTROY_HOOKS];\n    if (destroyHooks !== null) {\n        // Reset the ON_DESTROY_HOOKS array before iterating over it to prevent hooks that unregister\n        // themselves from mutating the array during iteration.\n        lView[ON_DESTROY_HOOKS] = null;\n        for (let i = 0; i < destroyHooks.length; i++) {\n            const destroyHooksFn = destroyHooks[i];\n            ngDevMode && assertFunction(destroyHooksFn, 'Expecting destroy hook to be a function.');\n            destroyHooksFn();\n        }\n    }\n}\n/** Calls onDestroy hooks for this view */\nfunction executeOnDestroys(tView, lView) {\n    let destroyHooks;\n    if (tView != null && (destroyHooks = tView.destroyHooks) != null) {\n        for (let i = 0; i < destroyHooks.length; i += 2) {\n            const context = lView[destroyHooks[i]];\n            // Only call the destroy hook if the context has been requested.\n            if (!(context instanceof NodeInjectorFactory)) {\n                const toCall = destroyHooks[i + 1];\n                if (Array.isArray(toCall)) {\n                    for (let j = 0; j < toCall.length; j += 2) {\n                        const callContext = context[toCall[j]];\n                        const hook = toCall[j + 1];\n                        profiler(4 /* ProfilerEvent.LifecycleHookStart */, callContext, hook);\n                        try {\n                            hook.call(callContext);\n                        }\n                        finally {\n                            profiler(5 /* ProfilerEvent.LifecycleHookEnd */, callContext, hook);\n                        }\n                    }\n                }\n                else {\n                    profiler(4 /* ProfilerEvent.LifecycleHookStart */, context, toCall);\n                    try {\n                        toCall.call(context);\n                    }\n                    finally {\n                        profiler(5 /* ProfilerEvent.LifecycleHookEnd */, context, toCall);\n                    }\n                }\n            }\n        }\n    }\n}\n/**\n * Returns a native element if a node can be inserted into the given parent.\n *\n * There are two reasons why we may not be able to insert a element immediately.\n * - Projection: When creating a child content element of a component, we have to skip the\n *   insertion because the content of a component will be projected.\n *   `<component><content>delayed due to projection</content></component>`\n * - Parent container is disconnected: This can happen when we are inserting a view into\n *   parent container, which itself is disconnected. For example the parent container is part\n *   of a View which has not be inserted or is made for projection but has not been inserted\n *   into destination.\n *\n * @param tView: Current `TView`.\n * @param tNode: `TNode` for which we wish to retrieve render parent.\n * @param lView: Current `LView`.\n */\nfunction getParentRElement(tView, tNode, lView) {\n    return getClosestRElement(tView, tNode.parent, lView);\n}\n/**\n * Get closest `RElement` or `null` if it can't be found.\n *\n * If `TNode` is `TNodeType.Element` => return `RElement` at `LView[tNode.index]` location.\n * If `TNode` is `TNodeType.ElementContainer|IcuContain` => return the parent (recursively).\n * If `TNode` is `null` then return host `RElement`:\n *   - return `null` if projection\n *   - return `null` if parent container is disconnected (we have no parent.)\n *\n * @param tView: Current `TView`.\n * @param tNode: `TNode` for which we wish to retrieve `RElement` (or `null` if host element is\n *     needed).\n * @param lView: Current `LView`.\n * @returns `null` if the `RElement` can't be determined at this time (no parent / projection)\n */\nfunction getClosestRElement(tView, tNode, lView) {\n    let parentTNode = tNode;\n    // Skip over element and ICU containers as those are represented by a comment node and\n    // can't be used as a render parent.\n    while (parentTNode !== null &&\n        (parentTNode.type & (8 /* TNodeType.ElementContainer */ | 32 /* TNodeType.Icu */))) {\n        tNode = parentTNode;\n        parentTNode = tNode.parent;\n    }\n    // If the parent tNode is null, then we are inserting across views: either into an embedded view\n    // or a component view.\n    if (parentTNode === null) {\n        // We are inserting a root element of the component view into the component host element and\n        // it should always be eager.\n        return lView[HOST];\n    }\n    else {\n        ngDevMode && assertTNodeType(parentTNode, 3 /* TNodeType.AnyRNode */ | 4 /* TNodeType.Container */);\n        const { componentOffset } = parentTNode;\n        if (componentOffset > -1) {\n            ngDevMode && assertTNodeForLView(parentTNode, lView);\n            const { encapsulation } = tView.data[parentTNode.directiveStart + componentOffset];\n            // We've got a parent which is an element in the current view. We just need to verify if the\n            // parent element is not a component. Component's content nodes are not inserted immediately\n            // because they will be projected, and so doing insert at this point would be wasteful.\n            // Since the projection would then move it to its final destination. Note that we can't\n            // make this assumption when using the Shadow DOM, because the native projection placeholders\n            // (<content> or <slot>) have to be in place as elements are being inserted.\n            if (encapsulation === ViewEncapsulation$1.None ||\n                encapsulation === ViewEncapsulation$1.Emulated) {\n                return null;\n            }\n        }\n        return getNativeByTNode(parentTNode, lView);\n    }\n}\n/**\n * Inserts a native node before another native node for a given parent.\n * This is a utility function that can be used when native nodes were determined.\n */\nfunction nativeInsertBefore(renderer, parent, child, beforeNode, isMove) {\n    ngDevMode && ngDevMode.rendererInsertBefore++;\n    renderer.insertBefore(parent, child, beforeNode, isMove);\n}\nfunction nativeAppendChild(renderer, parent, child) {\n    ngDevMode && ngDevMode.rendererAppendChild++;\n    ngDevMode && assertDefined(parent, 'parent node must be defined');\n    renderer.appendChild(parent, child);\n}\nfunction nativeAppendOrInsertBefore(renderer, parent, child, beforeNode, isMove) {\n    if (beforeNode !== null) {\n        nativeInsertBefore(renderer, parent, child, beforeNode, isMove);\n    }\n    else {\n        nativeAppendChild(renderer, parent, child);\n    }\n}\n/** Removes a node from the DOM given its native parent. */\nfunction nativeRemoveChild(renderer, parent, child, isHostElement) {\n    renderer.removeChild(parent, child, isHostElement);\n}\n/** Checks if an element is a `<template>` node. */\nfunction isTemplateNode(node) {\n    return node.tagName === 'TEMPLATE' && node.content !== undefined;\n}\n/**\n * Returns a native parent of a given native node.\n */\nfunction nativeParentNode(renderer, node) {\n    return renderer.parentNode(node);\n}\n/**\n * Returns a native sibling of a given native node.\n */\nfunction nativeNextSibling(renderer, node) {\n    return renderer.nextSibling(node);\n}\n/**\n * Find a node in front of which `currentTNode` should be inserted.\n *\n * This method determines the `RNode` in front of which we should insert the `currentRNode`. This\n * takes `TNode.insertBeforeIndex` into account if i18n code has been invoked.\n *\n * @param parentTNode parent `TNode`\n * @param currentTNode current `TNode` (The node which we would like to insert into the DOM)\n * @param lView current `LView`\n */\nfunction getInsertInFrontOfRNode(parentTNode, currentTNode, lView) {\n    return _getInsertInFrontOfRNodeWithI18n(parentTNode, currentTNode, lView);\n}\n/**\n * Find a node in front of which `currentTNode` should be inserted. (Does not take i18n into\n * account)\n *\n * This method determines the `RNode` in front of which we should insert the `currentRNode`. This\n * does not take `TNode.insertBeforeIndex` into account.\n *\n * @param parentTNode parent `TNode`\n * @param currentTNode current `TNode` (The node which we would like to insert into the DOM)\n * @param lView current `LView`\n */\nfunction getInsertInFrontOfRNodeWithNoI18n(parentTNode, currentTNode, lView) {\n    if (parentTNode.type & (8 /* TNodeType.ElementContainer */ | 32 /* TNodeType.Icu */)) {\n        return getNativeByTNode(parentTNode, lView);\n    }\n    return null;\n}\n/**\n * Tree shakable boundary for `getInsertInFrontOfRNodeWithI18n` function.\n *\n * This function will only be set if i18n code runs.\n */\nlet _getInsertInFrontOfRNodeWithI18n = getInsertInFrontOfRNodeWithNoI18n;\n/**\n * Tree shakable boundary for `processI18nInsertBefore` function.\n *\n * This function will only be set if i18n code runs.\n */\nlet _processI18nInsertBefore;\nfunction setI18nHandling(getInsertInFrontOfRNodeWithI18n, processI18nInsertBefore) {\n    _getInsertInFrontOfRNodeWithI18n = getInsertInFrontOfRNodeWithI18n;\n    _processI18nInsertBefore = processI18nInsertBefore;\n}\n/**\n * Appends the `child` native node (or a collection of nodes) to the `parent`.\n *\n * @param tView The `TView' to be appended\n * @param lView The current LView\n * @param childRNode The native child (or children) that should be appended\n * @param childTNode The TNode of the child element\n */\nfunction appendChild(tView, lView, childRNode, childTNode) {\n    const parentRNode = getParentRElement(tView, childTNode, lView);\n    const renderer = lView[RENDERER];\n    const parentTNode = childTNode.parent || lView[T_HOST];\n    const anchorNode = getInsertInFrontOfRNode(parentTNode, childTNode, lView);\n    if (parentRNode != null) {\n        if (Array.isArray(childRNode)) {\n            for (let i = 0; i < childRNode.length; i++) {\n                nativeAppendOrInsertBefore(renderer, parentRNode, childRNode[i], anchorNode, false);\n            }\n        }\n        else {\n            nativeAppendOrInsertBefore(renderer, parentRNode, childRNode, anchorNode, false);\n        }\n    }\n    _processI18nInsertBefore !== undefined &&\n        _processI18nInsertBefore(renderer, childTNode, lView, childRNode, parentRNode);\n}\n/**\n * Returns the first native node for a given LView, starting from the provided TNode.\n *\n * Native nodes are returned in the order in which those appear in the native tree (DOM).\n */\nfunction getFirstNativeNode(lView, tNode) {\n    if (tNode !== null) {\n        ngDevMode &&\n            assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */ | 12 /* TNodeType.AnyContainer */ | 32 /* TNodeType.Icu */ | 16 /* TNodeType.Projection */);\n        const tNodeType = tNode.type;\n        if (tNodeType & 3 /* TNodeType.AnyRNode */) {\n            return getNativeByTNode(tNode, lView);\n        }\n        else if (tNodeType & 4 /* TNodeType.Container */) {\n            return getBeforeNodeForView(-1, lView[tNode.index]);\n        }\n        else if (tNodeType & 8 /* TNodeType.ElementContainer */) {\n            const elIcuContainerChild = tNode.child;\n            if (elIcuContainerChild !== null) {\n                return getFirstNativeNode(lView, elIcuContainerChild);\n            }\n            else {\n                const rNodeOrLContainer = lView[tNode.index];\n                if (isLContainer(rNodeOrLContainer)) {\n                    return getBeforeNodeForView(-1, rNodeOrLContainer);\n                }\n                else {\n                    return unwrapRNode(rNodeOrLContainer);\n                }\n            }\n        }\n        else if (tNodeType & 32 /* TNodeType.Icu */) {\n            let nextRNode = icuContainerIterate(tNode, lView);\n            let rNode = nextRNode();\n            // If the ICU container has no nodes, than we use the ICU anchor as the node.\n            return rNode || unwrapRNode(lView[tNode.index]);\n        }\n        else {\n            const projectionNodes = getProjectionNodes(lView, tNode);\n            if (projectionNodes !== null) {\n                if (Array.isArray(projectionNodes)) {\n                    return projectionNodes[0];\n                }\n                const parentView = getLViewParent(lView[DECLARATION_COMPONENT_VIEW]);\n                ngDevMode && assertParentView(parentView);\n                return getFirstNativeNode(parentView, projectionNodes);\n            }\n            else {\n                return getFirstNativeNode(lView, tNode.next);\n            }\n        }\n    }\n    return null;\n}\nfunction getProjectionNodes(lView, tNode) {\n    if (tNode !== null) {\n        const componentView = lView[DECLARATION_COMPONENT_VIEW];\n        const componentHost = componentView[T_HOST];\n        const slotIdx = tNode.projection;\n        ngDevMode && assertProjectionSlots(lView);\n        return componentHost.projection[slotIdx];\n    }\n    return null;\n}\nfunction getBeforeNodeForView(viewIndexInContainer, lContainer) {\n    const nextViewIndex = CONTAINER_HEADER_OFFSET + viewIndexInContainer + 1;\n    if (nextViewIndex < lContainer.length) {\n        const lView = lContainer[nextViewIndex];\n        const firstTNodeOfView = lView[TVIEW].firstChild;\n        if (firstTNodeOfView !== null) {\n            return getFirstNativeNode(lView, firstTNodeOfView);\n        }\n    }\n    return lContainer[NATIVE];\n}\n/**\n * Removes a native node itself using a given renderer. To remove the node we are looking up its\n * parent from the native tree as not all platforms / browsers support the equivalent of\n * node.remove().\n *\n * @param renderer A renderer to be used\n * @param rNode The native node that should be removed\n * @param isHostElement A flag indicating if a node to be removed is a host of a component.\n */\nfunction nativeRemoveNode(renderer, rNode, isHostElement) {\n    ngDevMode && ngDevMode.rendererRemoveNode++;\n    const nativeParent = nativeParentNode(renderer, rNode);\n    if (nativeParent) {\n        nativeRemoveChild(renderer, nativeParent, rNode, isHostElement);\n    }\n}\n/**\n * Clears the contents of a given RElement.\n *\n * @param rElement the native RElement to be cleared\n */\nfunction clearElementContents(rElement) {\n    rElement.textContent = '';\n}\n/**\n * Performs the operation of `action` on the node. Typically this involves inserting or removing\n * nodes on the LView or projection boundary.\n */\nfunction applyNodes(renderer, action, tNode, lView, parentRElement, beforeNode, isProjection) {\n    while (tNode != null) {\n        ngDevMode && assertTNodeForLView(tNode, lView);\n        ngDevMode &&\n            assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */ | 12 /* TNodeType.AnyContainer */ | 16 /* TNodeType.Projection */ | 32 /* TNodeType.Icu */);\n        const rawSlotValue = lView[tNode.index];\n        const tNodeType = tNode.type;\n        if (isProjection) {\n            if (action === 0 /* WalkTNodeTreeAction.Create */) {\n                rawSlotValue && attachPatchData(unwrapRNode(rawSlotValue), lView);\n                tNode.flags |= 2 /* TNodeFlags.isProjected */;\n            }\n        }\n        if ((tNode.flags & 32 /* TNodeFlags.isDetached */) !== 32 /* TNodeFlags.isDetached */) {\n            if (tNodeType & 8 /* TNodeType.ElementContainer */) {\n                applyNodes(renderer, action, tNode.child, lView, parentRElement, beforeNode, false);\n                applyToElementOrContainer(action, renderer, parentRElement, rawSlotValue, beforeNode);\n            }\n            else if (tNodeType & 32 /* TNodeType.Icu */) {\n                const nextRNode = icuContainerIterate(tNode, lView);\n                let rNode;\n                while (rNode = nextRNode()) {\n                    applyToElementOrContainer(action, renderer, parentRElement, rNode, beforeNode);\n                }\n                applyToElementOrContainer(action, renderer, parentRElement, rawSlotValue, beforeNode);\n            }\n            else if (tNodeType & 16 /* TNodeType.Projection */) {\n                applyProjectionRecursive(renderer, action, lView, tNode, parentRElement, beforeNode);\n            }\n            else {\n                ngDevMode && assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */ | 4 /* TNodeType.Container */);\n                applyToElementOrContainer(action, renderer, parentRElement, rawSlotValue, beforeNode);\n            }\n        }\n        tNode = isProjection ? tNode.projectionNext : tNode.next;\n    }\n}\nfunction applyView(tView, lView, renderer, action, parentRElement, beforeNode) {\n    applyNodes(renderer, action, tView.firstChild, lView, parentRElement, beforeNode, false);\n}\n/**\n * `applyProjection` performs operation on the projection.\n *\n * Inserting a projection requires us to locate the projected nodes from the parent component. The\n * complication is that those nodes themselves could be re-projected from their parent component.\n *\n * @param tView The `TView` of `LView` which needs to be inserted, detached, destroyed\n * @param lView The `LView` which needs to be inserted, detached, destroyed.\n * @param tProjectionNode node to project\n */\nfunction applyProjection(tView, lView, tProjectionNode) {\n    const renderer = lView[RENDERER];\n    const parentRNode = getParentRElement(tView, tProjectionNode, lView);\n    const parentTNode = tProjectionNode.parent || lView[T_HOST];\n    let beforeNode = getInsertInFrontOfRNode(parentTNode, tProjectionNode, lView);\n    applyProjectionRecursive(renderer, 0 /* WalkTNodeTreeAction.Create */, lView, tProjectionNode, parentRNode, beforeNode);\n}\n/**\n * `applyProjectionRecursive` performs operation on the projection specified by `action` (insert,\n * detach, destroy)\n *\n * Inserting a projection requires us to locate the projected nodes from the parent component. The\n * complication is that those nodes themselves could be re-projected from their parent component.\n *\n * @param renderer Render to use\n * @param action action to perform (insert, detach, destroy)\n * @param lView The LView which needs to be inserted, detached, destroyed.\n * @param tProjectionNode node to project\n * @param parentRElement parent DOM element for insertion/removal.\n * @param beforeNode Before which node the insertions should happen.\n */\nfunction applyProjectionRecursive(renderer, action, lView, tProjectionNode, parentRElement, beforeNode) {\n    const componentLView = lView[DECLARATION_COMPONENT_VIEW];\n    const componentNode = componentLView[T_HOST];\n    ngDevMode &&\n        assertEqual(typeof tProjectionNode.projection, 'number', 'expecting projection index');\n    const nodeToProjectOrRNodes = componentNode.projection[tProjectionNode.projection];\n    if (Array.isArray(nodeToProjectOrRNodes)) {\n        // This should not exist, it is a bit of a hack. When we bootstrap a top level node and we\n        // need to support passing projectable nodes, so we cheat and put them in the TNode\n        // of the Host TView. (Yes we put instance info at the T Level). We can get away with it\n        // because we know that that TView is not shared and therefore it will not be a problem.\n        // This should be refactored and cleaned up.\n        for (let i = 0; i < nodeToProjectOrRNodes.length; i++) {\n            const rNode = nodeToProjectOrRNodes[i];\n            applyToElementOrContainer(action, renderer, parentRElement, rNode, beforeNode);\n        }\n    }\n    else {\n        let nodeToProject = nodeToProjectOrRNodes;\n        const projectedComponentLView = componentLView[PARENT];\n        // If a parent <ng-content> is located within a skip hydration block,\n        // annotate an actual node that is being projected with the same flag too.\n        if (hasInSkipHydrationBlockFlag(tProjectionNode)) {\n            nodeToProject.flags |= 128 /* TNodeFlags.inSkipHydrationBlock */;\n        }\n        applyNodes(renderer, action, nodeToProject, projectedComponentLView, parentRElement, beforeNode, true);\n    }\n}\n/**\n * `applyContainer` performs an operation on the container and its views as specified by\n * `action` (insert, detach, destroy)\n *\n * Inserting a Container is complicated by the fact that the container may have Views which\n * themselves have containers or projections.\n *\n * @param renderer Renderer to use\n * @param action action to perform (insert, detach, destroy)\n * @param lContainer The LContainer which needs to be inserted, detached, destroyed.\n * @param parentRElement parent DOM element for insertion/removal.\n * @param beforeNode Before which node the insertions should happen.\n */\nfunction applyContainer(renderer, action, lContainer, parentRElement, beforeNode) {\n    ngDevMode && assertLContainer(lContainer);\n    const anchor = lContainer[NATIVE]; // LContainer has its own before node.\n    const native = unwrapRNode(lContainer);\n    // An LContainer can be created dynamically on any node by injecting ViewContainerRef.\n    // Asking for a ViewContainerRef on an element will result in a creation of a separate anchor\n    // node (comment in the DOM) that will be different from the LContainer's host node. In this\n    // particular case we need to execute action on 2 nodes:\n    // - container's host node (this is done in the executeActionOnElementOrContainer)\n    // - container's host node (this is done here)\n    if (anchor !== native) {\n        // This is very strange to me (Misko). I would expect that the native is same as anchor. I\n        // don't see a reason why they should be different, but they are.\n        //\n        // If they are we need to process the second anchor as well.\n        applyToElementOrContainer(action, renderer, parentRElement, anchor, beforeNode);\n    }\n    for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n        const lView = lContainer[i];\n        applyView(lView[TVIEW], lView, renderer, action, parentRElement, anchor);\n    }\n}\n/**\n * Writes class/style to element.\n *\n * @param renderer Renderer to use.\n * @param isClassBased `true` if it should be written to `class` (`false` to write to `style`)\n * @param rNode The Node to write to.\n * @param prop Property to write to. This would be the class/style name.\n * @param value Value to write. If `null`/`undefined`/`false` this is considered a remove (set/add\n *        otherwise).\n */\nfunction applyStyling(renderer, isClassBased, rNode, prop, value) {\n    if (isClassBased) {\n        // We actually want JS true/false here because any truthy value should add the class\n        if (!value) {\n            ngDevMode && ngDevMode.rendererRemoveClass++;\n            renderer.removeClass(rNode, prop);\n        }\n        else {\n            ngDevMode && ngDevMode.rendererAddClass++;\n            renderer.addClass(rNode, prop);\n        }\n    }\n    else {\n        let flags = prop.indexOf('-') === -1 ? undefined : RendererStyleFlags2.DashCase;\n        if (value == null /** || value === undefined */) {\n            ngDevMode && ngDevMode.rendererRemoveStyle++;\n            renderer.removeStyle(rNode, prop, flags);\n        }\n        else {\n            // A value is important if it ends with `!important`. The style\n            // parser strips any semicolons at the end of the value.\n            const isImportant = typeof value === 'string' ? value.endsWith('!important') : false;\n            if (isImportant) {\n                // !important has to be stripped from the value for it to be valid.\n                value = value.slice(0, -10);\n                flags |= RendererStyleFlags2.Important;\n            }\n            ngDevMode && ngDevMode.rendererSetStyle++;\n            renderer.setStyle(rNode, prop, value, flags);\n        }\n    }\n}\n/**\n * Write `cssText` to `RElement`.\n *\n * This function does direct write without any reconciliation. Used for writing initial values, so\n * that static styling values do not pull in the style parser.\n *\n * @param renderer Renderer to use\n * @param element The element which needs to be updated.\n * @param newValue The new class list to write.\n */\nfunction writeDirectStyle(renderer, element, newValue) {\n    ngDevMode && assertString(newValue, '\\'newValue\\' should be a string');\n    renderer.setAttribute(element, 'style', newValue);\n    ngDevMode && ngDevMode.rendererSetStyle++;\n}\n/**\n * Write `className` to `RElement`.\n *\n * This function does direct write without any reconciliation. Used for writing initial values, so\n * that static styling values do not pull in the style parser.\n *\n * @param renderer Renderer to use\n * @param element The element which needs to be updated.\n * @param newValue The new class list to write.\n */\nfunction writeDirectClass(renderer, element, newValue) {\n    ngDevMode && assertString(newValue, '\\'newValue\\' should be a string');\n    if (newValue === '') {\n        // There are tests in `google3` which expect `element.getAttribute('class')` to be `null`.\n        renderer.removeAttribute(element, 'class');\n    }\n    else {\n        renderer.setAttribute(element, 'class', newValue);\n    }\n    ngDevMode && ngDevMode.rendererSetClassName++;\n}\n/** Sets up the static DOM attributes on an `RNode`. */\nfunction setupStaticAttributes(renderer, element, tNode) {\n    const { mergedAttrs, classes, styles } = tNode;\n    if (mergedAttrs !== null) {\n        setUpAttributes(renderer, element, mergedAttrs);\n    }\n    if (classes !== null) {\n        writeDirectClass(renderer, element, classes);\n    }\n    if (styles !== null) {\n        writeDirectStyle(renderer, element, styles);\n    }\n}\n\n/**\n * @fileoverview\n * A module to facilitate use of a Trusted Types policy internally within\n * Angular. It lazily constructs the Trusted Types policy, providing helper\n * utilities for promoting strings to Trusted Types. When Trusted Types are not\n * available, strings are used as a fallback.\n * @security All use of this module is security-sensitive and should go through\n * security review.\n */\n/**\n * The Trusted Types policy, or null if Trusted Types are not\n * enabled/supported, or undefined if the policy has not been created yet.\n */\nlet policy$1;\n/**\n * Returns the Trusted Types policy, or null if Trusted Types are not\n * enabled/supported. The first call to this function will create the policy.\n */\nfunction getPolicy$1() {\n    if (policy$1 === undefined) {\n        policy$1 = null;\n        if (_global.trustedTypes) {\n            try {\n                policy$1 = _global.trustedTypes.createPolicy('angular', {\n                    createHTML: (s) => s,\n                    createScript: (s) => s,\n                    createScriptURL: (s) => s,\n                });\n            }\n            catch {\n                // trustedTypes.createPolicy throws if called with a name that is\n                // already registered, even in report-only mode. Until the API changes,\n                // catch the error not to break the applications functionally. In such\n                // cases, the code will fall back to using strings.\n            }\n        }\n    }\n    return policy$1;\n}\n/**\n * Unsafely promote a string to a TrustedHTML, falling back to strings when\n * Trusted Types are not available.\n * @security This is a security-sensitive function; any use of this function\n * must go through security review. In particular, it must be assured that the\n * provided string will never cause an XSS vulnerability if used in a context\n * that will be interpreted as HTML by a browser, e.g. when assigning to\n * element.innerHTML.\n */\nfunction trustedHTMLFromString(html) {\n    return getPolicy$1()?.createHTML(html) || html;\n}\n/**\n * Unsafely promote a string to a TrustedScript, falling back to strings when\n * Trusted Types are not available.\n * @security In particular, it must be assured that the provided string will\n * never cause an XSS vulnerability if used in a context that will be\n * interpreted and executed as a script by a browser, e.g. when calling eval.\n */\nfunction trustedScriptFromString(script) {\n    return getPolicy$1()?.createScript(script) || script;\n}\n/**\n * Unsafely promote a string to a TrustedScriptURL, falling back to strings\n * when Trusted Types are not available.\n * @security This is a security-sensitive function; any use of this function\n * must go through security review. In particular, it must be assured that the\n * provided string will never cause an XSS vulnerability if used in a context\n * that will cause a browser to load and execute a resource, e.g. when\n * assigning to script.src.\n */\nfunction trustedScriptURLFromString(url) {\n    return getPolicy$1()?.createScriptURL(url) || url;\n}\n/**\n * Unsafely call the Function constructor with the given string arguments. It\n * is only available in development mode, and should be stripped out of\n * production code.\n * @security This is a security-sensitive function; any use of this function\n * must go through security review. In particular, it must be assured that it\n * is only called from development code, as use in production code can lead to\n * XSS vulnerabilities.\n */\nfunction newTrustedFunctionForDev(...args) {\n    if (typeof ngDevMode === 'undefined') {\n        throw new Error('newTrustedFunctionForDev should never be called in production');\n    }\n    if (!_global.trustedTypes) {\n        // In environments that don't support Trusted Types, fall back to the most\n        // straightforward implementation:\n        return new Function(...args);\n    }\n    // Chrome currently does not support passing TrustedScript to the Function\n    // constructor. The following implements the workaround proposed on the page\n    // below, where the Chromium bug is also referenced:\n    // https://github.com/w3c/webappsec-trusted-types/wiki/Trusted-Types-for-function-constructor\n    const fnArgs = args.slice(0, -1).join(',');\n    const fnBody = args[args.length - 1];\n    const body = `(function anonymous(${fnArgs}\n) { ${fnBody}\n})`;\n    // Using eval directly confuses the compiler and prevents this module from\n    // being stripped out of JS binaries even if not used. The global['eval']\n    // indirection fixes that.\n    const fn = _global['eval'](trustedScriptFromString(body));\n    if (fn.bind === undefined) {\n        // Workaround for a browser bug that only exists in Chrome 83, where passing\n        // a TrustedScript to eval just returns the TrustedScript back without\n        // evaluating it. In that case, fall back to the most straightforward\n        // implementation:\n        return new Function(...args);\n    }\n    // To completely mimic the behavior of calling \"new Function\", two more\n    // things need to happen:\n    // 1. Stringifying the resulting function should return its source code\n    fn.toString = () => body;\n    // 2. When calling the resulting function, `this` should refer to `global`\n    return fn.bind(_global);\n    // When Trusted Types support in Function constructors is widely available,\n    // the implementation of this function can be simplified to:\n    // return new Function(...args.map(a => trustedScriptFromString(a)));\n}\n\n/**\n * Validation function invoked at runtime for each binding that might potentially\n * represent a security-sensitive attribute of an <iframe>.\n * See `IFRAME_SECURITY_SENSITIVE_ATTRS` in the\n * `packages/compiler/src/schema/dom_security_schema.ts` script for the full list\n * of such attributes.\n *\n * @codeGenApi\n */\nfunction ɵɵvalidateIframeAttribute(attrValue, tagName, attrName) {\n    const lView = getLView();\n    const tNode = getSelectedTNode();\n    const element = getNativeByTNode(tNode, lView);\n    // Restrict any dynamic bindings of security-sensitive attributes/properties\n    // on an <iframe> for security reasons.\n    if (tNode.type === 2 /* TNodeType.Element */ && tagName.toLowerCase() === 'iframe') {\n        const iframe = element;\n        // Unset previously applied `src` and `srcdoc` if we come across a situation when\n        // a security-sensitive attribute is set later via an attribute/property binding.\n        iframe.src = '';\n        iframe.srcdoc = trustedHTMLFromString('');\n        // Also remove the <iframe> from the document.\n        nativeRemoveNode(lView[RENDERER], iframe);\n        const errorMessage = ngDevMode &&\n            `Angular has detected that the \\`${attrName}\\` was applied ` +\n                `as a binding to an <iframe>${getTemplateLocationDetails(lView)}. ` +\n                `For security reasons, the \\`${attrName}\\` can be set on an <iframe> ` +\n                `as a static attribute only. \\n` +\n                `To fix this, switch the \\`${attrName}\\` binding to a static attribute ` +\n                `in a template or in host bindings section.`;\n        throw new RuntimeError(-910 /* RuntimeErrorCode.UNSAFE_IFRAME_ATTRS */, errorMessage);\n    }\n    return attrValue;\n}\n\n/**\n * Most of the use of `document` in Angular is from within the DI system so it is possible to simply\n * inject the `DOCUMENT` token and are done.\n *\n * Ivy is special because it does not rely upon the DI and must get hold of the document some other\n * way.\n *\n * The solution is to define `getDocument()` and `setDocument()` top-level functions for ivy.\n * Wherever ivy needs the global document, it calls `getDocument()` instead.\n *\n * When running ivy outside of a browser environment, it is necessary to call `setDocument()` to\n * tell ivy what the global `document` is.\n *\n * Angular does this for us in each of the standard platforms (`Browser` and `Server`)\n * by calling `setDocument()` when providing the `DOCUMENT` token.\n */\nlet DOCUMENT = undefined;\n/**\n * Tell ivy what the `document` is for this platform.\n *\n * It is only necessary to call this if the current platform is not a browser.\n *\n * @param document The object representing the global `document` in this environment.\n */\nfunction setDocument(document) {\n    DOCUMENT = document;\n}\n/**\n * Access the object that represents the `document` for this platform.\n *\n * Ivy calls this whenever it needs to access the `document` object.\n * For example to create the renderer or to do sanitization.\n */\nfunction getDocument() {\n    if (DOCUMENT !== undefined) {\n        return DOCUMENT;\n    }\n    else if (typeof document !== 'undefined') {\n        return document;\n    }\n    throw new RuntimeError(210 /* RuntimeErrorCode.MISSING_DOCUMENT */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n        `The document object is not available in this context. Make sure the DOCUMENT injection token is provided.`);\n    // No \"document\" can be found. This should only happen if we are running ivy outside Angular and\n    // the current platform is not a browser. Since this is not a supported scenario at the moment\n    // this should not happen in Angular apps.\n    // Once we support running ivy outside of Angular we will need to publish `setDocument()` as a\n    // public API.\n}\n\n/**\n * @fileoverview\n * A module to facilitate use of a Trusted Types policy internally within\n * Angular specifically for bypassSecurityTrust* and custom sanitizers. It\n * lazily constructs the Trusted Types policy, providing helper utilities for\n * promoting strings to Trusted Types. When Trusted Types are not available,\n * strings are used as a fallback.\n * @security All use of this module is security-sensitive and should go through\n * security review.\n */\n/**\n * The Trusted Types policy, or null if Trusted Types are not\n * enabled/supported, or undefined if the policy has not been created yet.\n */\nlet policy;\n/**\n * Returns the Trusted Types policy, or null if Trusted Types are not\n * enabled/supported. The first call to this function will create the policy.\n */\nfunction getPolicy() {\n    if (policy === undefined) {\n        policy = null;\n        if (_global.trustedTypes) {\n            try {\n                policy = _global.trustedTypes\n                    .createPolicy('angular#unsafe-bypass', {\n                    createHTML: (s) => s,\n                    createScript: (s) => s,\n                    createScriptURL: (s) => s,\n                });\n            }\n            catch {\n                // trustedTypes.createPolicy throws if called with a name that is\n                // already registered, even in report-only mode. Until the API changes,\n                // catch the error not to break the applications functionally. In such\n                // cases, the code will fall back to using strings.\n            }\n        }\n    }\n    return policy;\n}\n/**\n * Unsafely promote a string to a TrustedHTML, falling back to strings when\n * Trusted Types are not available.\n * @security This is a security-sensitive function; any use of this function\n * must go through security review. In particular, it must be assured that it\n * is only passed strings that come directly from custom sanitizers or the\n * bypassSecurityTrust* functions.\n */\nfunction trustedHTMLFromStringBypass(html) {\n    return getPolicy()?.createHTML(html) || html;\n}\n/**\n * Unsafely promote a string to a TrustedScript, falling back to strings when\n * Trusted Types are not available.\n * @security This is a security-sensitive function; any use of this function\n * must go through security review. In particular, it must be assured that it\n * is only passed strings that come directly from custom sanitizers or the\n * bypassSecurityTrust* functions.\n */\nfunction trustedScriptFromStringBypass(script) {\n    return getPolicy()?.createScript(script) || script;\n}\n/**\n * Unsafely promote a string to a TrustedScriptURL, falling back to strings\n * when Trusted Types are not available.\n * @security This is a security-sensitive function; any use of this function\n * must go through security review. In particular, it must be assured that it\n * is only passed strings that come directly from custom sanitizers or the\n * bypassSecurityTrust* functions.\n */\nfunction trustedScriptURLFromStringBypass(url) {\n    return getPolicy()?.createScriptURL(url) || url;\n}\n\nclass SafeValueImpl {\n    constructor(changingThisBreaksApplicationSecurity) {\n        this.changingThisBreaksApplicationSecurity = changingThisBreaksApplicationSecurity;\n    }\n    toString() {\n        return `SafeValue must use [property]=binding: ${this.changingThisBreaksApplicationSecurity}` +\n            ` (see ${XSS_SECURITY_URL})`;\n    }\n}\nclass SafeHtmlImpl extends SafeValueImpl {\n    getTypeName() {\n        return \"HTML\" /* BypassType.Html */;\n    }\n}\nclass SafeStyleImpl extends SafeValueImpl {\n    getTypeName() {\n        return \"Style\" /* BypassType.Style */;\n    }\n}\nclass SafeScriptImpl extends SafeValueImpl {\n    getTypeName() {\n        return \"Script\" /* BypassType.Script */;\n    }\n}\nclass SafeUrlImpl extends SafeValueImpl {\n    getTypeName() {\n        return \"URL\" /* BypassType.Url */;\n    }\n}\nclass SafeResourceUrlImpl extends SafeValueImpl {\n    getTypeName() {\n        return \"ResourceURL\" /* BypassType.ResourceUrl */;\n    }\n}\nfunction unwrapSafeValue(value) {\n    return value instanceof SafeValueImpl ? value.changingThisBreaksApplicationSecurity :\n        value;\n}\nfunction allowSanitizationBypassAndThrow(value, type) {\n    const actualType = getSanitizationBypassType(value);\n    if (actualType != null && actualType !== type) {\n        // Allow ResourceURLs in URL contexts, they are strictly more trusted.\n        if (actualType === \"ResourceURL\" /* BypassType.ResourceUrl */ && type === \"URL\" /* BypassType.Url */)\n            return true;\n        throw new Error(`Required a safe ${type}, got a ${actualType} (see ${XSS_SECURITY_URL})`);\n    }\n    return actualType === type;\n}\nfunction getSanitizationBypassType(value) {\n    return value instanceof SafeValueImpl && value.getTypeName() || null;\n}\n/**\n * Mark `html` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {@link htmlSanitizer} to be trusted implicitly.\n *\n * @param trustedHtml `html` string which needs to be implicitly trusted.\n * @returns a `html` which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustHtml(trustedHtml) {\n    return new SafeHtmlImpl(trustedHtml);\n}\n/**\n * Mark `style` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {@link styleSanitizer} to be trusted implicitly.\n *\n * @param trustedStyle `style` string which needs to be implicitly trusted.\n * @returns a `style` hich has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustStyle(trustedStyle) {\n    return new SafeStyleImpl(trustedStyle);\n}\n/**\n * Mark `script` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {@link scriptSanitizer} to be trusted implicitly.\n *\n * @param trustedScript `script` string which needs to be implicitly trusted.\n * @returns a `script` which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustScript(trustedScript) {\n    return new SafeScriptImpl(trustedScript);\n}\n/**\n * Mark `url` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {@link urlSanitizer} to be trusted implicitly.\n *\n * @param trustedUrl `url` string which needs to be implicitly trusted.\n * @returns a `url`  which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustUrl(trustedUrl) {\n    return new SafeUrlImpl(trustedUrl);\n}\n/**\n * Mark `url` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {@link resourceUrlSanitizer} to be trusted implicitly.\n *\n * @param trustedResourceUrl `url` string which needs to be implicitly trusted.\n * @returns a `url` which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustResourceUrl(trustedResourceUrl) {\n    return new SafeResourceUrlImpl(trustedResourceUrl);\n}\n\n/**\n * This helper is used to get hold of an inert tree of DOM elements containing dirty HTML\n * that needs sanitizing.\n * Depending upon browser support we use one of two strategies for doing this.\n * Default: DOMParser strategy\n * Fallback: InertDocument strategy\n */\nfunction getInertBodyHelper(defaultDoc) {\n    const inertDocumentHelper = new InertDocumentHelper(defaultDoc);\n    return isDOMParserAvailable() ? new DOMParserHelper(inertDocumentHelper) : inertDocumentHelper;\n}\n/**\n * Uses DOMParser to create and fill an inert body element.\n * This is the default strategy used in browsers that support it.\n */\nclass DOMParserHelper {\n    constructor(inertDocumentHelper) {\n        this.inertDocumentHelper = inertDocumentHelper;\n    }\n    getInertBodyElement(html) {\n        // We add these extra elements to ensure that the rest of the content is parsed as expected\n        // e.g. leading whitespace is maintained and tags like `<meta>` do not get hoisted to the\n        // `<head>` tag. Note that the `<body>` tag is closed implicitly to prevent unclosed tags\n        // in `html` from consuming the otherwise explicit `</body>` tag.\n        html = '<body><remove></remove>' + html;\n        try {\n            const body = new window.DOMParser()\n                .parseFromString(trustedHTMLFromString(html), 'text/html')\n                .body;\n            if (body === null) {\n                // In some browsers (e.g. Mozilla/5.0 iPad AppleWebKit Mobile) the `body` property only\n                // becomes available in the following tick of the JS engine. In that case we fall back to\n                // the `inertDocumentHelper` instead.\n                return this.inertDocumentHelper.getInertBodyElement(html);\n            }\n            body.removeChild(body.firstChild);\n            return body;\n        }\n        catch {\n            return null;\n        }\n    }\n}\n/**\n * Use an HTML5 `template` element to create and fill an inert DOM element.\n * This is the fallback strategy if the browser does not support DOMParser.\n */\nclass InertDocumentHelper {\n    constructor(defaultDoc) {\n        this.defaultDoc = defaultDoc;\n        this.inertDocument = this.defaultDoc.implementation.createHTMLDocument('sanitization-inert');\n    }\n    getInertBodyElement(html) {\n        const templateEl = this.inertDocument.createElement('template');\n        templateEl.innerHTML = trustedHTMLFromString(html);\n        return templateEl;\n    }\n}\n/**\n * We need to determine whether the DOMParser exists in the global context and\n * supports parsing HTML; HTML parsing support is not as wide as other formats, see\n * https://developer.mozilla.org/en-US/docs/Web/API/DOMParser#Browser_compatibility.\n *\n * @suppress {uselessCode}\n */\nfunction isDOMParserAvailable() {\n    try {\n        return !!new window.DOMParser().parseFromString(trustedHTMLFromString(''), 'text/html');\n    }\n    catch {\n        return false;\n    }\n}\n\n/**\n * A pattern that recognizes URLs that are safe wrt. XSS in URL navigation\n * contexts.\n *\n * This regular expression matches a subset of URLs that will not cause script\n * execution if used in URL context within a HTML document. Specifically, this\n * regular expression matches if:\n * (1) Either a protocol that is not javascript:, and that has valid characters\n *     (alphanumeric or [+-.]).\n * (2) or no protocol.  A protocol must be followed by a colon. The below\n *     allows that by allowing colons only after one of the characters [/?#].\n *     A colon after a hash (#) must be in the fragment.\n *     Otherwise, a colon after a (?) must be in a query.\n *     Otherwise, a colon after a single solidus (/) must be in a path.\n *     Otherwise, a colon after a double solidus (//) must be in the authority\n *     (before port).\n *\n * The pattern disallows &, used in HTML entity declarations before\n * one of the characters in [/?#]. This disallows HTML entities used in the\n * protocol name, which should never happen, e.g. \"h&#116;tp\" for \"http\".\n * It also disallows HTML entities in the first path part of a relative path,\n * e.g. \"foo&lt;bar/baz\".  Our existing escaping functions should not produce\n * that. More importantly, it disallows masking of a colon,\n * e.g. \"javascript&#58;...\".\n *\n * This regular expression was taken from the Closure sanitization library.\n */\nconst SAFE_URL_PATTERN = /^(?!javascript:)(?:[a-z0-9+.-]+:|[^&:\\/?#]*(?:[\\/?#]|$))/i;\nfunction _sanitizeUrl(url) {\n    url = String(url);\n    if (url.match(SAFE_URL_PATTERN))\n        return url;\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        console.warn(`WARNING: sanitizing unsafe URL value ${url} (see ${XSS_SECURITY_URL})`);\n    }\n    return 'unsafe:' + url;\n}\n\nfunction tagSet(tags) {\n    const res = {};\n    for (const t of tags.split(','))\n        res[t] = true;\n    return res;\n}\nfunction merge(...sets) {\n    const res = {};\n    for (const s of sets) {\n        for (const v in s) {\n            if (s.hasOwnProperty(v))\n                res[v] = true;\n        }\n    }\n    return res;\n}\n// Good source of info about elements and attributes\n// https://html.spec.whatwg.org/#semantics\n// https://simon.html5.org/html-elements\n// Safe Void Elements - HTML5\n// https://html.spec.whatwg.org/#void-elements\nconst VOID_ELEMENTS = tagSet('area,br,col,hr,img,wbr');\n// Elements that you can, intentionally, leave open (and which close themselves)\n// https://html.spec.whatwg.org/#optional-tags\nconst OPTIONAL_END_TAG_BLOCK_ELEMENTS = tagSet('colgroup,dd,dt,li,p,tbody,td,tfoot,th,thead,tr');\nconst OPTIONAL_END_TAG_INLINE_ELEMENTS = tagSet('rp,rt');\nconst OPTIONAL_END_TAG_ELEMENTS = merge(OPTIONAL_END_TAG_INLINE_ELEMENTS, OPTIONAL_END_TAG_BLOCK_ELEMENTS);\n// Safe Block Elements - HTML5\nconst BLOCK_ELEMENTS = merge(OPTIONAL_END_TAG_BLOCK_ELEMENTS, tagSet('address,article,' +\n    'aside,blockquote,caption,center,del,details,dialog,dir,div,dl,figure,figcaption,footer,h1,h2,h3,h4,h5,' +\n    'h6,header,hgroup,hr,ins,main,map,menu,nav,ol,pre,section,summary,table,ul'));\n// Inline Elements - HTML5\nconst INLINE_ELEMENTS = merge(OPTIONAL_END_TAG_INLINE_ELEMENTS, tagSet('a,abbr,acronym,audio,b,' +\n    'bdi,bdo,big,br,cite,code,del,dfn,em,font,i,img,ins,kbd,label,map,mark,picture,q,ruby,rp,rt,s,' +\n    'samp,small,source,span,strike,strong,sub,sup,time,track,tt,u,var,video'));\nconst VALID_ELEMENTS = merge(VOID_ELEMENTS, BLOCK_ELEMENTS, INLINE_ELEMENTS, OPTIONAL_END_TAG_ELEMENTS);\n// Attributes that have href and hence need to be sanitized\nconst URI_ATTRS = tagSet('background,cite,href,itemtype,longdesc,poster,src,xlink:href');\nconst HTML_ATTRS = tagSet('abbr,accesskey,align,alt,autoplay,axis,bgcolor,border,cellpadding,cellspacing,class,clear,color,cols,colspan,' +\n    'compact,controls,coords,datetime,default,dir,download,face,headers,height,hidden,hreflang,hspace,' +\n    'ismap,itemscope,itemprop,kind,label,lang,language,loop,media,muted,nohref,nowrap,open,preload,rel,rev,role,rows,rowspan,rules,' +\n    'scope,scrolling,shape,size,sizes,span,srclang,srcset,start,summary,tabindex,target,title,translate,type,usemap,' +\n    'valign,value,vspace,width');\n// Accessibility attributes as per WAI-ARIA 1.1 (W3C Working Draft 14 December 2018)\nconst ARIA_ATTRS = tagSet('aria-activedescendant,aria-atomic,aria-autocomplete,aria-busy,aria-checked,aria-colcount,aria-colindex,' +\n    'aria-colspan,aria-controls,aria-current,aria-describedby,aria-details,aria-disabled,aria-dropeffect,' +\n    'aria-errormessage,aria-expanded,aria-flowto,aria-grabbed,aria-haspopup,aria-hidden,aria-invalid,' +\n    'aria-keyshortcuts,aria-label,aria-labelledby,aria-level,aria-live,aria-modal,aria-multiline,' +\n    'aria-multiselectable,aria-orientation,aria-owns,aria-placeholder,aria-posinset,aria-pressed,aria-readonly,' +\n    'aria-relevant,aria-required,aria-roledescription,aria-rowcount,aria-rowindex,aria-rowspan,aria-selected,' +\n    'aria-setsize,aria-sort,aria-valuemax,aria-valuemin,aria-valuenow,aria-valuetext');\n// NB: This currently consciously doesn't support SVG. SVG sanitization has had several security\n// issues in the past, so it seems safer to leave it out if possible. If support for binding SVG via\n// innerHTML is required, SVG attributes should be added here.\n// NB: Sanitization does not allow <form> elements or other active elements (<button> etc). Those\n// can be sanitized, but they increase security surface area without a legitimate use case, so they\n// are left out here.\nconst VALID_ATTRS = merge(URI_ATTRS, HTML_ATTRS, ARIA_ATTRS);\n// Elements whose content should not be traversed/preserved, if the elements themselves are invalid.\n//\n// Typically, `<invalid>Some content</invalid>` would traverse (and in this case preserve)\n// `Some content`, but strip `invalid-element` opening/closing tags. For some elements, though, we\n// don't want to preserve the content, if the elements themselves are going to be removed.\nconst SKIP_TRAVERSING_CONTENT_IF_INVALID_ELEMENTS = tagSet('script,style,template');\n/**\n * SanitizingHtmlSerializer serializes a DOM fragment, stripping out any unsafe elements and unsafe\n * attributes.\n */\nclass SanitizingHtmlSerializer {\n    constructor() {\n        // Explicitly track if something was stripped, to avoid accidentally warning of sanitization just\n        // because characters were re-encoded.\n        this.sanitizedSomething = false;\n        this.buf = [];\n    }\n    sanitizeChildren(el) {\n        // This cannot use a TreeWalker, as it has to run on Angular's various DOM adapters.\n        // However this code never accesses properties off of `document` before deleting its contents\n        // again, so it shouldn't be vulnerable to DOM clobbering.\n        let current = el.firstChild;\n        let traverseContent = true;\n        while (current) {\n            if (current.nodeType === Node.ELEMENT_NODE) {\n                traverseContent = this.startElement(current);\n            }\n            else if (current.nodeType === Node.TEXT_NODE) {\n                this.chars(current.nodeValue);\n            }\n            else {\n                // Strip non-element, non-text nodes.\n                this.sanitizedSomething = true;\n            }\n            if (traverseContent && current.firstChild) {\n                current = current.firstChild;\n                continue;\n            }\n            while (current) {\n                // Leaving the element. Walk up and to the right, closing tags as we go.\n                if (current.nodeType === Node.ELEMENT_NODE) {\n                    this.endElement(current);\n                }\n                let next = this.checkClobberedElement(current, current.nextSibling);\n                if (next) {\n                    current = next;\n                    break;\n                }\n                current = this.checkClobberedElement(current, current.parentNode);\n            }\n        }\n        return this.buf.join('');\n    }\n    /**\n     * Sanitizes an opening element tag (if valid) and returns whether the element's contents should\n     * be traversed. Element content must always be traversed (even if the element itself is not\n     * valid/safe), unless the element is one of `SKIP_TRAVERSING_CONTENT_IF_INVALID_ELEMENTS`.\n     *\n     * @param element The element to sanitize.\n     * @return True if the element's contents should be traversed.\n     */\n    startElement(element) {\n        const tagName = element.nodeName.toLowerCase();\n        if (!VALID_ELEMENTS.hasOwnProperty(tagName)) {\n            this.sanitizedSomething = true;\n            return !SKIP_TRAVERSING_CONTENT_IF_INVALID_ELEMENTS.hasOwnProperty(tagName);\n        }\n        this.buf.push('<');\n        this.buf.push(tagName);\n        const elAttrs = element.attributes;\n        for (let i = 0; i < elAttrs.length; i++) {\n            const elAttr = elAttrs.item(i);\n            const attrName = elAttr.name;\n            const lower = attrName.toLowerCase();\n            if (!VALID_ATTRS.hasOwnProperty(lower)) {\n                this.sanitizedSomething = true;\n                continue;\n            }\n            let value = elAttr.value;\n            // TODO(martinprobst): Special case image URIs for data:image/...\n            if (URI_ATTRS[lower])\n                value = _sanitizeUrl(value);\n            this.buf.push(' ', attrName, '=\"', encodeEntities(value), '\"');\n        }\n        this.buf.push('>');\n        return true;\n    }\n    endElement(current) {\n        const tagName = current.nodeName.toLowerCase();\n        if (VALID_ELEMENTS.hasOwnProperty(tagName) && !VOID_ELEMENTS.hasOwnProperty(tagName)) {\n            this.buf.push('</');\n            this.buf.push(tagName);\n            this.buf.push('>');\n        }\n    }\n    chars(chars) {\n        this.buf.push(encodeEntities(chars));\n    }\n    checkClobberedElement(node, nextNode) {\n        if (nextNode &&\n            (node.compareDocumentPosition(nextNode) &\n                Node.DOCUMENT_POSITION_CONTAINED_BY) === Node.DOCUMENT_POSITION_CONTAINED_BY) {\n            throw new Error(`Failed to sanitize html because the element is clobbered: ${node.outerHTML}`);\n        }\n        return nextNode;\n    }\n}\n// Regular Expressions for parsing tags and attributes\nconst SURROGATE_PAIR_REGEXP = /[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]/g;\n// ! to ~ is the ASCII range.\nconst NON_ALPHANUMERIC_REGEXP = /([^\\#-~ |!])/g;\n/**\n * Escapes all potentially dangerous characters, so that the\n * resulting string can be safely inserted into attribute or\n * element text.\n * @param value\n */\nfunction encodeEntities(value) {\n    return value.replace(/&/g, '&amp;')\n        .replace(SURROGATE_PAIR_REGEXP, function (match) {\n        const hi = match.charCodeAt(0);\n        const low = match.charCodeAt(1);\n        return '&#' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';';\n    })\n        .replace(NON_ALPHANUMERIC_REGEXP, function (match) {\n        return '&#' + match.charCodeAt(0) + ';';\n    })\n        .replace(/</g, '&lt;')\n        .replace(/>/g, '&gt;');\n}\nlet inertBodyHelper;\n/**\n * Sanitizes the given unsafe, untrusted HTML fragment, and returns HTML text that is safe to add to\n * the DOM in a browser environment.\n */\nfunction _sanitizeHtml(defaultDoc, unsafeHtmlInput) {\n    let inertBodyElement = null;\n    try {\n        inertBodyHelper = inertBodyHelper || getInertBodyHelper(defaultDoc);\n        // Make sure unsafeHtml is actually a string (TypeScript types are not enforced at runtime).\n        let unsafeHtml = unsafeHtmlInput ? String(unsafeHtmlInput) : '';\n        inertBodyElement = inertBodyHelper.getInertBodyElement(unsafeHtml);\n        // mXSS protection. Repeatedly parse the document to make sure it stabilizes, so that a browser\n        // trying to auto-correct incorrect HTML cannot cause formerly inert HTML to become dangerous.\n        let mXSSAttempts = 5;\n        let parsedHtml = unsafeHtml;\n        do {\n            if (mXSSAttempts === 0) {\n                throw new Error('Failed to sanitize html because the input is unstable');\n            }\n            mXSSAttempts--;\n            unsafeHtml = parsedHtml;\n            parsedHtml = inertBodyElement.innerHTML;\n            inertBodyElement = inertBodyHelper.getInertBodyElement(unsafeHtml);\n        } while (unsafeHtml !== parsedHtml);\n        const sanitizer = new SanitizingHtmlSerializer();\n        const safeHtml = sanitizer.sanitizeChildren(getTemplateContent(inertBodyElement) || inertBodyElement);\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && sanitizer.sanitizedSomething) {\n            console.warn(`WARNING: sanitizing HTML stripped some content, see ${XSS_SECURITY_URL}`);\n        }\n        return trustedHTMLFromString(safeHtml);\n    }\n    finally {\n        // In case anything goes wrong, clear out inertElement to reset the entire DOM structure.\n        if (inertBodyElement) {\n            const parent = getTemplateContent(inertBodyElement) || inertBodyElement;\n            while (parent.firstChild) {\n                parent.removeChild(parent.firstChild);\n            }\n        }\n    }\n}\nfunction getTemplateContent(el) {\n    return 'content' in el /** Microsoft/TypeScript#21517 */ && isTemplateElement(el) ?\n        el.content :\n        null;\n}\nfunction isTemplateElement(el) {\n    return el.nodeType === Node.ELEMENT_NODE && el.nodeName === 'TEMPLATE';\n}\n\n/**\n * A SecurityContext marks a location that has dangerous security implications, e.g. a DOM property\n * like `innerHTML` that could cause Cross Site Scripting (XSS) security bugs when improperly\n * handled.\n *\n * See DomSanitizer for more details on security in Angular applications.\n *\n * @publicApi\n */\nvar SecurityContext;\n(function (SecurityContext) {\n    SecurityContext[SecurityContext[\"NONE\"] = 0] = \"NONE\";\n    SecurityContext[SecurityContext[\"HTML\"] = 1] = \"HTML\";\n    SecurityContext[SecurityContext[\"STYLE\"] = 2] = \"STYLE\";\n    SecurityContext[SecurityContext[\"SCRIPT\"] = 3] = \"SCRIPT\";\n    SecurityContext[SecurityContext[\"URL\"] = 4] = \"URL\";\n    SecurityContext[SecurityContext[\"RESOURCE_URL\"] = 5] = \"RESOURCE_URL\";\n})(SecurityContext || (SecurityContext = {}));\n\n/**\n * An `html` sanitizer which converts untrusted `html` **string** into trusted string by removing\n * dangerous content.\n *\n * This method parses the `html` and locates potentially dangerous content (such as urls and\n * javascript) and removes it.\n *\n * It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustHtml}.\n *\n * @param unsafeHtml untrusted `html`, typically from the user.\n * @returns `html` string which is safe to display to user, because all of the dangerous javascript\n * and urls have been removed.\n *\n * @codeGenApi\n */\nfunction ɵɵsanitizeHtml(unsafeHtml) {\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return trustedHTMLFromStringBypass(sanitizer.sanitize(SecurityContext.HTML, unsafeHtml) || '');\n    }\n    if (allowSanitizationBypassAndThrow(unsafeHtml, \"HTML\" /* BypassType.Html */)) {\n        return trustedHTMLFromStringBypass(unwrapSafeValue(unsafeHtml));\n    }\n    return _sanitizeHtml(getDocument(), renderStringify(unsafeHtml));\n}\n/**\n * A `style` sanitizer which converts untrusted `style` **string** into trusted string by removing\n * dangerous content.\n *\n * It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustStyle}.\n *\n * @param unsafeStyle untrusted `style`, typically from the user.\n * @returns `style` string which is safe to bind to the `style` properties.\n *\n * @codeGenApi\n */\nfunction ɵɵsanitizeStyle(unsafeStyle) {\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return sanitizer.sanitize(SecurityContext.STYLE, unsafeStyle) || '';\n    }\n    if (allowSanitizationBypassAndThrow(unsafeStyle, \"Style\" /* BypassType.Style */)) {\n        return unwrapSafeValue(unsafeStyle);\n    }\n    return renderStringify(unsafeStyle);\n}\n/**\n * A `url` sanitizer which converts untrusted `url` **string** into trusted string by removing\n * dangerous\n * content.\n *\n * This method parses the `url` and locates potentially dangerous content (such as javascript) and\n * removes it.\n *\n * It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustUrl}.\n *\n * @param unsafeUrl untrusted `url`, typically from the user.\n * @returns `url` string which is safe to bind to the `src` properties such as `<img src>`, because\n * all of the dangerous javascript has been removed.\n *\n * @codeGenApi\n */\nfunction ɵɵsanitizeUrl(unsafeUrl) {\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return sanitizer.sanitize(SecurityContext.URL, unsafeUrl) || '';\n    }\n    if (allowSanitizationBypassAndThrow(unsafeUrl, \"URL\" /* BypassType.Url */)) {\n        return unwrapSafeValue(unsafeUrl);\n    }\n    return _sanitizeUrl(renderStringify(unsafeUrl));\n}\n/**\n * A `url` sanitizer which only lets trusted `url`s through.\n *\n * This passes only `url`s marked trusted by calling {@link bypassSanitizationTrustResourceUrl}.\n *\n * @param unsafeResourceUrl untrusted `url`, typically from the user.\n * @returns `url` string which is safe to bind to the `src` properties such as `<img src>`, because\n * only trusted `url`s have been allowed to pass.\n *\n * @codeGenApi\n */\nfunction ɵɵsanitizeResourceUrl(unsafeResourceUrl) {\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return trustedScriptURLFromStringBypass(sanitizer.sanitize(SecurityContext.RESOURCE_URL, unsafeResourceUrl) || '');\n    }\n    if (allowSanitizationBypassAndThrow(unsafeResourceUrl, \"ResourceURL\" /* BypassType.ResourceUrl */)) {\n        return trustedScriptURLFromStringBypass(unwrapSafeValue(unsafeResourceUrl));\n    }\n    throw new RuntimeError(904 /* RuntimeErrorCode.UNSAFE_VALUE_IN_RESOURCE_URL */, ngDevMode && `unsafe value used in a resource URL context (see ${XSS_SECURITY_URL})`);\n}\n/**\n * A `script` sanitizer which only lets trusted javascript through.\n *\n * This passes only `script`s marked trusted by calling {@link\n * bypassSanitizationTrustScript}.\n *\n * @param unsafeScript untrusted `script`, typically from the user.\n * @returns `url` string which is safe to bind to the `<script>` element such as `<img src>`,\n * because only trusted `scripts` have been allowed to pass.\n *\n * @codeGenApi\n */\nfunction ɵɵsanitizeScript(unsafeScript) {\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return trustedScriptFromStringBypass(sanitizer.sanitize(SecurityContext.SCRIPT, unsafeScript) || '');\n    }\n    if (allowSanitizationBypassAndThrow(unsafeScript, \"Script\" /* BypassType.Script */)) {\n        return trustedScriptFromStringBypass(unwrapSafeValue(unsafeScript));\n    }\n    throw new RuntimeError(905 /* RuntimeErrorCode.UNSAFE_VALUE_IN_SCRIPT */, ngDevMode && 'unsafe value used in a script context');\n}\n/**\n * A template tag function for promoting the associated constant literal to a\n * TrustedHTML. Interpolation is explicitly not allowed.\n *\n * @param html constant template literal containing trusted HTML.\n * @returns TrustedHTML wrapping `html`.\n *\n * @security This is a security-sensitive function and should only be used to\n * convert constant values of attributes and properties found in\n * application-provided Angular templates to TrustedHTML.\n *\n * @codeGenApi\n */\nfunction ɵɵtrustConstantHtml(html) {\n    // The following runtime check ensures that the function was called as a\n    // template tag (e.g. ɵɵtrustConstantHtml`content`), without any interpolation\n    // (e.g. not ɵɵtrustConstantHtml`content ${variable}`). A TemplateStringsArray\n    // is an array with a `raw` property that is also an array. The associated\n    // template literal has no interpolation if and only if the length of the\n    // TemplateStringsArray is 1.\n    if (ngDevMode && (!Array.isArray(html) || !Array.isArray(html.raw) || html.length !== 1)) {\n        throw new Error(`Unexpected interpolation in trusted HTML constant: ${html.join('?')}`);\n    }\n    return trustedHTMLFromString(html[0]);\n}\n/**\n * A template tag function for promoting the associated constant literal to a\n * TrustedScriptURL. Interpolation is explicitly not allowed.\n *\n * @param url constant template literal containing a trusted script URL.\n * @returns TrustedScriptURL wrapping `url`.\n *\n * @security This is a security-sensitive function and should only be used to\n * convert constant values of attributes and properties found in\n * application-provided Angular templates to TrustedScriptURL.\n *\n * @codeGenApi\n */\nfunction ɵɵtrustConstantResourceUrl(url) {\n    // The following runtime check ensures that the function was called as a\n    // template tag (e.g. ɵɵtrustConstantResourceUrl`content`), without any\n    // interpolation (e.g. not ɵɵtrustConstantResourceUrl`content ${variable}`). A\n    // TemplateStringsArray is an array with a `raw` property that is also an\n    // array. The associated template literal has no interpolation if and only if\n    // the length of the TemplateStringsArray is 1.\n    if (ngDevMode && (!Array.isArray(url) || !Array.isArray(url.raw) || url.length !== 1)) {\n        throw new Error(`Unexpected interpolation in trusted URL constant: ${url.join('?')}`);\n    }\n    return trustedScriptURLFromString(url[0]);\n}\n/**\n * Detects which sanitizer to use for URL property, based on tag name and prop name.\n *\n * The rules are based on the RESOURCE_URL context config from\n * `packages/compiler/src/schema/dom_security_schema.ts`.\n * If tag and prop names don't match Resource URL schema, use URL sanitizer.\n */\nfunction getUrlSanitizer(tag, prop) {\n    if ((prop === 'src' &&\n        (tag === 'embed' || tag === 'frame' || tag === 'iframe' || tag === 'media' ||\n            tag === 'script')) ||\n        (prop === 'href' && (tag === 'base' || tag === 'link'))) {\n        return ɵɵsanitizeResourceUrl;\n    }\n    return ɵɵsanitizeUrl;\n}\n/**\n * Sanitizes URL, selecting sanitizer function based on tag and property names.\n *\n * This function is used in case we can't define security context at compile time, when only prop\n * name is available. This happens when we generate host bindings for Directives/Components. The\n * host element is unknown at compile time, so we defer calculation of specific sanitizer to\n * runtime.\n *\n * @param unsafeUrl untrusted `url`, typically from the user.\n * @param tag target element tag name.\n * @param prop name of the property that contains the value.\n * @returns `url` string which is safe to bind.\n *\n * @codeGenApi\n */\nfunction ɵɵsanitizeUrlOrResourceUrl(unsafeUrl, tag, prop) {\n    return getUrlSanitizer(tag, prop)(unsafeUrl);\n}\nfunction validateAgainstEventProperties(name) {\n    if (name.toLowerCase().startsWith('on')) {\n        const errorMessage = `Binding to event property '${name}' is disallowed for security reasons, ` +\n            `please use (${name.slice(2)})=...` +\n            `\\nIf '${name}' is a directive input, make sure the directive is imported by the` +\n            ` current module.`;\n        throw new RuntimeError(306 /* RuntimeErrorCode.INVALID_EVENT_BINDING */, errorMessage);\n    }\n}\nfunction validateAgainstEventAttributes(name) {\n    if (name.toLowerCase().startsWith('on')) {\n        const errorMessage = `Binding to event attribute '${name}' is disallowed for security reasons, ` +\n            `please use (${name.slice(2)})=...`;\n        throw new RuntimeError(306 /* RuntimeErrorCode.INVALID_EVENT_BINDING */, errorMessage);\n    }\n}\nfunction getSanitizer() {\n    const lView = getLView();\n    return lView && lView[ENVIRONMENT].sanitizer;\n}\n\n/**\n * A multi-provider token for initialization functions that will run upon construction of an\n * environment injector.\n *\n * @publicApi\n */\nconst ENVIRONMENT_INITIALIZER = new InjectionToken('ENVIRONMENT_INITIALIZER');\n\n/**\n * An InjectionToken that gets the current `Injector` for `createInjector()`-style injectors.\n *\n * Requesting this token instead of `Injector` allows `StaticInjector` to be tree-shaken from a\n * project.\n *\n * @publicApi\n */\nconst INJECTOR = new InjectionToken('INJECTOR', \n// Disable tslint because this is const enum which gets inlined not top level prop access.\n// tslint:disable-next-line: no-toplevel-property-access\n-1 /* InjectorMarkers.Injector */);\n\nconst INJECTOR_DEF_TYPES = new InjectionToken('INJECTOR_DEF_TYPES');\n\nclass NullInjector {\n    get(token, notFoundValue = THROW_IF_NOT_FOUND) {\n        if (notFoundValue === THROW_IF_NOT_FOUND) {\n            const error = new Error(`NullInjectorError: No provider for ${stringify(token)}!`);\n            error.name = 'NullInjectorError';\n            throw error;\n        }\n        return notFoundValue;\n    }\n}\n\n/**\n * Wrap an array of `Provider`s into `EnvironmentProviders`, preventing them from being accidentally\n * referenced in `@Component` in a component injector.\n */\nfunction makeEnvironmentProviders(providers) {\n    return {\n        ɵproviders: providers,\n    };\n}\n/**\n * Collects providers from all NgModules and standalone components, including transitively imported\n * ones.\n *\n * Providers extracted via `importProvidersFrom` are only usable in an application injector or\n * another environment injector (such as a route injector). They should not be used in component\n * providers.\n *\n * More information about standalone components can be found in [this\n * guide](guide/standalone-components).\n *\n * @usageNotes\n * The results of the `importProvidersFrom` call can be used in the `bootstrapApplication` call:\n *\n * ```typescript\n * await bootstrapApplication(RootComponent, {\n *   providers: [\n *     importProvidersFrom(NgModuleOne, NgModuleTwo)\n *   ]\n * });\n * ```\n *\n * You can also use the `importProvidersFrom` results in the `providers` field of a route, when a\n * standalone component is used:\n *\n * ```typescript\n * export const ROUTES: Route[] = [\n *   {\n *     path: 'foo',\n *     providers: [\n *       importProvidersFrom(NgModuleOne, NgModuleTwo)\n *     ],\n *     component: YourStandaloneComponent\n *   }\n * ];\n * ```\n *\n * @returns Collected providers from the specified list of types.\n * @publicApi\n */\nfunction importProvidersFrom(...sources) {\n    return {\n        ɵproviders: internalImportProvidersFrom(true, sources),\n        ɵfromNgModule: true,\n    };\n}\nfunction internalImportProvidersFrom(checkForStandaloneCmp, ...sources) {\n    const providersOut = [];\n    const dedup = new Set(); // already seen types\n    let injectorTypesWithProviders;\n    const collectProviders = (provider) => {\n        providersOut.push(provider);\n    };\n    deepForEach(sources, source => {\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && checkForStandaloneCmp) {\n            const cmpDef = getComponentDef(source);\n            if (cmpDef?.standalone) {\n                throw new RuntimeError(800 /* RuntimeErrorCode.IMPORT_PROVIDERS_FROM_STANDALONE */, `Importing providers supports NgModule or ModuleWithProviders but got a standalone component \"${stringifyForError(source)}\"`);\n            }\n        }\n        // Narrow `source` to access the internal type analogue for `ModuleWithProviders`.\n        const internalSource = source;\n        if (walkProviderTree(internalSource, collectProviders, [], dedup)) {\n            injectorTypesWithProviders ||= [];\n            injectorTypesWithProviders.push(internalSource);\n        }\n    });\n    // Collect all providers from `ModuleWithProviders` types.\n    if (injectorTypesWithProviders !== undefined) {\n        processInjectorTypesWithProviders(injectorTypesWithProviders, collectProviders);\n    }\n    return providersOut;\n}\n/**\n * Collects all providers from the list of `ModuleWithProviders` and appends them to the provided\n * array.\n */\nfunction processInjectorTypesWithProviders(typesWithProviders, visitor) {\n    for (let i = 0; i < typesWithProviders.length; i++) {\n        const { ngModule, providers } = typesWithProviders[i];\n        deepForEachProvider(providers, provider => {\n            ngDevMode && validateProvider(provider, providers || EMPTY_ARRAY, ngModule);\n            visitor(provider, ngModule);\n        });\n    }\n}\n/**\n * The logic visits an `InjectorType`, an `InjectorTypeWithProviders`, or a standalone\n * `ComponentType`, and all of its transitive providers and collects providers.\n *\n * If an `InjectorTypeWithProviders` that declares providers besides the type is specified,\n * the function will return \"true\" to indicate that the providers of the type definition need\n * to be processed. This allows us to process providers of injector types after all imports of\n * an injector definition are processed. (following View Engine semantics: see FW-1349)\n */\nfunction walkProviderTree(container, visitor, parents, dedup) {\n    container = resolveForwardRef(container);\n    if (!container)\n        return false;\n    // The actual type which had the definition. Usually `container`, but may be an unwrapped type\n    // from `InjectorTypeWithProviders`.\n    let defType = null;\n    let injDef = getInjectorDef(container);\n    const cmpDef = !injDef && getComponentDef(container);\n    if (!injDef && !cmpDef) {\n        // `container` is not an injector type or a component type. It might be:\n        //  * An `InjectorTypeWithProviders` that wraps an injector type.\n        //  * A standalone directive or pipe that got pulled in from a standalone component's\n        //    dependencies.\n        // Try to unwrap it as an `InjectorTypeWithProviders` first.\n        const ngModule = container.ngModule;\n        injDef = getInjectorDef(ngModule);\n        if (injDef) {\n            defType = ngModule;\n        }\n        else {\n            // Not a component or injector type, so ignore it.\n            return false;\n        }\n    }\n    else if (cmpDef && !cmpDef.standalone) {\n        return false;\n    }\n    else {\n        defType = container;\n    }\n    // Check for circular dependencies.\n    if (ngDevMode && parents.indexOf(defType) !== -1) {\n        const defName = stringify(defType);\n        const path = parents.map(stringify);\n        throwCyclicDependencyError(defName, path);\n    }\n    // Check for multiple imports of the same module\n    const isDuplicate = dedup.has(defType);\n    if (cmpDef) {\n        if (isDuplicate) {\n            // This component definition has already been processed.\n            return false;\n        }\n        dedup.add(defType);\n        if (cmpDef.dependencies) {\n            const deps = typeof cmpDef.dependencies === 'function' ? cmpDef.dependencies() : cmpDef.dependencies;\n            for (const dep of deps) {\n                walkProviderTree(dep, visitor, parents, dedup);\n            }\n        }\n    }\n    else if (injDef) {\n        // First, include providers from any imports.\n        if (injDef.imports != null && !isDuplicate) {\n            // Before processing defType's imports, add it to the set of parents. This way, if it ends\n            // up deeply importing itself, this can be detected.\n            ngDevMode && parents.push(defType);\n            // Add it to the set of dedups. This way we can detect multiple imports of the same module\n            dedup.add(defType);\n            let importTypesWithProviders;\n            try {\n                deepForEach(injDef.imports, imported => {\n                    if (walkProviderTree(imported, visitor, parents, dedup)) {\n                        importTypesWithProviders ||= [];\n                        // If the processed import is an injector type with providers, we store it in the\n                        // list of import types with providers, so that we can process those afterwards.\n                        importTypesWithProviders.push(imported);\n                    }\n                });\n            }\n            finally {\n                // Remove it from the parents set when finished.\n                ngDevMode && parents.pop();\n            }\n            // Imports which are declared with providers (TypeWithProviders) need to be processed\n            // after all imported modules are processed. This is similar to how View Engine\n            // processes/merges module imports in the metadata resolver. See: FW-1349.\n            if (importTypesWithProviders !== undefined) {\n                processInjectorTypesWithProviders(importTypesWithProviders, visitor);\n            }\n        }\n        if (!isDuplicate) {\n            // Track the InjectorType and add a provider for it.\n            // It's important that this is done after the def's imports.\n            const factory = getFactoryDef(defType) || (() => new defType());\n            // Append extra providers to make more info available for consumers (to retrieve an injector\n            // type), as well as internally (to calculate an injection scope correctly and eagerly\n            // instantiate a `defType` when an injector is created).\n            // Provider to create `defType` using its factory.\n            visitor({ provide: defType, useFactory: factory, deps: EMPTY_ARRAY }, defType);\n            // Make this `defType` available to an internal logic that calculates injector scope.\n            visitor({ provide: INJECTOR_DEF_TYPES, useValue: defType, multi: true }, defType);\n            // Provider to eagerly instantiate `defType` via `INJECTOR_INITIALIZER`.\n            visitor({ provide: ENVIRONMENT_INITIALIZER, useValue: () => ɵɵinject(defType), multi: true }, defType);\n        }\n        // Next, include providers listed on the definition itself.\n        const defProviders = injDef.providers;\n        if (defProviders != null && !isDuplicate) {\n            const injectorType = container;\n            deepForEachProvider(defProviders, provider => {\n                ngDevMode && validateProvider(provider, defProviders, injectorType);\n                visitor(provider, injectorType);\n            });\n        }\n    }\n    else {\n        // Should not happen, but just in case.\n        return false;\n    }\n    return (defType !== container &&\n        container.providers !== undefined);\n}\nfunction validateProvider(provider, providers, containerType) {\n    if (isTypeProvider(provider) || isValueProvider(provider) || isFactoryProvider(provider) ||\n        isExistingProvider(provider)) {\n        return;\n    }\n    // Here we expect the provider to be a `useClass` provider (by elimination).\n    const classRef = resolveForwardRef(provider && (provider.useClass || provider.provide));\n    if (!classRef) {\n        throwInvalidProviderError(containerType, providers, provider);\n    }\n}\nfunction deepForEachProvider(providers, fn) {\n    for (let provider of providers) {\n        if (isEnvironmentProviders(provider)) {\n            provider = provider.ɵproviders;\n        }\n        if (Array.isArray(provider)) {\n            deepForEachProvider(provider, fn);\n        }\n        else {\n            fn(provider);\n        }\n    }\n}\nconst USE_VALUE$1 = getClosureSafeProperty({ provide: String, useValue: getClosureSafeProperty });\nfunction isValueProvider(value) {\n    return value !== null && typeof value == 'object' && USE_VALUE$1 in value;\n}\nfunction isExistingProvider(value) {\n    return !!(value && value.useExisting);\n}\nfunction isFactoryProvider(value) {\n    return !!(value && value.useFactory);\n}\nfunction isTypeProvider(value) {\n    return typeof value === 'function';\n}\nfunction isClassProvider(value) {\n    return !!value.useClass;\n}\n\n/**\n * An internal token whose presence in an injector indicates that the injector should treat itself\n * as a root scoped injector when processing requests for unknown tokens which may indicate\n * they are provided in the root scope.\n */\nconst INJECTOR_SCOPE = new InjectionToken('Set Injector scope.');\n\n/**\n * Marker which indicates that a value has not yet been created from the factory function.\n */\nconst NOT_YET = {};\n/**\n * Marker which indicates that the factory function for a token is in the process of being called.\n *\n * If the injector is asked to inject a token with its value set to CIRCULAR, that indicates\n * injection of a dependency has recursively attempted to inject the original token, and there is\n * a circular dependency among the providers.\n */\nconst CIRCULAR = {};\n/**\n * A lazily initialized NullInjector.\n */\nlet NULL_INJECTOR = undefined;\nfunction getNullInjector() {\n    if (NULL_INJECTOR === undefined) {\n        NULL_INJECTOR = new NullInjector();\n    }\n    return NULL_INJECTOR;\n}\n/**\n * An `Injector` that's part of the environment injector hierarchy, which exists outside of the\n * component tree.\n */\nclass EnvironmentInjector {\n}\nclass R3Injector extends EnvironmentInjector {\n    /**\n     * Flag indicating that this injector was previously destroyed.\n     */\n    get destroyed() {\n        return this._destroyed;\n    }\n    constructor(providers, parent, source, scopes) {\n        super();\n        this.parent = parent;\n        this.source = source;\n        this.scopes = scopes;\n        /**\n         * Map of tokens to records which contain the instances of those tokens.\n         * - `null` value implies that we don't have the record. Used by tree-shakable injectors\n         * to prevent further searches.\n         */\n        this.records = new Map();\n        /**\n         * Set of values instantiated by this injector which contain `ngOnDestroy` lifecycle hooks.\n         */\n        this._ngOnDestroyHooks = new Set();\n        this._onDestroyHooks = [];\n        this._destroyed = false;\n        // Start off by creating Records for every provider.\n        forEachSingleProvider(providers, provider => this.processProvider(provider));\n        // Make sure the INJECTOR token provides this injector.\n        this.records.set(INJECTOR, makeRecord(undefined, this));\n        // And `EnvironmentInjector` if the current injector is supposed to be env-scoped.\n        if (scopes.has('environment')) {\n            this.records.set(EnvironmentInjector, makeRecord(undefined, this));\n        }\n        // Detect whether this injector has the APP_ROOT_SCOPE token and thus should provide\n        // any injectable scoped to APP_ROOT_SCOPE.\n        const record = this.records.get(INJECTOR_SCOPE);\n        if (record != null && typeof record.value === 'string') {\n            this.scopes.add(record.value);\n        }\n        this.injectorDefTypes =\n            new Set(this.get(INJECTOR_DEF_TYPES.multi, EMPTY_ARRAY, InjectFlags.Self));\n    }\n    /**\n     * Destroy the injector and release references to every instance or provider associated with it.\n     *\n     * Also calls the `OnDestroy` lifecycle hooks of every instance that was created for which a\n     * hook was found.\n     */\n    destroy() {\n        this.assertNotDestroyed();\n        // Set destroyed = true first, in case lifecycle hooks re-enter destroy().\n        this._destroyed = true;\n        try {\n            // Call all the lifecycle hooks.\n            for (const service of this._ngOnDestroyHooks) {\n                service.ngOnDestroy();\n            }\n            const onDestroyHooks = this._onDestroyHooks;\n            // Reset the _onDestroyHooks array before iterating over it to prevent hooks that unregister\n            // themselves from mutating the array during iteration.\n            this._onDestroyHooks = [];\n            for (const hook of onDestroyHooks) {\n                hook();\n            }\n        }\n        finally {\n            // Release all references.\n            this.records.clear();\n            this._ngOnDestroyHooks.clear();\n            this.injectorDefTypes.clear();\n        }\n    }\n    onDestroy(callback) {\n        this.assertNotDestroyed();\n        this._onDestroyHooks.push(callback);\n        return () => this.removeOnDestroy(callback);\n    }\n    runInContext(fn) {\n        this.assertNotDestroyed();\n        const previousInjector = setCurrentInjector(this);\n        const previousInjectImplementation = setInjectImplementation(undefined);\n        let prevInjectContext;\n        if (ngDevMode) {\n            prevInjectContext = setInjectorProfilerContext({ injector: this, token: null });\n        }\n        try {\n            return fn();\n        }\n        finally {\n            setCurrentInjector(previousInjector);\n            setInjectImplementation(previousInjectImplementation);\n            ngDevMode && setInjectorProfilerContext(prevInjectContext);\n        }\n    }\n    get(token, notFoundValue = THROW_IF_NOT_FOUND, flags = InjectFlags.Default) {\n        this.assertNotDestroyed();\n        if (token.hasOwnProperty(NG_ENV_ID)) {\n            return token[NG_ENV_ID](this);\n        }\n        flags = convertToBitFlags(flags);\n        // Set the injection context.\n        let prevInjectContext;\n        if (ngDevMode) {\n            prevInjectContext = setInjectorProfilerContext({ injector: this, token: token });\n        }\n        const previousInjector = setCurrentInjector(this);\n        const previousInjectImplementation = setInjectImplementation(undefined);\n        try {\n            // Check for the SkipSelf flag.\n            if (!(flags & InjectFlags.SkipSelf)) {\n                // SkipSelf isn't set, check if the record belongs to this injector.\n                let record = this.records.get(token);\n                if (record === undefined) {\n                    // No record, but maybe the token is scoped to this injector. Look for an injectable\n                    // def with a scope matching this injector.\n                    const def = couldBeInjectableType(token) && getInjectableDef(token);\n                    if (def && this.injectableDefInScope(def)) {\n                        // Found an injectable def and it's scoped to this injector. Pretend as if it was here\n                        // all along.\n                        if (ngDevMode) {\n                            runInInjectorProfilerContext(this, token, () => {\n                                emitProviderConfiguredEvent(token);\n                            });\n                        }\n                        record = makeRecord(injectableDefOrInjectorDefFactory(token), NOT_YET);\n                    }\n                    else {\n                        record = null;\n                    }\n                    this.records.set(token, record);\n                }\n                // If a record was found, get the instance for it and return it.\n                if (record != null /* NOT null || undefined */) {\n                    return this.hydrate(token, record);\n                }\n            }\n            // Select the next injector based on the Self flag - if self is set, the next injector is\n            // the NullInjector, otherwise it's the parent.\n            const nextInjector = !(flags & InjectFlags.Self) ? this.parent : getNullInjector();\n            // Set the notFoundValue based on the Optional flag - if optional is set and notFoundValue\n            // is undefined, the value is null, otherwise it's the notFoundValue.\n            notFoundValue = (flags & InjectFlags.Optional) && notFoundValue === THROW_IF_NOT_FOUND ?\n                null :\n                notFoundValue;\n            return nextInjector.get(token, notFoundValue);\n        }\n        catch (e) {\n            if (e.name === 'NullInjectorError') {\n                const path = e[NG_TEMP_TOKEN_PATH] = e[NG_TEMP_TOKEN_PATH] || [];\n                path.unshift(stringify(token));\n                if (previousInjector) {\n                    // We still have a parent injector, keep throwing\n                    throw e;\n                }\n                else {\n                    // Format & throw the final error message when we don't have any previous injector\n                    return catchInjectorError(e, token, 'R3InjectorError', this.source);\n                }\n            }\n            else {\n                throw e;\n            }\n        }\n        finally {\n            // Lastly, restore the previous injection context.\n            setInjectImplementation(previousInjectImplementation);\n            setCurrentInjector(previousInjector);\n            ngDevMode && setInjectorProfilerContext(prevInjectContext);\n        }\n    }\n    /** @internal */\n    resolveInjectorInitializers() {\n        const previousInjector = setCurrentInjector(this);\n        const previousInjectImplementation = setInjectImplementation(undefined);\n        let prevInjectContext;\n        if (ngDevMode) {\n            prevInjectContext = setInjectorProfilerContext({ injector: this, token: null });\n        }\n        try {\n            const initializers = this.get(ENVIRONMENT_INITIALIZER.multi, EMPTY_ARRAY, InjectFlags.Self);\n            if (ngDevMode && !Array.isArray(initializers)) {\n                throw new RuntimeError(-209 /* RuntimeErrorCode.INVALID_MULTI_PROVIDER */, 'Unexpected type of the `ENVIRONMENT_INITIALIZER` token value ' +\n                    `(expected an array, but got ${typeof initializers}). ` +\n                    'Please check that the `ENVIRONMENT_INITIALIZER` token is configured as a ' +\n                    '`multi: true` provider.');\n            }\n            for (const initializer of initializers) {\n                initializer();\n            }\n        }\n        finally {\n            setCurrentInjector(previousInjector);\n            setInjectImplementation(previousInjectImplementation);\n            ngDevMode && setInjectorProfilerContext(prevInjectContext);\n        }\n    }\n    toString() {\n        const tokens = [];\n        const records = this.records;\n        for (const token of records.keys()) {\n            tokens.push(stringify(token));\n        }\n        return `R3Injector[${tokens.join(', ')}]`;\n    }\n    assertNotDestroyed() {\n        if (this._destroyed) {\n            throw new RuntimeError(205 /* RuntimeErrorCode.INJECTOR_ALREADY_DESTROYED */, ngDevMode && 'Injector has already been destroyed.');\n        }\n    }\n    /**\n     * Process a `SingleProvider` and add it.\n     */\n    processProvider(provider) {\n        // Determine the token from the provider. Either it's its own token, or has a {provide: ...}\n        // property.\n        provider = resolveForwardRef(provider);\n        let token = isTypeProvider(provider) ? provider : resolveForwardRef(provider && provider.provide);\n        // Construct a `Record` for the provider.\n        const record = providerToRecord(provider);\n        if (ngDevMode) {\n            runInInjectorProfilerContext(this, token, () => {\n                // Emit InjectorProfilerEventType.Create if provider is a value provider because\n                // these are the only providers that do not go through the value hydration logic\n                // where this event would normally be emitted from.\n                if (isValueProvider(provider)) {\n                    emitInstanceCreatedByInjectorEvent(provider.useValue);\n                }\n                emitProviderConfiguredEvent(provider);\n            });\n        }\n        if (!isTypeProvider(provider) && provider.multi === true) {\n            // If the provider indicates that it's a multi-provider, process it specially.\n            // First check whether it's been defined already.\n            let multiRecord = this.records.get(token);\n            if (multiRecord) {\n                // It has. Throw a nice error if\n                if (ngDevMode && multiRecord.multi === undefined) {\n                    throwMixedMultiProviderError();\n                }\n            }\n            else {\n                multiRecord = makeRecord(undefined, NOT_YET, true);\n                multiRecord.factory = () => injectArgs(multiRecord.multi);\n                this.records.set(token, multiRecord);\n            }\n            token = provider;\n            multiRecord.multi.push(provider);\n        }\n        else {\n            const existing = this.records.get(token);\n            if (ngDevMode && existing && existing.multi !== undefined) {\n                throwMixedMultiProviderError();\n            }\n        }\n        this.records.set(token, record);\n    }\n    hydrate(token, record) {\n        if (ngDevMode && record.value === CIRCULAR) {\n            throwCyclicDependencyError(stringify(token));\n        }\n        else if (record.value === NOT_YET) {\n            record.value = CIRCULAR;\n            if (ngDevMode) {\n                runInInjectorProfilerContext(this, token, () => {\n                    record.value = record.factory();\n                    emitInstanceCreatedByInjectorEvent(record.value);\n                });\n            }\n            else {\n                record.value = record.factory();\n            }\n        }\n        if (typeof record.value === 'object' && record.value && hasOnDestroy(record.value)) {\n            this._ngOnDestroyHooks.add(record.value);\n        }\n        return record.value;\n    }\n    injectableDefInScope(def) {\n        if (!def.providedIn) {\n            return false;\n        }\n        const providedIn = resolveForwardRef(def.providedIn);\n        if (typeof providedIn === 'string') {\n            return providedIn === 'any' || (this.scopes.has(providedIn));\n        }\n        else {\n            return this.injectorDefTypes.has(providedIn);\n        }\n    }\n    removeOnDestroy(callback) {\n        const destroyCBIdx = this._onDestroyHooks.indexOf(callback);\n        if (destroyCBIdx !== -1) {\n            this._onDestroyHooks.splice(destroyCBIdx, 1);\n        }\n    }\n}\nfunction injectableDefOrInjectorDefFactory(token) {\n    // Most tokens will have an injectable def directly on them, which specifies a factory directly.\n    const injectableDef = getInjectableDef(token);\n    const factory = injectableDef !== null ? injectableDef.factory : getFactoryDef(token);\n    if (factory !== null) {\n        return factory;\n    }\n    // InjectionTokens should have an injectable def (ɵprov) and thus should be handled above.\n    // If it's missing that, it's an error.\n    if (token instanceof InjectionToken) {\n        throw new RuntimeError(204 /* RuntimeErrorCode.INVALID_INJECTION_TOKEN */, ngDevMode && `Token ${stringify(token)} is missing a ɵprov definition.`);\n    }\n    // Undecorated types can sometimes be created if they have no constructor arguments.\n    if (token instanceof Function) {\n        return getUndecoratedInjectableFactory(token);\n    }\n    // There was no way to resolve a factory for this token.\n    throw new RuntimeError(204 /* RuntimeErrorCode.INVALID_INJECTION_TOKEN */, ngDevMode && 'unreachable');\n}\nfunction getUndecoratedInjectableFactory(token) {\n    // If the token has parameters then it has dependencies that we cannot resolve implicitly.\n    const paramLength = token.length;\n    if (paramLength > 0) {\n        const args = newArray(paramLength, '?');\n        throw new RuntimeError(204 /* RuntimeErrorCode.INVALID_INJECTION_TOKEN */, ngDevMode && `Can't resolve all parameters for ${stringify(token)}: (${args.join(', ')}).`);\n    }\n    // The constructor function appears to have no parameters.\n    // This might be because it inherits from a super-class. In which case, use an injectable\n    // def from an ancestor if there is one.\n    // Otherwise this really is a simple class with no dependencies, so return a factory that\n    // just instantiates the zero-arg constructor.\n    const inheritedInjectableDef = getInheritedInjectableDef(token);\n    if (inheritedInjectableDef !== null) {\n        return () => inheritedInjectableDef.factory(token);\n    }\n    else {\n        return () => new token();\n    }\n}\nfunction providerToRecord(provider) {\n    if (isValueProvider(provider)) {\n        return makeRecord(undefined, provider.useValue);\n    }\n    else {\n        const factory = providerToFactory(provider);\n        return makeRecord(factory, NOT_YET);\n    }\n}\n/**\n * Converts a `SingleProvider` into a factory function.\n *\n * @param provider provider to convert to factory\n */\nfunction providerToFactory(provider, ngModuleType, providers) {\n    let factory = undefined;\n    if (ngDevMode && isEnvironmentProviders(provider)) {\n        throwInvalidProviderError(undefined, providers, provider);\n    }\n    if (isTypeProvider(provider)) {\n        const unwrappedProvider = resolveForwardRef(provider);\n        return getFactoryDef(unwrappedProvider) || injectableDefOrInjectorDefFactory(unwrappedProvider);\n    }\n    else {\n        if (isValueProvider(provider)) {\n            factory = () => resolveForwardRef(provider.useValue);\n        }\n        else if (isFactoryProvider(provider)) {\n            factory = () => provider.useFactory(...injectArgs(provider.deps || []));\n        }\n        else if (isExistingProvider(provider)) {\n            factory = () => ɵɵinject(resolveForwardRef(provider.useExisting));\n        }\n        else {\n            const classRef = resolveForwardRef(provider &&\n                (provider.useClass || provider.provide));\n            if (ngDevMode && !classRef) {\n                throwInvalidProviderError(ngModuleType, providers, provider);\n            }\n            if (hasDeps(provider)) {\n                factory = () => new (classRef)(...injectArgs(provider.deps));\n            }\n            else {\n                return getFactoryDef(classRef) || injectableDefOrInjectorDefFactory(classRef);\n            }\n        }\n    }\n    return factory;\n}\nfunction makeRecord(factory, value, multi = false) {\n    return {\n        factory: factory,\n        value: value,\n        multi: multi ? [] : undefined,\n    };\n}\nfunction hasDeps(value) {\n    return !!value.deps;\n}\nfunction hasOnDestroy(value) {\n    return value !== null && typeof value === 'object' &&\n        typeof value.ngOnDestroy === 'function';\n}\nfunction couldBeInjectableType(value) {\n    return (typeof value === 'function') ||\n        (typeof value === 'object' && value instanceof InjectionToken);\n}\nfunction forEachSingleProvider(providers, fn) {\n    for (const provider of providers) {\n        if (Array.isArray(provider)) {\n            forEachSingleProvider(provider, fn);\n        }\n        else if (provider && isEnvironmentProviders(provider)) {\n            forEachSingleProvider(provider.ɵproviders, fn);\n        }\n        else {\n            fn(provider);\n        }\n    }\n}\n\n/**\n * A [DI token](guide/glossary#di-token \"DI token definition\") representing a string ID, used\n * primarily for prefixing application attributes and CSS styles when\n * {@link ViewEncapsulation#Emulated} is being used.\n *\n * The token is needed in cases when multiple applications are bootstrapped on a page\n * (for example, using `bootstrapApplication` calls). In this case, ensure that those applications\n * have different `APP_ID` value setup. For example:\n *\n * ```\n * bootstrapApplication(ComponentA, {\n *   providers: [\n *     { provide: APP_ID, useValue: 'app-a' },\n *     // ... other providers ...\n *   ]\n * });\n *\n * bootstrapApplication(ComponentB, {\n *   providers: [\n *     { provide: APP_ID, useValue: 'app-b' },\n *     // ... other providers ...\n *   ]\n * });\n * ```\n *\n * By default, when there is only one application bootstrapped, you don't need to provide the\n * `APP_ID` token (the `ng` will be used as an app ID).\n *\n * @publicApi\n */\nconst APP_ID = new InjectionToken('AppId', {\n    providedIn: 'root',\n    factory: () => DEFAULT_APP_ID,\n});\n/** Default value of the `APP_ID` token. */\nconst DEFAULT_APP_ID = 'ng';\n/**\n * A function that is executed when a platform is initialized.\n * @publicApi\n */\nconst PLATFORM_INITIALIZER = new InjectionToken('Platform Initializer');\n/**\n * A token that indicates an opaque platform ID.\n * @publicApi\n */\nconst PLATFORM_ID = new InjectionToken('Platform ID', {\n    providedIn: 'platform',\n    factory: () => 'unknown', // set a default platform name, when none set explicitly\n});\n/**\n * A [DI token](guide/glossary#di-token \"DI token definition\") that indicates the root directory of\n * the application\n * @publicApi\n * @deprecated\n */\nconst PACKAGE_ROOT_URL = new InjectionToken('Application Packages Root URL');\n// We keep this token here, rather than the animations package, so that modules that only care\n// about which animations module is loaded (e.g. the CDK) can retrieve it without having to\n// include extra dependencies. See #44970 for more context.\n/**\n * A [DI token](guide/glossary#di-token \"DI token definition\") that indicates which animations\n * module has been loaded.\n * @publicApi\n */\nconst ANIMATION_MODULE_TYPE = new InjectionToken('AnimationModuleType');\n// TODO(crisbeto): link to CSP guide here.\n/**\n * Token used to configure the [Content Security Policy](https://web.dev/strict-csp/) nonce that\n * Angular will apply when inserting inline styles. If not provided, Angular will look up its value\n * from the `ngCspNonce` attribute of the application root node.\n *\n * @publicApi\n */\nconst CSP_NONCE = new InjectionToken('CSP nonce', {\n    providedIn: 'root',\n    factory: () => {\n        // Ideally we wouldn't have to use `querySelector` here since we know that the nonce will be on\n        // the root node, but because the token value is used in renderers, it has to be available\n        // *very* early in the bootstrapping process. This should be a fairly shallow search, because\n        // the app won't have been added to the DOM yet. Some approaches that were considered:\n        // 1. Find the root node through `ApplicationRef.components[i].location` - normally this would\n        // be enough for our purposes, but the token is injected very early so the `components` array\n        // isn't populated yet.\n        // 2. Find the root `LView` through the current `LView` - renderers are a prerequisite to\n        // creating the `LView`. This means that no `LView` will have been entered when this factory is\n        // invoked for the root component.\n        // 3. Have the token factory return `() => string` which is invoked when a nonce is requested -\n        // the slightly later execution does allow us to get an `LView` reference, but the fact that\n        // it is a function means that it could be executed at *any* time (including immediately) which\n        // may lead to weird bugs.\n        // 4. Have the `ComponentFactory` read the attribute and provide it to the injector under the\n        // hood - has the same problem as #1 and #2 in that the renderer is used to query for the root\n        // node and the nonce value needs to be available when the renderer is created.\n        return getDocument().body?.querySelector('[ngCspNonce]')?.getAttribute('ngCspNonce') || null;\n    },\n});\n/**\n * Internal token to collect all SSR-related features enabled for this application.\n *\n * Note: the token is in `core` to let other packages register features (the `core`\n * package is imported in other packages).\n */\nconst ENABLED_SSR_FEATURES = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'ENABLED_SSR_FEATURES' : '', {\n    providedIn: 'root',\n    factory: () => new Set(),\n});\n\n/**\n * Create a `StateKey<T>` that can be used to store value of type T with `TransferState`.\n *\n * Example:\n *\n * ```\n * const COUNTER_KEY = makeStateKey<number>('counter');\n * let value = 10;\n *\n * transferState.set(COUNTER_KEY, value);\n * ```\n *\n * @publicApi\n */\nfunction makeStateKey(key) {\n    return key;\n}\nfunction initTransferState() {\n    const transferState = new TransferState();\n    if (inject(PLATFORM_ID) === 'browser') {\n        transferState.store = retrieveTransferredState(getDocument(), inject(APP_ID));\n    }\n    return transferState;\n}\n/**\n * A key value store that is transferred from the application on the server side to the application\n * on the client side.\n *\n * The `TransferState` is available as an injectable token.\n * On the client, just inject this token using DI and use it, it will be lazily initialized.\n * On the server it's already included if `renderApplication` function is used. Otherwise, import\n * the `ServerTransferStateModule` module to make the `TransferState` available.\n *\n * The values in the store are serialized/deserialized using JSON.stringify/JSON.parse. So only\n * boolean, number, string, null and non-class objects will be serialized and deserialized in a\n * non-lossy manner.\n *\n * @publicApi\n */\nclass TransferState {\n    constructor() {\n        /** @internal */\n        this.store = {};\n        this.onSerializeCallbacks = {};\n    }\n    /** @nocollapse */\n    static { this.ɵprov = \n    /** @pureOrBreakMyCode */ ɵɵdefineInjectable({\n        token: TransferState,\n        providedIn: 'root',\n        factory: initTransferState,\n    }); }\n    /**\n     * Get the value corresponding to a key. Return `defaultValue` if key is not found.\n     */\n    get(key, defaultValue) {\n        return this.store[key] !== undefined ? this.store[key] : defaultValue;\n    }\n    /**\n     * Set the value corresponding to a key.\n     */\n    set(key, value) {\n        this.store[key] = value;\n    }\n    /**\n     * Remove a key from the store.\n     */\n    remove(key) {\n        delete this.store[key];\n    }\n    /**\n     * Test whether a key exists in the store.\n     */\n    hasKey(key) {\n        return this.store.hasOwnProperty(key);\n    }\n    /**\n     * Indicates whether the state is empty.\n     */\n    get isEmpty() {\n        return Object.keys(this.store).length === 0;\n    }\n    /**\n     * Register a callback to provide the value for a key when `toJson` is called.\n     */\n    onSerialize(key, callback) {\n        this.onSerializeCallbacks[key] = callback;\n    }\n    /**\n     * Serialize the current state of the store to JSON.\n     */\n    toJson() {\n        // Call the onSerialize callbacks and put those values into the store.\n        for (const key in this.onSerializeCallbacks) {\n            if (this.onSerializeCallbacks.hasOwnProperty(key)) {\n                try {\n                    this.store[key] = this.onSerializeCallbacks[key]();\n                }\n                catch (e) {\n                    console.warn('Exception in onSerialize callback: ', e);\n                }\n            }\n        }\n        // Escape script tag to avoid break out of <script> tag in serialized output.\n        // Encoding of `<` is the same behaviour as G3 script_builders.\n        return JSON.stringify(this.store).replace(/</g, '\\\\u003C');\n    }\n}\nfunction retrieveTransferredState(doc, appId) {\n    // Locate the script tag with the JSON data transferred from the server.\n    // The id of the script tag is set to the Angular appId + 'state'.\n    const script = doc.getElementById(appId + '-state');\n    if (script?.textContent) {\n        try {\n            // Avoid using any here as it triggers lint errors in google3 (any is not allowed).\n            // Decoding of `<` is done of the box by browsers and node.js, same behaviour as G3\n            // script_builders.\n            return JSON.parse(script.textContent);\n        }\n        catch (e) {\n            console.warn('Exception while restoring TransferState for app ' + appId, e);\n        }\n    }\n    return {};\n}\n\n/** Encodes that the node lookup should start from the host node of this component. */\nconst REFERENCE_NODE_HOST = 'h';\n/** Encodes that the node lookup should start from the document body node. */\nconst REFERENCE_NODE_BODY = 'b';\n/**\n * Describes navigation steps that the runtime logic need to perform,\n * starting from a given (known) element.\n */\nvar NodeNavigationStep;\n(function (NodeNavigationStep) {\n    NodeNavigationStep[\"FirstChild\"] = \"f\";\n    NodeNavigationStep[\"NextSibling\"] = \"n\";\n})(NodeNavigationStep || (NodeNavigationStep = {}));\n/**\n * Keys within serialized view data structure to represent various\n * parts. See the `SerializedView` interface below for additional information.\n */\nconst ELEMENT_CONTAINERS = 'e';\nconst TEMPLATES = 't';\nconst CONTAINERS = 'c';\nconst MULTIPLIER = 'x';\nconst NUM_ROOT_NODES = 'r';\nconst TEMPLATE_ID = 'i'; // as it's also an \"id\"\nconst NODES = 'n';\nconst DISCONNECTED_NODES = 'd';\n\n/**\n * The name of the key used in the TransferState collection,\n * where hydration information is located.\n */\nconst TRANSFER_STATE_TOKEN_ID = '__ɵnghData__';\n/**\n * Lookup key used to reference DOM hydration data (ngh) in `TransferState`.\n */\nconst NGH_DATA_KEY = makeStateKey(TRANSFER_STATE_TOKEN_ID);\n/**\n * The name of the attribute that would be added to host component\n * nodes and contain a reference to a particular slot in transferred\n * state that contains the necessary hydration info for this component.\n */\nconst NGH_ATTR_NAME = 'ngh';\n/**\n * Marker used in a comment node to ensure hydration content integrity\n */\nconst SSR_CONTENT_INTEGRITY_MARKER = 'nghm';\n/**\n * Reference to a function that reads `ngh` attribute value from a given RNode\n * and retrieves hydration information from the TransferState using that value\n * as an index. Returns `null` by default, when hydration is not enabled.\n *\n * @param rNode Component's host element.\n * @param injector Injector that this component has access to.\n * @param isRootView Specifies whether we trying to read hydration info for the root view.\n */\nlet _retrieveHydrationInfoImpl = (rNode, injector, isRootView) => null;\nfunction retrieveHydrationInfoImpl(rNode, injector, isRootView = false) {\n    let nghAttrValue = rNode.getAttribute(NGH_ATTR_NAME);\n    if (nghAttrValue == null)\n        return null;\n    // For cases when a root component also acts as an anchor node for a ViewContainerRef\n    // (for example, when ViewContainerRef is injected in a root component), there is a need\n    // to serialize information about the component itself, as well as an LContainer that\n    // represents this ViewContainerRef. Effectively, we need to serialize 2 pieces of info:\n    // (1) hydration info for the root component itself and (2) hydration info for the\n    // ViewContainerRef instance (an LContainer). Each piece of information is included into\n    // the hydration data (in the TransferState object) separately, thus we end up with 2 ids.\n    // Since we only have 1 root element, we encode both bits of info into a single string:\n    // ids are separated by the `|` char (e.g. `10|25`, where `10` is the ngh for a component view\n    // and 25 is the `ngh` for a root view which holds LContainer).\n    const [componentViewNgh, rootViewNgh] = nghAttrValue.split('|');\n    nghAttrValue = isRootView ? rootViewNgh : componentViewNgh;\n    if (!nghAttrValue)\n        return null;\n    // We've read one of the ngh ids, keep the remaining one, so that\n    // we can set it back on the DOM element.\n    const remainingNgh = isRootView ? componentViewNgh : (rootViewNgh ? `|${rootViewNgh}` : '');\n    let data = {};\n    // An element might have an empty `ngh` attribute value (e.g. `<comp ngh=\"\" />`),\n    // which means that no special annotations are required. Do not attempt to read\n    // from the TransferState in this case.\n    if (nghAttrValue !== '') {\n        const transferState = injector.get(TransferState, null, { optional: true });\n        if (transferState !== null) {\n            const nghData = transferState.get(NGH_DATA_KEY, []);\n            // The nghAttrValue is always a number referencing an index\n            // in the hydration TransferState data.\n            data = nghData[Number(nghAttrValue)];\n            // If the `ngh` attribute exists and has a non-empty value,\n            // the hydration info *must* be present in the TransferState.\n            // If there is no data for some reasons, this is an error.\n            ngDevMode && assertDefined(data, 'Unable to retrieve hydration info from the TransferState.');\n        }\n    }\n    const dehydratedView = {\n        data,\n        firstChild: rNode.firstChild ?? null,\n    };\n    if (isRootView) {\n        // If there is hydration info present for the root view, it means that there was\n        // a ViewContainerRef injected in the root component. The root component host element\n        // acted as an anchor node in this scenario. As a result, the DOM nodes that represent\n        // embedded views in this ViewContainerRef are located as siblings to the host node,\n        // i.e. `<app-root /><#VIEW1><#VIEW2>...<!--container-->`. In this case, the current\n        // node becomes the first child of this root view and the next sibling is the first\n        // element in the DOM segment.\n        dehydratedView.firstChild = rNode;\n        // We use `0` here, since this is the slot (right after the HEADER_OFFSET)\n        // where a component LView or an LContainer is located in a root LView.\n        setSegmentHead(dehydratedView, 0, rNode.nextSibling);\n    }\n    if (remainingNgh) {\n        // If we have only used one of the ngh ids, store the remaining one\n        // back on this RNode.\n        rNode.setAttribute(NGH_ATTR_NAME, remainingNgh);\n    }\n    else {\n        // The `ngh` attribute is cleared from the DOM node now\n        // that the data has been retrieved for all indices.\n        rNode.removeAttribute(NGH_ATTR_NAME);\n    }\n    // Note: don't check whether this node was claimed for hydration,\n    // because this node might've been previously claimed while processing\n    // template instructions.\n    ngDevMode && markRNodeAsClaimedByHydration(rNode, /* checkIfAlreadyClaimed */ false);\n    ngDevMode && ngDevMode.hydratedComponents++;\n    return dehydratedView;\n}\n/**\n * Sets the implementation for the `retrieveHydrationInfo` function.\n */\nfunction enableRetrieveHydrationInfoImpl() {\n    _retrieveHydrationInfoImpl = retrieveHydrationInfoImpl;\n}\n/**\n * Retrieves hydration info by reading the value from the `ngh` attribute\n * and accessing a corresponding slot in TransferState storage.\n */\nfunction retrieveHydrationInfo(rNode, injector, isRootView = false) {\n    return _retrieveHydrationInfoImpl(rNode, injector, isRootView);\n}\n/**\n * Retrieves the necessary object from a given ViewRef to serialize:\n *  - an LView for component views\n *  - an LContainer for cases when component acts as a ViewContainerRef anchor\n *  - `null` in case of an embedded view\n */\nfunction getLNodeForHydration(viewRef) {\n    // Reading an internal field from `ViewRef` instance.\n    let lView = viewRef._lView;\n    const tView = lView[TVIEW];\n    // A registered ViewRef might represent an instance of an\n    // embedded view, in which case we do not need to annotate it.\n    if (tView.type === 2 /* TViewType.Embedded */) {\n        return null;\n    }\n    // Check if it's a root view and if so, retrieve component's\n    // LView from the first slot after the header.\n    if (isRootView(lView)) {\n        lView = lView[HEADER_OFFSET];\n    }\n    return lView;\n}\nfunction getTextNodeContent(node) {\n    return node.textContent?.replace(/\\s/gm, '');\n}\n/**\n * Restores text nodes and separators into the DOM that were lost during SSR\n * serialization. The hydration process replaces empty text nodes and text\n * nodes that are immediately adjacent to other text nodes with comment nodes\n * that this method filters on to restore those missing nodes that the\n * hydration process is expecting to be present.\n *\n * @param node The app's root HTML Element\n */\nfunction processTextNodeMarkersBeforeHydration(node) {\n    const doc = getDocument();\n    const commentNodesIterator = doc.createNodeIterator(node, NodeFilter.SHOW_COMMENT, {\n        acceptNode(node) {\n            const content = getTextNodeContent(node);\n            const isTextNodeMarker = content === \"ngetn\" /* TextNodeMarker.EmptyNode */ || content === \"ngtns\" /* TextNodeMarker.Separator */;\n            return isTextNodeMarker ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_REJECT;\n        }\n    });\n    let currentNode;\n    // We cannot modify the DOM while using the commentIterator,\n    // because it throws off the iterator state.\n    // So we collect all marker nodes first and then follow up with\n    // applying the changes to the DOM: either inserting an empty node\n    // or just removing the marker if it was used as a separator.\n    const nodes = [];\n    while (currentNode = commentNodesIterator.nextNode()) {\n        nodes.push(currentNode);\n    }\n    for (const node of nodes) {\n        if (node.textContent === \"ngetn\" /* TextNodeMarker.EmptyNode */) {\n            node.replaceWith(doc.createTextNode(''));\n        }\n        else {\n            node.remove();\n        }\n    }\n}\n/**\n * Marks a node as \"claimed\" by hydration process.\n * This is needed to make assessments in tests whether\n * the hydration process handled all nodes.\n */\nfunction markRNodeAsClaimedByHydration(node, checkIfAlreadyClaimed = true) {\n    if (!ngDevMode) {\n        throw new Error('Calling `markRNodeAsClaimedByHydration` in prod mode ' +\n            'is not supported and likely a mistake.');\n    }\n    if (checkIfAlreadyClaimed && isRNodeClaimedForHydration(node)) {\n        throw new Error('Trying to claim a node, which was claimed already.');\n    }\n    node.__claimed = true;\n    ngDevMode.hydratedNodes++;\n}\nfunction isRNodeClaimedForHydration(node) {\n    return !!node.__claimed;\n}\nfunction setSegmentHead(hydrationInfo, index, node) {\n    hydrationInfo.segmentHeads ??= {};\n    hydrationInfo.segmentHeads[index] = node;\n}\nfunction getSegmentHead(hydrationInfo, index) {\n    return hydrationInfo.segmentHeads?.[index] ?? null;\n}\n/**\n * Returns the size of an <ng-container>, using either the information\n * serialized in `ELEMENT_CONTAINERS` (element container size) or by\n * computing the sum of root nodes in all dehydrated views in a given\n * container (in case this `<ng-container>` was also used as a view\n * container host node, e.g. <ng-container *ngIf>).\n */\nfunction getNgContainerSize(hydrationInfo, index) {\n    const data = hydrationInfo.data;\n    let size = data[ELEMENT_CONTAINERS]?.[index] ?? null;\n    // If there is no serialized information available in the `ELEMENT_CONTAINERS` slot,\n    // check if we have info about view containers at this location (e.g.\n    // `<ng-container *ngIf>`) and use container size as a number of root nodes in this\n    // element container.\n    if (size === null && data[CONTAINERS]?.[index]) {\n        size = calcSerializedContainerSize(hydrationInfo, index);\n    }\n    return size;\n}\nfunction getSerializedContainerViews(hydrationInfo, index) {\n    return hydrationInfo.data[CONTAINERS]?.[index] ?? null;\n}\n/**\n * Computes the size of a serialized container (the number of root nodes)\n * by calculating the sum of root nodes in all dehydrated views in this container.\n */\nfunction calcSerializedContainerSize(hydrationInfo, index) {\n    const views = getSerializedContainerViews(hydrationInfo, index) ?? [];\n    let numNodes = 0;\n    for (let view of views) {\n        numNodes += view[NUM_ROOT_NODES] * (view[MULTIPLIER] ?? 1);\n    }\n    return numNodes;\n}\n/**\n * Checks whether a node is annotated as \"disconnected\", i.e. not present\n * in the DOM at serialization time. We should not attempt hydration for\n * such nodes and instead, use a regular \"creation mode\".\n */\nfunction isDisconnectedNode$1(hydrationInfo, index) {\n    // Check if we are processing disconnected info for the first time.\n    if (typeof hydrationInfo.disconnectedNodes === 'undefined') {\n        const nodeIds = hydrationInfo.data[DISCONNECTED_NODES];\n        hydrationInfo.disconnectedNodes = nodeIds ? (new Set(nodeIds)) : null;\n    }\n    return !!hydrationInfo.disconnectedNodes?.has(index);\n}\n\n/**\n * Represents a component created by a `ComponentFactory`.\n * Provides access to the component instance and related objects,\n * and provides the means of destroying the instance.\n *\n * @publicApi\n */\nclass ComponentRef$1 {\n}\n/**\n * Base class for a factory that can create a component dynamically.\n * Instantiate a factory for a given type of component with `resolveComponentFactory()`.\n * Use the resulting `ComponentFactory.create()` method to create a component of that type.\n *\n * @see [Dynamic Components](guide/dynamic-component-loader)\n *\n * @publicApi\n *\n * @deprecated Angular no longer requires Component factories. Please use other APIs where\n *     Component class can be used directly.\n */\nclass ComponentFactory$1 {\n}\n\nfunction noComponentFactoryError(component) {\n    const error = Error(`No component factory found for ${stringify(component)}.`);\n    error[ERROR_COMPONENT] = component;\n    return error;\n}\nconst ERROR_COMPONENT = 'ngComponent';\nfunction getComponent$1(error) {\n    return error[ERROR_COMPONENT];\n}\nclass _NullComponentFactoryResolver {\n    resolveComponentFactory(component) {\n        throw noComponentFactoryError(component);\n    }\n}\n/**\n * A simple registry that maps `Components` to generated `ComponentFactory` classes\n * that can be used to create instances of components.\n * Use to obtain the factory for a given component type,\n * then use the factory's `create()` method to create a component of that type.\n *\n * Note: since v13, dynamic component creation via\n * [`ViewContainerRef.createComponent`](api/core/ViewContainerRef#createComponent)\n * does **not** require resolving component factory: component class can be used directly.\n *\n * @publicApi\n *\n * @deprecated Angular no longer requires Component factories. Please use other APIs where\n *     Component class can be used directly.\n */\nclass ComponentFactoryResolver$1 {\n    static { this.NULL = ( /* @__PURE__ */new _NullComponentFactoryResolver()); }\n}\n\n/**\n * Creates an ElementRef from the most recent node.\n *\n * @returns The ElementRef instance to use\n */\nfunction injectElementRef() {\n    return createElementRef(getCurrentTNode(), getLView());\n}\n/**\n * Creates an ElementRef given a node.\n *\n * @param tNode The node for which you'd like an ElementRef\n * @param lView The view to which the node belongs\n * @returns The ElementRef instance to use\n */\nfunction createElementRef(tNode, lView) {\n    return new ElementRef(getNativeByTNode(tNode, lView));\n}\n/**\n * A wrapper around a native element inside of a View.\n *\n * An `ElementRef` is backed by a render-specific element. In the browser, this is usually a DOM\n * element.\n *\n * @security Permitting direct access to the DOM can make your application more vulnerable to\n * XSS attacks. Carefully review any use of `ElementRef` in your code. For more detail, see the\n * [Security Guide](https://g.co/ng/security).\n *\n * @publicApi\n */\n// Note: We don't expose things like `Injector`, `ViewContainer`, ... here,\n// i.e. users have to ask for what they need. With that, we can build better analysis tools\n// and could do better codegen in the future.\nclass ElementRef {\n    constructor(nativeElement) {\n        this.nativeElement = nativeElement;\n    }\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ELEMENT_ID__ = injectElementRef; }\n}\n/**\n * Unwraps `ElementRef` and return the `nativeElement`.\n *\n * @param value value to unwrap\n * @returns `nativeElement` if `ElementRef` otherwise returns value as is.\n */\nfunction unwrapElementRef(value) {\n    return value instanceof ElementRef ? value.nativeElement : value;\n}\n\n/**\n * Creates and initializes a custom renderer that implements the `Renderer2` base class.\n *\n * @publicApi\n */\nclass RendererFactory2 {\n}\n/**\n * Extend this base class to implement custom rendering. By default, Angular\n * renders a template into DOM. You can use custom rendering to intercept\n * rendering calls, or to render to something other than DOM.\n *\n * Create your custom renderer using `RendererFactory2`.\n *\n * Use a custom renderer to bypass Angular's templating and\n * make custom UI changes that can't be expressed declaratively.\n * For example if you need to set a property or an attribute whose name is\n * not statically known, use the `setProperty()` or\n * `setAttribute()` method.\n *\n * @publicApi\n */\nclass Renderer2 {\n    constructor() {\n        /**\n         * If null or undefined, the view engine won't call it.\n         * This is used as a performance optimization for production mode.\n         */\n        this.destroyNode = null;\n    }\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ELEMENT_ID__ = () => injectRenderer2(); }\n}\n/** Injects a Renderer2 for the current component. */\nfunction injectRenderer2() {\n    // We need the Renderer to be based on the component that it's being injected into, however since\n    // DI happens before we've entered its view, `getLView` will return the parent view instead.\n    const lView = getLView();\n    const tNode = getCurrentTNode();\n    const nodeAtIndex = getComponentLViewByIndex(tNode.index, lView);\n    return (isLView(nodeAtIndex) ? nodeAtIndex : lView)[RENDERER];\n}\n\n/**\n * Sanitizer is used by the views to sanitize potentially dangerous values.\n *\n * @publicApi\n */\nclass Sanitizer {\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({\n        token: Sanitizer,\n        providedIn: 'root',\n        factory: () => null,\n    }); }\n}\n\n/**\n * @description Represents the version of Angular\n *\n * @publicApi\n */\nclass Version {\n    constructor(full) {\n        this.full = full;\n        this.major = full.split('.')[0];\n        this.minor = full.split('.')[1];\n        this.patch = full.split('.').slice(2).join('.');\n    }\n}\n/**\n * @publicApi\n */\nconst VERSION = new Version('16.2.12');\n\n// This default value is when checking the hierarchy for a token.\n//\n// It means both:\n// - the token is not provided by the current injector,\n// - only the element injectors should be checked (ie do not check module injectors\n//\n//          mod1\n//         /\n//       el1   mod2\n//         \\  /\n//         el2\n//\n// When requesting el2.injector.get(token), we should check in the following order and return the\n// first found value:\n// - el2.injector.get(token, default)\n// - el1.injector.get(token, NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR) -> do not check the module\n// - mod2.injector.get(token, default)\nconst NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR = {};\n\n/**\n * Runs the given function in the [context](guide/dependency-injection-context) of the given\n * `Injector`.\n *\n * Within the function's stack frame, [`inject`](api/core/inject) can be used to inject dependencies\n * from the given `Injector`. Note that `inject` is only usable synchronously, and cannot be used in\n * any asynchronous callbacks or after any `await` points.\n *\n * @param injector the injector which will satisfy calls to [`inject`](api/core/inject) while `fn`\n *     is executing\n * @param fn the closure to be run in the context of `injector`\n * @returns the return value of the function, if any\n * @publicApi\n */\nfunction runInInjectionContext(injector, fn) {\n    if (injector instanceof R3Injector) {\n        injector.assertNotDestroyed();\n    }\n    let prevInjectorProfilerContext;\n    if (ngDevMode) {\n        prevInjectorProfilerContext = setInjectorProfilerContext({ injector, token: null });\n    }\n    const prevInjector = setCurrentInjector(injector);\n    const previousInjectImplementation = setInjectImplementation(undefined);\n    try {\n        return fn();\n    }\n    finally {\n        setCurrentInjector(prevInjector);\n        ngDevMode && setInjectorProfilerContext(prevInjectorProfilerContext);\n        setInjectImplementation(previousInjectImplementation);\n    }\n}\n/**\n * Asserts that the current stack frame is within an [injection\n * context](guide/dependency-injection-context) and has access to `inject`.\n *\n * @param debugFn a reference to the function making the assertion (used for the error message).\n *\n * @publicApi\n */\nfunction assertInInjectionContext(debugFn) {\n    // Taking a `Function` instead of a string name here prevents the unminified name of the function\n    // from being retained in the bundle regardless of minification.\n    if (!getInjectImplementation() && !getCurrentInjector()) {\n        throw new RuntimeError(-203 /* RuntimeErrorCode.MISSING_INJECTION_CONTEXT */, ngDevMode &&\n            (debugFn.name +\n                '() can only be used within an injection context such as a constructor, a factory function, a field initializer, or a function used with `runInInjectionContext`'));\n    }\n}\n\n/**\n * A mapping of the @angular/core API surface used in generated expressions to the actual symbols.\n *\n * This should be kept up to date with the public exports of @angular/core.\n */\nconst angularCoreDiEnv = {\n    'ɵɵdefineInjectable': ɵɵdefineInjectable,\n    'ɵɵdefineInjector': ɵɵdefineInjector,\n    'ɵɵinject': ɵɵinject,\n    'ɵɵinvalidFactoryDep': ɵɵinvalidFactoryDep,\n    'resolveForwardRef': resolveForwardRef,\n};\n\n/**\n * Compile an Angular injectable according to its `Injectable` metadata, and patch the resulting\n * injectable def (`ɵprov`) onto the injectable type.\n */\nfunction compileInjectable(type, meta) {\n    let ngInjectableDef = null;\n    let ngFactoryDef = null;\n    // if NG_PROV_DEF is already defined on this class then don't overwrite it\n    if (!type.hasOwnProperty(NG_PROV_DEF)) {\n        Object.defineProperty(type, NG_PROV_DEF, {\n            get: () => {\n                if (ngInjectableDef === null) {\n                    const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'injectable', type });\n                    ngInjectableDef = compiler.compileInjectable(angularCoreDiEnv, `ng:///${type.name}/ɵprov.js`, getInjectableMetadata(type, meta));\n                }\n                return ngInjectableDef;\n            },\n        });\n    }\n    // if NG_FACTORY_DEF is already defined on this class then don't overwrite it\n    if (!type.hasOwnProperty(NG_FACTORY_DEF)) {\n        Object.defineProperty(type, NG_FACTORY_DEF, {\n            get: () => {\n                if (ngFactoryDef === null) {\n                    const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'injectable', type });\n                    ngFactoryDef = compiler.compileFactory(angularCoreDiEnv, `ng:///${type.name}/ɵfac.js`, {\n                        name: type.name,\n                        type,\n                        typeArgumentCount: 0,\n                        deps: reflectDependencies(type),\n                        target: compiler.FactoryTarget.Injectable\n                    });\n                }\n                return ngFactoryDef;\n            },\n            // Leave this configurable so that the factories from directives or pipes can take precedence.\n            configurable: true\n        });\n    }\n}\nconst USE_VALUE = getClosureSafeProperty({ provide: String, useValue: getClosureSafeProperty });\nfunction isUseClassProvider(meta) {\n    return meta.useClass !== undefined;\n}\nfunction isUseValueProvider(meta) {\n    return USE_VALUE in meta;\n}\nfunction isUseFactoryProvider(meta) {\n    return meta.useFactory !== undefined;\n}\nfunction isUseExistingProvider(meta) {\n    return meta.useExisting !== undefined;\n}\nfunction getInjectableMetadata(type, srcMeta) {\n    // Allow the compilation of a class with a `@Injectable()` decorator without parameters\n    const meta = srcMeta || { providedIn: null };\n    const compilerMeta = {\n        name: type.name,\n        type: type,\n        typeArgumentCount: 0,\n        providedIn: meta.providedIn,\n    };\n    if ((isUseClassProvider(meta) || isUseFactoryProvider(meta)) && meta.deps !== undefined) {\n        compilerMeta.deps = convertDependencies(meta.deps);\n    }\n    // Check to see if the user explicitly provided a `useXxxx` property.\n    if (isUseClassProvider(meta)) {\n        compilerMeta.useClass = meta.useClass;\n    }\n    else if (isUseValueProvider(meta)) {\n        compilerMeta.useValue = meta.useValue;\n    }\n    else if (isUseFactoryProvider(meta)) {\n        compilerMeta.useFactory = meta.useFactory;\n    }\n    else if (isUseExistingProvider(meta)) {\n        compilerMeta.useExisting = meta.useExisting;\n    }\n    return compilerMeta;\n}\n\n/**\n * Injectable decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Injectable = makeDecorator('Injectable', undefined, undefined, undefined, (type, meta) => compileInjectable(type, meta));\n\n/**\n * Create a new `Injector` which is configured using a `defType` of `InjectorType<any>`s.\n */\nfunction createInjector(defType, parent = null, additionalProviders = null, name) {\n    const injector = createInjectorWithoutInjectorInstances(defType, parent, additionalProviders, name);\n    injector.resolveInjectorInitializers();\n    return injector;\n}\n/**\n * Creates a new injector without eagerly resolving its injector types. Can be used in places\n * where resolving the injector types immediately can lead to an infinite loop. The injector types\n * should be resolved at a later point by calling `_resolveInjectorDefTypes`.\n */\nfunction createInjectorWithoutInjectorInstances(defType, parent = null, additionalProviders = null, name, scopes = new Set()) {\n    const providers = [\n        additionalProviders || EMPTY_ARRAY,\n        importProvidersFrom(defType),\n    ];\n    name = name || (typeof defType === 'object' ? undefined : stringify(defType));\n    return new R3Injector(providers, parent || getNullInjector(), name || null, scopes);\n}\n\n/**\n * Concrete injectors implement this interface. Injectors are configured\n * with [providers](guide/glossary#provider) that associate\n * dependencies of various types with [injection tokens](guide/glossary#di-token).\n *\n * @see [\"DI Providers\"](guide/dependency-injection-providers).\n * @see {@link StaticProvider}\n *\n * @usageNotes\n *\n *  The following example creates a service injector instance.\n *\n * {@example core/di/ts/provider_spec.ts region='ConstructorProvider'}\n *\n * ### Usage example\n *\n * {@example core/di/ts/injector_spec.ts region='Injector'}\n *\n * `Injector` returns itself when given `Injector` as a token:\n *\n * {@example core/di/ts/injector_spec.ts region='injectInjector'}\n *\n * @publicApi\n */\nclass Injector {\n    static { this.THROW_IF_NOT_FOUND = THROW_IF_NOT_FOUND; }\n    static { this.NULL = ( /* @__PURE__ */new NullInjector()); }\n    static create(options, parent) {\n        if (Array.isArray(options)) {\n            return createInjector({ name: '' }, parent, options, '');\n        }\n        else {\n            const name = options.name ?? '';\n            return createInjector({ name }, options.parent, options.providers, name);\n        }\n    }\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({\n        token: Injector,\n        providedIn: 'any',\n        factory: () => ɵɵinject(INJECTOR),\n    }); }\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ELEMENT_ID__ = -1 /* InjectorMarkers.Injector */; }\n}\n\n/**\n * @module\n * @description\n * The `di` module provides dependency injection container services.\n */\n\n/**\n * This file should not be necessary because node resolution should just default to `./di/index`!\n *\n * However it does not seem to work and it breaks:\n *  - //packages/animations/browser/test:test_web_chromium-local\n *  - //packages/compiler-cli/test:extract_i18n\n *  - //packages/compiler-cli/test:ngc\n *  - //packages/compiler-cli/test:perform_watch\n *  - //packages/compiler-cli/test/diagnostics:check_types\n *  - //packages/compiler-cli/test/transformers:test\n *  - //packages/compiler/test:test\n *  - //tools/public_api_guard:core_api\n *\n * Remove this file once the above is solved or wait until `ngc` is deleted and then it should be\n * safe to delete this file.\n */\n\nconst ERROR_ORIGINAL_ERROR = 'ngOriginalError';\nfunction wrappedError(message, originalError) {\n    const msg = `${message} caused by: ${originalError instanceof Error ? originalError.message : originalError}`;\n    const error = Error(msg);\n    error[ERROR_ORIGINAL_ERROR] = originalError;\n    return error;\n}\nfunction getOriginalError(error) {\n    return error[ERROR_ORIGINAL_ERROR];\n}\n\n/**\n * Provides a hook for centralized exception handling.\n *\n * The default implementation of `ErrorHandler` prints error messages to the `console`. To\n * intercept error handling, write a custom exception handler that replaces this default as\n * appropriate for your app.\n *\n * @usageNotes\n * ### Example\n *\n * ```\n * class MyErrorHandler implements ErrorHandler {\n *   handleError(error) {\n *     // do something with the exception\n *   }\n * }\n *\n * @NgModule({\n *   providers: [{provide: ErrorHandler, useClass: MyErrorHandler}]\n * })\n * class MyModule {}\n * ```\n *\n * @publicApi\n */\nclass ErrorHandler {\n    constructor() {\n        /**\n         * @internal\n         */\n        this._console = console;\n    }\n    handleError(error) {\n        const originalError = this._findOriginalError(error);\n        this._console.error('ERROR', error);\n        if (originalError) {\n            this._console.error('ORIGINAL ERROR', originalError);\n        }\n    }\n    /** @internal */\n    _findOriginalError(error) {\n        let e = error && getOriginalError(error);\n        while (e && getOriginalError(e)) {\n            e = getOriginalError(e);\n        }\n        return e || null;\n    }\n}\n\n/**\n * `DestroyRef` lets you set callbacks to run for any cleanup or destruction behavior.\n * The scope of this destruction depends on where `DestroyRef` is injected. If `DestroyRef`\n * is injected in a component or directive, the callbacks run when that component or\n * directive is destroyed. Otherwise the callbacks run when a corresponding injector is destroyed.\n *\n * @publicApi\n */\nclass DestroyRef {\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ELEMENT_ID__ = injectDestroyRef; }\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ENV_ID__ = (injector) => injector; }\n}\nclass NodeInjectorDestroyRef extends DestroyRef {\n    constructor(_lView) {\n        super();\n        this._lView = _lView;\n    }\n    onDestroy(callback) {\n        storeLViewOnDestroy(this._lView, callback);\n        return () => removeLViewOnDestroy(this._lView, callback);\n    }\n}\nfunction injectDestroyRef() {\n    return new NodeInjectorDestroyRef(getLView());\n}\n\n/// <reference types=\"rxjs\" />\nclass EventEmitter_ extends Subject {\n    constructor(isAsync = false) {\n        super();\n        this.__isAsync = isAsync;\n    }\n    emit(value) {\n        super.next(value);\n    }\n    subscribe(observerOrNext, error, complete) {\n        let nextFn = observerOrNext;\n        let errorFn = error || (() => null);\n        let completeFn = complete;\n        if (observerOrNext && typeof observerOrNext === 'object') {\n            const observer = observerOrNext;\n            nextFn = observer.next?.bind(observer);\n            errorFn = observer.error?.bind(observer);\n            completeFn = observer.complete?.bind(observer);\n        }\n        if (this.__isAsync) {\n            errorFn = _wrapInTimeout(errorFn);\n            if (nextFn) {\n                nextFn = _wrapInTimeout(nextFn);\n            }\n            if (completeFn) {\n                completeFn = _wrapInTimeout(completeFn);\n            }\n        }\n        const sink = super.subscribe({ next: nextFn, error: errorFn, complete: completeFn });\n        if (observerOrNext instanceof Subscription) {\n            observerOrNext.add(sink);\n        }\n        return sink;\n    }\n}\nfunction _wrapInTimeout(fn) {\n    return (value) => {\n        setTimeout(fn, undefined, value);\n    };\n}\n/**\n * @publicApi\n */\nconst EventEmitter = EventEmitter_;\n\nfunction noop(...args) {\n    // Do nothing.\n}\n\nfunction getNativeRequestAnimationFrame() {\n    // Note: the `getNativeRequestAnimationFrame` is used in the `NgZone` class, but we cannot use the\n    // `inject` function. The `NgZone` instance may be created manually, and thus the injection\n    // context will be unavailable. This might be enough to check whether `requestAnimationFrame` is\n    // available because otherwise, we'll fall back to `setTimeout`.\n    const isBrowser = typeof _global['requestAnimationFrame'] === 'function';\n    // Note: `requestAnimationFrame` is unavailable when the code runs in the Node.js environment. We\n    // use `setTimeout` because no changes are required other than checking if the current platform is\n    // the browser. `setTimeout` is a well-established API that is available in both environments.\n    // `requestAnimationFrame` is used in the browser to coalesce event tasks since event tasks are\n    // usually executed within the same rendering frame (but this is more implementation details of\n    // browsers).\n    let nativeRequestAnimationFrame = _global[isBrowser ? 'requestAnimationFrame' : 'setTimeout'];\n    let nativeCancelAnimationFrame = _global[isBrowser ? 'cancelAnimationFrame' : 'clearTimeout'];\n    if (typeof Zone !== 'undefined' && nativeRequestAnimationFrame && nativeCancelAnimationFrame) {\n        // Note: zone.js sets original implementations on patched APIs behind the\n        // `__zone_symbol__OriginalDelegate` key (see `attachOriginToPatched`). Given the following\n        // example: `window.requestAnimationFrame.__zone_symbol__OriginalDelegate`; this would return an\n        // unpatched implementation of the `requestAnimationFrame`, which isn't intercepted by the\n        // Angular zone. We use the unpatched implementation to avoid another change detection when\n        // coalescing tasks.\n        const unpatchedRequestAnimationFrame = nativeRequestAnimationFrame[Zone.__symbol__('OriginalDelegate')];\n        if (unpatchedRequestAnimationFrame) {\n            nativeRequestAnimationFrame = unpatchedRequestAnimationFrame;\n        }\n        const unpatchedCancelAnimationFrame = nativeCancelAnimationFrame[Zone.__symbol__('OriginalDelegate')];\n        if (unpatchedCancelAnimationFrame) {\n            nativeCancelAnimationFrame = unpatchedCancelAnimationFrame;\n        }\n    }\n    return { nativeRequestAnimationFrame, nativeCancelAnimationFrame };\n}\n\nclass AsyncStackTaggingZoneSpec {\n    constructor(namePrefix, consoleAsyncStackTaggingImpl = console) {\n        this.name = 'asyncStackTagging for ' + namePrefix;\n        this.createTask = consoleAsyncStackTaggingImpl?.createTask ?? (() => null);\n    }\n    onScheduleTask(delegate, _current, target, task) {\n        task.consoleTask = this.createTask(`Zone - ${task.source || task.type}`);\n        return delegate.scheduleTask(target, task);\n    }\n    onInvokeTask(delegate, _currentZone, targetZone, task, applyThis, applyArgs) {\n        let ret;\n        if (task.consoleTask) {\n            ret = task.consoleTask.run(() => delegate.invokeTask(targetZone, task, applyThis, applyArgs));\n        }\n        else {\n            ret = delegate.invokeTask(targetZone, task, applyThis, applyArgs);\n        }\n        return ret;\n    }\n}\n\n/**\n * An injectable service for executing work inside or outside of the Angular zone.\n *\n * The most common use of this service is to optimize performance when starting a work consisting of\n * one or more asynchronous tasks that don't require UI updates or error handling to be handled by\n * Angular. Such tasks can be kicked off via {@link #runOutsideAngular} and if needed, these tasks\n * can reenter the Angular zone via {@link #run}.\n *\n * <!-- TODO: add/fix links to:\n *   - docs explaining zones and the use of zones in Angular and change-detection\n *   - link to runOutsideAngular/run (throughout this file!)\n *   -->\n *\n * @usageNotes\n * ### Example\n *\n * ```\n * import {Component, NgZone} from '@angular/core';\n * import {NgIf} from '@angular/common';\n *\n * @Component({\n *   selector: 'ng-zone-demo',\n *   template: `\n *     <h2>Demo: NgZone</h2>\n *\n *     <p>Progress: {{progress}}%</p>\n *     <p *ngIf=\"progress >= 100\">Done processing {{label}} of Angular zone!</p>\n *\n *     <button (click)=\"processWithinAngularZone()\">Process within Angular zone</button>\n *     <button (click)=\"processOutsideOfAngularZone()\">Process outside of Angular zone</button>\n *   `,\n * })\n * export class NgZoneDemo {\n *   progress: number = 0;\n *   label: string;\n *\n *   constructor(private _ngZone: NgZone) {}\n *\n *   // Loop inside the Angular zone\n *   // so the UI DOES refresh after each setTimeout cycle\n *   processWithinAngularZone() {\n *     this.label = 'inside';\n *     this.progress = 0;\n *     this._increaseProgress(() => console.log('Inside Done!'));\n *   }\n *\n *   // Loop outside of the Angular zone\n *   // so the UI DOES NOT refresh after each setTimeout cycle\n *   processOutsideOfAngularZone() {\n *     this.label = 'outside';\n *     this.progress = 0;\n *     this._ngZone.runOutsideAngular(() => {\n *       this._increaseProgress(() => {\n *         // reenter the Angular zone and display done\n *         this._ngZone.run(() => { console.log('Outside Done!'); });\n *       });\n *     });\n *   }\n *\n *   _increaseProgress(doneCallback: () => void) {\n *     this.progress += 1;\n *     console.log(`Current progress: ${this.progress}%`);\n *\n *     if (this.progress < 100) {\n *       window.setTimeout(() => this._increaseProgress(doneCallback), 10);\n *     } else {\n *       doneCallback();\n *     }\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nclass NgZone {\n    constructor({ enableLongStackTrace = false, shouldCoalesceEventChangeDetection = false, shouldCoalesceRunChangeDetection = false }) {\n        this.hasPendingMacrotasks = false;\n        this.hasPendingMicrotasks = false;\n        /**\n         * Whether there are no outstanding microtasks or macrotasks.\n         */\n        this.isStable = true;\n        /**\n         * Notifies when code enters Angular Zone. This gets fired first on VM Turn.\n         */\n        this.onUnstable = new EventEmitter(false);\n        /**\n         * Notifies when there is no more microtasks enqueued in the current VM Turn.\n         * This is a hint for Angular to do change detection, which may enqueue more microtasks.\n         * For this reason this event can fire multiple times per VM Turn.\n         */\n        this.onMicrotaskEmpty = new EventEmitter(false);\n        /**\n         * Notifies when the last `onMicrotaskEmpty` has run and there are no more microtasks, which\n         * implies we are about to relinquish VM turn.\n         * This event gets called just once.\n         */\n        this.onStable = new EventEmitter(false);\n        /**\n         * Notifies that an error has been delivered.\n         */\n        this.onError = new EventEmitter(false);\n        if (typeof Zone == 'undefined') {\n            throw new RuntimeError(908 /* RuntimeErrorCode.MISSING_ZONEJS */, ngDevMode && `In this configuration Angular requires Zone.js`);\n        }\n        Zone.assertZonePatched();\n        const self = this;\n        self._nesting = 0;\n        self._outer = self._inner = Zone.current;\n        // AsyncStackTaggingZoneSpec provides `linked stack traces` to show\n        // where the async operation is scheduled. For more details, refer\n        // to this article, https://developer.chrome.com/blog/devtools-better-angular-debugging/\n        // And we only import this AsyncStackTaggingZoneSpec in development mode,\n        // in the production mode, the AsyncStackTaggingZoneSpec will be tree shaken away.\n        if (ngDevMode) {\n            self._inner = self._inner.fork(new AsyncStackTaggingZoneSpec('Angular'));\n        }\n        if (Zone['TaskTrackingZoneSpec']) {\n            self._inner = self._inner.fork(new Zone['TaskTrackingZoneSpec']);\n        }\n        if (enableLongStackTrace && Zone['longStackTraceZoneSpec']) {\n            self._inner = self._inner.fork(Zone['longStackTraceZoneSpec']);\n        }\n        // if shouldCoalesceRunChangeDetection is true, all tasks including event tasks will be\n        // coalesced, so shouldCoalesceEventChangeDetection option is not necessary and can be skipped.\n        self.shouldCoalesceEventChangeDetection =\n            !shouldCoalesceRunChangeDetection && shouldCoalesceEventChangeDetection;\n        self.shouldCoalesceRunChangeDetection = shouldCoalesceRunChangeDetection;\n        self.lastRequestAnimationFrameId = -1;\n        self.nativeRequestAnimationFrame = getNativeRequestAnimationFrame().nativeRequestAnimationFrame;\n        forkInnerZoneWithAngularBehavior(self);\n    }\n    /**\n      This method checks whether the method call happens within an Angular Zone instance.\n    */\n    static isInAngularZone() {\n        // Zone needs to be checked, because this method might be called even when NoopNgZone is used.\n        return typeof Zone !== 'undefined' && Zone.current.get('isAngularZone') === true;\n    }\n    /**\n      Assures that the method is called within the Angular Zone, otherwise throws an error.\n    */\n    static assertInAngularZone() {\n        if (!NgZone.isInAngularZone()) {\n            throw new RuntimeError(909 /* RuntimeErrorCode.UNEXPECTED_ZONE_STATE */, ngDevMode && 'Expected to be in Angular Zone, but it is not!');\n        }\n    }\n    /**\n      Assures that the method is called outside of the Angular Zone, otherwise throws an error.\n    */\n    static assertNotInAngularZone() {\n        if (NgZone.isInAngularZone()) {\n            throw new RuntimeError(909 /* RuntimeErrorCode.UNEXPECTED_ZONE_STATE */, ngDevMode && 'Expected to not be in Angular Zone, but it is!');\n        }\n    }\n    /**\n     * Executes the `fn` function synchronously within the Angular zone and returns value returned by\n     * the function.\n     *\n     * Running functions via `run` allows you to reenter Angular zone from a task that was executed\n     * outside of the Angular zone (typically started via {@link #runOutsideAngular}).\n     *\n     * Any future tasks or microtasks scheduled from within this function will continue executing from\n     * within the Angular zone.\n     *\n     * If a synchronous error happens it will be rethrown and not reported via `onError`.\n     */\n    run(fn, applyThis, applyArgs) {\n        return this._inner.run(fn, applyThis, applyArgs);\n    }\n    /**\n     * Executes the `fn` function synchronously within the Angular zone as a task and returns value\n     * returned by the function.\n     *\n     * Running functions via `run` allows you to reenter Angular zone from a task that was executed\n     * outside of the Angular zone (typically started via {@link #runOutsideAngular}).\n     *\n     * Any future tasks or microtasks scheduled from within this function will continue executing from\n     * within the Angular zone.\n     *\n     * If a synchronous error happens it will be rethrown and not reported via `onError`.\n     */\n    runTask(fn, applyThis, applyArgs, name) {\n        const zone = this._inner;\n        const task = zone.scheduleEventTask('NgZoneEvent: ' + name, fn, EMPTY_PAYLOAD, noop, noop);\n        try {\n            return zone.runTask(task, applyThis, applyArgs);\n        }\n        finally {\n            zone.cancelTask(task);\n        }\n    }\n    /**\n     * Same as `run`, except that synchronous errors are caught and forwarded via `onError` and not\n     * rethrown.\n     */\n    runGuarded(fn, applyThis, applyArgs) {\n        return this._inner.runGuarded(fn, applyThis, applyArgs);\n    }\n    /**\n     * Executes the `fn` function synchronously in Angular's parent zone and returns value returned by\n     * the function.\n     *\n     * Running functions via {@link #runOutsideAngular} allows you to escape Angular's zone and do\n     * work that\n     * doesn't trigger Angular change-detection or is subject to Angular's error handling.\n     *\n     * Any future tasks or microtasks scheduled from within this function will continue executing from\n     * outside of the Angular zone.\n     *\n     * Use {@link #run} to reenter the Angular zone and do work that updates the application model.\n     */\n    runOutsideAngular(fn) {\n        return this._outer.run(fn);\n    }\n}\nconst EMPTY_PAYLOAD = {};\nfunction checkStable(zone) {\n    // TODO: @JiaLiPassion, should check zone.isCheckStableRunning to prevent\n    // re-entry. The case is:\n    //\n    // @Component({...})\n    // export class AppComponent {\n    // constructor(private ngZone: NgZone) {\n    //   this.ngZone.onStable.subscribe(() => {\n    //     this.ngZone.run(() => console.log('stable'););\n    //   });\n    // }\n    //\n    // The onStable subscriber run another function inside ngZone\n    // which causes `checkStable()` re-entry.\n    // But this fix causes some issues in g3, so this fix will be\n    // launched in another PR.\n    if (zone._nesting == 0 && !zone.hasPendingMicrotasks && !zone.isStable) {\n        try {\n            zone._nesting++;\n            zone.onMicrotaskEmpty.emit(null);\n        }\n        finally {\n            zone._nesting--;\n            if (!zone.hasPendingMicrotasks) {\n                try {\n                    zone.runOutsideAngular(() => zone.onStable.emit(null));\n                }\n                finally {\n                    zone.isStable = true;\n                }\n            }\n        }\n    }\n}\nfunction delayChangeDetectionForEvents(zone) {\n    /**\n     * We also need to check _nesting here\n     * Consider the following case with shouldCoalesceRunChangeDetection = true\n     *\n     * ngZone.run(() => {});\n     * ngZone.run(() => {});\n     *\n     * We want the two `ngZone.run()` only trigger one change detection\n     * when shouldCoalesceRunChangeDetection is true.\n     * And because in this case, change detection run in async way(requestAnimationFrame),\n     * so we also need to check the _nesting here to prevent multiple\n     * change detections.\n     */\n    if (zone.isCheckStableRunning || zone.lastRequestAnimationFrameId !== -1) {\n        return;\n    }\n    zone.lastRequestAnimationFrameId = zone.nativeRequestAnimationFrame.call(_global, () => {\n        // This is a work around for https://github.com/angular/angular/issues/36839.\n        // The core issue is that when event coalescing is enabled it is possible for microtasks\n        // to get flushed too early (As is the case with `Promise.then`) between the\n        // coalescing eventTasks.\n        //\n        // To workaround this we schedule a \"fake\" eventTask before we process the\n        // coalescing eventTasks. The benefit of this is that the \"fake\" container eventTask\n        //  will prevent the microtasks queue from getting drained in between the coalescing\n        // eventTask execution.\n        if (!zone.fakeTopEventTask) {\n            zone.fakeTopEventTask = Zone.root.scheduleEventTask('fakeTopEventTask', () => {\n                zone.lastRequestAnimationFrameId = -1;\n                updateMicroTaskStatus(zone);\n                zone.isCheckStableRunning = true;\n                checkStable(zone);\n                zone.isCheckStableRunning = false;\n            }, undefined, () => { }, () => { });\n        }\n        zone.fakeTopEventTask.invoke();\n    });\n    updateMicroTaskStatus(zone);\n}\nfunction forkInnerZoneWithAngularBehavior(zone) {\n    const delayChangeDetectionForEventsDelegate = () => {\n        delayChangeDetectionForEvents(zone);\n    };\n    zone._inner = zone._inner.fork({\n        name: 'angular',\n        properties: { 'isAngularZone': true },\n        onInvokeTask: (delegate, current, target, task, applyThis, applyArgs) => {\n            if (shouldBeIgnoredByZone(applyArgs)) {\n                return delegate.invokeTask(target, task, applyThis, applyArgs);\n            }\n            try {\n                onEnter(zone);\n                return delegate.invokeTask(target, task, applyThis, applyArgs);\n            }\n            finally {\n                if ((zone.shouldCoalesceEventChangeDetection && task.type === 'eventTask') ||\n                    zone.shouldCoalesceRunChangeDetection) {\n                    delayChangeDetectionForEventsDelegate();\n                }\n                onLeave(zone);\n            }\n        },\n        onInvoke: (delegate, current, target, callback, applyThis, applyArgs, source) => {\n            try {\n                onEnter(zone);\n                return delegate.invoke(target, callback, applyThis, applyArgs, source);\n            }\n            finally {\n                if (zone.shouldCoalesceRunChangeDetection) {\n                    delayChangeDetectionForEventsDelegate();\n                }\n                onLeave(zone);\n            }\n        },\n        onHasTask: (delegate, current, target, hasTaskState) => {\n            delegate.hasTask(target, hasTaskState);\n            if (current === target) {\n                // We are only interested in hasTask events which originate from our zone\n                // (A child hasTask event is not interesting to us)\n                if (hasTaskState.change == 'microTask') {\n                    zone._hasPendingMicrotasks = hasTaskState.microTask;\n                    updateMicroTaskStatus(zone);\n                    checkStable(zone);\n                }\n                else if (hasTaskState.change == 'macroTask') {\n                    zone.hasPendingMacrotasks = hasTaskState.macroTask;\n                }\n            }\n        },\n        onHandleError: (delegate, current, target, error) => {\n            delegate.handleError(target, error);\n            zone.runOutsideAngular(() => zone.onError.emit(error));\n            return false;\n        }\n    });\n}\nfunction updateMicroTaskStatus(zone) {\n    if (zone._hasPendingMicrotasks ||\n        ((zone.shouldCoalesceEventChangeDetection || zone.shouldCoalesceRunChangeDetection) &&\n            zone.lastRequestAnimationFrameId !== -1)) {\n        zone.hasPendingMicrotasks = true;\n    }\n    else {\n        zone.hasPendingMicrotasks = false;\n    }\n}\nfunction onEnter(zone) {\n    zone._nesting++;\n    if (zone.isStable) {\n        zone.isStable = false;\n        zone.onUnstable.emit(null);\n    }\n}\nfunction onLeave(zone) {\n    zone._nesting--;\n    checkStable(zone);\n}\n/**\n * Provides a noop implementation of `NgZone` which does nothing. This zone requires explicit calls\n * to framework to perform rendering.\n */\nclass NoopNgZone {\n    constructor() {\n        this.hasPendingMicrotasks = false;\n        this.hasPendingMacrotasks = false;\n        this.isStable = true;\n        this.onUnstable = new EventEmitter();\n        this.onMicrotaskEmpty = new EventEmitter();\n        this.onStable = new EventEmitter();\n        this.onError = new EventEmitter();\n    }\n    run(fn, applyThis, applyArgs) {\n        return fn.apply(applyThis, applyArgs);\n    }\n    runGuarded(fn, applyThis, applyArgs) {\n        return fn.apply(applyThis, applyArgs);\n    }\n    runOutsideAngular(fn) {\n        return fn();\n    }\n    runTask(fn, applyThis, applyArgs, name) {\n        return fn.apply(applyThis, applyArgs);\n    }\n}\n/**\n * Token used to drive ApplicationRef.isStable\n *\n * TODO: This should be moved entirely to NgZone (as a breaking change) so it can be tree-shakeable\n * for `NoopNgZone` which is always just an `Observable` of `true`. Additionally, we should consider\n * whether the property on `NgZone` should be `Observable` or `Signal`.\n */\nconst ZONE_IS_STABLE_OBSERVABLE = new InjectionToken(ngDevMode ? 'isStable Observable' : '', {\n    providedIn: 'root',\n    // TODO(atscott): Replace this with a suitable default like `new\n    // BehaviorSubject(true).asObservable`. Again, long term this won't exist on ApplicationRef at\n    // all but until we can remove it, we need a default value zoneless.\n    factory: isStableFactory,\n});\nfunction isStableFactory() {\n    const zone = inject(NgZone);\n    let _stable = true;\n    const isCurrentlyStable = new Observable((observer) => {\n        _stable = zone.isStable && !zone.hasPendingMacrotasks && !zone.hasPendingMicrotasks;\n        zone.runOutsideAngular(() => {\n            observer.next(_stable);\n            observer.complete();\n        });\n    });\n    const isStable = new Observable((observer) => {\n        // Create the subscription to onStable outside the Angular Zone so that\n        // the callback is run outside the Angular Zone.\n        let stableSub;\n        zone.runOutsideAngular(() => {\n            stableSub = zone.onStable.subscribe(() => {\n                NgZone.assertNotInAngularZone();\n                // Check whether there are no pending macro/micro tasks in the next tick\n                // to allow for NgZone to update the state.\n                queueMicrotask(() => {\n                    if (!_stable && !zone.hasPendingMacrotasks && !zone.hasPendingMicrotasks) {\n                        _stable = true;\n                        observer.next(true);\n                    }\n                });\n            });\n        });\n        const unstableSub = zone.onUnstable.subscribe(() => {\n            NgZone.assertInAngularZone();\n            if (_stable) {\n                _stable = false;\n                zone.runOutsideAngular(() => {\n                    observer.next(false);\n                });\n            }\n        });\n        return () => {\n            stableSub.unsubscribe();\n            unstableSub.unsubscribe();\n        };\n    });\n    return merge$1(isCurrentlyStable, isStable.pipe(share()));\n}\nfunction shouldBeIgnoredByZone(applyArgs) {\n    if (!Array.isArray(applyArgs)) {\n        return false;\n    }\n    // We should only ever get 1 arg passed through to invokeTask.\n    // Short circuit here incase that behavior changes.\n    if (applyArgs.length !== 1) {\n        return false;\n    }\n    // Prevent triggering change detection when the __ignore_ng_zone__ flag is detected.\n    return applyArgs[0].data?.['__ignore_ng_zone__'] === true;\n}\n\n// Public API for Zone\n\n/**\n *\n * @codeGenApi\n */\nfunction ɵɵresolveWindow(element) {\n    return element.ownerDocument.defaultView;\n}\n/**\n *\n * @codeGenApi\n */\nfunction ɵɵresolveDocument(element) {\n    return element.ownerDocument;\n}\n/**\n *\n * @codeGenApi\n */\nfunction ɵɵresolveBody(element) {\n    return element.ownerDocument.body;\n}\n/**\n * The special delimiter we use to separate property names, prefixes, and suffixes\n * in property binding metadata. See storeBindingMetadata().\n *\n * We intentionally use the Unicode \"REPLACEMENT CHARACTER\" (U+FFFD) as a delimiter\n * because it is a very uncommon character that is unlikely to be part of a user's\n * property names or interpolation strings. If it is in fact used in a property\n * binding, DebugElement.properties will not return the correct value for that\n * binding. However, there should be no runtime effect for real applications.\n *\n * This character is typically rendered as a question mark inside of a diamond.\n * See https://en.wikipedia.org/wiki/Specials_(Unicode_block)\n *\n */\nconst INTERPOLATION_DELIMITER = `�`;\n/**\n * Unwrap a value which might be behind a closure (for forward declaration reasons).\n */\nfunction maybeUnwrapFn(value) {\n    if (value instanceof Function) {\n        return value();\n    }\n    else {\n        return value;\n    }\n}\n/**\n * Detects whether the code is invoked in a browser.\n * Later on, this check should be replaced with a tree-shakable\n * flag (e.g. `!isServer`).\n */\nfunction isPlatformBrowser(injector) {\n    return (injector ?? inject(Injector)).get(PLATFORM_ID) === 'browser';\n}\n\n/**\n * Register a callback to be invoked each time the application\n * finishes rendering.\n *\n * Note that the callback will run\n * - in the order it was registered\n * - once per render\n * - on browser platforms only\n *\n * <div class=\"alert is-important\">\n *\n * Components are not guaranteed to be [hydrated](guide/hydration) before the callback runs.\n * You must use caution when directly reading or writing the DOM and layout.\n *\n * </div>\n *\n * @param callback A callback function to register\n *\n * @usageNotes\n *\n * Use `afterRender` to read or write the DOM after each render.\n *\n * ### Example\n * ```ts\n * @Component({\n *   selector: 'my-cmp',\n *   template: `<span #content>{{ ... }}</span>`,\n * })\n * export class MyComponent {\n *   @ViewChild('content') contentRef: ElementRef;\n *\n *   constructor() {\n *     afterRender(() => {\n *       console.log('content height: ' + this.contentRef.nativeElement.scrollHeight);\n *     });\n *   }\n * }\n * ```\n *\n * @developerPreview\n */\nfunction afterRender(callback, options) {\n    !options && assertInInjectionContext(afterRender);\n    const injector = options?.injector ?? inject(Injector);\n    if (!isPlatformBrowser(injector)) {\n        return { destroy() { } };\n    }\n    let destroy;\n    const unregisterFn = injector.get(DestroyRef).onDestroy(() => destroy?.());\n    const afterRenderEventManager = injector.get(AfterRenderEventManager);\n    // Lazily initialize the handler implementation, if necessary. This is so that it can be\n    // tree-shaken if `afterRender` and `afterNextRender` aren't used.\n    const callbackHandler = afterRenderEventManager.handler ??= new AfterRenderCallbackHandlerImpl();\n    const ngZone = injector.get(NgZone);\n    const errorHandler = injector.get(ErrorHandler, null, { optional: true });\n    const instance = new AfterRenderCallback(ngZone, errorHandler, callback);\n    destroy = () => {\n        callbackHandler.unregister(instance);\n        unregisterFn();\n    };\n    callbackHandler.register(instance);\n    return { destroy };\n}\n/**\n * Register a callback to be invoked the next time the application\n * finishes rendering.\n *\n * Note that the callback will run\n * - in the order it was registered\n * - on browser platforms only\n *\n * <div class=\"alert is-important\">\n *\n * Components are not guaranteed to be [hydrated](guide/hydration) before the callback runs.\n * You must use caution when directly reading or writing the DOM and layout.\n *\n * </div>\n *\n * @param callback A callback function to register\n *\n * @usageNotes\n *\n * Use `afterNextRender` to read or write the DOM once,\n * for example to initialize a non-Angular library.\n *\n * ### Example\n * ```ts\n * @Component({\n *   selector: 'my-chart-cmp',\n *   template: `<div #chart>{{ ... }}</div>`,\n * })\n * export class MyChartCmp {\n *   @ViewChild('chart') chartRef: ElementRef;\n *   chart: MyChart|null;\n *\n *   constructor() {\n *     afterNextRender(() => {\n *       this.chart = new MyChart(this.chartRef.nativeElement);\n *     });\n *   }\n * }\n * ```\n *\n * @developerPreview\n */\nfunction afterNextRender(callback, options) {\n    !options && assertInInjectionContext(afterNextRender);\n    const injector = options?.injector ?? inject(Injector);\n    if (!isPlatformBrowser(injector)) {\n        return { destroy() { } };\n    }\n    let destroy;\n    const unregisterFn = injector.get(DestroyRef).onDestroy(() => destroy?.());\n    const afterRenderEventManager = injector.get(AfterRenderEventManager);\n    // Lazily initialize the handler implementation, if necessary. This is so that it can be\n    // tree-shaken if `afterRender` and `afterNextRender` aren't used.\n    const callbackHandler = afterRenderEventManager.handler ??= new AfterRenderCallbackHandlerImpl();\n    const ngZone = injector.get(NgZone);\n    const errorHandler = injector.get(ErrorHandler, null, { optional: true });\n    const instance = new AfterRenderCallback(ngZone, errorHandler, () => {\n        destroy?.();\n        callback();\n    });\n    destroy = () => {\n        callbackHandler.unregister(instance);\n        unregisterFn();\n    };\n    callbackHandler.register(instance);\n    return { destroy };\n}\n/**\n * A wrapper around a function to be used as an after render callback.\n */\nclass AfterRenderCallback {\n    constructor(zone, errorHandler, callbackFn) {\n        this.zone = zone;\n        this.errorHandler = errorHandler;\n        this.callbackFn = callbackFn;\n    }\n    invoke() {\n        try {\n            this.zone.runOutsideAngular(this.callbackFn);\n        }\n        catch (err) {\n            this.errorHandler?.handleError(err);\n        }\n    }\n}\n/**\n * Core functionality for `afterRender` and `afterNextRender`. Kept separate from\n * `AfterRenderEventManager` for tree-shaking.\n */\nclass AfterRenderCallbackHandlerImpl {\n    constructor() {\n        this.executingCallbacks = false;\n        this.callbacks = new Set();\n        this.deferredCallbacks = new Set();\n    }\n    validateBegin() {\n        if (this.executingCallbacks) {\n            throw new RuntimeError(102 /* RuntimeErrorCode.RECURSIVE_APPLICATION_RENDER */, ngDevMode &&\n                'A new render operation began before the previous operation ended. ' +\n                    'Did you trigger change detection from afterRender or afterNextRender?');\n        }\n    }\n    register(callback) {\n        // If we're currently running callbacks, new callbacks should be deferred\n        // until the next render operation.\n        const target = this.executingCallbacks ? this.deferredCallbacks : this.callbacks;\n        target.add(callback);\n    }\n    unregister(callback) {\n        this.callbacks.delete(callback);\n        this.deferredCallbacks.delete(callback);\n    }\n    execute() {\n        this.executingCallbacks = true;\n        for (const callback of this.callbacks) {\n            callback.invoke();\n        }\n        this.executingCallbacks = false;\n        for (const callback of this.deferredCallbacks) {\n            this.callbacks.add(callback);\n        }\n        this.deferredCallbacks.clear();\n    }\n    destroy() {\n        this.callbacks.clear();\n        this.deferredCallbacks.clear();\n    }\n}\n/**\n * Implements core timing for `afterRender` and `afterNextRender` events.\n * Delegates to an optional `AfterRenderCallbackHandler` for implementation.\n */\nclass AfterRenderEventManager {\n    constructor() {\n        this.renderDepth = 0;\n        /* @internal */\n        this.handler = null;\n    }\n    /**\n     * Mark the beginning of a render operation (i.e. CD cycle).\n     * Throws if called while executing callbacks.\n     */\n    begin() {\n        this.handler?.validateBegin();\n        this.renderDepth++;\n    }\n    /**\n     * Mark the end of a render operation. Callbacks will be\n     * executed if there are no more pending operations.\n     */\n    end() {\n        ngDevMode && assertGreaterThan(this.renderDepth, 0, 'renderDepth must be greater than 0');\n        this.renderDepth--;\n        if (this.renderDepth === 0) {\n            this.handler?.execute();\n        }\n    }\n    ngOnDestroy() {\n        this.handler?.destroy();\n        this.handler = null;\n    }\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({\n        token: AfterRenderEventManager,\n        providedIn: 'root',\n        factory: () => new AfterRenderEventManager(),\n    }); }\n}\n\n/**\n * Marks current view and all ancestors dirty.\n *\n * Returns the root view because it is found as a byproduct of marking the view tree\n * dirty, and can be used by methods that consume markViewDirty() to easily schedule\n * change detection. Otherwise, such methods would need to traverse up the view tree\n * an additional time to get the root view and schedule a tick on it.\n *\n * @param lView The starting LView to mark dirty\n * @returns the root LView\n */\nfunction markViewDirty(lView) {\n    while (lView) {\n        lView[FLAGS] |= 64 /* LViewFlags.Dirty */;\n        const parent = getLViewParent(lView);\n        // Stop traversing up as soon as you find a root view that wasn't attached to any container\n        if (isRootView(lView) && !parent) {\n            return lView;\n        }\n        // continue otherwise\n        lView = parent;\n    }\n    return null;\n}\n\n/**\n * Internal token that specifies whether DOM reuse logic\n * during hydration is enabled.\n */\nconst IS_HYDRATION_DOM_REUSE_ENABLED = new InjectionToken((typeof ngDevMode === 'undefined' || !!ngDevMode) ? 'IS_HYDRATION_DOM_REUSE_ENABLED' : '');\n// By default (in client rendering mode), we remove all the contents\n// of the host element and render an application after that.\nconst PRESERVE_HOST_CONTENT_DEFAULT = false;\n/**\n * Internal token that indicates whether host element content should be\n * retained during the bootstrap.\n */\nconst PRESERVE_HOST_CONTENT = new InjectionToken((typeof ngDevMode === 'undefined' || !!ngDevMode) ? 'PRESERVE_HOST_CONTENT' : '', {\n    providedIn: 'root',\n    factory: () => PRESERVE_HOST_CONTENT_DEFAULT,\n});\n\nfunction normalizeDebugBindingName(name) {\n    // Attribute names with `$` (eg `x-y$`) are valid per spec, but unsupported by some browsers\n    name = camelCaseToDashCase(name.replace(/[$@]/g, '_'));\n    return `ng-reflect-${name}`;\n}\nconst CAMEL_CASE_REGEXP = /([A-Z])/g;\nfunction camelCaseToDashCase(input) {\n    return input.replace(CAMEL_CASE_REGEXP, (...m) => '-' + m[1].toLowerCase());\n}\nfunction normalizeDebugBindingValue(value) {\n    try {\n        // Limit the size of the value as otherwise the DOM just gets polluted.\n        return value != null ? value.toString().slice(0, 30) : value;\n    }\n    catch (e) {\n        return '[ERROR] Exception while trying to serialize the value';\n    }\n}\n\n/**\n * The max length of the string representation of a value in an error message\n */\nconst VALUE_STRING_LENGTH_LIMIT = 200;\n/** Verifies that a given type is a Standalone Component. */\nfunction assertStandaloneComponentType(type) {\n    assertComponentDef(type);\n    const componentDef = getComponentDef(type);\n    if (!componentDef.standalone) {\n        throw new RuntimeError(907 /* RuntimeErrorCode.TYPE_IS_NOT_STANDALONE */, `The ${stringifyForError(type)} component is not marked as standalone, ` +\n            `but Angular expects to have a standalone component here. ` +\n            `Please make sure the ${stringifyForError(type)} component has ` +\n            `the \\`standalone: true\\` flag in the decorator.`);\n    }\n}\n/** Verifies whether a given type is a component */\nfunction assertComponentDef(type) {\n    if (!getComponentDef(type)) {\n        throw new RuntimeError(906 /* RuntimeErrorCode.MISSING_GENERATED_DEF */, `The ${stringifyForError(type)} is not an Angular component, ` +\n            `make sure it has the \\`@Component\\` decorator.`);\n    }\n}\n/** Called when there are multiple component selectors that match a given node */\nfunction throwMultipleComponentError(tNode, first, second) {\n    throw new RuntimeError(-300 /* RuntimeErrorCode.MULTIPLE_COMPONENTS_MATCH */, `Multiple components match node with tagname ${tNode.value}: ` +\n        `${stringifyForError(first)} and ` +\n        `${stringifyForError(second)}`);\n}\n/** Throws an ExpressionChangedAfterChecked error if checkNoChanges mode is on. */\nfunction throwErrorIfNoChangesMode(creationMode, oldValue, currValue, propName, lView) {\n    const hostComponentDef = getDeclarationComponentDef(lView);\n    const componentClassName = hostComponentDef?.type?.name;\n    const field = propName ? ` for '${propName}'` : '';\n    let msg = `ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value${field}: '${formatValue(oldValue)}'. Current value: '${formatValue(currValue)}'.${componentClassName ? ` Expression location: ${componentClassName} component` : ''}`;\n    if (creationMode) {\n        msg +=\n            ` It seems like the view has been created after its parent and its children have been dirty checked.` +\n                ` Has it been created in a change detection hook?`;\n    }\n    throw new RuntimeError(-100 /* RuntimeErrorCode.EXPRESSION_CHANGED_AFTER_CHECKED */, msg);\n}\nfunction formatValue(value) {\n    let strValue = String(value);\n    // JSON.stringify will throw on circular references\n    try {\n        if (Array.isArray(value) || strValue === '[object Object]') {\n            strValue = JSON.stringify(value);\n        }\n    }\n    catch (error) {\n    }\n    return strValue.length > VALUE_STRING_LENGTH_LIMIT ?\n        (strValue.substring(0, VALUE_STRING_LENGTH_LIMIT) + '…') :\n        strValue;\n}\nfunction constructDetailsForInterpolation(lView, rootIndex, expressionIndex, meta, changedValue) {\n    const [propName, prefix, ...chunks] = meta.split(INTERPOLATION_DELIMITER);\n    let oldValue = prefix, newValue = prefix;\n    for (let i = 0; i < chunks.length; i++) {\n        const slotIdx = rootIndex + i;\n        oldValue += `${lView[slotIdx]}${chunks[i]}`;\n        newValue += `${slotIdx === expressionIndex ? changedValue : lView[slotIdx]}${chunks[i]}`;\n    }\n    return { propName, oldValue, newValue };\n}\n/**\n * Constructs an object that contains details for the ExpressionChangedAfterItHasBeenCheckedError:\n * - property name (for property bindings or interpolations)\n * - old and new values, enriched using information from metadata\n *\n * More information on the metadata storage format can be found in `storePropertyBindingMetadata`\n * function description.\n */\nfunction getExpressionChangedErrorDetails(lView, bindingIndex, oldValue, newValue) {\n    const tData = lView[TVIEW].data;\n    const metadata = tData[bindingIndex];\n    if (typeof metadata === 'string') {\n        // metadata for property interpolation\n        if (metadata.indexOf(INTERPOLATION_DELIMITER) > -1) {\n            return constructDetailsForInterpolation(lView, bindingIndex, bindingIndex, metadata, newValue);\n        }\n        // metadata for property binding\n        return { propName: metadata, oldValue, newValue };\n    }\n    // metadata is not available for this expression, check if this expression is a part of the\n    // property interpolation by going from the current binding index left and look for a string that\n    // contains INTERPOLATION_DELIMITER, the layout in tView.data for this case will look like this:\n    // [..., 'id�Prefix � and � suffix', null, null, null, ...]\n    if (metadata === null) {\n        let idx = bindingIndex - 1;\n        while (typeof tData[idx] !== 'string' && tData[idx + 1] === null) {\n            idx--;\n        }\n        const meta = tData[idx];\n        if (typeof meta === 'string') {\n            const matches = meta.match(new RegExp(INTERPOLATION_DELIMITER, 'g'));\n            // first interpolation delimiter separates property name from interpolation parts (in case of\n            // property interpolations), so we subtract one from total number of found delimiters\n            if (matches && (matches.length - 1) > bindingIndex - idx) {\n                return constructDetailsForInterpolation(lView, idx, bindingIndex, meta, newValue);\n            }\n        }\n    }\n    return { propName: undefined, oldValue, newValue };\n}\n\nlet currentConsumer = null;\n/**\n * Create a new template consumer pointing at the specified LView.\n * Sometimes, a previously created consumer may be reused, in order to save on allocations. In that\n * case, the LView will be updated.\n */\nfunction getReactiveLViewConsumer(lView, slot) {\n    return lView[slot] ?? getOrCreateCurrentLViewConsumer();\n}\n/**\n * Assigns the `currentTemplateContext` to its LView's `REACTIVE_CONSUMER` slot if there are tracked\n * producers.\n *\n * The presence of producers means that a signal was read while the consumer was the active\n * consumer.\n *\n * If no producers are present, we do not assign the current template context. This also means we\n * can just reuse the template context for the next LView.\n */\nfunction commitLViewConsumerIfHasProducers(lView, slot) {\n    const consumer = getOrCreateCurrentLViewConsumer();\n    if (!consumer.producerNode?.length) {\n        return;\n    }\n    lView[slot] = currentConsumer;\n    consumer.lView = lView;\n    currentConsumer = createLViewConsumer();\n}\nconst REACTIVE_LVIEW_CONSUMER_NODE = {\n    ...REACTIVE_NODE,\n    consumerIsAlwaysLive: true,\n    consumerMarkedDirty: (node) => {\n        (typeof ngDevMode === 'undefined' || ngDevMode) &&\n            assertDefined(node.lView, 'Updating a signal during template or host binding execution is not allowed.');\n        markViewDirty(node.lView);\n    },\n    lView: null,\n};\nfunction createLViewConsumer() {\n    return Object.create(REACTIVE_LVIEW_CONSUMER_NODE);\n}\nfunction getOrCreateCurrentLViewConsumer() {\n    currentConsumer ??= createLViewConsumer();\n    return currentConsumer;\n}\n\n/** A special value which designates that a value has not changed. */\nconst NO_CHANGE = (typeof ngDevMode === 'undefined' || ngDevMode) ? { __brand__: 'NO_CHANGE' } : {};\n\n/**\n * Advances to an element for later binding instructions.\n *\n * Used in conjunction with instructions like {@link property} to act on elements with specified\n * indices, for example those created with {@link element} or {@link elementStart}.\n *\n * ```ts\n * (rf: RenderFlags, ctx: any) => {\n *   if (rf & 1) {\n *     text(0, 'Hello');\n *     text(1, 'Goodbye')\n *     element(2, 'div');\n *   }\n *   if (rf & 2) {\n *     advance(2); // Advance twice to the <div>.\n *     property('title', 'test');\n *   }\n *  }\n * ```\n * @param delta Number of elements to advance forwards by.\n *\n * @codeGenApi\n */\nfunction ɵɵadvance(delta) {\n    ngDevMode && assertGreaterThan(delta, 0, 'Can only advance forward');\n    selectIndexInternal(getTView(), getLView(), getSelectedIndex() + delta, !!ngDevMode && isInCheckNoChangesMode());\n}\nfunction selectIndexInternal(tView, lView, index, checkNoChangesMode) {\n    ngDevMode && assertIndexInDeclRange(lView, index);\n    // Flush the initial hooks for elements in the view that have been added up to this point.\n    // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n    if (!checkNoChangesMode) {\n        const hooksInitPhaseCompleted = (lView[FLAGS] & 3 /* LViewFlags.InitPhaseStateMask */) === 3 /* InitPhaseState.InitPhaseCompleted */;\n        if (hooksInitPhaseCompleted) {\n            const preOrderCheckHooks = tView.preOrderCheckHooks;\n            if (preOrderCheckHooks !== null) {\n                executeCheckHooks(lView, preOrderCheckHooks, index);\n            }\n        }\n        else {\n            const preOrderHooks = tView.preOrderHooks;\n            if (preOrderHooks !== null) {\n                executeInitAndCheckHooks(lView, preOrderHooks, 0 /* InitPhaseState.OnInitHooksToBeRun */, index);\n            }\n        }\n    }\n    // We must set the selected index *after* running the hooks, because hooks may have side-effects\n    // that cause other template functions to run, thus updating the selected index, which is global\n    // state. If we run `setSelectedIndex` *before* we run the hooks, in some cases the selected index\n    // will be altered by the time we leave the `ɵɵadvance` instruction.\n    setSelectedIndex(index);\n}\n\nfunction ɵɵdirectiveInject(token, flags = InjectFlags.Default) {\n    const lView = getLView();\n    // Fall back to inject() if view hasn't been created. This situation can happen in tests\n    // if inject utilities are used before bootstrapping.\n    if (lView === null) {\n        // Verify that we will not get into infinite loop.\n        ngDevMode && assertInjectImplementationNotEqual(ɵɵdirectiveInject);\n        return ɵɵinject(token, flags);\n    }\n    const tNode = getCurrentTNode();\n    const value = getOrCreateInjectable(tNode, lView, resolveForwardRef(token), flags);\n    ngDevMode && emitInjectEvent(token, value, flags);\n    return value;\n}\n/**\n * Throws an error indicating that a factory function could not be generated by the compiler for a\n * particular class.\n *\n * This instruction allows the actual error message to be optimized away when ngDevMode is turned\n * off, saving bytes of generated code while still providing a good experience in dev mode.\n *\n * The name of the class is not mentioned here, but will be in the generated factory function name\n * and thus in the stack trace.\n *\n * @codeGenApi\n */\nfunction ɵɵinvalidFactory() {\n    const msg = ngDevMode ? `This constructor was not compatible with Dependency Injection.` : 'invalid';\n    throw new Error(msg);\n}\n\n/**\n * Invoke `HostBindingsFunction`s for view.\n *\n * This methods executes `TView.hostBindingOpCodes`. It is used to execute the\n * `HostBindingsFunction`s associated with the current `LView`.\n *\n * @param tView Current `TView`.\n * @param lView Current `LView`.\n */\nfunction processHostBindingOpCodes(tView, lView) {\n    const hostBindingOpCodes = tView.hostBindingOpCodes;\n    if (hostBindingOpCodes === null)\n        return;\n    const consumer = getReactiveLViewConsumer(lView, REACTIVE_HOST_BINDING_CONSUMER);\n    try {\n        for (let i = 0; i < hostBindingOpCodes.length; i++) {\n            const opCode = hostBindingOpCodes[i];\n            if (opCode < 0) {\n                // Negative numbers are element indexes.\n                setSelectedIndex(~opCode);\n            }\n            else {\n                // Positive numbers are NumberTuple which store bindingRootIndex and directiveIndex.\n                const directiveIdx = opCode;\n                const bindingRootIndx = hostBindingOpCodes[++i];\n                const hostBindingFn = hostBindingOpCodes[++i];\n                setBindingRootForHostBindings(bindingRootIndx, directiveIdx);\n                consumer.dirty = false;\n                const prevConsumer = consumerBeforeComputation(consumer);\n                try {\n                    const context = lView[directiveIdx];\n                    hostBindingFn(2 /* RenderFlags.Update */, context);\n                }\n                finally {\n                    consumerAfterComputation(consumer, prevConsumer);\n                }\n            }\n        }\n    }\n    finally {\n        if (lView[REACTIVE_HOST_BINDING_CONSUMER] === null) {\n            commitLViewConsumerIfHasProducers(lView, REACTIVE_HOST_BINDING_CONSUMER);\n        }\n        setSelectedIndex(-1);\n    }\n}\nfunction createLView(parentLView, tView, context, flags, host, tHostNode, environment, renderer, injector, embeddedViewInjector, hydrationInfo) {\n    const lView = tView.blueprint.slice();\n    lView[HOST] = host;\n    lView[FLAGS] = flags | 4 /* LViewFlags.CreationMode */ | 128 /* LViewFlags.Attached */ | 8 /* LViewFlags.FirstLViewPass */;\n    if (embeddedViewInjector !== null ||\n        (parentLView && (parentLView[FLAGS] & 2048 /* LViewFlags.HasEmbeddedViewInjector */))) {\n        lView[FLAGS] |= 2048 /* LViewFlags.HasEmbeddedViewInjector */;\n    }\n    resetPreOrderHookFlags(lView);\n    ngDevMode && tView.declTNode && parentLView && assertTNodeForLView(tView.declTNode, parentLView);\n    lView[PARENT] = lView[DECLARATION_VIEW] = parentLView;\n    lView[CONTEXT] = context;\n    lView[ENVIRONMENT] = (environment || parentLView && parentLView[ENVIRONMENT]);\n    ngDevMode && assertDefined(lView[ENVIRONMENT], 'LViewEnvironment is required');\n    lView[RENDERER] = (renderer || parentLView && parentLView[RENDERER]);\n    ngDevMode && assertDefined(lView[RENDERER], 'Renderer is required');\n    lView[INJECTOR$1] = injector || parentLView && parentLView[INJECTOR$1] || null;\n    lView[T_HOST] = tHostNode;\n    lView[ID] = getUniqueLViewId();\n    lView[HYDRATION] = hydrationInfo;\n    lView[EMBEDDED_VIEW_INJECTOR] = embeddedViewInjector;\n    ngDevMode &&\n        assertEqual(tView.type == 2 /* TViewType.Embedded */ ? parentLView !== null : true, true, 'Embedded views must have parentLView');\n    lView[DECLARATION_COMPONENT_VIEW] =\n        tView.type == 2 /* TViewType.Embedded */ ? parentLView[DECLARATION_COMPONENT_VIEW] : lView;\n    return lView;\n}\nfunction getOrCreateTNode(tView, index, type, name, attrs) {\n    ngDevMode && index !== 0 && // 0 are bogus nodes and they are OK. See `createContainerRef` in\n        // `view_engine_compatibility` for additional context.\n        assertGreaterThanOrEqual(index, HEADER_OFFSET, 'TNodes can\\'t be in the LView header.');\n    // Keep this function short, so that the VM will inline it.\n    ngDevMode && assertPureTNodeType(type);\n    let tNode = tView.data[index];\n    if (tNode === null) {\n        tNode = createTNodeAtIndex(tView, index, type, name, attrs);\n        if (isInI18nBlock()) {\n            // If we are in i18n block then all elements should be pre declared through `Placeholder`\n            // See `TNodeType.Placeholder` and `LFrame.inI18n` for more context.\n            // If the `TNode` was not pre-declared than it means it was not mentioned which means it was\n            // removed, so we mark it as detached.\n            tNode.flags |= 32 /* TNodeFlags.isDetached */;\n        }\n    }\n    else if (tNode.type & 64 /* TNodeType.Placeholder */) {\n        tNode.type = type;\n        tNode.value = name;\n        tNode.attrs = attrs;\n        const parent = getCurrentParentTNode();\n        tNode.injectorIndex = parent === null ? -1 : parent.injectorIndex;\n        ngDevMode && assertTNodeForTView(tNode, tView);\n        ngDevMode && assertEqual(index, tNode.index, 'Expecting same index');\n    }\n    setCurrentTNode(tNode, true);\n    return tNode;\n}\nfunction createTNodeAtIndex(tView, index, type, name, attrs) {\n    const currentTNode = getCurrentTNodePlaceholderOk();\n    const isParent = isCurrentTNodeParent();\n    const parent = isParent ? currentTNode : currentTNode && currentTNode.parent;\n    // Parents cannot cross component boundaries because components will be used in multiple places.\n    const tNode = tView.data[index] =\n        createTNode(tView, parent, type, index, name, attrs);\n    // Assign a pointer to the first child node of a given view. The first node is not always the one\n    // at index 0, in case of i18n, index 0 can be the instruction `i18nStart` and the first node has\n    // the index 1 or more, so we can't just check node index.\n    if (tView.firstChild === null) {\n        tView.firstChild = tNode;\n    }\n    if (currentTNode !== null) {\n        if (isParent) {\n            // FIXME(misko): This logic looks unnecessarily complicated. Could we simplify?\n            if (currentTNode.child == null && tNode.parent !== null) {\n                // We are in the same view, which means we are adding content node to the parent view.\n                currentTNode.child = tNode;\n            }\n        }\n        else {\n            if (currentTNode.next === null) {\n                // In the case of i18n the `currentTNode` may already be linked, in which case we don't want\n                // to break the links which i18n created.\n                currentTNode.next = tNode;\n                tNode.prev = currentTNode;\n            }\n        }\n    }\n    return tNode;\n}\n/**\n * When elements are created dynamically after a view blueprint is created (e.g. through\n * i18nApply()), we need to adjust the blueprint for future\n * template passes.\n *\n * @param tView `TView` associated with `LView`\n * @param lView The `LView` containing the blueprint to adjust\n * @param numSlotsToAlloc The number of slots to alloc in the LView, should be >0\n * @param initialValue Initial value to store in blueprint\n */\nfunction allocExpando(tView, lView, numSlotsToAlloc, initialValue) {\n    if (numSlotsToAlloc === 0)\n        return -1;\n    if (ngDevMode) {\n        assertFirstCreatePass(tView);\n        assertSame(tView, lView[TVIEW], '`LView` must be associated with `TView`!');\n        assertEqual(tView.data.length, lView.length, 'Expecting LView to be same size as TView');\n        assertEqual(tView.data.length, tView.blueprint.length, 'Expecting Blueprint to be same size as TView');\n        assertFirstUpdatePass(tView);\n    }\n    const allocIdx = lView.length;\n    for (let i = 0; i < numSlotsToAlloc; i++) {\n        lView.push(initialValue);\n        tView.blueprint.push(initialValue);\n        tView.data.push(null);\n    }\n    return allocIdx;\n}\nfunction executeTemplate(tView, lView, templateFn, rf, context) {\n    const consumer = getReactiveLViewConsumer(lView, REACTIVE_TEMPLATE_CONSUMER);\n    const prevSelectedIndex = getSelectedIndex();\n    const isUpdatePhase = rf & 2 /* RenderFlags.Update */;\n    try {\n        setSelectedIndex(-1);\n        if (isUpdatePhase && lView.length > HEADER_OFFSET) {\n            // When we're updating, inherently select 0 so we don't\n            // have to generate that instruction for most update blocks.\n            selectIndexInternal(tView, lView, HEADER_OFFSET, !!ngDevMode && isInCheckNoChangesMode());\n        }\n        const preHookType = isUpdatePhase ? 2 /* ProfilerEvent.TemplateUpdateStart */ : 0 /* ProfilerEvent.TemplateCreateStart */;\n        profiler(preHookType, context);\n        const effectiveConsumer = isUpdatePhase ? consumer : null;\n        const prevConsumer = consumerBeforeComputation(effectiveConsumer);\n        try {\n            if (effectiveConsumer !== null) {\n                effectiveConsumer.dirty = false;\n            }\n            templateFn(rf, context);\n        }\n        finally {\n            consumerAfterComputation(effectiveConsumer, prevConsumer);\n        }\n    }\n    finally {\n        if (isUpdatePhase && lView[REACTIVE_TEMPLATE_CONSUMER] === null) {\n            commitLViewConsumerIfHasProducers(lView, REACTIVE_TEMPLATE_CONSUMER);\n        }\n        setSelectedIndex(prevSelectedIndex);\n        const postHookType = isUpdatePhase ? 3 /* ProfilerEvent.TemplateUpdateEnd */ : 1 /* ProfilerEvent.TemplateCreateEnd */;\n        profiler(postHookType, context);\n    }\n}\n//////////////////////////\n//// Element\n//////////////////////////\nfunction executeContentQueries(tView, tNode, lView) {\n    if (isContentQueryHost(tNode)) {\n        const prevConsumer = setActiveConsumer(null);\n        try {\n            const start = tNode.directiveStart;\n            const end = tNode.directiveEnd;\n            for (let directiveIndex = start; directiveIndex < end; directiveIndex++) {\n                const def = tView.data[directiveIndex];\n                if (def.contentQueries) {\n                    def.contentQueries(1 /* RenderFlags.Create */, lView[directiveIndex], directiveIndex);\n                }\n            }\n        }\n        finally {\n            setActiveConsumer(prevConsumer);\n        }\n    }\n}\n/**\n * Creates directive instances.\n */\nfunction createDirectivesInstances(tView, lView, tNode) {\n    if (!getBindingsEnabled())\n        return;\n    instantiateAllDirectives(tView, lView, tNode, getNativeByTNode(tNode, lView));\n    if ((tNode.flags & 64 /* TNodeFlags.hasHostBindings */) === 64 /* TNodeFlags.hasHostBindings */) {\n        invokeDirectivesHostBindings(tView, lView, tNode);\n    }\n}\n/**\n * Takes a list of local names and indices and pushes the resolved local variable values\n * to LView in the same order as they are loaded in the template with load().\n */\nfunction saveResolvedLocalsInData(viewData, tNode, localRefExtractor = getNativeByTNode) {\n    const localNames = tNode.localNames;\n    if (localNames !== null) {\n        let localIndex = tNode.index + 1;\n        for (let i = 0; i < localNames.length; i += 2) {\n            const index = localNames[i + 1];\n            const value = index === -1 ?\n                localRefExtractor(tNode, viewData) :\n                viewData[index];\n            viewData[localIndex++] = value;\n        }\n    }\n}\n/**\n * Gets TView from a template function or creates a new TView\n * if it doesn't already exist.\n *\n * @param def ComponentDef\n * @returns TView\n */\nfunction getOrCreateComponentTView(def) {\n    const tView = def.tView;\n    // Create a TView if there isn't one, or recreate it if the first create pass didn't\n    // complete successfully since we can't know for sure whether it's in a usable shape.\n    if (tView === null || tView.incompleteFirstPass) {\n        // Declaration node here is null since this function is called when we dynamically create a\n        // component and hence there is no declaration.\n        const declTNode = null;\n        return def.tView = createTView(1 /* TViewType.Component */, declTNode, def.template, def.decls, def.vars, def.directiveDefs, def.pipeDefs, def.viewQuery, def.schemas, def.consts, def.id);\n    }\n    return tView;\n}\n/**\n * Creates a TView instance\n *\n * @param type Type of `TView`.\n * @param declTNode Declaration location of this `TView`.\n * @param templateFn Template function\n * @param decls The number of nodes, local refs, and pipes in this template\n * @param directives Registry of directives for this view\n * @param pipes Registry of pipes for this view\n * @param viewQuery View queries for this view\n * @param schemas Schemas for this view\n * @param consts Constants for this view\n */\nfunction createTView(type, declTNode, templateFn, decls, vars, directives, pipes, viewQuery, schemas, constsOrFactory, ssrId) {\n    ngDevMode && ngDevMode.tView++;\n    const bindingStartIndex = HEADER_OFFSET + decls;\n    // This length does not yet contain host bindings from child directives because at this point,\n    // we don't know which directives are active on this template. As soon as a directive is matched\n    // that has a host binding, we will update the blueprint with that def's hostVars count.\n    const initialViewLength = bindingStartIndex + vars;\n    const blueprint = createViewBlueprint(bindingStartIndex, initialViewLength);\n    const consts = typeof constsOrFactory === 'function' ? constsOrFactory() : constsOrFactory;\n    const tView = blueprint[TVIEW] = {\n        type: type,\n        blueprint: blueprint,\n        template: templateFn,\n        queries: null,\n        viewQuery: viewQuery,\n        declTNode: declTNode,\n        data: blueprint.slice().fill(null, bindingStartIndex),\n        bindingStartIndex: bindingStartIndex,\n        expandoStartIndex: initialViewLength,\n        hostBindingOpCodes: null,\n        firstCreatePass: true,\n        firstUpdatePass: true,\n        staticViewQueries: false,\n        staticContentQueries: false,\n        preOrderHooks: null,\n        preOrderCheckHooks: null,\n        contentHooks: null,\n        contentCheckHooks: null,\n        viewHooks: null,\n        viewCheckHooks: null,\n        destroyHooks: null,\n        cleanup: null,\n        contentQueries: null,\n        components: null,\n        directiveRegistry: typeof directives === 'function' ? directives() : directives,\n        pipeRegistry: typeof pipes === 'function' ? pipes() : pipes,\n        firstChild: null,\n        schemas: schemas,\n        consts: consts,\n        incompleteFirstPass: false,\n        ssrId,\n    };\n    if (ngDevMode) {\n        // For performance reasons it is important that the tView retains the same shape during runtime.\n        // (To make sure that all of the code is monomorphic.) For this reason we seal the object to\n        // prevent class transitions.\n        Object.seal(tView);\n    }\n    return tView;\n}\nfunction createViewBlueprint(bindingStartIndex, initialViewLength) {\n    const blueprint = [];\n    for (let i = 0; i < initialViewLength; i++) {\n        blueprint.push(i < bindingStartIndex ? null : NO_CHANGE);\n    }\n    return blueprint;\n}\n/**\n * Locates the host native element, used for bootstrapping existing nodes into rendering pipeline.\n *\n * @param renderer the renderer used to locate the element.\n * @param elementOrSelector Render element or CSS selector to locate the element.\n * @param encapsulation View Encapsulation defined for component that requests host element.\n * @param injector Root view injector instance.\n */\nfunction locateHostElement(renderer, elementOrSelector, encapsulation, injector) {\n    // Note: we use default value for the `PRESERVE_HOST_CONTENT` here even though it's a\n    // tree-shakable one (providedIn:'root'). This code path can be triggered during dynamic\n    // component creation (after calling ViewContainerRef.createComponent) when an injector\n    // instance can be provided. The injector instance might be disconnected from the main DI\n    // tree, thus the `PRESERVE_HOST_CONTENT` would not be able to instantiate. In this case, the\n    // default value will be used.\n    const preserveHostContent = injector.get(PRESERVE_HOST_CONTENT, PRESERVE_HOST_CONTENT_DEFAULT);\n    // When using native Shadow DOM, do not clear host element to allow native slot\n    // projection.\n    const preserveContent = preserveHostContent || encapsulation === ViewEncapsulation$1.ShadowDom;\n    const rootElement = renderer.selectRootElement(elementOrSelector, preserveContent);\n    applyRootElementTransform(rootElement);\n    return rootElement;\n}\n/**\n * Applies any root element transformations that are needed. If hydration is enabled,\n * this will process corrupted text nodes.\n *\n * @param rootElement the app root HTML Element\n */\nfunction applyRootElementTransform(rootElement) {\n    _applyRootElementTransformImpl(rootElement);\n}\n/**\n * Reference to a function that applies transformations to the root HTML element\n * of an app. When hydration is enabled, this processes any corrupt text nodes\n * so they are properly hydratable on the client.\n *\n * @param rootElement the app root HTML Element\n */\nlet _applyRootElementTransformImpl = (rootElement) => null;\n/**\n * Processes text node markers before hydration begins. This replaces any special comment\n * nodes that were added prior to serialization are swapped out to restore proper text\n * nodes before hydration.\n *\n * @param rootElement the app root HTML Element\n */\nfunction applyRootElementTransformImpl(rootElement) {\n    if (hasSkipHydrationAttrOnRElement(rootElement)) {\n        // Handle a situation when the `ngSkipHydration` attribute is applied\n        // to the root node of an application. In this case, we should clear\n        // the contents and render everything from scratch.\n        clearElementContents(rootElement);\n    }\n    else {\n        processTextNodeMarkersBeforeHydration(rootElement);\n    }\n}\n/**\n * Sets the implementation for the `applyRootElementTransform` function.\n */\nfunction enableApplyRootElementTransformImpl() {\n    _applyRootElementTransformImpl = applyRootElementTransformImpl;\n}\n/**\n * Saves context for this cleanup function in LView.cleanupInstances.\n *\n * On the first template pass, saves in TView:\n * - Cleanup function\n * - Index of context we just saved in LView.cleanupInstances\n */\nfunction storeCleanupWithContext(tView, lView, context, cleanupFn) {\n    const lCleanup = getOrCreateLViewCleanup(lView);\n    // Historically the `storeCleanupWithContext` was used to register both framework-level and\n    // user-defined cleanup callbacks, but over time those two types of cleanups were separated.\n    // This dev mode checks assures that user-level cleanup callbacks are _not_ stored in data\n    // structures reserved for framework-specific hooks.\n    ngDevMode &&\n        assertDefined(context, 'Cleanup context is mandatory when registering framework-level destroy hooks');\n    lCleanup.push(context);\n    if (tView.firstCreatePass) {\n        getOrCreateTViewCleanup(tView).push(cleanupFn, lCleanup.length - 1);\n    }\n    else {\n        // Make sure that no new framework-level cleanup functions are registered after the first\n        // template pass is done (and TView data structures are meant to fully constructed).\n        if (ngDevMode) {\n            Object.freeze(getOrCreateTViewCleanup(tView));\n        }\n    }\n}\nfunction createTNode(tView, tParent, type, index, value, attrs) {\n    ngDevMode && index !== 0 && // 0 are bogus nodes and they are OK. See `createContainerRef` in\n        // `view_engine_compatibility` for additional context.\n        assertGreaterThanOrEqual(index, HEADER_OFFSET, 'TNodes can\\'t be in the LView header.');\n    ngDevMode && assertNotSame(attrs, undefined, '\\'undefined\\' is not valid value for \\'attrs\\'');\n    ngDevMode && ngDevMode.tNode++;\n    ngDevMode && tParent && assertTNodeForTView(tParent, tView);\n    let injectorIndex = tParent ? tParent.injectorIndex : -1;\n    let flags = 0;\n    if (isInSkipHydrationBlock$1()) {\n        flags |= 128 /* TNodeFlags.inSkipHydrationBlock */;\n    }\n    const tNode = {\n        type,\n        index,\n        insertBeforeIndex: null,\n        injectorIndex,\n        directiveStart: -1,\n        directiveEnd: -1,\n        directiveStylingLast: -1,\n        componentOffset: -1,\n        propertyBindings: null,\n        flags,\n        providerIndexes: 0,\n        value: value,\n        attrs: attrs,\n        mergedAttrs: null,\n        localNames: null,\n        initialInputs: undefined,\n        inputs: null,\n        outputs: null,\n        tView: null,\n        next: null,\n        prev: null,\n        projectionNext: null,\n        child: null,\n        parent: tParent,\n        projection: null,\n        styles: null,\n        stylesWithoutHost: null,\n        residualStyles: undefined,\n        classes: null,\n        classesWithoutHost: null,\n        residualClasses: undefined,\n        classBindings: 0,\n        styleBindings: 0,\n    };\n    if (ngDevMode) {\n        // For performance reasons it is important that the tNode retains the same shape during runtime.\n        // (To make sure that all of the code is monomorphic.) For this reason we seal the object to\n        // prevent class transitions.\n        Object.seal(tNode);\n    }\n    return tNode;\n}\n/**\n * Generates the `PropertyAliases` data structure from the provided input/output mapping.\n * @param aliasMap Input/output mapping from the directive definition.\n * @param directiveIndex Index of the directive.\n * @param propertyAliases Object in which to store the results.\n * @param hostDirectiveAliasMap Object used to alias or filter out properties for host directives.\n * If the mapping is provided, it'll act as an allowlist, as well as a mapping of what public\n * name inputs/outputs should be exposed under.\n */\nfunction generatePropertyAliases(aliasMap, directiveIndex, propertyAliases, hostDirectiveAliasMap) {\n    for (let publicName in aliasMap) {\n        if (aliasMap.hasOwnProperty(publicName)) {\n            propertyAliases = propertyAliases === null ? {} : propertyAliases;\n            const internalName = aliasMap[publicName];\n            // If there are no host directive mappings, we want to remap using the alias map from the\n            // definition itself. If there is an alias map, it has two functions:\n            // 1. It serves as an allowlist of bindings that are exposed by the host directives. Only the\n            // ones inside the host directive map will be exposed on the host.\n            // 2. The public name of the property is aliased using the host directive alias map, rather\n            // than the alias map from the definition.\n            if (hostDirectiveAliasMap === null) {\n                addPropertyAlias(propertyAliases, directiveIndex, publicName, internalName);\n            }\n            else if (hostDirectiveAliasMap.hasOwnProperty(publicName)) {\n                addPropertyAlias(propertyAliases, directiveIndex, hostDirectiveAliasMap[publicName], internalName);\n            }\n        }\n    }\n    return propertyAliases;\n}\nfunction addPropertyAlias(propertyAliases, directiveIndex, publicName, internalName) {\n    if (propertyAliases.hasOwnProperty(publicName)) {\n        propertyAliases[publicName].push(directiveIndex, internalName);\n    }\n    else {\n        propertyAliases[publicName] = [directiveIndex, internalName];\n    }\n}\n/**\n * Initializes data structures required to work with directive inputs and outputs.\n * Initialization is done for all directives matched on a given TNode.\n */\nfunction initializeInputAndOutputAliases(tView, tNode, hostDirectiveDefinitionMap) {\n    ngDevMode && assertFirstCreatePass(tView);\n    const start = tNode.directiveStart;\n    const end = tNode.directiveEnd;\n    const tViewData = tView.data;\n    const tNodeAttrs = tNode.attrs;\n    const inputsFromAttrs = [];\n    let inputsStore = null;\n    let outputsStore = null;\n    for (let directiveIndex = start; directiveIndex < end; directiveIndex++) {\n        const directiveDef = tViewData[directiveIndex];\n        const aliasData = hostDirectiveDefinitionMap ? hostDirectiveDefinitionMap.get(directiveDef) : null;\n        const aliasedInputs = aliasData ? aliasData.inputs : null;\n        const aliasedOutputs = aliasData ? aliasData.outputs : null;\n        inputsStore =\n            generatePropertyAliases(directiveDef.inputs, directiveIndex, inputsStore, aliasedInputs);\n        outputsStore =\n            generatePropertyAliases(directiveDef.outputs, directiveIndex, outputsStore, aliasedOutputs);\n        // Do not use unbound attributes as inputs to structural directives, since structural\n        // directive inputs can only be set using microsyntax (e.g. `<div *dir=\"exp\">`).\n        // TODO(FW-1930): microsyntax expressions may also contain unbound/static attributes, which\n        // should be set for inline templates.\n        const initialInputs = (inputsStore !== null && tNodeAttrs !== null && !isInlineTemplate(tNode)) ?\n            generateInitialInputs(inputsStore, directiveIndex, tNodeAttrs) :\n            null;\n        inputsFromAttrs.push(initialInputs);\n    }\n    if (inputsStore !== null) {\n        if (inputsStore.hasOwnProperty('class')) {\n            tNode.flags |= 8 /* TNodeFlags.hasClassInput */;\n        }\n        if (inputsStore.hasOwnProperty('style')) {\n            tNode.flags |= 16 /* TNodeFlags.hasStyleInput */;\n        }\n    }\n    tNode.initialInputs = inputsFromAttrs;\n    tNode.inputs = inputsStore;\n    tNode.outputs = outputsStore;\n}\n/**\n * Mapping between attributes names that don't correspond to their element property names.\n *\n * Performance note: this function is written as a series of if checks (instead of, say, a property\n * object lookup) for performance reasons - the series of `if` checks seems to be the fastest way of\n * mapping property names. Do NOT change without benchmarking.\n *\n * Note: this mapping has to be kept in sync with the equally named mapping in the template\n * type-checking machinery of ngtsc.\n */\nfunction mapPropName(name) {\n    if (name === 'class')\n        return 'className';\n    if (name === 'for')\n        return 'htmlFor';\n    if (name === 'formaction')\n        return 'formAction';\n    if (name === 'innerHtml')\n        return 'innerHTML';\n    if (name === 'readonly')\n        return 'readOnly';\n    if (name === 'tabindex')\n        return 'tabIndex';\n    return name;\n}\nfunction elementPropertyInternal(tView, tNode, lView, propName, value, renderer, sanitizer, nativeOnly) {\n    ngDevMode && assertNotSame(value, NO_CHANGE, 'Incoming value should never be NO_CHANGE.');\n    const element = getNativeByTNode(tNode, lView);\n    let inputData = tNode.inputs;\n    let dataValue;\n    if (!nativeOnly && inputData != null && (dataValue = inputData[propName])) {\n        setInputsForProperty(tView, lView, dataValue, propName, value);\n        if (isComponentHost(tNode))\n            markDirtyIfOnPush(lView, tNode.index);\n        if (ngDevMode) {\n            setNgReflectProperties(lView, element, tNode.type, dataValue, value);\n        }\n    }\n    else if (tNode.type & 3 /* TNodeType.AnyRNode */) {\n        propName = mapPropName(propName);\n        if (ngDevMode) {\n            validateAgainstEventProperties(propName);\n            if (!isPropertyValid(element, propName, tNode.value, tView.schemas)) {\n                handleUnknownPropertyError(propName, tNode.value, tNode.type, lView);\n            }\n            ngDevMode.rendererSetProperty++;\n        }\n        // It is assumed that the sanitizer is only added when the compiler determines that the\n        // property is risky, so sanitization can be done without further checks.\n        value = sanitizer != null ? sanitizer(value, tNode.value || '', propName) : value;\n        renderer.setProperty(element, propName, value);\n    }\n    else if (tNode.type & 12 /* TNodeType.AnyContainer */) {\n        // If the node is a container and the property didn't\n        // match any of the inputs or schemas we should throw.\n        if (ngDevMode && !matchingSchemas(tView.schemas, tNode.value)) {\n            handleUnknownPropertyError(propName, tNode.value, tNode.type, lView);\n        }\n    }\n}\n/** If node is an OnPush component, marks its LView dirty. */\nfunction markDirtyIfOnPush(lView, viewIndex) {\n    ngDevMode && assertLView(lView);\n    const childComponentLView = getComponentLViewByIndex(viewIndex, lView);\n    if (!(childComponentLView[FLAGS] & 16 /* LViewFlags.CheckAlways */)) {\n        childComponentLView[FLAGS] |= 64 /* LViewFlags.Dirty */;\n    }\n}\nfunction setNgReflectProperty(lView, element, type, attrName, value) {\n    const renderer = lView[RENDERER];\n    attrName = normalizeDebugBindingName(attrName);\n    const debugValue = normalizeDebugBindingValue(value);\n    if (type & 3 /* TNodeType.AnyRNode */) {\n        if (value == null) {\n            renderer.removeAttribute(element, attrName);\n        }\n        else {\n            renderer.setAttribute(element, attrName, debugValue);\n        }\n    }\n    else {\n        const textContent = escapeCommentText(`bindings=${JSON.stringify({ [attrName]: debugValue }, null, 2)}`);\n        renderer.setValue(element, textContent);\n    }\n}\nfunction setNgReflectProperties(lView, element, type, dataValue, value) {\n    if (type & (3 /* TNodeType.AnyRNode */ | 4 /* TNodeType.Container */)) {\n        /**\n         * dataValue is an array containing runtime input or output names for the directives:\n         * i+0: directive instance index\n         * i+1: privateName\n         *\n         * e.g. [0, 'change', 'change-minified']\n         * we want to set the reflected property with the privateName: dataValue[i+1]\n         */\n        for (let i = 0; i < dataValue.length; i += 2) {\n            setNgReflectProperty(lView, element, type, dataValue[i + 1], value);\n        }\n    }\n}\n/**\n * Resolve the matched directives on a node.\n */\nfunction resolveDirectives(tView, lView, tNode, localRefs) {\n    // Please make sure to have explicit type for `exportsMap`. Inferred type triggers bug in\n    // tsickle.\n    ngDevMode && assertFirstCreatePass(tView);\n    if (getBindingsEnabled()) {\n        const exportsMap = localRefs === null ? null : { '': -1 };\n        const matchResult = findDirectiveDefMatches(tView, tNode);\n        let directiveDefs;\n        let hostDirectiveDefs;\n        if (matchResult === null) {\n            directiveDefs = hostDirectiveDefs = null;\n        }\n        else {\n            [directiveDefs, hostDirectiveDefs] = matchResult;\n        }\n        if (directiveDefs !== null) {\n            initializeDirectives(tView, lView, tNode, directiveDefs, exportsMap, hostDirectiveDefs);\n        }\n        if (exportsMap)\n            cacheMatchingLocalNames(tNode, localRefs, exportsMap);\n    }\n    // Merge the template attrs last so that they have the highest priority.\n    tNode.mergedAttrs = mergeHostAttrs(tNode.mergedAttrs, tNode.attrs);\n}\n/** Initializes the data structures necessary for a list of directives to be instantiated. */\nfunction initializeDirectives(tView, lView, tNode, directives, exportsMap, hostDirectiveDefs) {\n    ngDevMode && assertFirstCreatePass(tView);\n    // Publishes the directive types to DI so they can be injected. Needs to\n    // happen in a separate pass before the TNode flags have been initialized.\n    for (let i = 0; i < directives.length; i++) {\n        diPublicInInjector(getOrCreateNodeInjectorForNode(tNode, lView), tView, directives[i].type);\n    }\n    initTNodeFlags(tNode, tView.data.length, directives.length);\n    // When the same token is provided by several directives on the same node, some rules apply in\n    // the viewEngine:\n    // - viewProviders have priority over providers\n    // - the last directive in NgModule.declarations has priority over the previous one\n    // So to match these rules, the order in which providers are added in the arrays is very\n    // important.\n    for (let i = 0; i < directives.length; i++) {\n        const def = directives[i];\n        if (def.providersResolver)\n            def.providersResolver(def);\n    }\n    let preOrderHooksFound = false;\n    let preOrderCheckHooksFound = false;\n    let directiveIdx = allocExpando(tView, lView, directives.length, null);\n    ngDevMode &&\n        assertSame(directiveIdx, tNode.directiveStart, 'TNode.directiveStart should point to just allocated space');\n    for (let i = 0; i < directives.length; i++) {\n        const def = directives[i];\n        // Merge the attrs in the order of matches. This assumes that the first directive is the\n        // component itself, so that the component has the least priority.\n        tNode.mergedAttrs = mergeHostAttrs(tNode.mergedAttrs, def.hostAttrs);\n        configureViewWithDirective(tView, tNode, lView, directiveIdx, def);\n        saveNameToExportMap(directiveIdx, def, exportsMap);\n        if (def.contentQueries !== null)\n            tNode.flags |= 4 /* TNodeFlags.hasContentQuery */;\n        if (def.hostBindings !== null || def.hostAttrs !== null || def.hostVars !== 0)\n            tNode.flags |= 64 /* TNodeFlags.hasHostBindings */;\n        const lifeCycleHooks = def.type.prototype;\n        // Only push a node index into the preOrderHooks array if this is the first\n        // pre-order hook found on this node.\n        if (!preOrderHooksFound &&\n            (lifeCycleHooks.ngOnChanges || lifeCycleHooks.ngOnInit || lifeCycleHooks.ngDoCheck)) {\n            // We will push the actual hook function into this array later during dir instantiation.\n            // We cannot do it now because we must ensure hooks are registered in the same\n            // order that directives are created (i.e. injection order).\n            (tView.preOrderHooks ??= []).push(tNode.index);\n            preOrderHooksFound = true;\n        }\n        if (!preOrderCheckHooksFound && (lifeCycleHooks.ngOnChanges || lifeCycleHooks.ngDoCheck)) {\n            (tView.preOrderCheckHooks ??= []).push(tNode.index);\n            preOrderCheckHooksFound = true;\n        }\n        directiveIdx++;\n    }\n    initializeInputAndOutputAliases(tView, tNode, hostDirectiveDefs);\n}\n/**\n * Add `hostBindings` to the `TView.hostBindingOpCodes`.\n *\n * @param tView `TView` to which the `hostBindings` should be added.\n * @param tNode `TNode` the element which contains the directive\n * @param directiveIdx Directive index in view.\n * @param directiveVarsIdx Where will the directive's vars be stored\n * @param def `ComponentDef`/`DirectiveDef`, which contains the `hostVars`/`hostBindings` to add.\n */\nfunction registerHostBindingOpCodes(tView, tNode, directiveIdx, directiveVarsIdx, def) {\n    ngDevMode && assertFirstCreatePass(tView);\n    const hostBindings = def.hostBindings;\n    if (hostBindings) {\n        let hostBindingOpCodes = tView.hostBindingOpCodes;\n        if (hostBindingOpCodes === null) {\n            hostBindingOpCodes = tView.hostBindingOpCodes = [];\n        }\n        const elementIndx = ~tNode.index;\n        if (lastSelectedElementIdx(hostBindingOpCodes) != elementIndx) {\n            // Conditionally add select element so that we are more efficient in execution.\n            // NOTE: this is strictly not necessary and it trades code size for runtime perf.\n            // (We could just always add it.)\n            hostBindingOpCodes.push(elementIndx);\n        }\n        hostBindingOpCodes.push(directiveIdx, directiveVarsIdx, hostBindings);\n    }\n}\n/**\n * Returns the last selected element index in the `HostBindingOpCodes`\n *\n * For perf reasons we don't need to update the selected element index in `HostBindingOpCodes` only\n * if it changes. This method returns the last index (or '0' if not found.)\n *\n * Selected element index are only the ones which are negative.\n */\nfunction lastSelectedElementIdx(hostBindingOpCodes) {\n    let i = hostBindingOpCodes.length;\n    while (i > 0) {\n        const value = hostBindingOpCodes[--i];\n        if (typeof value === 'number' && value < 0) {\n            return value;\n        }\n    }\n    return 0;\n}\n/**\n * Instantiate all the directives that were previously resolved on the current node.\n */\nfunction instantiateAllDirectives(tView, lView, tNode, native) {\n    const start = tNode.directiveStart;\n    const end = tNode.directiveEnd;\n    // The component view needs to be created before creating the node injector\n    // since it is used to inject some special symbols like `ChangeDetectorRef`.\n    if (isComponentHost(tNode)) {\n        ngDevMode && assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */);\n        addComponentLogic(lView, tNode, tView.data[start + tNode.componentOffset]);\n    }\n    if (!tView.firstCreatePass) {\n        getOrCreateNodeInjectorForNode(tNode, lView);\n    }\n    attachPatchData(native, lView);\n    const initialInputs = tNode.initialInputs;\n    for (let i = start; i < end; i++) {\n        const def = tView.data[i];\n        const directive = getNodeInjectable(lView, tView, i, tNode);\n        attachPatchData(directive, lView);\n        if (initialInputs !== null) {\n            setInputsFromAttrs(lView, i - start, directive, def, tNode, initialInputs);\n        }\n        if (isComponentDef(def)) {\n            const componentView = getComponentLViewByIndex(tNode.index, lView);\n            componentView[CONTEXT] = getNodeInjectable(lView, tView, i, tNode);\n        }\n    }\n}\nfunction invokeDirectivesHostBindings(tView, lView, tNode) {\n    const start = tNode.directiveStart;\n    const end = tNode.directiveEnd;\n    const elementIndex = tNode.index;\n    const currentDirectiveIndex = getCurrentDirectiveIndex();\n    try {\n        setSelectedIndex(elementIndex);\n        for (let dirIndex = start; dirIndex < end; dirIndex++) {\n            const def = tView.data[dirIndex];\n            const directive = lView[dirIndex];\n            setCurrentDirectiveIndex(dirIndex);\n            if (def.hostBindings !== null || def.hostVars !== 0 || def.hostAttrs !== null) {\n                invokeHostBindingsInCreationMode(def, directive);\n            }\n        }\n    }\n    finally {\n        setSelectedIndex(-1);\n        setCurrentDirectiveIndex(currentDirectiveIndex);\n    }\n}\n/**\n * Invoke the host bindings in creation mode.\n *\n * @param def `DirectiveDef` which may contain the `hostBindings` function.\n * @param directive Instance of directive.\n */\nfunction invokeHostBindingsInCreationMode(def, directive) {\n    if (def.hostBindings !== null) {\n        def.hostBindings(1 /* RenderFlags.Create */, directive);\n    }\n}\n/**\n * Matches the current node against all available selectors.\n * If a component is matched (at most one), it is returned in first position in the array.\n */\nfunction findDirectiveDefMatches(tView, tNode) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode && assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */ | 12 /* TNodeType.AnyContainer */);\n    const registry = tView.directiveRegistry;\n    let matches = null;\n    let hostDirectiveDefs = null;\n    if (registry) {\n        for (let i = 0; i < registry.length; i++) {\n            const def = registry[i];\n            if (isNodeMatchingSelectorList(tNode, def.selectors, /* isProjectionMode */ false)) {\n                matches || (matches = []);\n                if (isComponentDef(def)) {\n                    if (ngDevMode) {\n                        assertTNodeType(tNode, 2 /* TNodeType.Element */, `\"${tNode.value}\" tags cannot be used as component hosts. ` +\n                            `Please use a different tag to activate the ${stringify(def.type)} component.`);\n                        if (isComponentHost(tNode)) {\n                            throwMultipleComponentError(tNode, matches.find(isComponentDef).type, def.type);\n                        }\n                    }\n                    // Components are inserted at the front of the matches array so that their lifecycle\n                    // hooks run before any directive lifecycle hooks. This appears to be for ViewEngine\n                    // compatibility. This logic doesn't make sense with host directives, because it\n                    // would allow the host directives to undo any overrides the host may have made.\n                    // To handle this case, the host directives of components are inserted at the beginning\n                    // of the array, followed by the component. As such, the insertion order is as follows:\n                    // 1. Host directives belonging to the selector-matched component.\n                    // 2. Selector-matched component.\n                    // 3. Host directives belonging to selector-matched directives.\n                    // 4. Selector-matched directives.\n                    if (def.findHostDirectiveDefs !== null) {\n                        const hostDirectiveMatches = [];\n                        hostDirectiveDefs = hostDirectiveDefs || new Map();\n                        def.findHostDirectiveDefs(def, hostDirectiveMatches, hostDirectiveDefs);\n                        // Add all host directives declared on this component, followed by the component itself.\n                        // Host directives should execute first so the host has a chance to override changes\n                        // to the DOM made by them.\n                        matches.unshift(...hostDirectiveMatches, def);\n                        // Component is offset starting from the beginning of the host directives array.\n                        const componentOffset = hostDirectiveMatches.length;\n                        markAsComponentHost(tView, tNode, componentOffset);\n                    }\n                    else {\n                        // No host directives on this component, just add the\n                        // component def to the beginning of the matches.\n                        matches.unshift(def);\n                        markAsComponentHost(tView, tNode, 0);\n                    }\n                }\n                else {\n                    // Append any host directives to the matches first.\n                    hostDirectiveDefs = hostDirectiveDefs || new Map();\n                    def.findHostDirectiveDefs?.(def, matches, hostDirectiveDefs);\n                    matches.push(def);\n                }\n            }\n        }\n    }\n    return matches === null ? null : [matches, hostDirectiveDefs];\n}\n/**\n * Marks a given TNode as a component's host. This consists of:\n * - setting the component offset on the TNode.\n * - storing index of component's host element so it will be queued for view refresh during CD.\n */\nfunction markAsComponentHost(tView, hostTNode, componentOffset) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode && assertGreaterThan(componentOffset, -1, 'componentOffset must be great than -1');\n    hostTNode.componentOffset = componentOffset;\n    (tView.components ??= []).push(hostTNode.index);\n}\n/** Caches local names and their matching directive indices for query and template lookups. */\nfunction cacheMatchingLocalNames(tNode, localRefs, exportsMap) {\n    if (localRefs) {\n        const localNames = tNode.localNames = [];\n        // Local names must be stored in tNode in the same order that localRefs are defined\n        // in the template to ensure the data is loaded in the same slots as their refs\n        // in the template (for template queries).\n        for (let i = 0; i < localRefs.length; i += 2) {\n            const index = exportsMap[localRefs[i + 1]];\n            if (index == null)\n                throw new RuntimeError(-301 /* RuntimeErrorCode.EXPORT_NOT_FOUND */, ngDevMode && `Export of name '${localRefs[i + 1]}' not found!`);\n            localNames.push(localRefs[i], index);\n        }\n    }\n}\n/**\n * Builds up an export map as directives are created, so local refs can be quickly mapped\n * to their directive instances.\n */\nfunction saveNameToExportMap(directiveIdx, def, exportsMap) {\n    if (exportsMap) {\n        if (def.exportAs) {\n            for (let i = 0; i < def.exportAs.length; i++) {\n                exportsMap[def.exportAs[i]] = directiveIdx;\n            }\n        }\n        if (isComponentDef(def))\n            exportsMap[''] = directiveIdx;\n    }\n}\n/**\n * Initializes the flags on the current node, setting all indices to the initial index,\n * the directive count to 0, and adding the isComponent flag.\n * @param index the initial index\n */\nfunction initTNodeFlags(tNode, index, numberOfDirectives) {\n    ngDevMode &&\n        assertNotEqual(numberOfDirectives, tNode.directiveEnd - tNode.directiveStart, 'Reached the max number of directives');\n    tNode.flags |= 1 /* TNodeFlags.isDirectiveHost */;\n    // When the first directive is created on a node, save the index\n    tNode.directiveStart = index;\n    tNode.directiveEnd = index + numberOfDirectives;\n    tNode.providerIndexes = index;\n}\n/**\n * Setup directive for instantiation.\n *\n * We need to create a `NodeInjectorFactory` which is then inserted in both the `Blueprint` as well\n * as `LView`. `TView` gets the `DirectiveDef`.\n *\n * @param tView `TView`\n * @param tNode `TNode`\n * @param lView `LView`\n * @param directiveIndex Index where the directive will be stored in the Expando.\n * @param def `DirectiveDef`\n */\nfunction configureViewWithDirective(tView, tNode, lView, directiveIndex, def) {\n    ngDevMode &&\n        assertGreaterThanOrEqual(directiveIndex, HEADER_OFFSET, 'Must be in Expando section');\n    tView.data[directiveIndex] = def;\n    const directiveFactory = def.factory || (def.factory = getFactoryDef(def.type, true));\n    // Even though `directiveFactory` will already be using `ɵɵdirectiveInject` in its generated code,\n    // we also want to support `inject()` directly from the directive constructor context so we set\n    // `ɵɵdirectiveInject` as the inject implementation here too.\n    const nodeInjectorFactory = new NodeInjectorFactory(directiveFactory, isComponentDef(def), ɵɵdirectiveInject);\n    tView.blueprint[directiveIndex] = nodeInjectorFactory;\n    lView[directiveIndex] = nodeInjectorFactory;\n    registerHostBindingOpCodes(tView, tNode, directiveIndex, allocExpando(tView, lView, def.hostVars, NO_CHANGE), def);\n}\nfunction addComponentLogic(lView, hostTNode, def) {\n    const native = getNativeByTNode(hostTNode, lView);\n    const tView = getOrCreateComponentTView(def);\n    // Only component views should be added to the view tree directly. Embedded views are\n    // accessed through their containers because they may be removed / re-added later.\n    const rendererFactory = lView[ENVIRONMENT].rendererFactory;\n    let lViewFlags = 16 /* LViewFlags.CheckAlways */;\n    if (def.signals) {\n        lViewFlags = 4096 /* LViewFlags.SignalView */;\n    }\n    else if (def.onPush) {\n        lViewFlags = 64 /* LViewFlags.Dirty */;\n    }\n    const componentView = addToViewTree(lView, createLView(lView, tView, null, lViewFlags, native, hostTNode, null, rendererFactory.createRenderer(native, def), null, null, null));\n    // Component view will always be created before any injected LContainers,\n    // so this is a regular element, wrap it with the component view\n    lView[hostTNode.index] = componentView;\n}\nfunction elementAttributeInternal(tNode, lView, name, value, sanitizer, namespace) {\n    if (ngDevMode) {\n        assertNotSame(value, NO_CHANGE, 'Incoming value should never be NO_CHANGE.');\n        validateAgainstEventAttributes(name);\n        assertTNodeType(tNode, 2 /* TNodeType.Element */, `Attempted to set attribute \\`${name}\\` on a container node. ` +\n            `Host bindings are not valid on ng-container or ng-template.`);\n    }\n    const element = getNativeByTNode(tNode, lView);\n    setElementAttribute(lView[RENDERER], element, namespace, tNode.value, name, value, sanitizer);\n}\nfunction setElementAttribute(renderer, element, namespace, tagName, name, value, sanitizer) {\n    if (value == null) {\n        ngDevMode && ngDevMode.rendererRemoveAttribute++;\n        renderer.removeAttribute(element, name, namespace);\n    }\n    else {\n        ngDevMode && ngDevMode.rendererSetAttribute++;\n        const strValue = sanitizer == null ? renderStringify(value) : sanitizer(value, tagName || '', name);\n        renderer.setAttribute(element, name, strValue, namespace);\n    }\n}\n/**\n * Sets initial input properties on directive instances from attribute data\n *\n * @param lView Current LView that is being processed.\n * @param directiveIndex Index of the directive in directives array\n * @param instance Instance of the directive on which to set the initial inputs\n * @param def The directive def that contains the list of inputs\n * @param tNode The static data for this node\n */\nfunction setInputsFromAttrs(lView, directiveIndex, instance, def, tNode, initialInputData) {\n    const initialInputs = initialInputData[directiveIndex];\n    if (initialInputs !== null) {\n        for (let i = 0; i < initialInputs.length;) {\n            const publicName = initialInputs[i++];\n            const privateName = initialInputs[i++];\n            const value = initialInputs[i++];\n            writeToDirectiveInput(def, instance, publicName, privateName, value);\n            if (ngDevMode) {\n                const nativeElement = getNativeByTNode(tNode, lView);\n                setNgReflectProperty(lView, nativeElement, tNode.type, privateName, value);\n            }\n        }\n    }\n}\nfunction writeToDirectiveInput(def, instance, publicName, privateName, value) {\n    const prevConsumer = setActiveConsumer(null);\n    try {\n        const inputTransforms = def.inputTransforms;\n        if (inputTransforms !== null && inputTransforms.hasOwnProperty(privateName)) {\n            value = inputTransforms[privateName].call(instance, value);\n        }\n        if (def.setInput !== null) {\n            def.setInput(instance, value, publicName, privateName);\n        }\n        else {\n            instance[privateName] = value;\n        }\n    }\n    finally {\n        setActiveConsumer(prevConsumer);\n    }\n}\n/**\n * Generates initialInputData for a node and stores it in the template's static storage\n * so subsequent template invocations don't have to recalculate it.\n *\n * initialInputData is an array containing values that need to be set as input properties\n * for directives on this node, but only once on creation. We need this array to support\n * the case where you set an @Input property of a directive using attribute-like syntax.\n * e.g. if you have a `name` @Input, you can set it once like this:\n *\n * <my-component name=\"Bess\"></my-component>\n *\n * @param inputs Input alias map that was generated from the directive def inputs.\n * @param directiveIndex Index of the directive that is currently being processed.\n * @param attrs Static attrs on this node.\n */\nfunction generateInitialInputs(inputs, directiveIndex, attrs) {\n    let inputsToStore = null;\n    let i = 0;\n    while (i < attrs.length) {\n        const attrName = attrs[i];\n        if (attrName === 0 /* AttributeMarker.NamespaceURI */) {\n            // We do not allow inputs on namespaced attributes.\n            i += 4;\n            continue;\n        }\n        else if (attrName === 5 /* AttributeMarker.ProjectAs */) {\n            // Skip over the `ngProjectAs` value.\n            i += 2;\n            continue;\n        }\n        // If we hit any other attribute markers, we're done anyway. None of those are valid inputs.\n        if (typeof attrName === 'number')\n            break;\n        if (inputs.hasOwnProperty(attrName)) {\n            if (inputsToStore === null)\n                inputsToStore = [];\n            // Find the input's public name from the input store. Note that we can be found easier\n            // through the directive def, but we want to do it using the inputs store so that it can\n            // account for host directive aliases.\n            const inputConfig = inputs[attrName];\n            for (let j = 0; j < inputConfig.length; j += 2) {\n                if (inputConfig[j] === directiveIndex) {\n                    inputsToStore.push(attrName, inputConfig[j + 1], attrs[i + 1]);\n                    // A directive can't have multiple inputs with the same name so we can break here.\n                    break;\n                }\n            }\n        }\n        i += 2;\n    }\n    return inputsToStore;\n}\n//////////////////////////\n//// ViewContainer & View\n//////////////////////////\n/**\n * Creates a LContainer, either from a container instruction, or for a ViewContainerRef.\n *\n * @param hostNative The host element for the LContainer\n * @param hostTNode The host TNode for the LContainer\n * @param currentView The parent view of the LContainer\n * @param native The native comment element\n * @param isForViewContainerRef Optional a flag indicating the ViewContainerRef case\n * @returns LContainer\n */\nfunction createLContainer(hostNative, currentView, native, tNode) {\n    ngDevMode && assertLView(currentView);\n    const lContainer = [\n        hostNative,\n        true,\n        false,\n        currentView,\n        null,\n        0,\n        tNode,\n        native,\n        null,\n        null,\n        null, // dehydrated views\n    ];\n    ngDevMode &&\n        assertEqual(lContainer.length, CONTAINER_HEADER_OFFSET, 'Should allocate correct number of slots for LContainer header.');\n    return lContainer;\n}\n/** Refreshes all content queries declared by directives in a given view */\nfunction refreshContentQueries(tView, lView) {\n    const contentQueries = tView.contentQueries;\n    if (contentQueries !== null) {\n        for (let i = 0; i < contentQueries.length; i += 2) {\n            const queryStartIdx = contentQueries[i];\n            const directiveDefIdx = contentQueries[i + 1];\n            if (directiveDefIdx !== -1) {\n                const directiveDef = tView.data[directiveDefIdx];\n                ngDevMode && assertDefined(directiveDef, 'DirectiveDef not found.');\n                ngDevMode &&\n                    assertDefined(directiveDef.contentQueries, 'contentQueries function should be defined');\n                setCurrentQueryIndex(queryStartIdx);\n                directiveDef.contentQueries(2 /* RenderFlags.Update */, lView[directiveDefIdx], directiveDefIdx);\n            }\n        }\n    }\n}\n/**\n * Adds LView or LContainer to the end of the current view tree.\n *\n * This structure will be used to traverse through nested views to remove listeners\n * and call onDestroy callbacks.\n *\n * @param lView The view where LView or LContainer should be added\n * @param adjustedHostIndex Index of the view's host node in LView[], adjusted for header\n * @param lViewOrLContainer The LView or LContainer to add to the view tree\n * @returns The state passed in\n */\nfunction addToViewTree(lView, lViewOrLContainer) {\n    // TODO(benlesh/misko): This implementation is incorrect, because it always adds the LContainer\n    // to the end of the queue, which means if the developer retrieves the LContainers from RNodes out\n    // of order, the change detection will run out of order, as the act of retrieving the the\n    // LContainer from the RNode is what adds it to the queue.\n    if (lView[CHILD_HEAD]) {\n        lView[CHILD_TAIL][NEXT] = lViewOrLContainer;\n    }\n    else {\n        lView[CHILD_HEAD] = lViewOrLContainer;\n    }\n    lView[CHILD_TAIL] = lViewOrLContainer;\n    return lViewOrLContainer;\n}\n///////////////////////////////\n//// Change detection\n///////////////////////////////\nfunction executeViewQueryFn(flags, viewQueryFn, component) {\n    ngDevMode && assertDefined(viewQueryFn, 'View queries function to execute must be defined.');\n    setCurrentQueryIndex(0);\n    const prevConsumer = setActiveConsumer(null);\n    try {\n        viewQueryFn(flags, component);\n    }\n    finally {\n        setActiveConsumer(prevConsumer);\n    }\n}\n///////////////////////////////\n//// Bindings & interpolations\n///////////////////////////////\n/**\n * Stores meta-data for a property binding to be used by TestBed's `DebugElement.properties`.\n *\n * In order to support TestBed's `DebugElement.properties` we need to save, for each binding:\n * - a bound property name;\n * - a static parts of interpolated strings;\n *\n * A given property metadata is saved at the binding's index in the `TView.data` (in other words, a\n * property binding metadata will be stored in `TView.data` at the same index as a bound value in\n * `LView`). Metadata are represented as `INTERPOLATION_DELIMITER`-delimited string with the\n * following format:\n * - `propertyName` for bound properties;\n * - `propertyName�prefix�interpolation_static_part1�..interpolation_static_partN�suffix` for\n * interpolated properties.\n *\n * @param tData `TData` where meta-data will be saved;\n * @param tNode `TNode` that is a target of the binding;\n * @param propertyName bound property name;\n * @param bindingIndex binding index in `LView`\n * @param interpolationParts static interpolation parts (for property interpolations)\n */\nfunction storePropertyBindingMetadata(tData, tNode, propertyName, bindingIndex, ...interpolationParts) {\n    // Binding meta-data are stored only the first time a given property instruction is processed.\n    // Since we don't have a concept of the \"first update pass\" we need to check for presence of the\n    // binding meta-data to decide if one should be stored (or if was stored already).\n    if (tData[bindingIndex] === null) {\n        if (tNode.inputs == null || !tNode.inputs[propertyName]) {\n            const propBindingIdxs = tNode.propertyBindings || (tNode.propertyBindings = []);\n            propBindingIdxs.push(bindingIndex);\n            let bindingMetadata = propertyName;\n            if (interpolationParts.length > 0) {\n                bindingMetadata +=\n                    INTERPOLATION_DELIMITER + interpolationParts.join(INTERPOLATION_DELIMITER);\n            }\n            tData[bindingIndex] = bindingMetadata;\n        }\n    }\n}\nfunction getOrCreateLViewCleanup(view) {\n    // top level variables should not be exported for performance reasons (PERF_NOTES.md)\n    return view[CLEANUP] || (view[CLEANUP] = []);\n}\nfunction getOrCreateTViewCleanup(tView) {\n    return tView.cleanup || (tView.cleanup = []);\n}\n/**\n * There are cases where the sub component's renderer needs to be included\n * instead of the current renderer (see the componentSyntheticHost* instructions).\n */\nfunction loadComponentRenderer(currentDef, tNode, lView) {\n    // TODO(FW-2043): the `currentDef` is null when host bindings are invoked while creating root\n    // component (see packages/core/src/render3/component.ts). This is not consistent with the process\n    // of creating inner components, when current directive index is available in the state. In order\n    // to avoid relying on current def being `null` (thus special-casing root component creation), the\n    // process of creating root component should be unified with the process of creating inner\n    // components.\n    if (currentDef === null || isComponentDef(currentDef)) {\n        lView = unwrapLView(lView[tNode.index]);\n    }\n    return lView[RENDERER];\n}\n/** Handles an error thrown in an LView. */\nfunction handleError(lView, error) {\n    const injector = lView[INJECTOR$1];\n    const errorHandler = injector ? injector.get(ErrorHandler, null) : null;\n    errorHandler && errorHandler.handleError(error);\n}\n/**\n * Set the inputs of directives at the current node to corresponding value.\n *\n * @param tView The current TView\n * @param lView the `LView` which contains the directives.\n * @param inputs mapping between the public \"input\" name and privately-known,\n *        possibly minified, property names to write to.\n * @param value Value to set.\n */\nfunction setInputsForProperty(tView, lView, inputs, publicName, value) {\n    for (let i = 0; i < inputs.length;) {\n        const index = inputs[i++];\n        const privateName = inputs[i++];\n        const instance = lView[index];\n        ngDevMode && assertIndexInRange(lView, index);\n        const def = tView.data[index];\n        writeToDirectiveInput(def, instance, publicName, privateName, value);\n    }\n}\n/**\n * Updates a text binding at a given index in a given LView.\n */\nfunction textBindingInternal(lView, index, value) {\n    ngDevMode && assertString(value, 'Value should be a string');\n    ngDevMode && assertNotSame(value, NO_CHANGE, 'value should not be NO_CHANGE');\n    ngDevMode && assertIndexInRange(lView, index);\n    const element = getNativeByIndex(index, lView);\n    ngDevMode && assertDefined(element, 'native element should exist');\n    updateTextNode(lView[RENDERER], element, value);\n}\n\nfunction renderComponent(hostLView, componentHostIdx) {\n    ngDevMode && assertEqual(isCreationMode(hostLView), true, 'Should be run in creation mode');\n    const componentView = getComponentLViewByIndex(componentHostIdx, hostLView);\n    const componentTView = componentView[TVIEW];\n    syncViewWithBlueprint(componentTView, componentView);\n    const hostRNode = componentView[HOST];\n    // Populate an LView with hydration info retrieved from the DOM via TransferState.\n    if (hostRNode !== null && componentView[HYDRATION] === null) {\n        componentView[HYDRATION] = retrieveHydrationInfo(hostRNode, componentView[INJECTOR$1]);\n    }\n    renderView(componentTView, componentView, componentView[CONTEXT]);\n}\n/**\n * Syncs an LView instance with its blueprint if they have gotten out of sync.\n *\n * Typically, blueprints and their view instances should always be in sync, so the loop here\n * will be skipped. However, consider this case of two components side-by-side:\n *\n * App template:\n * ```\n * <comp></comp>\n * <comp></comp>\n * ```\n *\n * The following will happen:\n * 1. App template begins processing.\n * 2. First <comp> is matched as a component and its LView is created.\n * 3. Second <comp> is matched as a component and its LView is created.\n * 4. App template completes processing, so it's time to check child templates.\n * 5. First <comp> template is checked. It has a directive, so its def is pushed to blueprint.\n * 6. Second <comp> template is checked. Its blueprint has been updated by the first\n * <comp> template, but its LView was created before this update, so it is out of sync.\n *\n * Note that embedded views inside ngFor loops will never be out of sync because these views\n * are processed as soon as they are created.\n *\n * @param tView The `TView` that contains the blueprint for syncing\n * @param lView The view to sync\n */\nfunction syncViewWithBlueprint(tView, lView) {\n    for (let i = lView.length; i < tView.blueprint.length; i++) {\n        lView.push(tView.blueprint[i]);\n    }\n}\n/**\n * Processes a view in the creation mode. This includes a number of steps in a specific order:\n * - creating view query functions (if any);\n * - executing a template function in the creation mode;\n * - updating static queries (if any);\n * - creating child components defined in a given view.\n */\nfunction renderView(tView, lView, context) {\n    ngDevMode && assertEqual(isCreationMode(lView), true, 'Should be run in creation mode');\n    enterView(lView);\n    try {\n        const viewQuery = tView.viewQuery;\n        if (viewQuery !== null) {\n            executeViewQueryFn(1 /* RenderFlags.Create */, viewQuery, context);\n        }\n        // Execute a template associated with this view, if it exists. A template function might not be\n        // defined for the root component views.\n        const templateFn = tView.template;\n        if (templateFn !== null) {\n            executeTemplate(tView, lView, templateFn, 1 /* RenderFlags.Create */, context);\n        }\n        // This needs to be set before children are processed to support recursive components.\n        // This must be set to false immediately after the first creation run because in an\n        // ngFor loop, all the views will be created together before update mode runs and turns\n        // off firstCreatePass. If we don't set it here, instances will perform directive\n        // matching, etc again and again.\n        if (tView.firstCreatePass) {\n            tView.firstCreatePass = false;\n        }\n        // We resolve content queries specifically marked as `static` in creation mode. Dynamic\n        // content queries are resolved during change detection (i.e. update mode), after embedded\n        // views are refreshed (see block above).\n        if (tView.staticContentQueries) {\n            refreshContentQueries(tView, lView);\n        }\n        // We must materialize query results before child components are processed\n        // in case a child component has projected a container. The LContainer needs\n        // to exist so the embedded views are properly attached by the container.\n        if (tView.staticViewQueries) {\n            executeViewQueryFn(2 /* RenderFlags.Update */, tView.viewQuery, context);\n        }\n        // Render child component views.\n        const components = tView.components;\n        if (components !== null) {\n            renderChildComponents(lView, components);\n        }\n    }\n    catch (error) {\n        // If we didn't manage to get past the first template pass due to\n        // an error, mark the view as corrupted so we can try to recover.\n        if (tView.firstCreatePass) {\n            tView.incompleteFirstPass = true;\n            tView.firstCreatePass = false;\n        }\n        throw error;\n    }\n    finally {\n        lView[FLAGS] &= ~4 /* LViewFlags.CreationMode */;\n        leaveView();\n    }\n}\n/** Renders child components in the current view (creation mode). */\nfunction renderChildComponents(hostLView, components) {\n    for (let i = 0; i < components.length; i++) {\n        renderComponent(hostLView, components[i]);\n    }\n}\n\n/**\n * Tracks all effects registered within a given application and runs them via `flush`.\n */\nclass EffectManager {\n    constructor() {\n        this.all = new Set();\n        this.queue = new Map();\n    }\n    create(effectFn, destroyRef, allowSignalWrites) {\n        const zone = (typeof Zone === 'undefined') ? null : Zone.current;\n        const w = watch(effectFn, (watch) => {\n            if (!this.all.has(watch)) {\n                return;\n            }\n            this.queue.set(watch, zone);\n        }, allowSignalWrites);\n        this.all.add(w);\n        // Effects start dirty.\n        w.notify();\n        let unregisterOnDestroy;\n        const destroy = () => {\n            w.cleanup();\n            unregisterOnDestroy?.();\n            this.all.delete(w);\n            this.queue.delete(w);\n        };\n        unregisterOnDestroy = destroyRef?.onDestroy(destroy);\n        return {\n            destroy,\n        };\n    }\n    flush() {\n        if (this.queue.size === 0) {\n            return;\n        }\n        for (const [watch, zone] of this.queue) {\n            this.queue.delete(watch);\n            if (zone) {\n                zone.run(() => watch.run());\n            }\n            else {\n                watch.run();\n            }\n        }\n    }\n    get isQueueEmpty() {\n        return this.queue.size === 0;\n    }\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({\n        token: EffectManager,\n        providedIn: 'root',\n        factory: () => new EffectManager(),\n    }); }\n}\n/**\n * Create a global `Effect` for the given reactive function.\n *\n * @developerPreview\n */\nfunction effect(effectFn, options) {\n    !options?.injector && assertInInjectionContext(effect);\n    const injector = options?.injector ?? inject(Injector);\n    const effectManager = injector.get(EffectManager);\n    const destroyRef = options?.manualCleanup !== true ? injector.get(DestroyRef) : null;\n    return effectManager.create(effectFn, destroyRef, !!options?.allowSignalWrites);\n}\n\n/**\n * Compute the static styling (class/style) from `TAttributes`.\n *\n * This function should be called during `firstCreatePass` only.\n *\n * @param tNode The `TNode` into which the styling information should be loaded.\n * @param attrs `TAttributes` containing the styling information.\n * @param writeToHost Where should the resulting static styles be written?\n *   - `false` Write to `TNode.stylesWithoutHost` / `TNode.classesWithoutHost`\n *   - `true` Write to `TNode.styles` / `TNode.classes`\n */\nfunction computeStaticStyling(tNode, attrs, writeToHost) {\n    ngDevMode &&\n        assertFirstCreatePass(getTView(), 'Expecting to be called in first template pass only');\n    let styles = writeToHost ? tNode.styles : null;\n    let classes = writeToHost ? tNode.classes : null;\n    let mode = 0;\n    if (attrs !== null) {\n        for (let i = 0; i < attrs.length; i++) {\n            const value = attrs[i];\n            if (typeof value === 'number') {\n                mode = value;\n            }\n            else if (mode == 1 /* AttributeMarker.Classes */) {\n                classes = concatStringsWithSpace(classes, value);\n            }\n            else if (mode == 2 /* AttributeMarker.Styles */) {\n                const style = value;\n                const styleValue = attrs[++i];\n                styles = concatStringsWithSpace(styles, style + ': ' + styleValue + ';');\n            }\n        }\n    }\n    writeToHost ? tNode.styles = styles : tNode.stylesWithoutHost = styles;\n    writeToHost ? tNode.classes = classes : tNode.classesWithoutHost = classes;\n}\n\nfunction collectNativeNodes(tView, lView, tNode, result, isProjection = false) {\n    while (tNode !== null) {\n        ngDevMode &&\n            assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */ | 12 /* TNodeType.AnyContainer */ | 16 /* TNodeType.Projection */ | 32 /* TNodeType.Icu */);\n        const lNode = lView[tNode.index];\n        if (lNode !== null) {\n            result.push(unwrapRNode(lNode));\n        }\n        // A given lNode can represent either a native node or a LContainer (when it is a host of a\n        // ViewContainerRef). When we find a LContainer we need to descend into it to collect root nodes\n        // from the views in this container.\n        if (isLContainer(lNode)) {\n            collectNativeNodesInLContainer(lNode, result);\n        }\n        const tNodeType = tNode.type;\n        if (tNodeType & 8 /* TNodeType.ElementContainer */) {\n            collectNativeNodes(tView, lView, tNode.child, result);\n        }\n        else if (tNodeType & 32 /* TNodeType.Icu */) {\n            const nextRNode = icuContainerIterate(tNode, lView);\n            let rNode;\n            while (rNode = nextRNode()) {\n                result.push(rNode);\n            }\n        }\n        else if (tNodeType & 16 /* TNodeType.Projection */) {\n            const nodesInSlot = getProjectionNodes(lView, tNode);\n            if (Array.isArray(nodesInSlot)) {\n                result.push(...nodesInSlot);\n            }\n            else {\n                const parentView = getLViewParent(lView[DECLARATION_COMPONENT_VIEW]);\n                ngDevMode && assertParentView(parentView);\n                collectNativeNodes(parentView[TVIEW], parentView, nodesInSlot, result, true);\n            }\n        }\n        tNode = isProjection ? tNode.projectionNext : tNode.next;\n    }\n    return result;\n}\n/**\n * Collects all root nodes in all views in a given LContainer.\n */\nfunction collectNativeNodesInLContainer(lContainer, result) {\n    for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n        const lViewInAContainer = lContainer[i];\n        const lViewFirstChildTNode = lViewInAContainer[TVIEW].firstChild;\n        if (lViewFirstChildTNode !== null) {\n            collectNativeNodes(lViewInAContainer[TVIEW], lViewInAContainer, lViewFirstChildTNode, result);\n        }\n    }\n    // When an LContainer is created, the anchor (comment) node is:\n    // - (1) either reused in case of an ElementContainer (<ng-container>)\n    // - (2) or a new comment node is created\n    // In the first case, the anchor comment node would be added to the final\n    // list by the code in the `collectNativeNodes` function\n    // (see the `result.push(unwrapRNode(lNode))` line), but the second\n    // case requires extra handling: the anchor node needs to be added to the\n    // final list manually. See additional information in the `createAnchorNode`\n    // function in the `view_container_ref.ts`.\n    //\n    // In the first case, the same reference would be stored in the `NATIVE`\n    // and `HOST` slots in an LContainer. Otherwise, this is the second case and\n    // we should add an element to the final list.\n    if (lContainer[NATIVE] !== lContainer[HOST]) {\n        result.push(lContainer[NATIVE]);\n    }\n}\n\nfunction detectChangesInternal(tView, lView, context, notifyErrorHandler = true) {\n    const environment = lView[ENVIRONMENT];\n    const rendererFactory = environment.rendererFactory;\n    const afterRenderEventManager = environment.afterRenderEventManager;\n    // Check no changes mode is a dev only mode used to verify that bindings have not changed\n    // since they were assigned. We do not want to invoke renderer factory functions in that mode\n    // to avoid any possible side-effects.\n    const checkNoChangesMode = !!ngDevMode && isInCheckNoChangesMode();\n    if (!checkNoChangesMode) {\n        rendererFactory.begin?.();\n        afterRenderEventManager?.begin();\n    }\n    try {\n        refreshView(tView, lView, tView.template, context);\n    }\n    catch (error) {\n        if (notifyErrorHandler) {\n            handleError(lView, error);\n        }\n        throw error;\n    }\n    finally {\n        if (!checkNoChangesMode) {\n            rendererFactory.end?.();\n            // One final flush of the effects queue to catch any effects created in `ngAfterViewInit` or\n            // other post-order hooks.\n            environment.effectManager?.flush();\n            // Invoke all callbacks registered via `after*Render`, if needed.\n            afterRenderEventManager?.end();\n        }\n    }\n}\nfunction checkNoChangesInternal(tView, lView, context, notifyErrorHandler = true) {\n    setIsInCheckNoChangesMode(true);\n    try {\n        detectChangesInternal(tView, lView, context, notifyErrorHandler);\n    }\n    finally {\n        setIsInCheckNoChangesMode(false);\n    }\n}\n/**\n * Synchronously perform change detection on a component (and possibly its sub-components).\n *\n * This function triggers change detection in a synchronous way on a component.\n *\n * @param component The component which the change detection should be performed on.\n */\nfunction detectChanges(component) {\n    const view = getComponentViewByInstance(component);\n    detectChangesInternal(view[TVIEW], view, component);\n}\n/**\n * Processes a view in update mode. This includes a number of steps in a specific order:\n * - executing a template function in update mode;\n * - executing hooks;\n * - refreshing queries;\n * - setting host bindings;\n * - refreshing child (embedded and component) views.\n */\nfunction refreshView(tView, lView, templateFn, context) {\n    ngDevMode && assertEqual(isCreationMode(lView), false, 'Should be run in update mode');\n    const flags = lView[FLAGS];\n    if ((flags & 256 /* LViewFlags.Destroyed */) === 256 /* LViewFlags.Destroyed */)\n        return;\n    // Check no changes mode is a dev only mode used to verify that bindings have not changed\n    // since they were assigned. We do not want to execute lifecycle hooks in that mode.\n    const isInCheckNoChangesPass = ngDevMode && isInCheckNoChangesMode();\n    !isInCheckNoChangesPass && lView[ENVIRONMENT].effectManager?.flush();\n    enterView(lView);\n    try {\n        resetPreOrderHookFlags(lView);\n        setBindingIndex(tView.bindingStartIndex);\n        if (templateFn !== null) {\n            executeTemplate(tView, lView, templateFn, 2 /* RenderFlags.Update */, context);\n        }\n        const hooksInitPhaseCompleted = (flags & 3 /* LViewFlags.InitPhaseStateMask */) === 3 /* InitPhaseState.InitPhaseCompleted */;\n        // execute pre-order hooks (OnInit, OnChanges, DoCheck)\n        // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n        if (!isInCheckNoChangesPass) {\n            if (hooksInitPhaseCompleted) {\n                const preOrderCheckHooks = tView.preOrderCheckHooks;\n                if (preOrderCheckHooks !== null) {\n                    executeCheckHooks(lView, preOrderCheckHooks, null);\n                }\n            }\n            else {\n                const preOrderHooks = tView.preOrderHooks;\n                if (preOrderHooks !== null) {\n                    executeInitAndCheckHooks(lView, preOrderHooks, 0 /* InitPhaseState.OnInitHooksToBeRun */, null);\n                }\n                incrementInitPhaseFlags(lView, 0 /* InitPhaseState.OnInitHooksToBeRun */);\n            }\n        }\n        // First mark transplanted views that are declared in this lView as needing a refresh at their\n        // insertion points. This is needed to avoid the situation where the template is defined in this\n        // `LView` but its declaration appears after the insertion component.\n        markTransplantedViewsForRefresh(lView);\n        detectChangesInEmbeddedViews(lView, 2 /* ChangeDetectionMode.BugToForceRefreshAndIgnoreViewFlags */);\n        // Content query results must be refreshed before content hooks are called.\n        if (tView.contentQueries !== null) {\n            refreshContentQueries(tView, lView);\n        }\n        // execute content hooks (AfterContentInit, AfterContentChecked)\n        // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n        if (!isInCheckNoChangesPass) {\n            if (hooksInitPhaseCompleted) {\n                const contentCheckHooks = tView.contentCheckHooks;\n                if (contentCheckHooks !== null) {\n                    executeCheckHooks(lView, contentCheckHooks);\n                }\n            }\n            else {\n                const contentHooks = tView.contentHooks;\n                if (contentHooks !== null) {\n                    executeInitAndCheckHooks(lView, contentHooks, 1 /* InitPhaseState.AfterContentInitHooksToBeRun */);\n                }\n                incrementInitPhaseFlags(lView, 1 /* InitPhaseState.AfterContentInitHooksToBeRun */);\n            }\n        }\n        processHostBindingOpCodes(tView, lView);\n        // Refresh child component views.\n        const components = tView.components;\n        if (components !== null) {\n            detectChangesInChildComponents(lView, components, 0 /* ChangeDetectionMode.Global */);\n        }\n        // View queries must execute after refreshing child components because a template in this view\n        // could be inserted in a child component. If the view query executes before child component\n        // refresh, the template might not yet be inserted.\n        const viewQuery = tView.viewQuery;\n        if (viewQuery !== null) {\n            executeViewQueryFn(2 /* RenderFlags.Update */, viewQuery, context);\n        }\n        // execute view hooks (AfterViewInit, AfterViewChecked)\n        // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n        if (!isInCheckNoChangesPass) {\n            if (hooksInitPhaseCompleted) {\n                const viewCheckHooks = tView.viewCheckHooks;\n                if (viewCheckHooks !== null) {\n                    executeCheckHooks(lView, viewCheckHooks);\n                }\n            }\n            else {\n                const viewHooks = tView.viewHooks;\n                if (viewHooks !== null) {\n                    executeInitAndCheckHooks(lView, viewHooks, 2 /* InitPhaseState.AfterViewInitHooksToBeRun */);\n                }\n                incrementInitPhaseFlags(lView, 2 /* InitPhaseState.AfterViewInitHooksToBeRun */);\n            }\n        }\n        if (tView.firstUpdatePass === true) {\n            // We need to make sure that we only flip the flag on successful `refreshView` only\n            // Don't do this in `finally` block.\n            // If we did this in `finally` block then an exception could block the execution of styling\n            // instructions which in turn would be unable to insert themselves into the styling linked\n            // list. The result of this would be that if the exception would not be throw on subsequent CD\n            // the styling would be unable to process it data and reflect to the DOM.\n            tView.firstUpdatePass = false;\n        }\n        // Do not reset the dirty state when running in check no changes mode. We don't want components\n        // to behave differently depending on whether check no changes is enabled or not. For example:\n        // Marking an OnPush component as dirty from within the `ngAfterViewInit` hook in order to\n        // refresh a `NgClass` binding should work. If we would reset the dirty state in the check\n        // no changes cycle, the component would be not be dirty for the next update pass. This would\n        // be different in production mode where the component dirty state is not reset.\n        if (!isInCheckNoChangesPass) {\n            lView[FLAGS] &= ~(64 /* LViewFlags.Dirty */ | 8 /* LViewFlags.FirstLViewPass */);\n        }\n        clearViewRefreshFlag(lView);\n    }\n    finally {\n        leaveView();\n    }\n}\n/**\n * Goes over embedded views (ones created through ViewContainerRef APIs) and refreshes\n * them by executing an associated template function.\n */\nfunction detectChangesInEmbeddedViews(lView, mode) {\n    for (let lContainer = getFirstLContainer(lView); lContainer !== null; lContainer = getNextLContainer(lContainer)) {\n        for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n            const embeddedLView = lContainer[i];\n            detectChangesInView(embeddedLView, mode);\n        }\n    }\n}\n/**\n * Mark transplanted views as needing to be refreshed at their insertion points.\n *\n * @param lView The `LView` that may have transplanted views.\n */\nfunction markTransplantedViewsForRefresh(lView) {\n    for (let lContainer = getFirstLContainer(lView); lContainer !== null; lContainer = getNextLContainer(lContainer)) {\n        if (!lContainer[HAS_TRANSPLANTED_VIEWS])\n            continue;\n        const movedViews = lContainer[MOVED_VIEWS];\n        ngDevMode && assertDefined(movedViews, 'Transplanted View flags set but missing MOVED_VIEWS');\n        for (let i = 0; i < movedViews.length; i++) {\n            const movedLView = movedViews[i];\n            const insertionLContainer = movedLView[PARENT];\n            ngDevMode && assertLContainer(insertionLContainer);\n            markViewForRefresh(movedLView);\n        }\n    }\n}\n/**\n * Detects changes in a component by entering the component view and processing its bindings,\n * queries, etc. if it is CheckAlways, OnPush and Dirty, etc.\n *\n * @param componentHostIdx  Element index in LView[] (adjusted for HEADER_OFFSET)\n */\nfunction detectChangesInComponent(hostLView, componentHostIdx, mode) {\n    ngDevMode && assertEqual(isCreationMode(hostLView), false, 'Should be run in update mode');\n    const componentView = getComponentLViewByIndex(componentHostIdx, hostLView);\n    detectChangesInView(componentView, mode);\n}\n/**\n * Visits a view as part of change detection traversal.\n *\n * - If the view is detached, no additional traversal happens.\n *\n * The view is refreshed if:\n * - If the view is CheckAlways or Dirty and ChangeDetectionMode is `Global`\n * - If the view has the `RefreshTransplantedView` flag\n *\n * The view is not refreshed, but descendants are traversed in `ChangeDetectionMode.Targeted` if the\n * view has a non-zero TRANSPLANTED_VIEWS_TO_REFRESH counter.\n *\n */\nfunction detectChangesInView(lView, mode) {\n    if (!viewAttachedToChangeDetector(lView)) {\n        return;\n    }\n    const tView = lView[TVIEW];\n    const flags = lView[FLAGS];\n    if ((flags & (16 /* LViewFlags.CheckAlways */ | 64 /* LViewFlags.Dirty */) &&\n        mode === 0 /* ChangeDetectionMode.Global */) ||\n        flags & 1024 /* LViewFlags.RefreshView */ ||\n        mode === 2 /* ChangeDetectionMode.BugToForceRefreshAndIgnoreViewFlags */) {\n        refreshView(tView, lView, tView.template, lView[CONTEXT]);\n    }\n    else if (lView[DESCENDANT_VIEWS_TO_REFRESH] > 0) {\n        detectChangesInEmbeddedViews(lView, 1 /* ChangeDetectionMode.Targeted */);\n        const components = tView.components;\n        if (components !== null) {\n            detectChangesInChildComponents(lView, components, 1 /* ChangeDetectionMode.Targeted */);\n        }\n    }\n}\n/** Refreshes child components in the current view (update mode). */\nfunction detectChangesInChildComponents(hostLView, components, mode) {\n    for (let i = 0; i < components.length; i++) {\n        detectChangesInComponent(hostLView, components[i], mode);\n    }\n}\n\nclass ViewRef$1 {\n    get rootNodes() {\n        const lView = this._lView;\n        const tView = lView[TVIEW];\n        return collectNativeNodes(tView, lView, tView.firstChild, []);\n    }\n    constructor(\n    /**\n     * This represents `LView` associated with the component when ViewRef is a ChangeDetectorRef.\n     *\n     * When ViewRef is created for a dynamic component, this also represents the `LView` for the\n     * component.\n     *\n     * For a \"regular\" ViewRef created for an embedded view, this is the `LView` for the embedded\n     * view.\n     *\n     * @internal\n     */\n    _lView, \n    /**\n     * This represents the `LView` associated with the point where `ChangeDetectorRef` was\n     * requested.\n     *\n     * This may be different from `_lView` if the `_cdRefInjectingView` is an embedded view.\n     */\n    _cdRefInjectingView) {\n        this._lView = _lView;\n        this._cdRefInjectingView = _cdRefInjectingView;\n        this._appRef = null;\n        this._attachedToViewContainer = false;\n    }\n    get context() {\n        return this._lView[CONTEXT];\n    }\n    set context(value) {\n        this._lView[CONTEXT] = value;\n    }\n    get destroyed() {\n        return (this._lView[FLAGS] & 256 /* LViewFlags.Destroyed */) === 256 /* LViewFlags.Destroyed */;\n    }\n    destroy() {\n        if (this._appRef) {\n            this._appRef.detachView(this);\n        }\n        else if (this._attachedToViewContainer) {\n            const parent = this._lView[PARENT];\n            if (isLContainer(parent)) {\n                const viewRefs = parent[VIEW_REFS];\n                const index = viewRefs ? viewRefs.indexOf(this) : -1;\n                if (index > -1) {\n                    ngDevMode &&\n                        assertEqual(index, parent.indexOf(this._lView) - CONTAINER_HEADER_OFFSET, 'An attached view should be in the same position within its container as its ViewRef in the VIEW_REFS array.');\n                    detachView(parent, index);\n                    removeFromArray(viewRefs, index);\n                }\n            }\n            this._attachedToViewContainer = false;\n        }\n        destroyLView(this._lView[TVIEW], this._lView);\n    }\n    onDestroy(callback) {\n        storeLViewOnDestroy(this._lView, callback);\n    }\n    /**\n     * Marks a view and all of its ancestors dirty.\n     *\n     * This can be used to ensure an {@link ChangeDetectionStrategy#OnPush} component is\n     * checked when it needs to be re-rendered but the two normal triggers haven't marked it\n     * dirty (i.e. inputs haven't changed and events haven't fired in the view).\n     *\n     * <!-- TODO: Add a link to a chapter on OnPush components -->\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * @Component({\n     *   selector: 'app-root',\n     *   template: `Number of ticks: {{numberOfTicks}}`\n     *   changeDetection: ChangeDetectionStrategy.OnPush,\n     * })\n     * class AppComponent {\n     *   numberOfTicks = 0;\n     *\n     *   constructor(private ref: ChangeDetectorRef) {\n     *     setInterval(() => {\n     *       this.numberOfTicks++;\n     *       // the following is required, otherwise the view will not be updated\n     *       this.ref.markForCheck();\n     *     }, 1000);\n     *   }\n     * }\n     * ```\n     */\n    markForCheck() {\n        markViewDirty(this._cdRefInjectingView || this._lView);\n    }\n    /**\n     * Detaches the view from the change detection tree.\n     *\n     * Detached views will not be checked during change detection runs until they are\n     * re-attached, even if they are dirty. `detach` can be used in combination with\n     * {@link ChangeDetectorRef#detectChanges} to implement local change\n     * detection checks.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     * <!-- TODO: Add a live demo once ref.detectChanges is merged into master -->\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * The following example defines a component with a large list of readonly data.\n     * Imagine the data changes constantly, many times per second. For performance reasons,\n     * we want to check and update the list every five seconds. We can do that by detaching\n     * the component's change detector and doing a local check every five seconds.\n     *\n     * ```typescript\n     * class DataProvider {\n     *   // in a real application the returned data will be different every time\n     *   get data() {\n     *     return [1,2,3,4,5];\n     *   }\n     * }\n     *\n     * @Component({\n     *   selector: 'giant-list',\n     *   template: `\n     *     <li *ngFor=\"let d of dataProvider.data\">Data {{d}}</li>\n     *   `,\n     * })\n     * class GiantList {\n     *   constructor(private ref: ChangeDetectorRef, private dataProvider: DataProvider) {\n     *     ref.detach();\n     *     setInterval(() => {\n     *       this.ref.detectChanges();\n     *     }, 5000);\n     *   }\n     * }\n     *\n     * @Component({\n     *   selector: 'app',\n     *   providers: [DataProvider],\n     *   template: `\n     *     <giant-list><giant-list>\n     *   `,\n     * })\n     * class App {\n     * }\n     * ```\n     */\n    detach() {\n        this._lView[FLAGS] &= ~128 /* LViewFlags.Attached */;\n    }\n    /**\n     * Re-attaches a view to the change detection tree.\n     *\n     * This can be used to re-attach views that were previously detached from the tree\n     * using {@link ChangeDetectorRef#detach}. Views are attached to the tree by default.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * The following example creates a component displaying `live` data. The component will detach\n     * its change detector from the main change detector tree when the component's live property\n     * is set to false.\n     *\n     * ```typescript\n     * class DataProvider {\n     *   data = 1;\n     *\n     *   constructor() {\n     *     setInterval(() => {\n     *       this.data = this.data * 2;\n     *     }, 500);\n     *   }\n     * }\n     *\n     * @Component({\n     *   selector: 'live-data',\n     *   inputs: ['live'],\n     *   template: 'Data: {{dataProvider.data}}'\n     * })\n     * class LiveData {\n     *   constructor(private ref: ChangeDetectorRef, private dataProvider: DataProvider) {}\n     *\n     *   set live(value) {\n     *     if (value) {\n     *       this.ref.reattach();\n     *     } else {\n     *       this.ref.detach();\n     *     }\n     *   }\n     * }\n     *\n     * @Component({\n     *   selector: 'app-root',\n     *   providers: [DataProvider],\n     *   template: `\n     *     Live Update: <input type=\"checkbox\" [(ngModel)]=\"live\">\n     *     <live-data [live]=\"live\"><live-data>\n     *   `,\n     * })\n     * class AppComponent {\n     *   live = true;\n     * }\n     * ```\n     */\n    reattach() {\n        this._lView[FLAGS] |= 128 /* LViewFlags.Attached */;\n    }\n    /**\n     * Checks the view and its children.\n     *\n     * This can also be used in combination with {@link ChangeDetectorRef#detach} to implement\n     * local change detection checks.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     * <!-- TODO: Add a live demo once ref.detectChanges is merged into master -->\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * The following example defines a component with a large list of readonly data.\n     * Imagine, the data changes constantly, many times per second. For performance reasons,\n     * we want to check and update the list every five seconds.\n     *\n     * We can do that by detaching the component's change detector and doing a local change detection\n     * check every five seconds.\n     *\n     * See {@link ChangeDetectorRef#detach} for more information.\n     */\n    detectChanges() {\n        detectChangesInternal(this._lView[TVIEW], this._lView, this.context);\n    }\n    /**\n     * Checks the change detector and its children, and throws if any changes are detected.\n     *\n     * This is used in development mode to verify that running change detection doesn't\n     * introduce other changes.\n     */\n    checkNoChanges() {\n        if (ngDevMode) {\n            checkNoChangesInternal(this._lView[TVIEW], this._lView, this.context);\n        }\n    }\n    attachToViewContainerRef() {\n        if (this._appRef) {\n            throw new RuntimeError(902 /* RuntimeErrorCode.VIEW_ALREADY_ATTACHED */, ngDevMode && 'This view is already attached directly to the ApplicationRef!');\n        }\n        this._attachedToViewContainer = true;\n    }\n    detachFromAppRef() {\n        this._appRef = null;\n        detachViewFromDOM(this._lView[TVIEW], this._lView);\n    }\n    attachToAppRef(appRef) {\n        if (this._attachedToViewContainer) {\n            throw new RuntimeError(902 /* RuntimeErrorCode.VIEW_ALREADY_ATTACHED */, ngDevMode && 'This view is already attached to a ViewContainer!');\n        }\n        this._appRef = appRef;\n    }\n}\n/** @internal */\nclass RootViewRef extends ViewRef$1 {\n    constructor(_view) {\n        super(_view);\n        this._view = _view;\n    }\n    detectChanges() {\n        const lView = this._view;\n        const tView = lView[TVIEW];\n        const context = lView[CONTEXT];\n        detectChangesInternal(tView, lView, context, false);\n    }\n    checkNoChanges() {\n        if (ngDevMode) {\n            const lView = this._view;\n            const tView = lView[TVIEW];\n            const context = lView[CONTEXT];\n            checkNoChangesInternal(tView, lView, context, false);\n        }\n    }\n    get context() {\n        return null;\n    }\n}\n\nclass ComponentFactoryResolver extends ComponentFactoryResolver$1 {\n    /**\n     * @param ngModule The NgModuleRef to which all resolved factories are bound.\n     */\n    constructor(ngModule) {\n        super();\n        this.ngModule = ngModule;\n    }\n    resolveComponentFactory(component) {\n        ngDevMode && assertComponentType(component);\n        const componentDef = getComponentDef(component);\n        return new ComponentFactory(componentDef, this.ngModule);\n    }\n}\nfunction toRefArray(map) {\n    const array = [];\n    for (let nonMinified in map) {\n        if (map.hasOwnProperty(nonMinified)) {\n            const minified = map[nonMinified];\n            array.push({ propName: minified, templateName: nonMinified });\n        }\n    }\n    return array;\n}\nfunction getNamespace(elementName) {\n    const name = elementName.toLowerCase();\n    return name === 'svg' ? SVG_NAMESPACE : (name === 'math' ? MATH_ML_NAMESPACE : null);\n}\n/**\n * Injector that looks up a value using a specific injector, before falling back to the module\n * injector. Used primarily when creating components or embedded views dynamically.\n */\nclass ChainedInjector {\n    constructor(injector, parentInjector) {\n        this.injector = injector;\n        this.parentInjector = parentInjector;\n    }\n    get(token, notFoundValue, flags) {\n        flags = convertToBitFlags(flags);\n        const value = this.injector.get(token, NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR, flags);\n        if (value !== NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR ||\n            notFoundValue === NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR) {\n            // Return the value from the root element injector when\n            // - it provides it\n            //   (value !== NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR)\n            // - the module injector should not be checked\n            //   (notFoundValue === NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR)\n            return value;\n        }\n        return this.parentInjector.get(token, notFoundValue, flags);\n    }\n}\n/**\n * ComponentFactory interface implementation.\n */\nclass ComponentFactory extends ComponentFactory$1 {\n    get inputs() {\n        const componentDef = this.componentDef;\n        const inputTransforms = componentDef.inputTransforms;\n        const refArray = toRefArray(componentDef.inputs);\n        if (inputTransforms !== null) {\n            for (const input of refArray) {\n                if (inputTransforms.hasOwnProperty(input.propName)) {\n                    input.transform = inputTransforms[input.propName];\n                }\n            }\n        }\n        return refArray;\n    }\n    get outputs() {\n        return toRefArray(this.componentDef.outputs);\n    }\n    /**\n     * @param componentDef The component definition.\n     * @param ngModule The NgModuleRef to which the factory is bound.\n     */\n    constructor(componentDef, ngModule) {\n        super();\n        this.componentDef = componentDef;\n        this.ngModule = ngModule;\n        this.componentType = componentDef.type;\n        this.selector = stringifyCSSSelectorList(componentDef.selectors);\n        this.ngContentSelectors =\n            componentDef.ngContentSelectors ? componentDef.ngContentSelectors : [];\n        this.isBoundToModule = !!ngModule;\n    }\n    create(injector, projectableNodes, rootSelectorOrNode, environmentInjector) {\n        environmentInjector = environmentInjector || this.ngModule;\n        let realEnvironmentInjector = environmentInjector instanceof EnvironmentInjector ?\n            environmentInjector :\n            environmentInjector?.injector;\n        if (realEnvironmentInjector && this.componentDef.getStandaloneInjector !== null) {\n            realEnvironmentInjector = this.componentDef.getStandaloneInjector(realEnvironmentInjector) ||\n                realEnvironmentInjector;\n        }\n        const rootViewInjector = realEnvironmentInjector ? new ChainedInjector(injector, realEnvironmentInjector) : injector;\n        const rendererFactory = rootViewInjector.get(RendererFactory2, null);\n        if (rendererFactory === null) {\n            throw new RuntimeError(407 /* RuntimeErrorCode.RENDERER_NOT_FOUND */, ngDevMode &&\n                'Angular was not able to inject a renderer (RendererFactory2). ' +\n                    'Likely this is due to a broken DI hierarchy. ' +\n                    'Make sure that any injector used to create this component has a correct parent.');\n        }\n        const sanitizer = rootViewInjector.get(Sanitizer, null);\n        const effectManager = rootViewInjector.get(EffectManager, null);\n        const afterRenderEventManager = rootViewInjector.get(AfterRenderEventManager, null);\n        const environment = {\n            rendererFactory,\n            sanitizer,\n            effectManager,\n            afterRenderEventManager,\n        };\n        const hostRenderer = rendererFactory.createRenderer(null, this.componentDef);\n        // Determine a tag name used for creating host elements when this component is created\n        // dynamically. Default to 'div' if this component did not specify any tag name in its selector.\n        const elementName = this.componentDef.selectors[0][0] || 'div';\n        const hostRNode = rootSelectorOrNode ?\n            locateHostElement(hostRenderer, rootSelectorOrNode, this.componentDef.encapsulation, rootViewInjector) :\n            createElementNode(hostRenderer, elementName, getNamespace(elementName));\n        // Signal components use the granular \"RefreshView\"  for change detection\n        const signalFlags = (4096 /* LViewFlags.SignalView */ | 512 /* LViewFlags.IsRoot */);\n        // Non-signal components use the traditional \"CheckAlways or OnPush/Dirty\" change detection\n        const nonSignalFlags = this.componentDef.onPush ? 64 /* LViewFlags.Dirty */ | 512 /* LViewFlags.IsRoot */ :\n            16 /* LViewFlags.CheckAlways */ | 512 /* LViewFlags.IsRoot */;\n        const rootFlags = this.componentDef.signals ? signalFlags : nonSignalFlags;\n        let hydrationInfo = null;\n        if (hostRNode !== null) {\n            hydrationInfo = retrieveHydrationInfo(hostRNode, rootViewInjector, true /* isRootView */);\n        }\n        // Create the root view. Uses empty TView and ContentTemplate.\n        const rootTView = createTView(0 /* TViewType.Root */, null, null, 1, 0, null, null, null, null, null, null);\n        const rootLView = createLView(null, rootTView, null, rootFlags, null, null, environment, hostRenderer, rootViewInjector, null, hydrationInfo);\n        // rootView is the parent when bootstrapping\n        // TODO(misko): it looks like we are entering view here but we don't really need to as\n        // `renderView` does that. However as the code is written it is needed because\n        // `createRootComponentView` and `createRootComponent` both read global state. Fixing those\n        // issues would allow us to drop this.\n        enterView(rootLView);\n        let component;\n        let tElementNode;\n        try {\n            const rootComponentDef = this.componentDef;\n            let rootDirectives;\n            let hostDirectiveDefs = null;\n            if (rootComponentDef.findHostDirectiveDefs) {\n                rootDirectives = [];\n                hostDirectiveDefs = new Map();\n                rootComponentDef.findHostDirectiveDefs(rootComponentDef, rootDirectives, hostDirectiveDefs);\n                rootDirectives.push(rootComponentDef);\n            }\n            else {\n                rootDirectives = [rootComponentDef];\n            }\n            const hostTNode = createRootComponentTNode(rootLView, hostRNode);\n            const componentView = createRootComponentView(hostTNode, hostRNode, rootComponentDef, rootDirectives, rootLView, environment, hostRenderer);\n            tElementNode = getTNode(rootTView, HEADER_OFFSET);\n            // TODO(crisbeto): in practice `hostRNode` should always be defined, but there are some tests\n            // where the renderer is mocked out and `undefined` is returned. We should update the tests so\n            // that this check can be removed.\n            if (hostRNode) {\n                setRootNodeAttributes(hostRenderer, rootComponentDef, hostRNode, rootSelectorOrNode);\n            }\n            if (projectableNodes !== undefined) {\n                projectNodes(tElementNode, this.ngContentSelectors, projectableNodes);\n            }\n            // TODO: should LifecycleHooksFeature and other host features be generated by the compiler and\n            // executed here?\n            // Angular 5 reference: https://stackblitz.com/edit/lifecycle-hooks-vcref\n            component = createRootComponent(componentView, rootComponentDef, rootDirectives, hostDirectiveDefs, rootLView, [LifecycleHooksFeature]);\n            renderView(rootTView, rootLView, null);\n        }\n        finally {\n            leaveView();\n        }\n        return new ComponentRef(this.componentType, component, createElementRef(tElementNode, rootLView), rootLView, tElementNode);\n    }\n}\n/**\n * Represents an instance of a Component created via a {@link ComponentFactory}.\n *\n * `ComponentRef` provides access to the Component Instance as well other objects related to this\n * Component Instance and allows you to destroy the Component Instance via the {@link #destroy}\n * method.\n *\n */\nclass ComponentRef extends ComponentRef$1 {\n    constructor(componentType, instance, location, _rootLView, _tNode) {\n        super();\n        this.location = location;\n        this._rootLView = _rootLView;\n        this._tNode = _tNode;\n        this.previousInputValues = null;\n        this.instance = instance;\n        this.hostView = this.changeDetectorRef = new RootViewRef(_rootLView);\n        this.componentType = componentType;\n    }\n    setInput(name, value) {\n        const inputData = this._tNode.inputs;\n        let dataValue;\n        if (inputData !== null && (dataValue = inputData[name])) {\n            this.previousInputValues ??= new Map();\n            // Do not set the input if it is the same as the last value\n            // This behavior matches `bindingUpdated` when binding inputs in templates.\n            if (this.previousInputValues.has(name) &&\n                Object.is(this.previousInputValues.get(name), value)) {\n                return;\n            }\n            const lView = this._rootLView;\n            setInputsForProperty(lView[TVIEW], lView, dataValue, name, value);\n            this.previousInputValues.set(name, value);\n            const childComponentLView = getComponentLViewByIndex(this._tNode.index, lView);\n            markViewDirty(childComponentLView);\n        }\n        else {\n            if (ngDevMode) {\n                const cmpNameForError = stringifyForError(this.componentType);\n                let message = `Can't set value of the '${name}' input on the '${cmpNameForError}' component. `;\n                message += `Make sure that the '${name}' property is annotated with @Input() or a mapped @Input('${name}') exists.`;\n                reportUnknownPropertyError(message);\n            }\n        }\n    }\n    get injector() {\n        return new NodeInjector(this._tNode, this._rootLView);\n    }\n    destroy() {\n        this.hostView.destroy();\n    }\n    onDestroy(callback) {\n        this.hostView.onDestroy(callback);\n    }\n}\n/** Creates a TNode that can be used to instantiate a root component. */\nfunction createRootComponentTNode(lView, rNode) {\n    const tView = lView[TVIEW];\n    const index = HEADER_OFFSET;\n    ngDevMode && assertIndexInRange(lView, index);\n    lView[index] = rNode;\n    // '#host' is added here as we don't know the real host DOM name (we don't want to read it) and at\n    // the same time we want to communicate the debug `TNode` that this is a special `TNode`\n    // representing a host element.\n    return getOrCreateTNode(tView, index, 2 /* TNodeType.Element */, '#host', null);\n}\n/**\n * Creates the root component view and the root component node.\n *\n * @param hostRNode Render host element.\n * @param rootComponentDef ComponentDef\n * @param rootView The parent view where the host node is stored\n * @param rendererFactory Factory to be used for creating child renderers.\n * @param hostRenderer The current renderer\n * @param sanitizer The sanitizer, if provided\n *\n * @returns Component view created\n */\nfunction createRootComponentView(tNode, hostRNode, rootComponentDef, rootDirectives, rootView, environment, hostRenderer) {\n    const tView = rootView[TVIEW];\n    applyRootComponentStyling(rootDirectives, tNode, hostRNode, hostRenderer);\n    // Hydration info is on the host element and needs to be retrieved\n    // and passed to the component LView.\n    let hydrationInfo = null;\n    if (hostRNode !== null) {\n        hydrationInfo = retrieveHydrationInfo(hostRNode, rootView[INJECTOR$1]);\n    }\n    const viewRenderer = environment.rendererFactory.createRenderer(hostRNode, rootComponentDef);\n    let lViewFlags = 16 /* LViewFlags.CheckAlways */;\n    if (rootComponentDef.signals) {\n        lViewFlags = 4096 /* LViewFlags.SignalView */;\n    }\n    else if (rootComponentDef.onPush) {\n        lViewFlags = 64 /* LViewFlags.Dirty */;\n    }\n    const componentView = createLView(rootView, getOrCreateComponentTView(rootComponentDef), null, lViewFlags, rootView[tNode.index], tNode, environment, viewRenderer, null, null, hydrationInfo);\n    if (tView.firstCreatePass) {\n        markAsComponentHost(tView, tNode, rootDirectives.length - 1);\n    }\n    addToViewTree(rootView, componentView);\n    // Store component view at node index, with node as the HOST\n    return rootView[tNode.index] = componentView;\n}\n/** Sets up the styling information on a root component. */\nfunction applyRootComponentStyling(rootDirectives, tNode, rNode, hostRenderer) {\n    for (const def of rootDirectives) {\n        tNode.mergedAttrs = mergeHostAttrs(tNode.mergedAttrs, def.hostAttrs);\n    }\n    if (tNode.mergedAttrs !== null) {\n        computeStaticStyling(tNode, tNode.mergedAttrs, true);\n        if (rNode !== null) {\n            setupStaticAttributes(hostRenderer, rNode, tNode);\n        }\n    }\n}\n/**\n * Creates a root component and sets it up with features and host bindings.Shared by\n * renderComponent() and ViewContainerRef.createComponent().\n */\nfunction createRootComponent(componentView, rootComponentDef, rootDirectives, hostDirectiveDefs, rootLView, hostFeatures) {\n    const rootTNode = getCurrentTNode();\n    ngDevMode && assertDefined(rootTNode, 'tNode should have been already created');\n    const tView = rootLView[TVIEW];\n    const native = getNativeByTNode(rootTNode, rootLView);\n    initializeDirectives(tView, rootLView, rootTNode, rootDirectives, null, hostDirectiveDefs);\n    for (let i = 0; i < rootDirectives.length; i++) {\n        const directiveIndex = rootTNode.directiveStart + i;\n        const directiveInstance = getNodeInjectable(rootLView, tView, directiveIndex, rootTNode);\n        attachPatchData(directiveInstance, rootLView);\n    }\n    invokeDirectivesHostBindings(tView, rootLView, rootTNode);\n    if (native) {\n        attachPatchData(native, rootLView);\n    }\n    // We're guaranteed for the `componentOffset` to be positive here\n    // since a root component always matches a component def.\n    ngDevMode &&\n        assertGreaterThan(rootTNode.componentOffset, -1, 'componentOffset must be great than -1');\n    const component = getNodeInjectable(rootLView, tView, rootTNode.directiveStart + rootTNode.componentOffset, rootTNode);\n    componentView[CONTEXT] = rootLView[CONTEXT] = component;\n    if (hostFeatures !== null) {\n        for (const feature of hostFeatures) {\n            feature(component, rootComponentDef);\n        }\n    }\n    // We want to generate an empty QueryList for root content queries for backwards\n    // compatibility with ViewEngine.\n    executeContentQueries(tView, rootTNode, componentView);\n    return component;\n}\n/** Sets the static attributes on a root component. */\nfunction setRootNodeAttributes(hostRenderer, componentDef, hostRNode, rootSelectorOrNode) {\n    if (rootSelectorOrNode) {\n        setUpAttributes(hostRenderer, hostRNode, ['ng-version', VERSION.full]);\n    }\n    else {\n        // If host element is created as a part of this function call (i.e. `rootSelectorOrNode`\n        // is not defined), also apply attributes and classes extracted from component selector.\n        // Extract attributes and classes from the first selector only to match VE behavior.\n        const { attrs, classes } = extractAttrsAndClassesFromSelector(componentDef.selectors[0]);\n        if (attrs) {\n            setUpAttributes(hostRenderer, hostRNode, attrs);\n        }\n        if (classes && classes.length > 0) {\n            writeDirectClass(hostRenderer, hostRNode, classes.join(' '));\n        }\n    }\n}\n/** Projects the `projectableNodes` that were specified when creating a root component. */\nfunction projectNodes(tNode, ngContentSelectors, projectableNodes) {\n    const projection = tNode.projection = [];\n    for (let i = 0; i < ngContentSelectors.length; i++) {\n        const nodesforSlot = projectableNodes[i];\n        // Projectable nodes can be passed as array of arrays or an array of iterables (ngUpgrade\n        // case). Here we do normalize passed data structure to be an array of arrays to avoid\n        // complex checks down the line.\n        // We also normalize the length of the passed in projectable nodes (to match the number of\n        // <ng-container> slots defined by a component).\n        projection.push(nodesforSlot != null ? Array.from(nodesforSlot) : null);\n    }\n}\n/**\n * Used to enable lifecycle hooks on the root component.\n *\n * Include this feature when calling `renderComponent` if the root component\n * you are rendering has lifecycle hooks defined. Otherwise, the hooks won't\n * be called properly.\n *\n * Example:\n *\n * ```\n * renderComponent(AppComponent, {hostFeatures: [LifecycleHooksFeature]});\n * ```\n */\nfunction LifecycleHooksFeature() {\n    const tNode = getCurrentTNode();\n    ngDevMode && assertDefined(tNode, 'TNode is required');\n    registerPostOrderHooks(getLView()[TVIEW], tNode);\n}\n\nfunction getSuperType(type) {\n    return Object.getPrototypeOf(type.prototype).constructor;\n}\n/**\n * Merges the definition from a super class to a sub class.\n * @param definition The definition that is a SubClass of another directive of component\n *\n * @codeGenApi\n */\nfunction ɵɵInheritDefinitionFeature(definition) {\n    let superType = getSuperType(definition.type);\n    let shouldInheritFields = true;\n    const inheritanceChain = [definition];\n    while (superType) {\n        let superDef = undefined;\n        if (isComponentDef(definition)) {\n            // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n            superDef = superType.ɵcmp || superType.ɵdir;\n        }\n        else {\n            if (superType.ɵcmp) {\n                throw new RuntimeError(903 /* RuntimeErrorCode.INVALID_INHERITANCE */, ngDevMode &&\n                    `Directives cannot inherit Components. Directive ${stringifyForError(definition.type)} is attempting to extend component ${stringifyForError(superType)}`);\n            }\n            // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n            superDef = superType.ɵdir;\n        }\n        if (superDef) {\n            if (shouldInheritFields) {\n                inheritanceChain.push(superDef);\n                // Some fields in the definition may be empty, if there were no values to put in them that\n                // would've justified object creation. Unwrap them if necessary.\n                const writeableDef = definition;\n                writeableDef.inputs = maybeUnwrapEmpty(definition.inputs);\n                writeableDef.inputTransforms = maybeUnwrapEmpty(definition.inputTransforms);\n                writeableDef.declaredInputs = maybeUnwrapEmpty(definition.declaredInputs);\n                writeableDef.outputs = maybeUnwrapEmpty(definition.outputs);\n                // Merge hostBindings\n                const superHostBindings = superDef.hostBindings;\n                superHostBindings && inheritHostBindings(definition, superHostBindings);\n                // Merge queries\n                const superViewQuery = superDef.viewQuery;\n                const superContentQueries = superDef.contentQueries;\n                superViewQuery && inheritViewQuery(definition, superViewQuery);\n                superContentQueries && inheritContentQueries(definition, superContentQueries);\n                // Merge inputs and outputs\n                fillProperties(definition.inputs, superDef.inputs);\n                fillProperties(definition.declaredInputs, superDef.declaredInputs);\n                fillProperties(definition.outputs, superDef.outputs);\n                if (superDef.inputTransforms !== null) {\n                    if (writeableDef.inputTransforms === null) {\n                        writeableDef.inputTransforms = {};\n                    }\n                    fillProperties(writeableDef.inputTransforms, superDef.inputTransforms);\n                }\n                // Merge animations metadata.\n                // If `superDef` is a Component, the `data` field is present (defaults to an empty object).\n                if (isComponentDef(superDef) && superDef.data.animation) {\n                    // If super def is a Component, the `definition` is also a Component, since Directives can\n                    // not inherit Components (we throw an error above and cannot reach this code).\n                    const defData = definition.data;\n                    defData.animation = (defData.animation || []).concat(superDef.data.animation);\n                }\n            }\n            // Run parent features\n            const features = superDef.features;\n            if (features) {\n                for (let i = 0; i < features.length; i++) {\n                    const feature = features[i];\n                    if (feature && feature.ngInherit) {\n                        feature(definition);\n                    }\n                    // If `InheritDefinitionFeature` is a part of the current `superDef`, it means that this\n                    // def already has all the necessary information inherited from its super class(es), so we\n                    // can stop merging fields from super classes. However we need to iterate through the\n                    // prototype chain to look for classes that might contain other \"features\" (like\n                    // NgOnChanges), which we should invoke for the original `definition`. We set the\n                    // `shouldInheritFields` flag to indicate that, essentially skipping fields inheritance\n                    // logic and only invoking functions from the \"features\" list.\n                    if (feature === ɵɵInheritDefinitionFeature) {\n                        shouldInheritFields = false;\n                    }\n                }\n            }\n        }\n        superType = Object.getPrototypeOf(superType);\n    }\n    mergeHostAttrsAcrossInheritance(inheritanceChain);\n}\n/**\n * Merge the `hostAttrs` and `hostVars` from the inherited parent to the base class.\n *\n * @param inheritanceChain A list of `WritableDefs` starting at the top most type and listing\n * sub-types in order. For each type take the `hostAttrs` and `hostVars` and merge it with the child\n * type.\n */\nfunction mergeHostAttrsAcrossInheritance(inheritanceChain) {\n    let hostVars = 0;\n    let hostAttrs = null;\n    // We process the inheritance order from the base to the leaves here.\n    for (let i = inheritanceChain.length - 1; i >= 0; i--) {\n        const def = inheritanceChain[i];\n        // For each `hostVars`, we need to add the superclass amount.\n        def.hostVars = (hostVars += def.hostVars);\n        // for each `hostAttrs` we need to merge it with superclass.\n        def.hostAttrs =\n            mergeHostAttrs(def.hostAttrs, hostAttrs = mergeHostAttrs(hostAttrs, def.hostAttrs));\n    }\n}\nfunction maybeUnwrapEmpty(value) {\n    if (value === EMPTY_OBJ) {\n        return {};\n    }\n    else if (value === EMPTY_ARRAY) {\n        return [];\n    }\n    else {\n        return value;\n    }\n}\nfunction inheritViewQuery(definition, superViewQuery) {\n    const prevViewQuery = definition.viewQuery;\n    if (prevViewQuery) {\n        definition.viewQuery = (rf, ctx) => {\n            superViewQuery(rf, ctx);\n            prevViewQuery(rf, ctx);\n        };\n    }\n    else {\n        definition.viewQuery = superViewQuery;\n    }\n}\nfunction inheritContentQueries(definition, superContentQueries) {\n    const prevContentQueries = definition.contentQueries;\n    if (prevContentQueries) {\n        definition.contentQueries = (rf, ctx, directiveIndex) => {\n            superContentQueries(rf, ctx, directiveIndex);\n            prevContentQueries(rf, ctx, directiveIndex);\n        };\n    }\n    else {\n        definition.contentQueries = superContentQueries;\n    }\n}\nfunction inheritHostBindings(definition, superHostBindings) {\n    const prevHostBindings = definition.hostBindings;\n    if (prevHostBindings) {\n        definition.hostBindings = (rf, ctx) => {\n            superHostBindings(rf, ctx);\n            prevHostBindings(rf, ctx);\n        };\n    }\n    else {\n        definition.hostBindings = superHostBindings;\n    }\n}\n\n/**\n * Fields which exist on either directive or component definitions, and need to be copied from\n * parent to child classes by the `ɵɵCopyDefinitionFeature`.\n */\nconst COPY_DIRECTIVE_FIELDS = [\n    // The child class should use the providers of its parent.\n    'providersResolver',\n    // Not listed here are any fields which are handled by the `ɵɵInheritDefinitionFeature`, such\n    // as inputs, outputs, and host binding functions.\n];\n/**\n * Fields which exist only on component definitions, and need to be copied from parent to child\n * classes by the `ɵɵCopyDefinitionFeature`.\n *\n * The type here allows any field of `ComponentDef` which is not also a property of `DirectiveDef`,\n * since those should go in `COPY_DIRECTIVE_FIELDS` above.\n */\nconst COPY_COMPONENT_FIELDS = [\n    // The child class should use the template function of its parent, including all template\n    // semantics.\n    'template',\n    'decls',\n    'consts',\n    'vars',\n    'onPush',\n    'ngContentSelectors',\n    // The child class should use the CSS styles of its parent, including all styling semantics.\n    'styles',\n    'encapsulation',\n    // The child class should be checked by the runtime in the same way as its parent.\n    'schemas',\n];\n/**\n * Copies the fields not handled by the `ɵɵInheritDefinitionFeature` from the supertype of a\n * definition.\n *\n * This exists primarily to support ngcc migration of an existing View Engine pattern, where an\n * entire decorator is inherited from a parent to a child class. When ngcc detects this case, it\n * generates a skeleton definition on the child class, and applies this feature.\n *\n * The `ɵɵCopyDefinitionFeature` then copies any needed fields from the parent class' definition,\n * including things like the component template function.\n *\n * @param definition The definition of a child class which inherits from a parent class with its\n * own definition.\n *\n * @codeGenApi\n */\nfunction ɵɵCopyDefinitionFeature(definition) {\n    let superType = getSuperType(definition.type);\n    let superDef = undefined;\n    if (isComponentDef(definition)) {\n        // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n        superDef = superType.ɵcmp;\n    }\n    else {\n        // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n        superDef = superType.ɵdir;\n    }\n    // Needed because `definition` fields are readonly.\n    const defAny = definition;\n    // Copy over any fields that apply to either directives or components.\n    for (const field of COPY_DIRECTIVE_FIELDS) {\n        defAny[field] = superDef[field];\n    }\n    if (isComponentDef(superDef)) {\n        // Copy over any component-specific fields.\n        for (const field of COPY_COMPONENT_FIELDS) {\n            defAny[field] = superDef[field];\n        }\n    }\n}\n\n/**\n * This feature adds the host directives behavior to a directive definition by patching a\n * function onto it. The expectation is that the runtime will invoke the function during\n * directive matching.\n *\n * For example:\n * ```ts\n * class ComponentWithHostDirective {\n *   static ɵcmp = defineComponent({\n *    type: ComponentWithHostDirective,\n *    features: [ɵɵHostDirectivesFeature([\n *      SimpleHostDirective,\n *      {directive: AdvancedHostDirective, inputs: ['foo: alias'], outputs: ['bar']},\n *    ])]\n *  });\n * }\n * ```\n *\n * @codeGenApi\n */\nfunction ɵɵHostDirectivesFeature(rawHostDirectives) {\n    return (definition) => {\n        definition.findHostDirectiveDefs = findHostDirectiveDefs;\n        definition.hostDirectives =\n            (Array.isArray(rawHostDirectives) ? rawHostDirectives : rawHostDirectives()).map(dir => {\n                return typeof dir === 'function' ?\n                    { directive: resolveForwardRef(dir), inputs: EMPTY_OBJ, outputs: EMPTY_OBJ } :\n                    {\n                        directive: resolveForwardRef(dir.directive),\n                        inputs: bindingArrayToMap(dir.inputs),\n                        outputs: bindingArrayToMap(dir.outputs)\n                    };\n            });\n    };\n}\nfunction findHostDirectiveDefs(currentDef, matchedDefs, hostDirectiveDefs) {\n    if (currentDef.hostDirectives !== null) {\n        for (const hostDirectiveConfig of currentDef.hostDirectives) {\n            const hostDirectiveDef = getDirectiveDef(hostDirectiveConfig.directive);\n            if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                validateHostDirective(hostDirectiveConfig, hostDirectiveDef, matchedDefs);\n            }\n            // We need to patch the `declaredInputs` so that\n            // `ngOnChanges` can map the properties correctly.\n            patchDeclaredInputs(hostDirectiveDef.declaredInputs, hostDirectiveConfig.inputs);\n            // Host directives execute before the host so that its host bindings can be overwritten.\n            findHostDirectiveDefs(hostDirectiveDef, matchedDefs, hostDirectiveDefs);\n            hostDirectiveDefs.set(hostDirectiveDef, hostDirectiveConfig);\n            matchedDefs.push(hostDirectiveDef);\n        }\n    }\n}\n/**\n * Converts an array in the form of `['publicName', 'alias', 'otherPublicName', 'otherAlias']` into\n * a map in the form of `{publicName: 'alias', otherPublicName: 'otherAlias'}`.\n */\nfunction bindingArrayToMap(bindings) {\n    if (bindings === undefined || bindings.length === 0) {\n        return EMPTY_OBJ;\n    }\n    const result = {};\n    for (let i = 0; i < bindings.length; i += 2) {\n        result[bindings[i]] = bindings[i + 1];\n    }\n    return result;\n}\n/**\n * `ngOnChanges` has some leftover legacy ViewEngine behavior where the keys inside the\n * `SimpleChanges` event refer to the *declared* name of the input, not its public name or its\n * minified name. E.g. in `@Input('alias') foo: string`, the name in the `SimpleChanges` object\n * will always be `foo`, and not `alias` or the minified name of `foo` in apps using property\n * minification.\n *\n * This is achieved through the `DirectiveDef.declaredInputs` map that is constructed when the\n * definition is declared. When a property is written to the directive instance, the\n * `NgOnChangesFeature` will try to remap the property name being written to using the\n * `declaredInputs`.\n *\n * Since the host directive input remapping happens during directive matching, `declaredInputs`\n * won't contain the new alias that the input is available under. This function addresses the\n * issue by patching the host directive aliases to the `declaredInputs`. There is *not* a risk of\n * this patching accidentally introducing new inputs to the host directive, because `declaredInputs`\n * is used *only* by the `NgOnChangesFeature` when determining what name is used in the\n * `SimpleChanges` object which won't be reached if an input doesn't exist.\n */\nfunction patchDeclaredInputs(declaredInputs, exposedInputs) {\n    for (const publicName in exposedInputs) {\n        if (exposedInputs.hasOwnProperty(publicName)) {\n            const remappedPublicName = exposedInputs[publicName];\n            const privateName = declaredInputs[publicName];\n            // We *technically* shouldn't be able to hit this case because we can't have multiple\n            // inputs on the same property and we have validations against conflicting aliases in\n            // `validateMappings`. If we somehow did, it would lead to `ngOnChanges` being invoked\n            // with the wrong name so we have a non-user-friendly assertion here just in case.\n            if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n                declaredInputs.hasOwnProperty(remappedPublicName)) {\n                assertEqual(declaredInputs[remappedPublicName], declaredInputs[publicName], `Conflicting host directive input alias ${publicName}.`);\n            }\n            declaredInputs[remappedPublicName] = privateName;\n        }\n    }\n}\n/**\n * Verifies that the host directive has been configured correctly.\n * @param hostDirectiveConfig Host directive configuration object.\n * @param directiveDef Directive definition of the host directive.\n * @param matchedDefs Directives that have been matched so far.\n */\nfunction validateHostDirective(hostDirectiveConfig, directiveDef, matchedDefs) {\n    const type = hostDirectiveConfig.directive;\n    if (directiveDef === null) {\n        if (getComponentDef(type) !== null) {\n            throw new RuntimeError(310 /* RuntimeErrorCode.HOST_DIRECTIVE_COMPONENT */, `Host directive ${type.name} cannot be a component.`);\n        }\n        throw new RuntimeError(307 /* RuntimeErrorCode.HOST_DIRECTIVE_UNRESOLVABLE */, `Could not resolve metadata for host directive ${type.name}. ` +\n            `Make sure that the ${type.name} class is annotated with an @Directive decorator.`);\n    }\n    if (!directiveDef.standalone) {\n        throw new RuntimeError(308 /* RuntimeErrorCode.HOST_DIRECTIVE_NOT_STANDALONE */, `Host directive ${directiveDef.type.name} must be standalone.`);\n    }\n    if (matchedDefs.indexOf(directiveDef) > -1) {\n        throw new RuntimeError(309 /* RuntimeErrorCode.DUPLICATE_DIRECTITVE */, `Directive ${directiveDef.type.name} matches multiple times on the same element. ` +\n            `Directives can only match an element once.`);\n    }\n    validateMappings('input', directiveDef, hostDirectiveConfig.inputs);\n    validateMappings('output', directiveDef, hostDirectiveConfig.outputs);\n}\n/**\n * Checks that the host directive inputs/outputs configuration is valid.\n * @param bindingType Kind of binding that is being validated. Used in the error message.\n * @param def Definition of the host directive that is being validated against.\n * @param hostDirectiveBindings Host directive mapping object that shold be validated.\n */\nfunction validateMappings(bindingType, def, hostDirectiveBindings) {\n    const className = def.type.name;\n    const bindings = bindingType === 'input' ? def.inputs : def.outputs;\n    for (const publicName in hostDirectiveBindings) {\n        if (hostDirectiveBindings.hasOwnProperty(publicName)) {\n            if (!bindings.hasOwnProperty(publicName)) {\n                throw new RuntimeError(311 /* RuntimeErrorCode.HOST_DIRECTIVE_UNDEFINED_BINDING */, `Directive ${className} does not have an ${bindingType} with a public name of ${publicName}.`);\n            }\n            const remappedPublicName = hostDirectiveBindings[publicName];\n            if (bindings.hasOwnProperty(remappedPublicName) && remappedPublicName !== publicName &&\n                bindings[remappedPublicName] !== publicName) {\n                throw new RuntimeError(312 /* RuntimeErrorCode.HOST_DIRECTIVE_CONFLICTING_ALIAS */, `Cannot alias ${bindingType} ${publicName} of host directive ${className} to ${remappedPublicName}, because it already has a different ${bindingType} with the same public name.`);\n            }\n        }\n    }\n}\n\n/**\n * Decorates the directive definition with support for input transform functions.\n *\n * If the directive uses inheritance, the feature should be included before the\n * `InheritDefinitionFeature` to ensure that the `inputTransforms` field is populated.\n *\n * @codeGenApi\n */\nfunction ɵɵInputTransformsFeature(definition) {\n    const inputs = definition.inputConfig;\n    const inputTransforms = {};\n    for (const minifiedKey in inputs) {\n        if (inputs.hasOwnProperty(minifiedKey)) {\n            // Note: the private names are used for the keys, rather than the public ones, because public\n            // names can be re-aliased in host directives which would invalidate the lookup.\n            const value = inputs[minifiedKey];\n            if (Array.isArray(value) && value[2]) {\n                inputTransforms[minifiedKey] = value[2];\n            }\n        }\n    }\n    definition.inputTransforms =\n        inputTransforms;\n}\n\nfunction isIterable(obj) {\n    return obj !== null && typeof obj === 'object' && obj[Symbol.iterator] !== undefined;\n}\nfunction isListLikeIterable(obj) {\n    if (!isJsObject(obj))\n        return false;\n    return Array.isArray(obj) ||\n        (!(obj instanceof Map) && // JS Map are iterables but return entries as [k, v]\n            Symbol.iterator in obj); // JS Iterable have a Symbol.iterator prop\n}\nfunction areIterablesEqual(a, b, comparator) {\n    const iterator1 = a[Symbol.iterator]();\n    const iterator2 = b[Symbol.iterator]();\n    while (true) {\n        const item1 = iterator1.next();\n        const item2 = iterator2.next();\n        if (item1.done && item2.done)\n            return true;\n        if (item1.done || item2.done)\n            return false;\n        if (!comparator(item1.value, item2.value))\n            return false;\n    }\n}\nfunction iterateListLike(obj, fn) {\n    if (Array.isArray(obj)) {\n        for (let i = 0; i < obj.length; i++) {\n            fn(obj[i]);\n        }\n    }\n    else {\n        const iterator = obj[Symbol.iterator]();\n        let item;\n        while (!((item = iterator.next()).done)) {\n            fn(item.value);\n        }\n    }\n}\nfunction isJsObject(o) {\n    return o !== null && (typeof o === 'function' || typeof o === 'object');\n}\n\nfunction devModeEqual(a, b) {\n    const isListLikeIterableA = isListLikeIterable(a);\n    const isListLikeIterableB = isListLikeIterable(b);\n    if (isListLikeIterableA && isListLikeIterableB) {\n        return areIterablesEqual(a, b, devModeEqual);\n    }\n    else {\n        const isAObject = a && (typeof a === 'object' || typeof a === 'function');\n        const isBObject = b && (typeof b === 'object' || typeof b === 'function');\n        if (!isListLikeIterableA && isAObject && !isListLikeIterableB && isBObject) {\n            return true;\n        }\n        else {\n            return Object.is(a, b);\n        }\n    }\n}\n\n// TODO(misko): consider inlining\n/** Updates binding and returns the value. */\nfunction updateBinding(lView, bindingIndex, value) {\n    return lView[bindingIndex] = value;\n}\n/** Gets the current binding value. */\nfunction getBinding(lView, bindingIndex) {\n    ngDevMode && assertIndexInRange(lView, bindingIndex);\n    ngDevMode &&\n        assertNotSame(lView[bindingIndex], NO_CHANGE, 'Stored value should never be NO_CHANGE.');\n    return lView[bindingIndex];\n}\n/**\n * Updates binding if changed, then returns whether it was updated.\n *\n * This function also checks the `CheckNoChangesMode` and throws if changes are made.\n * Some changes (Objects/iterables) during `CheckNoChangesMode` are exempt to comply with VE\n * behavior.\n *\n * @param lView current `LView`\n * @param bindingIndex The binding in the `LView` to check\n * @param value New value to check against `lView[bindingIndex]`\n * @returns `true` if the bindings has changed. (Throws if binding has changed during\n *          `CheckNoChangesMode`)\n */\nfunction bindingUpdated(lView, bindingIndex, value) {\n    ngDevMode && assertNotSame(value, NO_CHANGE, 'Incoming value should never be NO_CHANGE.');\n    ngDevMode &&\n        assertLessThan(bindingIndex, lView.length, `Slot should have been initialized to NO_CHANGE`);\n    const oldValue = lView[bindingIndex];\n    if (Object.is(oldValue, value)) {\n        return false;\n    }\n    else {\n        if (ngDevMode && isInCheckNoChangesMode()) {\n            // View engine didn't report undefined values as changed on the first checkNoChanges pass\n            // (before the change detection was run).\n            const oldValueToCompare = oldValue !== NO_CHANGE ? oldValue : undefined;\n            if (!devModeEqual(oldValueToCompare, value)) {\n                const details = getExpressionChangedErrorDetails(lView, bindingIndex, oldValueToCompare, value);\n                throwErrorIfNoChangesMode(oldValue === NO_CHANGE, details.oldValue, details.newValue, details.propName, lView);\n            }\n            // There was a change, but the `devModeEqual` decided that the change is exempt from an error.\n            // For this reason we exit as if no change. The early exit is needed to prevent the changed\n            // value to be written into `LView` (If we would write the new value that we would not see it\n            // as change on next CD.)\n            return false;\n        }\n        lView[bindingIndex] = value;\n        return true;\n    }\n}\n/** Updates 2 bindings if changed, then returns whether either was updated. */\nfunction bindingUpdated2(lView, bindingIndex, exp1, exp2) {\n    const different = bindingUpdated(lView, bindingIndex, exp1);\n    return bindingUpdated(lView, bindingIndex + 1, exp2) || different;\n}\n/** Updates 3 bindings if changed, then returns whether any was updated. */\nfunction bindingUpdated3(lView, bindingIndex, exp1, exp2, exp3) {\n    const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);\n    return bindingUpdated(lView, bindingIndex + 2, exp3) || different;\n}\n/** Updates 4 bindings if changed, then returns whether any was updated. */\nfunction bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4) {\n    const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);\n    return bindingUpdated2(lView, bindingIndex + 2, exp3, exp4) || different;\n}\n\n/**\n * Updates the value of or removes a bound attribute on an Element.\n *\n * Used in the case of `[attr.title]=\"value\"`\n *\n * @param name name The name of the attribute.\n * @param value value The attribute is removed when value is `null` or `undefined`.\n *                  Otherwise the attribute value is set to the stringified value.\n * @param sanitizer An optional function used to sanitize the value.\n * @param namespace Optional namespace to use when setting the attribute.\n *\n * @codeGenApi\n */\nfunction ɵɵattribute(name, value, sanitizer, namespace) {\n    const lView = getLView();\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, name, value, sanitizer, namespace);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, 'attr.' + name, bindingIndex);\n    }\n    return ɵɵattribute;\n}\n\n/**\n * Create interpolation bindings with a variable number of expressions.\n *\n * If there are 1 to 8 expressions `interpolation1()` to `interpolation8()` should be used instead.\n * Those are faster because there is no need to create an array of expressions and iterate over it.\n *\n * `values`:\n * - has static text at even indexes,\n * - has evaluated expressions at odd indexes.\n *\n * Returns the concatenated string when any of the arguments changes, `NO_CHANGE` otherwise.\n */\nfunction interpolationV(lView, values) {\n    ngDevMode && assertLessThan(2, values.length, 'should have at least 3 values');\n    ngDevMode && assertEqual(values.length % 2, 1, 'should have an odd number of values');\n    let isBindingUpdated = false;\n    let bindingIndex = getBindingIndex();\n    for (let i = 1; i < values.length; i += 2) {\n        // Check if bindings (odd indexes) have changed\n        isBindingUpdated = bindingUpdated(lView, bindingIndex++, values[i]) || isBindingUpdated;\n    }\n    setBindingIndex(bindingIndex);\n    if (!isBindingUpdated) {\n        return NO_CHANGE;\n    }\n    // Build the updated content\n    let content = values[0];\n    for (let i = 1; i < values.length; i += 2) {\n        content += renderStringify(values[i]) + values[i + 1];\n    }\n    return content;\n}\n/**\n * Creates an interpolation binding with 1 expression.\n *\n * @param prefix static value used for concatenation only.\n * @param v0 value checked for change.\n * @param suffix static value used for concatenation only.\n */\nfunction interpolation1(lView, prefix, v0, suffix) {\n    const different = bindingUpdated(lView, nextBindingIndex(), v0);\n    return different ? prefix + renderStringify(v0) + suffix : NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 2 expressions.\n */\nfunction interpolation2(lView, prefix, v0, i0, v1, suffix) {\n    const bindingIndex = getBindingIndex();\n    const different = bindingUpdated2(lView, bindingIndex, v0, v1);\n    incrementBindingIndex(2);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + suffix : NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 3 expressions.\n */\nfunction interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix) {\n    const bindingIndex = getBindingIndex();\n    const different = bindingUpdated3(lView, bindingIndex, v0, v1, v2);\n    incrementBindingIndex(3);\n    return different ?\n        prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + suffix :\n        NO_CHANGE;\n}\n/**\n * Create an interpolation binding with 4 expressions.\n */\nfunction interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    const bindingIndex = getBindingIndex();\n    const different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    incrementBindingIndex(4);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 5 expressions.\n */\nfunction interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    const bindingIndex = getBindingIndex();\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated(lView, bindingIndex + 4, v4) || different;\n    incrementBindingIndex(5);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + i3 + renderStringify(v4) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 6 expressions.\n */\nfunction interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    const bindingIndex = getBindingIndex();\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated2(lView, bindingIndex + 4, v4, v5) || different;\n    incrementBindingIndex(6);\n    return different ?\n        prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +\n            renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 7 expressions.\n */\nfunction interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    const bindingIndex = getBindingIndex();\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated3(lView, bindingIndex + 4, v4, v5, v6) || different;\n    incrementBindingIndex(7);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + i3 + renderStringify(v4) + i4 +\n        renderStringify(v5) + i5 + renderStringify(v6) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 8 expressions.\n */\nfunction interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    const bindingIndex = getBindingIndex();\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated4(lView, bindingIndex + 4, v4, v5, v6, v7) || different;\n    incrementBindingIndex(8);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + i3 + renderStringify(v4) + i4 +\n        renderStringify(v5) + i5 + renderStringify(v6) + i6 + renderStringify(v7) + suffix :\n        NO_CHANGE;\n}\n\n/**\n *\n * Update an interpolated attribute on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate1('title', 'prefix', v0, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate1(attrName, prefix, v0, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 1, prefix, suffix);\n    }\n    return ɵɵattributeInterpolate1;\n}\n/**\n *\n * Update an interpolated attribute on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate2('title', 'prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate2(attrName, prefix, v0, i0, v1, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 2, prefix, i0, suffix);\n    }\n    return ɵɵattributeInterpolate2;\n}\n/**\n *\n * Update an interpolated attribute on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate3(\n * 'title', 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate3(attrName, prefix, v0, i0, v1, i1, v2, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 3, prefix, i0, i1, suffix);\n    }\n    return ɵɵattributeInterpolate3;\n}\n/**\n *\n * Update an interpolated attribute on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate4(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate4(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 4, prefix, i0, i1, i2, suffix);\n    }\n    return ɵɵattributeInterpolate4;\n}\n/**\n *\n * Update an interpolated attribute on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate5(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate5(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 5, prefix, i0, i1, i2, i3, suffix);\n    }\n    return ɵɵattributeInterpolate5;\n}\n/**\n *\n * Update an interpolated attribute on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate6(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate6(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 6, prefix, i0, i1, i2, i3, i4, suffix);\n    }\n    return ɵɵattributeInterpolate6;\n}\n/**\n *\n * Update an interpolated attribute on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate7(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate7(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 7, prefix, i0, i1, i2, i3, i4, i5, suffix);\n    }\n    return ɵɵattributeInterpolate7;\n}\n/**\n *\n * Update an interpolated attribute on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate8(\n *  'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n *\n * @param attrName The name of the attribute to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param i6 Static value used for concatenation only.\n * @param v7 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolate8(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 8, prefix, i0, i1, i2, i3, i4, i5, i6, suffix);\n    }\n    return ɵɵattributeInterpolate8;\n}\n/**\n * Update an interpolated attribute on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolateV(\n *  'title', ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *\n * @param attrName The name of the attribute to update.\n * @param values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵattributeInterpolateV(attrName, values, sanitizer, namespace) {\n    const lView = getLView();\n    const interpolated = interpolationV(lView, values);\n    if (interpolated !== NO_CHANGE) {\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolated, sanitizer, namespace);\n        if (ngDevMode) {\n            const interpolationInBetween = [values[0]]; // prefix\n            for (let i = 2; i < values.length; i += 2) {\n                interpolationInBetween.push(values[i]);\n            }\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - interpolationInBetween.length + 1, ...interpolationInBetween);\n        }\n    }\n    return ɵɵattributeInterpolateV;\n}\n\nconst AT_THIS_LOCATION = '<-- AT THIS LOCATION';\n/**\n * Retrieves a user friendly string for a given TNodeType for use in\n * friendly error messages\n *\n * @param tNodeType\n * @returns\n */\nfunction getFriendlyStringFromTNodeType(tNodeType) {\n    switch (tNodeType) {\n        case 4 /* TNodeType.Container */:\n            return 'view container';\n        case 2 /* TNodeType.Element */:\n            return 'element';\n        case 8 /* TNodeType.ElementContainer */:\n            return 'ng-container';\n        case 32 /* TNodeType.Icu */:\n            return 'icu';\n        case 64 /* TNodeType.Placeholder */:\n            return 'i18n';\n        case 16 /* TNodeType.Projection */:\n            return 'projection';\n        case 1 /* TNodeType.Text */:\n            return 'text';\n        default:\n            // This should not happen as we cover all possible TNode types above.\n            return '<unknown>';\n    }\n}\n/**\n * Validates that provided nodes match during the hydration process.\n */\nfunction validateMatchingNode(node, nodeType, tagName, lView, tNode, isViewContainerAnchor = false) {\n    if (!node ||\n        (node.nodeType !== nodeType ||\n            (node.nodeType === Node.ELEMENT_NODE &&\n                node.tagName.toLowerCase() !== tagName?.toLowerCase()))) {\n        const expectedNode = shortRNodeDescription(nodeType, tagName, null);\n        let header = `During hydration Angular expected ${expectedNode} but `;\n        const hostComponentDef = getDeclarationComponentDef(lView);\n        const componentClassName = hostComponentDef?.type?.name;\n        const expected = `Angular expected this DOM:\\n\\n${describeExpectedDom(lView, tNode, isViewContainerAnchor)}\\n\\n`;\n        let actual = '';\n        if (!node) {\n            // No node found during hydration.\n            header += `the node was not found.\\n\\n`;\n        }\n        else {\n            const actualNode = shortRNodeDescription(node.nodeType, node.tagName ?? null, node.textContent ?? null);\n            header += `found ${actualNode}.\\n\\n`;\n            actual = `Actual DOM is:\\n\\n${describeDomFromNode(node)}\\n\\n`;\n        }\n        const footer = getHydrationErrorFooter(componentClassName);\n        const message = header + expected + actual + getHydrationAttributeNote() + footer;\n        throw new RuntimeError(-500 /* RuntimeErrorCode.HYDRATION_NODE_MISMATCH */, message);\n    }\n}\n/**\n * Validates that a given node has sibling nodes\n */\nfunction validateSiblingNodeExists(node) {\n    validateNodeExists(node);\n    if (!node.nextSibling) {\n        const header = 'During hydration Angular expected more sibling nodes to be present.\\n\\n';\n        const actual = `Actual DOM is:\\n\\n${describeDomFromNode(node)}\\n\\n`;\n        const footer = getHydrationErrorFooter();\n        const message = header + actual + footer;\n        throw new RuntimeError(-501 /* RuntimeErrorCode.HYDRATION_MISSING_SIBLINGS */, message);\n    }\n}\n/**\n * Validates that a node exists or throws\n */\nfunction validateNodeExists(node, lView = null, tNode = null) {\n    if (!node) {\n        const header = 'During hydration, Angular expected an element to be present at this location.\\n\\n';\n        let expected = '';\n        let footer = '';\n        if (lView !== null && tNode !== null) {\n            expected = `${describeExpectedDom(lView, tNode, false)}\\n\\n`;\n            footer = getHydrationErrorFooter();\n        }\n        throw new RuntimeError(-502 /* RuntimeErrorCode.HYDRATION_MISSING_NODE */, header + expected + footer);\n    }\n}\n/**\n * Builds the hydration error message when a node is not found\n *\n * @param lView the LView where the node exists\n * @param tNode the TNode\n */\nfunction nodeNotFoundError(lView, tNode) {\n    const header = 'During serialization, Angular was unable to find an element in the DOM:\\n\\n';\n    const expected = `${describeExpectedDom(lView, tNode, false)}\\n\\n`;\n    const footer = getHydrationErrorFooter();\n    throw new RuntimeError(-502 /* RuntimeErrorCode.HYDRATION_MISSING_NODE */, header + expected + footer);\n}\n/**\n * Builds a hydration error message when a node is not found at a path location\n *\n * @param host the Host Node\n * @param path the path to the node\n */\nfunction nodeNotFoundAtPathError(host, path) {\n    const header = `During hydration Angular was unable to locate a node ` +\n        `using the \"${path}\" path, starting from the ${describeRNode(host)} node.\\n\\n`;\n    const footer = getHydrationErrorFooter();\n    throw new RuntimeError(-502 /* RuntimeErrorCode.HYDRATION_MISSING_NODE */, header + footer);\n}\n/**\n * Builds the hydration error message in the case that dom nodes are created outside of\n * the Angular context and are being used as projected nodes\n *\n * @param lView the LView\n * @param tNode the TNode\n * @returns an error\n */\nfunction unsupportedProjectionOfDomNodes(rNode) {\n    const header = 'During serialization, Angular detected DOM nodes ' +\n        'that were created outside of Angular context and provided as projectable nodes ' +\n        '(likely via `ViewContainerRef.createComponent` or `createComponent` APIs). ' +\n        'Hydration is not supported for such cases, consider refactoring the code to avoid ' +\n        'this pattern or using `ngSkipHydration` on the host element of the component.\\n\\n';\n    const actual = `${describeDomFromNode(rNode)}\\n\\n`;\n    const message = header + actual + getHydrationAttributeNote();\n    return new RuntimeError(-503 /* RuntimeErrorCode.UNSUPPORTED_PROJECTION_DOM_NODES */, message);\n}\n/**\n * Builds the hydration error message in the case that ngSkipHydration was used on a\n * node that is not a component host element or host binding\n *\n * @param rNode the HTML Element\n * @returns an error\n */\nfunction invalidSkipHydrationHost(rNode) {\n    const header = 'The `ngSkipHydration` flag is applied on a node ' +\n        'that doesn\\'t act as a component host. Hydration can be ' +\n        'skipped only on per-component basis.\\n\\n';\n    const actual = `${describeDomFromNode(rNode)}\\n\\n`;\n    const footer = 'Please move the `ngSkipHydration` attribute to the component host element.\\n\\n';\n    const message = header + actual + footer;\n    return new RuntimeError(-504 /* RuntimeErrorCode.INVALID_SKIP_HYDRATION_HOST */, message);\n}\n// Stringification methods\n/**\n * Stringifies a given TNode's attributes\n *\n * @param tNode a provided TNode\n * @returns string\n */\nfunction stringifyTNodeAttrs(tNode) {\n    const results = [];\n    if (tNode.attrs) {\n        for (let i = 0; i < tNode.attrs.length;) {\n            const attrName = tNode.attrs[i++];\n            // Once we reach the first flag, we know that the list of\n            // attributes is over.\n            if (typeof attrName == 'number') {\n                break;\n            }\n            const attrValue = tNode.attrs[i++];\n            results.push(`${attrName}=\"${shorten(attrValue)}\"`);\n        }\n    }\n    return results.join(' ');\n}\n/**\n * The list of internal attributes that should be filtered out while\n * producing an error message.\n */\nconst internalAttrs = new Set(['ngh', 'ng-version', 'ng-server-context']);\n/**\n * Stringifies an HTML Element's attributes\n *\n * @param rNode an HTML Element\n * @returns string\n */\nfunction stringifyRNodeAttrs(rNode) {\n    const results = [];\n    for (let i = 0; i < rNode.attributes.length; i++) {\n        const attr = rNode.attributes[i];\n        if (internalAttrs.has(attr.name))\n            continue;\n        results.push(`${attr.name}=\"${shorten(attr.value)}\"`);\n    }\n    return results.join(' ');\n}\n// Methods for Describing the DOM\n/**\n * Converts a tNode to a helpful readable string value for use in error messages\n *\n * @param tNode a given TNode\n * @param innerContent the content of the node\n * @returns string\n */\nfunction describeTNode(tNode, innerContent = '…') {\n    switch (tNode.type) {\n        case 1 /* TNodeType.Text */:\n            const content = tNode.value ? `(${tNode.value})` : '';\n            return `#text${content}`;\n        case 2 /* TNodeType.Element */:\n            const attrs = stringifyTNodeAttrs(tNode);\n            const tag = tNode.value.toLowerCase();\n            return `<${tag}${attrs ? ' ' + attrs : ''}>${innerContent}</${tag}>`;\n        case 8 /* TNodeType.ElementContainer */:\n            return '<!-- ng-container -->';\n        case 4 /* TNodeType.Container */:\n            return '<!-- container -->';\n        default:\n            const typeAsString = getFriendlyStringFromTNodeType(tNode.type);\n            return `#node(${typeAsString})`;\n    }\n}\n/**\n * Converts an RNode to a helpful readable string value for use in error messages\n *\n * @param rNode a given RNode\n * @param innerContent the content of the node\n * @returns string\n */\nfunction describeRNode(rNode, innerContent = '…') {\n    const node = rNode;\n    switch (node.nodeType) {\n        case Node.ELEMENT_NODE:\n            const tag = node.tagName.toLowerCase();\n            const attrs = stringifyRNodeAttrs(node);\n            return `<${tag}${attrs ? ' ' + attrs : ''}>${innerContent}</${tag}>`;\n        case Node.TEXT_NODE:\n            const content = node.textContent ? shorten(node.textContent) : '';\n            return `#text${content ? `(${content})` : ''}`;\n        case Node.COMMENT_NODE:\n            return `<!-- ${shorten(node.textContent ?? '')} -->`;\n        default:\n            return `#node(${node.nodeType})`;\n    }\n}\n/**\n * Builds the string containing the expected DOM present given the LView and TNode\n * values for a readable error message\n *\n * @param lView the lView containing the DOM\n * @param tNode the tNode\n * @param isViewContainerAnchor boolean\n * @returns string\n */\nfunction describeExpectedDom(lView, tNode, isViewContainerAnchor) {\n    const spacer = '  ';\n    let content = '';\n    if (tNode.prev) {\n        content += spacer + '…\\n';\n        content += spacer + describeTNode(tNode.prev) + '\\n';\n    }\n    else if (tNode.type && tNode.type & 12 /* TNodeType.AnyContainer */) {\n        content += spacer + '…\\n';\n    }\n    if (isViewContainerAnchor) {\n        content += spacer + describeTNode(tNode) + '\\n';\n        content += spacer + `<!-- container -->  ${AT_THIS_LOCATION}\\n`;\n    }\n    else {\n        content += spacer + describeTNode(tNode) + `  ${AT_THIS_LOCATION}\\n`;\n    }\n    content += spacer + '…\\n';\n    const parentRNode = tNode.type ? getParentRElement(lView[TVIEW], tNode, lView) : null;\n    if (parentRNode) {\n        content = describeRNode(parentRNode, '\\n' + content);\n    }\n    return content;\n}\n/**\n * Builds the string containing the DOM present around a given RNode for a\n * readable error message\n *\n * @param node the RNode\n * @returns string\n */\nfunction describeDomFromNode(node) {\n    const spacer = '  ';\n    let content = '';\n    const currentNode = node;\n    if (currentNode.previousSibling) {\n        content += spacer + '…\\n';\n        content += spacer + describeRNode(currentNode.previousSibling) + '\\n';\n    }\n    content += spacer + describeRNode(currentNode) + `  ${AT_THIS_LOCATION}\\n`;\n    if (node.nextSibling) {\n        content += spacer + '…\\n';\n    }\n    if (node.parentNode) {\n        content = describeRNode(currentNode.parentNode, '\\n' + content);\n    }\n    return content;\n}\n/**\n * Shortens the description of a given RNode by its type for readability\n *\n * @param nodeType the type of node\n * @param tagName the node tag name\n * @param textContent the text content in the node\n * @returns string\n */\nfunction shortRNodeDescription(nodeType, tagName, textContent) {\n    switch (nodeType) {\n        case Node.ELEMENT_NODE:\n            return `<${tagName.toLowerCase()}>`;\n        case Node.TEXT_NODE:\n            const content = textContent ? ` (with the \"${shorten(textContent)}\" content)` : '';\n            return `a text node${content}`;\n        case Node.COMMENT_NODE:\n            return 'a comment node';\n        default:\n            return `#node(nodeType=${nodeType})`;\n    }\n}\n/**\n * Builds the footer hydration error message\n *\n * @param componentClassName the name of the component class\n * @returns string\n */\nfunction getHydrationErrorFooter(componentClassName) {\n    const componentInfo = componentClassName ? `the \"${componentClassName}\"` : 'corresponding';\n    return `To fix this problem:\\n` +\n        `  * check ${componentInfo} component for hydration-related issues\\n` +\n        `  * check to see if your template has valid HTML structure\\n` +\n        `  * or skip hydration by adding the \\`ngSkipHydration\\` attribute ` +\n        `to its host node in a template\\n\\n`;\n}\n/**\n * An attribute related note for hydration errors\n */\nfunction getHydrationAttributeNote() {\n    return 'Note: attributes are only displayed to better represent the DOM' +\n        ' but have no effect on hydration mismatches.\\n\\n';\n}\n// Node string utility functions\n/**\n * Strips all newlines out of a given string\n *\n * @param input a string to be cleared of new line characters\n * @returns\n */\nfunction stripNewlines(input) {\n    return input.replace(/\\s+/gm, '');\n}\n/**\n * Reduces a string down to a maximum length of characters with ellipsis for readability\n *\n * @param input a string input\n * @param maxLength a maximum length in characters\n * @returns string\n */\nfunction shorten(input, maxLength = 50) {\n    if (!input) {\n        return '';\n    }\n    input = stripNewlines(input);\n    return input.length > maxLength ? `${input.substring(0, maxLength - 1)}…` : input;\n}\n\n/**\n * Regexp that extracts a reference node information from the compressed node location.\n * The reference node is represented as either:\n *  - a number which points to an LView slot\n *  - the `b` char which indicates that the lookup should start from the `document.body`\n *  - the `h` char to start lookup from the component host node (`lView[HOST]`)\n */\nconst REF_EXTRACTOR_REGEXP = new RegExp(`^(\\\\d+)*(${REFERENCE_NODE_BODY}|${REFERENCE_NODE_HOST})*(.*)`);\n/**\n * Helper function that takes a reference node location and a set of navigation steps\n * (from the reference node) to a target node and outputs a string that represents\n * a location.\n *\n * For example, given: referenceNode = 'b' (body) and path = ['firstChild', 'firstChild',\n * 'nextSibling'], the function returns: `bf2n`.\n */\nfunction compressNodeLocation(referenceNode, path) {\n    const result = [referenceNode];\n    for (const segment of path) {\n        const lastIdx = result.length - 1;\n        if (lastIdx > 0 && result[lastIdx - 1] === segment) {\n            // An empty string in a count slot represents 1 occurrence of an instruction.\n            const value = (result[lastIdx] || 1);\n            result[lastIdx] = value + 1;\n        }\n        else {\n            // Adding a new segment to the path.\n            // Using an empty string in a counter field to avoid encoding `1`s\n            // into the path, since they are implicit (e.g. `f1n1` vs `fn`), so\n            // it's enough to have a single char in this case.\n            result.push(segment, '');\n        }\n    }\n    return result.join('');\n}\n/**\n * Helper function that reverts the `compressNodeLocation` and transforms a given\n * string into an array where at 0th position there is a reference node info and\n * after that it contains information (in pairs) about a navigation step and the\n * number of repetitions.\n *\n * For example, the path like 'bf2n' will be transformed to:\n * ['b', 'firstChild', 2, 'nextSibling', 1].\n *\n * This information is later consumed by the code that navigates the DOM to find\n * a given node by its location.\n */\nfunction decompressNodeLocation(path) {\n    const matches = path.match(REF_EXTRACTOR_REGEXP);\n    const [_, refNodeId, refNodeName, rest] = matches;\n    // If a reference node is represented by an index, transform it to a number.\n    const ref = refNodeId ? parseInt(refNodeId, 10) : refNodeName;\n    const steps = [];\n    // Match all segments in a path.\n    for (const [_, step, count] of rest.matchAll(/(f|n)(\\d*)/g)) {\n        const repeat = parseInt(count, 10) || 1;\n        steps.push(step, repeat);\n    }\n    return [ref, ...steps];\n}\n\n/** Whether current TNode is a first node in an <ng-container>. */\nfunction isFirstElementInNgContainer(tNode) {\n    return !tNode.prev && tNode.parent?.type === 8 /* TNodeType.ElementContainer */;\n}\n/** Returns an instruction index (subtracting HEADER_OFFSET). */\nfunction getNoOffsetIndex(tNode) {\n    return tNode.index - HEADER_OFFSET;\n}\n/**\n * Locate a node in DOM tree that corresponds to a given TNode.\n *\n * @param hydrationInfo The hydration annotation data\n * @param tView the current tView\n * @param lView the current lView\n * @param tNode the current tNode\n * @returns an RNode that represents a given tNode\n */\nfunction locateNextRNode(hydrationInfo, tView, lView, tNode) {\n    let native = null;\n    const noOffsetIndex = getNoOffsetIndex(tNode);\n    const nodes = hydrationInfo.data[NODES];\n    if (nodes?.[noOffsetIndex]) {\n        // We know the exact location of the node.\n        native = locateRNodeByPath(nodes[noOffsetIndex], lView);\n    }\n    else if (tView.firstChild === tNode) {\n        // We create a first node in this view, so we use a reference\n        // to the first child in this DOM segment.\n        native = hydrationInfo.firstChild;\n    }\n    else {\n        // Locate a node based on a previous sibling or a parent node.\n        const previousTNodeParent = tNode.prev === null;\n        const previousTNode = (tNode.prev ?? tNode.parent);\n        ngDevMode &&\n            assertDefined(previousTNode, 'Unexpected state: current TNode does not have a connection ' +\n                'to the previous node or a parent node.');\n        if (isFirstElementInNgContainer(tNode)) {\n            const noOffsetParentIndex = getNoOffsetIndex(tNode.parent);\n            native = getSegmentHead(hydrationInfo, noOffsetParentIndex);\n        }\n        else {\n            let previousRElement = getNativeByTNode(previousTNode, lView);\n            if (previousTNodeParent) {\n                native = previousRElement.firstChild;\n            }\n            else {\n                // If the previous node is an element, but it also has container info,\n                // this means that we are processing a node like `<div #vcrTarget>`, which is\n                // represented in the DOM as `<div></div>...<!--container-->`.\n                // In this case, there are nodes *after* this element and we need to skip\n                // all of them to reach an element that we are looking for.\n                const noOffsetPrevSiblingIndex = getNoOffsetIndex(previousTNode);\n                const segmentHead = getSegmentHead(hydrationInfo, noOffsetPrevSiblingIndex);\n                if (previousTNode.type === 2 /* TNodeType.Element */ && segmentHead) {\n                    const numRootNodesToSkip = calcSerializedContainerSize(hydrationInfo, noOffsetPrevSiblingIndex);\n                    // `+1` stands for an anchor comment node after all the views in this container.\n                    const nodesToSkip = numRootNodesToSkip + 1;\n                    // First node after this segment.\n                    native = siblingAfter(nodesToSkip, segmentHead);\n                }\n                else {\n                    native = previousRElement.nextSibling;\n                }\n            }\n        }\n    }\n    return native;\n}\n/**\n * Skips over a specified number of nodes and returns the next sibling node after that.\n */\nfunction siblingAfter(skip, from) {\n    let currentNode = from;\n    for (let i = 0; i < skip; i++) {\n        ngDevMode && validateSiblingNodeExists(currentNode);\n        currentNode = currentNode.nextSibling;\n    }\n    return currentNode;\n}\n/**\n * Helper function to produce a string representation of the navigation steps\n * (in terms of `nextSibling` and `firstChild` navigations). Used in error\n * messages in dev mode.\n */\nfunction stringifyNavigationInstructions(instructions) {\n    const container = [];\n    for (let i = 0; i < instructions.length; i += 2) {\n        const step = instructions[i];\n        const repeat = instructions[i + 1];\n        for (let r = 0; r < repeat; r++) {\n            container.push(step === NodeNavigationStep.FirstChild ? 'firstChild' : 'nextSibling');\n        }\n    }\n    return container.join('.');\n}\n/**\n * Helper function that navigates from a starting point node (the `from` node)\n * using provided set of navigation instructions (within `path` argument).\n */\nfunction navigateToNode(from, instructions) {\n    let node = from;\n    for (let i = 0; i < instructions.length; i += 2) {\n        const step = instructions[i];\n        const repeat = instructions[i + 1];\n        for (let r = 0; r < repeat; r++) {\n            if (ngDevMode && !node) {\n                throw nodeNotFoundAtPathError(from, stringifyNavigationInstructions(instructions));\n            }\n            switch (step) {\n                case NodeNavigationStep.FirstChild:\n                    node = node.firstChild;\n                    break;\n                case NodeNavigationStep.NextSibling:\n                    node = node.nextSibling;\n                    break;\n            }\n        }\n    }\n    if (ngDevMode && !node) {\n        throw nodeNotFoundAtPathError(from, stringifyNavigationInstructions(instructions));\n    }\n    return node;\n}\n/**\n * Locates an RNode given a set of navigation instructions (which also contains\n * a starting point node info).\n */\nfunction locateRNodeByPath(path, lView) {\n    const [referenceNode, ...navigationInstructions] = decompressNodeLocation(path);\n    let ref;\n    if (referenceNode === REFERENCE_NODE_HOST) {\n        ref = lView[DECLARATION_COMPONENT_VIEW][HOST];\n    }\n    else if (referenceNode === REFERENCE_NODE_BODY) {\n        ref = ɵɵresolveBody(lView[DECLARATION_COMPONENT_VIEW][HOST]);\n    }\n    else {\n        const parentElementId = Number(referenceNode);\n        ref = unwrapRNode(lView[parentElementId + HEADER_OFFSET]);\n    }\n    return navigateToNode(ref, navigationInstructions);\n}\n/**\n * Generate a list of DOM navigation operations to get from node `start` to node `finish`.\n *\n * Note: assumes that node `start` occurs before node `finish` in an in-order traversal of the DOM\n * tree. That is, we should be able to get from `start` to `finish` purely by using `.firstChild`\n * and `.nextSibling` operations.\n */\nfunction navigateBetween(start, finish) {\n    if (start === finish) {\n        return [];\n    }\n    else if (start.parentElement == null || finish.parentElement == null) {\n        return null;\n    }\n    else if (start.parentElement === finish.parentElement) {\n        return navigateBetweenSiblings(start, finish);\n    }\n    else {\n        // `finish` is a child of its parent, so the parent will always have a child.\n        const parent = finish.parentElement;\n        const parentPath = navigateBetween(start, parent);\n        const childPath = navigateBetween(parent.firstChild, finish);\n        if (!parentPath || !childPath)\n            return null;\n        return [\n            // First navigate to `finish`'s parent\n            ...parentPath,\n            // Then to its first child.\n            NodeNavigationStep.FirstChild,\n            // And finally from that node to `finish` (maybe a no-op if we're already there).\n            ...childPath,\n        ];\n    }\n}\n/**\n * Calculates a path between 2 sibling nodes (generates a number of `NextSibling` navigations).\n * Returns `null` if no such path exists between the given nodes.\n */\nfunction navigateBetweenSiblings(start, finish) {\n    const nav = [];\n    let node = null;\n    for (node = start; node != null && node !== finish; node = node.nextSibling) {\n        nav.push(NodeNavigationStep.NextSibling);\n    }\n    // If the `node` becomes `null` or `undefined` at the end, that means that we\n    // didn't find the `end` node, thus return `null` (which would trigger serialization\n    // error to be produced).\n    return node == null ? null : nav;\n}\n/**\n * Calculates a path between 2 nodes in terms of `nextSibling` and `firstChild`\n * navigations:\n * - the `from` node is a known node, used as an starting point for the lookup\n *   (the `fromNodeName` argument is a string representation of the node).\n * - the `to` node is a node that the runtime logic would be looking up,\n *   using the path generated by this function.\n */\nfunction calcPathBetween(from, to, fromNodeName) {\n    const path = navigateBetween(from, to);\n    return path === null ? null : compressNodeLocation(fromNodeName, path);\n}\n/**\n * Invoked at serialization time (on the server) when a set of navigation\n * instructions needs to be generated for a TNode.\n */\nfunction calcPathForNode(tNode, lView) {\n    const parentTNode = tNode.parent;\n    let parentIndex;\n    let parentRNode;\n    let referenceNodeName;\n    if (parentTNode === null || !(parentTNode.type & 3 /* TNodeType.AnyRNode */)) {\n        // If there is no parent TNode or a parent TNode does not represent an RNode\n        // (i.e. not a DOM node), use component host element as a reference node.\n        parentIndex = referenceNodeName = REFERENCE_NODE_HOST;\n        parentRNode = lView[DECLARATION_COMPONENT_VIEW][HOST];\n    }\n    else {\n        // Use parent TNode as a reference node.\n        parentIndex = parentTNode.index;\n        parentRNode = unwrapRNode(lView[parentIndex]);\n        referenceNodeName = renderStringify(parentIndex - HEADER_OFFSET);\n    }\n    let rNode = unwrapRNode(lView[tNode.index]);\n    if (tNode.type & 12 /* TNodeType.AnyContainer */) {\n        // For <ng-container> nodes, instead of serializing a reference\n        // to the anchor comment node, serialize a location of the first\n        // DOM element. Paired with the container size (serialized as a part\n        // of `ngh.containers`), it should give enough information for runtime\n        // to hydrate nodes in this container.\n        const firstRNode = getFirstNativeNode(lView, tNode);\n        // If container is not empty, use a reference to the first element,\n        // otherwise, rNode would point to an anchor comment node.\n        if (firstRNode) {\n            rNode = firstRNode;\n        }\n    }\n    let path = calcPathBetween(parentRNode, rNode, referenceNodeName);\n    if (path === null && parentRNode !== rNode) {\n        // Searching for a path between elements within a host node failed.\n        // Trying to find a path to an element starting from the `document.body` instead.\n        //\n        // Important note: this type of reference is relatively unstable, since Angular\n        // may not be able to control parts of the page that the runtime logic navigates\n        // through. This is mostly needed to cover \"portals\" use-case (like menus, dialog boxes,\n        // etc), where nodes are content-projected (including direct DOM manipulations) outside\n        // of the host node. The better solution is to provide APIs to work with \"portals\",\n        // at which point this code path would not be needed.\n        const body = parentRNode.ownerDocument.body;\n        path = calcPathBetween(body, rNode, REFERENCE_NODE_BODY);\n        if (path === null) {\n            // If the path is still empty, it's likely that this node is detached and\n            // won't be found during hydration.\n            throw nodeNotFoundError(lView, tNode);\n        }\n    }\n    return path;\n}\n\nfunction templateFirstCreatePass(index, tView, lView, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode && ngDevMode.firstCreatePass++;\n    const tViewConsts = tView.consts;\n    // TODO(pk): refactor getOrCreateTNode to have the \"create\" only version\n    const tNode = getOrCreateTNode(tView, index, 4 /* TNodeType.Container */, tagName || null, getConstant(tViewConsts, attrsIndex));\n    resolveDirectives(tView, lView, tNode, getConstant(tViewConsts, localRefsIndex));\n    registerPostOrderHooks(tView, tNode);\n    const embeddedTView = tNode.tView = createTView(2 /* TViewType.Embedded */, tNode, templateFn, decls, vars, tView.directiveRegistry, tView.pipeRegistry, null, tView.schemas, tViewConsts, null /* ssrId */);\n    if (tView.queries !== null) {\n        tView.queries.template(tView, tNode);\n        embeddedTView.queries = tView.queries.embeddedTView(tNode);\n    }\n    return tNode;\n}\n/**\n * Creates an LContainer for an ng-template (dynamically-inserted view), e.g.\n *\n * <ng-template #foo>\n *    <div></div>\n * </ng-template>\n *\n * @param index The index of the container in the data array\n * @param templateFn Inline template\n * @param decls The number of nodes, local refs, and pipes for this template\n * @param vars The number of bindings for this template\n * @param tagName The name of the container element, if applicable\n * @param attrsIndex Index of template attributes in the `consts` array.\n * @param localRefs Index of the local references in the `consts` array.\n * @param localRefExtractor A function which extracts local-refs values from the template.\n *        Defaults to the current element associated with the local-ref.\n *\n * @codeGenApi\n */\nfunction ɵɵtemplate(index, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex, localRefExtractor) {\n    const lView = getLView();\n    const tView = getTView();\n    const adjustedIndex = index + HEADER_OFFSET;\n    const tNode = tView.firstCreatePass ? templateFirstCreatePass(adjustedIndex, tView, lView, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex) :\n        tView.data[adjustedIndex];\n    setCurrentTNode(tNode, false);\n    const comment = _locateOrCreateContainerAnchor(tView, lView, tNode, index);\n    if (wasLastNodeCreated()) {\n        appendChild(tView, lView, comment, tNode);\n    }\n    attachPatchData(comment, lView);\n    addToViewTree(lView, lView[adjustedIndex] = createLContainer(comment, lView, comment, tNode));\n    if (isDirectiveHost(tNode)) {\n        createDirectivesInstances(tView, lView, tNode);\n    }\n    if (localRefsIndex != null) {\n        saveResolvedLocalsInData(lView, tNode, localRefExtractor);\n    }\n}\nlet _locateOrCreateContainerAnchor = createContainerAnchorImpl;\n/**\n * Regular creation mode for LContainers and their anchor (comment) nodes.\n */\nfunction createContainerAnchorImpl(tView, lView, tNode, index) {\n    lastNodeWasCreated(true);\n    return lView[RENDERER].createComment(ngDevMode ? 'container' : '');\n}\n/**\n * Enables hydration code path (to lookup existing elements in DOM)\n * in addition to the regular creation mode for LContainers and their\n * anchor (comment) nodes.\n */\nfunction locateOrCreateContainerAnchorImpl(tView, lView, tNode, index) {\n    const hydrationInfo = lView[HYDRATION];\n    const isNodeCreationMode = !hydrationInfo || isInSkipHydrationBlock$1() || isDisconnectedNode$1(hydrationInfo, index);\n    lastNodeWasCreated(isNodeCreationMode);\n    // Regular creation mode.\n    if (isNodeCreationMode) {\n        return createContainerAnchorImpl(tView, lView, tNode, index);\n    }\n    const ssrId = hydrationInfo.data[TEMPLATES]?.[index] ?? null;\n    // Apply `ssrId` value to the underlying TView if it was not previously set.\n    //\n    // There might be situations when the same component is present in a template\n    // multiple times and some instances are opted-out of using hydration via\n    // `ngSkipHydration` attribute. In this scenario, at the time a TView is created,\n    // the `ssrId` might be `null` (if the first component is opted-out of hydration).\n    // The code below makes sure that the `ssrId` is applied to the TView if it's still\n    // `null` and verifies we never try to override it with a different value.\n    if (ssrId !== null && tNode.tView !== null) {\n        if (tNode.tView.ssrId === null) {\n            tNode.tView.ssrId = ssrId;\n        }\n        else {\n            ngDevMode &&\n                assertEqual(tNode.tView.ssrId, ssrId, 'Unexpected value of the `ssrId` for this TView');\n        }\n    }\n    // Hydration mode, looking up existing elements in DOM.\n    const currentRNode = locateNextRNode(hydrationInfo, tView, lView, tNode);\n    ngDevMode && validateNodeExists(currentRNode, lView, tNode);\n    setSegmentHead(hydrationInfo, index, currentRNode);\n    const viewContainerSize = calcSerializedContainerSize(hydrationInfo, index);\n    const comment = siblingAfter(viewContainerSize, currentRNode);\n    if (ngDevMode) {\n        validateMatchingNode(comment, Node.COMMENT_NODE, null, lView, tNode);\n        markRNodeAsClaimedByHydration(comment);\n    }\n    return comment;\n}\nfunction enableLocateOrCreateContainerAnchorImpl() {\n    _locateOrCreateContainerAnchor = locateOrCreateContainerAnchorImpl;\n}\n\n/** Store a value in the `data` at a given `index`. */\nfunction store(tView, lView, index, value) {\n    // We don't store any static data for local variables, so the first time\n    // we see the template, we should store as null to avoid a sparse array\n    if (index >= tView.data.length) {\n        tView.data[index] = null;\n        tView.blueprint[index] = null;\n    }\n    lView[index] = value;\n}\n/**\n * Retrieves a local reference from the current contextViewData.\n *\n * If the reference to retrieve is in a parent view, this instruction is used in conjunction\n * with a nextContext() call, which walks up the tree and updates the contextViewData instance.\n *\n * @param index The index of the local ref in contextViewData.\n *\n * @codeGenApi\n */\nfunction ɵɵreference(index) {\n    const contextLView = getContextLView();\n    return load(contextLView, HEADER_OFFSET + index);\n}\n\n/**\n * Update a property on a selected element.\n *\n * Operates on the element selected by index via the {@link select} instruction.\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled\n *\n * @param propName Name of property. Because it is going to DOM, this is not subject to\n *        renaming as part of minification.\n * @param value New value to write.\n * @param sanitizer An optional function used to sanitize the value.\n * @returns This function returns itself so that it may be chained\n * (e.g. `property('name', ctx.name)('title', ctx.title)`)\n *\n * @codeGenApi\n */\nfunction ɵɵproperty(propName, value, sanitizer) {\n    const lView = getLView();\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, value, lView[RENDERER], sanitizer, false);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, propName, bindingIndex);\n    }\n    return ɵɵproperty;\n}\n/**\n * Given `<div style=\"...\" my-dir>` and `MyDir` with `@Input('style')` we need to write to\n * directive input.\n */\nfunction setDirectiveInputsWhichShadowsStyling(tView, tNode, lView, value, isClassBased) {\n    const inputs = tNode.inputs;\n    const property = isClassBased ? 'class' : 'style';\n    // We support both 'class' and `className` hence the fallback.\n    setInputsForProperty(tView, lView, inputs[property], property, value);\n}\n\nfunction elementStartFirstCreatePass(index, tView, lView, name, attrsIndex, localRefsIndex) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode && ngDevMode.firstCreatePass++;\n    const tViewConsts = tView.consts;\n    const attrs = getConstant(tViewConsts, attrsIndex);\n    const tNode = getOrCreateTNode(tView, index, 2 /* TNodeType.Element */, name, attrs);\n    resolveDirectives(tView, lView, tNode, getConstant(tViewConsts, localRefsIndex));\n    if (tNode.attrs !== null) {\n        computeStaticStyling(tNode, tNode.attrs, false);\n    }\n    if (tNode.mergedAttrs !== null) {\n        computeStaticStyling(tNode, tNode.mergedAttrs, true);\n    }\n    if (tView.queries !== null) {\n        tView.queries.elementStart(tView, tNode);\n    }\n    return tNode;\n}\n/**\n * Create DOM element. The instruction must later be followed by `elementEnd()` call.\n *\n * @param index Index of the element in the LView array\n * @param name Name of the DOM Node\n * @param attrsIndex Index of the element's attributes in the `consts` array.\n * @param localRefsIndex Index of the element's local references in the `consts` array.\n * @returns This function returns itself so that it may be chained.\n *\n * Attributes and localRefs are passed as an array of strings where elements with an even index\n * hold an attribute name and elements with an odd index hold an attribute value, ex.:\n * ['id', 'warning5', 'class', 'alert']\n *\n * @codeGenApi\n */\nfunction ɵɵelementStart(index, name, attrsIndex, localRefsIndex) {\n    const lView = getLView();\n    const tView = getTView();\n    const adjustedIndex = HEADER_OFFSET + index;\n    ngDevMode &&\n        assertEqual(getBindingIndex(), tView.bindingStartIndex, 'elements should be created before any bindings');\n    ngDevMode && assertIndexInRange(lView, adjustedIndex);\n    const renderer = lView[RENDERER];\n    const tNode = tView.firstCreatePass ?\n        elementStartFirstCreatePass(adjustedIndex, tView, lView, name, attrsIndex, localRefsIndex) :\n        tView.data[adjustedIndex];\n    const native = _locateOrCreateElementNode(tView, lView, tNode, renderer, name, index);\n    lView[adjustedIndex] = native;\n    const hasDirectives = isDirectiveHost(tNode);\n    if (ngDevMode && tView.firstCreatePass) {\n        validateElementIsKnown(native, lView, tNode.value, tView.schemas, hasDirectives);\n    }\n    setCurrentTNode(tNode, true);\n    setupStaticAttributes(renderer, native, tNode);\n    if ((tNode.flags & 32 /* TNodeFlags.isDetached */) !== 32 /* TNodeFlags.isDetached */ && wasLastNodeCreated()) {\n        // In the i18n case, the translation may have removed this element, so only add it if it is not\n        // detached. See `TNodeType.Placeholder` and `LFrame.inI18n` for more context.\n        appendChild(tView, lView, native, tNode);\n    }\n    // any immediate children of a component or template container must be pre-emptively\n    // monkey-patched with the component view data so that the element can be inspected\n    // later on using any element discovery utility methods (see `element_discovery.ts`)\n    if (getElementDepthCount() === 0) {\n        attachPatchData(native, lView);\n    }\n    increaseElementDepthCount();\n    if (hasDirectives) {\n        createDirectivesInstances(tView, lView, tNode);\n        executeContentQueries(tView, tNode, lView);\n    }\n    if (localRefsIndex !== null) {\n        saveResolvedLocalsInData(lView, tNode);\n    }\n    return ɵɵelementStart;\n}\n/**\n * Mark the end of the element.\n * @returns This function returns itself so that it may be chained.\n *\n * @codeGenApi\n */\nfunction ɵɵelementEnd() {\n    let currentTNode = getCurrentTNode();\n    ngDevMode && assertDefined(currentTNode, 'No parent node to close.');\n    if (isCurrentTNodeParent()) {\n        setCurrentTNodeAsNotParent();\n    }\n    else {\n        ngDevMode && assertHasParent(getCurrentTNode());\n        currentTNode = currentTNode.parent;\n        setCurrentTNode(currentTNode, false);\n    }\n    const tNode = currentTNode;\n    ngDevMode && assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */);\n    if (isSkipHydrationRootTNode(tNode)) {\n        leaveSkipHydrationBlock();\n    }\n    decreaseElementDepthCount();\n    const tView = getTView();\n    if (tView.firstCreatePass) {\n        registerPostOrderHooks(tView, currentTNode);\n        if (isContentQueryHost(currentTNode)) {\n            tView.queries.elementEnd(currentTNode);\n        }\n    }\n    if (tNode.classesWithoutHost != null && hasClassInput(tNode)) {\n        setDirectiveInputsWhichShadowsStyling(tView, tNode, getLView(), tNode.classesWithoutHost, true);\n    }\n    if (tNode.stylesWithoutHost != null && hasStyleInput(tNode)) {\n        setDirectiveInputsWhichShadowsStyling(tView, tNode, getLView(), tNode.stylesWithoutHost, false);\n    }\n    return ɵɵelementEnd;\n}\n/**\n * Creates an empty element using {@link elementStart} and {@link elementEnd}\n *\n * @param index Index of the element in the data array\n * @param name Name of the DOM Node\n * @param attrsIndex Index of the element's attributes in the `consts` array.\n * @param localRefsIndex Index of the element's local references in the `consts` array.\n * @returns This function returns itself so that it may be chained.\n *\n * @codeGenApi\n */\nfunction ɵɵelement(index, name, attrsIndex, localRefsIndex) {\n    ɵɵelementStart(index, name, attrsIndex, localRefsIndex);\n    ɵɵelementEnd();\n    return ɵɵelement;\n}\nlet _locateOrCreateElementNode = (tView, lView, tNode, renderer, name, index) => {\n    lastNodeWasCreated(true);\n    return createElementNode(renderer, name, getNamespace$1());\n};\n/**\n * Enables hydration code path (to lookup existing elements in DOM)\n * in addition to the regular creation mode of element nodes.\n */\nfunction locateOrCreateElementNodeImpl(tView, lView, tNode, renderer, name, index) {\n    const hydrationInfo = lView[HYDRATION];\n    const isNodeCreationMode = !hydrationInfo || isInSkipHydrationBlock$1() || isDisconnectedNode$1(hydrationInfo, index);\n    lastNodeWasCreated(isNodeCreationMode);\n    // Regular creation mode.\n    if (isNodeCreationMode) {\n        return createElementNode(renderer, name, getNamespace$1());\n    }\n    // Hydration mode, looking up an existing element in DOM.\n    const native = locateNextRNode(hydrationInfo, tView, lView, tNode);\n    ngDevMode && validateMatchingNode(native, Node.ELEMENT_NODE, name, lView, tNode);\n    ngDevMode && markRNodeAsClaimedByHydration(native);\n    // This element might also be an anchor of a view container.\n    if (getSerializedContainerViews(hydrationInfo, index)) {\n        // Important note: this element acts as an anchor, but it's **not** a part\n        // of the embedded view, so we start the segment **after** this element, taking\n        // a reference to the next sibling. For example, the following template:\n        // `<div #vcrTarget>` is represented in the DOM as `<div></div>...<!--container-->`,\n        // so while processing a `<div>` instruction, point to the next sibling as a\n        // start of a segment.\n        ngDevMode && validateNodeExists(native.nextSibling, lView, tNode);\n        setSegmentHead(hydrationInfo, index, native.nextSibling);\n    }\n    // Checks if the skip hydration attribute is present during hydration so we know to\n    // skip attempting to hydrate this block. We check both TNode and RElement for an\n    // attribute: the RElement case is needed for i18n cases, when we add it to host\n    // elements during the annotation phase (after all internal data structures are setup).\n    if (hydrationInfo &&\n        (hasSkipHydrationAttrOnTNode(tNode) || hasSkipHydrationAttrOnRElement(native))) {\n        if (isComponentHost(tNode)) {\n            enterSkipHydrationBlock(tNode);\n            // Since this isn't hydratable, we need to empty the node\n            // so there's no duplicate content after render\n            clearElementContents(native);\n            ngDevMode && ngDevMode.componentsSkippedHydration++;\n        }\n        else if (ngDevMode) {\n            // If this is not a component host, throw an error.\n            // Hydration can be skipped on per-component basis only.\n            throw invalidSkipHydrationHost(native);\n        }\n    }\n    return native;\n}\nfunction enableLocateOrCreateElementNodeImpl() {\n    _locateOrCreateElementNode = locateOrCreateElementNodeImpl;\n}\n\nfunction elementContainerStartFirstCreatePass(index, tView, lView, attrsIndex, localRefsIndex) {\n    ngDevMode && ngDevMode.firstCreatePass++;\n    const tViewConsts = tView.consts;\n    const attrs = getConstant(tViewConsts, attrsIndex);\n    const tNode = getOrCreateTNode(tView, index, 8 /* TNodeType.ElementContainer */, 'ng-container', attrs);\n    // While ng-container doesn't necessarily support styling, we use the style context to identify\n    // and execute directives on the ng-container.\n    if (attrs !== null) {\n        computeStaticStyling(tNode, attrs, true);\n    }\n    const localRefs = getConstant(tViewConsts, localRefsIndex);\n    resolveDirectives(tView, lView, tNode, localRefs);\n    if (tView.queries !== null) {\n        tView.queries.elementStart(tView, tNode);\n    }\n    return tNode;\n}\n/**\n * Creates a logical container for other nodes (<ng-container>) backed by a comment node in the DOM.\n * The instruction must later be followed by `elementContainerEnd()` call.\n *\n * @param index Index of the element in the LView array\n * @param attrsIndex Index of the container attributes in the `consts` array.\n * @param localRefsIndex Index of the container's local references in the `consts` array.\n * @returns This function returns itself so that it may be chained.\n *\n * Even if this instruction accepts a set of attributes no actual attribute values are propagated to\n * the DOM (as a comment node can't have attributes). Attributes are here only for directive\n * matching purposes and setting initial inputs of directives.\n *\n * @codeGenApi\n */\nfunction ɵɵelementContainerStart(index, attrsIndex, localRefsIndex) {\n    const lView = getLView();\n    const tView = getTView();\n    const adjustedIndex = index + HEADER_OFFSET;\n    ngDevMode && assertIndexInRange(lView, adjustedIndex);\n    ngDevMode &&\n        assertEqual(getBindingIndex(), tView.bindingStartIndex, 'element containers should be created before any bindings');\n    const tNode = tView.firstCreatePass ?\n        elementContainerStartFirstCreatePass(adjustedIndex, tView, lView, attrsIndex, localRefsIndex) :\n        tView.data[adjustedIndex];\n    setCurrentTNode(tNode, true);\n    const comment = _locateOrCreateElementContainerNode(tView, lView, tNode, index);\n    lView[adjustedIndex] = comment;\n    if (wasLastNodeCreated()) {\n        appendChild(tView, lView, comment, tNode);\n    }\n    attachPatchData(comment, lView);\n    if (isDirectiveHost(tNode)) {\n        createDirectivesInstances(tView, lView, tNode);\n        executeContentQueries(tView, tNode, lView);\n    }\n    if (localRefsIndex != null) {\n        saveResolvedLocalsInData(lView, tNode);\n    }\n    return ɵɵelementContainerStart;\n}\n/**\n * Mark the end of the <ng-container>.\n * @returns This function returns itself so that it may be chained.\n *\n * @codeGenApi\n */\nfunction ɵɵelementContainerEnd() {\n    let currentTNode = getCurrentTNode();\n    const tView = getTView();\n    if (isCurrentTNodeParent()) {\n        setCurrentTNodeAsNotParent();\n    }\n    else {\n        ngDevMode && assertHasParent(currentTNode);\n        currentTNode = currentTNode.parent;\n        setCurrentTNode(currentTNode, false);\n    }\n    ngDevMode && assertTNodeType(currentTNode, 8 /* TNodeType.ElementContainer */);\n    if (tView.firstCreatePass) {\n        registerPostOrderHooks(tView, currentTNode);\n        if (isContentQueryHost(currentTNode)) {\n            tView.queries.elementEnd(currentTNode);\n        }\n    }\n    return ɵɵelementContainerEnd;\n}\n/**\n * Creates an empty logical container using {@link elementContainerStart}\n * and {@link elementContainerEnd}\n *\n * @param index Index of the element in the LView array\n * @param attrsIndex Index of the container attributes in the `consts` array.\n * @param localRefsIndex Index of the container's local references in the `consts` array.\n * @returns This function returns itself so that it may be chained.\n *\n * @codeGenApi\n */\nfunction ɵɵelementContainer(index, attrsIndex, localRefsIndex) {\n    ɵɵelementContainerStart(index, attrsIndex, localRefsIndex);\n    ɵɵelementContainerEnd();\n    return ɵɵelementContainer;\n}\nlet _locateOrCreateElementContainerNode = (tView, lView, tNode, index) => {\n    lastNodeWasCreated(true);\n    return createCommentNode(lView[RENDERER], ngDevMode ? 'ng-container' : '');\n};\n/**\n * Enables hydration code path (to lookup existing elements in DOM)\n * in addition to the regular creation mode of comment nodes that\n * represent <ng-container>'s anchor.\n */\nfunction locateOrCreateElementContainerNode(tView, lView, tNode, index) {\n    let comment;\n    const hydrationInfo = lView[HYDRATION];\n    const isNodeCreationMode = !hydrationInfo || isInSkipHydrationBlock$1();\n    lastNodeWasCreated(isNodeCreationMode);\n    // Regular creation mode.\n    if (isNodeCreationMode) {\n        return createCommentNode(lView[RENDERER], ngDevMode ? 'ng-container' : '');\n    }\n    // Hydration mode, looking up existing elements in DOM.\n    const currentRNode = locateNextRNode(hydrationInfo, tView, lView, tNode);\n    ngDevMode && validateNodeExists(currentRNode, lView, tNode);\n    const ngContainerSize = getNgContainerSize(hydrationInfo, index);\n    ngDevMode &&\n        assertNumber(ngContainerSize, 'Unexpected state: hydrating an <ng-container>, ' +\n            'but no hydration info is available.');\n    setSegmentHead(hydrationInfo, index, currentRNode);\n    comment = siblingAfter(ngContainerSize, currentRNode);\n    if (ngDevMode) {\n        validateMatchingNode(comment, Node.COMMENT_NODE, null, lView, tNode);\n        markRNodeAsClaimedByHydration(comment);\n    }\n    return comment;\n}\nfunction enableLocateOrCreateElementContainerNodeImpl() {\n    _locateOrCreateElementContainerNode = locateOrCreateElementContainerNode;\n}\n\n/**\n * Returns the current OpaqueViewState instance.\n *\n * Used in conjunction with the restoreView() instruction to save a snapshot\n * of the current view and restore it when listeners are invoked. This allows\n * walking the declaration view tree in listeners to get vars from parent views.\n *\n * @codeGenApi\n */\nfunction ɵɵgetCurrentView() {\n    return getLView();\n}\n\n/**\n * Determine if the argument is shaped like a Promise\n */\nfunction isPromise(obj) {\n    // allow any Promise/A+ compliant thenable.\n    // It's up to the caller to ensure that obj.then conforms to the spec\n    return !!obj && typeof obj.then === 'function';\n}\n/**\n * Determine if the argument is a Subscribable\n */\nfunction isSubscribable(obj) {\n    return !!obj && typeof obj.subscribe === 'function';\n}\n\n/**\n * Adds an event listener to the current node.\n *\n * If an output exists on one of the node's directives, it also subscribes to the output\n * and saves the subscription for later cleanup.\n *\n * @param eventName Name of the event\n * @param listenerFn The function to be called when event emits\n * @param useCapture Whether or not to use capture in event listener - this argument is a reminder\n *     from the Renderer3 infrastructure and should be removed from the instruction arguments\n * @param eventTargetResolver Function that returns global target information in case this listener\n * should be attached to a global object like window, document or body\n *\n * @codeGenApi\n */\nfunction ɵɵlistener(eventName, listenerFn, useCapture, eventTargetResolver) {\n    const lView = getLView();\n    const tView = getTView();\n    const tNode = getCurrentTNode();\n    listenerInternal(tView, lView, lView[RENDERER], tNode, eventName, listenerFn, eventTargetResolver);\n    return ɵɵlistener;\n}\n/**\n * Registers a synthetic host listener (e.g. `(@foo.start)`) on a component or directive.\n *\n * This instruction is for compatibility purposes and is designed to ensure that a\n * synthetic host listener (e.g. `@HostListener('@foo.start')`) properly gets rendered\n * in the component's renderer. Normally all host listeners are evaluated with the\n * parent component's renderer, but, in the case of animation @triggers, they need\n * to be evaluated with the sub component's renderer (because that's where the\n * animation triggers are defined).\n *\n * Do not use this instruction as a replacement for `listener`. This instruction\n * only exists to ensure compatibility with the ViewEngine's host binding behavior.\n *\n * @param eventName Name of the event\n * @param listenerFn The function to be called when event emits\n * @param useCapture Whether or not to use capture in event listener\n * @param eventTargetResolver Function that returns global target information in case this listener\n * should be attached to a global object like window, document or body\n *\n * @codeGenApi\n */\nfunction ɵɵsyntheticHostListener(eventName, listenerFn) {\n    const tNode = getCurrentTNode();\n    const lView = getLView();\n    const tView = getTView();\n    const currentDef = getCurrentDirectiveDef(tView.data);\n    const renderer = loadComponentRenderer(currentDef, tNode, lView);\n    listenerInternal(tView, lView, renderer, tNode, eventName, listenerFn);\n    return ɵɵsyntheticHostListener;\n}\n/**\n * A utility function that checks if a given element has already an event handler registered for an\n * event with a specified name. The TView.cleanup data structure is used to find out which events\n * are registered for a given element.\n */\nfunction findExistingListener(tView, lView, eventName, tNodeIdx) {\n    const tCleanup = tView.cleanup;\n    if (tCleanup != null) {\n        for (let i = 0; i < tCleanup.length - 1; i += 2) {\n            const cleanupEventName = tCleanup[i];\n            if (cleanupEventName === eventName && tCleanup[i + 1] === tNodeIdx) {\n                // We have found a matching event name on the same node but it might not have been\n                // registered yet, so we must explicitly verify entries in the LView cleanup data\n                // structures.\n                const lCleanup = lView[CLEANUP];\n                const listenerIdxInLCleanup = tCleanup[i + 2];\n                return lCleanup.length > listenerIdxInLCleanup ? lCleanup[listenerIdxInLCleanup] : null;\n            }\n            // TView.cleanup can have a mix of 4-elements entries (for event handler cleanups) or\n            // 2-element entries (for directive and queries destroy hooks). As such we can encounter\n            // blocks of 4 or 2 items in the tView.cleanup and this is why we iterate over 2 elements\n            // first and jump another 2 elements if we detect listeners cleanup (4 elements). Also check\n            // documentation of TView.cleanup for more details of this data structure layout.\n            if (typeof cleanupEventName === 'string') {\n                i += 2;\n            }\n        }\n    }\n    return null;\n}\nfunction listenerInternal(tView, lView, renderer, tNode, eventName, listenerFn, eventTargetResolver) {\n    const isTNodeDirectiveHost = isDirectiveHost(tNode);\n    const firstCreatePass = tView.firstCreatePass;\n    const tCleanup = firstCreatePass && getOrCreateTViewCleanup(tView);\n    const context = lView[CONTEXT];\n    // When the ɵɵlistener instruction was generated and is executed we know that there is either a\n    // native listener or a directive output on this element. As such we we know that we will have to\n    // register a listener and store its cleanup function on LView.\n    const lCleanup = getOrCreateLViewCleanup(lView);\n    ngDevMode && assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */ | 12 /* TNodeType.AnyContainer */);\n    let processOutputs = true;\n    // Adding a native event listener is applicable when:\n    // - The corresponding TNode represents a DOM element.\n    // - The event target has a resolver (usually resulting in a global object,\n    //   such as `window` or `document`).\n    if ((tNode.type & 3 /* TNodeType.AnyRNode */) || eventTargetResolver) {\n        const native = getNativeByTNode(tNode, lView);\n        const target = eventTargetResolver ? eventTargetResolver(native) : native;\n        const lCleanupIndex = lCleanup.length;\n        const idxOrTargetGetter = eventTargetResolver ?\n            (_lView) => eventTargetResolver(unwrapRNode(_lView[tNode.index])) :\n            tNode.index;\n        // In order to match current behavior, native DOM event listeners must be added for all\n        // events (including outputs).\n        // There might be cases where multiple directives on the same element try to register an event\n        // handler function for the same event. In this situation we want to avoid registration of\n        // several native listeners as each registration would be intercepted by NgZone and\n        // trigger change detection. This would mean that a single user action would result in several\n        // change detections being invoked. To avoid this situation we want to have only one call to\n        // native handler registration (for the same element and same type of event).\n        //\n        // In order to have just one native event handler in presence of multiple handler functions,\n        // we just register a first handler function as a native event listener and then chain\n        // (coalesce) other handler functions on top of the first native handler function.\n        let existingListener = null;\n        // Please note that the coalescing described here doesn't happen for events specifying an\n        // alternative target (ex. (document:click)) - this is to keep backward compatibility with the\n        // view engine.\n        // Also, we don't have to search for existing listeners is there are no directives\n        // matching on a given node as we can't register multiple event handlers for the same event in\n        // a template (this would mean having duplicate attributes).\n        if (!eventTargetResolver && isTNodeDirectiveHost) {\n            existingListener = findExistingListener(tView, lView, eventName, tNode.index);\n        }\n        if (existingListener !== null) {\n            // Attach a new listener to coalesced listeners list, maintaining the order in which\n            // listeners are registered. For performance reasons, we keep a reference to the last\n            // listener in that list (in `__ngLastListenerFn__` field), so we can avoid going through\n            // the entire set each time we need to add a new listener.\n            const lastListenerFn = existingListener.__ngLastListenerFn__ || existingListener;\n            lastListenerFn.__ngNextListenerFn__ = listenerFn;\n            existingListener.__ngLastListenerFn__ = listenerFn;\n            processOutputs = false;\n        }\n        else {\n            listenerFn = wrapListener(tNode, lView, context, listenerFn, false /** preventDefault */);\n            const cleanupFn = renderer.listen(target, eventName, listenerFn);\n            ngDevMode && ngDevMode.rendererAddEventListener++;\n            lCleanup.push(listenerFn, cleanupFn);\n            tCleanup && tCleanup.push(eventName, idxOrTargetGetter, lCleanupIndex, lCleanupIndex + 1);\n        }\n    }\n    else {\n        // Even if there is no native listener to add, we still need to wrap the listener so that OnPush\n        // ancestors are marked dirty when an event occurs.\n        listenerFn = wrapListener(tNode, lView, context, listenerFn, false /** preventDefault */);\n    }\n    // subscribe to directive outputs\n    const outputs = tNode.outputs;\n    let props;\n    if (processOutputs && outputs !== null && (props = outputs[eventName])) {\n        const propsLength = props.length;\n        if (propsLength) {\n            for (let i = 0; i < propsLength; i += 2) {\n                const index = props[i];\n                ngDevMode && assertIndexInRange(lView, index);\n                const minifiedName = props[i + 1];\n                const directiveInstance = lView[index];\n                const output = directiveInstance[minifiedName];\n                if (ngDevMode && !isSubscribable(output)) {\n                    throw new Error(`@Output ${minifiedName} not initialized in '${directiveInstance.constructor.name}'.`);\n                }\n                const subscription = output.subscribe(listenerFn);\n                const idx = lCleanup.length;\n                lCleanup.push(listenerFn, subscription);\n                tCleanup && tCleanup.push(eventName, tNode.index, idx, -(idx + 1));\n            }\n        }\n    }\n}\nfunction executeListenerWithErrorHandling(lView, context, listenerFn, e) {\n    try {\n        profiler(6 /* ProfilerEvent.OutputStart */, context, listenerFn);\n        // Only explicitly returning false from a listener should preventDefault\n        return listenerFn(e) !== false;\n    }\n    catch (error) {\n        handleError(lView, error);\n        return false;\n    }\n    finally {\n        profiler(7 /* ProfilerEvent.OutputEnd */, context, listenerFn);\n    }\n}\n/**\n * Wraps an event listener with a function that marks ancestors dirty and prevents default behavior,\n * if applicable.\n *\n * @param tNode The TNode associated with this listener\n * @param lView The LView that contains this listener\n * @param listenerFn The listener function to call\n * @param wrapWithPreventDefault Whether or not to prevent default behavior\n * (the procedural renderer does this already, so in those cases, we should skip)\n */\nfunction wrapListener(tNode, lView, context, listenerFn, wrapWithPreventDefault) {\n    // Note: we are performing most of the work in the listener function itself\n    // to optimize listener registration.\n    return function wrapListenerIn_markDirtyAndPreventDefault(e) {\n        // Ivy uses `Function` as a special token that allows us to unwrap the function\n        // so that it can be invoked programmatically by `DebugNode.triggerEventHandler`.\n        if (e === Function) {\n            return listenerFn;\n        }\n        // In order to be backwards compatible with View Engine, events on component host nodes\n        // must also mark the component view itself dirty (i.e. the view that it owns).\n        const startView = tNode.componentOffset > -1 ? getComponentLViewByIndex(tNode.index, lView) : lView;\n        markViewDirty(startView);\n        let result = executeListenerWithErrorHandling(lView, context, listenerFn, e);\n        // A just-invoked listener function might have coalesced listeners so we need to check for\n        // their presence and invoke as needed.\n        let nextListenerFn = wrapListenerIn_markDirtyAndPreventDefault.__ngNextListenerFn__;\n        while (nextListenerFn) {\n            // We should prevent default if any of the listeners explicitly return false\n            result = executeListenerWithErrorHandling(lView, context, nextListenerFn, e) && result;\n            nextListenerFn = nextListenerFn.__ngNextListenerFn__;\n        }\n        if (wrapWithPreventDefault && result === false) {\n            e.preventDefault();\n        }\n        return result;\n    };\n}\n\n/**\n * Retrieves a context at the level specified and saves it as the global, contextViewData.\n * Will get the next level up if level is not specified.\n *\n * This is used to save contexts of parent views so they can be bound in embedded views, or\n * in conjunction with reference() to bind a ref from a parent view.\n *\n * @param level The relative level of the view from which to grab context compared to contextVewData\n * @returns context\n *\n * @codeGenApi\n */\nfunction ɵɵnextContext(level = 1) {\n    return nextContextImpl(level);\n}\n\n/**\n * Checks a given node against matching projection slots and returns the\n * determined slot index. Returns \"null\" if no slot matched the given node.\n *\n * This function takes into account the parsed ngProjectAs selector from the\n * node's attributes. If present, it will check whether the ngProjectAs selector\n * matches any of the projection slot selectors.\n */\nfunction matchingProjectionSlotIndex(tNode, projectionSlots) {\n    let wildcardNgContentIndex = null;\n    const ngProjectAsAttrVal = getProjectAsAttrValue(tNode);\n    for (let i = 0; i < projectionSlots.length; i++) {\n        const slotValue = projectionSlots[i];\n        // The last wildcard projection slot should match all nodes which aren't matching\n        // any selector. This is necessary to be backwards compatible with view engine.\n        if (slotValue === '*') {\n            wildcardNgContentIndex = i;\n            continue;\n        }\n        // If we ran into an `ngProjectAs` attribute, we should match its parsed selector\n        // to the list of selectors, otherwise we fall back to matching against the node.\n        if (ngProjectAsAttrVal === null ?\n            isNodeMatchingSelectorList(tNode, slotValue, /* isProjectionMode */ true) :\n            isSelectorInSelectorList(ngProjectAsAttrVal, slotValue)) {\n            return i; // first matching selector \"captures\" a given node\n        }\n    }\n    return wildcardNgContentIndex;\n}\n/**\n * Instruction to distribute projectable nodes among <ng-content> occurrences in a given template.\n * It takes all the selectors from the entire component's template and decides where\n * each projected node belongs (it re-distributes nodes among \"buckets\" where each \"bucket\" is\n * backed by a selector).\n *\n * This function requires CSS selectors to be provided in 2 forms: parsed (by a compiler) and text,\n * un-parsed form.\n *\n * The parsed form is needed for efficient matching of a node against a given CSS selector.\n * The un-parsed, textual form is needed for support of the ngProjectAs attribute.\n *\n * Having a CSS selector in 2 different formats is not ideal, but alternatives have even more\n * drawbacks:\n * - having only a textual form would require runtime parsing of CSS selectors;\n * - we can't have only a parsed as we can't re-construct textual form from it (as entered by a\n * template author).\n *\n * @param projectionSlots? A collection of projection slots. A projection slot can be based\n *        on a parsed CSS selectors or set to the wildcard selector (\"*\") in order to match\n *        all nodes which do not match any selector. If not specified, a single wildcard\n *        selector projection slot will be defined.\n *\n * @codeGenApi\n */\nfunction ɵɵprojectionDef(projectionSlots) {\n    const componentNode = getLView()[DECLARATION_COMPONENT_VIEW][T_HOST];\n    if (!componentNode.projection) {\n        // If no explicit projection slots are defined, fall back to a single\n        // projection slot with the wildcard selector.\n        const numProjectionSlots = projectionSlots ? projectionSlots.length : 1;\n        const projectionHeads = componentNode.projection =\n            newArray(numProjectionSlots, null);\n        const tails = projectionHeads.slice();\n        let componentChild = componentNode.child;\n        while (componentChild !== null) {\n            const slotIndex = projectionSlots ? matchingProjectionSlotIndex(componentChild, projectionSlots) : 0;\n            if (slotIndex !== null) {\n                if (tails[slotIndex]) {\n                    tails[slotIndex].projectionNext = componentChild;\n                }\n                else {\n                    projectionHeads[slotIndex] = componentChild;\n                }\n                tails[slotIndex] = componentChild;\n            }\n            componentChild = componentChild.next;\n        }\n    }\n}\n/**\n * Inserts previously re-distributed projected nodes. This instruction must be preceded by a call\n * to the projectionDef instruction.\n *\n * @param nodeIndex\n * @param selectorIndex:\n *        - 0 when the selector is `*` (or unspecified as this is the default value),\n *        - 1 based index of the selector from the {@link projectionDef}\n *\n * @codeGenApi\n */\nfunction ɵɵprojection(nodeIndex, selectorIndex = 0, attrs) {\n    const lView = getLView();\n    const tView = getTView();\n    const tProjectionNode = getOrCreateTNode(tView, HEADER_OFFSET + nodeIndex, 16 /* TNodeType.Projection */, null, attrs || null);\n    // We can't use viewData[HOST_NODE] because projection nodes can be nested in embedded views.\n    if (tProjectionNode.projection === null)\n        tProjectionNode.projection = selectorIndex;\n    // `<ng-content>` has no content\n    setCurrentTNodeAsNotParent();\n    const hydrationInfo = lView[HYDRATION];\n    const isNodeCreationMode = !hydrationInfo || isInSkipHydrationBlock$1();\n    if (isNodeCreationMode &&\n        (tProjectionNode.flags & 32 /* TNodeFlags.isDetached */) !== 32 /* TNodeFlags.isDetached */) {\n        // re-distribution of projectable nodes is stored on a component's view level\n        applyProjection(tView, lView, tProjectionNode);\n    }\n}\n\n/**\n *\n * Update an interpolated property on an element with a lone bound value\n *\n * Used when the value passed to a property has 1 interpolated value in it, an no additional text\n * surrounds that interpolated value:\n *\n * ```html\n * <div title=\"{{v0}}\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate('title', v0);\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate(propName, v0, sanitizer) {\n    ɵɵpropertyInterpolate1(propName, '', v0, '', sanitizer);\n    return ɵɵpropertyInterpolate;\n}\n/**\n *\n * Update an interpolated property on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate1('title', 'prefix', v0, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate1(propName, prefix, v0, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 1, prefix, suffix);\n    }\n    return ɵɵpropertyInterpolate1;\n}\n/**\n *\n * Update an interpolated property on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate2('title', 'prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate2(propName, prefix, v0, i0, v1, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 2, prefix, i0, suffix);\n    }\n    return ɵɵpropertyInterpolate2;\n}\n/**\n *\n * Update an interpolated property on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate3(\n * 'title', 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate3(propName, prefix, v0, i0, v1, i1, v2, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 3, prefix, i0, i1, suffix);\n    }\n    return ɵɵpropertyInterpolate3;\n}\n/**\n *\n * Update an interpolated property on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate4(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate4(propName, prefix, v0, i0, v1, i1, v2, i2, v3, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 4, prefix, i0, i1, i2, suffix);\n    }\n    return ɵɵpropertyInterpolate4;\n}\n/**\n *\n * Update an interpolated property on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate5(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate5(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 5, prefix, i0, i1, i2, i3, suffix);\n    }\n    return ɵɵpropertyInterpolate5;\n}\n/**\n *\n * Update an interpolated property on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate6(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate6(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 6, prefix, i0, i1, i2, i3, i4, suffix);\n    }\n    return ɵɵpropertyInterpolate6;\n}\n/**\n *\n * Update an interpolated property on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate7(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate7(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 7, prefix, i0, i1, i2, i3, i4, i5, suffix);\n    }\n    return ɵɵpropertyInterpolate7;\n}\n/**\n *\n * Update an interpolated property on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate8(\n *  'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param i6 Static value used for concatenation only.\n * @param v7 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolate8(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 8, prefix, i0, i1, i2, i3, i4, i5, i6, suffix);\n    }\n    return ɵɵpropertyInterpolate8;\n}\n/**\n * Update an interpolated property on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolateV(\n *  'title', ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `@Inputs` don't have to be re-compiled.\n *\n * @param propName The name of the property to update.\n * @param values The collection of values and the strings in between those values, beginning with a\n * string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @param sanitizer An optional sanitizer function\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵpropertyInterpolateV(propName, values, sanitizer) {\n    const lView = getLView();\n    const interpolatedValue = interpolationV(lView, values);\n    if (interpolatedValue !== NO_CHANGE) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        if (ngDevMode) {\n            const interpolationInBetween = [values[0]]; // prefix\n            for (let i = 2; i < values.length; i += 2) {\n                interpolationInBetween.push(values[i]);\n            }\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - interpolationInBetween.length + 1, ...interpolationInBetween);\n        }\n    }\n    return ɵɵpropertyInterpolateV;\n}\n\nfunction toTStylingRange(prev, next) {\n    ngDevMode && assertNumberInRange(prev, 0, 32767 /* StylingRange.UNSIGNED_MASK */);\n    ngDevMode && assertNumberInRange(next, 0, 32767 /* StylingRange.UNSIGNED_MASK */);\n    return (prev << 17 /* StylingRange.PREV_SHIFT */ | next << 2 /* StylingRange.NEXT_SHIFT */);\n}\nfunction getTStylingRangePrev(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (tStylingRange >> 17 /* StylingRange.PREV_SHIFT */) & 32767 /* StylingRange.UNSIGNED_MASK */;\n}\nfunction getTStylingRangePrevDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (tStylingRange & 2 /* StylingRange.PREV_DUPLICATE */) == 2 /* StylingRange.PREV_DUPLICATE */;\n}\nfunction setTStylingRangePrev(tStylingRange, previous) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    ngDevMode && assertNumberInRange(previous, 0, 32767 /* StylingRange.UNSIGNED_MASK */);\n    return ((tStylingRange & ~4294836224 /* StylingRange.PREV_MASK */) | (previous << 17 /* StylingRange.PREV_SHIFT */));\n}\nfunction setTStylingRangePrevDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (tStylingRange | 2 /* StylingRange.PREV_DUPLICATE */);\n}\nfunction getTStylingRangeNext(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (tStylingRange & 131068 /* StylingRange.NEXT_MASK */) >> 2 /* StylingRange.NEXT_SHIFT */;\n}\nfunction setTStylingRangeNext(tStylingRange, next) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    ngDevMode && assertNumberInRange(next, 0, 32767 /* StylingRange.UNSIGNED_MASK */);\n    return ((tStylingRange & ~131068 /* StylingRange.NEXT_MASK */) | //\n        next << 2 /* StylingRange.NEXT_SHIFT */);\n}\nfunction getTStylingRangeNextDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return ((tStylingRange) & 1 /* StylingRange.NEXT_DUPLICATE */) === 1 /* StylingRange.NEXT_DUPLICATE */;\n}\nfunction setTStylingRangeNextDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (tStylingRange | 1 /* StylingRange.NEXT_DUPLICATE */);\n}\nfunction getTStylingRangeTail(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    const next = getTStylingRangeNext(tStylingRange);\n    return next === 0 ? getTStylingRangePrev(tStylingRange) : next;\n}\n\n/**\n * NOTE: The word `styling` is used interchangeably as style or class styling.\n *\n * This file contains code to link styling instructions together so that they can be replayed in\n * priority order. The file exists because Ivy styling instruction execution order does not match\n * that of the priority order. The purpose of this code is to create a linked list so that the\n * instructions can be traversed in priority order when computing the styles.\n *\n * Assume we are dealing with the following code:\n * ```\n * @Component({\n *   template: `\n *     <my-cmp [style]=\" {color: '#001'} \"\n *             [style.color]=\" #002 \"\n *             dir-style-color-1\n *             dir-style-color-2> `\n * })\n * class ExampleComponent {\n *   static ngComp = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#001'});\n *     ɵɵstyleProp('color', '#002');\n *     ...\n *   }\n * }\n *\n * @Directive({\n *   selector: `[dir-style-color-1]',\n * })\n * class Style1Directive {\n *   @HostBinding('style') style = {color: '#005'};\n *   @HostBinding('style.color') color = '#006';\n *\n *   static ngDir = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#005'});\n *     ɵɵstyleProp('color', '#006');\n *     ...\n *   }\n * }\n *\n * @Directive({\n *   selector: `[dir-style-color-2]',\n * })\n * class Style2Directive {\n *   @HostBinding('style') style = {color: '#007'};\n *   @HostBinding('style.color') color = '#008';\n *\n *   static ngDir = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#007'});\n *     ɵɵstyleProp('color', '#008');\n *     ...\n *   }\n * }\n *\n * @Directive({\n *   selector: `my-cmp',\n * })\n * class MyComponent {\n *   @HostBinding('style') style = {color: '#003'};\n *   @HostBinding('style.color') color = '#004';\n *\n *   static ngComp = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#003'});\n *     ɵɵstyleProp('color', '#004');\n *     ...\n *   }\n * }\n * ```\n *\n * The Order of instruction execution is:\n *\n * NOTE: the comment binding location is for illustrative purposes only.\n *\n * ```\n * // Template: (ExampleComponent)\n *     ɵɵstyleMap({color: '#001'});   // Binding index: 10\n *     ɵɵstyleProp('color', '#002');  // Binding index: 12\n * // MyComponent\n *     ɵɵstyleMap({color: '#003'});   // Binding index: 20\n *     ɵɵstyleProp('color', '#004');  // Binding index: 22\n * // Style1Directive\n *     ɵɵstyleMap({color: '#005'});   // Binding index: 24\n *     ɵɵstyleProp('color', '#006');  // Binding index: 26\n * // Style2Directive\n *     ɵɵstyleMap({color: '#007'});   // Binding index: 28\n *     ɵɵstyleProp('color', '#008');  // Binding index: 30\n * ```\n *\n * The correct priority order of concatenation is:\n *\n * ```\n * // MyComponent\n *     ɵɵstyleMap({color: '#003'});   // Binding index: 20\n *     ɵɵstyleProp('color', '#004');  // Binding index: 22\n * // Style1Directive\n *     ɵɵstyleMap({color: '#005'});   // Binding index: 24\n *     ɵɵstyleProp('color', '#006');  // Binding index: 26\n * // Style2Directive\n *     ɵɵstyleMap({color: '#007'});   // Binding index: 28\n *     ɵɵstyleProp('color', '#008');  // Binding index: 30\n * // Template: (ExampleComponent)\n *     ɵɵstyleMap({color: '#001'});   // Binding index: 10\n *     ɵɵstyleProp('color', '#002');  // Binding index: 12\n * ```\n *\n * What color should be rendered?\n *\n * Once the items are correctly sorted in the list, the answer is simply the last item in the\n * concatenation list which is `#002`.\n *\n * To do so we keep a linked list of all of the bindings which pertain to this element.\n * Notice that the bindings are inserted in the order of execution, but the `TView.data` allows\n * us to traverse them in the order of priority.\n *\n * |Idx|`TView.data`|`LView`          | Notes\n * |---|------------|-----------------|--------------\n * |...|            |                 |\n * |10 |`null`      |`{color: '#001'}`| `ɵɵstyleMap('color', {color: '#001'})`\n * |11 |`30 | 12`   | ...             |\n * |12 |`color`     |`'#002'`         | `ɵɵstyleProp('color', '#002')`\n * |13 |`10 | 0`    | ...             |\n * |...|            |                 |\n * |20 |`null`      |`{color: '#003'}`| `ɵɵstyleMap('color', {color: '#003'})`\n * |21 |`0 | 22`    | ...             |\n * |22 |`color`     |`'#004'`         | `ɵɵstyleProp('color', '#004')`\n * |23 |`20 | 24`   | ...             |\n * |24 |`null`      |`{color: '#005'}`| `ɵɵstyleMap('color', {color: '#005'})`\n * |25 |`22 | 26`   | ...             |\n * |26 |`color`     |`'#006'`         | `ɵɵstyleProp('color', '#006')`\n * |27 |`24 | 28`   | ...             |\n * |28 |`null`      |`{color: '#007'}`| `ɵɵstyleMap('color', {color: '#007'})`\n * |29 |`26 | 30`   | ...             |\n * |30 |`color`     |`'#008'`         | `ɵɵstyleProp('color', '#008')`\n * |31 |`28 | 10`   | ...             |\n *\n * The above data structure allows us to re-concatenate the styling no matter which data binding\n * changes.\n *\n * NOTE: in addition to keeping track of next/previous index the `TView.data` also stores prev/next\n * duplicate bit. The duplicate bit if true says there either is a binding with the same name or\n * there is a map (which may contain the name). This information is useful in knowing if other\n * styles with higher priority need to be searched for overwrites.\n *\n * NOTE: See `should support example in 'tnode_linked_list.ts' documentation` in\n * `tnode_linked_list_spec.ts` for working example.\n */\nlet __unused_const_as_closure_does_not_like_standalone_comment_blocks__;\n/**\n * Insert new `tStyleValue` at `TData` and link existing style bindings such that we maintain linked\n * list of styles and compute the duplicate flag.\n *\n * Note: this function is executed during `firstUpdatePass` only to populate the `TView.data`.\n *\n * The function works by keeping track of `tStylingRange` which contains two pointers pointing to\n * the head/tail of the template portion of the styles.\n *  - if `isHost === false` (we are template) then insertion is at tail of `TStylingRange`\n *  - if `isHost === true` (we are host binding) then insertion is at head of `TStylingRange`\n *\n * @param tData The `TData` to insert into.\n * @param tNode `TNode` associated with the styling element.\n * @param tStylingKey See `TStylingKey`.\n * @param index location of where `tStyleValue` should be stored (and linked into list.)\n * @param isHostBinding `true` if the insertion is for a `hostBinding`. (insertion is in front of\n *               template.)\n * @param isClassBinding True if the associated `tStylingKey` as a `class` styling.\n *                       `tNode.classBindings` should be used (or `tNode.styleBindings` otherwise.)\n */\nfunction insertTStylingBinding(tData, tNode, tStylingKeyWithStatic, index, isHostBinding, isClassBinding) {\n    ngDevMode && assertFirstUpdatePass(getTView());\n    let tBindings = isClassBinding ? tNode.classBindings : tNode.styleBindings;\n    let tmplHead = getTStylingRangePrev(tBindings);\n    let tmplTail = getTStylingRangeNext(tBindings);\n    tData[index] = tStylingKeyWithStatic;\n    let isKeyDuplicateOfStatic = false;\n    let tStylingKey;\n    if (Array.isArray(tStylingKeyWithStatic)) {\n        // We are case when the `TStylingKey` contains static fields as well.\n        const staticKeyValueArray = tStylingKeyWithStatic;\n        tStylingKey = staticKeyValueArray[1]; // unwrap.\n        // We need to check if our key is present in the static so that we can mark it as duplicate.\n        if (tStylingKey === null ||\n            keyValueArrayIndexOf(staticKeyValueArray, tStylingKey) > 0) {\n            // tStylingKey is present in the statics, need to mark it as duplicate.\n            isKeyDuplicateOfStatic = true;\n        }\n    }\n    else {\n        tStylingKey = tStylingKeyWithStatic;\n    }\n    if (isHostBinding) {\n        // We are inserting host bindings\n        // If we don't have template bindings then `tail` is 0.\n        const hasTemplateBindings = tmplTail !== 0;\n        // This is important to know because that means that the `head` can't point to the first\n        // template bindings (there are none.) Instead the head points to the tail of the template.\n        if (hasTemplateBindings) {\n            // template head's \"prev\" will point to last host binding or to 0 if no host bindings yet\n            const previousNode = getTStylingRangePrev(tData[tmplHead + 1]);\n            tData[index + 1] = toTStylingRange(previousNode, tmplHead);\n            // if a host binding has already been registered, we need to update the next of that host\n            // binding to point to this one\n            if (previousNode !== 0) {\n                // We need to update the template-tail value to point to us.\n                tData[previousNode + 1] =\n                    setTStylingRangeNext(tData[previousNode + 1], index);\n            }\n            // The \"previous\" of the template binding head should point to this host binding\n            tData[tmplHead + 1] = setTStylingRangePrev(tData[tmplHead + 1], index);\n        }\n        else {\n            tData[index + 1] = toTStylingRange(tmplHead, 0);\n            // if a host binding has already been registered, we need to update the next of that host\n            // binding to point to this one\n            if (tmplHead !== 0) {\n                // We need to update the template-tail value to point to us.\n                tData[tmplHead + 1] = setTStylingRangeNext(tData[tmplHead + 1], index);\n            }\n            // if we don't have template, the head points to template-tail, and needs to be advanced.\n            tmplHead = index;\n        }\n    }\n    else {\n        // We are inserting in template section.\n        // We need to set this binding's \"previous\" to the current template tail\n        tData[index + 1] = toTStylingRange(tmplTail, 0);\n        ngDevMode &&\n            assertEqual(tmplHead !== 0 && tmplTail === 0, false, 'Adding template bindings after hostBindings is not allowed.');\n        if (tmplHead === 0) {\n            tmplHead = index;\n        }\n        else {\n            // We need to update the previous value \"next\" to point to this binding\n            tData[tmplTail + 1] = setTStylingRangeNext(tData[tmplTail + 1], index);\n        }\n        tmplTail = index;\n    }\n    // Now we need to update / compute the duplicates.\n    // Starting with our location search towards head (least priority)\n    if (isKeyDuplicateOfStatic) {\n        tData[index + 1] = setTStylingRangePrevDuplicate(tData[index + 1]);\n    }\n    markDuplicates(tData, tStylingKey, index, true, isClassBinding);\n    markDuplicates(tData, tStylingKey, index, false, isClassBinding);\n    markDuplicateOfResidualStyling(tNode, tStylingKey, tData, index, isClassBinding);\n    tBindings = toTStylingRange(tmplHead, tmplTail);\n    if (isClassBinding) {\n        tNode.classBindings = tBindings;\n    }\n    else {\n        tNode.styleBindings = tBindings;\n    }\n}\n/**\n * Look into the residual styling to see if the current `tStylingKey` is duplicate of residual.\n *\n * @param tNode `TNode` where the residual is stored.\n * @param tStylingKey `TStylingKey` to store.\n * @param tData `TData` associated with the current `LView`.\n * @param index location of where `tStyleValue` should be stored (and linked into list.)\n * @param isClassBinding True if the associated `tStylingKey` as a `class` styling.\n *                       `tNode.classBindings` should be used (or `tNode.styleBindings` otherwise.)\n */\nfunction markDuplicateOfResidualStyling(tNode, tStylingKey, tData, index, isClassBinding) {\n    const residual = isClassBinding ? tNode.residualClasses : tNode.residualStyles;\n    if (residual != null /* or undefined */ && typeof tStylingKey == 'string' &&\n        keyValueArrayIndexOf(residual, tStylingKey) >= 0) {\n        // We have duplicate in the residual so mark ourselves as duplicate.\n        tData[index + 1] = setTStylingRangeNextDuplicate(tData[index + 1]);\n    }\n}\n/**\n * Marks `TStyleValue`s as duplicates if another style binding in the list has the same\n * `TStyleValue`.\n *\n * NOTE: this function is intended to be called twice once with `isPrevDir` set to `true` and once\n * with it set to `false` to search both the previous as well as next items in the list.\n *\n * No duplicate case\n * ```\n *   [style.color]\n *   [style.width.px] <<- index\n *   [style.height.px]\n * ```\n *\n * In the above case adding `[style.width.px]` to the existing `[style.color]` produces no\n * duplicates because `width` is not found in any other part of the linked list.\n *\n * Duplicate case\n * ```\n *   [style.color]\n *   [style.width.em]\n *   [style.width.px] <<- index\n * ```\n * In the above case adding `[style.width.px]` will produce a duplicate with `[style.width.em]`\n * because `width` is found in the chain.\n *\n * Map case 1\n * ```\n *   [style.width.px]\n *   [style.color]\n *   [style]  <<- index\n * ```\n * In the above case adding `[style]` will produce a duplicate with any other bindings because\n * `[style]` is a Map and as such is fully dynamic and could produce `color` or `width`.\n *\n * Map case 2\n * ```\n *   [style]\n *   [style.width.px]\n *   [style.color]  <<- index\n * ```\n * In the above case adding `[style.color]` will produce a duplicate because there is already a\n * `[style]` binding which is a Map and as such is fully dynamic and could produce `color` or\n * `width`.\n *\n * NOTE: Once `[style]` (Map) is added into the system all things are mapped as duplicates.\n * NOTE: We use `style` as example, but same logic is applied to `class`es as well.\n *\n * @param tData `TData` where the linked list is stored.\n * @param tStylingKey `TStylingKeyPrimitive` which contains the value to compare to other keys in\n *        the linked list.\n * @param index Starting location in the linked list to search from\n * @param isPrevDir Direction.\n *        - `true` for previous (lower priority);\n *        - `false` for next (higher priority).\n */\nfunction markDuplicates(tData, tStylingKey, index, isPrevDir, isClassBinding) {\n    const tStylingAtIndex = tData[index + 1];\n    const isMap = tStylingKey === null;\n    let cursor = isPrevDir ? getTStylingRangePrev(tStylingAtIndex) : getTStylingRangeNext(tStylingAtIndex);\n    let foundDuplicate = false;\n    // We keep iterating as long as we have a cursor\n    // AND either:\n    // - we found what we are looking for, OR\n    // - we are a map in which case we have to continue searching even after we find what we were\n    //   looking for since we are a wild card and everything needs to be flipped to duplicate.\n    while (cursor !== 0 && (foundDuplicate === false || isMap)) {\n        ngDevMode && assertIndexInRange(tData, cursor);\n        const tStylingValueAtCursor = tData[cursor];\n        const tStyleRangeAtCursor = tData[cursor + 1];\n        if (isStylingMatch(tStylingValueAtCursor, tStylingKey)) {\n            foundDuplicate = true;\n            tData[cursor + 1] = isPrevDir ? setTStylingRangeNextDuplicate(tStyleRangeAtCursor) :\n                setTStylingRangePrevDuplicate(tStyleRangeAtCursor);\n        }\n        cursor = isPrevDir ? getTStylingRangePrev(tStyleRangeAtCursor) :\n            getTStylingRangeNext(tStyleRangeAtCursor);\n    }\n    if (foundDuplicate) {\n        // if we found a duplicate, than mark ourselves.\n        tData[index + 1] = isPrevDir ? setTStylingRangePrevDuplicate(tStylingAtIndex) :\n            setTStylingRangeNextDuplicate(tStylingAtIndex);\n    }\n}\n/**\n * Determines if two `TStylingKey`s are a match.\n *\n * When computing whether a binding contains a duplicate, we need to compare if the instruction\n * `TStylingKey` has a match.\n *\n * Here are examples of `TStylingKey`s which match given `tStylingKeyCursor` is:\n * - `color`\n *    - `color`    // Match another color\n *    - `null`     // That means that `tStylingKey` is a `classMap`/`styleMap` instruction\n *    - `['', 'color', 'other', true]` // wrapped `color` so match\n *    - `['', null, 'other', true]`       // wrapped `null` so match\n *    - `['', 'width', 'color', 'value']` // wrapped static value contains a match on `'color'`\n * - `null`       // `tStylingKeyCursor` always match as it is `classMap`/`styleMap` instruction\n *\n * @param tStylingKeyCursor\n * @param tStylingKey\n */\nfunction isStylingMatch(tStylingKeyCursor, tStylingKey) {\n    ngDevMode &&\n        assertNotEqual(Array.isArray(tStylingKey), true, 'Expected that \\'tStylingKey\\' has been unwrapped');\n    if (tStylingKeyCursor === null || // If the cursor is `null` it means that we have map at that\n        // location so we must assume that we have a match.\n        tStylingKey == null || // If `tStylingKey` is `null` then it is a map therefor assume that it\n        // contains a match.\n        (Array.isArray(tStylingKeyCursor) ? tStylingKeyCursor[1] : tStylingKeyCursor) ===\n            tStylingKey // If the keys match explicitly than we are a match.\n    ) {\n        return true;\n    }\n    else if (Array.isArray(tStylingKeyCursor) && typeof tStylingKey === 'string') {\n        // if we did not find a match, but `tStylingKeyCursor` is `KeyValueArray` that means cursor has\n        // statics and we need to check those as well.\n        return keyValueArrayIndexOf(tStylingKeyCursor, tStylingKey) >=\n            0; // see if we are matching the key\n    }\n    return false;\n}\n\n// Global state of the parser. (This makes parser non-reentrant, but that is not an issue)\nconst parserState = {\n    textEnd: 0,\n    key: 0,\n    keyEnd: 0,\n    value: 0,\n    valueEnd: 0,\n};\n/**\n * Retrieves the last parsed `key` of style.\n * @param text the text to substring the key from.\n */\nfunction getLastParsedKey(text) {\n    return text.substring(parserState.key, parserState.keyEnd);\n}\n/**\n * Retrieves the last parsed `value` of style.\n * @param text the text to substring the key from.\n */\nfunction getLastParsedValue(text) {\n    return text.substring(parserState.value, parserState.valueEnd);\n}\n/**\n * Initializes `className` string for parsing and parses the first token.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseClassName(text); i >= 0; i = parseClassNameNext(text, i)) {\n *   const key = getLastParsedKey();\n *   ...\n * }\n * ```\n * @param text `className` to parse\n * @returns index where the next invocation of `parseClassNameNext` should resume.\n */\nfunction parseClassName(text) {\n    resetParserState(text);\n    return parseClassNameNext(text, consumeWhitespace(text, 0, parserState.textEnd));\n}\n/**\n * Parses next `className` token.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseClassName(text); i >= 0; i = parseClassNameNext(text, i)) {\n *   const key = getLastParsedKey();\n *   ...\n * }\n * ```\n *\n * @param text `className` to parse\n * @param index where the parsing should resume.\n * @returns index where the next invocation of `parseClassNameNext` should resume.\n */\nfunction parseClassNameNext(text, index) {\n    const end = parserState.textEnd;\n    if (end === index) {\n        return -1;\n    }\n    index = parserState.keyEnd = consumeClassToken(text, parserState.key = index, end);\n    return consumeWhitespace(text, index, end);\n}\n/**\n * Initializes `cssText` string for parsing and parses the first key/values.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseStyle(text); i >= 0; i = parseStyleNext(text, i))) {\n *   const key = getLastParsedKey();\n *   const value = getLastParsedValue();\n *   ...\n * }\n * ```\n * @param text `cssText` to parse\n * @returns index where the next invocation of `parseStyleNext` should resume.\n */\nfunction parseStyle(text) {\n    resetParserState(text);\n    return parseStyleNext(text, consumeWhitespace(text, 0, parserState.textEnd));\n}\n/**\n * Parses the next `cssText` key/values.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseStyle(text); i >= 0; i = parseStyleNext(text, i))) {\n *   const key = getLastParsedKey();\n *   const value = getLastParsedValue();\n *   ...\n * }\n *\n * @param text `cssText` to parse\n * @param index where the parsing should resume.\n * @returns index where the next invocation of `parseStyleNext` should resume.\n */\nfunction parseStyleNext(text, startIndex) {\n    const end = parserState.textEnd;\n    let index = parserState.key = consumeWhitespace(text, startIndex, end);\n    if (end === index) {\n        // we reached an end so just quit\n        return -1;\n    }\n    index = parserState.keyEnd = consumeStyleKey(text, index, end);\n    index = consumeSeparator(text, index, end, 58 /* CharCode.COLON */);\n    index = parserState.value = consumeWhitespace(text, index, end);\n    index = parserState.valueEnd = consumeStyleValue(text, index, end);\n    return consumeSeparator(text, index, end, 59 /* CharCode.SEMI_COLON */);\n}\n/**\n * Reset the global state of the styling parser.\n * @param text The styling text to parse.\n */\nfunction resetParserState(text) {\n    parserState.key = 0;\n    parserState.keyEnd = 0;\n    parserState.value = 0;\n    parserState.valueEnd = 0;\n    parserState.textEnd = text.length;\n}\n/**\n * Returns index of next non-whitespace character.\n *\n * @param text Text to scan\n * @param startIndex Starting index of character where the scan should start.\n * @param endIndex Ending index of character where the scan should end.\n * @returns Index of next non-whitespace character (May be the same as `start` if no whitespace at\n *          that location.)\n */\nfunction consumeWhitespace(text, startIndex, endIndex) {\n    while (startIndex < endIndex && text.charCodeAt(startIndex) <= 32 /* CharCode.SPACE */) {\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Returns index of last char in class token.\n *\n * @param text Text to scan\n * @param startIndex Starting index of character where the scan should start.\n * @param endIndex Ending index of character where the scan should end.\n * @returns Index after last char in class token.\n */\nfunction consumeClassToken(text, startIndex, endIndex) {\n    while (startIndex < endIndex && text.charCodeAt(startIndex) > 32 /* CharCode.SPACE */) {\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Consumes all of the characters belonging to style key and token.\n *\n * @param text Text to scan\n * @param startIndex Starting index of character where the scan should start.\n * @param endIndex Ending index of character where the scan should end.\n * @returns Index after last style key character.\n */\nfunction consumeStyleKey(text, startIndex, endIndex) {\n    let ch;\n    while (startIndex < endIndex &&\n        ((ch = text.charCodeAt(startIndex)) === 45 /* CharCode.DASH */ || ch === 95 /* CharCode.UNDERSCORE */ ||\n            ((ch & -33 /* CharCode.UPPER_CASE */) >= 65 /* CharCode.A */ && (ch & -33 /* CharCode.UPPER_CASE */) <= 90 /* CharCode.Z */) ||\n            (ch >= 48 /* CharCode.ZERO */ && ch <= 57 /* CharCode.NINE */))) {\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Consumes all whitespace and the separator `:` after the style key.\n *\n * @param text Text to scan\n * @param startIndex Starting index of character where the scan should start.\n * @param endIndex Ending index of character where the scan should end.\n * @returns Index after separator and surrounding whitespace.\n */\nfunction consumeSeparator(text, startIndex, endIndex, separator) {\n    startIndex = consumeWhitespace(text, startIndex, endIndex);\n    if (startIndex < endIndex) {\n        if (ngDevMode && text.charCodeAt(startIndex) !== separator) {\n            malformedStyleError(text, String.fromCharCode(separator), startIndex);\n        }\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Consumes style value honoring `url()` and `\"\"` text.\n *\n * @param text Text to scan\n * @param startIndex Starting index of character where the scan should start.\n * @param endIndex Ending index of character where the scan should end.\n * @returns Index after last style value character.\n */\nfunction consumeStyleValue(text, startIndex, endIndex) {\n    let ch1 = -1; // 1st previous character\n    let ch2 = -1; // 2nd previous character\n    let ch3 = -1; // 3rd previous character\n    let i = startIndex;\n    let lastChIndex = i;\n    while (i < endIndex) {\n        const ch = text.charCodeAt(i++);\n        if (ch === 59 /* CharCode.SEMI_COLON */) {\n            return lastChIndex;\n        }\n        else if (ch === 34 /* CharCode.DOUBLE_QUOTE */ || ch === 39 /* CharCode.SINGLE_QUOTE */) {\n            lastChIndex = i = consumeQuotedText(text, ch, i, endIndex);\n        }\n        else if (startIndex ===\n            i - 4 && // We have seen only 4 characters so far \"URL(\" (Ignore \"foo_URL()\")\n            ch3 === 85 /* CharCode.U */ &&\n            ch2 === 82 /* CharCode.R */ && ch1 === 76 /* CharCode.L */ && ch === 40 /* CharCode.OPEN_PAREN */) {\n            lastChIndex = i = consumeQuotedText(text, 41 /* CharCode.CLOSE_PAREN */, i, endIndex);\n        }\n        else if (ch > 32 /* CharCode.SPACE */) {\n            // if we have a non-whitespace character then capture its location\n            lastChIndex = i;\n        }\n        ch3 = ch2;\n        ch2 = ch1;\n        ch1 = ch & -33 /* CharCode.UPPER_CASE */;\n    }\n    return lastChIndex;\n}\n/**\n * Consumes all of the quoted characters.\n *\n * @param text Text to scan\n * @param quoteCharCode CharCode of either `\"` or `'` quote or `)` for `url(...)`.\n * @param startIndex Starting index of character where the scan should start.\n * @param endIndex Ending index of character where the scan should end.\n * @returns Index after quoted characters.\n */\nfunction consumeQuotedText(text, quoteCharCode, startIndex, endIndex) {\n    let ch1 = -1; // 1st previous character\n    let index = startIndex;\n    while (index < endIndex) {\n        const ch = text.charCodeAt(index++);\n        if (ch == quoteCharCode && ch1 !== 92 /* CharCode.BACK_SLASH */) {\n            return index;\n        }\n        if (ch == 92 /* CharCode.BACK_SLASH */ && ch1 === 92 /* CharCode.BACK_SLASH */) {\n            // two back slashes cancel each other out. For example `\"\\\\\"` should properly end the\n            // quotation. (It should not assume that the last `\"` is escaped.)\n            ch1 = 0;\n        }\n        else {\n            ch1 = ch;\n        }\n    }\n    throw ngDevMode ? malformedStyleError(text, String.fromCharCode(quoteCharCode), endIndex) :\n        new Error();\n}\nfunction malformedStyleError(text, expecting, index) {\n    ngDevMode && assertEqual(typeof text === 'string', true, 'String expected here');\n    throw throwError(`Malformed style at location ${index} in string '` + text.substring(0, index) + '[>>' +\n        text.substring(index, index + 1) + '<<]' + text.slice(index + 1) +\n        `'. Expecting '${expecting}'.`);\n}\n\n/**\n * Update a style binding on an element with the provided value.\n *\n * If the style value is falsy then it will be removed from the element\n * (or assigned a different value depending if there are any styles placed\n * on the element with `styleMap` or any static styles that are\n * present from when the element was created with `styling`).\n *\n * Note that the styling element is updated as part of `stylingApply`.\n *\n * @param prop A valid CSS property.\n * @param value New value to write (`null` or an empty string to remove).\n * @param suffix Optional suffix. Used with scalar values to add unit such as `px`.\n *\n * Note that this will apply the provided style value to the host element if this function is called\n * within a host binding function.\n *\n * @codeGenApi\n */\nfunction ɵɵstyleProp(prop, value, suffix) {\n    checkStylingProperty(prop, value, suffix, false);\n    return ɵɵstyleProp;\n}\n/**\n * Update a class binding on an element with the provided value.\n *\n * This instruction is meant to handle the `[class.foo]=\"exp\"` case and,\n * therefore, the class binding itself must already be allocated using\n * `styling` within the creation block.\n *\n * @param prop A valid CSS class (only one).\n * @param value A true/false value which will turn the class on or off.\n *\n * Note that this will apply the provided class value to the host element if this function\n * is called within a host binding function.\n *\n * @codeGenApi\n */\nfunction ɵɵclassProp(className, value) {\n    checkStylingProperty(className, value, null, true);\n    return ɵɵclassProp;\n}\n/**\n * Update style bindings using an object literal on an element.\n *\n * This instruction is meant to apply styling via the `[style]=\"exp\"` template bindings.\n * When styles are applied to the element they will then be updated with respect to\n * any styles/classes set via `styleProp`. If any styles are set to falsy\n * then they will be removed from the element.\n *\n * Note that the styling instruction will not be applied until `stylingApply` is called.\n *\n * @param styles A key/value style map of the styles that will be applied to the given element.\n *        Any missing styles (that have already been applied to the element beforehand) will be\n *        removed (unset) from the element's styling.\n *\n * Note that this will apply the provided styleMap value to the host element if this function\n * is called within a host binding.\n *\n * @codeGenApi\n */\nfunction ɵɵstyleMap(styles) {\n    checkStylingMap(styleKeyValueArraySet, styleStringParser, styles, false);\n}\n/**\n * Parse text as style and add values to KeyValueArray.\n *\n * This code is pulled out to a separate function so that it can be tree shaken away if it is not\n * needed. It is only referenced from `ɵɵstyleMap`.\n *\n * @param keyValueArray KeyValueArray to add parsed values to.\n * @param text text to parse.\n */\nfunction styleStringParser(keyValueArray, text) {\n    for (let i = parseStyle(text); i >= 0; i = parseStyleNext(text, i)) {\n        styleKeyValueArraySet(keyValueArray, getLastParsedKey(text), getLastParsedValue(text));\n    }\n}\n/**\n * Update class bindings using an object literal or class-string on an element.\n *\n * This instruction is meant to apply styling via the `[class]=\"exp\"` template bindings.\n * When classes are applied to the element they will then be updated with\n * respect to any styles/classes set via `classProp`. If any\n * classes are set to falsy then they will be removed from the element.\n *\n * Note that the styling instruction will not be applied until `stylingApply` is called.\n * Note that this will the provided classMap value to the host element if this function is called\n * within a host binding.\n *\n * @param classes A key/value map or string of CSS classes that will be added to the\n *        given element. Any missing classes (that have already been applied to the element\n *        beforehand) will be removed (unset) from the element's list of CSS classes.\n *\n * @codeGenApi\n */\nfunction ɵɵclassMap(classes) {\n    checkStylingMap(classKeyValueArraySet, classStringParser, classes, true);\n}\n/**\n * Parse text as class and add values to KeyValueArray.\n *\n * This code is pulled out to a separate function so that it can be tree shaken away if it is not\n * needed. It is only referenced from `ɵɵclassMap`.\n *\n * @param keyValueArray KeyValueArray to add parsed values to.\n * @param text text to parse.\n */\nfunction classStringParser(keyValueArray, text) {\n    for (let i = parseClassName(text); i >= 0; i = parseClassNameNext(text, i)) {\n        keyValueArraySet(keyValueArray, getLastParsedKey(text), true);\n    }\n}\n/**\n * Common code between `ɵɵclassProp` and `ɵɵstyleProp`.\n *\n * @param prop property name.\n * @param value binding value.\n * @param suffix suffix for the property (e.g. `em` or `px`)\n * @param isClassBased `true` if `class` change (`false` if `style`)\n */\nfunction checkStylingProperty(prop, value, suffix, isClassBased) {\n    const lView = getLView();\n    const tView = getTView();\n    // Styling instructions use 2 slots per binding.\n    // 1. one for the value / TStylingKey\n    // 2. one for the intermittent-value / TStylingRange\n    const bindingIndex = incrementBindingIndex(2);\n    if (tView.firstUpdatePass) {\n        stylingFirstUpdatePass(tView, prop, bindingIndex, isClassBased);\n    }\n    if (value !== NO_CHANGE && bindingUpdated(lView, bindingIndex, value)) {\n        const tNode = tView.data[getSelectedIndex()];\n        updateStyling(tView, tNode, lView, lView[RENDERER], prop, lView[bindingIndex + 1] = normalizeSuffix(value, suffix), isClassBased, bindingIndex);\n    }\n}\n/**\n * Common code between `ɵɵclassMap` and `ɵɵstyleMap`.\n *\n * @param keyValueArraySet (See `keyValueArraySet` in \"util/array_utils\") Gets passed in as a\n *        function so that `style` can be processed. This is done for tree shaking purposes.\n * @param stringParser Parser used to parse `value` if `string`. (Passed in as `style` and `class`\n *        have different parsers.)\n * @param value bound value from application\n * @param isClassBased `true` if `class` change (`false` if `style`)\n */\nfunction checkStylingMap(keyValueArraySet, stringParser, value, isClassBased) {\n    const tView = getTView();\n    const bindingIndex = incrementBindingIndex(2);\n    if (tView.firstUpdatePass) {\n        stylingFirstUpdatePass(tView, null, bindingIndex, isClassBased);\n    }\n    const lView = getLView();\n    if (value !== NO_CHANGE && bindingUpdated(lView, bindingIndex, value)) {\n        // `getSelectedIndex()` should be here (rather than in instruction) so that it is guarded by the\n        // if so as not to read unnecessarily.\n        const tNode = tView.data[getSelectedIndex()];\n        if (hasStylingInputShadow(tNode, isClassBased) && !isInHostBindings(tView, bindingIndex)) {\n            if (ngDevMode) {\n                // verify that if we are shadowing then `TData` is appropriately marked so that we skip\n                // processing this binding in styling resolution.\n                const tStylingKey = tView.data[bindingIndex];\n                assertEqual(Array.isArray(tStylingKey) ? tStylingKey[1] : tStylingKey, false, 'Styling linked list shadow input should be marked as \\'false\\'');\n            }\n            // VE does not concatenate the static portion like we are doing here.\n            // Instead VE just ignores the static completely if dynamic binding is present.\n            // Because of locality we have already set the static portion because we don't know if there\n            // is a dynamic portion until later. If we would ignore the static portion it would look like\n            // the binding has removed it. This would confuse `[ngStyle]`/`[ngClass]` to do the wrong\n            // thing as it would think that the static portion was removed. For this reason we\n            // concatenate it so that `[ngStyle]`/`[ngClass]`  can continue to work on changed.\n            let staticPrefix = isClassBased ? tNode.classesWithoutHost : tNode.stylesWithoutHost;\n            ngDevMode && isClassBased === false && staticPrefix !== null &&\n                assertEqual(staticPrefix.endsWith(';'), true, 'Expecting static portion to end with \\';\\'');\n            if (staticPrefix !== null) {\n                // We want to make sure that falsy values of `value` become empty strings.\n                value = concatStringsWithSpace(staticPrefix, value ? value : '');\n            }\n            // Given `<div [style] my-dir>` such that `my-dir` has `@Input('style')`.\n            // This takes over the `[style]` binding. (Same for `[class]`)\n            setDirectiveInputsWhichShadowsStyling(tView, tNode, lView, value, isClassBased);\n        }\n        else {\n            updateStylingMap(tView, tNode, lView, lView[RENDERER], lView[bindingIndex + 1], lView[bindingIndex + 1] = toStylingKeyValueArray(keyValueArraySet, stringParser, value), isClassBased, bindingIndex);\n        }\n    }\n}\n/**\n * Determines when the binding is in `hostBindings` section\n *\n * @param tView Current `TView`\n * @param bindingIndex index of binding which we would like if it is in `hostBindings`\n */\nfunction isInHostBindings(tView, bindingIndex) {\n    // All host bindings are placed after the expando section.\n    return bindingIndex >= tView.expandoStartIndex;\n}\n/**\n * Collects the necessary information to insert the binding into a linked list of style bindings\n * using `insertTStylingBinding`.\n *\n * @param tView `TView` where the binding linked list will be stored.\n * @param tStylingKey Property/key of the binding.\n * @param bindingIndex Index of binding associated with the `prop`\n * @param isClassBased `true` if `class` change (`false` if `style`)\n */\nfunction stylingFirstUpdatePass(tView, tStylingKey, bindingIndex, isClassBased) {\n    ngDevMode && assertFirstUpdatePass(tView);\n    const tData = tView.data;\n    if (tData[bindingIndex + 1] === null) {\n        // The above check is necessary because we don't clear first update pass until first successful\n        // (no exception) template execution. This prevents the styling instruction from double adding\n        // itself to the list.\n        // `getSelectedIndex()` should be here (rather than in instruction) so that it is guarded by the\n        // if so as not to read unnecessarily.\n        const tNode = tData[getSelectedIndex()];\n        ngDevMode && assertDefined(tNode, 'TNode expected');\n        const isHostBindings = isInHostBindings(tView, bindingIndex);\n        if (hasStylingInputShadow(tNode, isClassBased) && tStylingKey === null && !isHostBindings) {\n            // `tStylingKey === null` implies that we are either `[style]` or `[class]` binding.\n            // If there is a directive which uses `@Input('style')` or `@Input('class')` than\n            // we need to neutralize this binding since that directive is shadowing it.\n            // We turn this into a noop by setting the key to `false`\n            tStylingKey = false;\n        }\n        tStylingKey = wrapInStaticStylingKey(tData, tNode, tStylingKey, isClassBased);\n        insertTStylingBinding(tData, tNode, tStylingKey, bindingIndex, isHostBindings, isClassBased);\n    }\n}\n/**\n * Adds static styling information to the binding if applicable.\n *\n * The linked list of styles not only stores the list and keys, but also stores static styling\n * information on some of the keys. This function determines if the key should contain the styling\n * information and computes it.\n *\n * See `TStylingStatic` for more details.\n *\n * @param tData `TData` where the linked list is stored.\n * @param tNode `TNode` for which the styling is being computed.\n * @param stylingKey `TStylingKeyPrimitive` which may need to be wrapped into `TStylingKey`\n * @param isClassBased `true` if `class` (`false` if `style`)\n */\nfunction wrapInStaticStylingKey(tData, tNode, stylingKey, isClassBased) {\n    const hostDirectiveDef = getCurrentDirectiveDef(tData);\n    let residual = isClassBased ? tNode.residualClasses : tNode.residualStyles;\n    if (hostDirectiveDef === null) {\n        // We are in template node.\n        // If template node already had styling instruction then it has already collected the static\n        // styling and there is no need to collect them again. We know that we are the first styling\n        // instruction because the `TNode.*Bindings` points to 0 (nothing has been inserted yet).\n        const isFirstStylingInstructionInTemplate = (isClassBased ? tNode.classBindings : tNode.styleBindings) === 0;\n        if (isFirstStylingInstructionInTemplate) {\n            // It would be nice to be able to get the statics from `mergeAttrs`, however, at this point\n            // they are already merged and it would not be possible to figure which property belongs where\n            // in the priority.\n            stylingKey = collectStylingFromDirectives(null, tData, tNode, stylingKey, isClassBased);\n            stylingKey = collectStylingFromTAttrs(stylingKey, tNode.attrs, isClassBased);\n            // We know that if we have styling binding in template we can't have residual.\n            residual = null;\n        }\n    }\n    else {\n        // We are in host binding node and there was no binding instruction in template node.\n        // This means that we need to compute the residual.\n        const directiveStylingLast = tNode.directiveStylingLast;\n        const isFirstStylingInstructionInHostBinding = directiveStylingLast === -1 || tData[directiveStylingLast] !== hostDirectiveDef;\n        if (isFirstStylingInstructionInHostBinding) {\n            stylingKey =\n                collectStylingFromDirectives(hostDirectiveDef, tData, tNode, stylingKey, isClassBased);\n            if (residual === null) {\n                // - If `null` than either:\n                //    - Template styling instruction already ran and it has consumed the static\n                //      styling into its `TStylingKey` and so there is no need to update residual. Instead\n                //      we need to update the `TStylingKey` associated with the first template node\n                //      instruction. OR\n                //    - Some other styling instruction ran and determined that there are no residuals\n                let templateStylingKey = getTemplateHeadTStylingKey(tData, tNode, isClassBased);\n                if (templateStylingKey !== undefined && Array.isArray(templateStylingKey)) {\n                    // Only recompute if `templateStylingKey` had static values. (If no static value found\n                    // then there is nothing to do since this operation can only produce less static keys, not\n                    // more.)\n                    templateStylingKey = collectStylingFromDirectives(null, tData, tNode, templateStylingKey[1] /* unwrap previous statics */, isClassBased);\n                    templateStylingKey =\n                        collectStylingFromTAttrs(templateStylingKey, tNode.attrs, isClassBased);\n                    setTemplateHeadTStylingKey(tData, tNode, isClassBased, templateStylingKey);\n                }\n            }\n            else {\n                // We only need to recompute residual if it is not `null`.\n                // - If existing residual (implies there was no template styling). This means that some of\n                //   the statics may have moved from the residual to the `stylingKey` and so we have to\n                //   recompute.\n                // - If `undefined` this is the first time we are running.\n                residual = collectResidual(tData, tNode, isClassBased);\n            }\n        }\n    }\n    if (residual !== undefined) {\n        isClassBased ? (tNode.residualClasses = residual) : (tNode.residualStyles = residual);\n    }\n    return stylingKey;\n}\n/**\n * Retrieve the `TStylingKey` for the template styling instruction.\n *\n * This is needed since `hostBinding` styling instructions are inserted after the template\n * instruction. While the template instruction needs to update the residual in `TNode` the\n * `hostBinding` instructions need to update the `TStylingKey` of the template instruction because\n * the template instruction is downstream from the `hostBindings` instructions.\n *\n * @param tData `TData` where the linked list is stored.\n * @param tNode `TNode` for which the styling is being computed.\n * @param isClassBased `true` if `class` (`false` if `style`)\n * @return `TStylingKey` if found or `undefined` if not found.\n */\nfunction getTemplateHeadTStylingKey(tData, tNode, isClassBased) {\n    const bindings = isClassBased ? tNode.classBindings : tNode.styleBindings;\n    if (getTStylingRangeNext(bindings) === 0) {\n        // There does not seem to be a styling instruction in the `template`.\n        return undefined;\n    }\n    return tData[getTStylingRangePrev(bindings)];\n}\n/**\n * Update the `TStylingKey` of the first template instruction in `TNode`.\n *\n * Logically `hostBindings` styling instructions are of lower priority than that of the template.\n * However, they execute after the template styling instructions. This means that they get inserted\n * in front of the template styling instructions.\n *\n * If we have a template styling instruction and a new `hostBindings` styling instruction is\n * executed it means that it may need to steal static fields from the template instruction. This\n * method allows us to update the first template instruction `TStylingKey` with a new value.\n *\n * Assume:\n * ```\n * <div my-dir style=\"color: red\" [style.color]=\"tmplExp\"></div>\n *\n * @Directive({\n *   host: {\n *     'style': 'width: 100px',\n *     '[style.color]': 'dirExp',\n *   }\n * })\n * class MyDir {}\n * ```\n *\n * when `[style.color]=\"tmplExp\"` executes it creates this data structure.\n * ```\n *  ['', 'color', 'color', 'red', 'width', '100px'],\n * ```\n *\n * The reason for this is that the template instruction does not know if there are styling\n * instructions and must assume that there are none and must collect all of the static styling.\n * (both\n * `color' and 'width`)\n *\n * When `'[style.color]': 'dirExp',` executes we need to insert a new data into the linked list.\n * ```\n *  ['', 'color', 'width', '100px'],  // newly inserted\n *  ['', 'color', 'color', 'red', 'width', '100px'], // this is wrong\n * ```\n *\n * Notice that the template statics is now wrong as it incorrectly contains `width` so we need to\n * update it like so:\n * ```\n *  ['', 'color', 'width', '100px'],\n *  ['', 'color', 'color', 'red'],    // UPDATE\n * ```\n *\n * @param tData `TData` where the linked list is stored.\n * @param tNode `TNode` for which the styling is being computed.\n * @param isClassBased `true` if `class` (`false` if `style`)\n * @param tStylingKey New `TStylingKey` which is replacing the old one.\n */\nfunction setTemplateHeadTStylingKey(tData, tNode, isClassBased, tStylingKey) {\n    const bindings = isClassBased ? tNode.classBindings : tNode.styleBindings;\n    ngDevMode &&\n        assertNotEqual(getTStylingRangeNext(bindings), 0, 'Expecting to have at least one template styling binding.');\n    tData[getTStylingRangePrev(bindings)] = tStylingKey;\n}\n/**\n * Collect all static values after the current `TNode.directiveStylingLast` index.\n *\n * Collect the remaining styling information which has not yet been collected by an existing\n * styling instruction.\n *\n * @param tData `TData` where the `DirectiveDefs` are stored.\n * @param tNode `TNode` which contains the directive range.\n * @param isClassBased `true` if `class` (`false` if `style`)\n */\nfunction collectResidual(tData, tNode, isClassBased) {\n    let residual = undefined;\n    const directiveEnd = tNode.directiveEnd;\n    ngDevMode &&\n        assertNotEqual(tNode.directiveStylingLast, -1, 'By the time this function gets called at least one hostBindings-node styling instruction must have executed.');\n    // We add `1 + tNode.directiveStart` because we need to skip the current directive (as we are\n    // collecting things after the last `hostBindings` directive which had a styling instruction.)\n    for (let i = 1 + tNode.directiveStylingLast; i < directiveEnd; i++) {\n        const attrs = tData[i].hostAttrs;\n        residual = collectStylingFromTAttrs(residual, attrs, isClassBased);\n    }\n    return collectStylingFromTAttrs(residual, tNode.attrs, isClassBased);\n}\n/**\n * Collect the static styling information with lower priority than `hostDirectiveDef`.\n *\n * (This is opposite of residual styling.)\n *\n * @param hostDirectiveDef `DirectiveDef` for which we want to collect lower priority static\n *        styling. (Or `null` if template styling)\n * @param tData `TData` where the linked list is stored.\n * @param tNode `TNode` for which the styling is being computed.\n * @param stylingKey Existing `TStylingKey` to update or wrap.\n * @param isClassBased `true` if `class` (`false` if `style`)\n */\nfunction collectStylingFromDirectives(hostDirectiveDef, tData, tNode, stylingKey, isClassBased) {\n    // We need to loop because there can be directives which have `hostAttrs` but don't have\n    // `hostBindings` so this loop catches up to the current directive..\n    let currentDirective = null;\n    const directiveEnd = tNode.directiveEnd;\n    let directiveStylingLast = tNode.directiveStylingLast;\n    if (directiveStylingLast === -1) {\n        directiveStylingLast = tNode.directiveStart;\n    }\n    else {\n        directiveStylingLast++;\n    }\n    while (directiveStylingLast < directiveEnd) {\n        currentDirective = tData[directiveStylingLast];\n        ngDevMode && assertDefined(currentDirective, 'expected to be defined');\n        stylingKey = collectStylingFromTAttrs(stylingKey, currentDirective.hostAttrs, isClassBased);\n        if (currentDirective === hostDirectiveDef)\n            break;\n        directiveStylingLast++;\n    }\n    if (hostDirectiveDef !== null) {\n        // we only advance the styling cursor if we are collecting data from host bindings.\n        // Template executes before host bindings and so if we would update the index,\n        // host bindings would not get their statics.\n        tNode.directiveStylingLast = directiveStylingLast;\n    }\n    return stylingKey;\n}\n/**\n * Convert `TAttrs` into `TStylingStatic`.\n *\n * @param stylingKey existing `TStylingKey` to update or wrap.\n * @param attrs `TAttributes` to process.\n * @param isClassBased `true` if `class` (`false` if `style`)\n */\nfunction collectStylingFromTAttrs(stylingKey, attrs, isClassBased) {\n    const desiredMarker = isClassBased ? 1 /* AttributeMarker.Classes */ : 2 /* AttributeMarker.Styles */;\n    let currentMarker = -1 /* AttributeMarker.ImplicitAttributes */;\n    if (attrs !== null) {\n        for (let i = 0; i < attrs.length; i++) {\n            const item = attrs[i];\n            if (typeof item === 'number') {\n                currentMarker = item;\n            }\n            else {\n                if (currentMarker === desiredMarker) {\n                    if (!Array.isArray(stylingKey)) {\n                        stylingKey = stylingKey === undefined ? [] : ['', stylingKey];\n                    }\n                    keyValueArraySet(stylingKey, item, isClassBased ? true : attrs[++i]);\n                }\n            }\n        }\n    }\n    return stylingKey === undefined ? null : stylingKey;\n}\n/**\n * Convert user input to `KeyValueArray`.\n *\n * This function takes user input which could be `string`, Object literal, or iterable and converts\n * it into a consistent representation. The output of this is `KeyValueArray` (which is an array\n * where\n * even indexes contain keys and odd indexes contain values for those keys).\n *\n * The advantage of converting to `KeyValueArray` is that we can perform diff in an input\n * independent\n * way.\n * (ie we can compare `foo bar` to `['bar', 'baz'] and determine a set of changes which need to be\n * applied)\n *\n * The fact that `KeyValueArray` is sorted is very important because it allows us to compute the\n * difference in linear fashion without the need to allocate any additional data.\n *\n * For example if we kept this as a `Map` we would have to iterate over previous `Map` to determine\n * which values need to be deleted, over the new `Map` to determine additions, and we would have to\n * keep additional `Map` to keep track of duplicates or items which have not yet been visited.\n *\n * @param keyValueArraySet (See `keyValueArraySet` in \"util/array_utils\") Gets passed in as a\n *        function so that `style` can be processed. This is done\n *        for tree shaking purposes.\n * @param stringParser The parser is passed in so that it will be tree shakable. See\n *        `styleStringParser` and `classStringParser`\n * @param value The value to parse/convert to `KeyValueArray`\n */\nfunction toStylingKeyValueArray(keyValueArraySet, stringParser, value) {\n    if (value == null /*|| value === undefined */ || value === '')\n        return EMPTY_ARRAY;\n    const styleKeyValueArray = [];\n    const unwrappedValue = unwrapSafeValue(value);\n    if (Array.isArray(unwrappedValue)) {\n        for (let i = 0; i < unwrappedValue.length; i++) {\n            keyValueArraySet(styleKeyValueArray, unwrappedValue[i], true);\n        }\n    }\n    else if (typeof unwrappedValue === 'object') {\n        for (const key in unwrappedValue) {\n            if (unwrappedValue.hasOwnProperty(key)) {\n                keyValueArraySet(styleKeyValueArray, key, unwrappedValue[key]);\n            }\n        }\n    }\n    else if (typeof unwrappedValue === 'string') {\n        stringParser(styleKeyValueArray, unwrappedValue);\n    }\n    else {\n        ngDevMode &&\n            throwError('Unsupported styling type ' + typeof unwrappedValue + ': ' + unwrappedValue);\n    }\n    return styleKeyValueArray;\n}\n/**\n * Set a `value` for a `key`.\n *\n * See: `keyValueArraySet` for details\n *\n * @param keyValueArray KeyValueArray to add to.\n * @param key Style key to add.\n * @param value The value to set.\n */\nfunction styleKeyValueArraySet(keyValueArray, key, value) {\n    keyValueArraySet(keyValueArray, key, unwrapSafeValue(value));\n}\n/**\n * Class-binding-specific function for setting the `value` for a `key`.\n *\n * See: `keyValueArraySet` for details\n *\n * @param keyValueArray KeyValueArray to add to.\n * @param key Style key to add.\n * @param value The value to set.\n */\nfunction classKeyValueArraySet(keyValueArray, key, value) {\n    // We use `classList.add` to eventually add the CSS classes to the DOM node. Any value passed into\n    // `add` is stringified and added to the `class` attribute, e.g. even null, undefined or numbers\n    // will be added. Stringify the key here so that our internal data structure matches the value in\n    // the DOM. The only exceptions are empty strings and strings that contain spaces for which\n    // the browser throws an error. We ignore such values, because the error is somewhat cryptic.\n    const stringKey = String(key);\n    if (stringKey !== '' && !stringKey.includes(' ')) {\n        keyValueArraySet(keyValueArray, stringKey, value);\n    }\n}\n/**\n * Update map based styling.\n *\n * Map based styling could be anything which contains more than one binding. For example `string`,\n * or object literal. Dealing with all of these types would complicate the logic so\n * instead this function expects that the complex input is first converted into normalized\n * `KeyValueArray`. The advantage of normalization is that we get the values sorted, which makes it\n * very cheap to compute deltas between the previous and current value.\n *\n * @param tView Associated `TView.data` contains the linked list of binding priorities.\n * @param tNode `TNode` where the binding is located.\n * @param lView `LView` contains the values associated with other styling binding at this `TNode`.\n * @param renderer Renderer to use if any updates.\n * @param oldKeyValueArray Previous value represented as `KeyValueArray`\n * @param newKeyValueArray Current value represented as `KeyValueArray`\n * @param isClassBased `true` if `class` (`false` if `style`)\n * @param bindingIndex Binding index of the binding.\n */\nfunction updateStylingMap(tView, tNode, lView, renderer, oldKeyValueArray, newKeyValueArray, isClassBased, bindingIndex) {\n    if (oldKeyValueArray === NO_CHANGE) {\n        // On first execution the oldKeyValueArray is NO_CHANGE => treat it as empty KeyValueArray.\n        oldKeyValueArray = EMPTY_ARRAY;\n    }\n    let oldIndex = 0;\n    let newIndex = 0;\n    let oldKey = 0 < oldKeyValueArray.length ? oldKeyValueArray[0] : null;\n    let newKey = 0 < newKeyValueArray.length ? newKeyValueArray[0] : null;\n    while (oldKey !== null || newKey !== null) {\n        ngDevMode && assertLessThan(oldIndex, 999, 'Are we stuck in infinite loop?');\n        ngDevMode && assertLessThan(newIndex, 999, 'Are we stuck in infinite loop?');\n        const oldValue = oldIndex < oldKeyValueArray.length ? oldKeyValueArray[oldIndex + 1] : undefined;\n        const newValue = newIndex < newKeyValueArray.length ? newKeyValueArray[newIndex + 1] : undefined;\n        let setKey = null;\n        let setValue = undefined;\n        if (oldKey === newKey) {\n            // UPDATE: Keys are equal => new value is overwriting old value.\n            oldIndex += 2;\n            newIndex += 2;\n            if (oldValue !== newValue) {\n                setKey = newKey;\n                setValue = newValue;\n            }\n        }\n        else if (newKey === null || oldKey !== null && oldKey < newKey) {\n            // DELETE: oldKey key is missing or we did not find the oldKey in the newValue\n            // (because the keyValueArray is sorted and `newKey` is found later alphabetically).\n            // `\"background\" < \"color\"` so we need to delete `\"background\"` because it is not found in the\n            // new array.\n            oldIndex += 2;\n            setKey = oldKey;\n        }\n        else {\n            // CREATE: newKey's is earlier alphabetically than oldKey's (or no oldKey) => we have new key.\n            // `\"color\" > \"background\"` so we need to add `color` because it is in new array but not in\n            // old array.\n            ngDevMode && assertDefined(newKey, 'Expecting to have a valid key');\n            newIndex += 2;\n            setKey = newKey;\n            setValue = newValue;\n        }\n        if (setKey !== null) {\n            updateStyling(tView, tNode, lView, renderer, setKey, setValue, isClassBased, bindingIndex);\n        }\n        oldKey = oldIndex < oldKeyValueArray.length ? oldKeyValueArray[oldIndex] : null;\n        newKey = newIndex < newKeyValueArray.length ? newKeyValueArray[newIndex] : null;\n    }\n}\n/**\n * Update a simple (property name) styling.\n *\n * This function takes `prop` and updates the DOM to that value. The function takes the binding\n * value as well as binding priority into consideration to determine which value should be written\n * to DOM. (For example it may be determined that there is a higher priority overwrite which blocks\n * the DOM write, or if the value goes to `undefined` a lower priority overwrite may be consulted.)\n *\n * @param tView Associated `TView.data` contains the linked list of binding priorities.\n * @param tNode `TNode` where the binding is located.\n * @param lView `LView` contains the values associated with other styling binding at this `TNode`.\n * @param renderer Renderer to use if any updates.\n * @param prop Either style property name or a class name.\n * @param value Either style value for `prop` or `true`/`false` if `prop` is class.\n * @param isClassBased `true` if `class` (`false` if `style`)\n * @param bindingIndex Binding index of the binding.\n */\nfunction updateStyling(tView, tNode, lView, renderer, prop, value, isClassBased, bindingIndex) {\n    if (!(tNode.type & 3 /* TNodeType.AnyRNode */)) {\n        // It is possible to have styling on non-elements (such as ng-container).\n        // This is rare, but it does happen. In such a case, just ignore the binding.\n        return;\n    }\n    const tData = tView.data;\n    const tRange = tData[bindingIndex + 1];\n    const higherPriorityValue = getTStylingRangeNextDuplicate(tRange) ?\n        findStylingValue(tData, tNode, lView, prop, getTStylingRangeNext(tRange), isClassBased) :\n        undefined;\n    if (!isStylingValuePresent(higherPriorityValue)) {\n        // We don't have a next duplicate, or we did not find a duplicate value.\n        if (!isStylingValuePresent(value)) {\n            // We should delete current value or restore to lower priority value.\n            if (getTStylingRangePrevDuplicate(tRange)) {\n                // We have a possible prev duplicate, let's retrieve it.\n                value = findStylingValue(tData, null, lView, prop, bindingIndex, isClassBased);\n            }\n        }\n        const rNode = getNativeByIndex(getSelectedIndex(), lView);\n        applyStyling(renderer, isClassBased, rNode, prop, value);\n    }\n}\n/**\n * Search for styling value with higher priority which is overwriting current value, or a\n * value of lower priority to which we should fall back if the value is `undefined`.\n *\n * When value is being applied at a location, related values need to be consulted.\n * - If there is a higher priority binding, we should be using that one instead.\n *   For example `<div  [style]=\"{color:exp1}\" [style.color]=\"exp2\">` change to `exp1`\n *   requires that we check `exp2` to see if it is set to value other than `undefined`.\n * - If there is a lower priority binding and we are changing to `undefined`\n *   For example `<div  [style]=\"{color:exp1}\" [style.color]=\"exp2\">` change to `exp2` to\n *   `undefined` requires that we check `exp1` (and static values) and use that as new value.\n *\n * NOTE: The styling stores two values.\n * 1. The raw value which came from the application is stored at `index + 0` location. (This value\n *    is used for dirty checking).\n * 2. The normalized value is stored at `index + 1`.\n *\n * @param tData `TData` used for traversing the priority.\n * @param tNode `TNode` to use for resolving static styling. Also controls search direction.\n *   - `TNode` search next and quit as soon as `isStylingValuePresent(value)` is true.\n *      If no value found consult `tNode.residualStyle`/`tNode.residualClass` for default value.\n *   - `null` search prev and go all the way to end. Return last value where\n *     `isStylingValuePresent(value)` is true.\n * @param lView `LView` used for retrieving the actual values.\n * @param prop Property which we are interested in.\n * @param index Starting index in the linked list of styling bindings where the search should start.\n * @param isClassBased `true` if `class` (`false` if `style`)\n */\nfunction findStylingValue(tData, tNode, lView, prop, index, isClassBased) {\n    // `TNode` to use for resolving static styling. Also controls search direction.\n    //   - `TNode` search next and quit as soon as `isStylingValuePresent(value)` is true.\n    //      If no value found consult `tNode.residualStyle`/`tNode.residualClass` for default value.\n    //   - `null` search prev and go all the way to end. Return last value where\n    //     `isStylingValuePresent(value)` is true.\n    const isPrevDirection = tNode === null;\n    let value = undefined;\n    while (index > 0) {\n        const rawKey = tData[index];\n        const containsStatics = Array.isArray(rawKey);\n        // Unwrap the key if we contain static values.\n        const key = containsStatics ? rawKey[1] : rawKey;\n        const isStylingMap = key === null;\n        let valueAtLViewIndex = lView[index + 1];\n        if (valueAtLViewIndex === NO_CHANGE) {\n            // In firstUpdatePass the styling instructions create a linked list of styling.\n            // On subsequent passes it is possible for a styling instruction to try to read a binding\n            // which\n            // has not yet executed. In that case we will find `NO_CHANGE` and we should assume that\n            // we have `undefined` (or empty array in case of styling-map instruction) instead. This\n            // allows the resolution to apply the value (which may later be overwritten when the\n            // binding actually executes.)\n            valueAtLViewIndex = isStylingMap ? EMPTY_ARRAY : undefined;\n        }\n        let currentValue = isStylingMap ? keyValueArrayGet(valueAtLViewIndex, prop) :\n            (key === prop ? valueAtLViewIndex : undefined);\n        if (containsStatics && !isStylingValuePresent(currentValue)) {\n            currentValue = keyValueArrayGet(rawKey, prop);\n        }\n        if (isStylingValuePresent(currentValue)) {\n            value = currentValue;\n            if (isPrevDirection) {\n                return value;\n            }\n        }\n        const tRange = tData[index + 1];\n        index = isPrevDirection ? getTStylingRangePrev(tRange) : getTStylingRangeNext(tRange);\n    }\n    if (tNode !== null) {\n        // in case where we are going in next direction AND we did not find anything, we need to\n        // consult residual styling\n        let residual = isClassBased ? tNode.residualClasses : tNode.residualStyles;\n        if (residual != null /** OR residual !=== undefined */) {\n            value = keyValueArrayGet(residual, prop);\n        }\n    }\n    return value;\n}\n/**\n * Determines if the binding value should be used (or if the value is 'undefined' and hence priority\n * resolution should be used.)\n *\n * @param value Binding style value.\n */\nfunction isStylingValuePresent(value) {\n    // Currently only `undefined` value is considered non-binding. That is `undefined` says I don't\n    // have an opinion as to what this binding should be and you should consult other bindings by\n    // priority to determine the valid value.\n    // This is extracted into a single function so that we have a single place to control this.\n    return value !== undefined;\n}\n/**\n * Normalizes and/or adds a suffix to the value.\n *\n * If value is `null`/`undefined` no suffix is added\n * @param value\n * @param suffix\n */\nfunction normalizeSuffix(value, suffix) {\n    if (value == null || value === '') {\n        // do nothing\n        // Do not add the suffix if the value is going to be empty.\n        // As it produce invalid CSS, which the browsers will automatically omit but Domino will not.\n        // Example: `\"left\": \"px;\"` instead of `\"left\": \"\"`.\n    }\n    else if (typeof suffix === 'string') {\n        value = value + suffix;\n    }\n    else if (typeof value === 'object') {\n        value = stringify(unwrapSafeValue(value));\n    }\n    return value;\n}\n/**\n * Tests if the `TNode` has input shadow.\n *\n * An input shadow is when a directive steals (shadows) the input by using `@Input('style')` or\n * `@Input('class')` as input.\n *\n * @param tNode `TNode` which we would like to see if it has shadow.\n * @param isClassBased `true` if `class` (`false` if `style`)\n */\nfunction hasStylingInputShadow(tNode, isClassBased) {\n    return (tNode.flags & (isClassBased ? 8 /* TNodeFlags.hasClassInput */ : 16 /* TNodeFlags.hasStyleInput */)) !== 0;\n}\n\n/**\n * Create static text node\n *\n * @param index Index of the node in the data array\n * @param value Static string value to write.\n *\n * @codeGenApi\n */\nfunction ɵɵtext(index, value = '') {\n    const lView = getLView();\n    const tView = getTView();\n    const adjustedIndex = index + HEADER_OFFSET;\n    ngDevMode &&\n        assertEqual(getBindingIndex(), tView.bindingStartIndex, 'text nodes should be created before any bindings');\n    ngDevMode && assertIndexInRange(lView, adjustedIndex);\n    const tNode = tView.firstCreatePass ?\n        getOrCreateTNode(tView, adjustedIndex, 1 /* TNodeType.Text */, value, null) :\n        tView.data[adjustedIndex];\n    const textNative = _locateOrCreateTextNode(tView, lView, tNode, value, index);\n    lView[adjustedIndex] = textNative;\n    if (wasLastNodeCreated()) {\n        appendChild(tView, lView, textNative, tNode);\n    }\n    // Text nodes are self closing.\n    setCurrentTNode(tNode, false);\n}\nlet _locateOrCreateTextNode = (tView, lView, tNode, value, index) => {\n    lastNodeWasCreated(true);\n    return createTextNode(lView[RENDERER], value);\n};\n/**\n * Enables hydration code path (to lookup existing elements in DOM)\n * in addition to the regular creation mode of text nodes.\n */\nfunction locateOrCreateTextNodeImpl(tView, lView, tNode, value, index) {\n    const hydrationInfo = lView[HYDRATION];\n    const isNodeCreationMode = !hydrationInfo || isInSkipHydrationBlock$1() || isDisconnectedNode$1(hydrationInfo, index);\n    lastNodeWasCreated(isNodeCreationMode);\n    // Regular creation mode.\n    if (isNodeCreationMode) {\n        return createTextNode(lView[RENDERER], value);\n    }\n    // Hydration mode, looking up an existing element in DOM.\n    const textNative = locateNextRNode(hydrationInfo, tView, lView, tNode);\n    ngDevMode && validateMatchingNode(textNative, Node.TEXT_NODE, null, lView, tNode);\n    ngDevMode && markRNodeAsClaimedByHydration(textNative);\n    return textNative;\n}\nfunction enableLocateOrCreateTextNodeImpl() {\n    _locateOrCreateTextNode = locateOrCreateTextNodeImpl;\n}\n\n/**\n *\n * Update text content with a lone bound value\n *\n * Used when a text node has 1 interpolated value in it, an no additional text\n * surrounds that interpolated value:\n *\n * ```html\n * <div>{{v0}}</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate(v0);\n * ```\n * @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate(v0) {\n    ɵɵtextInterpolate1('', v0, '');\n    return ɵɵtextInterpolate;\n}\n/**\n *\n * Update text content with single bound value surrounded by other text.\n *\n * Used when a text node has 1 interpolated value in it:\n *\n * ```html\n * <div>prefix{{v0}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate1('prefix', v0, 'suffix');\n * ```\n * @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate1(prefix, v0, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation1(lView, prefix, v0, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate1;\n}\n/**\n *\n * Update text content with 2 bound values surrounded by other text.\n *\n * Used when a text node has 2 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate2('prefix', v0, '-', v1, 'suffix');\n * ```\n * @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate2(prefix, v0, i0, v1, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate2;\n}\n/**\n *\n * Update text content with 3 bound values surrounded by other text.\n *\n * Used when a text node has 3 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate3(\n * 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n * @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate3(prefix, v0, i0, v1, i1, v2, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate3;\n}\n/**\n *\n * Update text content with 4 bound values surrounded by other text.\n *\n * Used when a text node has 4 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate4(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n * @returns itself, so that it may be chained.\n * @see ɵɵtextInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate4(prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate4;\n}\n/**\n *\n * Update text content with 5 bound values surrounded by other text.\n *\n * Used when a text node has 5 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate5(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n * @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate5(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate5;\n}\n/**\n *\n * Update text content with 6 bound values surrounded by other text.\n *\n * Used when a text node has 6 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate6(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change. @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate6(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate6;\n}\n/**\n *\n * Update text content with 7 bound values surrounded by other text.\n *\n * Used when a text node has 7 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate7(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n * @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate7(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate7;\n}\n/**\n *\n * Update text content with 8 bound values surrounded by other text.\n *\n * Used when a text node has 8 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate8(\n *  'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n * @returns itself, so that it may be chained.\n * @see textInterpolateV\n * @codeGenApi\n */\nfunction ɵɵtextInterpolate8(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    const lView = getLView();\n    const interpolated = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolate8;\n}\n/**\n * Update text content with 9 or more bound values other surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolateV(\n *  ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *.\n * @param values The collection of values and the strings in between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n *\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵtextInterpolateV(values) {\n    const lView = getLView();\n    const interpolated = interpolationV(lView, values);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), interpolated);\n    }\n    return ɵɵtextInterpolateV;\n}\n\n/**\n *\n * Update an interpolated class on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate1('prefix', v0, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate1(prefix, v0, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate2('prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate2(prefix, v0, i0, v1, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate3(\n * 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate3(prefix, v0, i0, v1, i1, v2, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate4(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate4(prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate5(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate5(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate6(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate6(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate7(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate7(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate8(\n *  'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param i6 Static value used for concatenation only.\n * @param v7 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolate8(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n * Update an interpolated class on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolateV(\n *  ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *.\n * @param values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @codeGenApi\n */\nfunction ɵɵclassMapInterpolateV(values) {\n    const lView = getLView();\n    const interpolatedValue = interpolationV(lView, values);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n\n/**\n *\n * Update an interpolated style on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div style=\"key: {{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate1('key: ', v0, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate1(prefix, v0, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate2('key: ', v0, '; key1: ', v1, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate2(prefix, v0, i0, v1, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key2: {{v1}}; key2: {{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate3(\n *     'key: ', v0, '; key1: ', v1, '; key2: ', v2, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate3(prefix, v0, i0, v1, i1, v2, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate4(\n *     'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate4(prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate5(\n *     'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate5(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}};\n *             key5: {{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate6(\n *    'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *    'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate6(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}; key5: {{v5}};\n *             key6: {{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate7(\n *    'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *    '; key6: ', v6, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate7(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}; key5: {{v5}};\n *             key6: {{v6}}; key7: {{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate8(\n *    'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *    '; key6: ', v6, '; key7: ', v7, 'suffix');\n * ```\n *\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param i6 Static value used for concatenation only.\n * @param v7 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolate8(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n * Update an interpolated style on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  class=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}; key5: {{v5}};\n *         key6: {{v6}}; key7: {{v7}}; key8: {{v8}}; key9: {{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolateV(\n *    ['key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *     '; key6: ', v6, '; key7: ', v7, '; key8: ', v8, '; key9: ', v9, 'suffix']);\n * ```\n *.\n * @param values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '; key2: ', value1, '; key2: ', value2, ..., value99, 'suffix']`)\n * @codeGenApi\n */\nfunction ɵɵstyleMapInterpolateV(values) {\n    const lView = getLView();\n    const interpolatedValue = interpolationV(lView, values);\n    ɵɵstyleMap(interpolatedValue);\n}\n\n/**\n *\n * Update an interpolated style property on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate1(0, 'prefix', v0, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate1(prop, prefix, v0, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate1;\n}\n/**\n *\n * Update an interpolated style property on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate2(0, 'prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate2(prop, prefix, v0, i0, v1, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate2;\n}\n/**\n *\n * Update an interpolated style property on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate3(0, 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate3(prop, prefix, v0, i0, v1, i1, v2, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate3;\n}\n/**\n *\n * Update an interpolated style property on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate4(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate4(prop, prefix, v0, i0, v1, i1, v2, i2, v3, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate4;\n}\n/**\n *\n * Update an interpolated style property on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate5(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate5(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate5;\n}\n/**\n *\n * Update an interpolated style property on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate6(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate6(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate6;\n}\n/**\n *\n * Update an interpolated style property on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate7(\n *    0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate7(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate7;\n}\n/**\n *\n * Update an interpolated style property on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate8(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6,\n * '-', v7, 'suffix');\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`.\n * @param prefix Static value used for concatenation only.\n * @param v0 Value checked for change.\n * @param i0 Static value used for concatenation only.\n * @param v1 Value checked for change.\n * @param i1 Static value used for concatenation only.\n * @param v2 Value checked for change.\n * @param i2 Static value used for concatenation only.\n * @param v3 Value checked for change.\n * @param i3 Static value used for concatenation only.\n * @param v4 Value checked for change.\n * @param i4 Static value used for concatenation only.\n * @param v5 Value checked for change.\n * @param i5 Static value used for concatenation only.\n * @param v6 Value checked for change.\n * @param i6 Static value used for concatenation only.\n * @param v7 Value checked for change.\n * @param suffix Static value used for concatenation only.\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolate8(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate8;\n}\n/**\n * Update an interpolated style property on an element with 9 or more bound values surrounded by\n * text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\">\n * </div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolateV(\n *  0, ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *\n * @param styleIndex Index of style to update. This index value refers to the\n *        index of the style in the style bindings array that was passed into\n *        `styling`..\n * @param values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @param valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @returns itself, so that it may be chained.\n * @codeGenApi\n */\nfunction ɵɵstylePropInterpolateV(prop, values, valueSuffix) {\n    const lView = getLView();\n    const interpolatedValue = interpolationV(lView, values);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolateV;\n}\n\n/**\n * Update a property on a host element. Only applies to native node properties, not inputs.\n *\n * Operates on the element selected by index via the {@link select} instruction.\n *\n * @param propName Name of property. Because it is going to DOM, this is not subject to\n *        renaming as part of minification.\n * @param value New value to write.\n * @param sanitizer An optional function used to sanitize the value.\n * @returns This function returns itself so that it may be chained\n * (e.g. `property('name', ctx.name)('title', ctx.title)`)\n *\n * @codeGenApi\n */\nfunction ɵɵhostProperty(propName, value, sanitizer) {\n    const lView = getLView();\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, value, lView[RENDERER], sanitizer, true);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, propName, bindingIndex);\n    }\n    return ɵɵhostProperty;\n}\n/**\n * Updates a synthetic host binding (e.g. `[@foo]`) on a component or directive.\n *\n * This instruction is for compatibility purposes and is designed to ensure that a\n * synthetic host binding (e.g. `@HostBinding('@foo')`) properly gets rendered in\n * the component's renderer. Normally all host bindings are evaluated with the parent\n * component's renderer, but, in the case of animation @triggers, they need to be\n * evaluated with the sub component's renderer (because that's where the animation\n * triggers are defined).\n *\n * Do not use this instruction as a replacement for `elementProperty`. This instruction\n * only exists to ensure compatibility with the ViewEngine's host binding behavior.\n *\n * @param index The index of the element to update in the data array\n * @param propName Name of property. Because it is going to DOM, this is not subject to\n *        renaming as part of minification.\n * @param value New value to write.\n * @param sanitizer An optional function used to sanitize the value.\n *\n * @codeGenApi\n */\nfunction ɵɵsyntheticHostProperty(propName, value, sanitizer) {\n    const lView = getLView();\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        const tView = getTView();\n        const tNode = getSelectedTNode();\n        const currentDef = getCurrentDirectiveDef(tView.data);\n        const renderer = loadComponentRenderer(currentDef, tNode, lView);\n        elementPropertyInternal(tView, tNode, lView, propName, value, renderer, sanitizer, true);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, propName, bindingIndex);\n    }\n    return ɵɵsyntheticHostProperty;\n}\n\n/**\n * NOTE: changes to the `ngI18nClosureMode` name must be synced with `compiler-cli/src/tooling.ts`.\n */\nif (typeof ngI18nClosureMode === 'undefined') {\n    // These property accesses can be ignored because ngI18nClosureMode will be set to false\n    // when optimizing code and the whole if statement will be dropped.\n    // Make sure to refer to ngI18nClosureMode as ['ngI18nClosureMode'] for closure.\n    // NOTE: we need to have it in IIFE so that the tree-shaker is happy.\n    (function () {\n        // tslint:disable-next-line:no-toplevel-property-access\n        _global['ngI18nClosureMode'] =\n            // TODO(FW-1250): validate that this actually, you know, works.\n            // tslint:disable-next-line:no-toplevel-property-access\n            typeof goog !== 'undefined' && typeof goog.getMsg === 'function';\n    })();\n}\n\n// THIS CODE IS GENERATED - DO NOT MODIFY.\nconst u = undefined;\nfunction plural(val) {\n    const n = val, i = Math.floor(Math.abs(val)), v = val.toString().replace(/^[^.]*\\.?/, '').length;\n    if (i === 1 && v === 0)\n        return 1;\n    return 5;\n}\nvar localeEn = [\"en\", [[\"a\", \"p\"], [\"AM\", \"PM\"], u], [[\"AM\", \"PM\"], u, u], [[\"S\", \"M\", \"T\", \"W\", \"T\", \"F\", \"S\"], [\"Sun\", \"Mon\", \"Tue\", \"Wed\", \"Thu\", \"Fri\", \"Sat\"], [\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"], [\"Su\", \"Mo\", \"Tu\", \"We\", \"Th\", \"Fr\", \"Sa\"]], u, [[\"J\", \"F\", \"M\", \"A\", \"M\", \"J\", \"J\", \"A\", \"S\", \"O\", \"N\", \"D\"], [\"Jan\", \"Feb\", \"Mar\", \"Apr\", \"May\", \"Jun\", \"Jul\", \"Aug\", \"Sep\", \"Oct\", \"Nov\", \"Dec\"], [\"January\", \"February\", \"March\", \"April\", \"May\", \"June\", \"July\", \"August\", \"September\", \"October\", \"November\", \"December\"]], u, [[\"B\", \"A\"], [\"BC\", \"AD\"], [\"Before Christ\", \"Anno Domini\"]], 0, [6, 0], [\"M/d/yy\", \"MMM d, y\", \"MMMM d, y\", \"EEEE, MMMM d, y\"], [\"h:mm a\", \"h:mm:ss a\", \"h:mm:ss a z\", \"h:mm:ss a zzzz\"], [\"{1}, {0}\", u, \"{1} 'at' {0}\", u], [\".\", \",\", \";\", \"%\", \"+\", \"-\", \"E\", \"×\", \"‰\", \"∞\", \"NaN\", \":\"], [\"#,##0.###\", \"#,##0%\", \"¤#,##0.00\", \"#E0\"], \"USD\", \"$\", \"US Dollar\", {}, \"ltr\", plural];\n\n/**\n * This const is used to store the locale data registered with `registerLocaleData`\n */\nlet LOCALE_DATA = {};\n/**\n * Register locale data to be used internally by Angular. See the\n * [\"I18n guide\"](guide/i18n-common-format-data-locale) to know how to import additional locale\n * data.\n *\n * The signature `registerLocaleData(data: any, extraData?: any)` is deprecated since v5.1\n */\nfunction registerLocaleData(data, localeId, extraData) {\n    if (typeof localeId !== 'string') {\n        extraData = localeId;\n        localeId = data[LocaleDataIndex.LocaleId];\n    }\n    localeId = localeId.toLowerCase().replace(/_/g, '-');\n    LOCALE_DATA[localeId] = data;\n    if (extraData) {\n        LOCALE_DATA[localeId][LocaleDataIndex.ExtraData] = extraData;\n    }\n}\n/**\n * Finds the locale data for a given locale.\n *\n * @param locale The locale code.\n * @returns The locale data.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n-overview)\n */\nfunction findLocaleData(locale) {\n    const normalizedLocale = normalizeLocale(locale);\n    let match = getLocaleData(normalizedLocale);\n    if (match) {\n        return match;\n    }\n    // let's try to find a parent locale\n    const parentLocale = normalizedLocale.split('-')[0];\n    match = getLocaleData(parentLocale);\n    if (match) {\n        return match;\n    }\n    if (parentLocale === 'en') {\n        return localeEn;\n    }\n    throw new RuntimeError(701 /* RuntimeErrorCode.MISSING_LOCALE_DATA */, ngDevMode && `Missing locale data for the locale \"${locale}\".`);\n}\n/**\n * Retrieves the default currency code for the given locale.\n *\n * The default is defined as the first currency which is still in use.\n *\n * @param locale The code of the locale whose currency code we want.\n * @returns The code of the default currency for the given locale.\n *\n */\nfunction getLocaleCurrencyCode(locale) {\n    const data = findLocaleData(locale);\n    return data[LocaleDataIndex.CurrencyCode] || null;\n}\n/**\n * Retrieves the plural function used by ICU expressions to determine the plural case to use\n * for a given locale.\n * @param locale A locale code for the locale format rules to use.\n * @returns The plural function for the locale.\n * @see {@link NgPlural}\n * @see [Internationalization (i18n) Guide](/guide/i18n-overview)\n */\nfunction getLocalePluralCase(locale) {\n    const data = findLocaleData(locale);\n    return data[LocaleDataIndex.PluralCase];\n}\n/**\n * Helper function to get the given `normalizedLocale` from `LOCALE_DATA`\n * or from the global `ng.common.locale`.\n */\nfunction getLocaleData(normalizedLocale) {\n    if (!(normalizedLocale in LOCALE_DATA)) {\n        LOCALE_DATA[normalizedLocale] = _global.ng && _global.ng.common && _global.ng.common.locales &&\n            _global.ng.common.locales[normalizedLocale];\n    }\n    return LOCALE_DATA[normalizedLocale];\n}\n/**\n * Helper function to remove all the locale data from `LOCALE_DATA`.\n */\nfunction unregisterAllLocaleData() {\n    LOCALE_DATA = {};\n}\n/**\n * Index of each type of locale data from the locale data array\n */\nvar LocaleDataIndex;\n(function (LocaleDataIndex) {\n    LocaleDataIndex[LocaleDataIndex[\"LocaleId\"] = 0] = \"LocaleId\";\n    LocaleDataIndex[LocaleDataIndex[\"DayPeriodsFormat\"] = 1] = \"DayPeriodsFormat\";\n    LocaleDataIndex[LocaleDataIndex[\"DayPeriodsStandalone\"] = 2] = \"DayPeriodsStandalone\";\n    LocaleDataIndex[LocaleDataIndex[\"DaysFormat\"] = 3] = \"DaysFormat\";\n    LocaleDataIndex[LocaleDataIndex[\"DaysStandalone\"] = 4] = \"DaysStandalone\";\n    LocaleDataIndex[LocaleDataIndex[\"MonthsFormat\"] = 5] = \"MonthsFormat\";\n    LocaleDataIndex[LocaleDataIndex[\"MonthsStandalone\"] = 6] = \"MonthsStandalone\";\n    LocaleDataIndex[LocaleDataIndex[\"Eras\"] = 7] = \"Eras\";\n    LocaleDataIndex[LocaleDataIndex[\"FirstDayOfWeek\"] = 8] = \"FirstDayOfWeek\";\n    LocaleDataIndex[LocaleDataIndex[\"WeekendRange\"] = 9] = \"WeekendRange\";\n    LocaleDataIndex[LocaleDataIndex[\"DateFormat\"] = 10] = \"DateFormat\";\n    LocaleDataIndex[LocaleDataIndex[\"TimeFormat\"] = 11] = \"TimeFormat\";\n    LocaleDataIndex[LocaleDataIndex[\"DateTimeFormat\"] = 12] = \"DateTimeFormat\";\n    LocaleDataIndex[LocaleDataIndex[\"NumberSymbols\"] = 13] = \"NumberSymbols\";\n    LocaleDataIndex[LocaleDataIndex[\"NumberFormats\"] = 14] = \"NumberFormats\";\n    LocaleDataIndex[LocaleDataIndex[\"CurrencyCode\"] = 15] = \"CurrencyCode\";\n    LocaleDataIndex[LocaleDataIndex[\"CurrencySymbol\"] = 16] = \"CurrencySymbol\";\n    LocaleDataIndex[LocaleDataIndex[\"CurrencyName\"] = 17] = \"CurrencyName\";\n    LocaleDataIndex[LocaleDataIndex[\"Currencies\"] = 18] = \"Currencies\";\n    LocaleDataIndex[LocaleDataIndex[\"Directionality\"] = 19] = \"Directionality\";\n    LocaleDataIndex[LocaleDataIndex[\"PluralCase\"] = 20] = \"PluralCase\";\n    LocaleDataIndex[LocaleDataIndex[\"ExtraData\"] = 21] = \"ExtraData\";\n})(LocaleDataIndex || (LocaleDataIndex = {}));\n/**\n * Returns the canonical form of a locale name - lowercase with `_` replaced with `-`.\n */\nfunction normalizeLocale(locale) {\n    return locale.toLowerCase().replace(/_/g, '-');\n}\n\nconst pluralMapping = ['zero', 'one', 'two', 'few', 'many'];\n/**\n * Returns the plural case based on the locale\n */\nfunction getPluralCase(value, locale) {\n    const plural = getLocalePluralCase(locale)(parseInt(value, 10));\n    const result = pluralMapping[plural];\n    return (result !== undefined) ? result : 'other';\n}\n/**\n * The locale id that the application is using by default (for translations and ICU expressions).\n */\nconst DEFAULT_LOCALE_ID = 'en-US';\n/**\n * USD currency code that the application uses by default for CurrencyPipe when no\n * DEFAULT_CURRENCY_CODE is provided.\n */\nconst USD_CURRENCY_CODE = 'USD';\n\n/**\n * Marks that the next string is an element name.\n *\n * See `I18nMutateOpCodes` documentation.\n */\nconst ELEMENT_MARKER = {\n    marker: 'element'\n};\n/**\n * Marks that the next string is comment text need for ICU.\n *\n * See `I18nMutateOpCodes` documentation.\n */\nconst ICU_MARKER = {\n    marker: 'ICU'\n};\n/**\n * See `I18nCreateOpCodes`\n */\nvar I18nCreateOpCode;\n(function (I18nCreateOpCode) {\n    /**\n     * Number of bits to shift index so that it can be combined with the `APPEND_EAGERLY` and\n     * `COMMENT`.\n     */\n    I18nCreateOpCode[I18nCreateOpCode[\"SHIFT\"] = 2] = \"SHIFT\";\n    /**\n     * Should the node be appended to parent immediately after creation.\n     */\n    I18nCreateOpCode[I18nCreateOpCode[\"APPEND_EAGERLY\"] = 1] = \"APPEND_EAGERLY\";\n    /**\n     * If set the node should be comment (rather than a text) node.\n     */\n    I18nCreateOpCode[I18nCreateOpCode[\"COMMENT\"] = 2] = \"COMMENT\";\n})(I18nCreateOpCode || (I18nCreateOpCode = {}));\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\nconst unusedValueExportToPlacateAjd = 1;\n\n/**\n * The locale id that the application is currently using (for translations and ICU expressions).\n * This is the ivy version of `LOCALE_ID` that was defined as an injection token for the view engine\n * but is now defined as a global value.\n */\nlet LOCALE_ID$1 = DEFAULT_LOCALE_ID;\n/**\n * Sets the locale id that will be used for translations and ICU expressions.\n * This is the ivy version of `LOCALE_ID` that was defined as an injection token for the view engine\n * but is now defined as a global value.\n *\n * @param localeId\n */\nfunction setLocaleId(localeId) {\n    assertDefined(localeId, `Expected localeId to be defined`);\n    if (typeof localeId === 'string') {\n        LOCALE_ID$1 = localeId.toLowerCase().replace(/_/g, '-');\n    }\n}\n/**\n * Gets the locale id that will be used for translations and ICU expressions.\n * This is the ivy version of `LOCALE_ID` that was defined as an injection token for the view engine\n * but is now defined as a global value.\n */\nfunction getLocaleId() {\n    return LOCALE_ID$1;\n}\n\n/**\n * Find a node in front of which `currentTNode` should be inserted (takes i18n into account).\n *\n * This method determines the `RNode` in front of which we should insert the `currentRNode`. This\n * takes `TNode.insertBeforeIndex` into account.\n *\n * @param parentTNode parent `TNode`\n * @param currentTNode current `TNode` (The node which we would like to insert into the DOM)\n * @param lView current `LView`\n */\nfunction getInsertInFrontOfRNodeWithI18n(parentTNode, currentTNode, lView) {\n    const tNodeInsertBeforeIndex = currentTNode.insertBeforeIndex;\n    const insertBeforeIndex = Array.isArray(tNodeInsertBeforeIndex) ? tNodeInsertBeforeIndex[0] : tNodeInsertBeforeIndex;\n    if (insertBeforeIndex === null) {\n        return getInsertInFrontOfRNodeWithNoI18n(parentTNode, currentTNode, lView);\n    }\n    else {\n        ngDevMode && assertIndexInRange(lView, insertBeforeIndex);\n        return unwrapRNode(lView[insertBeforeIndex]);\n    }\n}\n/**\n * Process `TNode.insertBeforeIndex` by adding i18n text nodes.\n *\n * See `TNode.insertBeforeIndex`\n */\nfunction processI18nInsertBefore(renderer, childTNode, lView, childRNode, parentRElement) {\n    const tNodeInsertBeforeIndex = childTNode.insertBeforeIndex;\n    if (Array.isArray(tNodeInsertBeforeIndex)) {\n        // An array indicates that there are i18n nodes that need to be added as children of this\n        // `childRNode`. These i18n nodes were created before this `childRNode` was available and so\n        // only now can be added. The first element of the array is the normal index where we should\n        // insert the `childRNode`. Additional elements are the extra nodes to be added as children of\n        // `childRNode`.\n        ngDevMode && assertDomNode(childRNode);\n        let i18nParent = childRNode;\n        let anchorRNode = null;\n        if (!(childTNode.type & 3 /* TNodeType.AnyRNode */)) {\n            anchorRNode = i18nParent;\n            i18nParent = parentRElement;\n        }\n        if (i18nParent !== null && childTNode.componentOffset === -1) {\n            for (let i = 1; i < tNodeInsertBeforeIndex.length; i++) {\n                // No need to `unwrapRNode` because all of the indexes point to i18n text nodes.\n                // see `assertDomNode` below.\n                const i18nChild = lView[tNodeInsertBeforeIndex[i]];\n                nativeInsertBefore(renderer, i18nParent, i18nChild, anchorRNode, false);\n            }\n        }\n    }\n}\n\n/**\n * Add `tNode` to `previousTNodes` list and update relevant `TNode`s in `previousTNodes` list\n * `tNode.insertBeforeIndex`.\n *\n * Things to keep in mind:\n * 1. All i18n text nodes are encoded as `TNodeType.Element` and are created eagerly by the\n *    `ɵɵi18nStart` instruction.\n * 2. All `TNodeType.Placeholder` `TNodes` are elements which will be created later by\n *    `ɵɵelementStart` instruction.\n * 3. `ɵɵelementStart` instruction will create `TNode`s in the ascending `TNode.index` order. (So a\n *    smaller index `TNode` is guaranteed to be created before a larger one)\n *\n * We use the above three invariants to determine `TNode.insertBeforeIndex`.\n *\n * In an ideal world `TNode.insertBeforeIndex` would always be `TNode.next.index`. However,\n * this will not work because `TNode.next.index` may be larger than `TNode.index` which means that\n * the next node is not yet created and therefore we can't insert in front of it.\n *\n * Rule1: `TNode.insertBeforeIndex = null` if `TNode.next === null` (Initial condition, as we don't\n *        know if there will be further `TNode`s inserted after.)\n * Rule2: If `previousTNode` is created after the `tNode` being inserted, then\n *        `previousTNode.insertBeforeNode = tNode.index` (So when a new `tNode` is added we check\n *        previous to see if we can update its `insertBeforeTNode`)\n *\n * See `TNode.insertBeforeIndex` for more context.\n *\n * @param previousTNodes A list of previous TNodes so that we can easily traverse `TNode`s in\n *     reverse order. (If `TNode` would have `previous` this would not be necessary.)\n * @param newTNode A TNode to add to the `previousTNodes` list.\n */\nfunction addTNodeAndUpdateInsertBeforeIndex(previousTNodes, newTNode) {\n    // Start with Rule1\n    ngDevMode &&\n        assertEqual(newTNode.insertBeforeIndex, null, 'We expect that insertBeforeIndex is not set');\n    previousTNodes.push(newTNode);\n    if (previousTNodes.length > 1) {\n        for (let i = previousTNodes.length - 2; i >= 0; i--) {\n            const existingTNode = previousTNodes[i];\n            // Text nodes are created eagerly and so they don't need their `indexBeforeIndex` updated.\n            // It is safe to ignore them.\n            if (!isI18nText(existingTNode)) {\n                if (isNewTNodeCreatedBefore(existingTNode, newTNode) &&\n                    getInsertBeforeIndex(existingTNode) === null) {\n                    // If it was created before us in time, (and it does not yet have `insertBeforeIndex`)\n                    // then add the `insertBeforeIndex`.\n                    setInsertBeforeIndex(existingTNode, newTNode.index);\n                }\n            }\n        }\n    }\n}\nfunction isI18nText(tNode) {\n    return !(tNode.type & 64 /* TNodeType.Placeholder */);\n}\nfunction isNewTNodeCreatedBefore(existingTNode, newTNode) {\n    return isI18nText(newTNode) || existingTNode.index > newTNode.index;\n}\nfunction getInsertBeforeIndex(tNode) {\n    const index = tNode.insertBeforeIndex;\n    return Array.isArray(index) ? index[0] : index;\n}\nfunction setInsertBeforeIndex(tNode, value) {\n    const index = tNode.insertBeforeIndex;\n    if (Array.isArray(index)) {\n        // Array is stored if we have to insert child nodes. See `TNode.insertBeforeIndex`\n        index[0] = value;\n    }\n    else {\n        setI18nHandling(getInsertInFrontOfRNodeWithI18n, processI18nInsertBefore);\n        tNode.insertBeforeIndex = value;\n    }\n}\n\n/**\n * Retrieve `TIcu` at a given `index`.\n *\n * The `TIcu` can be stored either directly (if it is nested ICU) OR\n * it is stored inside tho `TIcuContainer` if it is top level ICU.\n *\n * The reason for this is that the top level ICU need a `TNode` so that they are part of the render\n * tree, but nested ICU's have no TNode, because we don't know ahead of time if the nested ICU is\n * expressed (parent ICU may have selected a case which does not contain it.)\n *\n * @param tView Current `TView`.\n * @param index Index where the value should be read from.\n */\nfunction getTIcu(tView, index) {\n    const value = tView.data[index];\n    if (value === null || typeof value === 'string')\n        return null;\n    if (ngDevMode &&\n        !(value.hasOwnProperty('tView') || value.hasOwnProperty('currentCaseLViewIndex'))) {\n        throwError('We expect to get \\'null\\'|\\'TIcu\\'|\\'TIcuContainer\\', but got: ' + value);\n    }\n    // Here the `value.hasOwnProperty('currentCaseLViewIndex')` is a polymorphic read as it can be\n    // either TIcu or TIcuContainerNode. This is not ideal, but we still think it is OK because it\n    // will be just two cases which fits into the browser inline cache (inline cache can take up to\n    // 4)\n    const tIcu = value.hasOwnProperty('currentCaseLViewIndex') ? value :\n        value.value;\n    ngDevMode && assertTIcu(tIcu);\n    return tIcu;\n}\n/**\n * Store `TIcu` at a give `index`.\n *\n * The `TIcu` can be stored either directly (if it is nested ICU) OR\n * it is stored inside tho `TIcuContainer` if it is top level ICU.\n *\n * The reason for this is that the top level ICU need a `TNode` so that they are part of the render\n * tree, but nested ICU's have no TNode, because we don't know ahead of time if the nested ICU is\n * expressed (parent ICU may have selected a case which does not contain it.)\n *\n * @param tView Current `TView`.\n * @param index Index where the value should be stored at in `Tview.data`\n * @param tIcu The TIcu to store.\n */\nfunction setTIcu(tView, index, tIcu) {\n    const tNode = tView.data[index];\n    ngDevMode &&\n        assertEqual(tNode === null || tNode.hasOwnProperty('tView'), true, 'We expect to get \\'null\\'|\\'TIcuContainer\\'');\n    if (tNode === null) {\n        tView.data[index] = tIcu;\n    }\n    else {\n        ngDevMode && assertTNodeType(tNode, 32 /* TNodeType.Icu */);\n        tNode.value = tIcu;\n    }\n}\n/**\n * Set `TNode.insertBeforeIndex` taking the `Array` into account.\n *\n * See `TNode.insertBeforeIndex`\n */\nfunction setTNodeInsertBeforeIndex(tNode, index) {\n    ngDevMode && assertTNode(tNode);\n    let insertBeforeIndex = tNode.insertBeforeIndex;\n    if (insertBeforeIndex === null) {\n        setI18nHandling(getInsertInFrontOfRNodeWithI18n, processI18nInsertBefore);\n        insertBeforeIndex = tNode.insertBeforeIndex =\n            [null /* may be updated to number later */, index];\n    }\n    else {\n        assertEqual(Array.isArray(insertBeforeIndex), true, 'Expecting array here');\n        insertBeforeIndex.push(index);\n    }\n}\n/**\n * Create `TNode.type=TNodeType.Placeholder` node.\n *\n * See `TNodeType.Placeholder` for more information.\n */\nfunction createTNodePlaceholder(tView, previousTNodes, index) {\n    const tNode = createTNodeAtIndex(tView, index, 64 /* TNodeType.Placeholder */, null, null);\n    addTNodeAndUpdateInsertBeforeIndex(previousTNodes, tNode);\n    return tNode;\n}\n/**\n * Returns current ICU case.\n *\n * ICU cases are stored as index into the `TIcu.cases`.\n * At times it is necessary to communicate that the ICU case just switched and that next ICU update\n * should update all bindings regardless of the mask. In such a case the we store negative numbers\n * for cases which have just been switched. This function removes the negative flag.\n */\nfunction getCurrentICUCaseIndex(tIcu, lView) {\n    const currentCase = lView[tIcu.currentCaseLViewIndex];\n    return currentCase === null ? currentCase : (currentCase < 0 ? ~currentCase : currentCase);\n}\nfunction getParentFromIcuCreateOpCode(mergedCode) {\n    return mergedCode >>> 17 /* IcuCreateOpCode.SHIFT_PARENT */;\n}\nfunction getRefFromIcuCreateOpCode(mergedCode) {\n    return (mergedCode & 131070 /* IcuCreateOpCode.MASK_REF */) >>> 1 /* IcuCreateOpCode.SHIFT_REF */;\n}\nfunction getInstructionFromIcuCreateOpCode(mergedCode) {\n    return mergedCode & 1 /* IcuCreateOpCode.MASK_INSTRUCTION */;\n}\nfunction icuCreateOpCode(opCode, parentIdx, refIdx) {\n    ngDevMode && assertGreaterThanOrEqual(parentIdx, 0, 'Missing parent index');\n    ngDevMode && assertGreaterThan(refIdx, 0, 'Missing ref index');\n    return opCode | parentIdx << 17 /* IcuCreateOpCode.SHIFT_PARENT */ | refIdx << 1 /* IcuCreateOpCode.SHIFT_REF */;\n}\n\n/**\n * Keep track of which input bindings in `ɵɵi18nExp` have changed.\n *\n * This is used to efficiently update expressions in i18n only when the corresponding input has\n * changed.\n *\n * 1) Each bit represents which of the `ɵɵi18nExp` has changed.\n * 2) There are 32 bits allowed in JS.\n * 3) Bit 32 is special as it is shared for all changes past 32. (In other words if you have more\n * than 32 `ɵɵi18nExp` then all changes past 32nd `ɵɵi18nExp` will be mapped to same bit. This means\n * that we may end up changing more than we need to. But i18n expressions with 32 bindings is rare\n * so in practice it should not be an issue.)\n */\nlet changeMask = 0b0;\n/**\n * Keeps track of which bit needs to be updated in `changeMask`\n *\n * This value gets incremented on every call to `ɵɵi18nExp`\n */\nlet changeMaskCounter = 0;\n/**\n * Keep track of which input bindings in `ɵɵi18nExp` have changed.\n *\n * `setMaskBit` gets invoked by each call to `ɵɵi18nExp`.\n *\n * @param hasChange did `ɵɵi18nExp` detect a change.\n */\nfunction setMaskBit(hasChange) {\n    if (hasChange) {\n        changeMask = changeMask | (1 << Math.min(changeMaskCounter, 31));\n    }\n    changeMaskCounter++;\n}\nfunction applyI18n(tView, lView, index) {\n    if (changeMaskCounter > 0) {\n        ngDevMode && assertDefined(tView, `tView should be defined`);\n        const tI18n = tView.data[index];\n        // When `index` points to an `ɵɵi18nAttributes` then we have an array otherwise `TI18n`\n        const updateOpCodes = Array.isArray(tI18n) ? tI18n : tI18n.update;\n        const bindingsStartIndex = getBindingIndex() - changeMaskCounter - 1;\n        applyUpdateOpCodes(tView, lView, updateOpCodes, bindingsStartIndex, changeMask);\n    }\n    // Reset changeMask & maskBit to default for the next update cycle\n    changeMask = 0b0;\n    changeMaskCounter = 0;\n}\n/**\n * Apply `I18nCreateOpCodes` op-codes as stored in `TI18n.create`.\n *\n * Creates text (and comment) nodes which are internationalized.\n *\n * @param lView Current lView\n * @param createOpCodes Set of op-codes to apply\n * @param parentRNode Parent node (so that direct children can be added eagerly) or `null` if it is\n *     a root node.\n * @param insertInFrontOf DOM node that should be used as an anchor.\n */\nfunction applyCreateOpCodes(lView, createOpCodes, parentRNode, insertInFrontOf) {\n    const renderer = lView[RENDERER];\n    for (let i = 0; i < createOpCodes.length; i++) {\n        const opCode = createOpCodes[i++];\n        const text = createOpCodes[i];\n        const isComment = (opCode & I18nCreateOpCode.COMMENT) === I18nCreateOpCode.COMMENT;\n        const appendNow = (opCode & I18nCreateOpCode.APPEND_EAGERLY) === I18nCreateOpCode.APPEND_EAGERLY;\n        const index = opCode >>> I18nCreateOpCode.SHIFT;\n        let rNode = lView[index];\n        if (rNode === null) {\n            // We only create new DOM nodes if they don't already exist: If ICU switches case back to a\n            // case which was already instantiated, no need to create new DOM nodes.\n            rNode = lView[index] =\n                isComment ? renderer.createComment(text) : createTextNode(renderer, text);\n        }\n        if (appendNow && parentRNode !== null) {\n            nativeInsertBefore(renderer, parentRNode, rNode, insertInFrontOf, false);\n        }\n    }\n}\n/**\n * Apply `I18nMutateOpCodes` OpCodes.\n *\n * @param tView Current `TView`\n * @param mutableOpCodes Mutable OpCodes to process\n * @param lView Current `LView`\n * @param anchorRNode place where the i18n node should be inserted.\n */\nfunction applyMutableOpCodes(tView, mutableOpCodes, lView, anchorRNode) {\n    ngDevMode && assertDomNode(anchorRNode);\n    const renderer = lView[RENDERER];\n    // `rootIdx` represents the node into which all inserts happen.\n    let rootIdx = null;\n    // `rootRNode` represents the real node into which we insert. This can be different from\n    // `lView[rootIdx]` if we have projection.\n    //  - null we don't have a parent (as can be the case in when we are inserting into a root of\n    //    LView which has no parent.)\n    //  - `RElement` The element representing the root after taking projection into account.\n    let rootRNode;\n    for (let i = 0; i < mutableOpCodes.length; i++) {\n        const opCode = mutableOpCodes[i];\n        if (typeof opCode == 'string') {\n            const textNodeIndex = mutableOpCodes[++i];\n            if (lView[textNodeIndex] === null) {\n                ngDevMode && ngDevMode.rendererCreateTextNode++;\n                ngDevMode && assertIndexInRange(lView, textNodeIndex);\n                lView[textNodeIndex] = createTextNode(renderer, opCode);\n            }\n        }\n        else if (typeof opCode == 'number') {\n            switch (opCode & 1 /* IcuCreateOpCode.MASK_INSTRUCTION */) {\n                case 0 /* IcuCreateOpCode.AppendChild */:\n                    const parentIdx = getParentFromIcuCreateOpCode(opCode);\n                    if (rootIdx === null) {\n                        // The first operation should save the `rootIdx` because the first operation\n                        // must insert into the root. (Only subsequent operations can insert into a dynamic\n                        // parent)\n                        rootIdx = parentIdx;\n                        rootRNode = nativeParentNode(renderer, anchorRNode);\n                    }\n                    let insertInFrontOf;\n                    let parentRNode;\n                    if (parentIdx === rootIdx) {\n                        insertInFrontOf = anchorRNode;\n                        parentRNode = rootRNode;\n                    }\n                    else {\n                        insertInFrontOf = null;\n                        parentRNode = unwrapRNode(lView[parentIdx]);\n                    }\n                    // FIXME(misko): Refactor with `processI18nText`\n                    if (parentRNode !== null) {\n                        // This can happen if the `LView` we are adding to is not attached to a parent `LView`.\n                        // In such a case there is no \"root\" we can attach to. This is fine, as we still need to\n                        // create the elements. When the `LView` gets later added to a parent these \"root\" nodes\n                        // get picked up and added.\n                        ngDevMode && assertDomNode(parentRNode);\n                        const refIdx = getRefFromIcuCreateOpCode(opCode);\n                        ngDevMode && assertGreaterThan(refIdx, HEADER_OFFSET, 'Missing ref');\n                        // `unwrapRNode` is not needed here as all of these point to RNodes as part of the i18n\n                        // which can't have components.\n                        const child = lView[refIdx];\n                        ngDevMode && assertDomNode(child);\n                        nativeInsertBefore(renderer, parentRNode, child, insertInFrontOf, false);\n                        const tIcu = getTIcu(tView, refIdx);\n                        if (tIcu !== null && typeof tIcu === 'object') {\n                            // If we just added a comment node which has ICU then that ICU may have already been\n                            // rendered and therefore we need to re-add it here.\n                            ngDevMode && assertTIcu(tIcu);\n                            const caseIndex = getCurrentICUCaseIndex(tIcu, lView);\n                            if (caseIndex !== null) {\n                                applyMutableOpCodes(tView, tIcu.create[caseIndex], lView, lView[tIcu.anchorIdx]);\n                            }\n                        }\n                    }\n                    break;\n                case 1 /* IcuCreateOpCode.Attr */:\n                    const elementNodeIndex = opCode >>> 1 /* IcuCreateOpCode.SHIFT_REF */;\n                    const attrName = mutableOpCodes[++i];\n                    const attrValue = mutableOpCodes[++i];\n                    // This code is used for ICU expressions only, since we don't support\n                    // directives/components in ICUs, we don't need to worry about inputs here\n                    setElementAttribute(renderer, getNativeByIndex(elementNodeIndex, lView), null, null, attrName, attrValue, null);\n                    break;\n                default:\n                    if (ngDevMode) {\n                        throw new RuntimeError(700 /* RuntimeErrorCode.INVALID_I18N_STRUCTURE */, `Unable to determine the type of mutate operation for \"${opCode}\"`);\n                    }\n            }\n        }\n        else {\n            switch (opCode) {\n                case ICU_MARKER:\n                    const commentValue = mutableOpCodes[++i];\n                    const commentNodeIndex = mutableOpCodes[++i];\n                    if (lView[commentNodeIndex] === null) {\n                        ngDevMode &&\n                            assertEqual(typeof commentValue, 'string', `Expected \"${commentValue}\" to be a comment node value`);\n                        ngDevMode && ngDevMode.rendererCreateComment++;\n                        ngDevMode && assertIndexInExpandoRange(lView, commentNodeIndex);\n                        const commentRNode = lView[commentNodeIndex] =\n                            createCommentNode(renderer, commentValue);\n                        // FIXME(misko): Attaching patch data is only needed for the root (Also add tests)\n                        attachPatchData(commentRNode, lView);\n                    }\n                    break;\n                case ELEMENT_MARKER:\n                    const tagName = mutableOpCodes[++i];\n                    const elementNodeIndex = mutableOpCodes[++i];\n                    if (lView[elementNodeIndex] === null) {\n                        ngDevMode &&\n                            assertEqual(typeof tagName, 'string', `Expected \"${tagName}\" to be an element node tag name`);\n                        ngDevMode && ngDevMode.rendererCreateElement++;\n                        ngDevMode && assertIndexInExpandoRange(lView, elementNodeIndex);\n                        const elementRNode = lView[elementNodeIndex] =\n                            createElementNode(renderer, tagName, null);\n                        // FIXME(misko): Attaching patch data is only needed for the root (Also add tests)\n                        attachPatchData(elementRNode, lView);\n                    }\n                    break;\n                default:\n                    ngDevMode &&\n                        throwError(`Unable to determine the type of mutate operation for \"${opCode}\"`);\n            }\n        }\n    }\n}\n/**\n * Apply `I18nUpdateOpCodes` OpCodes\n *\n * @param tView Current `TView`\n * @param lView Current `LView`\n * @param updateOpCodes OpCodes to process\n * @param bindingsStartIndex Location of the first `ɵɵi18nApply`\n * @param changeMask Each bit corresponds to a `ɵɵi18nExp` (Counting backwards from\n *     `bindingsStartIndex`)\n */\nfunction applyUpdateOpCodes(tView, lView, updateOpCodes, bindingsStartIndex, changeMask) {\n    for (let i = 0; i < updateOpCodes.length; i++) {\n        // bit code to check if we should apply the next update\n        const checkBit = updateOpCodes[i];\n        // Number of opCodes to skip until next set of update codes\n        const skipCodes = updateOpCodes[++i];\n        if (checkBit & changeMask) {\n            // The value has been updated since last checked\n            let value = '';\n            for (let j = i + 1; j <= (i + skipCodes); j++) {\n                const opCode = updateOpCodes[j];\n                if (typeof opCode == 'string') {\n                    value += opCode;\n                }\n                else if (typeof opCode == 'number') {\n                    if (opCode < 0) {\n                        // Negative opCode represent `i18nExp` values offset.\n                        value += renderStringify(lView[bindingsStartIndex - opCode]);\n                    }\n                    else {\n                        const nodeIndex = (opCode >>> 2 /* I18nUpdateOpCode.SHIFT_REF */);\n                        switch (opCode & 3 /* I18nUpdateOpCode.MASK_OPCODE */) {\n                            case 1 /* I18nUpdateOpCode.Attr */:\n                                const propName = updateOpCodes[++j];\n                                const sanitizeFn = updateOpCodes[++j];\n                                const tNodeOrTagName = tView.data[nodeIndex];\n                                ngDevMode && assertDefined(tNodeOrTagName, 'Experting TNode or string');\n                                if (typeof tNodeOrTagName === 'string') {\n                                    // IF we don't have a `TNode`, then we are an element in ICU (as ICU content does\n                                    // not have TNode), in which case we know that there are no directives, and hence\n                                    // we use attribute setting.\n                                    setElementAttribute(lView[RENDERER], lView[nodeIndex], null, tNodeOrTagName, propName, value, sanitizeFn);\n                                }\n                                else {\n                                    elementPropertyInternal(tView, tNodeOrTagName, lView, propName, value, lView[RENDERER], sanitizeFn, false);\n                                }\n                                break;\n                            case 0 /* I18nUpdateOpCode.Text */:\n                                const rText = lView[nodeIndex];\n                                rText !== null && updateTextNode(lView[RENDERER], rText, value);\n                                break;\n                            case 2 /* I18nUpdateOpCode.IcuSwitch */:\n                                applyIcuSwitchCase(tView, getTIcu(tView, nodeIndex), lView, value);\n                                break;\n                            case 3 /* I18nUpdateOpCode.IcuUpdate */:\n                                applyIcuUpdateCase(tView, getTIcu(tView, nodeIndex), bindingsStartIndex, lView);\n                                break;\n                        }\n                    }\n                }\n            }\n        }\n        else {\n            const opCode = updateOpCodes[i + 1];\n            if (opCode > 0 && (opCode & 3 /* I18nUpdateOpCode.MASK_OPCODE */) === 3 /* I18nUpdateOpCode.IcuUpdate */) {\n                // Special case for the `icuUpdateCase`. It could be that the mask did not match, but\n                // we still need to execute `icuUpdateCase` because the case has changed recently due to\n                // previous `icuSwitchCase` instruction. (`icuSwitchCase` and `icuUpdateCase` always come in\n                // pairs.)\n                const nodeIndex = (opCode >>> 2 /* I18nUpdateOpCode.SHIFT_REF */);\n                const tIcu = getTIcu(tView, nodeIndex);\n                const currentIndex = lView[tIcu.currentCaseLViewIndex];\n                if (currentIndex < 0) {\n                    applyIcuUpdateCase(tView, tIcu, bindingsStartIndex, lView);\n                }\n            }\n        }\n        i += skipCodes;\n    }\n}\n/**\n * Apply OpCodes associated with updating an existing ICU.\n *\n * @param tView Current `TView`\n * @param tIcu Current `TIcu`\n * @param bindingsStartIndex Location of the first `ɵɵi18nApply`\n * @param lView Current `LView`\n */\nfunction applyIcuUpdateCase(tView, tIcu, bindingsStartIndex, lView) {\n    ngDevMode && assertIndexInRange(lView, tIcu.currentCaseLViewIndex);\n    let activeCaseIndex = lView[tIcu.currentCaseLViewIndex];\n    if (activeCaseIndex !== null) {\n        let mask = changeMask;\n        if (activeCaseIndex < 0) {\n            // Clear the flag.\n            // Negative number means that the ICU was freshly created and we need to force the update.\n            activeCaseIndex = lView[tIcu.currentCaseLViewIndex] = ~activeCaseIndex;\n            // -1 is same as all bits on, which simulates creation since it marks all bits dirty\n            mask = -1;\n        }\n        applyUpdateOpCodes(tView, lView, tIcu.update[activeCaseIndex], bindingsStartIndex, mask);\n    }\n}\n/**\n * Apply OpCodes associated with switching a case on ICU.\n *\n * This involves tearing down existing case and than building up a new case.\n *\n * @param tView Current `TView`\n * @param tIcu Current `TIcu`\n * @param lView Current `LView`\n * @param value Value of the case to update to.\n */\nfunction applyIcuSwitchCase(tView, tIcu, lView, value) {\n    // Rebuild a new case for this ICU\n    const caseIndex = getCaseIndex(tIcu, value);\n    let activeCaseIndex = getCurrentICUCaseIndex(tIcu, lView);\n    if (activeCaseIndex !== caseIndex) {\n        applyIcuSwitchCaseRemove(tView, tIcu, lView);\n        lView[tIcu.currentCaseLViewIndex] = caseIndex === null ? null : ~caseIndex;\n        if (caseIndex !== null) {\n            // Add the nodes for the new case\n            const anchorRNode = lView[tIcu.anchorIdx];\n            if (anchorRNode) {\n                ngDevMode && assertDomNode(anchorRNode);\n                applyMutableOpCodes(tView, tIcu.create[caseIndex], lView, anchorRNode);\n            }\n        }\n    }\n}\n/**\n * Apply OpCodes associated with tearing ICU case.\n *\n * This involves tearing down existing case and than building up a new case.\n *\n * @param tView Current `TView`\n * @param tIcu Current `TIcu`\n * @param lView Current `LView`\n */\nfunction applyIcuSwitchCaseRemove(tView, tIcu, lView) {\n    let activeCaseIndex = getCurrentICUCaseIndex(tIcu, lView);\n    if (activeCaseIndex !== null) {\n        const removeCodes = tIcu.remove[activeCaseIndex];\n        for (let i = 0; i < removeCodes.length; i++) {\n            const nodeOrIcuIndex = removeCodes[i];\n            if (nodeOrIcuIndex > 0) {\n                // Positive numbers are `RNode`s.\n                const rNode = getNativeByIndex(nodeOrIcuIndex, lView);\n                rNode !== null && nativeRemoveNode(lView[RENDERER], rNode);\n            }\n            else {\n                // Negative numbers are ICUs\n                applyIcuSwitchCaseRemove(tView, getTIcu(tView, ~nodeOrIcuIndex), lView);\n            }\n        }\n    }\n}\n/**\n * Returns the index of the current case of an ICU expression depending on the main binding value\n *\n * @param icuExpression\n * @param bindingValue The value of the main binding used by this ICU expression\n */\nfunction getCaseIndex(icuExpression, bindingValue) {\n    let index = icuExpression.cases.indexOf(bindingValue);\n    if (index === -1) {\n        switch (icuExpression.type) {\n            case 1 /* IcuType.plural */: {\n                const resolvedCase = getPluralCase(bindingValue, getLocaleId());\n                index = icuExpression.cases.indexOf(resolvedCase);\n                if (index === -1 && resolvedCase !== 'other') {\n                    index = icuExpression.cases.indexOf('other');\n                }\n                break;\n            }\n            case 0 /* IcuType.select */: {\n                index = icuExpression.cases.indexOf('other');\n                break;\n            }\n        }\n    }\n    return index === -1 ? null : index;\n}\n\nfunction loadIcuContainerVisitor() {\n    const _stack = [];\n    let _index = -1;\n    let _lView;\n    let _removes;\n    /**\n     * Retrieves a set of root nodes from `TIcu.remove`. Used by `TNodeType.ICUContainer`\n     * to determine which root belong to the ICU.\n     *\n     * Example of usage.\n     * ```\n     * const nextRNode = icuContainerIteratorStart(tIcuContainerNode, lView);\n     * let rNode: RNode|null;\n     * while(rNode = nextRNode()) {\n     *   console.log(rNode);\n     * }\n     * ```\n     *\n     * @param tIcuContainerNode Current `TIcuContainerNode`\n     * @param lView `LView` where the `RNode`s should be looked up.\n     */\n    function icuContainerIteratorStart(tIcuContainerNode, lView) {\n        _lView = lView;\n        while (_stack.length)\n            _stack.pop();\n        ngDevMode && assertTNodeForLView(tIcuContainerNode, lView);\n        enterIcu(tIcuContainerNode.value, lView);\n        return icuContainerIteratorNext;\n    }\n    function enterIcu(tIcu, lView) {\n        _index = 0;\n        const currentCase = getCurrentICUCaseIndex(tIcu, lView);\n        if (currentCase !== null) {\n            ngDevMode && assertNumberInRange(currentCase, 0, tIcu.cases.length - 1);\n            _removes = tIcu.remove[currentCase];\n        }\n        else {\n            _removes = EMPTY_ARRAY;\n        }\n    }\n    function icuContainerIteratorNext() {\n        if (_index < _removes.length) {\n            const removeOpCode = _removes[_index++];\n            ngDevMode && assertNumber(removeOpCode, 'Expecting OpCode number');\n            if (removeOpCode > 0) {\n                const rNode = _lView[removeOpCode];\n                ngDevMode && assertDomNode(rNode);\n                return rNode;\n            }\n            else {\n                _stack.push(_index, _removes);\n                // ICUs are represented by negative indices\n                const tIcuIndex = ~removeOpCode;\n                const tIcu = _lView[TVIEW].data[tIcuIndex];\n                ngDevMode && assertTIcu(tIcu);\n                enterIcu(tIcu, _lView);\n                return icuContainerIteratorNext();\n            }\n        }\n        else {\n            if (_stack.length === 0) {\n                return null;\n            }\n            else {\n                _removes = _stack.pop();\n                _index = _stack.pop();\n                return icuContainerIteratorNext();\n            }\n        }\n    }\n    return icuContainerIteratorStart;\n}\n\n/**\n * Converts `I18nCreateOpCodes` array into a human readable format.\n *\n * This function is attached to the `I18nCreateOpCodes.debug` property if `ngDevMode` is enabled.\n * This function provides a human readable view of the opcodes. This is useful when debugging the\n * application as well as writing more readable tests.\n *\n * @param this `I18nCreateOpCodes` if attached as a method.\n * @param opcodes `I18nCreateOpCodes` if invoked as a function.\n */\nfunction i18nCreateOpCodesToString(opcodes) {\n    const createOpCodes = opcodes || (Array.isArray(this) ? this : []);\n    let lines = [];\n    for (let i = 0; i < createOpCodes.length; i++) {\n        const opCode = createOpCodes[i++];\n        const text = createOpCodes[i];\n        const isComment = (opCode & I18nCreateOpCode.COMMENT) === I18nCreateOpCode.COMMENT;\n        const appendNow = (opCode & I18nCreateOpCode.APPEND_EAGERLY) === I18nCreateOpCode.APPEND_EAGERLY;\n        const index = opCode >>> I18nCreateOpCode.SHIFT;\n        lines.push(`lView[${index}] = document.${isComment ? 'createComment' : 'createText'}(${JSON.stringify(text)});`);\n        if (appendNow) {\n            lines.push(`parent.appendChild(lView[${index}]);`);\n        }\n    }\n    return lines;\n}\n/**\n * Converts `I18nUpdateOpCodes` array into a human readable format.\n *\n * This function is attached to the `I18nUpdateOpCodes.debug` property if `ngDevMode` is enabled.\n * This function provides a human readable view of the opcodes. This is useful when debugging the\n * application as well as writing more readable tests.\n *\n * @param this `I18nUpdateOpCodes` if attached as a method.\n * @param opcodes `I18nUpdateOpCodes` if invoked as a function.\n */\nfunction i18nUpdateOpCodesToString(opcodes) {\n    const parser = new OpCodeParser(opcodes || (Array.isArray(this) ? this : []));\n    let lines = [];\n    function consumeOpCode(value) {\n        const ref = value >>> 2 /* I18nUpdateOpCode.SHIFT_REF */;\n        const opCode = value & 3 /* I18nUpdateOpCode.MASK_OPCODE */;\n        switch (opCode) {\n            case 0 /* I18nUpdateOpCode.Text */:\n                return `(lView[${ref}] as Text).textContent = $$$`;\n            case 1 /* I18nUpdateOpCode.Attr */:\n                const attrName = parser.consumeString();\n                const sanitizationFn = parser.consumeFunction();\n                const value = sanitizationFn ? `(${sanitizationFn})($$$)` : '$$$';\n                return `(lView[${ref}] as Element).setAttribute('${attrName}', ${value})`;\n            case 2 /* I18nUpdateOpCode.IcuSwitch */:\n                return `icuSwitchCase(${ref}, $$$)`;\n            case 3 /* I18nUpdateOpCode.IcuUpdate */:\n                return `icuUpdateCase(${ref})`;\n        }\n        throw new Error('unexpected OpCode');\n    }\n    while (parser.hasMore()) {\n        let mask = parser.consumeNumber();\n        let size = parser.consumeNumber();\n        const end = parser.i + size;\n        const statements = [];\n        let statement = '';\n        while (parser.i < end) {\n            let value = parser.consumeNumberOrString();\n            if (typeof value === 'string') {\n                statement += value;\n            }\n            else if (value < 0) {\n                // Negative numbers are ref indexes\n                // Here `i` refers to current binding index. It is to signify that the value is relative,\n                // rather than absolute.\n                statement += '${lView[i' + value + ']}';\n            }\n            else {\n                // Positive numbers are operations.\n                const opCodeText = consumeOpCode(value);\n                statements.push(opCodeText.replace('$$$', '`' + statement + '`') + ';');\n                statement = '';\n            }\n        }\n        lines.push(`if (mask & 0b${mask.toString(2)}) { ${statements.join(' ')} }`);\n    }\n    return lines;\n}\n/**\n * Converts `I18nCreateOpCodes` array into a human readable format.\n *\n * This function is attached to the `I18nCreateOpCodes.debug` if `ngDevMode` is enabled. This\n * function provides a human readable view of the opcodes. This is useful when debugging the\n * application as well as writing more readable tests.\n *\n * @param this `I18nCreateOpCodes` if attached as a method.\n * @param opcodes `I18nCreateOpCodes` if invoked as a function.\n */\nfunction icuCreateOpCodesToString(opcodes) {\n    const parser = new OpCodeParser(opcodes || (Array.isArray(this) ? this : []));\n    let lines = [];\n    function consumeOpCode(opCode) {\n        const parent = getParentFromIcuCreateOpCode(opCode);\n        const ref = getRefFromIcuCreateOpCode(opCode);\n        switch (getInstructionFromIcuCreateOpCode(opCode)) {\n            case 0 /* IcuCreateOpCode.AppendChild */:\n                return `(lView[${parent}] as Element).appendChild(lView[${lastRef}])`;\n            case 1 /* IcuCreateOpCode.Attr */:\n                return `(lView[${ref}] as Element).setAttribute(\"${parser.consumeString()}\", \"${parser.consumeString()}\")`;\n        }\n        throw new Error('Unexpected OpCode: ' + getInstructionFromIcuCreateOpCode(opCode));\n    }\n    let lastRef = -1;\n    while (parser.hasMore()) {\n        let value = parser.consumeNumberStringOrMarker();\n        if (value === ICU_MARKER) {\n            const text = parser.consumeString();\n            lastRef = parser.consumeNumber();\n            lines.push(`lView[${lastRef}] = document.createComment(\"${text}\")`);\n        }\n        else if (value === ELEMENT_MARKER) {\n            const text = parser.consumeString();\n            lastRef = parser.consumeNumber();\n            lines.push(`lView[${lastRef}] = document.createElement(\"${text}\")`);\n        }\n        else if (typeof value === 'string') {\n            lastRef = parser.consumeNumber();\n            lines.push(`lView[${lastRef}] = document.createTextNode(\"${value}\")`);\n        }\n        else if (typeof value === 'number') {\n            const line = consumeOpCode(value);\n            line && lines.push(line);\n        }\n        else {\n            throw new Error('Unexpected value');\n        }\n    }\n    return lines;\n}\n/**\n * Converts `I18nRemoveOpCodes` array into a human readable format.\n *\n * This function is attached to the `I18nRemoveOpCodes.debug` if `ngDevMode` is enabled. This\n * function provides a human readable view of the opcodes. This is useful when debugging the\n * application as well as writing more readable tests.\n *\n * @param this `I18nRemoveOpCodes` if attached as a method.\n * @param opcodes `I18nRemoveOpCodes` if invoked as a function.\n */\nfunction i18nRemoveOpCodesToString(opcodes) {\n    const removeCodes = opcodes || (Array.isArray(this) ? this : []);\n    let lines = [];\n    for (let i = 0; i < removeCodes.length; i++) {\n        const nodeOrIcuIndex = removeCodes[i];\n        if (nodeOrIcuIndex > 0) {\n            // Positive numbers are `RNode`s.\n            lines.push(`remove(lView[${nodeOrIcuIndex}])`);\n        }\n        else {\n            // Negative numbers are ICUs\n            lines.push(`removeNestedICU(${~nodeOrIcuIndex})`);\n        }\n    }\n    return lines;\n}\nclass OpCodeParser {\n    constructor(codes) {\n        this.i = 0;\n        this.codes = codes;\n    }\n    hasMore() {\n        return this.i < this.codes.length;\n    }\n    consumeNumber() {\n        let value = this.codes[this.i++];\n        assertNumber(value, 'expecting number in OpCode');\n        return value;\n    }\n    consumeString() {\n        let value = this.codes[this.i++];\n        assertString(value, 'expecting string in OpCode');\n        return value;\n    }\n    consumeFunction() {\n        let value = this.codes[this.i++];\n        if (value === null || typeof value === 'function') {\n            return value;\n        }\n        throw new Error('expecting function in OpCode');\n    }\n    consumeNumberOrString() {\n        let value = this.codes[this.i++];\n        if (typeof value === 'string') {\n            return value;\n        }\n        assertNumber(value, 'expecting number or string in OpCode');\n        return value;\n    }\n    consumeNumberStringOrMarker() {\n        let value = this.codes[this.i++];\n        if (typeof value === 'string' || typeof value === 'number' || value == ICU_MARKER ||\n            value == ELEMENT_MARKER) {\n            return value;\n        }\n        assertNumber(value, 'expecting number, string, ICU_MARKER or ELEMENT_MARKER in OpCode');\n        return value;\n    }\n}\n\nconst BINDING_REGEXP = /�(\\d+):?\\d*�/gi;\nconst ICU_REGEXP = /({\\s*�\\d+:?\\d*�\\s*,\\s*\\S{6}\\s*,[\\s\\S]*})/gi;\nconst NESTED_ICU = /�(\\d+)�/;\nconst ICU_BLOCK_REGEXP = /^\\s*(�\\d+:?\\d*�)\\s*,\\s*(select|plural)\\s*,/;\nconst MARKER = `�`;\nconst SUBTEMPLATE_REGEXP = /�\\/?\\*(\\d+:\\d+)�/gi;\nconst PH_REGEXP = /�(\\/?[#*]\\d+):?\\d*�/gi;\n/**\n * Angular uses the special entity &ngsp; as a placeholder for non-removable space.\n * It's replaced by the 0xE500 PUA (Private Use Areas) unicode character and later on replaced by a\n * space.\n * We are re-implementing the same idea since translations might contain this special character.\n */\nconst NGSP_UNICODE_REGEXP = /\\uE500/g;\nfunction replaceNgsp(value) {\n    return value.replace(NGSP_UNICODE_REGEXP, ' ');\n}\n/**\n * Patch a `debug` property getter on top of the existing object.\n *\n * NOTE: always call this method with `ngDevMode && attachDebugObject(...)`\n *\n * @param obj Object to patch\n * @param debugGetter Getter returning a value to patch\n */\nfunction attachDebugGetter(obj, debugGetter) {\n    if (ngDevMode) {\n        Object.defineProperty(obj, 'debug', { get: debugGetter, enumerable: false });\n    }\n    else {\n        throw new Error('This method should be guarded with `ngDevMode` so that it can be tree shaken in production!');\n    }\n}\n/**\n * Create dynamic nodes from i18n translation block.\n *\n * - Text nodes are created synchronously\n * - TNodes are linked into tree lazily\n *\n * @param tView Current `TView`\n * @parentTNodeIndex index to the parent TNode of this i18n block\n * @param lView Current `LView`\n * @param index Index of `ɵɵi18nStart` instruction.\n * @param message Message to translate.\n * @param subTemplateIndex Index into the sub template of message translation. (ie in case of\n *     `ngIf`) (-1 otherwise)\n */\nfunction i18nStartFirstCreatePass(tView, parentTNodeIndex, lView, index, message, subTemplateIndex) {\n    const rootTNode = getCurrentParentTNode();\n    const createOpCodes = [];\n    const updateOpCodes = [];\n    const existingTNodeStack = [[]];\n    if (ngDevMode) {\n        attachDebugGetter(createOpCodes, i18nCreateOpCodesToString);\n        attachDebugGetter(updateOpCodes, i18nUpdateOpCodesToString);\n    }\n    message = getTranslationForTemplate(message, subTemplateIndex);\n    const msgParts = replaceNgsp(message).split(PH_REGEXP);\n    for (let i = 0; i < msgParts.length; i++) {\n        let value = msgParts[i];\n        if ((i & 1) === 0) {\n            // Even indexes are text (including bindings & ICU expressions)\n            const parts = i18nParseTextIntoPartsAndICU(value);\n            for (let j = 0; j < parts.length; j++) {\n                let part = parts[j];\n                if ((j & 1) === 0) {\n                    // `j` is odd therefore `part` is string\n                    const text = part;\n                    ngDevMode && assertString(text, 'Parsed ICU part should be string');\n                    if (text !== '') {\n                        i18nStartFirstCreatePassProcessTextNode(tView, rootTNode, existingTNodeStack[0], createOpCodes, updateOpCodes, lView, text);\n                    }\n                }\n                else {\n                    // `j` is Even therefor `part` is an `ICUExpression`\n                    const icuExpression = part;\n                    // Verify that ICU expression has the right shape. Translations might contain invalid\n                    // constructions (while original messages were correct), so ICU parsing at runtime may\n                    // not succeed (thus `icuExpression` remains a string).\n                    // Note: we intentionally retain the error here by not using `ngDevMode`, because\n                    // the value can change based on the locale and users aren't guaranteed to hit\n                    // an invalid string while they're developing.\n                    if (typeof icuExpression !== 'object') {\n                        throw new Error(`Unable to parse ICU expression in \"${message}\" message.`);\n                    }\n                    const icuContainerTNode = createTNodeAndAddOpCode(tView, rootTNode, existingTNodeStack[0], lView, createOpCodes, ngDevMode ? `ICU ${index}:${icuExpression.mainBinding}` : '', true);\n                    const icuNodeIndex = icuContainerTNode.index;\n                    ngDevMode &&\n                        assertGreaterThanOrEqual(icuNodeIndex, HEADER_OFFSET, 'Index must be in absolute LView offset');\n                    icuStart(tView, lView, updateOpCodes, parentTNodeIndex, icuExpression, icuNodeIndex);\n                }\n            }\n        }\n        else {\n            // Odd indexes are placeholders (elements and sub-templates)\n            // At this point value is something like: '/#1:2' (originally coming from '�/#1:2�')\n            const isClosing = value.charCodeAt(0) === 47 /* CharCode.SLASH */;\n            const type = value.charCodeAt(isClosing ? 1 : 0);\n            ngDevMode && assertOneOf(type, 42 /* CharCode.STAR */, 35 /* CharCode.HASH */);\n            const index = HEADER_OFFSET + Number.parseInt(value.substring((isClosing ? 2 : 1)));\n            if (isClosing) {\n                existingTNodeStack.shift();\n                setCurrentTNode(getCurrentParentTNode(), false);\n            }\n            else {\n                const tNode = createTNodePlaceholder(tView, existingTNodeStack[0], index);\n                existingTNodeStack.unshift([]);\n                setCurrentTNode(tNode, true);\n            }\n        }\n    }\n    tView.data[index] = {\n        create: createOpCodes,\n        update: updateOpCodes,\n    };\n}\n/**\n * Allocate space in i18n Range add create OpCode instruction to create a text or comment node.\n *\n * @param tView Current `TView` needed to allocate space in i18n range.\n * @param rootTNode Root `TNode` of the i18n block. This node determines if the new TNode will be\n *     added as part of the `i18nStart` instruction or as part of the `TNode.insertBeforeIndex`.\n * @param existingTNodes internal state for `addTNodeAndUpdateInsertBeforeIndex`.\n * @param lView Current `LView` needed to allocate space in i18n range.\n * @param createOpCodes Array storing `I18nCreateOpCodes` where new opCodes will be added.\n * @param text Text to be added when the `Text` or `Comment` node will be created.\n * @param isICU true if a `Comment` node for ICU (instead of `Text`) node should be created.\n */\nfunction createTNodeAndAddOpCode(tView, rootTNode, existingTNodes, lView, createOpCodes, text, isICU) {\n    const i18nNodeIdx = allocExpando(tView, lView, 1, null);\n    let opCode = i18nNodeIdx << I18nCreateOpCode.SHIFT;\n    let parentTNode = getCurrentParentTNode();\n    if (rootTNode === parentTNode) {\n        // FIXME(misko): A null `parentTNode` should represent when we fall of the `LView` boundary.\n        // (there is no parent), but in some circumstances (because we are inconsistent about how we set\n        // `previousOrParentTNode`) it could point to `rootTNode` So this is a work around.\n        parentTNode = null;\n    }\n    if (parentTNode === null) {\n        // If we don't have a parent that means that we can eagerly add nodes.\n        // If we have a parent than these nodes can't be added now (as the parent has not been created\n        // yet) and instead the `parentTNode` is responsible for adding it. See\n        // `TNode.insertBeforeIndex`\n        opCode |= I18nCreateOpCode.APPEND_EAGERLY;\n    }\n    if (isICU) {\n        opCode |= I18nCreateOpCode.COMMENT;\n        ensureIcuContainerVisitorLoaded(loadIcuContainerVisitor);\n    }\n    createOpCodes.push(opCode, text === null ? '' : text);\n    // We store `{{?}}` so that when looking at debug `TNodeType.template` we can see where the\n    // bindings are.\n    const tNode = createTNodeAtIndex(tView, i18nNodeIdx, isICU ? 32 /* TNodeType.Icu */ : 1 /* TNodeType.Text */, text === null ? (ngDevMode ? '{{?}}' : '') : text, null);\n    addTNodeAndUpdateInsertBeforeIndex(existingTNodes, tNode);\n    const tNodeIdx = tNode.index;\n    setCurrentTNode(tNode, false /* Text nodes are self closing */);\n    if (parentTNode !== null && rootTNode !== parentTNode) {\n        // We are a child of deeper node (rather than a direct child of `i18nStart` instruction.)\n        // We have to make sure to add ourselves to the parent.\n        setTNodeInsertBeforeIndex(parentTNode, tNodeIdx);\n    }\n    return tNode;\n}\n/**\n * Processes text node in i18n block.\n *\n * Text nodes can have:\n * - Create instruction in `createOpCodes` for creating the text node.\n * - Allocate spec for text node in i18n range of `LView`\n * - If contains binding:\n *    - bindings => allocate space in i18n range of `LView` to store the binding value.\n *    - populate `updateOpCodes` with update instructions.\n *\n * @param tView Current `TView`\n * @param rootTNode Root `TNode` of the i18n block. This node determines if the new TNode will\n *     be added as part of the `i18nStart` instruction or as part of the\n *     `TNode.insertBeforeIndex`.\n * @param existingTNodes internal state for `addTNodeAndUpdateInsertBeforeIndex`.\n * @param createOpCodes Location where the creation OpCodes will be stored.\n * @param lView Current `LView`\n * @param text The translated text (which may contain binding)\n */\nfunction i18nStartFirstCreatePassProcessTextNode(tView, rootTNode, existingTNodes, createOpCodes, updateOpCodes, lView, text) {\n    const hasBinding = text.match(BINDING_REGEXP);\n    const tNode = createTNodeAndAddOpCode(tView, rootTNode, existingTNodes, lView, createOpCodes, hasBinding ? null : text, false);\n    if (hasBinding) {\n        generateBindingUpdateOpCodes(updateOpCodes, text, tNode.index, null, 0, null);\n    }\n}\n/**\n * See `i18nAttributes` above.\n */\nfunction i18nAttributesFirstPass(tView, index, values) {\n    const previousElement = getCurrentTNode();\n    const previousElementIndex = previousElement.index;\n    const updateOpCodes = [];\n    if (ngDevMode) {\n        attachDebugGetter(updateOpCodes, i18nUpdateOpCodesToString);\n    }\n    if (tView.firstCreatePass && tView.data[index] === null) {\n        for (let i = 0; i < values.length; i += 2) {\n            const attrName = values[i];\n            const message = values[i + 1];\n            if (message !== '') {\n                // Check if attribute value contains an ICU and throw an error if that's the case.\n                // ICUs in element attributes are not supported.\n                // Note: we intentionally retain the error here by not using `ngDevMode`, because\n                // the `value` can change based on the locale and users aren't guaranteed to hit\n                // an invalid string while they're developing.\n                if (ICU_REGEXP.test(message)) {\n                    throw new Error(`ICU expressions are not supported in attributes. Message: \"${message}\".`);\n                }\n                // i18n attributes that hit this code path are guaranteed to have bindings, because\n                // the compiler treats static i18n attributes as regular attribute bindings.\n                // Since this may not be the first i18n attribute on this element we need to pass in how\n                // many previous bindings there have already been.\n                generateBindingUpdateOpCodes(updateOpCodes, message, previousElementIndex, attrName, countBindings(updateOpCodes), null);\n            }\n        }\n        tView.data[index] = updateOpCodes;\n    }\n}\n/**\n * Generate the OpCodes to update the bindings of a string.\n *\n * @param updateOpCodes Place where the update opcodes will be stored.\n * @param str The string containing the bindings.\n * @param destinationNode Index of the destination node which will receive the binding.\n * @param attrName Name of the attribute, if the string belongs to an attribute.\n * @param sanitizeFn Sanitization function used to sanitize the string after update, if necessary.\n * @param bindingStart The lView index of the next expression that can be bound via an opCode.\n * @returns The mask value for these bindings\n */\nfunction generateBindingUpdateOpCodes(updateOpCodes, str, destinationNode, attrName, bindingStart, sanitizeFn) {\n    ngDevMode &&\n        assertGreaterThanOrEqual(destinationNode, HEADER_OFFSET, 'Index must be in absolute LView offset');\n    const maskIndex = updateOpCodes.length; // Location of mask\n    const sizeIndex = maskIndex + 1; // location of size for skipping\n    updateOpCodes.push(null, null); // Alloc space for mask and size\n    const startIndex = maskIndex + 2; // location of first allocation.\n    if (ngDevMode) {\n        attachDebugGetter(updateOpCodes, i18nUpdateOpCodesToString);\n    }\n    const textParts = str.split(BINDING_REGEXP);\n    let mask = 0;\n    for (let j = 0; j < textParts.length; j++) {\n        const textValue = textParts[j];\n        if (j & 1) {\n            // Odd indexes are bindings\n            const bindingIndex = bindingStart + parseInt(textValue, 10);\n            updateOpCodes.push(-1 - bindingIndex);\n            mask = mask | toMaskBit(bindingIndex);\n        }\n        else if (textValue !== '') {\n            // Even indexes are text\n            updateOpCodes.push(textValue);\n        }\n    }\n    updateOpCodes.push(destinationNode << 2 /* I18nUpdateOpCode.SHIFT_REF */ |\n        (attrName ? 1 /* I18nUpdateOpCode.Attr */ : 0 /* I18nUpdateOpCode.Text */));\n    if (attrName) {\n        updateOpCodes.push(attrName, sanitizeFn);\n    }\n    updateOpCodes[maskIndex] = mask;\n    updateOpCodes[sizeIndex] = updateOpCodes.length - startIndex;\n    return mask;\n}\n/**\n * Count the number of bindings in the given `opCodes`.\n *\n * It could be possible to speed this up, by passing the number of bindings found back from\n * `generateBindingUpdateOpCodes()` to `i18nAttributesFirstPass()` but this would then require more\n * complexity in the code and/or transient objects to be created.\n *\n * Since this function is only called once when the template is instantiated, is trivial in the\n * first instance (since `opCodes` will be an empty array), and it is not common for elements to\n * contain multiple i18n bound attributes, it seems like this is a reasonable compromise.\n */\nfunction countBindings(opCodes) {\n    let count = 0;\n    for (let i = 0; i < opCodes.length; i++) {\n        const opCode = opCodes[i];\n        // Bindings are negative numbers.\n        if (typeof opCode === 'number' && opCode < 0) {\n            count++;\n        }\n    }\n    return count;\n}\n/**\n * Convert binding index to mask bit.\n *\n * Each index represents a single bit on the bit-mask. Because bit-mask only has 32 bits, we make\n * the 32nd bit share all masks for all bindings higher than 32. Since it is extremely rare to\n * have more than 32 bindings this will be hit very rarely. The downside of hitting this corner\n * case is that we will execute binding code more often than necessary. (penalty of performance)\n */\nfunction toMaskBit(bindingIndex) {\n    return 1 << Math.min(bindingIndex, 31);\n}\nfunction isRootTemplateMessage(subTemplateIndex) {\n    return subTemplateIndex === -1;\n}\n/**\n * Removes everything inside the sub-templates of a message.\n */\nfunction removeInnerTemplateTranslation(message) {\n    let match;\n    let res = '';\n    let index = 0;\n    let inTemplate = false;\n    let tagMatched;\n    while ((match = SUBTEMPLATE_REGEXP.exec(message)) !== null) {\n        if (!inTemplate) {\n            res += message.substring(index, match.index + match[0].length);\n            tagMatched = match[1];\n            inTemplate = true;\n        }\n        else {\n            if (match[0] === `${MARKER}/*${tagMatched}${MARKER}`) {\n                index = match.index;\n                inTemplate = false;\n            }\n        }\n    }\n    ngDevMode &&\n        assertEqual(inTemplate, false, `Tag mismatch: unable to find the end of the sub-template in the translation \"${message}\"`);\n    res += message.slice(index);\n    return res;\n}\n/**\n * Extracts a part of a message and removes the rest.\n *\n * This method is used for extracting a part of the message associated with a template. A\n * translated message can span multiple templates.\n *\n * Example:\n * ```\n * <div i18n>Translate <span *ngIf>me</span>!</div>\n * ```\n *\n * @param message The message to crop\n * @param subTemplateIndex Index of the sub-template to extract. If undefined it returns the\n * external template and removes all sub-templates.\n */\nfunction getTranslationForTemplate(message, subTemplateIndex) {\n    if (isRootTemplateMessage(subTemplateIndex)) {\n        // We want the root template message, ignore all sub-templates\n        return removeInnerTemplateTranslation(message);\n    }\n    else {\n        // We want a specific sub-template\n        const start = message.indexOf(`:${subTemplateIndex}${MARKER}`) + 2 + subTemplateIndex.toString().length;\n        const end = message.search(new RegExp(`${MARKER}\\\\/\\\\*\\\\d+:${subTemplateIndex}${MARKER}`));\n        return removeInnerTemplateTranslation(message.substring(start, end));\n    }\n}\n/**\n * Generate the OpCodes for ICU expressions.\n *\n * @param icuExpression\n * @param index Index where the anchor is stored and an optional `TIcuContainerNode`\n *   - `lView[anchorIdx]` points to a `Comment` node representing the anchor for the ICU.\n *   - `tView.data[anchorIdx]` points to the `TIcuContainerNode` if ICU is root (`null` otherwise)\n */\nfunction icuStart(tView, lView, updateOpCodes, parentIdx, icuExpression, anchorIdx) {\n    ngDevMode && assertDefined(icuExpression, 'ICU expression must be defined');\n    let bindingMask = 0;\n    const tIcu = {\n        type: icuExpression.type,\n        currentCaseLViewIndex: allocExpando(tView, lView, 1, null),\n        anchorIdx,\n        cases: [],\n        create: [],\n        remove: [],\n        update: []\n    };\n    addUpdateIcuSwitch(updateOpCodes, icuExpression, anchorIdx);\n    setTIcu(tView, anchorIdx, tIcu);\n    const values = icuExpression.values;\n    for (let i = 0; i < values.length; i++) {\n        // Each value is an array of strings & other ICU expressions\n        const valueArr = values[i];\n        const nestedIcus = [];\n        for (let j = 0; j < valueArr.length; j++) {\n            const value = valueArr[j];\n            if (typeof value !== 'string') {\n                // It is an nested ICU expression\n                const icuIndex = nestedIcus.push(value) - 1;\n                // Replace nested ICU expression by a comment node\n                valueArr[j] = `<!--�${icuIndex}�-->`;\n            }\n        }\n        bindingMask = parseIcuCase(tView, tIcu, lView, updateOpCodes, parentIdx, icuExpression.cases[i], valueArr.join(''), nestedIcus) |\n            bindingMask;\n    }\n    if (bindingMask) {\n        addUpdateIcuUpdate(updateOpCodes, bindingMask, anchorIdx);\n    }\n}\n/**\n * Parses text containing an ICU expression and produces a JSON object for it.\n * Original code from closure library, modified for Angular.\n *\n * @param pattern Text containing an ICU expression that needs to be parsed.\n *\n */\nfunction parseICUBlock(pattern) {\n    const cases = [];\n    const values = [];\n    let icuType = 1 /* IcuType.plural */;\n    let mainBinding = 0;\n    pattern = pattern.replace(ICU_BLOCK_REGEXP, function (str, binding, type) {\n        if (type === 'select') {\n            icuType = 0 /* IcuType.select */;\n        }\n        else {\n            icuType = 1 /* IcuType.plural */;\n        }\n        mainBinding = parseInt(binding.slice(1), 10);\n        return '';\n    });\n    const parts = i18nParseTextIntoPartsAndICU(pattern);\n    // Looking for (key block)+ sequence. One of the keys has to be \"other\".\n    for (let pos = 0; pos < parts.length;) {\n        let key = parts[pos++].trim();\n        if (icuType === 1 /* IcuType.plural */) {\n            // Key can be \"=x\", we just want \"x\"\n            key = key.replace(/\\s*(?:=)?(\\w+)\\s*/, '$1');\n        }\n        if (key.length) {\n            cases.push(key);\n        }\n        const blocks = i18nParseTextIntoPartsAndICU(parts[pos++]);\n        if (cases.length > values.length) {\n            values.push(blocks);\n        }\n    }\n    // TODO(ocombe): support ICU expressions in attributes, see #21615\n    return { type: icuType, mainBinding: mainBinding, cases, values };\n}\n/**\n * Breaks pattern into strings and top level {...} blocks.\n * Can be used to break a message into text and ICU expressions, or to break an ICU expression\n * into keys and cases. Original code from closure library, modified for Angular.\n *\n * @param pattern (sub)Pattern to be broken.\n * @returns An `Array<string|IcuExpression>` where:\n *   - odd positions: `string` => text between ICU expressions\n *   - even positions: `ICUExpression` => ICU expression parsed into `ICUExpression` record.\n */\nfunction i18nParseTextIntoPartsAndICU(pattern) {\n    if (!pattern) {\n        return [];\n    }\n    let prevPos = 0;\n    const braceStack = [];\n    const results = [];\n    const braces = /[{}]/g;\n    // lastIndex doesn't get set to 0 so we have to.\n    braces.lastIndex = 0;\n    let match;\n    while (match = braces.exec(pattern)) {\n        const pos = match.index;\n        if (match[0] == '}') {\n            braceStack.pop();\n            if (braceStack.length == 0) {\n                // End of the block.\n                const block = pattern.substring(prevPos, pos);\n                if (ICU_BLOCK_REGEXP.test(block)) {\n                    results.push(parseICUBlock(block));\n                }\n                else {\n                    results.push(block);\n                }\n                prevPos = pos + 1;\n            }\n        }\n        else {\n            if (braceStack.length == 0) {\n                const substring = pattern.substring(prevPos, pos);\n                results.push(substring);\n                prevPos = pos + 1;\n            }\n            braceStack.push('{');\n        }\n    }\n    const substring = pattern.substring(prevPos);\n    results.push(substring);\n    return results;\n}\n/**\n * Parses a node, its children and its siblings, and generates the mutate & update OpCodes.\n *\n */\nfunction parseIcuCase(tView, tIcu, lView, updateOpCodes, parentIdx, caseName, unsafeCaseHtml, nestedIcus) {\n    const create = [];\n    const remove = [];\n    const update = [];\n    if (ngDevMode) {\n        attachDebugGetter(create, icuCreateOpCodesToString);\n        attachDebugGetter(remove, i18nRemoveOpCodesToString);\n        attachDebugGetter(update, i18nUpdateOpCodesToString);\n    }\n    tIcu.cases.push(caseName);\n    tIcu.create.push(create);\n    tIcu.remove.push(remove);\n    tIcu.update.push(update);\n    const inertBodyHelper = getInertBodyHelper(getDocument());\n    const inertBodyElement = inertBodyHelper.getInertBodyElement(unsafeCaseHtml);\n    ngDevMode && assertDefined(inertBodyElement, 'Unable to generate inert body element');\n    const inertRootNode = getTemplateContent(inertBodyElement) || inertBodyElement;\n    if (inertRootNode) {\n        return walkIcuTree(tView, tIcu, lView, updateOpCodes, create, remove, update, inertRootNode, parentIdx, nestedIcus, 0);\n    }\n    else {\n        return 0;\n    }\n}\nfunction walkIcuTree(tView, tIcu, lView, sharedUpdateOpCodes, create, remove, update, parentNode, parentIdx, nestedIcus, depth) {\n    let bindingMask = 0;\n    let currentNode = parentNode.firstChild;\n    while (currentNode) {\n        const newIndex = allocExpando(tView, lView, 1, null);\n        switch (currentNode.nodeType) {\n            case Node.ELEMENT_NODE:\n                const element = currentNode;\n                const tagName = element.tagName.toLowerCase();\n                if (VALID_ELEMENTS.hasOwnProperty(tagName)) {\n                    addCreateNodeAndAppend(create, ELEMENT_MARKER, tagName, parentIdx, newIndex);\n                    tView.data[newIndex] = tagName;\n                    const elAttrs = element.attributes;\n                    for (let i = 0; i < elAttrs.length; i++) {\n                        const attr = elAttrs.item(i);\n                        const lowerAttrName = attr.name.toLowerCase();\n                        const hasBinding = !!attr.value.match(BINDING_REGEXP);\n                        // we assume the input string is safe, unless it's using a binding\n                        if (hasBinding) {\n                            if (VALID_ATTRS.hasOwnProperty(lowerAttrName)) {\n                                if (URI_ATTRS[lowerAttrName]) {\n                                    generateBindingUpdateOpCodes(update, attr.value, newIndex, attr.name, 0, _sanitizeUrl);\n                                }\n                                else {\n                                    generateBindingUpdateOpCodes(update, attr.value, newIndex, attr.name, 0, null);\n                                }\n                            }\n                            else {\n                                ngDevMode &&\n                                    console.warn(`WARNING: ignoring unsafe attribute value ` +\n                                        `${lowerAttrName} on element ${tagName} ` +\n                                        `(see ${XSS_SECURITY_URL})`);\n                            }\n                        }\n                        else {\n                            addCreateAttribute(create, newIndex, attr);\n                        }\n                    }\n                    // Parse the children of this node (if any)\n                    bindingMask = walkIcuTree(tView, tIcu, lView, sharedUpdateOpCodes, create, remove, update, currentNode, newIndex, nestedIcus, depth + 1) |\n                        bindingMask;\n                    addRemoveNode(remove, newIndex, depth);\n                }\n                break;\n            case Node.TEXT_NODE:\n                const value = currentNode.textContent || '';\n                const hasBinding = value.match(BINDING_REGEXP);\n                addCreateNodeAndAppend(create, null, hasBinding ? '' : value, parentIdx, newIndex);\n                addRemoveNode(remove, newIndex, depth);\n                if (hasBinding) {\n                    bindingMask =\n                        generateBindingUpdateOpCodes(update, value, newIndex, null, 0, null) | bindingMask;\n                }\n                break;\n            case Node.COMMENT_NODE:\n                // Check if the comment node is a placeholder for a nested ICU\n                const isNestedIcu = NESTED_ICU.exec(currentNode.textContent || '');\n                if (isNestedIcu) {\n                    const nestedIcuIndex = parseInt(isNestedIcu[1], 10);\n                    const icuExpression = nestedIcus[nestedIcuIndex];\n                    // Create the comment node that will anchor the ICU expression\n                    addCreateNodeAndAppend(create, ICU_MARKER, ngDevMode ? `nested ICU ${nestedIcuIndex}` : '', parentIdx, newIndex);\n                    icuStart(tView, lView, sharedUpdateOpCodes, parentIdx, icuExpression, newIndex);\n                    addRemoveNestedIcu(remove, newIndex, depth);\n                }\n                break;\n        }\n        currentNode = currentNode.nextSibling;\n    }\n    return bindingMask;\n}\nfunction addRemoveNode(remove, index, depth) {\n    if (depth === 0) {\n        remove.push(index);\n    }\n}\nfunction addRemoveNestedIcu(remove, index, depth) {\n    if (depth === 0) {\n        remove.push(~index); // remove ICU at `index`\n        remove.push(index); // remove ICU comment at `index`\n    }\n}\nfunction addUpdateIcuSwitch(update, icuExpression, index) {\n    update.push(toMaskBit(icuExpression.mainBinding), 2, -1 - icuExpression.mainBinding, index << 2 /* I18nUpdateOpCode.SHIFT_REF */ | 2 /* I18nUpdateOpCode.IcuSwitch */);\n}\nfunction addUpdateIcuUpdate(update, bindingMask, index) {\n    update.push(bindingMask, 1, index << 2 /* I18nUpdateOpCode.SHIFT_REF */ | 3 /* I18nUpdateOpCode.IcuUpdate */);\n}\nfunction addCreateNodeAndAppend(create, marker, text, appendToParentIdx, createAtIdx) {\n    if (marker !== null) {\n        create.push(marker);\n    }\n    create.push(text, createAtIdx, icuCreateOpCode(0 /* IcuCreateOpCode.AppendChild */, appendToParentIdx, createAtIdx));\n}\nfunction addCreateAttribute(create, newIndex, attr) {\n    create.push(newIndex << 1 /* IcuCreateOpCode.SHIFT_REF */ | 1 /* IcuCreateOpCode.Attr */, attr.name, attr.value);\n}\n\n// i18nPostprocess consts\nconst ROOT_TEMPLATE_ID = 0;\nconst PP_MULTI_VALUE_PLACEHOLDERS_REGEXP = /\\[(�.+?�?)\\]/;\nconst PP_PLACEHOLDERS_REGEXP = /\\[(�.+?�?)\\]|(�\\/?\\*\\d+:\\d+�)/g;\nconst PP_ICU_VARS_REGEXP = /({\\s*)(VAR_(PLURAL|SELECT)(_\\d+)?)(\\s*,)/g;\nconst PP_ICU_PLACEHOLDERS_REGEXP = /{([A-Z0-9_]+)}/g;\nconst PP_ICUS_REGEXP = /�I18N_EXP_(ICU(_\\d+)?)�/g;\nconst PP_CLOSE_TEMPLATE_REGEXP = /\\/\\*/;\nconst PP_TEMPLATE_ID_REGEXP = /\\d+\\:(\\d+)/;\n/**\n * Handles message string post-processing for internationalization.\n *\n * Handles message string post-processing by transforming it from intermediate\n * format (that might contain some markers that we need to replace) to the final\n * form, consumable by i18nStart instruction. Post processing steps include:\n *\n * 1. Resolve all multi-value cases (like [�*1:1��#2:1�|�#4:1�|�5�])\n * 2. Replace all ICU vars (like \"VAR_PLURAL\")\n * 3. Replace all placeholders used inside ICUs in a form of {PLACEHOLDER}\n * 4. Replace all ICU references with corresponding values (like �ICU_EXP_ICU_1�)\n *    in case multiple ICUs have the same placeholder name\n *\n * @param message Raw translation string for post processing\n * @param replacements Set of replacements that should be applied\n *\n * @returns Transformed string that can be consumed by i18nStart instruction\n *\n * @codeGenApi\n */\nfunction i18nPostprocess(message, replacements = {}) {\n    /**\n     * Step 1: resolve all multi-value placeholders like [�#5�|�*1:1��#2:1�|�#4:1�]\n     *\n     * Note: due to the way we process nested templates (BFS), multi-value placeholders are typically\n     * grouped by templates, for example: [�#5�|�#6�|�#1:1�|�#3:2�] where �#5� and �#6� belong to root\n     * template, �#1:1� belong to nested template with index 1 and �#1:2� - nested template with index\n     * 3. However in real templates the order might be different: i.e. �#1:1� and/or �#3:2� may go in\n     * front of �#6�. The post processing step restores the right order by keeping track of the\n     * template id stack and looks for placeholders that belong to the currently active template.\n     */\n    let result = message;\n    if (PP_MULTI_VALUE_PLACEHOLDERS_REGEXP.test(message)) {\n        const matches = {};\n        const templateIdsStack = [ROOT_TEMPLATE_ID];\n        result = result.replace(PP_PLACEHOLDERS_REGEXP, (m, phs, tmpl) => {\n            const content = phs || tmpl;\n            const placeholders = matches[content] || [];\n            if (!placeholders.length) {\n                content.split('|').forEach((placeholder) => {\n                    const match = placeholder.match(PP_TEMPLATE_ID_REGEXP);\n                    const templateId = match ? parseInt(match[1], 10) : ROOT_TEMPLATE_ID;\n                    const isCloseTemplateTag = PP_CLOSE_TEMPLATE_REGEXP.test(placeholder);\n                    placeholders.push([templateId, isCloseTemplateTag, placeholder]);\n                });\n                matches[content] = placeholders;\n            }\n            if (!placeholders.length) {\n                throw new Error(`i18n postprocess: unmatched placeholder - ${content}`);\n            }\n            const currentTemplateId = templateIdsStack[templateIdsStack.length - 1];\n            let idx = 0;\n            // find placeholder index that matches current template id\n            for (let i = 0; i < placeholders.length; i++) {\n                if (placeholders[i][0] === currentTemplateId) {\n                    idx = i;\n                    break;\n                }\n            }\n            // update template id stack based on the current tag extracted\n            const [templateId, isCloseTemplateTag, placeholder] = placeholders[idx];\n            if (isCloseTemplateTag) {\n                templateIdsStack.pop();\n            }\n            else if (currentTemplateId !== templateId) {\n                templateIdsStack.push(templateId);\n            }\n            // remove processed tag from the list\n            placeholders.splice(idx, 1);\n            return placeholder;\n        });\n    }\n    // return current result if no replacements specified\n    if (!Object.keys(replacements).length) {\n        return result;\n    }\n    /**\n     * Step 2: replace all ICU vars (like \"VAR_PLURAL\")\n     */\n    result = result.replace(PP_ICU_VARS_REGEXP, (match, start, key, _type, _idx, end) => {\n        return replacements.hasOwnProperty(key) ? `${start}${replacements[key]}${end}` : match;\n    });\n    /**\n     * Step 3: replace all placeholders used inside ICUs in a form of {PLACEHOLDER}\n     */\n    result = result.replace(PP_ICU_PLACEHOLDERS_REGEXP, (match, key) => {\n        return replacements.hasOwnProperty(key) ? replacements[key] : match;\n    });\n    /**\n     * Step 4: replace all ICU references with corresponding values (like �ICU_EXP_ICU_1�) in case\n     * multiple ICUs have the same placeholder name\n     */\n    result = result.replace(PP_ICUS_REGEXP, (match, key) => {\n        if (replacements.hasOwnProperty(key)) {\n            const list = replacements[key];\n            if (!list.length) {\n                throw new Error(`i18n postprocess: unmatched ICU - ${match} with key: ${key}`);\n            }\n            return list.shift();\n        }\n        return match;\n    });\n    return result;\n}\n\n/**\n * Marks a block of text as translatable.\n *\n * The instructions `i18nStart` and `i18nEnd` mark the translation block in the template.\n * The translation `message` is the value which is locale specific. The translation string may\n * contain placeholders which associate inner elements and sub-templates within the translation.\n *\n * The translation `message` placeholders are:\n * - `�{index}(:{block})�`: *Binding Placeholder*: Marks a location where an expression will be\n *   interpolated into. The placeholder `index` points to the expression binding index. An optional\n *   `block` that matches the sub-template in which it was declared.\n * - `�#{index}(:{block})�`/`�/#{index}(:{block})�`: *Element Placeholder*:  Marks the beginning\n *   and end of DOM element that were embedded in the original translation block. The placeholder\n *   `index` points to the element index in the template instructions set. An optional `block` that\n *   matches the sub-template in which it was declared.\n * - `�*{index}:{block}�`/`�/*{index}:{block}�`: *Sub-template Placeholder*: Sub-templates must be\n *   split up and translated separately in each angular template function. The `index` points to the\n *   `template` instruction index. A `block` that matches the sub-template in which it was declared.\n *\n * @param index A unique index of the translation in the static block.\n * @param messageIndex An index of the translation message from the `def.consts` array.\n * @param subTemplateIndex Optional sub-template index in the `message`.\n *\n * @codeGenApi\n */\nfunction ɵɵi18nStart(index, messageIndex, subTemplateIndex = -1) {\n    const tView = getTView();\n    const lView = getLView();\n    const adjustedIndex = HEADER_OFFSET + index;\n    ngDevMode && assertDefined(tView, `tView should be defined`);\n    const message = getConstant(tView.consts, messageIndex);\n    const parentTNode = getCurrentParentTNode();\n    if (tView.firstCreatePass) {\n        i18nStartFirstCreatePass(tView, parentTNode === null ? 0 : parentTNode.index, lView, adjustedIndex, message, subTemplateIndex);\n    }\n    // Set a flag that this LView has i18n blocks.\n    // The flag is later used to determine whether this component should\n    // be hydrated (currently hydration is not supported for i18n blocks).\n    if (tView.type === 2 /* TViewType.Embedded */) {\n        // Annotate host component's LView (not embedded view's LView),\n        // since hydration can be skipped on per-component basis only.\n        const componentLView = lView[DECLARATION_COMPONENT_VIEW];\n        componentLView[FLAGS] |= 32 /* LViewFlags.HasI18n */;\n    }\n    else {\n        lView[FLAGS] |= 32 /* LViewFlags.HasI18n */;\n    }\n    const tI18n = tView.data[adjustedIndex];\n    const sameViewParentTNode = parentTNode === lView[T_HOST] ? null : parentTNode;\n    const parentRNode = getClosestRElement(tView, sameViewParentTNode, lView);\n    // If `parentTNode` is an `ElementContainer` than it has `<!--ng-container--->`.\n    // When we do inserts we have to make sure to insert in front of `<!--ng-container--->`.\n    const insertInFrontOf = parentTNode && (parentTNode.type & 8 /* TNodeType.ElementContainer */) ?\n        lView[parentTNode.index] :\n        null;\n    applyCreateOpCodes(lView, tI18n.create, parentRNode, insertInFrontOf);\n    setInI18nBlock(true);\n}\n/**\n * Translates a translation block marked by `i18nStart` and `i18nEnd`. It inserts the text/ICU nodes\n * into the render tree, moves the placeholder nodes and removes the deleted nodes.\n *\n * @codeGenApi\n */\nfunction ɵɵi18nEnd() {\n    setInI18nBlock(false);\n}\n/**\n *\n * Use this instruction to create a translation block that doesn't contain any placeholder.\n * It calls both {@link i18nStart} and {@link i18nEnd} in one instruction.\n *\n * The translation `message` is the value which is locale specific. The translation string may\n * contain placeholders which associate inner elements and sub-templates within the translation.\n *\n * The translation `message` placeholders are:\n * - `�{index}(:{block})�`: *Binding Placeholder*: Marks a location where an expression will be\n *   interpolated into. The placeholder `index` points to the expression binding index. An optional\n *   `block` that matches the sub-template in which it was declared.\n * - `�#{index}(:{block})�`/`�/#{index}(:{block})�`: *Element Placeholder*:  Marks the beginning\n *   and end of DOM element that were embedded in the original translation block. The placeholder\n *   `index` points to the element index in the template instructions set. An optional `block` that\n *   matches the sub-template in which it was declared.\n * - `�*{index}:{block}�`/`�/*{index}:{block}�`: *Sub-template Placeholder*: Sub-templates must be\n *   split up and translated separately in each angular template function. The `index` points to the\n *   `template` instruction index. A `block` that matches the sub-template in which it was declared.\n *\n * @param index A unique index of the translation in the static block.\n * @param messageIndex An index of the translation message from the `def.consts` array.\n * @param subTemplateIndex Optional sub-template index in the `message`.\n *\n * @codeGenApi\n */\nfunction ɵɵi18n(index, messageIndex, subTemplateIndex) {\n    ɵɵi18nStart(index, messageIndex, subTemplateIndex);\n    ɵɵi18nEnd();\n}\n/**\n * Marks a list of attributes as translatable.\n *\n * @param index A unique index in the static block\n * @param values\n *\n * @codeGenApi\n */\nfunction ɵɵi18nAttributes(index, attrsIndex) {\n    const tView = getTView();\n    ngDevMode && assertDefined(tView, `tView should be defined`);\n    const attrs = getConstant(tView.consts, attrsIndex);\n    i18nAttributesFirstPass(tView, index + HEADER_OFFSET, attrs);\n}\n/**\n * Stores the values of the bindings during each update cycle in order to determine if we need to\n * update the translated nodes.\n *\n * @param value The binding's value\n * @returns This function returns itself so that it may be chained\n * (e.g. `i18nExp(ctx.name)(ctx.title)`)\n *\n * @codeGenApi\n */\nfunction ɵɵi18nExp(value) {\n    const lView = getLView();\n    setMaskBit(bindingUpdated(lView, nextBindingIndex(), value));\n    return ɵɵi18nExp;\n}\n/**\n * Updates a translation block or an i18n attribute when the bindings have changed.\n *\n * @param index Index of either {@link i18nStart} (translation block) or {@link i18nAttributes}\n * (i18n attribute) on which it should update the content.\n *\n * @codeGenApi\n */\nfunction ɵɵi18nApply(index) {\n    applyI18n(getTView(), getLView(), index + HEADER_OFFSET);\n}\n/**\n * Handles message string post-processing for internationalization.\n *\n * Handles message string post-processing by transforming it from intermediate\n * format (that might contain some markers that we need to replace) to the final\n * form, consumable by i18nStart instruction. Post processing steps include:\n *\n * 1. Resolve all multi-value cases (like [�*1:1��#2:1�|�#4:1�|�5�])\n * 2. Replace all ICU vars (like \"VAR_PLURAL\")\n * 3. Replace all placeholders used inside ICUs in a form of {PLACEHOLDER}\n * 4. Replace all ICU references with corresponding values (like �ICU_EXP_ICU_1�)\n *    in case multiple ICUs have the same placeholder name\n *\n * @param message Raw translation string for post processing\n * @param replacements Set of replacements that should be applied\n *\n * @returns Transformed string that can be consumed by i18nStart instruction\n *\n * @codeGenApi\n */\nfunction ɵɵi18nPostprocess(message, replacements = {}) {\n    return i18nPostprocess(message, replacements);\n}\n\n/**\n * Creates runtime data structures for `{#defer}` blocks.\n *\n * @param index The index of the defer block in the data array\n * @param deferredDepsFn Function that contains dependencies for this defer block\n *\n * @codeGenApi\n */\nfunction ɵɵdefer(index, deferredDepsFn) {\n    // TODO: implement runtime logic.\n}\n\n/*\n * This file re-exports all symbols contained in this directory.\n *\n * Why is this file not `index.ts`?\n *\n * There seems to be an inconsistent path resolution of an `index.ts` file\n * when only the parent directory is referenced. This could be due to the\n * node module resolution configuration differing from rollup and/or typescript.\n *\n * With commit\n * https://github.com/angular/angular/commit/d5e3f2c64bd13ce83e7c70788b7fc514ca4a9918\n * the `instructions.ts` file was moved to `instructions/instructions.ts` and an\n * `index.ts` file was used to re-export everything. Having had file names that were\n * importing from `instructions' directly (not the from the sub file or the `index.ts`\n * file) caused strange CI issues. `index.ts` had to be renamed to `all.ts` for this\n * to work.\n *\n * Jira Issue = FW-1184\n */\n\n/**\n * Resolves the providers which are defined in the DirectiveDef.\n *\n * When inserting the tokens and the factories in their respective arrays, we can assume that\n * this method is called first for the component (if any), and then for other directives on the same\n * node.\n * As a consequence,the providers are always processed in that order:\n * 1) The view providers of the component\n * 2) The providers of the component\n * 3) The providers of the other directives\n * This matches the structure of the injectables arrays of a view (for each node).\n * So the tokens and the factories can be pushed at the end of the arrays, except\n * in one case for multi providers.\n *\n * @param def the directive definition\n * @param providers: Array of `providers`.\n * @param viewProviders: Array of `viewProviders`.\n */\nfunction providersResolver(def, providers, viewProviders) {\n    const tView = getTView();\n    if (tView.firstCreatePass) {\n        const isComponent = isComponentDef(def);\n        // The list of view providers is processed first, and the flags are updated\n        resolveProvider(viewProviders, tView.data, tView.blueprint, isComponent, true);\n        // Then, the list of providers is processed, and the flags are updated\n        resolveProvider(providers, tView.data, tView.blueprint, isComponent, false);\n    }\n}\n/**\n * Resolves a provider and publishes it to the DI system.\n */\nfunction resolveProvider(provider, tInjectables, lInjectablesBlueprint, isComponent, isViewProvider) {\n    provider = resolveForwardRef(provider);\n    if (Array.isArray(provider)) {\n        // Recursively call `resolveProvider`\n        // Recursion is OK in this case because this code will not be in hot-path once we implement\n        // cloning of the initial state.\n        for (let i = 0; i < provider.length; i++) {\n            resolveProvider(provider[i], tInjectables, lInjectablesBlueprint, isComponent, isViewProvider);\n        }\n    }\n    else {\n        const tView = getTView();\n        const lView = getLView();\n        const tNode = getCurrentTNode();\n        let token = isTypeProvider(provider) ? provider : resolveForwardRef(provider.provide);\n        const providerFactory = providerToFactory(provider);\n        if (ngDevMode) {\n            const injector = new NodeInjector(tNode, lView);\n            runInInjectorProfilerContext(injector, token, () => {\n                emitProviderConfiguredEvent(provider, isViewProvider);\n            });\n        }\n        const beginIndex = tNode.providerIndexes & 1048575 /* TNodeProviderIndexes.ProvidersStartIndexMask */;\n        const endIndex = tNode.directiveStart;\n        const cptViewProvidersCount = tNode.providerIndexes >> 20 /* TNodeProviderIndexes.CptViewProvidersCountShift */;\n        if (isTypeProvider(provider) || !provider.multi) {\n            // Single provider case: the factory is created and pushed immediately\n            const factory = new NodeInjectorFactory(providerFactory, isViewProvider, ɵɵdirectiveInject);\n            const existingFactoryIndex = indexOf(token, tInjectables, isViewProvider ? beginIndex : beginIndex + cptViewProvidersCount, endIndex);\n            if (existingFactoryIndex === -1) {\n                diPublicInInjector(getOrCreateNodeInjectorForNode(tNode, lView), tView, token);\n                registerDestroyHooksIfSupported(tView, provider, tInjectables.length);\n                tInjectables.push(token);\n                tNode.directiveStart++;\n                tNode.directiveEnd++;\n                if (isViewProvider) {\n                    tNode.providerIndexes += 1048576 /* TNodeProviderIndexes.CptViewProvidersCountShifter */;\n                }\n                lInjectablesBlueprint.push(factory);\n                lView.push(factory);\n            }\n            else {\n                lInjectablesBlueprint[existingFactoryIndex] = factory;\n                lView[existingFactoryIndex] = factory;\n            }\n        }\n        else {\n            // Multi provider case:\n            // We create a multi factory which is going to aggregate all the values.\n            // Since the output of such a factory depends on content or view injection,\n            // we create two of them, which are linked together.\n            //\n            // The first one (for view providers) is always in the first block of the injectables array,\n            // and the second one (for providers) is always in the second block.\n            // This is important because view providers have higher priority. When a multi token\n            // is being looked up, the view providers should be found first.\n            // Note that it is not possible to have a multi factory in the third block (directive block).\n            //\n            // The algorithm to process multi providers is as follows:\n            // 1) If the multi provider comes from the `viewProviders` of the component:\n            //   a) If the special view providers factory doesn't exist, it is created and pushed.\n            //   b) Else, the multi provider is added to the existing multi factory.\n            // 2) If the multi provider comes from the `providers` of the component or of another\n            // directive:\n            //   a) If the multi factory doesn't exist, it is created and provider pushed into it.\n            //      It is also linked to the multi factory for view providers, if it exists.\n            //   b) Else, the multi provider is added to the existing multi factory.\n            const existingProvidersFactoryIndex = indexOf(token, tInjectables, beginIndex + cptViewProvidersCount, endIndex);\n            const existingViewProvidersFactoryIndex = indexOf(token, tInjectables, beginIndex, beginIndex + cptViewProvidersCount);\n            const doesProvidersFactoryExist = existingProvidersFactoryIndex >= 0 &&\n                lInjectablesBlueprint[existingProvidersFactoryIndex];\n            const doesViewProvidersFactoryExist = existingViewProvidersFactoryIndex >= 0 &&\n                lInjectablesBlueprint[existingViewProvidersFactoryIndex];\n            if (isViewProvider && !doesViewProvidersFactoryExist ||\n                !isViewProvider && !doesProvidersFactoryExist) {\n                // Cases 1.a and 2.a\n                diPublicInInjector(getOrCreateNodeInjectorForNode(tNode, lView), tView, token);\n                const factory = multiFactory(isViewProvider ? multiViewProvidersFactoryResolver : multiProvidersFactoryResolver, lInjectablesBlueprint.length, isViewProvider, isComponent, providerFactory);\n                if (!isViewProvider && doesViewProvidersFactoryExist) {\n                    lInjectablesBlueprint[existingViewProvidersFactoryIndex].providerFactory = factory;\n                }\n                registerDestroyHooksIfSupported(tView, provider, tInjectables.length, 0);\n                tInjectables.push(token);\n                tNode.directiveStart++;\n                tNode.directiveEnd++;\n                if (isViewProvider) {\n                    tNode.providerIndexes += 1048576 /* TNodeProviderIndexes.CptViewProvidersCountShifter */;\n                }\n                lInjectablesBlueprint.push(factory);\n                lView.push(factory);\n            }\n            else {\n                // Cases 1.b and 2.b\n                const indexInFactory = multiFactoryAdd(lInjectablesBlueprint[isViewProvider ? existingViewProvidersFactoryIndex :\n                    existingProvidersFactoryIndex], providerFactory, !isViewProvider && isComponent);\n                registerDestroyHooksIfSupported(tView, provider, existingProvidersFactoryIndex > -1 ? existingProvidersFactoryIndex :\n                    existingViewProvidersFactoryIndex, indexInFactory);\n            }\n            if (!isViewProvider && isComponent && doesViewProvidersFactoryExist) {\n                lInjectablesBlueprint[existingViewProvidersFactoryIndex].componentProviders++;\n            }\n        }\n    }\n}\n/**\n * Registers the `ngOnDestroy` hook of a provider, if the provider supports destroy hooks.\n * @param tView `TView` in which to register the hook.\n * @param provider Provider whose hook should be registered.\n * @param contextIndex Index under which to find the context for the hook when it's being invoked.\n * @param indexInFactory Only required for `multi` providers. Index of the provider in the multi\n * provider factory.\n */\nfunction registerDestroyHooksIfSupported(tView, provider, contextIndex, indexInFactory) {\n    const providerIsTypeProvider = isTypeProvider(provider);\n    const providerIsClassProvider = isClassProvider(provider);\n    if (providerIsTypeProvider || providerIsClassProvider) {\n        // Resolve forward references as `useClass` can hold a forward reference.\n        const classToken = providerIsClassProvider ? resolveForwardRef(provider.useClass) : provider;\n        const prototype = classToken.prototype;\n        const ngOnDestroy = prototype.ngOnDestroy;\n        if (ngOnDestroy) {\n            const hooks = tView.destroyHooks || (tView.destroyHooks = []);\n            if (!providerIsTypeProvider && provider.multi) {\n                ngDevMode &&\n                    assertDefined(indexInFactory, 'indexInFactory when registering multi factory destroy hook');\n                const existingCallbacksIndex = hooks.indexOf(contextIndex);\n                if (existingCallbacksIndex === -1) {\n                    hooks.push(contextIndex, [indexInFactory, ngOnDestroy]);\n                }\n                else {\n                    hooks[existingCallbacksIndex + 1].push(indexInFactory, ngOnDestroy);\n                }\n            }\n            else {\n                hooks.push(contextIndex, ngOnDestroy);\n            }\n        }\n    }\n}\n/**\n * Add a factory in a multi factory.\n * @returns Index at which the factory was inserted.\n */\nfunction multiFactoryAdd(multiFactory, factory, isComponentProvider) {\n    if (isComponentProvider) {\n        multiFactory.componentProviders++;\n    }\n    return multiFactory.multi.push(factory) - 1;\n}\n/**\n * Returns the index of item in the array, but only in the begin to end range.\n */\nfunction indexOf(item, arr, begin, end) {\n    for (let i = begin; i < end; i++) {\n        if (arr[i] === item)\n            return i;\n    }\n    return -1;\n}\n/**\n * Use this with `multi` `providers`.\n */\nfunction multiProvidersFactoryResolver(_, tData, lData, tNode) {\n    return multiResolve(this.multi, []);\n}\n/**\n * Use this with `multi` `viewProviders`.\n *\n * This factory knows how to concatenate itself with the existing `multi` `providers`.\n */\nfunction multiViewProvidersFactoryResolver(_, tData, lView, tNode) {\n    const factories = this.multi;\n    let result;\n    if (this.providerFactory) {\n        const componentCount = this.providerFactory.componentProviders;\n        const multiProviders = getNodeInjectable(lView, lView[TVIEW], this.providerFactory.index, tNode);\n        // Copy the section of the array which contains `multi` `providers` from the component\n        result = multiProviders.slice(0, componentCount);\n        // Insert the `viewProvider` instances.\n        multiResolve(factories, result);\n        // Copy the section of the array which contains `multi` `providers` from other directives\n        for (let i = componentCount; i < multiProviders.length; i++) {\n            result.push(multiProviders[i]);\n        }\n    }\n    else {\n        result = [];\n        // Insert the `viewProvider` instances.\n        multiResolve(factories, result);\n    }\n    return result;\n}\n/**\n * Maps an array of factories into an array of values.\n */\nfunction multiResolve(factories, result) {\n    for (let i = 0; i < factories.length; i++) {\n        const factory = factories[i];\n        result.push(factory());\n    }\n    return result;\n}\n/**\n * Creates a multi factory.\n */\nfunction multiFactory(factoryFn, index, isViewProvider, isComponent, f) {\n    const factory = new NodeInjectorFactory(factoryFn, isViewProvider, ɵɵdirectiveInject);\n    factory.multi = [];\n    factory.index = index;\n    factory.componentProviders = 0;\n    multiFactoryAdd(factory, f, isComponent && !isViewProvider);\n    return factory;\n}\n\n/**\n * This feature resolves the providers of a directive (or component),\n * and publish them into the DI system, making it visible to others for injection.\n *\n * For example:\n * ```ts\n * class ComponentWithProviders {\n *   constructor(private greeter: GreeterDE) {}\n *\n *   static ɵcmp = defineComponent({\n *     type: ComponentWithProviders,\n *     selectors: [['component-with-providers']],\n *    factory: () => new ComponentWithProviders(directiveInject(GreeterDE as any)),\n *    decls: 1,\n *    vars: 1,\n *    template: function(fs: RenderFlags, ctx: ComponentWithProviders) {\n *      if (fs & RenderFlags.Create) {\n *        ɵɵtext(0);\n *      }\n *      if (fs & RenderFlags.Update) {\n *        ɵɵtextInterpolate(ctx.greeter.greet());\n *      }\n *    },\n *    features: [ɵɵProvidersFeature([GreeterDE])]\n *  });\n * }\n * ```\n *\n * @param definition\n *\n * @codeGenApi\n */\nfunction ɵɵProvidersFeature(providers, viewProviders = []) {\n    return (definition) => {\n        definition.providersResolver =\n            (def, processProvidersFn) => {\n                return providersResolver(def, //\n                processProvidersFn ? processProvidersFn(providers) : providers, //\n                viewProviders);\n            };\n    };\n}\n\n/**\n * Represents an instance of an `NgModule` created by an `NgModuleFactory`.\n * Provides access to the `NgModule` instance and related objects.\n *\n * @publicApi\n */\nclass NgModuleRef$1 {\n}\n/**\n * @publicApi\n *\n * @deprecated\n * This class was mostly used as a part of ViewEngine-based JIT API and is no longer needed in Ivy\n * JIT mode. See [JIT API changes due to ViewEngine deprecation](guide/deprecations#jit-api-changes)\n * for additional context. Angular provides APIs that accept NgModule classes directly (such as\n * [PlatformRef.bootstrapModule](api/core/PlatformRef#bootstrapModule) and\n * [createNgModule](api/core/createNgModule)), consider switching to those APIs instead of\n * using factory-based ones.\n */\nclass NgModuleFactory$1 {\n}\n\n/**\n * Returns a new NgModuleRef instance based on the NgModule class and parent injector provided.\n *\n * @param ngModule NgModule class.\n * @param parentInjector Optional injector instance to use as a parent for the module injector. If\n *     not provided, `NullInjector` will be used instead.\n * @returns NgModuleRef that represents an NgModule instance.\n *\n * @publicApi\n */\nfunction createNgModule(ngModule, parentInjector) {\n    return new NgModuleRef(ngModule, parentInjector ?? null, []);\n}\n/**\n * The `createNgModule` function alias for backwards-compatibility.\n * Please avoid using it directly and use `createNgModule` instead.\n *\n * @deprecated Use `createNgModule` instead.\n */\nconst createNgModuleRef = createNgModule;\nclass NgModuleRef extends NgModuleRef$1 {\n    constructor(ngModuleType, _parent, additionalProviders) {\n        super();\n        this._parent = _parent;\n        // tslint:disable-next-line:require-internal-with-underscore\n        this._bootstrapComponents = [];\n        this.destroyCbs = [];\n        // When bootstrapping a module we have a dependency graph that looks like this:\n        // ApplicationRef -> ComponentFactoryResolver -> NgModuleRef. The problem is that if the\n        // module being resolved tries to inject the ComponentFactoryResolver, it'll create a\n        // circular dependency which will result in a runtime error, because the injector doesn't\n        // exist yet. We work around the issue by creating the ComponentFactoryResolver ourselves\n        // and providing it, rather than letting the injector resolve it.\n        this.componentFactoryResolver = new ComponentFactoryResolver(this);\n        const ngModuleDef = getNgModuleDef(ngModuleType);\n        ngDevMode &&\n            assertDefined(ngModuleDef, `NgModule '${stringify(ngModuleType)}' is not a subtype of 'NgModuleType'.`);\n        this._bootstrapComponents = maybeUnwrapFn(ngModuleDef.bootstrap);\n        this._r3Injector = createInjectorWithoutInjectorInstances(ngModuleType, _parent, [\n            { provide: NgModuleRef$1, useValue: this }, {\n                provide: ComponentFactoryResolver$1,\n                useValue: this.componentFactoryResolver\n            },\n            ...additionalProviders\n        ], stringify(ngModuleType), new Set(['environment']));\n        // We need to resolve the injector types separately from the injector creation, because\n        // the module might be trying to use this ref in its constructor for DI which will cause a\n        // circular error that will eventually error out, because the injector isn't created yet.\n        this._r3Injector.resolveInjectorInitializers();\n        this.instance = this._r3Injector.get(ngModuleType);\n    }\n    get injector() {\n        return this._r3Injector;\n    }\n    destroy() {\n        ngDevMode && assertDefined(this.destroyCbs, 'NgModule already destroyed');\n        const injector = this._r3Injector;\n        !injector.destroyed && injector.destroy();\n        this.destroyCbs.forEach(fn => fn());\n        this.destroyCbs = null;\n    }\n    onDestroy(callback) {\n        ngDevMode && assertDefined(this.destroyCbs, 'NgModule already destroyed');\n        this.destroyCbs.push(callback);\n    }\n}\nclass NgModuleFactory extends NgModuleFactory$1 {\n    constructor(moduleType) {\n        super();\n        this.moduleType = moduleType;\n    }\n    create(parentInjector) {\n        return new NgModuleRef(this.moduleType, parentInjector, []);\n    }\n}\nfunction createNgModuleRefWithProviders(moduleType, parentInjector, additionalProviders) {\n    return new NgModuleRef(moduleType, parentInjector, additionalProviders);\n}\nclass EnvironmentNgModuleRefAdapter extends NgModuleRef$1 {\n    constructor(config) {\n        super();\n        this.componentFactoryResolver = new ComponentFactoryResolver(this);\n        this.instance = null;\n        const injector = new R3Injector([\n            ...config.providers,\n            { provide: NgModuleRef$1, useValue: this },\n            { provide: ComponentFactoryResolver$1, useValue: this.componentFactoryResolver },\n        ], config.parent || getNullInjector(), config.debugName, new Set(['environment']));\n        this.injector = injector;\n        if (config.runEnvironmentInitializers) {\n            injector.resolveInjectorInitializers();\n        }\n    }\n    destroy() {\n        this.injector.destroy();\n    }\n    onDestroy(callback) {\n        this.injector.onDestroy(callback);\n    }\n}\n/**\n * Create a new environment injector.\n *\n * Learn more about environment injectors in\n * [this guide](guide/standalone-components#environment-injectors).\n *\n * @param providers An array of providers.\n * @param parent A parent environment injector.\n * @param debugName An optional name for this injector instance, which will be used in error\n *     messages.\n *\n * @publicApi\n */\nfunction createEnvironmentInjector(providers, parent, debugName = null) {\n    const adapter = new EnvironmentNgModuleRefAdapter({ providers, parent, debugName, runEnvironmentInitializers: true });\n    return adapter.injector;\n}\n\n/**\n * A service used by the framework to create instances of standalone injectors. Those injectors are\n * created on demand in case of dynamic component instantiation and contain ambient providers\n * collected from the imports graph rooted at a given standalone component.\n */\nclass StandaloneService {\n    constructor(_injector) {\n        this._injector = _injector;\n        this.cachedInjectors = new Map();\n    }\n    getOrCreateStandaloneInjector(componentDef) {\n        if (!componentDef.standalone) {\n            return null;\n        }\n        if (!this.cachedInjectors.has(componentDef)) {\n            const providers = internalImportProvidersFrom(false, componentDef.type);\n            const standaloneInjector = providers.length > 0 ?\n                createEnvironmentInjector([providers], this._injector, `Standalone[${componentDef.type.name}]`) :\n                null;\n            this.cachedInjectors.set(componentDef, standaloneInjector);\n        }\n        return this.cachedInjectors.get(componentDef);\n    }\n    ngOnDestroy() {\n        try {\n            for (const injector of this.cachedInjectors.values()) {\n                if (injector !== null) {\n                    injector.destroy();\n                }\n            }\n        }\n        finally {\n            this.cachedInjectors.clear();\n        }\n    }\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({\n        token: StandaloneService,\n        providedIn: 'environment',\n        factory: () => new StandaloneService(ɵɵinject(EnvironmentInjector)),\n    }); }\n}\n/**\n * A feature that acts as a setup code for the {@link StandaloneService}.\n *\n * The most important responsibility of this feature is to expose the \"getStandaloneInjector\"\n * function (an entry points to a standalone injector creation) on a component definition object. We\n * go through the features infrastructure to make sure that the standalone injector creation logic\n * is tree-shakable and not included in applications that don't use standalone components.\n *\n * @codeGenApi\n */\nfunction ɵɵStandaloneFeature(definition) {\n    definition.getStandaloneInjector = (parentInjector) => {\n        return parentInjector.get(StandaloneService).getOrCreateStandaloneInjector(definition);\n    };\n}\n\n/**\n * Retrieves the component instance associated with a given DOM element.\n *\n * @usageNotes\n * Given the following DOM structure:\n *\n * ```html\n * <app-root>\n *   <div>\n *     <child-comp></child-comp>\n *   </div>\n * </app-root>\n * ```\n *\n * Calling `getComponent` on `<child-comp>` will return the instance of `ChildComponent`\n * associated with this DOM element.\n *\n * Calling the function on `<app-root>` will return the `MyApp` instance.\n *\n *\n * @param element DOM element from which the component should be retrieved.\n * @returns Component instance associated with the element or `null` if there\n *    is no component associated with it.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getComponent(element) {\n    ngDevMode && assertDomElement(element);\n    const context = getLContext(element);\n    if (context === null)\n        return null;\n    if (context.component === undefined) {\n        const lView = context.lView;\n        if (lView === null) {\n            return null;\n        }\n        context.component = getComponentAtNodeIndex(context.nodeIndex, lView);\n    }\n    return context.component;\n}\n/**\n * If inside an embedded view (e.g. `*ngIf` or `*ngFor`), retrieves the context of the embedded\n * view that the element is part of. Otherwise retrieves the instance of the component whose view\n * owns the element (in this case, the result is the same as calling `getOwningComponent`).\n *\n * @param element Element for which to get the surrounding component instance.\n * @returns Instance of the component that is around the element or null if the element isn't\n *    inside any component.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getContext(element) {\n    assertDomElement(element);\n    const context = getLContext(element);\n    const lView = context ? context.lView : null;\n    return lView === null ? null : lView[CONTEXT];\n}\n/**\n * Retrieves the component instance whose view contains the DOM element.\n *\n * For example, if `<child-comp>` is used in the template of `<app-comp>`\n * (i.e. a `ViewChild` of `<app-comp>`), calling `getOwningComponent` on `<child-comp>`\n * would return `<app-comp>`.\n *\n * @param elementOrDir DOM element, component or directive instance\n *    for which to retrieve the root components.\n * @returns Component instance whose view owns the DOM element or null if the element is not\n *    part of a component view.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getOwningComponent(elementOrDir) {\n    const context = getLContext(elementOrDir);\n    let lView = context ? context.lView : null;\n    if (lView === null)\n        return null;\n    let parent;\n    while (lView[TVIEW].type === 2 /* TViewType.Embedded */ && (parent = getLViewParent(lView))) {\n        lView = parent;\n    }\n    return lView[FLAGS] & 512 /* LViewFlags.IsRoot */ ? null : lView[CONTEXT];\n}\n/**\n * Retrieves all root components associated with a DOM element, directive or component instance.\n * Root components are those which have been bootstrapped by Angular.\n *\n * @param elementOrDir DOM element, component or directive instance\n *    for which to retrieve the root components.\n * @returns Root components associated with the target object.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getRootComponents(elementOrDir) {\n    const lView = readPatchedLView(elementOrDir);\n    return lView !== null ? [getRootContext(lView)] : [];\n}\n/**\n * Retrieves an `Injector` associated with an element, component or directive instance.\n *\n * @param elementOrDir DOM element, component or directive instance for which to\n *    retrieve the injector.\n * @returns Injector associated with the element, component or directive instance.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getInjector(elementOrDir) {\n    const context = getLContext(elementOrDir);\n    const lView = context ? context.lView : null;\n    if (lView === null)\n        return Injector.NULL;\n    const tNode = lView[TVIEW].data[context.nodeIndex];\n    return new NodeInjector(tNode, lView);\n}\n/**\n * Retrieve a set of injection tokens at a given DOM node.\n *\n * @param element Element for which the injection tokens should be retrieved.\n */\nfunction getInjectionTokens(element) {\n    const context = getLContext(element);\n    const lView = context ? context.lView : null;\n    if (lView === null)\n        return [];\n    const tView = lView[TVIEW];\n    const tNode = tView.data[context.nodeIndex];\n    const providerTokens = [];\n    const startIndex = tNode.providerIndexes & 1048575 /* TNodeProviderIndexes.ProvidersStartIndexMask */;\n    const endIndex = tNode.directiveEnd;\n    for (let i = startIndex; i < endIndex; i++) {\n        let value = tView.data[i];\n        if (isDirectiveDefHack(value)) {\n            // The fact that we sometimes store Type and sometimes DirectiveDef in this location is a\n            // design flaw.  We should always store same type so that we can be monomorphic. The issue\n            // is that for Components/Directives we store the def instead the type. The correct behavior\n            // is that we should always be storing injectable type in this location.\n            value = value.type;\n        }\n        providerTokens.push(value);\n    }\n    return providerTokens;\n}\n/**\n * Retrieves directive instances associated with a given DOM node. Does not include\n * component instances.\n *\n * @usageNotes\n * Given the following DOM structure:\n *\n * ```html\n * <app-root>\n *   <button my-button></button>\n *   <my-comp></my-comp>\n * </app-root>\n * ```\n *\n * Calling `getDirectives` on `<button>` will return an array with an instance of the `MyButton`\n * directive that is associated with the DOM node.\n *\n * Calling `getDirectives` on `<my-comp>` will return an empty array.\n *\n * @param node DOM node for which to get the directives.\n * @returns Array of directives associated with the node.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getDirectives(node) {\n    // Skip text nodes because we can't have directives associated with them.\n    if (node instanceof Text) {\n        return [];\n    }\n    const context = getLContext(node);\n    const lView = context ? context.lView : null;\n    if (lView === null) {\n        return [];\n    }\n    const tView = lView[TVIEW];\n    const nodeIndex = context.nodeIndex;\n    if (!tView?.data[nodeIndex]) {\n        return [];\n    }\n    if (context.directives === undefined) {\n        context.directives = getDirectivesAtNodeIndex(nodeIndex, lView);\n    }\n    // The `directives` in this case are a named array called `LComponentView`. Clone the\n    // result so we don't expose an internal data structure in the user's console.\n    return context.directives === null ? [] : [...context.directives];\n}\n/**\n * Returns the debug (partial) metadata for a particular directive or component instance.\n * The function accepts an instance of a directive or component and returns the corresponding\n * metadata.\n *\n * @param directiveOrComponentInstance Instance of a directive or component\n * @returns metadata of the passed directive or component\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getDirectiveMetadata$1(directiveOrComponentInstance) {\n    const { constructor } = directiveOrComponentInstance;\n    if (!constructor) {\n        throw new Error('Unable to find the instance constructor');\n    }\n    // In case a component inherits from a directive, we may have component and directive metadata\n    // To ensure we don't get the metadata of the directive, we want to call `getComponentDef` first.\n    const componentDef = getComponentDef(constructor);\n    if (componentDef) {\n        return {\n            inputs: componentDef.inputs,\n            outputs: componentDef.outputs,\n            encapsulation: componentDef.encapsulation,\n            changeDetection: componentDef.onPush ? ChangeDetectionStrategy.OnPush :\n                ChangeDetectionStrategy.Default\n        };\n    }\n    const directiveDef = getDirectiveDef(constructor);\n    if (directiveDef) {\n        return { inputs: directiveDef.inputs, outputs: directiveDef.outputs };\n    }\n    return null;\n}\n/**\n * Retrieve map of local references.\n *\n * The references are retrieved as a map of local reference name to element or directive instance.\n *\n * @param target DOM element, component or directive instance for which to retrieve\n *    the local references.\n */\nfunction getLocalRefs(target) {\n    const context = getLContext(target);\n    if (context === null)\n        return {};\n    if (context.localRefs === undefined) {\n        const lView = context.lView;\n        if (lView === null) {\n            return {};\n        }\n        context.localRefs = discoverLocalRefs(lView, context.nodeIndex);\n    }\n    return context.localRefs || {};\n}\n/**\n * Retrieves the host element of a component or directive instance.\n * The host element is the DOM element that matched the selector of the directive.\n *\n * @param componentOrDirective Component or directive instance for which the host\n *     element should be retrieved.\n * @returns Host element of the target.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getHostElement(componentOrDirective) {\n    return getLContext(componentOrDirective).native;\n}\n/**\n * Retrieves the rendered text for a given component.\n *\n * This function retrieves the host element of a component and\n * and then returns the `textContent` for that element. This implies\n * that the text returned will include re-projected content of\n * the component as well.\n *\n * @param component The component to return the content text for.\n */\nfunction getRenderedText(component) {\n    const hostElement = getHostElement(component);\n    return hostElement.textContent || '';\n}\n/**\n * Retrieves a list of event listeners associated with a DOM element. The list does include host\n * listeners, but it does not include event listeners defined outside of the Angular context\n * (e.g. through `addEventListener`).\n *\n * @usageNotes\n * Given the following DOM structure:\n *\n * ```html\n * <app-root>\n *   <div (click)=\"doSomething()\"></div>\n * </app-root>\n * ```\n *\n * Calling `getListeners` on `<div>` will return an object that looks as follows:\n *\n * ```ts\n * {\n *   name: 'click',\n *   element: <div>,\n *   callback: () => doSomething(),\n *   useCapture: false\n * }\n * ```\n *\n * @param element Element for which the DOM listeners should be retrieved.\n * @returns Array of event listeners on the DOM element.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction getListeners(element) {\n    ngDevMode && assertDomElement(element);\n    const lContext = getLContext(element);\n    const lView = lContext === null ? null : lContext.lView;\n    if (lView === null)\n        return [];\n    const tView = lView[TVIEW];\n    const lCleanup = lView[CLEANUP];\n    const tCleanup = tView.cleanup;\n    const listeners = [];\n    if (tCleanup && lCleanup) {\n        for (let i = 0; i < tCleanup.length;) {\n            const firstParam = tCleanup[i++];\n            const secondParam = tCleanup[i++];\n            if (typeof firstParam === 'string') {\n                const name = firstParam;\n                const listenerElement = unwrapRNode(lView[secondParam]);\n                const callback = lCleanup[tCleanup[i++]];\n                const useCaptureOrIndx = tCleanup[i++];\n                // if useCaptureOrIndx is boolean then report it as is.\n                // if useCaptureOrIndx is positive number then it in unsubscribe method\n                // if useCaptureOrIndx is negative number then it is a Subscription\n                const type = (typeof useCaptureOrIndx === 'boolean' || useCaptureOrIndx >= 0) ? 'dom' : 'output';\n                const useCapture = typeof useCaptureOrIndx === 'boolean' ? useCaptureOrIndx : false;\n                if (element == listenerElement) {\n                    listeners.push({ element, name, callback, useCapture, type });\n                }\n            }\n        }\n    }\n    listeners.sort(sortListeners);\n    return listeners;\n}\nfunction sortListeners(a, b) {\n    if (a.name == b.name)\n        return 0;\n    return a.name < b.name ? -1 : 1;\n}\n/**\n * This function should not exist because it is megamorphic and only mostly correct.\n *\n * See call site for more info.\n */\nfunction isDirectiveDefHack(obj) {\n    return obj.type !== undefined && obj.declaredInputs !== undefined &&\n        obj.findHostDirectiveDefs !== undefined;\n}\n/**\n * Retrieve the component `LView` from component/element.\n *\n * NOTE: `LView` is a private and should not be leaked outside.\n *       Don't export this method to `ng.*` on window.\n *\n * @param target DOM element or component instance for which to retrieve the LView.\n */\nfunction getComponentLView(target) {\n    const lContext = getLContext(target);\n    const nodeIndx = lContext.nodeIndex;\n    const lView = lContext.lView;\n    ngDevMode && assertLView(lView);\n    const componentLView = lView[nodeIndx];\n    ngDevMode && assertLView(componentLView);\n    return componentLView;\n}\n/** Asserts that a value is a DOM Element. */\nfunction assertDomElement(value) {\n    if (typeof Element !== 'undefined' && !(value instanceof Element)) {\n        throw new Error('Expecting instance of DOM Element');\n    }\n}\n\n/**\n * Adds decorator, constructor, and property metadata to a given type via static metadata fields\n * on the type.\n *\n * These metadata fields can later be read with Angular's `ReflectionCapabilities` API.\n *\n * Calls to `setClassMetadata` can be guarded by ngDevMode, resulting in the metadata assignments\n * being tree-shaken away during production builds.\n */\nfunction setClassMetadata(type, decorators, ctorParameters, propDecorators) {\n    return noSideEffects(() => {\n        const clazz = type;\n        if (decorators !== null) {\n            if (clazz.hasOwnProperty('decorators') && clazz.decorators !== undefined) {\n                clazz.decorators.push(...decorators);\n            }\n            else {\n                clazz.decorators = decorators;\n            }\n        }\n        if (ctorParameters !== null) {\n            // Rather than merging, clobber the existing parameters. If other projects exist which\n            // use tsickle-style annotations and reflect over them in the same way, this could\n            // cause issues, but that is vanishingly unlikely.\n            clazz.ctorParameters = ctorParameters;\n        }\n        if (propDecorators !== null) {\n            // The property decorator objects are merged as it is possible different fields have\n            // different decorator types. Decorators on individual fields are not merged, as it's\n            // also incredibly unlikely that a field will be decorated both with an Angular\n            // decorator and a non-Angular decorator that's also been downleveled.\n            if (clazz.hasOwnProperty('propDecorators') && clazz.propDecorators !== undefined) {\n                clazz.propDecorators = { ...clazz.propDecorators, ...propDecorators };\n            }\n            else {\n                clazz.propDecorators = propDecorators;\n            }\n        }\n    });\n}\n\n/**\n * Bindings for pure functions are stored after regular bindings.\n *\n * |-------decls------|---------vars---------|                 |----- hostVars (dir1) ------|\n * ------------------------------------------------------------------------------------------\n * | nodes/refs/pipes | bindings | fn slots  | injector | dir1 | host bindings | host slots |\n * ------------------------------------------------------------------------------------------\n *                    ^                      ^\n *      TView.bindingStartIndex      TView.expandoStartIndex\n *\n * Pure function instructions are given an offset from the binding root. Adding the offset to the\n * binding root gives the first index where the bindings are stored. In component views, the binding\n * root is the bindingStartIndex. In host bindings, the binding root is the expandoStartIndex +\n * any directive instances + any hostVars in directives evaluated before it.\n *\n * See VIEW_DATA.md for more information about host binding resolution.\n */\n/**\n * If the value hasn't been saved, calls the pure function to store and return the\n * value. If it has been saved, returns the saved value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn Function that returns a value\n * @param thisArg Optional calling context of pureFn\n * @returns value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction0(slotOffset, pureFn, thisArg) {\n    const bindingIndex = getBindingRoot() + slotOffset;\n    const lView = getLView();\n    return lView[bindingIndex] === NO_CHANGE ?\n        updateBinding(lView, bindingIndex, thisArg ? pureFn.call(thisArg) : pureFn()) :\n        getBinding(lView, bindingIndex);\n}\n/**\n * If the value of the provided exp has changed, calls the pure function to return\n * an updated value. Or if the value has not changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn Function that returns an updated value\n * @param exp Updated expression value\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction1(slotOffset, pureFn, exp, thisArg) {\n    return pureFunction1Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction2(slotOffset, pureFn, exp1, exp2, thisArg) {\n    return pureFunction2Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp1, exp2, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction3(slotOffset, pureFn, exp1, exp2, exp3, thisArg) {\n    return pureFunction3Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp1, exp2, exp3, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param exp4\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction4(slotOffset, pureFn, exp1, exp2, exp3, exp4, thisArg) {\n    return pureFunction4Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp1, exp2, exp3, exp4, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param exp4\n * @param exp5\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction5(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, thisArg) {\n    const bindingIndex = getBindingRoot() + slotOffset;\n    const lView = getLView();\n    const different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated(lView, bindingIndex + 4, exp5) || different ?\n        updateBinding(lView, bindingIndex + 5, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5) :\n            pureFn(exp1, exp2, exp3, exp4, exp5)) :\n        getBinding(lView, bindingIndex + 5);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param exp4\n * @param exp5\n * @param exp6\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction6(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, exp6, thisArg) {\n    const bindingIndex = getBindingRoot() + slotOffset;\n    const lView = getLView();\n    const different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated2(lView, bindingIndex + 4, exp5, exp6) || different ?\n        updateBinding(lView, bindingIndex + 6, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6) :\n            pureFn(exp1, exp2, exp3, exp4, exp5, exp6)) :\n        getBinding(lView, bindingIndex + 6);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param exp4\n * @param exp5\n * @param exp6\n * @param exp7\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction7(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, exp6, exp7, thisArg) {\n    const bindingIndex = getBindingRoot() + slotOffset;\n    const lView = getLView();\n    let different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated3(lView, bindingIndex + 4, exp5, exp6, exp7) || different ?\n        updateBinding(lView, bindingIndex + 7, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6, exp7) :\n            pureFn(exp1, exp2, exp3, exp4, exp5, exp6, exp7)) :\n        getBinding(lView, bindingIndex + 7);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param exp4\n * @param exp5\n * @param exp6\n * @param exp7\n * @param exp8\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunction8(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8, thisArg) {\n    const bindingIndex = getBindingRoot() + slotOffset;\n    const lView = getLView();\n    const different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated4(lView, bindingIndex + 4, exp5, exp6, exp7, exp8) || different ?\n        updateBinding(lView, bindingIndex + 8, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8) :\n            pureFn(exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8)) :\n        getBinding(lView, bindingIndex + 8);\n}\n/**\n * pureFunction instruction that can support any number of bindings.\n *\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn A pure function that takes binding values and builds an object or array\n * containing those values.\n * @param exps An array of binding values\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n * @codeGenApi\n */\nfunction ɵɵpureFunctionV(slotOffset, pureFn, exps, thisArg) {\n    return pureFunctionVInternal(getLView(), getBindingRoot(), slotOffset, pureFn, exps, thisArg);\n}\n/**\n * Results of a pure function invocation are stored in LView in a dedicated slot that is initialized\n * to NO_CHANGE. In rare situations a pure pipe might throw an exception on the very first\n * invocation and not produce any valid results. In this case LView would keep holding the NO_CHANGE\n * value. The NO_CHANGE is not something that we can use in expressions / bindings thus we convert\n * it to `undefined`.\n */\nfunction getPureFunctionReturnValue(lView, returnValueIndex) {\n    ngDevMode && assertIndexInRange(lView, returnValueIndex);\n    const lastReturnValue = lView[returnValueIndex];\n    return lastReturnValue === NO_CHANGE ? undefined : lastReturnValue;\n}\n/**\n * If the value of the provided exp has changed, calls the pure function to return\n * an updated value. Or if the value has not changed, returns cached value.\n *\n * @param lView LView in which the function is being executed.\n * @param bindingRoot Binding root index.\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn Function that returns an updated value\n * @param exp Updated expression value\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n */\nfunction pureFunction1Internal(lView, bindingRoot, slotOffset, pureFn, exp, thisArg) {\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated(lView, bindingIndex, exp) ?\n        updateBinding(lView, bindingIndex + 1, thisArg ? pureFn.call(thisArg, exp) : pureFn(exp)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 1);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param lView LView in which the function is being executed.\n * @param bindingRoot Binding root index.\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n */\nfunction pureFunction2Internal(lView, bindingRoot, slotOffset, pureFn, exp1, exp2, thisArg) {\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated2(lView, bindingIndex, exp1, exp2) ?\n        updateBinding(lView, bindingIndex + 2, thisArg ? pureFn.call(thisArg, exp1, exp2) : pureFn(exp1, exp2)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 2);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param lView LView in which the function is being executed.\n * @param bindingRoot Binding root index.\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n */\nfunction pureFunction3Internal(lView, bindingRoot, slotOffset, pureFn, exp1, exp2, exp3, thisArg) {\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated3(lView, bindingIndex, exp1, exp2, exp3) ?\n        updateBinding(lView, bindingIndex + 3, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3) : pureFn(exp1, exp2, exp3)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 3);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param lView LView in which the function is being executed.\n * @param bindingRoot Binding root index.\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn\n * @param exp1\n * @param exp2\n * @param exp3\n * @param exp4\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n *\n */\nfunction pureFunction4Internal(lView, bindingRoot, slotOffset, pureFn, exp1, exp2, exp3, exp4, thisArg) {\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4) ?\n        updateBinding(lView, bindingIndex + 4, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4) : pureFn(exp1, exp2, exp3, exp4)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 4);\n}\n/**\n * pureFunction instruction that can support any number of bindings.\n *\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param lView LView in which the function is being executed.\n * @param bindingRoot Binding root index.\n * @param slotOffset the offset from binding root to the reserved slot\n * @param pureFn A pure function that takes binding values and builds an object or array\n * containing those values.\n * @param exps An array of binding values\n * @param thisArg Optional calling context of pureFn\n * @returns Updated or cached value\n */\nfunction pureFunctionVInternal(lView, bindingRoot, slotOffset, pureFn, exps, thisArg) {\n    let bindingIndex = bindingRoot + slotOffset;\n    let different = false;\n    for (let i = 0; i < exps.length; i++) {\n        bindingUpdated(lView, bindingIndex++, exps[i]) && (different = true);\n    }\n    return different ? updateBinding(lView, bindingIndex, pureFn.apply(thisArg, exps)) :\n        getPureFunctionReturnValue(lView, bindingIndex);\n}\n\n/**\n * Create a pipe.\n *\n * @param index Pipe index where the pipe will be stored.\n * @param pipeName The name of the pipe\n * @returns T the instance of the pipe.\n *\n * @codeGenApi\n */\nfunction ɵɵpipe(index, pipeName) {\n    const tView = getTView();\n    let pipeDef;\n    const adjustedIndex = index + HEADER_OFFSET;\n    if (tView.firstCreatePass) {\n        // The `getPipeDef` throws if a pipe with a given name is not found\n        // (so we use non-null assertion below).\n        pipeDef = getPipeDef(pipeName, tView.pipeRegistry);\n        tView.data[adjustedIndex] = pipeDef;\n        if (pipeDef.onDestroy) {\n            (tView.destroyHooks ??= []).push(adjustedIndex, pipeDef.onDestroy);\n        }\n    }\n    else {\n        pipeDef = tView.data[adjustedIndex];\n    }\n    const pipeFactory = pipeDef.factory || (pipeDef.factory = getFactoryDef(pipeDef.type, true));\n    let previousInjectorProfilerContext;\n    if (ngDevMode) {\n        previousInjectorProfilerContext = setInjectorProfilerContext({\n            injector: new NodeInjector(getCurrentTNode(), getLView()),\n            token: pipeDef.type\n        });\n    }\n    const previousInjectImplementation = setInjectImplementation(ɵɵdirectiveInject);\n    try {\n        // DI for pipes is supposed to behave like directives when placed on a component\n        // host node, which means that we have to disable access to `viewProviders`.\n        const previousIncludeViewProviders = setIncludeViewProviders(false);\n        const pipeInstance = pipeFactory();\n        setIncludeViewProviders(previousIncludeViewProviders);\n        store(tView, getLView(), adjustedIndex, pipeInstance);\n        return pipeInstance;\n    }\n    finally {\n        // we have to restore the injector implementation in finally, just in case the creation of the\n        // pipe throws an error.\n        setInjectImplementation(previousInjectImplementation);\n        ngDevMode && setInjectorProfilerContext(previousInjectorProfilerContext);\n    }\n}\n/**\n * Searches the pipe registry for a pipe with the given name. If one is found,\n * returns the pipe. Otherwise, an error is thrown because the pipe cannot be resolved.\n *\n * @param name Name of pipe to resolve\n * @param registry Full list of available pipes\n * @returns Matching PipeDef\n */\nfunction getPipeDef(name, registry) {\n    if (registry) {\n        if (ngDevMode) {\n            const pipes = registry.filter(pipe => pipe.name === name);\n            // TODO: Throw an error in the next major\n            if (pipes.length > 1) {\n                console.warn(formatRuntimeError(313 /* RuntimeErrorCode.MULTIPLE_MATCHING_PIPES */, getMultipleMatchingPipesMessage(name)));\n            }\n        }\n        for (let i = registry.length - 1; i >= 0; i--) {\n            const pipeDef = registry[i];\n            if (name === pipeDef.name) {\n                return pipeDef;\n            }\n        }\n    }\n    if (ngDevMode) {\n        throw new RuntimeError(-302 /* RuntimeErrorCode.PIPE_NOT_FOUND */, getPipeNotFoundErrorMessage(name));\n    }\n}\n/**\n * Generates a helpful error message for the user when multiple pipes match the name.\n *\n * @param name Name of the pipe\n * @returns The error message\n */\nfunction getMultipleMatchingPipesMessage(name) {\n    const lView = getLView();\n    const declarationLView = lView[DECLARATION_COMPONENT_VIEW];\n    const context = declarationLView[CONTEXT];\n    const hostIsStandalone = isHostComponentStandalone(lView);\n    const componentInfoMessage = context ? ` in the '${context.constructor.name}' component` : '';\n    const verifyMessage = `check ${hostIsStandalone ? '\\'@Component.imports\\' of this component' :\n        'the imports of this module'}`;\n    const errorMessage = `Multiple pipes match the name \\`${name}\\`${componentInfoMessage}. ${verifyMessage}`;\n    return errorMessage;\n}\n/**\n * Generates a helpful error message for the user when a pipe is not found.\n *\n * @param name Name of the missing pipe\n * @returns The error message\n */\nfunction getPipeNotFoundErrorMessage(name) {\n    const lView = getLView();\n    const declarationLView = lView[DECLARATION_COMPONENT_VIEW];\n    const context = declarationLView[CONTEXT];\n    const hostIsStandalone = isHostComponentStandalone(lView);\n    const componentInfoMessage = context ? ` in the '${context.constructor.name}' component` : '';\n    const verifyMessage = `Verify that it is ${hostIsStandalone ? 'included in the \\'@Component.imports\\' of this component' :\n        'declared or imported in this module'}`;\n    const errorMessage = `The pipe '${name}' could not be found${componentInfoMessage}. ${verifyMessage}`;\n    return errorMessage;\n}\n/**\n * Invokes a pipe with 1 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nfunction ɵɵpipeBind1(index, slotOffset, v1) {\n    const adjustedIndex = index + HEADER_OFFSET;\n    const lView = getLView();\n    const pipeInstance = load(lView, adjustedIndex);\n    return isPure(lView, adjustedIndex) ?\n        pureFunction1Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, pipeInstance) :\n        pipeInstance.transform(v1);\n}\n/**\n * Invokes a pipe with 2 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n * @param v2 2nd argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nfunction ɵɵpipeBind2(index, slotOffset, v1, v2) {\n    const adjustedIndex = index + HEADER_OFFSET;\n    const lView = getLView();\n    const pipeInstance = load(lView, adjustedIndex);\n    return isPure(lView, adjustedIndex) ?\n        pureFunction2Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, v2, pipeInstance) :\n        pipeInstance.transform(v1, v2);\n}\n/**\n * Invokes a pipe with 3 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n * @param v2 2nd argument to {@link PipeTransform#transform}.\n * @param v3 4rd argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nfunction ɵɵpipeBind3(index, slotOffset, v1, v2, v3) {\n    const adjustedIndex = index + HEADER_OFFSET;\n    const lView = getLView();\n    const pipeInstance = load(lView, adjustedIndex);\n    return isPure(lView, adjustedIndex) ?\n        pureFunction3Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, v2, v3, pipeInstance) :\n        pipeInstance.transform(v1, v2, v3);\n}\n/**\n * Invokes a pipe with 4 arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param v1 1st argument to {@link PipeTransform#transform}.\n * @param v2 2nd argument to {@link PipeTransform#transform}.\n * @param v3 3rd argument to {@link PipeTransform#transform}.\n * @param v4 4th argument to {@link PipeTransform#transform}.\n *\n * @codeGenApi\n */\nfunction ɵɵpipeBind4(index, slotOffset, v1, v2, v3, v4) {\n    const adjustedIndex = index + HEADER_OFFSET;\n    const lView = getLView();\n    const pipeInstance = load(lView, adjustedIndex);\n    return isPure(lView, adjustedIndex) ? pureFunction4Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, v2, v3, v4, pipeInstance) :\n        pipeInstance.transform(v1, v2, v3, v4);\n}\n/**\n * Invokes a pipe with variable number of arguments.\n *\n * This instruction acts as a guard to {@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * @param index Pipe index where the pipe was stored on creation.\n * @param slotOffset the offset in the reserved slot space\n * @param values Array of arguments to pass to {@link PipeTransform#transform} method.\n *\n * @codeGenApi\n */\nfunction ɵɵpipeBindV(index, slotOffset, values) {\n    const adjustedIndex = index + HEADER_OFFSET;\n    const lView = getLView();\n    const pipeInstance = load(lView, adjustedIndex);\n    return isPure(lView, adjustedIndex) ?\n        pureFunctionVInternal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, values, pipeInstance) :\n        pipeInstance.transform.apply(pipeInstance, values);\n}\nfunction isPure(lView, index) {\n    return lView[TVIEW].data[index].pure;\n}\n\nfunction symbolIterator() {\n    // @ts-expect-error accessing a private member\n    return this._results[Symbol.iterator]();\n}\n/**\n * An unmodifiable list of items that Angular keeps up to date when the state\n * of the application changes.\n *\n * The type of object that {@link ViewChildren}, {@link ContentChildren}, and {@link QueryList}\n * provide.\n *\n * Implements an iterable interface, therefore it can be used in both ES6\n * javascript `for (var i of items)` loops as well as in Angular templates with\n * `*ngFor=\"let i of myList\"`.\n *\n * Changes can be observed by subscribing to the changes `Observable`.\n *\n * NOTE: In the future this class will implement an `Observable` interface.\n *\n * @usageNotes\n * ### Example\n * ```typescript\n * @Component({...})\n * class Container {\n *   @ViewChildren(Item) items:QueryList<Item>;\n * }\n * ```\n *\n * @publicApi\n */\nclass QueryList {\n    static { Symbol.iterator; }\n    /**\n     * Returns `Observable` of `QueryList` notifying the subscriber of changes.\n     */\n    get changes() {\n        return this._changes || (this._changes = new EventEmitter());\n    }\n    /**\n     * @param emitDistinctChangesOnly Whether `QueryList.changes` should fire only when actual change\n     *     has occurred. Or if it should fire when query is recomputed. (recomputing could resolve in\n     *     the same result)\n     */\n    constructor(_emitDistinctChangesOnly = false) {\n        this._emitDistinctChangesOnly = _emitDistinctChangesOnly;\n        this.dirty = true;\n        this._results = [];\n        this._changesDetected = false;\n        this._changes = null;\n        this.length = 0;\n        this.first = undefined;\n        this.last = undefined;\n        // This function should be declared on the prototype, but doing so there will cause the class\n        // declaration to have side-effects and become not tree-shakable. For this reason we do it in\n        // the constructor.\n        // [Symbol.iterator](): Iterator<T> { ... }\n        const proto = QueryList.prototype;\n        if (!proto[Symbol.iterator])\n            proto[Symbol.iterator] = symbolIterator;\n    }\n    /**\n     * Returns the QueryList entry at `index`.\n     */\n    get(index) {\n        return this._results[index];\n    }\n    /**\n     * See\n     * [Array.map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map)\n     */\n    map(fn) {\n        return this._results.map(fn);\n    }\n    filter(fn) {\n        return this._results.filter(fn);\n    }\n    /**\n     * See\n     * [Array.find](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find)\n     */\n    find(fn) {\n        return this._results.find(fn);\n    }\n    /**\n     * See\n     * [Array.reduce](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce)\n     */\n    reduce(fn, init) {\n        return this._results.reduce(fn, init);\n    }\n    /**\n     * See\n     * [Array.forEach](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach)\n     */\n    forEach(fn) {\n        this._results.forEach(fn);\n    }\n    /**\n     * See\n     * [Array.some](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some)\n     */\n    some(fn) {\n        return this._results.some(fn);\n    }\n    /**\n     * Returns a copy of the internal results list as an Array.\n     */\n    toArray() {\n        return this._results.slice();\n    }\n    toString() {\n        return this._results.toString();\n    }\n    /**\n     * Updates the stored data of the query list, and resets the `dirty` flag to `false`, so that\n     * on change detection, it will not notify of changes to the queries, unless a new change\n     * occurs.\n     *\n     * @param resultsTree The query results to store\n     * @param identityAccessor Optional function for extracting stable object identity from a value\n     *    in the array. This function is executed for each element of the query result list while\n     *    comparing current query list with the new one (provided as a first argument of the `reset`\n     *    function) to detect if the lists are different. If the function is not provided, elements\n     *    are compared as is (without any pre-processing).\n     */\n    reset(resultsTree, identityAccessor) {\n        // Cast to `QueryListInternal` so that we can mutate fields which are readonly for the usage of\n        // QueryList (but not for QueryList itself.)\n        const self = this;\n        self.dirty = false;\n        const newResultFlat = flatten(resultsTree);\n        if (this._changesDetected = !arrayEquals(self._results, newResultFlat, identityAccessor)) {\n            self._results = newResultFlat;\n            self.length = newResultFlat.length;\n            self.last = newResultFlat[this.length - 1];\n            self.first = newResultFlat[0];\n        }\n    }\n    /**\n     * Triggers a change event by emitting on the `changes` {@link EventEmitter}.\n     */\n    notifyOnChanges() {\n        if (this._changes && (this._changesDetected || !this._emitDistinctChangesOnly))\n            this._changes.emit(this);\n    }\n    /** internal */\n    setDirty() {\n        this.dirty = true;\n    }\n    /** internal */\n    destroy() {\n        this.changes.complete();\n        this.changes.unsubscribe();\n    }\n}\n\nfunction createAndRenderEmbeddedLView(declarationLView, templateTNode, context, options) {\n    const embeddedTView = templateTNode.tView;\n    ngDevMode && assertDefined(embeddedTView, 'TView must be defined for a template node.');\n    ngDevMode && assertTNodeForLView(templateTNode, declarationLView);\n    // Embedded views follow the change detection strategy of the view they're declared in.\n    const isSignalView = declarationLView[FLAGS] & 4096 /* LViewFlags.SignalView */;\n    const viewFlags = isSignalView ? 4096 /* LViewFlags.SignalView */ : 16 /* LViewFlags.CheckAlways */;\n    const embeddedLView = createLView(declarationLView, embeddedTView, context, viewFlags, null, templateTNode, null, null, null, options?.injector ?? null, options?.hydrationInfo ?? null);\n    const declarationLContainer = declarationLView[templateTNode.index];\n    ngDevMode && assertLContainer(declarationLContainer);\n    embeddedLView[DECLARATION_LCONTAINER] = declarationLContainer;\n    const declarationViewLQueries = declarationLView[QUERIES];\n    if (declarationViewLQueries !== null) {\n        embeddedLView[QUERIES] = declarationViewLQueries.createEmbeddedView(embeddedTView);\n    }\n    // execute creation mode of a view\n    renderView(embeddedTView, embeddedLView, context);\n    return embeddedLView;\n}\nfunction getLViewFromLContainer(lContainer, index) {\n    const adjustedIndex = CONTAINER_HEADER_OFFSET + index;\n    // avoid reading past the array boundaries\n    if (adjustedIndex < lContainer.length) {\n        const lView = lContainer[adjustedIndex];\n        ngDevMode && assertLView(lView);\n        return lView;\n    }\n    return undefined;\n}\nfunction addLViewToLContainer(lContainer, lView, index, addToDOM = true) {\n    const tView = lView[TVIEW];\n    // insert to the view tree so the new view can be change-detected\n    insertView(tView, lView, lContainer, index);\n    // insert to the view to the DOM tree\n    if (addToDOM) {\n        const beforeNode = getBeforeNodeForView(index, lContainer);\n        const renderer = lView[RENDERER];\n        const parentRNode = nativeParentNode(renderer, lContainer[NATIVE]);\n        if (parentRNode !== null) {\n            addViewToDOM(tView, lContainer[T_HOST], renderer, lView, parentRNode, beforeNode);\n        }\n    }\n}\nfunction removeLViewFromLContainer(lContainer, index) {\n    const lView = detachView(lContainer, index);\n    if (lView !== undefined) {\n        destroyLView(lView[TVIEW], lView);\n    }\n    return lView;\n}\n\n/**\n * Represents an embedded template that can be used to instantiate embedded views.\n * To instantiate embedded views based on a template, use the `ViewContainerRef`\n * method `createEmbeddedView()`.\n *\n * Access a `TemplateRef` instance by placing a directive on an `<ng-template>`\n * element (or directive prefixed with `*`). The `TemplateRef` for the embedded view\n * is injected into the constructor of the directive,\n * using the `TemplateRef` token.\n *\n * You can also use a `Query` to find a `TemplateRef` associated with\n * a component or a directive.\n *\n * @see {@link ViewContainerRef}\n * @see [Navigate the Component Tree with DI](guide/dependency-injection-navtree)\n *\n * @publicApi\n */\nclass TemplateRef {\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ELEMENT_ID__ = injectTemplateRef; }\n}\nconst ViewEngineTemplateRef = TemplateRef;\n// TODO(alxhub): combine interface and implementation. Currently this is challenging since something\n// in g3 depends on them being separate.\nconst R3TemplateRef = class TemplateRef extends ViewEngineTemplateRef {\n    constructor(_declarationLView, _declarationTContainer, elementRef) {\n        super();\n        this._declarationLView = _declarationLView;\n        this._declarationTContainer = _declarationTContainer;\n        this.elementRef = elementRef;\n    }\n    /**\n     * Returns an `ssrId` associated with a TView, which was used to\n     * create this instance of the `TemplateRef`.\n     *\n     * @internal\n     */\n    get ssrId() {\n        return this._declarationTContainer.tView?.ssrId || null;\n    }\n    createEmbeddedView(context, injector) {\n        return this.createEmbeddedViewImpl(context, injector);\n    }\n    /**\n     * @internal\n     */\n    createEmbeddedViewImpl(context, injector, hydrationInfo) {\n        const embeddedLView = createAndRenderEmbeddedLView(this._declarationLView, this._declarationTContainer, context, { injector, hydrationInfo });\n        return new ViewRef$1(embeddedLView);\n    }\n};\n/**\n * Creates a TemplateRef given a node.\n *\n * @returns The TemplateRef instance to use\n */\nfunction injectTemplateRef() {\n    return createTemplateRef(getCurrentTNode(), getLView());\n}\n/**\n * Creates a TemplateRef and stores it on the injector.\n *\n * @param hostTNode The node on which a TemplateRef is requested\n * @param hostLView The `LView` to which the node belongs\n * @returns The TemplateRef instance or null if we can't create a TemplateRef on a given node type\n */\nfunction createTemplateRef(hostTNode, hostLView) {\n    if (hostTNode.type & 4 /* TNodeType.Container */) {\n        ngDevMode && assertDefined(hostTNode.tView, 'TView must be allocated');\n        return new R3TemplateRef(hostLView, hostTNode, createElementRef(hostTNode, hostLView));\n    }\n    return null;\n}\n\n/**\n * Removes all dehydrated views from a given LContainer:\n * both in internal data structure, as well as removing\n * corresponding DOM nodes that belong to that dehydrated view.\n */\nfunction removeDehydratedViews(lContainer) {\n    const views = lContainer[DEHYDRATED_VIEWS] ?? [];\n    const parentLView = lContainer[PARENT];\n    const renderer = parentLView[RENDERER];\n    for (const view of views) {\n        removeDehydratedView(view, renderer);\n        ngDevMode && ngDevMode.dehydratedViewsRemoved++;\n    }\n    // Reset the value to an empty array to indicate that no\n    // further processing of dehydrated views is needed for\n    // this view container (i.e. do not trigger the lookup process\n    // once again in case a `ViewContainerRef` is created later).\n    lContainer[DEHYDRATED_VIEWS] = EMPTY_ARRAY;\n}\n/**\n * Helper function to remove all nodes from a dehydrated view.\n */\nfunction removeDehydratedView(dehydratedView, renderer) {\n    let nodesRemoved = 0;\n    let currentRNode = dehydratedView.firstChild;\n    if (currentRNode) {\n        const numNodes = dehydratedView.data[NUM_ROOT_NODES];\n        while (nodesRemoved < numNodes) {\n            ngDevMode && validateSiblingNodeExists(currentRNode);\n            const nextSibling = currentRNode.nextSibling;\n            nativeRemoveNode(renderer, currentRNode, false);\n            currentRNode = nextSibling;\n            nodesRemoved++;\n        }\n    }\n}\n/**\n * Walks over all views within this LContainer invokes dehydrated views\n * cleanup function for each one.\n */\nfunction cleanupLContainer(lContainer) {\n    removeDehydratedViews(lContainer);\n    for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n        cleanupLView(lContainer[i]);\n    }\n}\n/**\n * Walks over `LContainer`s and components registered within\n * this LView and invokes dehydrated views cleanup function for each one.\n */\nfunction cleanupLView(lView) {\n    const tView = lView[TVIEW];\n    for (let i = HEADER_OFFSET; i < tView.bindingStartIndex; i++) {\n        if (isLContainer(lView[i])) {\n            const lContainer = lView[i];\n            cleanupLContainer(lContainer);\n        }\n        else if (Array.isArray(lView[i])) {\n            // This is a component, enter the `cleanupLView` recursively.\n            cleanupLView(lView[i]);\n        }\n    }\n}\n/**\n * Walks over all views registered within the ApplicationRef and removes\n * all dehydrated views from all `LContainer`s along the way.\n */\nfunction cleanupDehydratedViews(appRef) {\n    const viewRefs = appRef._views;\n    for (const viewRef of viewRefs) {\n        const lNode = getLNodeForHydration(viewRef);\n        // An `lView` might be `null` if a `ViewRef` represents\n        // an embedded view (not a component view).\n        if (lNode !== null && lNode[HOST] !== null) {\n            if (isLView(lNode)) {\n                cleanupLView(lNode);\n            }\n            else {\n                // Cleanup in the root component view\n                const componentLView = lNode[HOST];\n                cleanupLView(componentLView);\n                // Cleanup in all views within this view container\n                cleanupLContainer(lNode);\n            }\n            ngDevMode && ngDevMode.dehydratedViewsCleanupRuns++;\n        }\n    }\n}\n\n/**\n * Given a current DOM node and a serialized information about the views\n * in a container, walks over the DOM structure, collecting the list of\n * dehydrated views.\n */\nfunction locateDehydratedViewsInContainer(currentRNode, serializedViews) {\n    const dehydratedViews = [];\n    for (const serializedView of serializedViews) {\n        // Repeats a view multiple times as needed, based on the serialized information\n        // (for example, for *ngFor-produced views).\n        for (let i = 0; i < (serializedView[MULTIPLIER] ?? 1); i++) {\n            const view = {\n                data: serializedView,\n                firstChild: null,\n            };\n            if (serializedView[NUM_ROOT_NODES] > 0) {\n                // Keep reference to the first node in this view,\n                // so it can be accessed while invoking template instructions.\n                view.firstChild = currentRNode;\n                // Move over to the next node after this view, which can\n                // either be a first node of the next view or an anchor comment\n                // node after the last view in a container.\n                currentRNode = siblingAfter(serializedView[NUM_ROOT_NODES], currentRNode);\n            }\n            dehydratedViews.push(view);\n        }\n    }\n    return [currentRNode, dehydratedViews];\n}\n/**\n * Reference to a function that searches for a matching dehydrated views\n * stored on a given lContainer.\n * Returns `null` by default, when hydration is not enabled.\n */\nlet _findMatchingDehydratedViewImpl = (lContainer, template) => null;\n/**\n * Retrieves the next dehydrated view from the LContainer and verifies that\n * it matches a given template id (from the TView that was used to create this\n * instance of a view). If the id doesn't match, that means that we are in an\n * unexpected state and can not complete the reconciliation process. Thus,\n * all dehydrated views from this LContainer are removed (including corresponding\n * DOM nodes) and the rendering is performed as if there were no dehydrated views\n * in this container.\n */\nfunction findMatchingDehydratedViewImpl(lContainer, template) {\n    const views = lContainer[DEHYDRATED_VIEWS];\n    if (!template || views === null || views.length === 0) {\n        return null;\n    }\n    const view = views[0];\n    // Verify whether the first dehydrated view in the container matches\n    // the template id passed to this function (that originated from a TView\n    // that was used to create an instance of an embedded or component views.\n    if (view.data[TEMPLATE_ID] === template) {\n        // If the template id matches - extract the first view and return it.\n        return views.shift();\n    }\n    else {\n        // Otherwise, we are at the state when reconciliation can not be completed,\n        // thus we remove all dehydrated views within this container (remove them\n        // from internal data structures as well as delete associated elements from\n        // the DOM tree).\n        removeDehydratedViews(lContainer);\n        return null;\n    }\n}\nfunction enableFindMatchingDehydratedViewImpl() {\n    _findMatchingDehydratedViewImpl = findMatchingDehydratedViewImpl;\n}\nfunction findMatchingDehydratedView(lContainer, template) {\n    return _findMatchingDehydratedViewImpl(lContainer, template);\n}\n\n/**\n * Represents a container where one or more views can be attached to a component.\n *\n * Can contain *host views* (created by instantiating a\n * component with the `createComponent()` method), and *embedded views*\n * (created by instantiating a `TemplateRef` with the `createEmbeddedView()` method).\n *\n * A view container instance can contain other view containers,\n * creating a [view hierarchy](guide/glossary#view-hierarchy).\n *\n * @usageNotes\n *\n * The example below demonstrates how the `createComponent` function can be used\n * to create an instance of a ComponentRef dynamically and attach it to an ApplicationRef,\n * so that it gets included into change detection cycles.\n *\n * Note: the example uses standalone components, but the function can also be used for\n * non-standalone components (declared in an NgModule) as well.\n *\n * ```typescript\n * @Component({\n *   standalone: true,\n *   selector: 'dynamic',\n *   template: `<span>This is a content of a dynamic component.</span>`,\n * })\n * class DynamicComponent {\n *   vcr = inject(ViewContainerRef);\n * }\n *\n * @Component({\n *   standalone: true,\n *   selector: 'app',\n *   template: `<main>Hi! This is the main content.</main>`,\n * })\n * class AppComponent {\n *   vcr = inject(ViewContainerRef);\n *\n *   ngAfterViewInit() {\n *     const compRef = this.vcr.createComponent(DynamicComponent);\n *     compRef.changeDetectorRef.detectChanges();\n *   }\n * }\n * ```\n *\n * @see {@link ComponentRef}\n * @see {@link EmbeddedViewRef}\n *\n * @publicApi\n */\nclass ViewContainerRef {\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ELEMENT_ID__ = injectViewContainerRef; }\n}\n/**\n * Creates a ViewContainerRef and stores it on the injector. Or, if the ViewContainerRef\n * already exists, retrieves the existing ViewContainerRef.\n *\n * @returns The ViewContainerRef instance to use\n */\nfunction injectViewContainerRef() {\n    const previousTNode = getCurrentTNode();\n    return createContainerRef(previousTNode, getLView());\n}\nconst VE_ViewContainerRef = ViewContainerRef;\n// TODO(alxhub): cleaning up this indirection triggers a subtle bug in Closure in g3. Once the fix\n// for that lands, this can be cleaned up.\nconst R3ViewContainerRef = class ViewContainerRef extends VE_ViewContainerRef {\n    constructor(_lContainer, _hostTNode, _hostLView) {\n        super();\n        this._lContainer = _lContainer;\n        this._hostTNode = _hostTNode;\n        this._hostLView = _hostLView;\n    }\n    get element() {\n        return createElementRef(this._hostTNode, this._hostLView);\n    }\n    get injector() {\n        return new NodeInjector(this._hostTNode, this._hostLView);\n    }\n    /** @deprecated No replacement */\n    get parentInjector() {\n        const parentLocation = getParentInjectorLocation(this._hostTNode, this._hostLView);\n        if (hasParentInjector(parentLocation)) {\n            const parentView = getParentInjectorView(parentLocation, this._hostLView);\n            const injectorIndex = getParentInjectorIndex(parentLocation);\n            ngDevMode && assertNodeInjector(parentView, injectorIndex);\n            const parentTNode = parentView[TVIEW].data[injectorIndex + 8 /* NodeInjectorOffset.TNODE */];\n            return new NodeInjector(parentTNode, parentView);\n        }\n        else {\n            return new NodeInjector(null, this._hostLView);\n        }\n    }\n    clear() {\n        while (this.length > 0) {\n            this.remove(this.length - 1);\n        }\n    }\n    get(index) {\n        const viewRefs = getViewRefs(this._lContainer);\n        return viewRefs !== null && viewRefs[index] || null;\n    }\n    get length() {\n        return this._lContainer.length - CONTAINER_HEADER_OFFSET;\n    }\n    createEmbeddedView(templateRef, context, indexOrOptions) {\n        let index;\n        let injector;\n        if (typeof indexOrOptions === 'number') {\n            index = indexOrOptions;\n        }\n        else if (indexOrOptions != null) {\n            index = indexOrOptions.index;\n            injector = indexOrOptions.injector;\n        }\n        const hydrationInfo = findMatchingDehydratedView(this._lContainer, templateRef.ssrId);\n        const viewRef = templateRef.createEmbeddedViewImpl(context || {}, injector, hydrationInfo);\n        // If there is a matching dehydrated view, but the host TNode is located in the skip\n        // hydration block, this means that the content was detached (as a part of the skip\n        // hydration logic) and it needs to be appended into the DOM.\n        const skipDomInsertion = !!hydrationInfo && !hasInSkipHydrationBlockFlag(this._hostTNode);\n        this.insertImpl(viewRef, index, skipDomInsertion);\n        return viewRef;\n    }\n    createComponent(componentFactoryOrType, indexOrOptions, injector, projectableNodes, environmentInjector) {\n        const isComponentFactory = componentFactoryOrType && !isType(componentFactoryOrType);\n        let index;\n        // This function supports 2 signatures and we need to handle options correctly for both:\n        //   1. When first argument is a Component type. This signature also requires extra\n        //      options to be provided as object (more ergonomic option).\n        //   2. First argument is a Component factory. In this case extra options are represented as\n        //      positional arguments. This signature is less ergonomic and will be deprecated.\n        if (isComponentFactory) {\n            if (ngDevMode) {\n                assertEqual(typeof indexOrOptions !== 'object', true, 'It looks like Component factory was provided as the first argument ' +\n                    'and an options object as the second argument. This combination of arguments ' +\n                    'is incompatible. You can either change the first argument to provide Component ' +\n                    'type or change the second argument to be a number (representing an index at ' +\n                    'which to insert the new component\\'s host view into this container)');\n            }\n            index = indexOrOptions;\n        }\n        else {\n            if (ngDevMode) {\n                assertDefined(getComponentDef(componentFactoryOrType), `Provided Component class doesn't contain Component definition. ` +\n                    `Please check whether provided class has @Component decorator.`);\n                assertEqual(typeof indexOrOptions !== 'number', true, 'It looks like Component type was provided as the first argument ' +\n                    'and a number (representing an index at which to insert the new component\\'s ' +\n                    'host view into this container as the second argument. This combination of arguments ' +\n                    'is incompatible. Please use an object as the second argument instead.');\n            }\n            const options = (indexOrOptions || {});\n            if (ngDevMode && options.environmentInjector && options.ngModuleRef) {\n                throwError(`Cannot pass both environmentInjector and ngModuleRef options to createComponent().`);\n            }\n            index = options.index;\n            injector = options.injector;\n            projectableNodes = options.projectableNodes;\n            environmentInjector = options.environmentInjector || options.ngModuleRef;\n        }\n        const componentFactory = isComponentFactory ?\n            componentFactoryOrType :\n            new ComponentFactory(getComponentDef(componentFactoryOrType));\n        const contextInjector = injector || this.parentInjector;\n        // If an `NgModuleRef` is not provided explicitly, try retrieving it from the DI tree.\n        if (!environmentInjector && componentFactory.ngModule == null) {\n            // For the `ComponentFactory` case, entering this logic is very unlikely, since we expect that\n            // an instance of a `ComponentFactory`, resolved via `ComponentFactoryResolver` would have an\n            // `ngModule` field. This is possible in some test scenarios and potentially in some JIT-based\n            // use-cases. For the `ComponentFactory` case we preserve backwards-compatibility and try\n            // using a provided injector first, then fall back to the parent injector of this\n            // `ViewContainerRef` instance.\n            //\n            // For the factory-less case, it's critical to establish a connection with the module\n            // injector tree (by retrieving an instance of an `NgModuleRef` and accessing its injector),\n            // so that a component can use DI tokens provided in MgModules. For this reason, we can not\n            // rely on the provided injector, since it might be detached from the DI tree (for example, if\n            // it was created via `Injector.create` without specifying a parent injector, or if an\n            // injector is retrieved from an `NgModuleRef` created via `createNgModule` using an\n            // NgModule outside of a module tree). Instead, we always use `ViewContainerRef`'s parent\n            // injector, which is normally connected to the DI tree, which includes module injector\n            // subtree.\n            const _injector = isComponentFactory ? contextInjector : this.parentInjector;\n            // DO NOT REFACTOR. The code here used to have a `injector.get(NgModuleRef, null) ||\n            // undefined` expression which seems to cause internal google apps to fail. This is documented\n            // in the following internal bug issue: go/b/142967802\n            const result = _injector.get(EnvironmentInjector, null);\n            if (result) {\n                environmentInjector = result;\n            }\n        }\n        const componentDef = getComponentDef(componentFactory.componentType ?? {});\n        const dehydratedView = findMatchingDehydratedView(this._lContainer, componentDef?.id ?? null);\n        const rNode = dehydratedView?.firstChild ?? null;\n        const componentRef = componentFactory.create(contextInjector, projectableNodes, rNode, environmentInjector);\n        // If there is a matching dehydrated view, but the host TNode is located in the skip\n        // hydration block, this means that the content was detached (as a part of the skip\n        // hydration logic) and it needs to be appended into the DOM.\n        const skipDomInsertion = !!dehydratedView && !hasInSkipHydrationBlockFlag(this._hostTNode);\n        this.insertImpl(componentRef.hostView, index, skipDomInsertion);\n        return componentRef;\n    }\n    insert(viewRef, index) {\n        return this.insertImpl(viewRef, index, false);\n    }\n    insertImpl(viewRef, index, skipDomInsertion) {\n        const lView = viewRef._lView;\n        const tView = lView[TVIEW];\n        if (ngDevMode && viewRef.destroyed) {\n            throw new Error('Cannot insert a destroyed View in a ViewContainer!');\n        }\n        if (viewAttachedToContainer(lView)) {\n            // If view is already attached, detach it first so we clean up references appropriately.\n            const prevIdx = this.indexOf(viewRef);\n            // A view might be attached either to this or a different container. The `prevIdx` for\n            // those cases will be:\n            // equal to -1 for views attached to this ViewContainerRef\n            // >= 0 for views attached to a different ViewContainerRef\n            if (prevIdx !== -1) {\n                this.detach(prevIdx);\n            }\n            else {\n                const prevLContainer = lView[PARENT];\n                ngDevMode &&\n                    assertEqual(isLContainer(prevLContainer), true, 'An attached view should have its PARENT point to a container.');\n                // We need to re-create a R3ViewContainerRef instance since those are not stored on\n                // LView (nor anywhere else).\n                const prevVCRef = new R3ViewContainerRef(prevLContainer, prevLContainer[T_HOST], prevLContainer[PARENT]);\n                prevVCRef.detach(prevVCRef.indexOf(viewRef));\n            }\n        }\n        // Logical operation of adding `LView` to `LContainer`\n        const adjustedIdx = this._adjustIndex(index);\n        const lContainer = this._lContainer;\n        addLViewToLContainer(lContainer, lView, adjustedIdx, !skipDomInsertion);\n        viewRef.attachToViewContainerRef();\n        addToArray(getOrCreateViewRefs(lContainer), adjustedIdx, viewRef);\n        return viewRef;\n    }\n    move(viewRef, newIndex) {\n        if (ngDevMode && viewRef.destroyed) {\n            throw new Error('Cannot move a destroyed View in a ViewContainer!');\n        }\n        return this.insert(viewRef, newIndex);\n    }\n    indexOf(viewRef) {\n        const viewRefsArr = getViewRefs(this._lContainer);\n        return viewRefsArr !== null ? viewRefsArr.indexOf(viewRef) : -1;\n    }\n    remove(index) {\n        const adjustedIdx = this._adjustIndex(index, -1);\n        const detachedView = detachView(this._lContainer, adjustedIdx);\n        if (detachedView) {\n            // Before destroying the view, remove it from the container's array of `ViewRef`s.\n            // This ensures the view container length is updated before calling\n            // `destroyLView`, which could recursively call view container methods that\n            // rely on an accurate container length.\n            // (e.g. a method on this view container being called by a child directive's OnDestroy\n            // lifecycle hook)\n            removeFromArray(getOrCreateViewRefs(this._lContainer), adjustedIdx);\n            destroyLView(detachedView[TVIEW], detachedView);\n        }\n    }\n    detach(index) {\n        const adjustedIdx = this._adjustIndex(index, -1);\n        const view = detachView(this._lContainer, adjustedIdx);\n        const wasDetached = view && removeFromArray(getOrCreateViewRefs(this._lContainer), adjustedIdx) != null;\n        return wasDetached ? new ViewRef$1(view) : null;\n    }\n    _adjustIndex(index, shift = 0) {\n        if (index == null) {\n            return this.length + shift;\n        }\n        if (ngDevMode) {\n            assertGreaterThan(index, -1, `ViewRef index must be positive, got ${index}`);\n            // +1 because it's legal to insert at the end.\n            assertLessThan(index, this.length + 1 + shift, 'index');\n        }\n        return index;\n    }\n};\nfunction getViewRefs(lContainer) {\n    return lContainer[VIEW_REFS];\n}\nfunction getOrCreateViewRefs(lContainer) {\n    return (lContainer[VIEW_REFS] || (lContainer[VIEW_REFS] = []));\n}\n/**\n * Creates a ViewContainerRef and stores it on the injector.\n *\n * @param hostTNode The node that is requesting a ViewContainerRef\n * @param hostLView The view to which the node belongs\n * @returns The ViewContainerRef instance to use\n */\nfunction createContainerRef(hostTNode, hostLView) {\n    ngDevMode && assertTNodeType(hostTNode, 12 /* TNodeType.AnyContainer */ | 3 /* TNodeType.AnyRNode */);\n    let lContainer;\n    const slotValue = hostLView[hostTNode.index];\n    if (isLContainer(slotValue)) {\n        // If the host is a container, we don't need to create a new LContainer\n        lContainer = slotValue;\n    }\n    else {\n        // An LContainer anchor can not be `null`, but we set it here temporarily\n        // and update to the actual value later in this function (see\n        // `_locateOrCreateAnchorNode`).\n        lContainer = createLContainer(slotValue, hostLView, null, hostTNode);\n        hostLView[hostTNode.index] = lContainer;\n        addToViewTree(hostLView, lContainer);\n    }\n    _locateOrCreateAnchorNode(lContainer, hostLView, hostTNode, slotValue);\n    return new R3ViewContainerRef(lContainer, hostTNode, hostLView);\n}\n/**\n * Creates and inserts a comment node that acts as an anchor for a view container.\n *\n * If the host is a regular element, we have to insert a comment node manually which will\n * be used as an anchor when inserting elements. In this specific case we use low-level DOM\n * manipulation to insert it.\n */\nfunction insertAnchorNode(hostLView, hostTNode) {\n    const renderer = hostLView[RENDERER];\n    ngDevMode && ngDevMode.rendererCreateComment++;\n    const commentNode = renderer.createComment(ngDevMode ? 'container' : '');\n    const hostNative = getNativeByTNode(hostTNode, hostLView);\n    const parentOfHostNative = nativeParentNode(renderer, hostNative);\n    nativeInsertBefore(renderer, parentOfHostNative, commentNode, nativeNextSibling(renderer, hostNative), false);\n    return commentNode;\n}\nlet _locateOrCreateAnchorNode = createAnchorNode;\n/**\n * Regular creation mode: an anchor is created and\n * assigned to the `lContainer[NATIVE]` slot.\n */\nfunction createAnchorNode(lContainer, hostLView, hostTNode, slotValue) {\n    // We already have a native element (anchor) set, return.\n    if (lContainer[NATIVE])\n        return;\n    let commentNode;\n    // If the host is an element container, the native host element is guaranteed to be a\n    // comment and we can reuse that comment as anchor element for the new LContainer.\n    // The comment node in question is already part of the DOM structure so we don't need to append\n    // it again.\n    if (hostTNode.type & 8 /* TNodeType.ElementContainer */) {\n        commentNode = unwrapRNode(slotValue);\n    }\n    else {\n        commentNode = insertAnchorNode(hostLView, hostTNode);\n    }\n    lContainer[NATIVE] = commentNode;\n}\n/**\n * Hydration logic that looks up:\n *  - an anchor node in the DOM and stores the node in `lContainer[NATIVE]`\n *  - all dehydrated views in this container and puts them into `lContainer[DEHYDRATED_VIEWS]`\n */\nfunction locateOrCreateAnchorNode(lContainer, hostLView, hostTNode, slotValue) {\n    // We already have a native element (anchor) set and the process\n    // of finding dehydrated views happened (so the `lContainer[DEHYDRATED_VIEWS]`\n    // is not null), exit early.\n    if (lContainer[NATIVE] && lContainer[DEHYDRATED_VIEWS])\n        return;\n    const hydrationInfo = hostLView[HYDRATION];\n    const noOffsetIndex = hostTNode.index - HEADER_OFFSET;\n    // TODO(akushnir): this should really be a single condition, refactor the code\n    // to use `hasInSkipHydrationBlockFlag` logic inside `isInSkipHydrationBlock`.\n    const skipHydration = isInSkipHydrationBlock(hostTNode) || hasInSkipHydrationBlockFlag(hostTNode);\n    const isNodeCreationMode = !hydrationInfo || skipHydration || isDisconnectedNode$1(hydrationInfo, noOffsetIndex);\n    // Regular creation mode.\n    if (isNodeCreationMode) {\n        return createAnchorNode(lContainer, hostLView, hostTNode, slotValue);\n    }\n    // Hydration mode, looking up an anchor node and dehydrated views in DOM.\n    const currentRNode = getSegmentHead(hydrationInfo, noOffsetIndex);\n    const serializedViews = hydrationInfo.data[CONTAINERS]?.[noOffsetIndex];\n    ngDevMode &&\n        assertDefined(serializedViews, 'Unexpected state: no hydration info available for a given TNode, ' +\n            'which represents a view container.');\n    const [commentNode, dehydratedViews] = locateDehydratedViewsInContainer(currentRNode, serializedViews);\n    if (ngDevMode) {\n        validateMatchingNode(commentNode, Node.COMMENT_NODE, null, hostLView, hostTNode, true);\n        // Do not throw in case this node is already claimed (thus `false` as a second\n        // argument). If this container is created based on an `<ng-template>`, the comment\n        // node would be already claimed from the `template` instruction. If an element acts\n        // as an anchor (e.g. <div #vcRef>), a separate comment node would be created/located,\n        // so we need to claim it here.\n        markRNodeAsClaimedByHydration(commentNode, false);\n    }\n    lContainer[NATIVE] = commentNode;\n    lContainer[DEHYDRATED_VIEWS] = dehydratedViews;\n}\nfunction enableLocateOrCreateContainerRefImpl() {\n    _locateOrCreateAnchorNode = locateOrCreateAnchorNode;\n}\n\nclass LQuery_ {\n    constructor(queryList) {\n        this.queryList = queryList;\n        this.matches = null;\n    }\n    clone() {\n        return new LQuery_(this.queryList);\n    }\n    setDirty() {\n        this.queryList.setDirty();\n    }\n}\nclass LQueries_ {\n    constructor(queries = []) {\n        this.queries = queries;\n    }\n    createEmbeddedView(tView) {\n        const tQueries = tView.queries;\n        if (tQueries !== null) {\n            const noOfInheritedQueries = tView.contentQueries !== null ? tView.contentQueries[0] : tQueries.length;\n            const viewLQueries = [];\n            // An embedded view has queries propagated from a declaration view at the beginning of the\n            // TQueries collection and up until a first content query declared in the embedded view. Only\n            // propagated LQueries are created at this point (LQuery corresponding to declared content\n            // queries will be instantiated from the content query instructions for each directive).\n            for (let i = 0; i < noOfInheritedQueries; i++) {\n                const tQuery = tQueries.getByIndex(i);\n                const parentLQuery = this.queries[tQuery.indexInDeclarationView];\n                viewLQueries.push(parentLQuery.clone());\n            }\n            return new LQueries_(viewLQueries);\n        }\n        return null;\n    }\n    insertView(tView) {\n        this.dirtyQueriesWithMatches(tView);\n    }\n    detachView(tView) {\n        this.dirtyQueriesWithMatches(tView);\n    }\n    dirtyQueriesWithMatches(tView) {\n        for (let i = 0; i < this.queries.length; i++) {\n            if (getTQuery(tView, i).matches !== null) {\n                this.queries[i].setDirty();\n            }\n        }\n    }\n}\nclass TQueryMetadata_ {\n    constructor(predicate, flags, read = null) {\n        this.predicate = predicate;\n        this.flags = flags;\n        this.read = read;\n    }\n}\nclass TQueries_ {\n    constructor(queries = []) {\n        this.queries = queries;\n    }\n    elementStart(tView, tNode) {\n        ngDevMode &&\n            assertFirstCreatePass(tView, 'Queries should collect results on the first template pass only');\n        for (let i = 0; i < this.queries.length; i++) {\n            this.queries[i].elementStart(tView, tNode);\n        }\n    }\n    elementEnd(tNode) {\n        for (let i = 0; i < this.queries.length; i++) {\n            this.queries[i].elementEnd(tNode);\n        }\n    }\n    embeddedTView(tNode) {\n        let queriesForTemplateRef = null;\n        for (let i = 0; i < this.length; i++) {\n            const childQueryIndex = queriesForTemplateRef !== null ? queriesForTemplateRef.length : 0;\n            const tqueryClone = this.getByIndex(i).embeddedTView(tNode, childQueryIndex);\n            if (tqueryClone) {\n                tqueryClone.indexInDeclarationView = i;\n                if (queriesForTemplateRef !== null) {\n                    queriesForTemplateRef.push(tqueryClone);\n                }\n                else {\n                    queriesForTemplateRef = [tqueryClone];\n                }\n            }\n        }\n        return queriesForTemplateRef !== null ? new TQueries_(queriesForTemplateRef) : null;\n    }\n    template(tView, tNode) {\n        ngDevMode &&\n            assertFirstCreatePass(tView, 'Queries should collect results on the first template pass only');\n        for (let i = 0; i < this.queries.length; i++) {\n            this.queries[i].template(tView, tNode);\n        }\n    }\n    getByIndex(index) {\n        ngDevMode && assertIndexInRange(this.queries, index);\n        return this.queries[index];\n    }\n    get length() {\n        return this.queries.length;\n    }\n    track(tquery) {\n        this.queries.push(tquery);\n    }\n}\nclass TQuery_ {\n    constructor(metadata, nodeIndex = -1) {\n        this.metadata = metadata;\n        this.matches = null;\n        this.indexInDeclarationView = -1;\n        this.crossesNgTemplate = false;\n        /**\n         * A flag indicating if a given query still applies to nodes it is crossing. We use this flag\n         * (alongside with _declarationNodeIndex) to know when to stop applying content queries to\n         * elements in a template.\n         */\n        this._appliesToNextNode = true;\n        this._declarationNodeIndex = nodeIndex;\n    }\n    elementStart(tView, tNode) {\n        if (this.isApplyingToNode(tNode)) {\n            this.matchTNode(tView, tNode);\n        }\n    }\n    elementEnd(tNode) {\n        if (this._declarationNodeIndex === tNode.index) {\n            this._appliesToNextNode = false;\n        }\n    }\n    template(tView, tNode) {\n        this.elementStart(tView, tNode);\n    }\n    embeddedTView(tNode, childQueryIndex) {\n        if (this.isApplyingToNode(tNode)) {\n            this.crossesNgTemplate = true;\n            // A marker indicating a `<ng-template>` element (a placeholder for query results from\n            // embedded views created based on this `<ng-template>`).\n            this.addMatch(-tNode.index, childQueryIndex);\n            return new TQuery_(this.metadata);\n        }\n        return null;\n    }\n    isApplyingToNode(tNode) {\n        if (this._appliesToNextNode &&\n            (this.metadata.flags & 1 /* QueryFlags.descendants */) !== 1 /* QueryFlags.descendants */) {\n            const declarationNodeIdx = this._declarationNodeIndex;\n            let parent = tNode.parent;\n            // Determine if a given TNode is a \"direct\" child of a node on which a content query was\n            // declared (only direct children of query's host node can match with the descendants: false\n            // option). There are 3 main use-case / conditions to consider here:\n            // - <needs-target><i #target></i></needs-target>: here <i #target> parent node is a query\n            // host node;\n            // - <needs-target><ng-template [ngIf]=\"true\"><i #target></i></ng-template></needs-target>:\n            // here <i #target> parent node is null;\n            // - <needs-target><ng-container><i #target></i></ng-container></needs-target>: here we need\n            // to go past `<ng-container>` to determine <i #target> parent node (but we shouldn't traverse\n            // up past the query's host node!).\n            while (parent !== null && (parent.type & 8 /* TNodeType.ElementContainer */) &&\n                parent.index !== declarationNodeIdx) {\n                parent = parent.parent;\n            }\n            return declarationNodeIdx === (parent !== null ? parent.index : -1);\n        }\n        return this._appliesToNextNode;\n    }\n    matchTNode(tView, tNode) {\n        const predicate = this.metadata.predicate;\n        if (Array.isArray(predicate)) {\n            for (let i = 0; i < predicate.length; i++) {\n                const name = predicate[i];\n                this.matchTNodeWithReadOption(tView, tNode, getIdxOfMatchingSelector(tNode, name));\n                // Also try matching the name to a provider since strings can be used as DI tokens too.\n                this.matchTNodeWithReadOption(tView, tNode, locateDirectiveOrProvider(tNode, tView, name, false, false));\n            }\n        }\n        else {\n            if (predicate === TemplateRef) {\n                if (tNode.type & 4 /* TNodeType.Container */) {\n                    this.matchTNodeWithReadOption(tView, tNode, -1);\n                }\n            }\n            else {\n                this.matchTNodeWithReadOption(tView, tNode, locateDirectiveOrProvider(tNode, tView, predicate, false, false));\n            }\n        }\n    }\n    matchTNodeWithReadOption(tView, tNode, nodeMatchIdx) {\n        if (nodeMatchIdx !== null) {\n            const read = this.metadata.read;\n            if (read !== null) {\n                if (read === ElementRef || read === ViewContainerRef ||\n                    read === TemplateRef && (tNode.type & 4 /* TNodeType.Container */)) {\n                    this.addMatch(tNode.index, -2);\n                }\n                else {\n                    const directiveOrProviderIdx = locateDirectiveOrProvider(tNode, tView, read, false, false);\n                    if (directiveOrProviderIdx !== null) {\n                        this.addMatch(tNode.index, directiveOrProviderIdx);\n                    }\n                }\n            }\n            else {\n                this.addMatch(tNode.index, nodeMatchIdx);\n            }\n        }\n    }\n    addMatch(tNodeIdx, matchIdx) {\n        if (this.matches === null) {\n            this.matches = [tNodeIdx, matchIdx];\n        }\n        else {\n            this.matches.push(tNodeIdx, matchIdx);\n        }\n    }\n}\n/**\n * Iterates over local names for a given node and returns directive index\n * (or -1 if a local name points to an element).\n *\n * @param tNode static data of a node to check\n * @param selector selector to match\n * @returns directive index, -1 or null if a selector didn't match any of the local names\n */\nfunction getIdxOfMatchingSelector(tNode, selector) {\n    const localNames = tNode.localNames;\n    if (localNames !== null) {\n        for (let i = 0; i < localNames.length; i += 2) {\n            if (localNames[i] === selector) {\n                return localNames[i + 1];\n            }\n        }\n    }\n    return null;\n}\nfunction createResultByTNodeType(tNode, currentView) {\n    if (tNode.type & (3 /* TNodeType.AnyRNode */ | 8 /* TNodeType.ElementContainer */)) {\n        return createElementRef(tNode, currentView);\n    }\n    else if (tNode.type & 4 /* TNodeType.Container */) {\n        return createTemplateRef(tNode, currentView);\n    }\n    return null;\n}\nfunction createResultForNode(lView, tNode, matchingIdx, read) {\n    if (matchingIdx === -1) {\n        // if read token and / or strategy is not specified, detect it using appropriate tNode type\n        return createResultByTNodeType(tNode, lView);\n    }\n    else if (matchingIdx === -2) {\n        // read a special token from a node injector\n        return createSpecialToken(lView, tNode, read);\n    }\n    else {\n        // read a token\n        return getNodeInjectable(lView, lView[TVIEW], matchingIdx, tNode);\n    }\n}\nfunction createSpecialToken(lView, tNode, read) {\n    if (read === ElementRef) {\n        return createElementRef(tNode, lView);\n    }\n    else if (read === TemplateRef) {\n        return createTemplateRef(tNode, lView);\n    }\n    else if (read === ViewContainerRef) {\n        ngDevMode && assertTNodeType(tNode, 3 /* TNodeType.AnyRNode */ | 12 /* TNodeType.AnyContainer */);\n        return createContainerRef(tNode, lView);\n    }\n    else {\n        ngDevMode &&\n            throwError(`Special token to read should be one of ElementRef, TemplateRef or ViewContainerRef but got ${stringify(read)}.`);\n    }\n}\n/**\n * A helper function that creates query results for a given view. This function is meant to do the\n * processing once and only once for a given view instance (a set of results for a given view\n * doesn't change).\n */\nfunction materializeViewResults(tView, lView, tQuery, queryIndex) {\n    const lQuery = lView[QUERIES].queries[queryIndex];\n    if (lQuery.matches === null) {\n        const tViewData = tView.data;\n        const tQueryMatches = tQuery.matches;\n        const result = [];\n        for (let i = 0; i < tQueryMatches.length; i += 2) {\n            const matchedNodeIdx = tQueryMatches[i];\n            if (matchedNodeIdx < 0) {\n                // we at the <ng-template> marker which might have results in views created based on this\n                // <ng-template> - those results will be in separate views though, so here we just leave\n                // null as a placeholder\n                result.push(null);\n            }\n            else {\n                ngDevMode && assertIndexInRange(tViewData, matchedNodeIdx);\n                const tNode = tViewData[matchedNodeIdx];\n                result.push(createResultForNode(lView, tNode, tQueryMatches[i + 1], tQuery.metadata.read));\n            }\n        }\n        lQuery.matches = result;\n    }\n    return lQuery.matches;\n}\n/**\n * A helper function that collects (already materialized) query results from a tree of views,\n * starting with a provided LView.\n */\nfunction collectQueryResults(tView, lView, queryIndex, result) {\n    const tQuery = tView.queries.getByIndex(queryIndex);\n    const tQueryMatches = tQuery.matches;\n    if (tQueryMatches !== null) {\n        const lViewResults = materializeViewResults(tView, lView, tQuery, queryIndex);\n        for (let i = 0; i < tQueryMatches.length; i += 2) {\n            const tNodeIdx = tQueryMatches[i];\n            if (tNodeIdx > 0) {\n                result.push(lViewResults[i / 2]);\n            }\n            else {\n                const childQueryIndex = tQueryMatches[i + 1];\n                const declarationLContainer = lView[-tNodeIdx];\n                ngDevMode && assertLContainer(declarationLContainer);\n                // collect matches for views inserted in this container\n                for (let i = CONTAINER_HEADER_OFFSET; i < declarationLContainer.length; i++) {\n                    const embeddedLView = declarationLContainer[i];\n                    if (embeddedLView[DECLARATION_LCONTAINER] === embeddedLView[PARENT]) {\n                        collectQueryResults(embeddedLView[TVIEW], embeddedLView, childQueryIndex, result);\n                    }\n                }\n                // collect matches for views created from this declaration container and inserted into\n                // different containers\n                if (declarationLContainer[MOVED_VIEWS] !== null) {\n                    const embeddedLViews = declarationLContainer[MOVED_VIEWS];\n                    for (let i = 0; i < embeddedLViews.length; i++) {\n                        const embeddedLView = embeddedLViews[i];\n                        collectQueryResults(embeddedLView[TVIEW], embeddedLView, childQueryIndex, result);\n                    }\n                }\n            }\n        }\n    }\n    return result;\n}\n/**\n * Refreshes a query by combining matches from all active views and removing matches from deleted\n * views.\n *\n * @returns `true` if a query got dirty during change detection or if this is a static query\n * resolving in creation mode, `false` otherwise.\n *\n * @codeGenApi\n */\nfunction ɵɵqueryRefresh(queryList) {\n    const lView = getLView();\n    const tView = getTView();\n    const queryIndex = getCurrentQueryIndex();\n    setCurrentQueryIndex(queryIndex + 1);\n    const tQuery = getTQuery(tView, queryIndex);\n    if (queryList.dirty &&\n        (isCreationMode(lView) ===\n            ((tQuery.metadata.flags & 2 /* QueryFlags.isStatic */) === 2 /* QueryFlags.isStatic */))) {\n        if (tQuery.matches === null) {\n            queryList.reset([]);\n        }\n        else {\n            const result = tQuery.crossesNgTemplate ?\n                collectQueryResults(tView, lView, queryIndex, []) :\n                materializeViewResults(tView, lView, tQuery, queryIndex);\n            queryList.reset(result, unwrapElementRef);\n            queryList.notifyOnChanges();\n        }\n        return true;\n    }\n    return false;\n}\n/**\n * Creates new QueryList, stores the reference in LView and returns QueryList.\n *\n * @param predicate The type for which the query will search\n * @param flags Flags associated with the query\n * @param read What to save in the query\n *\n * @codeGenApi\n */\nfunction ɵɵviewQuery(predicate, flags, read) {\n    ngDevMode && assertNumber(flags, 'Expecting flags');\n    const tView = getTView();\n    if (tView.firstCreatePass) {\n        createTQuery(tView, new TQueryMetadata_(predicate, flags, read), -1);\n        if ((flags & 2 /* QueryFlags.isStatic */) === 2 /* QueryFlags.isStatic */) {\n            tView.staticViewQueries = true;\n        }\n    }\n    createLQuery(tView, getLView(), flags);\n}\n/**\n * Registers a QueryList, associated with a content query, for later refresh (part of a view\n * refresh).\n *\n * @param directiveIndex Current directive index\n * @param predicate The type for which the query will search\n * @param flags Flags associated with the query\n * @param read What to save in the query\n * @returns QueryList<T>\n *\n * @codeGenApi\n */\nfunction ɵɵcontentQuery(directiveIndex, predicate, flags, read) {\n    ngDevMode && assertNumber(flags, 'Expecting flags');\n    const tView = getTView();\n    if (tView.firstCreatePass) {\n        const tNode = getCurrentTNode();\n        createTQuery(tView, new TQueryMetadata_(predicate, flags, read), tNode.index);\n        saveContentQueryAndDirectiveIndex(tView, directiveIndex);\n        if ((flags & 2 /* QueryFlags.isStatic */) === 2 /* QueryFlags.isStatic */) {\n            tView.staticContentQueries = true;\n        }\n    }\n    createLQuery(tView, getLView(), flags);\n}\n/**\n * Loads a QueryList corresponding to the current view or content query.\n *\n * @codeGenApi\n */\nfunction ɵɵloadQuery() {\n    return loadQueryInternal(getLView(), getCurrentQueryIndex());\n}\nfunction loadQueryInternal(lView, queryIndex) {\n    ngDevMode &&\n        assertDefined(lView[QUERIES], 'LQueries should be defined when trying to load a query');\n    ngDevMode && assertIndexInRange(lView[QUERIES].queries, queryIndex);\n    return lView[QUERIES].queries[queryIndex].queryList;\n}\nfunction createLQuery(tView, lView, flags) {\n    const queryList = new QueryList((flags & 4 /* QueryFlags.emitDistinctChangesOnly */) === 4 /* QueryFlags.emitDistinctChangesOnly */);\n    storeCleanupWithContext(tView, lView, queryList, queryList.destroy);\n    if (lView[QUERIES] === null)\n        lView[QUERIES] = new LQueries_();\n    lView[QUERIES].queries.push(new LQuery_(queryList));\n}\nfunction createTQuery(tView, metadata, nodeIndex) {\n    if (tView.queries === null)\n        tView.queries = new TQueries_();\n    tView.queries.track(new TQuery_(metadata, nodeIndex));\n}\nfunction saveContentQueryAndDirectiveIndex(tView, directiveIndex) {\n    const tViewContentQueries = tView.contentQueries || (tView.contentQueries = []);\n    const lastSavedDirectiveIndex = tViewContentQueries.length ? tViewContentQueries[tViewContentQueries.length - 1] : -1;\n    if (directiveIndex !== lastSavedDirectiveIndex) {\n        tViewContentQueries.push(tView.queries.length - 1, directiveIndex);\n    }\n}\nfunction getTQuery(tView, index) {\n    ngDevMode && assertDefined(tView.queries, 'TQueries must be defined to retrieve a TQuery');\n    return tView.queries.getByIndex(index);\n}\n\n/**\n * Retrieves `TemplateRef` instance from `Injector` when a local reference is placed on the\n * `<ng-template>` element.\n *\n * @codeGenApi\n */\nfunction ɵɵtemplateRefExtractor(tNode, lView) {\n    return createTemplateRef(tNode, lView);\n}\n\n/**\n * A mapping of the @angular/core API surface used in generated expressions to the actual symbols.\n *\n * This should be kept up to date with the public exports of @angular/core.\n */\nconst angularCoreEnv = (() => ({\n    'ɵɵattribute': ɵɵattribute,\n    'ɵɵattributeInterpolate1': ɵɵattributeInterpolate1,\n    'ɵɵattributeInterpolate2': ɵɵattributeInterpolate2,\n    'ɵɵattributeInterpolate3': ɵɵattributeInterpolate3,\n    'ɵɵattributeInterpolate4': ɵɵattributeInterpolate4,\n    'ɵɵattributeInterpolate5': ɵɵattributeInterpolate5,\n    'ɵɵattributeInterpolate6': ɵɵattributeInterpolate6,\n    'ɵɵattributeInterpolate7': ɵɵattributeInterpolate7,\n    'ɵɵattributeInterpolate8': ɵɵattributeInterpolate8,\n    'ɵɵattributeInterpolateV': ɵɵattributeInterpolateV,\n    'ɵɵdefineComponent': ɵɵdefineComponent,\n    'ɵɵdefineDirective': ɵɵdefineDirective,\n    'ɵɵdefineInjectable': ɵɵdefineInjectable,\n    'ɵɵdefineInjector': ɵɵdefineInjector,\n    'ɵɵdefineNgModule': ɵɵdefineNgModule,\n    'ɵɵdefinePipe': ɵɵdefinePipe,\n    'ɵɵdirectiveInject': ɵɵdirectiveInject,\n    'ɵɵgetInheritedFactory': ɵɵgetInheritedFactory,\n    'ɵɵinject': ɵɵinject,\n    'ɵɵinjectAttribute': ɵɵinjectAttribute,\n    'ɵɵinvalidFactory': ɵɵinvalidFactory,\n    'ɵɵinvalidFactoryDep': ɵɵinvalidFactoryDep,\n    'ɵɵtemplateRefExtractor': ɵɵtemplateRefExtractor,\n    'ɵɵresetView': ɵɵresetView,\n    'ɵɵHostDirectivesFeature': ɵɵHostDirectivesFeature,\n    'ɵɵNgOnChangesFeature': ɵɵNgOnChangesFeature,\n    'ɵɵProvidersFeature': ɵɵProvidersFeature,\n    'ɵɵCopyDefinitionFeature': ɵɵCopyDefinitionFeature,\n    'ɵɵInheritDefinitionFeature': ɵɵInheritDefinitionFeature,\n    'ɵɵInputTransformsFeature': ɵɵInputTransformsFeature,\n    'ɵɵStandaloneFeature': ɵɵStandaloneFeature,\n    'ɵɵnextContext': ɵɵnextContext,\n    'ɵɵnamespaceHTML': ɵɵnamespaceHTML,\n    'ɵɵnamespaceMathML': ɵɵnamespaceMathML,\n    'ɵɵnamespaceSVG': ɵɵnamespaceSVG,\n    'ɵɵenableBindings': ɵɵenableBindings,\n    'ɵɵdisableBindings': ɵɵdisableBindings,\n    'ɵɵelementStart': ɵɵelementStart,\n    'ɵɵelementEnd': ɵɵelementEnd,\n    'ɵɵelement': ɵɵelement,\n    'ɵɵelementContainerStart': ɵɵelementContainerStart,\n    'ɵɵelementContainerEnd': ɵɵelementContainerEnd,\n    'ɵɵelementContainer': ɵɵelementContainer,\n    'ɵɵpureFunction0': ɵɵpureFunction0,\n    'ɵɵpureFunction1': ɵɵpureFunction1,\n    'ɵɵpureFunction2': ɵɵpureFunction2,\n    'ɵɵpureFunction3': ɵɵpureFunction3,\n    'ɵɵpureFunction4': ɵɵpureFunction4,\n    'ɵɵpureFunction5': ɵɵpureFunction5,\n    'ɵɵpureFunction6': ɵɵpureFunction6,\n    'ɵɵpureFunction7': ɵɵpureFunction7,\n    'ɵɵpureFunction8': ɵɵpureFunction8,\n    'ɵɵpureFunctionV': ɵɵpureFunctionV,\n    'ɵɵgetCurrentView': ɵɵgetCurrentView,\n    'ɵɵrestoreView': ɵɵrestoreView,\n    'ɵɵlistener': ɵɵlistener,\n    'ɵɵprojection': ɵɵprojection,\n    'ɵɵsyntheticHostProperty': ɵɵsyntheticHostProperty,\n    'ɵɵsyntheticHostListener': ɵɵsyntheticHostListener,\n    'ɵɵpipeBind1': ɵɵpipeBind1,\n    'ɵɵpipeBind2': ɵɵpipeBind2,\n    'ɵɵpipeBind3': ɵɵpipeBind3,\n    'ɵɵpipeBind4': ɵɵpipeBind4,\n    'ɵɵpipeBindV': ɵɵpipeBindV,\n    'ɵɵprojectionDef': ɵɵprojectionDef,\n    'ɵɵhostProperty': ɵɵhostProperty,\n    'ɵɵproperty': ɵɵproperty,\n    'ɵɵpropertyInterpolate': ɵɵpropertyInterpolate,\n    'ɵɵpropertyInterpolate1': ɵɵpropertyInterpolate1,\n    'ɵɵpropertyInterpolate2': ɵɵpropertyInterpolate2,\n    'ɵɵpropertyInterpolate3': ɵɵpropertyInterpolate3,\n    'ɵɵpropertyInterpolate4': ɵɵpropertyInterpolate4,\n    'ɵɵpropertyInterpolate5': ɵɵpropertyInterpolate5,\n    'ɵɵpropertyInterpolate6': ɵɵpropertyInterpolate6,\n    'ɵɵpropertyInterpolate7': ɵɵpropertyInterpolate7,\n    'ɵɵpropertyInterpolate8': ɵɵpropertyInterpolate8,\n    'ɵɵpropertyInterpolateV': ɵɵpropertyInterpolateV,\n    'ɵɵpipe': ɵɵpipe,\n    'ɵɵqueryRefresh': ɵɵqueryRefresh,\n    'ɵɵviewQuery': ɵɵviewQuery,\n    'ɵɵloadQuery': ɵɵloadQuery,\n    'ɵɵcontentQuery': ɵɵcontentQuery,\n    'ɵɵreference': ɵɵreference,\n    'ɵɵclassMap': ɵɵclassMap,\n    'ɵɵclassMapInterpolate1': ɵɵclassMapInterpolate1,\n    'ɵɵclassMapInterpolate2': ɵɵclassMapInterpolate2,\n    'ɵɵclassMapInterpolate3': ɵɵclassMapInterpolate3,\n    'ɵɵclassMapInterpolate4': ɵɵclassMapInterpolate4,\n    'ɵɵclassMapInterpolate5': ɵɵclassMapInterpolate5,\n    'ɵɵclassMapInterpolate6': ɵɵclassMapInterpolate6,\n    'ɵɵclassMapInterpolate7': ɵɵclassMapInterpolate7,\n    'ɵɵclassMapInterpolate8': ɵɵclassMapInterpolate8,\n    'ɵɵclassMapInterpolateV': ɵɵclassMapInterpolateV,\n    'ɵɵstyleMap': ɵɵstyleMap,\n    'ɵɵstyleMapInterpolate1': ɵɵstyleMapInterpolate1,\n    'ɵɵstyleMapInterpolate2': ɵɵstyleMapInterpolate2,\n    'ɵɵstyleMapInterpolate3': ɵɵstyleMapInterpolate3,\n    'ɵɵstyleMapInterpolate4': ɵɵstyleMapInterpolate4,\n    'ɵɵstyleMapInterpolate5': ɵɵstyleMapInterpolate5,\n    'ɵɵstyleMapInterpolate6': ɵɵstyleMapInterpolate6,\n    'ɵɵstyleMapInterpolate7': ɵɵstyleMapInterpolate7,\n    'ɵɵstyleMapInterpolate8': ɵɵstyleMapInterpolate8,\n    'ɵɵstyleMapInterpolateV': ɵɵstyleMapInterpolateV,\n    'ɵɵstyleProp': ɵɵstyleProp,\n    'ɵɵstylePropInterpolate1': ɵɵstylePropInterpolate1,\n    'ɵɵstylePropInterpolate2': ɵɵstylePropInterpolate2,\n    'ɵɵstylePropInterpolate3': ɵɵstylePropInterpolate3,\n    'ɵɵstylePropInterpolate4': ɵɵstylePropInterpolate4,\n    'ɵɵstylePropInterpolate5': ɵɵstylePropInterpolate5,\n    'ɵɵstylePropInterpolate6': ɵɵstylePropInterpolate6,\n    'ɵɵstylePropInterpolate7': ɵɵstylePropInterpolate7,\n    'ɵɵstylePropInterpolate8': ɵɵstylePropInterpolate8,\n    'ɵɵstylePropInterpolateV': ɵɵstylePropInterpolateV,\n    'ɵɵclassProp': ɵɵclassProp,\n    'ɵɵadvance': ɵɵadvance,\n    'ɵɵtemplate': ɵɵtemplate,\n    'ɵɵdefer': ɵɵdefer,\n    'ɵɵtext': ɵɵtext,\n    'ɵɵtextInterpolate': ɵɵtextInterpolate,\n    'ɵɵtextInterpolate1': ɵɵtextInterpolate1,\n    'ɵɵtextInterpolate2': ɵɵtextInterpolate2,\n    'ɵɵtextInterpolate3': ɵɵtextInterpolate3,\n    'ɵɵtextInterpolate4': ɵɵtextInterpolate4,\n    'ɵɵtextInterpolate5': ɵɵtextInterpolate5,\n    'ɵɵtextInterpolate6': ɵɵtextInterpolate6,\n    'ɵɵtextInterpolate7': ɵɵtextInterpolate7,\n    'ɵɵtextInterpolate8': ɵɵtextInterpolate8,\n    'ɵɵtextInterpolateV': ɵɵtextInterpolateV,\n    'ɵɵi18n': ɵɵi18n,\n    'ɵɵi18nAttributes': ɵɵi18nAttributes,\n    'ɵɵi18nExp': ɵɵi18nExp,\n    'ɵɵi18nStart': ɵɵi18nStart,\n    'ɵɵi18nEnd': ɵɵi18nEnd,\n    'ɵɵi18nApply': ɵɵi18nApply,\n    'ɵɵi18nPostprocess': ɵɵi18nPostprocess,\n    'ɵɵresolveWindow': ɵɵresolveWindow,\n    'ɵɵresolveDocument': ɵɵresolveDocument,\n    'ɵɵresolveBody': ɵɵresolveBody,\n    'ɵɵsetComponentScope': ɵɵsetComponentScope,\n    'ɵɵsetNgModuleScope': ɵɵsetNgModuleScope,\n    'ɵɵregisterNgModuleType': registerNgModuleType,\n    'ɵɵsanitizeHtml': ɵɵsanitizeHtml,\n    'ɵɵsanitizeStyle': ɵɵsanitizeStyle,\n    'ɵɵsanitizeResourceUrl': ɵɵsanitizeResourceUrl,\n    'ɵɵsanitizeScript': ɵɵsanitizeScript,\n    'ɵɵsanitizeUrl': ɵɵsanitizeUrl,\n    'ɵɵsanitizeUrlOrResourceUrl': ɵɵsanitizeUrlOrResourceUrl,\n    'ɵɵtrustConstantHtml': ɵɵtrustConstantHtml,\n    'ɵɵtrustConstantResourceUrl': ɵɵtrustConstantResourceUrl,\n    'ɵɵvalidateIframeAttribute': ɵɵvalidateIframeAttribute,\n    'forwardRef': forwardRef,\n    'resolveForwardRef': resolveForwardRef,\n}))();\n\nlet jitOptions = null;\nfunction setJitOptions(options) {\n    if (jitOptions !== null) {\n        if (options.defaultEncapsulation !== jitOptions.defaultEncapsulation) {\n            ngDevMode &&\n                console.error('Provided value for `defaultEncapsulation` can not be changed once it has been set.');\n            return;\n        }\n        if (options.preserveWhitespaces !== jitOptions.preserveWhitespaces) {\n            ngDevMode &&\n                console.error('Provided value for `preserveWhitespaces` can not be changed once it has been set.');\n            return;\n        }\n    }\n    jitOptions = options;\n}\nfunction getJitOptions() {\n    return jitOptions;\n}\nfunction resetJitOptions() {\n    jitOptions = null;\n}\n\nfunction patchModuleCompilation() {\n    // Does nothing, but exists as a target for patching.\n}\n\nfunction isModuleWithProviders(value) {\n    return value.ngModule !== undefined;\n}\nfunction isNgModule(value) {\n    return !!getNgModuleDef(value);\n}\nfunction isPipe(value) {\n    return !!getPipeDef$1(value);\n}\nfunction isDirective(value) {\n    return !!getDirectiveDef(value);\n}\nfunction isComponent(value) {\n    return !!getComponentDef(value);\n}\n\nconst moduleQueue = [];\n/**\n * Enqueues moduleDef to be checked later to see if scope can be set on its\n * component declarations.\n */\nfunction enqueueModuleForDelayedScoping(moduleType, ngModule) {\n    moduleQueue.push({ moduleType, ngModule });\n}\nlet flushingModuleQueue = false;\n/**\n * Loops over queued module definitions, if a given module definition has all of its\n * declarations resolved, it dequeues that module definition and sets the scope on\n * its declarations.\n */\nfunction flushModuleScopingQueueAsMuchAsPossible() {\n    if (!flushingModuleQueue) {\n        flushingModuleQueue = true;\n        try {\n            for (let i = moduleQueue.length - 1; i >= 0; i--) {\n                const { moduleType, ngModule } = moduleQueue[i];\n                if (ngModule.declarations && ngModule.declarations.every(isResolvedDeclaration)) {\n                    // dequeue\n                    moduleQueue.splice(i, 1);\n                    setScopeOnDeclaredComponents(moduleType, ngModule);\n                }\n            }\n        }\n        finally {\n            flushingModuleQueue = false;\n        }\n    }\n}\n/**\n * Returns truthy if a declaration has resolved. If the declaration happens to be\n * an array of declarations, it will recurse to check each declaration in that array\n * (which may also be arrays).\n */\nfunction isResolvedDeclaration(declaration) {\n    if (Array.isArray(declaration)) {\n        return declaration.every(isResolvedDeclaration);\n    }\n    return !!resolveForwardRef(declaration);\n}\n/**\n * Compiles a module in JIT mode.\n *\n * This function automatically gets called when a class has a `@NgModule` decorator.\n */\nfunction compileNgModule(moduleType, ngModule = {}) {\n    patchModuleCompilation();\n    compileNgModuleDefs(moduleType, ngModule);\n    if (ngModule.id !== undefined) {\n        registerNgModuleType(moduleType, ngModule.id);\n    }\n    // Because we don't know if all declarations have resolved yet at the moment the\n    // NgModule decorator is executing, we're enqueueing the setting of module scope\n    // on its declarations to be run at a later time when all declarations for the module,\n    // including forward refs, have resolved.\n    enqueueModuleForDelayedScoping(moduleType, ngModule);\n}\n/**\n * Compiles and adds the `ɵmod`, `ɵfac` and `ɵinj` properties to the module class.\n *\n * It's possible to compile a module via this API which will allow duplicate declarations in its\n * root.\n */\nfunction compileNgModuleDefs(moduleType, ngModule, allowDuplicateDeclarationsInRoot = false) {\n    ngDevMode && assertDefined(moduleType, 'Required value moduleType');\n    ngDevMode && assertDefined(ngModule, 'Required value ngModule');\n    const declarations = flatten(ngModule.declarations || EMPTY_ARRAY);\n    let ngModuleDef = null;\n    Object.defineProperty(moduleType, NG_MOD_DEF, {\n        configurable: true,\n        get: () => {\n            if (ngModuleDef === null) {\n                if (ngDevMode && ngModule.imports && ngModule.imports.indexOf(moduleType) > -1) {\n                    // We need to assert this immediately, because allowing it to continue will cause it to\n                    // go into an infinite loop before we've reached the point where we throw all the errors.\n                    throw new Error(`'${stringifyForError(moduleType)}' module can't import itself`);\n                }\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'NgModule', type: moduleType });\n                ngModuleDef = compiler.compileNgModule(angularCoreEnv, `ng:///${moduleType.name}/ɵmod.js`, {\n                    type: moduleType,\n                    bootstrap: flatten(ngModule.bootstrap || EMPTY_ARRAY).map(resolveForwardRef),\n                    declarations: declarations.map(resolveForwardRef),\n                    imports: flatten(ngModule.imports || EMPTY_ARRAY)\n                        .map(resolveForwardRef)\n                        .map(expandModuleWithProviders),\n                    exports: flatten(ngModule.exports || EMPTY_ARRAY)\n                        .map(resolveForwardRef)\n                        .map(expandModuleWithProviders),\n                    schemas: ngModule.schemas ? flatten(ngModule.schemas) : null,\n                    id: ngModule.id || null,\n                });\n                // Set `schemas` on ngModuleDef to an empty array in JIT mode to indicate that runtime\n                // should verify that there are no unknown elements in a template. In AOT mode, that check\n                // happens at compile time and `schemas` information is not present on Component and Module\n                // defs after compilation (so the check doesn't happen the second time at runtime).\n                if (!ngModuleDef.schemas) {\n                    ngModuleDef.schemas = [];\n                }\n            }\n            return ngModuleDef;\n        }\n    });\n    let ngFactoryDef = null;\n    Object.defineProperty(moduleType, NG_FACTORY_DEF, {\n        get: () => {\n            if (ngFactoryDef === null) {\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'NgModule', type: moduleType });\n                ngFactoryDef = compiler.compileFactory(angularCoreEnv, `ng:///${moduleType.name}/ɵfac.js`, {\n                    name: moduleType.name,\n                    type: moduleType,\n                    deps: reflectDependencies(moduleType),\n                    target: compiler.FactoryTarget.NgModule,\n                    typeArgumentCount: 0,\n                });\n            }\n            return ngFactoryDef;\n        },\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n    let ngInjectorDef = null;\n    Object.defineProperty(moduleType, NG_INJ_DEF, {\n        get: () => {\n            if (ngInjectorDef === null) {\n                ngDevMode && verifySemanticsOfNgModuleDef(moduleType, allowDuplicateDeclarationsInRoot);\n                const meta = {\n                    name: moduleType.name,\n                    type: moduleType,\n                    providers: ngModule.providers || EMPTY_ARRAY,\n                    imports: [\n                        (ngModule.imports || EMPTY_ARRAY).map(resolveForwardRef),\n                        (ngModule.exports || EMPTY_ARRAY).map(resolveForwardRef),\n                    ],\n                };\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'NgModule', type: moduleType });\n                ngInjectorDef =\n                    compiler.compileInjector(angularCoreEnv, `ng:///${moduleType.name}/ɵinj.js`, meta);\n            }\n            return ngInjectorDef;\n        },\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\nfunction generateStandaloneInDeclarationsError(type, location) {\n    const prefix = `Unexpected \"${stringifyForError(type)}\" found in the \"declarations\" array of the`;\n    const suffix = `\"${stringifyForError(type)}\" is marked as standalone and can't be declared ` +\n        'in any NgModule - did you intend to import it instead (by adding it to the \"imports\" array)?';\n    return `${prefix} ${location}, ${suffix}`;\n}\nfunction verifySemanticsOfNgModuleDef(moduleType, allowDuplicateDeclarationsInRoot, importingModule) {\n    if (verifiedNgModule.get(moduleType))\n        return;\n    // skip verifications of standalone components, directives, and pipes\n    if (isStandalone(moduleType))\n        return;\n    verifiedNgModule.set(moduleType, true);\n    moduleType = resolveForwardRef(moduleType);\n    let ngModuleDef;\n    if (importingModule) {\n        ngModuleDef = getNgModuleDef(moduleType);\n        if (!ngModuleDef) {\n            throw new Error(`Unexpected value '${moduleType.name}' imported by the module '${importingModule.name}'. Please add an @NgModule annotation.`);\n        }\n    }\n    else {\n        ngModuleDef = getNgModuleDef(moduleType, true);\n    }\n    const errors = [];\n    const declarations = maybeUnwrapFn(ngModuleDef.declarations);\n    const imports = maybeUnwrapFn(ngModuleDef.imports);\n    flatten(imports).map(unwrapModuleWithProvidersImports).forEach(modOrStandaloneCmpt => {\n        verifySemanticsOfNgModuleImport(modOrStandaloneCmpt, moduleType);\n        verifySemanticsOfNgModuleDef(modOrStandaloneCmpt, false, moduleType);\n    });\n    const exports = maybeUnwrapFn(ngModuleDef.exports);\n    declarations.forEach(verifyDeclarationsHaveDefinitions);\n    declarations.forEach(verifyDirectivesHaveSelector);\n    declarations.forEach((declarationType) => verifyNotStandalone(declarationType, moduleType));\n    const combinedDeclarations = [\n        ...declarations.map(resolveForwardRef),\n        ...flatten(imports.map(computeCombinedExports)).map(resolveForwardRef),\n    ];\n    exports.forEach(verifyExportsAreDeclaredOrReExported);\n    declarations.forEach(decl => verifyDeclarationIsUnique(decl, allowDuplicateDeclarationsInRoot));\n    const ngModule = getAnnotation(moduleType, 'NgModule');\n    if (ngModule) {\n        ngModule.imports &&\n            flatten(ngModule.imports).map(unwrapModuleWithProvidersImports).forEach(mod => {\n                verifySemanticsOfNgModuleImport(mod, moduleType);\n                verifySemanticsOfNgModuleDef(mod, false, moduleType);\n            });\n        ngModule.bootstrap && deepForEach(ngModule.bootstrap, verifyCorrectBootstrapType);\n        ngModule.bootstrap && deepForEach(ngModule.bootstrap, verifyComponentIsPartOfNgModule);\n    }\n    // Throw Error if any errors were detected.\n    if (errors.length) {\n        throw new Error(errors.join('\\n'));\n    }\n    ////////////////////////////////////////////////////////////////////////////////////////////////\n    function verifyDeclarationsHaveDefinitions(type) {\n        type = resolveForwardRef(type);\n        const def = getComponentDef(type) || getDirectiveDef(type) || getPipeDef$1(type);\n        if (!def) {\n            errors.push(`Unexpected value '${stringifyForError(type)}' declared by the module '${stringifyForError(moduleType)}'. Please add a @Pipe/@Directive/@Component annotation.`);\n        }\n    }\n    function verifyDirectivesHaveSelector(type) {\n        type = resolveForwardRef(type);\n        const def = getDirectiveDef(type);\n        if (!getComponentDef(type) && def && def.selectors.length == 0) {\n            errors.push(`Directive ${stringifyForError(type)} has no selector, please add it!`);\n        }\n    }\n    function verifyNotStandalone(type, moduleType) {\n        type = resolveForwardRef(type);\n        const def = getComponentDef(type) || getDirectiveDef(type) || getPipeDef$1(type);\n        if (def?.standalone) {\n            const location = `\"${stringifyForError(moduleType)}\" NgModule`;\n            errors.push(generateStandaloneInDeclarationsError(type, location));\n        }\n    }\n    function verifyExportsAreDeclaredOrReExported(type) {\n        type = resolveForwardRef(type);\n        const kind = getComponentDef(type) && 'component' || getDirectiveDef(type) && 'directive' ||\n            getPipeDef$1(type) && 'pipe';\n        if (kind) {\n            // only checked if we are declared as Component, Directive, or Pipe\n            // Modules don't need to be declared or imported.\n            if (combinedDeclarations.lastIndexOf(type) === -1) {\n                // We are exporting something which we don't explicitly declare or import.\n                errors.push(`Can't export ${kind} ${stringifyForError(type)} from ${stringifyForError(moduleType)} as it was neither declared nor imported!`);\n            }\n        }\n    }\n    function verifyDeclarationIsUnique(type, suppressErrors) {\n        type = resolveForwardRef(type);\n        const existingModule = ownerNgModule.get(type);\n        if (existingModule && existingModule !== moduleType) {\n            if (!suppressErrors) {\n                const modules = [existingModule, moduleType].map(stringifyForError).sort();\n                errors.push(`Type ${stringifyForError(type)} is part of the declarations of 2 modules: ${modules[0]} and ${modules[1]}! ` +\n                    `Please consider moving ${stringifyForError(type)} to a higher module that imports ${modules[0]} and ${modules[1]}. ` +\n                    `You can also create a new NgModule that exports and includes ${stringifyForError(type)} then import that NgModule in ${modules[0]} and ${modules[1]}.`);\n            }\n        }\n        else {\n            // Mark type as having owner.\n            ownerNgModule.set(type, moduleType);\n        }\n    }\n    function verifyComponentIsPartOfNgModule(type) {\n        type = resolveForwardRef(type);\n        const existingModule = ownerNgModule.get(type);\n        if (!existingModule && !isStandalone(type)) {\n            errors.push(`Component ${stringifyForError(type)} is not part of any NgModule or the module has not been imported into your module.`);\n        }\n    }\n    function verifyCorrectBootstrapType(type) {\n        type = resolveForwardRef(type);\n        if (!getComponentDef(type)) {\n            errors.push(`${stringifyForError(type)} cannot be used as an entry component.`);\n        }\n        if (isStandalone(type)) {\n            // Note: this error should be the same as the\n            // `NGMODULE_BOOTSTRAP_IS_STANDALONE` one in AOT compiler.\n            errors.push(`The \\`${stringifyForError(type)}\\` class is a standalone component, which can ` +\n                `not be used in the \\`@NgModule.bootstrap\\` array. Use the \\`bootstrapApplication\\` ` +\n                `function for bootstrap instead.`);\n        }\n    }\n    function verifySemanticsOfNgModuleImport(type, importingModule) {\n        type = resolveForwardRef(type);\n        const directiveDef = getComponentDef(type) || getDirectiveDef(type);\n        if (directiveDef !== null && !directiveDef.standalone) {\n            throw new Error(`Unexpected directive '${type.name}' imported by the module '${importingModule.name}'. Please add an @NgModule annotation.`);\n        }\n        const pipeDef = getPipeDef$1(type);\n        if (pipeDef !== null && !pipeDef.standalone) {\n            throw new Error(`Unexpected pipe '${type.name}' imported by the module '${importingModule.name}'. Please add an @NgModule annotation.`);\n        }\n    }\n}\nfunction unwrapModuleWithProvidersImports(typeOrWithProviders) {\n    typeOrWithProviders = resolveForwardRef(typeOrWithProviders);\n    return typeOrWithProviders.ngModule || typeOrWithProviders;\n}\nfunction getAnnotation(type, name) {\n    let annotation = null;\n    collect(type.__annotations__);\n    collect(type.decorators);\n    return annotation;\n    function collect(annotations) {\n        if (annotations) {\n            annotations.forEach(readAnnotation);\n        }\n    }\n    function readAnnotation(decorator) {\n        if (!annotation) {\n            const proto = Object.getPrototypeOf(decorator);\n            if (proto.ngMetadataName == name) {\n                annotation = decorator;\n            }\n            else if (decorator.type) {\n                const proto = Object.getPrototypeOf(decorator.type);\n                if (proto.ngMetadataName == name) {\n                    annotation = decorator.args[0];\n                }\n            }\n        }\n    }\n}\n/**\n * Keep track of compiled components. This is needed because in tests we often want to compile the\n * same component with more than one NgModule. This would cause an error unless we reset which\n * NgModule the component belongs to. We keep the list of compiled components here so that the\n * TestBed can reset it later.\n */\nlet ownerNgModule = new WeakMap();\nlet verifiedNgModule = new WeakMap();\nfunction resetCompiledComponents() {\n    ownerNgModule = new WeakMap();\n    verifiedNgModule = new WeakMap();\n    moduleQueue.length = 0;\n    GENERATED_COMP_IDS.clear();\n}\n/**\n * Computes the combined declarations of explicit declarations, as well as declarations inherited by\n * traversing the exports of imported modules.\n * @param type\n */\nfunction computeCombinedExports(type) {\n    type = resolveForwardRef(type);\n    const ngModuleDef = getNgModuleDef(type);\n    // a standalone component, directive or pipe\n    if (ngModuleDef === null) {\n        return [type];\n    }\n    return flatten(maybeUnwrapFn(ngModuleDef.exports).map((type) => {\n        const ngModuleDef = getNgModuleDef(type);\n        if (ngModuleDef) {\n            verifySemanticsOfNgModuleDef(type, false);\n            return computeCombinedExports(type);\n        }\n        else {\n            return type;\n        }\n    }));\n}\n/**\n * Some declared components may be compiled asynchronously, and thus may not have their\n * ɵcmp set yet. If this is the case, then a reference to the module is written into\n * the `ngSelectorScope` property of the declared type.\n */\nfunction setScopeOnDeclaredComponents(moduleType, ngModule) {\n    const declarations = flatten(ngModule.declarations || EMPTY_ARRAY);\n    const transitiveScopes = transitiveScopesFor(moduleType);\n    declarations.forEach(declaration => {\n        declaration = resolveForwardRef(declaration);\n        if (declaration.hasOwnProperty(NG_COMP_DEF)) {\n            // A `ɵcmp` field exists - go ahead and patch the component directly.\n            const component = declaration;\n            const componentDef = getComponentDef(component);\n            patchComponentDefWithScope(componentDef, transitiveScopes);\n        }\n        else if (!declaration.hasOwnProperty(NG_DIR_DEF) && !declaration.hasOwnProperty(NG_PIPE_DEF)) {\n            // Set `ngSelectorScope` for future reference when the component compilation finishes.\n            declaration.ngSelectorScope = moduleType;\n        }\n    });\n}\n/**\n * Patch the definition of a component with directives and pipes from the compilation scope of\n * a given module.\n */\nfunction patchComponentDefWithScope(componentDef, transitiveScopes) {\n    componentDef.directiveDefs = () => Array.from(transitiveScopes.compilation.directives)\n        .map(dir => dir.hasOwnProperty(NG_COMP_DEF) ? getComponentDef(dir) : getDirectiveDef(dir))\n        .filter(def => !!def);\n    componentDef.pipeDefs = () => Array.from(transitiveScopes.compilation.pipes).map(pipe => getPipeDef$1(pipe));\n    componentDef.schemas = transitiveScopes.schemas;\n    // Since we avoid Components/Directives/Pipes recompiling in case there are no overrides, we\n    // may face a problem where previously compiled defs available to a given Component/Directive\n    // are cached in TView and may become stale (in case any of these defs gets recompiled). In\n    // order to avoid this problem, we force fresh TView to be created.\n    componentDef.tView = null;\n}\n/**\n * Compute the pair of transitive scopes (compilation scope and exported scope) for a given type\n * (either a NgModule or a standalone component / directive / pipe).\n */\nfunction transitiveScopesFor(type) {\n    if (isNgModule(type)) {\n        return transitiveScopesForNgModule(type);\n    }\n    else if (isStandalone(type)) {\n        const directiveDef = getComponentDef(type) || getDirectiveDef(type);\n        if (directiveDef !== null) {\n            return {\n                schemas: null,\n                compilation: {\n                    directives: new Set(),\n                    pipes: new Set(),\n                },\n                exported: {\n                    directives: new Set([type]),\n                    pipes: new Set(),\n                },\n            };\n        }\n        const pipeDef = getPipeDef$1(type);\n        if (pipeDef !== null) {\n            return {\n                schemas: null,\n                compilation: {\n                    directives: new Set(),\n                    pipes: new Set(),\n                },\n                exported: {\n                    directives: new Set(),\n                    pipes: new Set([type]),\n                },\n            };\n        }\n    }\n    // TODO: change the error message to be more user-facing and take standalone into account\n    throw new Error(`${type.name} does not have a module def (ɵmod property)`);\n}\n/**\n * Compute the pair of transitive scopes (compilation scope and exported scope) for a given module.\n *\n * This operation is memoized and the result is cached on the module's definition. This function can\n * be called on modules with components that have not fully compiled yet, but the result should not\n * be used until they have.\n *\n * @param moduleType module that transitive scope should be calculated for.\n */\nfunction transitiveScopesForNgModule(moduleType) {\n    const def = getNgModuleDef(moduleType, true);\n    if (def.transitiveCompileScopes !== null) {\n        return def.transitiveCompileScopes;\n    }\n    const scopes = {\n        schemas: def.schemas || null,\n        compilation: {\n            directives: new Set(),\n            pipes: new Set(),\n        },\n        exported: {\n            directives: new Set(),\n            pipes: new Set(),\n        },\n    };\n    maybeUnwrapFn(def.imports).forEach((imported) => {\n        // When this module imports another, the imported module's exported directives and pipes are\n        // added to the compilation scope of this module.\n        const importedScope = transitiveScopesFor(imported);\n        importedScope.exported.directives.forEach(entry => scopes.compilation.directives.add(entry));\n        importedScope.exported.pipes.forEach(entry => scopes.compilation.pipes.add(entry));\n    });\n    maybeUnwrapFn(def.declarations).forEach(declared => {\n        const declaredWithDefs = declared;\n        if (getPipeDef$1(declaredWithDefs)) {\n            scopes.compilation.pipes.add(declared);\n        }\n        else {\n            // Either declared has a ɵcmp or ɵdir, or it's a component which hasn't\n            // had its template compiled yet. In either case, it gets added to the compilation's\n            // directives.\n            scopes.compilation.directives.add(declared);\n        }\n    });\n    maybeUnwrapFn(def.exports).forEach((exported) => {\n        const exportedType = exported;\n        // Either the type is a module, a pipe, or a component/directive (which may not have a\n        // ɵcmp as it might be compiled asynchronously).\n        if (isNgModule(exportedType)) {\n            // When this module exports another, the exported module's exported directives and pipes are\n            // added to both the compilation and exported scopes of this module.\n            const exportedScope = transitiveScopesFor(exportedType);\n            exportedScope.exported.directives.forEach(entry => {\n                scopes.compilation.directives.add(entry);\n                scopes.exported.directives.add(entry);\n            });\n            exportedScope.exported.pipes.forEach(entry => {\n                scopes.compilation.pipes.add(entry);\n                scopes.exported.pipes.add(entry);\n            });\n        }\n        else if (getPipeDef$1(exportedType)) {\n            scopes.exported.pipes.add(exportedType);\n        }\n        else {\n            scopes.exported.directives.add(exportedType);\n        }\n    });\n    def.transitiveCompileScopes = scopes;\n    return scopes;\n}\nfunction expandModuleWithProviders(value) {\n    if (isModuleWithProviders(value)) {\n        return value.ngModule;\n    }\n    return value;\n}\n\n/**\n * Keep track of the compilation depth to avoid reentrancy issues during JIT compilation. This\n * matters in the following scenario:\n *\n * Consider a component 'A' that extends component 'B', both declared in module 'M'. During\n * the compilation of 'A' the definition of 'B' is requested to capture the inheritance chain,\n * potentially triggering compilation of 'B'. If this nested compilation were to trigger\n * `flushModuleScopingQueueAsMuchAsPossible` it may happen that module 'M' is still pending in the\n * queue, resulting in 'A' and 'B' to be patched with the NgModule scope. As the compilation of\n * 'A' is still in progress, this would introduce a circular dependency on its compilation. To avoid\n * this issue, the module scope queue is only flushed for compilations at the depth 0, to ensure\n * all compilations have finished.\n */\nlet compilationDepth = 0;\n/**\n * Compile an Angular component according to its decorator metadata, and patch the resulting\n * component def (ɵcmp) onto the component type.\n *\n * Compilation may be asynchronous (due to the need to resolve URLs for the component template or\n * other resources, for example). In the event that compilation is not immediate, `compileComponent`\n * will enqueue resource resolution into a global queue and will fail to return the `ɵcmp`\n * until the global queue has been resolved with a call to `resolveComponentResources`.\n */\nfunction compileComponent(type, metadata) {\n    // Initialize ngDevMode. This must be the first statement in compileComponent.\n    // See the `initNgDevMode` docstring for more information.\n    (typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode();\n    let ngComponentDef = null;\n    // Metadata may have resources which need to be resolved.\n    maybeQueueResolutionOfComponentResources(type, metadata);\n    // Note that we're using the same function as `Directive`, because that's only subset of metadata\n    // that we need to create the ngFactoryDef. We're avoiding using the component metadata\n    // because we'd have to resolve the asynchronous templates.\n    addDirectiveFactoryDef(type, metadata);\n    Object.defineProperty(type, NG_COMP_DEF, {\n        get: () => {\n            if (ngComponentDef === null) {\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'component', type: type });\n                if (componentNeedsResolution(metadata)) {\n                    const error = [`Component '${type.name}' is not resolved:`];\n                    if (metadata.templateUrl) {\n                        error.push(` - templateUrl: ${metadata.templateUrl}`);\n                    }\n                    if (metadata.styleUrls && metadata.styleUrls.length) {\n                        error.push(` - styleUrls: ${JSON.stringify(metadata.styleUrls)}`);\n                    }\n                    error.push(`Did you run and wait for 'resolveComponentResources()'?`);\n                    throw new Error(error.join('\\n'));\n                }\n                // This const was called `jitOptions` previously but had to be renamed to `options` because\n                // of a bug with Terser that caused optimized JIT builds to throw a `ReferenceError`.\n                // This bug was investigated in https://github.com/angular/angular-cli/issues/17264.\n                // We should not rename it back until https://github.com/terser/terser/issues/615 is fixed.\n                const options = getJitOptions();\n                let preserveWhitespaces = metadata.preserveWhitespaces;\n                if (preserveWhitespaces === undefined) {\n                    if (options !== null && options.preserveWhitespaces !== undefined) {\n                        preserveWhitespaces = options.preserveWhitespaces;\n                    }\n                    else {\n                        preserveWhitespaces = false;\n                    }\n                }\n                let encapsulation = metadata.encapsulation;\n                if (encapsulation === undefined) {\n                    if (options !== null && options.defaultEncapsulation !== undefined) {\n                        encapsulation = options.defaultEncapsulation;\n                    }\n                    else {\n                        encapsulation = ViewEncapsulation$1.Emulated;\n                    }\n                }\n                const templateUrl = metadata.templateUrl || `ng:///${type.name}/template.html`;\n                const meta = {\n                    ...directiveMetadata(type, metadata),\n                    typeSourceSpan: compiler.createParseSourceSpan('Component', type.name, templateUrl),\n                    template: metadata.template || '',\n                    preserveWhitespaces,\n                    styles: metadata.styles || EMPTY_ARRAY,\n                    animations: metadata.animations,\n                    // JIT components are always compiled against an empty set of `declarations`. Instead, the\n                    // `directiveDefs` and `pipeDefs` are updated at a later point:\n                    //  * for NgModule-based components, they're set when the NgModule which declares the\n                    //    component resolves in the module scoping queue\n                    //  * for standalone components, they're set just below, after `compileComponent`.\n                    declarations: [],\n                    changeDetection: metadata.changeDetection,\n                    encapsulation,\n                    interpolation: metadata.interpolation,\n                    viewProviders: metadata.viewProviders || null,\n                };\n                compilationDepth++;\n                try {\n                    if (meta.usesInheritance) {\n                        addDirectiveDefToUndecoratedParents(type);\n                    }\n                    ngComponentDef =\n                        compiler.compileComponent(angularCoreEnv, templateUrl, meta);\n                    if (metadata.standalone) {\n                        // Patch the component definition for standalone components with `directiveDefs` and\n                        // `pipeDefs` functions which lazily compute the directives/pipes available in the\n                        // standalone component. Also set `dependencies` to the lazily resolved list of imports.\n                        const imports = flatten(metadata.imports || EMPTY_ARRAY);\n                        const { directiveDefs, pipeDefs } = getStandaloneDefFunctions(type, imports);\n                        ngComponentDef.directiveDefs = directiveDefs;\n                        ngComponentDef.pipeDefs = pipeDefs;\n                        ngComponentDef.dependencies = () => imports.map(resolveForwardRef);\n                    }\n                }\n                finally {\n                    // Ensure that the compilation depth is decremented even when the compilation failed.\n                    compilationDepth--;\n                }\n                if (compilationDepth === 0) {\n                    // When NgModule decorator executed, we enqueued the module definition such that\n                    // it would only dequeue and add itself as module scope to all of its declarations,\n                    // but only if  if all of its declarations had resolved. This call runs the check\n                    // to see if any modules that are in the queue can be dequeued and add scope to\n                    // their declarations.\n                    flushModuleScopingQueueAsMuchAsPossible();\n                }\n                // If component compilation is async, then the @NgModule annotation which declares the\n                // component may execute and set an ngSelectorScope property on the component type. This\n                // allows the component to patch itself with directiveDefs from the module after it\n                // finishes compiling.\n                if (hasSelectorScope(type)) {\n                    const scopes = transitiveScopesFor(type.ngSelectorScope);\n                    patchComponentDefWithScope(ngComponentDef, scopes);\n                }\n                if (metadata.schemas) {\n                    if (metadata.standalone) {\n                        ngComponentDef.schemas = metadata.schemas;\n                    }\n                    else {\n                        throw new Error(`The 'schemas' was specified for the ${stringifyForError(type)} but is only valid on a component that is standalone.`);\n                    }\n                }\n                else if (metadata.standalone) {\n                    ngComponentDef.schemas = [];\n                }\n            }\n            return ngComponentDef;\n        },\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\nfunction getDependencyTypeForError(type) {\n    if (getComponentDef(type))\n        return 'component';\n    if (getDirectiveDef(type))\n        return 'directive';\n    if (getPipeDef$1(type))\n        return 'pipe';\n    return 'type';\n}\nfunction verifyStandaloneImport(depType, importingType) {\n    if (isForwardRef(depType)) {\n        depType = resolveForwardRef(depType);\n        if (!depType) {\n            throw new Error(`Expected forwardRef function, imported from \"${stringifyForError(importingType)}\", to return a standalone entity or NgModule but got \"${stringifyForError(depType) || depType}\".`);\n        }\n    }\n    if (getNgModuleDef(depType) == null) {\n        const def = getComponentDef(depType) || getDirectiveDef(depType) || getPipeDef$1(depType);\n        if (def != null) {\n            // if a component, directive or pipe is imported make sure that it is standalone\n            if (!def.standalone) {\n                throw new Error(`The \"${stringifyForError(depType)}\" ${getDependencyTypeForError(depType)}, imported from \"${stringifyForError(importingType)}\", is not standalone. Did you forget to add the standalone: true flag?`);\n            }\n        }\n        else {\n            // it can be either a module with provider or an unknown (not annotated) type\n            if (isModuleWithProviders(depType)) {\n                throw new Error(`A module with providers was imported from \"${stringifyForError(importingType)}\". Modules with providers are not supported in standalone components imports.`);\n            }\n            else {\n                throw new Error(`The \"${stringifyForError(depType)}\" type, imported from \"${stringifyForError(importingType)}\", must be a standalone component / directive / pipe or an NgModule. Did you forget to add the required @Component / @Directive / @Pipe or @NgModule annotation?`);\n            }\n        }\n    }\n}\n/**\n * Build memoized `directiveDefs` and `pipeDefs` functions for the component definition of a\n * standalone component, which process `imports` and filter out directives and pipes. The use of\n * memoized functions here allows for the delayed resolution of any `forwardRef`s present in the\n * component's `imports`.\n */\nfunction getStandaloneDefFunctions(type, imports) {\n    let cachedDirectiveDefs = null;\n    let cachedPipeDefs = null;\n    const directiveDefs = () => {\n        if (cachedDirectiveDefs === null) {\n            // Standalone components are always able to self-reference, so include the component's own\n            // definition in its `directiveDefs`.\n            cachedDirectiveDefs = [getComponentDef(type)];\n            const seen = new Set([type]);\n            for (const rawDep of imports) {\n                ngDevMode && verifyStandaloneImport(rawDep, type);\n                const dep = resolveForwardRef(rawDep);\n                if (seen.has(dep)) {\n                    continue;\n                }\n                seen.add(dep);\n                if (!!getNgModuleDef(dep)) {\n                    const scope = transitiveScopesFor(dep);\n                    for (const dir of scope.exported.directives) {\n                        const def = getComponentDef(dir) || getDirectiveDef(dir);\n                        if (def && !seen.has(dir)) {\n                            seen.add(dir);\n                            cachedDirectiveDefs.push(def);\n                        }\n                    }\n                }\n                else {\n                    const def = getComponentDef(dep) || getDirectiveDef(dep);\n                    if (def) {\n                        cachedDirectiveDefs.push(def);\n                    }\n                }\n            }\n        }\n        return cachedDirectiveDefs;\n    };\n    const pipeDefs = () => {\n        if (cachedPipeDefs === null) {\n            cachedPipeDefs = [];\n            const seen = new Set();\n            for (const rawDep of imports) {\n                const dep = resolveForwardRef(rawDep);\n                if (seen.has(dep)) {\n                    continue;\n                }\n                seen.add(dep);\n                if (!!getNgModuleDef(dep)) {\n                    const scope = transitiveScopesFor(dep);\n                    for (const pipe of scope.exported.pipes) {\n                        const def = getPipeDef$1(pipe);\n                        if (def && !seen.has(pipe)) {\n                            seen.add(pipe);\n                            cachedPipeDefs.push(def);\n                        }\n                    }\n                }\n                else {\n                    const def = getPipeDef$1(dep);\n                    if (def) {\n                        cachedPipeDefs.push(def);\n                    }\n                }\n            }\n        }\n        return cachedPipeDefs;\n    };\n    return {\n        directiveDefs,\n        pipeDefs,\n    };\n}\nfunction hasSelectorScope(component) {\n    return component.ngSelectorScope !== undefined;\n}\n/**\n * Compile an Angular directive according to its decorator metadata, and patch the resulting\n * directive def onto the component type.\n *\n * In the event that compilation is not immediate, `compileDirective` will return a `Promise` which\n * will resolve when compilation completes and the directive becomes usable.\n */\nfunction compileDirective(type, directive) {\n    let ngDirectiveDef = null;\n    addDirectiveFactoryDef(type, directive || {});\n    Object.defineProperty(type, NG_DIR_DEF, {\n        get: () => {\n            if (ngDirectiveDef === null) {\n                // `directive` can be null in the case of abstract directives as a base class\n                // that use `@Directive()` with no selector. In that case, pass empty object to the\n                // `directiveMetadata` function instead of null.\n                const meta = getDirectiveMetadata(type, directive || {});\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'directive', type });\n                ngDirectiveDef =\n                    compiler.compileDirective(angularCoreEnv, meta.sourceMapUrl, meta.metadata);\n            }\n            return ngDirectiveDef;\n        },\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\nfunction getDirectiveMetadata(type, metadata) {\n    const name = type && type.name;\n    const sourceMapUrl = `ng:///${name}/ɵdir.js`;\n    const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'directive', type });\n    const facade = directiveMetadata(type, metadata);\n    facade.typeSourceSpan = compiler.createParseSourceSpan('Directive', name, sourceMapUrl);\n    if (facade.usesInheritance) {\n        addDirectiveDefToUndecoratedParents(type);\n    }\n    return { metadata: facade, sourceMapUrl };\n}\nfunction addDirectiveFactoryDef(type, metadata) {\n    let ngFactoryDef = null;\n    Object.defineProperty(type, NG_FACTORY_DEF, {\n        get: () => {\n            if (ngFactoryDef === null) {\n                const meta = getDirectiveMetadata(type, metadata);\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'directive', type });\n                ngFactoryDef = compiler.compileFactory(angularCoreEnv, `ng:///${type.name}/ɵfac.js`, {\n                    name: meta.metadata.name,\n                    type: meta.metadata.type,\n                    typeArgumentCount: 0,\n                    deps: reflectDependencies(type),\n                    target: compiler.FactoryTarget.Directive\n                });\n            }\n            return ngFactoryDef;\n        },\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\nfunction extendsDirectlyFromObject(type) {\n    return Object.getPrototypeOf(type.prototype) === Object.prototype;\n}\n/**\n * Extract the `R3DirectiveMetadata` for a particular directive (either a `Directive` or a\n * `Component`).\n */\nfunction directiveMetadata(type, metadata) {\n    // Reflect inputs and outputs.\n    const reflect = getReflect();\n    const propMetadata = reflect.ownPropMetadata(type);\n    return {\n        name: type.name,\n        type: type,\n        selector: metadata.selector !== undefined ? metadata.selector : null,\n        host: metadata.host || EMPTY_OBJ,\n        propMetadata: propMetadata,\n        inputs: metadata.inputs || EMPTY_ARRAY,\n        outputs: metadata.outputs || EMPTY_ARRAY,\n        queries: extractQueriesMetadata(type, propMetadata, isContentQuery),\n        lifecycle: { usesOnChanges: reflect.hasLifecycleHook(type, 'ngOnChanges') },\n        typeSourceSpan: null,\n        usesInheritance: !extendsDirectlyFromObject(type),\n        exportAs: extractExportAs(metadata.exportAs),\n        providers: metadata.providers || null,\n        viewQueries: extractQueriesMetadata(type, propMetadata, isViewQuery),\n        isStandalone: !!metadata.standalone,\n        isSignal: !!metadata.signals,\n        hostDirectives: metadata.hostDirectives?.map(directive => typeof directive === 'function' ? { directive } : directive) ||\n            null\n    };\n}\n/**\n * Adds a directive definition to all parent classes of a type that don't have an Angular decorator.\n */\nfunction addDirectiveDefToUndecoratedParents(type) {\n    const objPrototype = Object.prototype;\n    let parent = Object.getPrototypeOf(type.prototype).constructor;\n    // Go up the prototype until we hit `Object`.\n    while (parent && parent !== objPrototype) {\n        // Since inheritance works if the class was annotated already, we only need to add\n        // the def if there are no annotations and the def hasn't been created already.\n        if (!getDirectiveDef(parent) && !getComponentDef(parent) &&\n            shouldAddAbstractDirective(parent)) {\n            compileDirective(parent, null);\n        }\n        parent = Object.getPrototypeOf(parent);\n    }\n}\nfunction convertToR3QueryPredicate(selector) {\n    return typeof selector === 'string' ? splitByComma(selector) : resolveForwardRef(selector);\n}\nfunction convertToR3QueryMetadata(propertyName, ann) {\n    return {\n        propertyName: propertyName,\n        predicate: convertToR3QueryPredicate(ann.selector),\n        descendants: ann.descendants,\n        first: ann.first,\n        read: ann.read ? ann.read : null,\n        static: !!ann.static,\n        emitDistinctChangesOnly: !!ann.emitDistinctChangesOnly,\n    };\n}\nfunction extractQueriesMetadata(type, propMetadata, isQueryAnn) {\n    const queriesMeta = [];\n    for (const field in propMetadata) {\n        if (propMetadata.hasOwnProperty(field)) {\n            const annotations = propMetadata[field];\n            annotations.forEach(ann => {\n                if (isQueryAnn(ann)) {\n                    if (!ann.selector) {\n                        throw new Error(`Can't construct a query for the property \"${field}\" of ` +\n                            `\"${stringifyForError(type)}\" since the query selector wasn't defined.`);\n                    }\n                    if (annotations.some(isInputAnnotation)) {\n                        throw new Error(`Cannot combine @Input decorators with query decorators`);\n                    }\n                    queriesMeta.push(convertToR3QueryMetadata(field, ann));\n                }\n            });\n        }\n    }\n    return queriesMeta;\n}\nfunction extractExportAs(exportAs) {\n    return exportAs === undefined ? null : splitByComma(exportAs);\n}\nfunction isContentQuery(value) {\n    const name = value.ngMetadataName;\n    return name === 'ContentChild' || name === 'ContentChildren';\n}\nfunction isViewQuery(value) {\n    const name = value.ngMetadataName;\n    return name === 'ViewChild' || name === 'ViewChildren';\n}\nfunction isInputAnnotation(value) {\n    return value.ngMetadataName === 'Input';\n}\nfunction splitByComma(value) {\n    return value.split(',').map(piece => piece.trim());\n}\nconst LIFECYCLE_HOOKS = [\n    'ngOnChanges', 'ngOnInit', 'ngOnDestroy', 'ngDoCheck', 'ngAfterViewInit', 'ngAfterViewChecked',\n    'ngAfterContentInit', 'ngAfterContentChecked'\n];\nfunction shouldAddAbstractDirective(type) {\n    const reflect = getReflect();\n    if (LIFECYCLE_HOOKS.some(hookName => reflect.hasLifecycleHook(type, hookName))) {\n        return true;\n    }\n    const propMetadata = reflect.propMetadata(type);\n    for (const field in propMetadata) {\n        const annotations = propMetadata[field];\n        for (let i = 0; i < annotations.length; i++) {\n            const current = annotations[i];\n            const metadataName = current.ngMetadataName;\n            if (isInputAnnotation(current) || isContentQuery(current) || isViewQuery(current) ||\n                metadataName === 'Output' || metadataName === 'HostBinding' ||\n                metadataName === 'HostListener') {\n                return true;\n            }\n        }\n    }\n    return false;\n}\n\nfunction compilePipe(type, meta) {\n    let ngPipeDef = null;\n    let ngFactoryDef = null;\n    Object.defineProperty(type, NG_FACTORY_DEF, {\n        get: () => {\n            if (ngFactoryDef === null) {\n                const metadata = getPipeMetadata(type, meta);\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'pipe', type: metadata.type });\n                ngFactoryDef = compiler.compileFactory(angularCoreEnv, `ng:///${metadata.name}/ɵfac.js`, {\n                    name: metadata.name,\n                    type: metadata.type,\n                    typeArgumentCount: 0,\n                    deps: reflectDependencies(type),\n                    target: compiler.FactoryTarget.Pipe\n                });\n            }\n            return ngFactoryDef;\n        },\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n    Object.defineProperty(type, NG_PIPE_DEF, {\n        get: () => {\n            if (ngPipeDef === null) {\n                const metadata = getPipeMetadata(type, meta);\n                const compiler = getCompilerFacade({ usage: 0 /* JitCompilerUsage.Decorator */, kind: 'pipe', type: metadata.type });\n                ngPipeDef =\n                    compiler.compilePipe(angularCoreEnv, `ng:///${metadata.name}/ɵpipe.js`, metadata);\n            }\n            return ngPipeDef;\n        },\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\nfunction getPipeMetadata(type, meta) {\n    return {\n        type: type,\n        name: type.name,\n        pipeName: meta.name,\n        pure: meta.pure !== undefined ? meta.pure : true,\n        isStandalone: !!meta.standalone,\n    };\n}\n\n/**\n * Type of the Directive metadata.\n *\n * @publicApi\n */\nconst Directive = makeDecorator('Directive', (dir = {}) => dir, undefined, undefined, (type, meta) => compileDirective(type, meta));\n/**\n * Component decorator and metadata.\n *\n * @Annotation\n * @publicApi\n */\nconst Component = makeDecorator('Component', (c = {}) => ({ changeDetection: ChangeDetectionStrategy.Default, ...c }), Directive, undefined, (type, meta) => compileComponent(type, meta));\n/**\n * @Annotation\n * @publicApi\n */\nconst Pipe = makeDecorator('Pipe', (p) => ({ pure: true, ...p }), undefined, undefined, (type, meta) => compilePipe(type, meta));\n/**\n * @Annotation\n * @publicApi\n */\nconst Input = makePropDecorator('Input', (arg) => {\n    if (!arg) {\n        return {};\n    }\n    return typeof arg === 'string' ? { alias: arg } : arg;\n});\n/**\n * @Annotation\n * @publicApi\n */\nconst Output = makePropDecorator('Output', (alias) => ({ alias }));\n/**\n * @Annotation\n * @publicApi\n */\nconst HostBinding = makePropDecorator('HostBinding', (hostPropertyName) => ({ hostPropertyName }));\n/**\n * Decorator that binds a DOM event to a host listener and supplies configuration metadata.\n * Angular invokes the supplied handler method when the host element emits the specified event,\n * and updates the bound element with the result.\n *\n * If the handler method returns false, applies `preventDefault` on the bound element.\n *\n * @usageNotes\n *\n * The following example declares a directive\n * that attaches a click listener to a button and counts clicks.\n *\n * ```ts\n * @Directive({selector: 'button[counting]'})\n * class CountClicks {\n *   numberOfClicks = 0;\n *\n *   @HostListener('click', ['$event.target'])\n *   onClick(btn) {\n *     console.log('button', btn, 'number of clicks:', this.numberOfClicks++);\n *   }\n * }\n *\n * @Component({\n *   selector: 'app',\n *   template: '<button counting>Increment</button>',\n * })\n * class App {}\n *\n * ```\n *\n * The following example registers another DOM event handler that listens for `Enter` key-press\n * events on the global `window`.\n * ``` ts\n * import { HostListener, Component } from \"@angular/core\";\n *\n * @Component({\n *   selector: 'app',\n *   template: `<h1>Hello, you have pressed enter {{counter}} number of times!</h1> Press enter key\n * to increment the counter.\n *   <button (click)=\"resetCounter()\">Reset Counter</button>`\n * })\n * class AppComponent {\n *   counter = 0;\n *   @HostListener('window:keydown.enter', ['$event'])\n *   handleKeyDown(event: KeyboardEvent) {\n *     this.counter++;\n *   }\n *   resetCounter() {\n *     this.counter = 0;\n *   }\n * }\n * ```\n * The list of valid key names for `keydown` and `keyup` events\n * can be found here:\n * https://www.w3.org/TR/DOM-Level-3-Events-key/#named-key-attribute-values\n *\n * Note that keys can also be combined, e.g. `@HostListener('keydown.shift.a')`.\n *\n * The global target names that can be used to prefix an event name are\n * `document:`, `window:` and `body:`.\n *\n * @Annotation\n * @publicApi\n */\nconst HostListener = makePropDecorator('HostListener', (eventName, args) => ({ eventName, args }));\n\n/**\n * @Annotation\n */\nconst NgModule = makeDecorator('NgModule', (ngModule) => ngModule, undefined, undefined, \n/**\n * Decorator that marks the following class as an NgModule, and supplies\n * configuration metadata for it.\n *\n * * The `declarations` option configures the compiler\n * with information about what belongs to the NgModule.\n * * The `providers` options configures the NgModule's injector to provide\n * dependencies the NgModule members.\n * * The `imports` and `exports` options bring in members from other modules, and make\n * this module's members available to others.\n */\n(type, meta) => compileNgModule(type, meta));\n\n/**\n * This indirection is needed to free up Component, etc symbols in the public API\n * to be used by the decorator versions of these annotations.\n */\n\n/*\n * This file exists to support compilation of @angular/core in Ivy mode.\n *\n * When the Angular compiler processes a compilation unit, it normally writes imports to\n * @angular/core. When compiling the core package itself this strategy isn't usable. Instead, the\n * compiler writes imports to this file.\n *\n * Only a subset of such imports are supported - core is not allowed to declare components or pipes.\n * A check in ngtsc's `R3SymbolsImportRewriter` validates this condition. The rewriter is only used\n * when compiling @angular/core and is responsible for translating an external name (prefixed with\n * ɵ) to the internal symbol name as exported below.\n *\n * The below symbols are used for @Injectable and @NgModule compilation.\n */\n/**\n * The existence of this constant (in this particular file) informs the Angular compiler that the\n * current program is actually @angular/core, which needs to be compiled specially.\n */\nconst ITS_JUST_ANGULAR = true;\n\n/**\n * A [DI token](guide/glossary#di-token \"DI token definition\") that you can use to provide\n * one or more initialization functions.\n *\n * The provided functions are injected at application startup and executed during\n * app initialization. If any of these functions returns a Promise or an Observable, initialization\n * does not complete until the Promise is resolved or the Observable is completed.\n *\n * You can, for example, create a factory function that loads language data\n * or an external configuration, and provide that function to the `APP_INITIALIZER` token.\n * The function is executed during the application bootstrap process,\n * and the needed data is available on startup.\n *\n * @see {@link ApplicationInitStatus}\n *\n * @usageNotes\n *\n * The following example illustrates how to configure a multi-provider using `APP_INITIALIZER` token\n * and a function returning a promise.\n * ### Example with NgModule-based application\n * ```\n *  function initializeApp(): Promise<any> {\n *    return new Promise((resolve, reject) => {\n *      // Do some asynchronous stuff\n *      resolve();\n *    });\n *  }\n *\n *  @NgModule({\n *   imports: [BrowserModule],\n *   declarations: [AppComponent],\n *   bootstrap: [AppComponent],\n *   providers: [{\n *     provide: APP_INITIALIZER,\n *     useFactory: () => initializeApp,\n *     multi: true\n *    }]\n *   })\n *  export class AppModule {}\n * ```\n *\n * ### Example with standalone application\n * ```\n * export function initializeApp(http: HttpClient) {\n *   return (): Promise<any> =>\n *     firstValueFrom(\n *       http\n *         .get(\"https://someUrl.com/api/user\")\n *         .pipe(tap(user => { ... }))\n *     );\n * }\n *\n * bootstrapApplication(App, {\n *   providers: [\n *     provideHttpClient(),\n *     {\n *       provide: APP_INITIALIZER,\n *       useFactory: initializeApp,\n *       multi: true,\n *       deps: [HttpClient],\n *     },\n *   ],\n * });\n\n * ```\n *\n *\n * It's also possible to configure a multi-provider using `APP_INITIALIZER` token and a function\n * returning an observable, see an example below. Note: the `HttpClient` in this example is used for\n * demo purposes to illustrate how the factory function can work with other providers available\n * through DI.\n *\n * ### Example with NgModule-based application\n * ```\n *  function initializeAppFactory(httpClient: HttpClient): () => Observable<any> {\n *   return () => httpClient.get(\"https://someUrl.com/api/user\")\n *     .pipe(\n *        tap(user => { ... })\n *     );\n *  }\n *\n *  @NgModule({\n *    imports: [BrowserModule, HttpClientModule],\n *    declarations: [AppComponent],\n *    bootstrap: [AppComponent],\n *    providers: [{\n *      provide: APP_INITIALIZER,\n *      useFactory: initializeAppFactory,\n *      deps: [HttpClient],\n *      multi: true\n *    }]\n *  })\n *  export class AppModule {}\n * ```\n *\n * ### Example with standalone application\n * ```\n *  function initializeAppFactory(httpClient: HttpClient): () => Observable<any> {\n *   return () => httpClient.get(\"https://someUrl.com/api/user\")\n *     .pipe(\n *        tap(user => { ... })\n *     );\n *  }\n *\n * bootstrapApplication(App, {\n *   providers: [\n *     provideHttpClient(),\n *     {\n *       provide: APP_INITIALIZER,\n *       useFactory: initializeApp,\n *       multi: true,\n *       deps: [HttpClient],\n *     },\n *   ],\n * });\n * ```\n *\n * @publicApi\n */\nconst APP_INITIALIZER = new InjectionToken('Application Initializer');\n/**\n * A class that reflects the state of running {@link APP_INITIALIZER} functions.\n *\n * @publicApi\n */\nclass ApplicationInitStatus {\n    constructor() {\n        this.initialized = false;\n        this.done = false;\n        this.donePromise = new Promise((res, rej) => {\n            this.resolve = res;\n            this.reject = rej;\n        });\n        this.appInits = inject(APP_INITIALIZER, { optional: true }) ?? [];\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && !Array.isArray(this.appInits)) {\n            throw new RuntimeError(-209 /* RuntimeErrorCode.INVALID_MULTI_PROVIDER */, 'Unexpected type of the `APP_INITIALIZER` token value ' +\n                `(expected an array, but got ${typeof this.appInits}). ` +\n                'Please check that the `APP_INITIALIZER` token is configured as a ' +\n                '`multi: true` provider.');\n        }\n    }\n    /** @internal */\n    runInitializers() {\n        if (this.initialized) {\n            return;\n        }\n        const asyncInitPromises = [];\n        for (const appInits of this.appInits) {\n            const initResult = appInits();\n            if (isPromise(initResult)) {\n                asyncInitPromises.push(initResult);\n            }\n            else if (isSubscribable(initResult)) {\n                const observableAsPromise = new Promise((resolve, reject) => {\n                    initResult.subscribe({ complete: resolve, error: reject });\n                });\n                asyncInitPromises.push(observableAsPromise);\n            }\n        }\n        const complete = () => {\n            // @ts-expect-error overwriting a readonly\n            this.done = true;\n            this.resolve();\n        };\n        Promise.all(asyncInitPromises)\n            .then(() => {\n            complete();\n        })\n            .catch(e => {\n            this.reject(e);\n        });\n        if (asyncInitPromises.length === 0) {\n            complete();\n        }\n        this.initialized = true;\n    }\n    static { this.ɵfac = function ApplicationInitStatus_Factory(t) { return new (t || ApplicationInitStatus)(); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: ApplicationInitStatus, factory: ApplicationInitStatus.ɵfac, providedIn: 'root' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(ApplicationInitStatus, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return []; }, null); })();\n\nclass Console {\n    log(message) {\n        // tslint:disable-next-line:no-console\n        console.log(message);\n    }\n    // Note: for reporting errors use `DOM.logError()` as it is platform specific\n    warn(message) {\n        // tslint:disable-next-line:no-console\n        console.warn(message);\n    }\n    static { this.ɵfac = function Console_Factory(t) { return new (t || Console)(); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: Console, factory: Console.ɵfac, providedIn: 'platform' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(Console, [{\n        type: Injectable,\n        args: [{ providedIn: 'platform' }]\n    }], null, null); })();\n\n/**\n * Work out the locale from the potential global properties.\n *\n * * Closure Compiler: use `goog.LOCALE`.\n * * Ivy enabled: use `$localize.locale`\n */\nfunction getGlobalLocale() {\n    if (typeof ngI18nClosureMode !== 'undefined' && ngI18nClosureMode &&\n        typeof goog !== 'undefined' && goog.LOCALE !== 'en') {\n        // * The default `goog.LOCALE` value is `en`, while Angular used `en-US`.\n        // * In order to preserve backwards compatibility, we use Angular default value over\n        //   Closure Compiler's one.\n        return goog.LOCALE;\n    }\n    else {\n        // KEEP `typeof $localize !== 'undefined' && $localize.locale` IN SYNC WITH THE LOCALIZE\n        // COMPILE-TIME INLINER.\n        //\n        // * During compile time inlining of translations the expression will be replaced\n        //   with a string literal that is the current locale. Other forms of this expression are not\n        //   guaranteed to be replaced.\n        //\n        // * During runtime translation evaluation, the developer is required to set `$localize.locale`\n        //   if required, or just to provide their own `LOCALE_ID` provider.\n        return (typeof $localize !== 'undefined' && $localize.locale) || DEFAULT_LOCALE_ID;\n    }\n}\n/**\n * Provide this token to set the locale of your application.\n * It is used for i18n extraction, by i18n pipes (DatePipe, I18nPluralPipe, CurrencyPipe,\n * DecimalPipe and PercentPipe) and by ICU expressions.\n *\n * See the [i18n guide](guide/i18n-common-locale-id) for more information.\n *\n * @usageNotes\n * ### Example\n *\n * ```typescript\n * import { LOCALE_ID } from '@angular/core';\n * import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: LOCALE_ID, useValue: 'en-US' }]\n * });\n * ```\n *\n * @publicApi\n */\nconst LOCALE_ID = new InjectionToken('LocaleId', {\n    providedIn: 'root',\n    factory: () => inject(LOCALE_ID, InjectFlags.Optional | InjectFlags.SkipSelf) || getGlobalLocale(),\n});\n/**\n * Provide this token to set the default currency code your application uses for\n * CurrencyPipe when there is no currency code passed into it. This is only used by\n * CurrencyPipe and has no relation to locale currency. Defaults to USD if not configured.\n *\n * See the [i18n guide](guide/i18n-common-locale-id) for more information.\n *\n * <div class=\"alert is-helpful\">\n *\n * **Deprecation notice:**\n *\n * The default currency code is currently always `USD` but this is deprecated from v9.\n *\n * **In v10 the default currency code will be taken from the current locale.**\n *\n * If you need the previous behavior then set it by creating a `DEFAULT_CURRENCY_CODE` provider in\n * your application `NgModule`:\n *\n * ```ts\n * {provide: DEFAULT_CURRENCY_CODE, useValue: 'USD'}\n * ```\n *\n * </div>\n *\n * @usageNotes\n * ### Example\n *\n * ```typescript\n * import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: DEFAULT_CURRENCY_CODE, useValue: 'EUR' }]\n * });\n * ```\n *\n * @publicApi\n */\nconst DEFAULT_CURRENCY_CODE = new InjectionToken('DefaultCurrencyCode', {\n    providedIn: 'root',\n    factory: () => USD_CURRENCY_CODE,\n});\n/**\n * Use this token at bootstrap to provide the content of your translation file (`xtb`,\n * `xlf` or `xlf2`) when you want to translate your application in another language.\n *\n * See the [i18n guide](guide/i18n-common-merge) for more information.\n *\n * @usageNotes\n * ### Example\n *\n * ```typescript\n * import { TRANSLATIONS } from '@angular/core';\n * import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * // content of your translation file\n * const translations = '....';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: TRANSLATIONS, useValue: translations }]\n * });\n * ```\n *\n * @publicApi\n */\nconst TRANSLATIONS = new InjectionToken('Translations');\n/**\n * Provide this token at bootstrap to set the format of your {@link TRANSLATIONS}: `xtb`,\n * `xlf` or `xlf2`.\n *\n * See the [i18n guide](guide/i18n-common-merge) for more information.\n *\n * @usageNotes\n * ### Example\n *\n * ```typescript\n * import { TRANSLATIONS_FORMAT } from '@angular/core';\n * import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: TRANSLATIONS_FORMAT, useValue: 'xlf' }]\n * });\n * ```\n *\n * @publicApi\n */\nconst TRANSLATIONS_FORMAT = new InjectionToken('TranslationsFormat');\n/**\n * Use this enum at bootstrap as an option of `bootstrapModule` to define the strategy\n * that the compiler should use in case of missing translations:\n * - Error: throw if you have missing translations.\n * - Warning (default): show a warning in the console and/or shell.\n * - Ignore: do nothing.\n *\n * See the [i18n guide](guide/i18n-common-merge#report-missing-translations) for more information.\n *\n * @usageNotes\n * ### Example\n * ```typescript\n * import { MissingTranslationStrategy } from '@angular/core';\n * import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   missingTranslation: MissingTranslationStrategy.Error\n * });\n * ```\n *\n * @publicApi\n */\nvar MissingTranslationStrategy;\n(function (MissingTranslationStrategy) {\n    MissingTranslationStrategy[MissingTranslationStrategy[\"Error\"] = 0] = \"Error\";\n    MissingTranslationStrategy[MissingTranslationStrategy[\"Warning\"] = 1] = \"Warning\";\n    MissingTranslationStrategy[MissingTranslationStrategy[\"Ignore\"] = 2] = \"Ignore\";\n})(MissingTranslationStrategy || (MissingTranslationStrategy = {}));\n\n/**\n * *Internal* service that keeps track of pending tasks happening in the system\n * during the initial rendering. No tasks are tracked after an initial\n * rendering.\n *\n * This information is needed to make sure that the serialization on the server\n * is delayed until all tasks in the queue (such as an initial navigation or a\n * pending HTTP request) are completed.\n */\nclass InitialRenderPendingTasks {\n    constructor() {\n        this.taskId = 0;\n        this.pendingTasks = new Set();\n        this.hasPendingTasks = new BehaviorSubject(false);\n    }\n    add() {\n        this.hasPendingTasks.next(true);\n        const taskId = this.taskId++;\n        this.pendingTasks.add(taskId);\n        return taskId;\n    }\n    remove(taskId) {\n        this.pendingTasks.delete(taskId);\n        if (this.pendingTasks.size === 0) {\n            this.hasPendingTasks.next(false);\n        }\n    }\n    ngOnDestroy() {\n        this.pendingTasks.clear();\n        this.hasPendingTasks.next(false);\n    }\n    static { this.ɵfac = function InitialRenderPendingTasks_Factory(t) { return new (t || InitialRenderPendingTasks)(); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: InitialRenderPendingTasks, factory: InitialRenderPendingTasks.ɵfac, providedIn: 'root' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(InitialRenderPendingTasks, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], null, null); })();\n\n/**\n * Combination of NgModuleFactory and ComponentFactories.\n *\n * @publicApi\n *\n * @deprecated\n * Ivy JIT mode doesn't require accessing this symbol.\n * See [JIT API changes due to ViewEngine deprecation](guide/deprecations#jit-api-changes) for\n * additional context.\n */\nclass ModuleWithComponentFactories {\n    constructor(ngModuleFactory, componentFactories) {\n        this.ngModuleFactory = ngModuleFactory;\n        this.componentFactories = componentFactories;\n    }\n}\n/**\n * Low-level service for running the angular compiler during runtime\n * to create {@link ComponentFactory}s, which\n * can later be used to create and render a Component instance.\n *\n * Each `@NgModule` provides an own `Compiler` to its injector,\n * that will use the directives/pipes of the ng module for compilation\n * of components.\n *\n * @publicApi\n *\n * @deprecated\n * Ivy JIT mode doesn't require accessing this symbol.\n * See [JIT API changes due to ViewEngine deprecation](guide/deprecations#jit-api-changes) for\n * additional context.\n */\nclass Compiler {\n    /**\n     * Compiles the given NgModule and all of its components. All templates of the components\n     * have to be inlined.\n     */\n    compileModuleSync(moduleType) {\n        return new NgModuleFactory(moduleType);\n    }\n    /**\n     * Compiles the given NgModule and all of its components\n     */\n    compileModuleAsync(moduleType) {\n        return Promise.resolve(this.compileModuleSync(moduleType));\n    }\n    /**\n     * Same as {@link #compileModuleSync} but also creates ComponentFactories for all components.\n     */\n    compileModuleAndAllComponentsSync(moduleType) {\n        const ngModuleFactory = this.compileModuleSync(moduleType);\n        const moduleDef = getNgModuleDef(moduleType);\n        const componentFactories = maybeUnwrapFn(moduleDef.declarations)\n            .reduce((factories, declaration) => {\n            const componentDef = getComponentDef(declaration);\n            componentDef && factories.push(new ComponentFactory(componentDef));\n            return factories;\n        }, []);\n        return new ModuleWithComponentFactories(ngModuleFactory, componentFactories);\n    }\n    /**\n     * Same as {@link #compileModuleAsync} but also creates ComponentFactories for all components.\n     */\n    compileModuleAndAllComponentsAsync(moduleType) {\n        return Promise.resolve(this.compileModuleAndAllComponentsSync(moduleType));\n    }\n    /**\n     * Clears all caches.\n     */\n    clearCache() { }\n    /**\n     * Clears the cache for the given component/ngModule.\n     */\n    clearCacheFor(type) { }\n    /**\n     * Returns the id for a given NgModule, if one is defined and known to the compiler.\n     */\n    getModuleId(moduleType) {\n        return undefined;\n    }\n    static { this.ɵfac = function Compiler_Factory(t) { return new (t || Compiler)(); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: Compiler, factory: Compiler.ɵfac, providedIn: 'root' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(Compiler, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], null, null); })();\n/**\n * Token to provide CompilerOptions in the platform injector.\n *\n * @publicApi\n */\nconst COMPILER_OPTIONS = new InjectionToken('compilerOptions');\n/**\n * A factory for creating a Compiler\n *\n * @publicApi\n *\n * @deprecated\n * Ivy JIT mode doesn't require accessing this symbol.\n * See [JIT API changes due to ViewEngine deprecation](guide/deprecations#jit-api-changes) for\n * additional context.\n */\nclass CompilerFactory {\n}\n\n/**\n * These are the data structures that our framework injector profiler will fill with data in order\n * to support DI debugging APIs.\n *\n * resolverToTokenToDependencies: Maps an injector to a Map of tokens to an Array of\n * dependencies. Injector -> Token -> Dependencies This is used to support the\n * getDependenciesFromInjectable API, which takes in an injector and a token and returns it's\n * dependencies.\n *\n * resolverToProviders: Maps a DI resolver (an Injector or an LView) to the providers configured\n * within it This is used to support the getInjectorProviders API, which takes in an injector and\n * returns the providers that it was configured with.\n *\n * standaloneInjectorToComponent: Maps the injector of a standalone component to the standalone\n * component that it is associated with. Used in the getInjectorProviders API, specificially in the\n * discovery of import paths for each provider. This is necessary because the imports array of a\n * standalone component is processed and configured in its standalone injector, but exists within\n * the component's definition. Because getInjectorProviders takes in an injector, if that injector\n * is the injector of a standalone component, we need to be able to discover the place where the\n * imports array is located (the component) in order to flatten the imports array within it to\n * discover all of it's providers.\n *\n *\n * All of these data structures are instantiated with WeakMaps. This will ensure that the presence\n * of any object in the keys of these maps does not prevent the garbage collector from collecting\n * those objects. Because of this property of WeakMaps, these data structures will never be the\n * source of a memory leak.\n *\n * An example of this advantage: When components are destroyed, we don't need to do\n * any additional work to remove that component from our mappings.\n *\n */\nclass DIDebugData {\n    constructor() {\n        this.resolverToTokenToDependencies = new WeakMap();\n        this.resolverToProviders = new WeakMap();\n        this.standaloneInjectorToComponent = new WeakMap();\n    }\n    reset() {\n        this.resolverToTokenToDependencies =\n            new WeakMap();\n        this.resolverToProviders = new WeakMap();\n        this.standaloneInjectorToComponent = new WeakMap();\n    }\n}\nlet frameworkDIDebugData = new DIDebugData();\nfunction getFrameworkDIDebugData() {\n    return frameworkDIDebugData;\n}\n/**\n * Initalize default handling of injector events. This handling parses events\n * as they are emitted and constructs the data structures necessary to support\n * some of debug APIs.\n *\n * See handleInjectEvent, handleCreateEvent and handleProviderConfiguredEvent\n * for descriptions of each handler\n *\n * Supported APIs:\n *               - getDependenciesFromInjectable\n *               - getInjectorProviders\n */\nfunction setupFrameworkInjectorProfiler() {\n    frameworkDIDebugData.reset();\n    setInjectorProfiler((injectorProfilerEvent) => handleInjectorProfilerEvent(injectorProfilerEvent));\n}\nfunction handleInjectorProfilerEvent(injectorProfilerEvent) {\n    const { context, type } = injectorProfilerEvent;\n    if (type === 0 /* InjectorProfilerEventType.Inject */) {\n        handleInjectEvent(context, injectorProfilerEvent.service);\n    }\n    else if (type === 1 /* InjectorProfilerEventType.InstanceCreatedByInjector */) {\n        handleInstanceCreatedByInjectorEvent(context, injectorProfilerEvent.instance);\n    }\n    else if (type === 2 /* InjectorProfilerEventType.ProviderConfigured */) {\n        handleProviderConfiguredEvent(context, injectorProfilerEvent.providerRecord);\n    }\n}\n/**\n *\n * Stores the injected service in frameworkDIDebugData.resolverToTokenToDependencies\n * based on it's injector and token.\n *\n * @param context InjectorProfilerContext the injection context that this event occurred in.\n * @param data InjectedService the service associated with this inject event.\n *\n */\nfunction handleInjectEvent(context, data) {\n    const diResolver = getDIResolver(context.injector);\n    if (diResolver === null) {\n        throwError('An Inject event must be run within an injection context.');\n    }\n    const diResolverToInstantiatedToken = frameworkDIDebugData.resolverToTokenToDependencies;\n    if (!diResolverToInstantiatedToken.has(diResolver)) {\n        diResolverToInstantiatedToken.set(diResolver, new WeakMap());\n    }\n    // if token is a primitive type, ignore this event. We do this because we cannot keep track of\n    // non-primitive tokens in WeakMaps since they are not garbage collectable.\n    if (!canBeHeldWeakly(context.token)) {\n        return;\n    }\n    const instantiatedTokenToDependencies = diResolverToInstantiatedToken.get(diResolver);\n    if (!instantiatedTokenToDependencies.has(context.token)) {\n        instantiatedTokenToDependencies.set(context.token, []);\n    }\n    const { token, value, flags } = data;\n    instantiatedTokenToDependencies.get(context.token).push({ token, value, flags });\n}\n/**\n *\n * If the created instance is an instance of a standalone component, maps the injector to that\n * standalone component in frameworkDIDebugData.standaloneInjectorToComponent\n *\n * @param context InjectorProfilerContext the injection context that this event occurred in.\n * @param data InjectorCreatedInstance an object containing the instance that was just created\n *\n */\nfunction handleInstanceCreatedByInjectorEvent(context, data) {\n    const { value } = data;\n    if (getDIResolver(context.injector) === null) {\n        throwError('An InjectorCreatedInstance event must be run within an injection context.');\n    }\n    // if our value is an instance of a standalone component, map the injector of that standalone\n    // component to the component class. Otherwise, this event is a noop.\n    let standaloneComponent = undefined;\n    if (typeof value === 'object') {\n        standaloneComponent = value?.constructor;\n    }\n    if (standaloneComponent === undefined || !isStandaloneComponent(standaloneComponent)) {\n        return;\n    }\n    const environmentInjector = context.injector.get(EnvironmentInjector, null, { optional: true });\n    // Standalone components should have an environment injector. If one cannot be\n    // found we may be in a test case for low level functionality that did not explictly\n    // setup this injector. In those cases, we simply ignore this event.\n    if (environmentInjector === null) {\n        return;\n    }\n    const { standaloneInjectorToComponent } = frameworkDIDebugData;\n    // If our injector has already been mapped, as is the case\n    // when a standalone component imports another standalone component,\n    // we consider the original component (the component doing the importing)\n    // as the component connected to our injector.\n    if (standaloneInjectorToComponent.has(environmentInjector)) {\n        return;\n    }\n    // If our injector hasn't been mapped, then we map it to the standalone component\n    standaloneInjectorToComponent.set(environmentInjector, standaloneComponent);\n}\nfunction isStandaloneComponent(value) {\n    const def = getComponentDef(value);\n    return !!def?.standalone;\n}\n/**\n *\n * Stores the emitted ProviderRecords from the InjectorProfilerEventType.ProviderConfigured\n * event in frameworkDIDebugData.resolverToProviders\n *\n * @param context InjectorProfilerContext the injection context that this event occurred in.\n * @param data ProviderRecord an object containing the instance that was just created\n *\n */\nfunction handleProviderConfiguredEvent(context, data) {\n    const { resolverToProviders } = frameworkDIDebugData;\n    const diResolver = getDIResolver(context?.injector);\n    if (diResolver === null) {\n        throwError('A ProviderConfigured event must be run within an injection context.');\n    }\n    if (!resolverToProviders.has(diResolver)) {\n        resolverToProviders.set(diResolver, []);\n    }\n    resolverToProviders.get(diResolver).push(data);\n}\nfunction getDIResolver(injector) {\n    let diResolver = null;\n    if (injector === undefined) {\n        return diResolver;\n    }\n    // We use the LView as the diResolver for NodeInjectors because they\n    // do not persist anywhere in the framework. They are simply wrappers around an LView and a TNode\n    // that do persist. Because of this, we rely on the LView of the NodeInjector in order to use\n    // as a concrete key to represent this injector. If we get the same LView back later, we know\n    // we're looking at the same injector.\n    if (injector instanceof NodeInjector) {\n        diResolver = getNodeInjectorLView(injector);\n    }\n    // Other injectors can be used a keys for a map because their instances\n    // persist\n    else {\n        diResolver = injector;\n    }\n    return diResolver;\n}\n// inspired by\n// https://tc39.es/ecma262/multipage/executable-code-and-execution-contexts.html#sec-canbeheldweakly\nfunction canBeHeldWeakly(value) {\n    // we check for value !== null here because typeof null === 'object\n    return value !== null &&\n        (typeof value === 'object' || typeof value === 'function' || typeof value === 'symbol');\n}\n\n/**\n * Marks a component for check (in case of OnPush components) and synchronously\n * performs change detection on the application this component belongs to.\n *\n * @param component Component to {@link ChangeDetectorRef#markForCheck mark for check}.\n *\n * @publicApi\n * @globalApi ng\n */\nfunction applyChanges(component) {\n    ngDevMode && assertDefined(component, 'component');\n    markViewDirty(getComponentViewByInstance(component));\n    getRootComponents(component).forEach(rootComponent => detectChanges(rootComponent));\n}\n\n/**\n * Discovers the dependencies of an injectable instance. Provides DI information about each\n * dependency that the injectable was instantiated with, including where they were provided from.\n *\n * @param injector An injector instance\n * @param token a DI token that was constructed by the given injector instance\n * @returns an object that contains the created instance of token as well as all of the dependencies\n * that it was instantiated with OR undefined if the token was not created within the given\n * injector.\n */\nfunction getDependenciesFromInjectable(injector, token) {\n    // First we check to see if the token given maps to an actual instance in the injector given.\n    // We use `self: true` because we only want to look at the injector we were given.\n    // We use `optional: true` because it's possible that the token we were given was never\n    // constructed by the injector we were given.\n    const instance = injector.get(token, null, { self: true, optional: true });\n    if (instance === null) {\n        throw new Error(`Unable to determine instance of ${token} in given injector`);\n    }\n    let diResolver = injector;\n    if (injector instanceof NodeInjector) {\n        diResolver = getNodeInjectorLView(injector);\n    }\n    const { resolverToTokenToDependencies } = getFrameworkDIDebugData();\n    let dependencies = resolverToTokenToDependencies.get(diResolver)?.get?.(token) ?? [];\n    const resolutionPath = getInjectorResolutionPath(injector);\n    dependencies = dependencies.map(dep => {\n        const flags = dep.flags;\n        dep.flags = {\n            optional: (8 /* InternalInjectFlags.Optional */ & flags) === 8 /* InternalInjectFlags.Optional */,\n            host: (1 /* InternalInjectFlags.Host */ & flags) === 1 /* InternalInjectFlags.Host */,\n            self: (2 /* InternalInjectFlags.Self */ & flags) === 2 /* InternalInjectFlags.Self */,\n            skipSelf: (4 /* InternalInjectFlags.SkipSelf */ & flags) === 4 /* InternalInjectFlags.SkipSelf */,\n        };\n        for (let i = 0; i < resolutionPath.length; i++) {\n            const injectorToCheck = resolutionPath[i];\n            // if skipSelf is true we skip the first injector\n            if (i === 0 && dep.flags.skipSelf) {\n                continue;\n            }\n            // host only applies to NodeInjectors\n            if (dep.flags.host && injectorToCheck instanceof EnvironmentInjector) {\n                break;\n            }\n            const instance = injectorToCheck.get(dep.token, null, { self: true, optional: true });\n            if (instance !== null) {\n                // if host flag is true we double check that we can get the service from the first element\n                // in the resolution path by using the host flag. This is done to make sure that we've found\n                // the correct providing injector, and not a node injector that is connected to our path via\n                // a router outlet.\n                if (dep.flags.host) {\n                    const firstInjector = resolutionPath[0];\n                    const lookupFromFirstInjector = firstInjector.get(dep.token, null, { ...dep.flags, optional: true });\n                    if (lookupFromFirstInjector !== null) {\n                        dep.providedIn = injectorToCheck;\n                    }\n                    break;\n                }\n                dep.providedIn = injectorToCheck;\n                break;\n            }\n            // if self is true we stop after the first injector\n            if (i === 0 && dep.flags.self) {\n                break;\n            }\n        }\n        return dep;\n    });\n    return { instance, dependencies };\n}\n/**\n * Gets the class associated with an injector that contains a provider `imports` array in it's\n * definition\n *\n * For Module Injectors this returns the NgModule constructor.\n *\n * For Standalone injectors this returns the standalone component constructor.\n *\n * @param injector Injector an injector instance\n * @returns the constructor where the `imports` array that configures this injector is located\n */\nfunction getProviderImportsContainer(injector) {\n    const { standaloneInjectorToComponent } = getFrameworkDIDebugData();\n    // standalone components configure providers through a component def, so we have to\n    // use the standalone component associated with this injector if Injector represents\n    // a standalone components EnvironmentInjector\n    if (standaloneInjectorToComponent.has(injector)) {\n        return standaloneInjectorToComponent.get(injector);\n    }\n    // Module injectors configure providers through their NgModule def, so we use the\n    // injector to lookup its NgModuleRef and through that grab its instance\n    const defTypeRef = injector.get(NgModuleRef$1, null, { self: true, optional: true });\n    // If we can't find an associated imports container, return null.\n    // This could be the case if this function is called with an R3Injector that does not represent\n    // a standalone component or NgModule.\n    if (defTypeRef === null) {\n        return null;\n    }\n    // In standalone applications, the root environment injector created by bootstrapApplication\n    // may have no associated \"instance\".\n    if (defTypeRef.instance === null) {\n        return null;\n    }\n    return defTypeRef.instance.constructor;\n}\n/**\n * Gets the providers configured on a NodeInjector\n *\n * @param injector A NodeInjector instance\n * @returns ProviderRecord[] an array of objects representing the providers configured on this\n *     injector\n */\nfunction getNodeInjectorProviders(injector) {\n    const diResolver = getNodeInjectorLView(injector);\n    const { resolverToProviders } = getFrameworkDIDebugData();\n    return resolverToProviders.get(diResolver) ?? [];\n}\n/**\n * Gets a mapping of providers configured on an injector to their import paths\n *\n * ModuleA -> imports ModuleB\n * ModuleB -> imports ModuleC\n * ModuleB -> provides MyServiceA\n * ModuleC -> provides MyServiceB\n *\n * getProviderImportPaths(ModuleA)\n * > Map(2) {\n *   MyServiceA => [ModuleA, ModuleB]\n *   MyServiceB => [ModuleA, ModuleB, ModuleC]\n *  }\n *\n * @param providerImportsContainer constructor of class that contains an `imports` array in it's\n *     definition\n * @returns A Map object that maps providers to an array of constructors representing it's import\n *     path\n *\n */\nfunction getProviderImportPaths(providerImportsContainer) {\n    const providerToPath = new Map();\n    const visitedContainers = new Set();\n    const visitor = walkProviderTreeToDiscoverImportPaths(providerToPath, visitedContainers);\n    walkProviderTree(providerImportsContainer, visitor, [], new Set());\n    return providerToPath;\n}\n/**\n *\n * Higher order function that returns a visitor for WalkProviderTree\n *\n * Takes in a Map and Set to keep track of the providers and containers\n * visited, so that we can discover the import paths of these providers\n * during the traversal.\n *\n * This visitor takes advantage of the fact that walkProviderTree performs a\n * postorder traversal of the provider tree for the passed in container. Because postorder\n * traversal recursively processes subtrees from leaf nodes until the traversal reaches the root,\n * we write a visitor that constructs provider import paths in reverse.\n *\n *\n * We use the visitedContainers set defined outside this visitor\n * because we want to run some logic only once for\n * each container in the tree. That logic can be described as:\n *\n *\n * 1. for each discovered_provider and discovered_path in the incomplete provider paths we've\n * already discovered\n * 2. get the first container in discovered_path\n * 3. if that first container is in the imports array of the container we're visiting\n *    Then the container we're visiting is also in the import path of discovered_provider, so we\n *    unshift discovered_path with the container we're currently visiting\n *\n *\n * Example Run:\n * ```\n *                 ┌──────────┐\n *                 │containerA│\n *      ┌─imports-─┤          ├──imports─┐\n *      │          │  provA   │          │\n *      │          │  provB   │          │\n *      │          └──────────┘          │\n *      │                                │\n *     ┌▼─────────┐             ┌────────▼─┐\n *     │containerB│             │containerC│\n *     │          │             │          │\n *     │  provD   │             │  provF   │\n *     │  provE   │             │  provG   │\n *     └──────────┘             └──────────┘\n * ```\n *\n * Each step of the traversal,\n *\n * ```\n * visitor(provD, containerB)\n * providerToPath === Map { provD => [containerB] }\n * visitedContainers === Set { containerB }\n *\n * visitor(provE, containerB)\n * providerToPath === Map { provD => [containerB], provE => [containerB] }\n * visitedContainers === Set { containerB }\n *\n * visitor(provF, containerC)\n * providerToPath === Map { provD => [containerB], provE => [containerB], provF => [containerC] }\n * visitedContainers === Set { containerB, containerC }\n *\n * visitor(provG, containerC)\n * providerToPath === Map {\n *   provD => [containerB], provE => [containerB], provF => [containerC], provG => [containerC]\n * }\n * visitedContainers === Set { containerB, containerC }\n *\n * visitor(provA, containerA)\n * providerToPath === Map {\n *   provD => [containerA, containerB],\n *   provE => [containerA, containerB],\n *   provF => [containerA, containerC],\n *   provG => [containerA, containerC],\n *   provA => [containerA]\n * }\n * visitedContainers === Set { containerB, containerC, containerA }\n *\n * visitor(provB, containerA)\n * providerToPath === Map {\n *   provD => [containerA, containerB],\n *   provE => [containerA, containerB],\n *   provF => [containerA, containerC],\n *   provG => [containerA, containerC],\n *   provA => [containerA]\n *   provB => [containerA]\n * }\n * visitedContainers === Set { containerB, containerC, containerA }\n * ```\n *\n * @param providerToPath Map map of providers to paths that this function fills\n * @param visitedContainers Set a set to keep track of the containers we've already visited\n * @return function(provider SingleProvider, container: Type<unknown> | InjectorType<unknown>) =>\n *     void\n */\nfunction walkProviderTreeToDiscoverImportPaths(providerToPath, visitedContainers) {\n    return (provider, container) => {\n        // If the provider is not already in the providerToPath map,\n        // add an entry with the provider as the key and an array containing the current container as\n        // the value\n        if (!providerToPath.has(provider)) {\n            providerToPath.set(provider, [container]);\n        }\n        // This block will run exactly once for each container in the import tree.\n        // This is where we run the logic to check the imports array of the current\n        // container to see if it's the next container in the path for our currently\n        // discovered providers.\n        if (!visitedContainers.has(container)) {\n            // Iterate through the providers we've already seen\n            for (const prov of providerToPath.keys()) {\n                const existingImportPath = providerToPath.get(prov);\n                let containerDef = getInjectorDef(container);\n                if (!containerDef) {\n                    const ngModule = container.ngModule;\n                    containerDef = getInjectorDef(ngModule);\n                }\n                if (!containerDef) {\n                    return;\n                }\n                const lastContainerAddedToPath = existingImportPath[0];\n                let isNextStepInPath = false;\n                deepForEach(containerDef.imports, (moduleImport) => {\n                    if (isNextStepInPath) {\n                        return;\n                    }\n                    isNextStepInPath = moduleImport.ngModule === lastContainerAddedToPath ||\n                        moduleImport === lastContainerAddedToPath;\n                    if (isNextStepInPath) {\n                        providerToPath.get(prov)?.unshift(container);\n                    }\n                });\n            }\n        }\n        visitedContainers.add(container);\n    };\n}\n/**\n * Gets the providers configured on an EnvironmentInjector\n *\n * @param injector EnvironmentInjector\n * @returns an array of objects representing the providers of the given injector\n */\nfunction getEnvironmentInjectorProviders(injector) {\n    const providerRecords = getFrameworkDIDebugData().resolverToProviders.get(injector) ?? [];\n    // platform injector has no provider imports container so can we skip trying to\n    // find import paths\n    if (isPlatformInjector(injector)) {\n        return providerRecords;\n    }\n    const providerImportsContainer = getProviderImportsContainer(injector);\n    if (providerImportsContainer === null) {\n        // There is a special case where the bootstrapped component does not\n        // import any NgModules. In this case the environment injector connected to\n        // that component is the root injector, which does not have a provider imports\n        // container (and thus no concept of module import paths). Therefore we simply\n        // return the provider records as is.\n        if (isRootInjector(injector)) {\n            return providerRecords;\n        }\n        throwError('Could not determine where injector providers were configured.');\n    }\n    const providerToPath = getProviderImportPaths(providerImportsContainer);\n    return providerRecords.map(providerRecord => {\n        let importPath = providerToPath.get(providerRecord.provider) ?? [providerImportsContainer];\n        const def = getComponentDef(providerImportsContainer);\n        const isStandaloneComponent = !!def?.standalone;\n        // We prepend the component constructor in the standalone case\n        // because walkProviderTree does not visit this constructor during it's traversal\n        if (isStandaloneComponent) {\n            importPath = [providerImportsContainer, ...providerToPath.get(providerRecord.provider) ?? []];\n        }\n        return { ...providerRecord, importPath };\n    });\n}\nfunction isPlatformInjector(injector) {\n    return injector instanceof R3Injector && injector.scopes.has('platform');\n}\nfunction isRootInjector(injector) {\n    return injector instanceof R3Injector && injector.scopes.has('root');\n}\n/**\n * Gets the providers configured on an injector.\n *\n * @param injector the injector to lookup the providers of\n * @returns ProviderRecord[] an array of objects representing the providers of the given injector\n */\nfunction getInjectorProviders(injector) {\n    if (injector instanceof NodeInjector) {\n        return getNodeInjectorProviders(injector);\n    }\n    else if (injector instanceof EnvironmentInjector) {\n        return getEnvironmentInjectorProviders(injector);\n    }\n    throwError('getInjectorProviders only supports NodeInjector and EnvironmentInjector');\n}\nfunction getInjectorResolutionPath(injector) {\n    const resolutionPath = [injector];\n    getInjectorResolutionPathHelper(injector, resolutionPath);\n    return resolutionPath;\n}\nfunction getInjectorResolutionPathHelper(injector, resolutionPath) {\n    const parent = getInjectorParent(injector);\n    // if getInjectorParent can't find a parent, then we've either reached the end\n    // of the path, or we need to move from the Element Injector tree to the\n    // module injector tree using the first injector in our path as the connection point.\n    if (parent === null) {\n        if (injector instanceof NodeInjector) {\n            const firstInjector = resolutionPath[0];\n            if (firstInjector instanceof NodeInjector) {\n                const moduleInjector = getModuleInjectorOfNodeInjector(firstInjector);\n                if (moduleInjector === null) {\n                    throwError('NodeInjector must have some connection to the module injector tree');\n                }\n                resolutionPath.push(moduleInjector);\n                getInjectorResolutionPathHelper(moduleInjector, resolutionPath);\n            }\n            return resolutionPath;\n        }\n    }\n    else {\n        resolutionPath.push(parent);\n        getInjectorResolutionPathHelper(parent, resolutionPath);\n    }\n    return resolutionPath;\n}\n/**\n * Gets the parent of an injector.\n *\n * This function is not able to make the jump from the Element Injector Tree to the Module\n * injector tree. This is because the \"parent\" (the next step in the reoslution path)\n * of a root NodeInjector is dependent on which NodeInjector ancestor initiated\n * the DI lookup. See getInjectorResolutionPath for a function that can make this jump.\n *\n * In the below diagram:\n * ```ts\n * getInjectorParent(NodeInjectorB)\n *  > NodeInjectorA\n * getInjectorParent(NodeInjectorA) // or getInjectorParent(getInjectorParent(NodeInjectorB))\n *  > null // cannot jump to ModuleInjector tree\n * ```\n *\n * ```\n *                ┌───────┐                ┌───────────────────┐\n *    ┌───────────┤ModuleA├───Injector────►│EnvironmentInjector│\n *    │           └───┬───┘                └───────────────────┘\n *    │               │\n *    │           bootstraps\n *    │               │\n *    │               │\n *    │          ┌────▼─────┐                 ┌─────────────┐\n * declares      │ComponentA├────Injector────►│NodeInjectorA│\n *    │          └────┬─────┘                 └─────▲───────┘\n *    │               │                             │\n *    │            renders                        parent\n *    │               │                             │\n *    │          ┌────▼─────┐                 ┌─────┴───────┐\n *    └─────────►│ComponentB├────Injector────►│NodeInjectorB│\n *               └──────────┘                 └─────────────┘\n *```\n *\n * @param injector an Injector to get the parent of\n * @returns Injector the parent of the given injector\n */\nfunction getInjectorParent(injector) {\n    if (injector instanceof R3Injector) {\n        return injector.parent;\n    }\n    let tNode;\n    let lView;\n    if (injector instanceof NodeInjector) {\n        tNode = getNodeInjectorTNode(injector);\n        lView = getNodeInjectorLView(injector);\n    }\n    else if (injector instanceof NullInjector) {\n        return null;\n    }\n    else {\n        throwError('getInjectorParent only support injectors of type R3Injector, NodeInjector, NullInjector');\n    }\n    const parentLocation = getParentInjectorLocation(tNode, lView);\n    if (hasParentInjector(parentLocation)) {\n        const parentInjectorIndex = getParentInjectorIndex(parentLocation);\n        const parentLView = getParentInjectorView(parentLocation, lView);\n        const parentTView = parentLView[TVIEW];\n        const parentTNode = parentTView.data[parentInjectorIndex + 8 /* NodeInjectorOffset.TNODE */];\n        return new NodeInjector(parentTNode, parentLView);\n    }\n    else {\n        const chainedInjector = lView[INJECTOR$1];\n        // Case where chainedInjector.injector is an OutletInjector and chainedInjector.injector.parent\n        // is a NodeInjector.\n        // todo(aleksanderbodurri): ideally nothing in packages/core should deal\n        // directly with router concerns. Refactor this so that we can make the jump from\n        // NodeInjector -> OutletInjector -> NodeInjector\n        // without explictly relying on types contracts from packages/router\n        const injectorParent = chainedInjector.injector?.parent;\n        if (injectorParent instanceof NodeInjector) {\n            return injectorParent;\n        }\n    }\n    return null;\n}\n/**\n * Gets the module injector of a NodeInjector.\n *\n * @param injector NodeInjector to get module injector of\n * @returns Injector representing module injector of the given NodeInjector\n */\nfunction getModuleInjectorOfNodeInjector(injector) {\n    let lView;\n    if (injector instanceof NodeInjector) {\n        lView = getNodeInjectorLView(injector);\n    }\n    else {\n        throwError('getModuleInjectorOfNodeInjector must be called with a NodeInjector');\n    }\n    const chainedInjector = lView[INJECTOR$1];\n    const moduleInjector = chainedInjector.parentInjector;\n    if (!moduleInjector) {\n        throwError('NodeInjector must have some connection to the module injector tree');\n    }\n    return moduleInjector;\n}\n\n/**\n * This file introduces series of globally accessible debug tools\n * to allow for the Angular debugging story to function.\n *\n * To see this in action run the following command:\n *\n *   bazel run //packages/core/test/bundling/todo:devserver\n *\n *  Then load `localhost:5432` and start using the console tools.\n */\n/**\n * This value reflects the property on the window where the dev\n * tools are patched (window.ng).\n * */\nconst GLOBAL_PUBLISH_EXPANDO_KEY = 'ng';\nlet _published = false;\n/**\n * Publishes a collection of default debug tools onto`window.ng`.\n *\n * These functions are available globally when Angular is in development\n * mode and are automatically stripped away from prod mode is on.\n */\nfunction publishDefaultGlobalUtils$1() {\n    if (!_published) {\n        _published = true;\n        setupFrameworkInjectorProfiler();\n        publishGlobalUtil('ɵgetDependenciesFromInjectable', getDependenciesFromInjectable);\n        publishGlobalUtil('ɵgetInjectorProviders', getInjectorProviders);\n        publishGlobalUtil('ɵgetInjectorResolutionPath', getInjectorResolutionPath);\n        /**\n         * Warning: this function is *INTERNAL* and should not be relied upon in application's code.\n         * The contract of the function might be changed in any release and/or the function can be\n         * removed completely.\n         */\n        publishGlobalUtil('ɵsetProfiler', setProfiler);\n        publishGlobalUtil('getDirectiveMetadata', getDirectiveMetadata$1);\n        publishGlobalUtil('getComponent', getComponent);\n        publishGlobalUtil('getContext', getContext);\n        publishGlobalUtil('getListeners', getListeners);\n        publishGlobalUtil('getOwningComponent', getOwningComponent);\n        publishGlobalUtil('getHostElement', getHostElement);\n        publishGlobalUtil('getInjector', getInjector);\n        publishGlobalUtil('getRootComponents', getRootComponents);\n        publishGlobalUtil('getDirectives', getDirectives);\n        publishGlobalUtil('applyChanges', applyChanges);\n    }\n}\n/**\n * Publishes the given function to `window.ng` so that it can be\n * used from the browser console when an application is not in production.\n */\nfunction publishGlobalUtil(name, fn) {\n    if (typeof COMPILED === 'undefined' || !COMPILED) {\n        // Note: we can't export `ng` when using closure enhanced optimization as:\n        // - closure declares globals itself for minified names, which sometimes clobber our `ng` global\n        // - we can't declare a closure extern as the namespace `ng` is already used within Google\n        //   for typings for AngularJS (via `goog.provide('ng....')`).\n        const w = _global;\n        ngDevMode && assertDefined(fn, 'function not defined');\n        if (w) {\n            let container = w[GLOBAL_PUBLISH_EXPANDO_KEY];\n            if (!container) {\n                container = w[GLOBAL_PUBLISH_EXPANDO_KEY] = {};\n            }\n            container[name] = fn;\n        }\n    }\n}\n\n/**\n * Internal injection token that can used to access an instance of a Testability class.\n *\n * This token acts as a bridge between the core bootstrap code and the `Testability` class. This is\n * needed to ensure that there are no direct references to the `Testability` class, so it can be\n * tree-shaken away (if not referenced). For the environments/setups when the `Testability` class\n * should be available, this token is used to add a provider that references the `Testability`\n * class. Otherwise, only this token is retained in a bundle, but the `Testability` class is not.\n */\nconst TESTABILITY = new InjectionToken('');\n/**\n * Internal injection token to retrieve Testability getter class instance.\n */\nconst TESTABILITY_GETTER = new InjectionToken('');\n/**\n * The Testability service provides testing hooks that can be accessed from\n * the browser.\n *\n * Angular applications bootstrapped using an NgModule (via `@NgModule.bootstrap` field) will also\n * instantiate Testability by default (in both development and production modes).\n *\n * For applications bootstrapped using the `bootstrapApplication` function, Testability is not\n * included by default. You can include it into your applications by getting the list of necessary\n * providers using the `provideProtractorTestingSupport()` function and adding them into the\n * `options.providers` array. Example:\n *\n * ```typescript\n * import {provideProtractorTestingSupport} from '@angular/platform-browser';\n *\n * await bootstrapApplication(RootComponent, providers: [provideProtractorTestingSupport()]);\n * ```\n *\n * @publicApi\n */\nclass Testability {\n    constructor(_ngZone, registry, testabilityGetter) {\n        this._ngZone = _ngZone;\n        this.registry = registry;\n        this._pendingCount = 0;\n        this._isZoneStable = true;\n        /**\n         * Whether any work was done since the last 'whenStable' callback. This is\n         * useful to detect if this could have potentially destabilized another\n         * component while it is stabilizing.\n         * @internal\n         */\n        this._didWork = false;\n        this._callbacks = [];\n        this.taskTrackingZone = null;\n        // If there was no Testability logic registered in the global scope\n        // before, register the current testability getter as a global one.\n        if (!_testabilityGetter) {\n            setTestabilityGetter(testabilityGetter);\n            testabilityGetter.addToWindow(registry);\n        }\n        this._watchAngularEvents();\n        _ngZone.run(() => {\n            this.taskTrackingZone =\n                typeof Zone == 'undefined' ? null : Zone.current.get('TaskTrackingZone');\n        });\n    }\n    _watchAngularEvents() {\n        this._ngZone.onUnstable.subscribe({\n            next: () => {\n                this._didWork = true;\n                this._isZoneStable = false;\n            }\n        });\n        this._ngZone.runOutsideAngular(() => {\n            this._ngZone.onStable.subscribe({\n                next: () => {\n                    NgZone.assertNotInAngularZone();\n                    queueMicrotask(() => {\n                        this._isZoneStable = true;\n                        this._runCallbacksIfReady();\n                    });\n                }\n            });\n        });\n    }\n    /**\n     * Increases the number of pending request\n     * @deprecated pending requests are now tracked with zones.\n     */\n    increasePendingRequestCount() {\n        this._pendingCount += 1;\n        this._didWork = true;\n        return this._pendingCount;\n    }\n    /**\n     * Decreases the number of pending request\n     * @deprecated pending requests are now tracked with zones\n     */\n    decreasePendingRequestCount() {\n        this._pendingCount -= 1;\n        if (this._pendingCount < 0) {\n            throw new Error('pending async requests below zero');\n        }\n        this._runCallbacksIfReady();\n        return this._pendingCount;\n    }\n    /**\n     * Whether an associated application is stable\n     */\n    isStable() {\n        return this._isZoneStable && this._pendingCount === 0 && !this._ngZone.hasPendingMacrotasks;\n    }\n    _runCallbacksIfReady() {\n        if (this.isStable()) {\n            // Schedules the call backs in a new frame so that it is always async.\n            queueMicrotask(() => {\n                while (this._callbacks.length !== 0) {\n                    let cb = this._callbacks.pop();\n                    clearTimeout(cb.timeoutId);\n                    cb.doneCb(this._didWork);\n                }\n                this._didWork = false;\n            });\n        }\n        else {\n            // Still not stable, send updates.\n            let pending = this.getPendingTasks();\n            this._callbacks = this._callbacks.filter((cb) => {\n                if (cb.updateCb && cb.updateCb(pending)) {\n                    clearTimeout(cb.timeoutId);\n                    return false;\n                }\n                return true;\n            });\n            this._didWork = true;\n        }\n    }\n    getPendingTasks() {\n        if (!this.taskTrackingZone) {\n            return [];\n        }\n        // Copy the tasks data so that we don't leak tasks.\n        return this.taskTrackingZone.macroTasks.map((t) => {\n            return {\n                source: t.source,\n                // From TaskTrackingZone:\n                // https://github.com/angular/zone.js/blob/master/lib/zone-spec/task-tracking.ts#L40\n                creationLocation: t.creationLocation,\n                data: t.data\n            };\n        });\n    }\n    addCallback(cb, timeout, updateCb) {\n        let timeoutId = -1;\n        if (timeout && timeout > 0) {\n            timeoutId = setTimeout(() => {\n                this._callbacks = this._callbacks.filter((cb) => cb.timeoutId !== timeoutId);\n                cb(this._didWork, this.getPendingTasks());\n            }, timeout);\n        }\n        this._callbacks.push({ doneCb: cb, timeoutId: timeoutId, updateCb: updateCb });\n    }\n    /**\n     * Wait for the application to be stable with a timeout. If the timeout is reached before that\n     * happens, the callback receives a list of the macro tasks that were pending, otherwise null.\n     *\n     * @param doneCb The callback to invoke when Angular is stable or the timeout expires\n     *    whichever comes first.\n     * @param timeout Optional. The maximum time to wait for Angular to become stable. If not\n     *    specified, whenStable() will wait forever.\n     * @param updateCb Optional. If specified, this callback will be invoked whenever the set of\n     *    pending macrotasks changes. If this callback returns true doneCb will not be invoked\n     *    and no further updates will be issued.\n     */\n    whenStable(doneCb, timeout, updateCb) {\n        if (updateCb && !this.taskTrackingZone) {\n            throw new Error('Task tracking zone is required when passing an update callback to ' +\n                'whenStable(). Is \"zone.js/plugins/task-tracking\" loaded?');\n        }\n        // These arguments are 'Function' above to keep the public API simple.\n        this.addCallback(doneCb, timeout, updateCb);\n        this._runCallbacksIfReady();\n    }\n    /**\n     * Get the number of pending requests\n     * @deprecated pending requests are now tracked with zones\n     */\n    getPendingRequestCount() {\n        return this._pendingCount;\n    }\n    /**\n     * Registers an application with a testability hook so that it can be tracked.\n     * @param token token of application, root element\n     *\n     * @internal\n     */\n    registerApplication(token) {\n        this.registry.registerApplication(token, this);\n    }\n    /**\n     * Unregisters an application.\n     * @param token token of application, root element\n     *\n     * @internal\n     */\n    unregisterApplication(token) {\n        this.registry.unregisterApplication(token);\n    }\n    /**\n     * Find providers by name\n     * @param using The root element to search from\n     * @param provider The name of binding variable\n     * @param exactMatch Whether using exactMatch\n     */\n    findProviders(using, provider, exactMatch) {\n        // TODO(juliemr): implement.\n        return [];\n    }\n    static { this.ɵfac = function Testability_Factory(t) { return new (t || Testability)(ɵɵinject(NgZone), ɵɵinject(TestabilityRegistry), ɵɵinject(TESTABILITY_GETTER)); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: Testability, factory: Testability.ɵfac }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(Testability, [{\n        type: Injectable\n    }], function () { return [{ type: NgZone }, { type: TestabilityRegistry }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [TESTABILITY_GETTER]\n            }] }]; }, null); })();\n/**\n * A global registry of {@link Testability} instances for specific elements.\n * @publicApi\n */\nclass TestabilityRegistry {\n    constructor() {\n        /** @internal */\n        this._applications = new Map();\n    }\n    /**\n     * Registers an application with a testability hook so that it can be tracked\n     * @param token token of application, root element\n     * @param testability Testability hook\n     */\n    registerApplication(token, testability) {\n        this._applications.set(token, testability);\n    }\n    /**\n     * Unregisters an application.\n     * @param token token of application, root element\n     */\n    unregisterApplication(token) {\n        this._applications.delete(token);\n    }\n    /**\n     * Unregisters all applications\n     */\n    unregisterAllApplications() {\n        this._applications.clear();\n    }\n    /**\n     * Get a testability hook associated with the application\n     * @param elem root element\n     */\n    getTestability(elem) {\n        return this._applications.get(elem) || null;\n    }\n    /**\n     * Get all registered testabilities\n     */\n    getAllTestabilities() {\n        return Array.from(this._applications.values());\n    }\n    /**\n     * Get all registered applications(root elements)\n     */\n    getAllRootElements() {\n        return Array.from(this._applications.keys());\n    }\n    /**\n     * Find testability of a node in the Tree\n     * @param elem node\n     * @param findInAncestors whether finding testability in ancestors if testability was not found in\n     * current node\n     */\n    findTestabilityInTree(elem, findInAncestors = true) {\n        return _testabilityGetter?.findTestabilityInTree(this, elem, findInAncestors) ?? null;\n    }\n    static { this.ɵfac = function TestabilityRegistry_Factory(t) { return new (t || TestabilityRegistry)(); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: TestabilityRegistry, factory: TestabilityRegistry.ɵfac, providedIn: 'platform' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(TestabilityRegistry, [{\n        type: Injectable,\n        args: [{ providedIn: 'platform' }]\n    }], null, null); })();\n/**\n * Set the {@link GetTestability} implementation used by the Angular testing framework.\n * @publicApi\n */\nfunction setTestabilityGetter(getter) {\n    _testabilityGetter = getter;\n}\nlet _testabilityGetter;\n\nlet _platformInjector = null;\n/**\n * Internal token to indicate whether having multiple bootstrapped platform should be allowed (only\n * one bootstrapped platform is allowed by default). This token helps to support SSR scenarios.\n */\nconst ALLOW_MULTIPLE_PLATFORMS = new InjectionToken('AllowMultipleToken');\n/**\n * Internal token that allows to register extra callbacks that should be invoked during the\n * `PlatformRef.destroy` operation. This token is needed to avoid a direct reference to the\n * `PlatformRef` class (i.e. register the callback via `PlatformRef.onDestroy`), thus making the\n * entire class tree-shakeable.\n */\nconst PLATFORM_DESTROY_LISTENERS = new InjectionToken('PlatformDestroyListeners');\n/**\n * A [DI token](guide/glossary#di-token \"DI token definition\") that provides a set of callbacks to\n * be called for every component that is bootstrapped.\n *\n * Each callback must take a `ComponentRef` instance and return nothing.\n *\n * `(componentRef: ComponentRef) => void`\n *\n * @publicApi\n */\nconst APP_BOOTSTRAP_LISTENER = new InjectionToken('appBootstrapListener');\nfunction compileNgModuleFactory(injector, options, moduleType) {\n    ngDevMode && assertNgModuleType(moduleType);\n    const moduleFactory = new NgModuleFactory(moduleType);\n    // All of the logic below is irrelevant for AOT-compiled code.\n    if (typeof ngJitMode !== 'undefined' && !ngJitMode) {\n        return Promise.resolve(moduleFactory);\n    }\n    const compilerOptions = injector.get(COMPILER_OPTIONS, []).concat(options);\n    // Configure the compiler to use the provided options. This call may fail when multiple modules\n    // are bootstrapped with incompatible options, as a component can only be compiled according to\n    // a single set of options.\n    setJitOptions({\n        defaultEncapsulation: _lastDefined(compilerOptions.map(opts => opts.defaultEncapsulation)),\n        preserveWhitespaces: _lastDefined(compilerOptions.map(opts => opts.preserveWhitespaces)),\n    });\n    if (isComponentResourceResolutionQueueEmpty()) {\n        return Promise.resolve(moduleFactory);\n    }\n    const compilerProviders = compilerOptions.flatMap((option) => option.providers ?? []);\n    // In case there are no compiler providers, we just return the module factory as\n    // there won't be any resource loader. This can happen with Ivy, because AOT compiled\n    // modules can be still passed through \"bootstrapModule\". In that case we shouldn't\n    // unnecessarily require the JIT compiler.\n    if (compilerProviders.length === 0) {\n        return Promise.resolve(moduleFactory);\n    }\n    const compiler = getCompilerFacade({\n        usage: 0 /* JitCompilerUsage.Decorator */,\n        kind: 'NgModule',\n        type: moduleType,\n    });\n    const compilerInjector = Injector.create({ providers: compilerProviders });\n    const resourceLoader = compilerInjector.get(compiler.ResourceLoader);\n    // The resource loader can also return a string while the \"resolveComponentResources\"\n    // always expects a promise. Therefore we need to wrap the returned value in a promise.\n    return resolveComponentResources(url => Promise.resolve(resourceLoader.get(url)))\n        .then(() => moduleFactory);\n}\nfunction publishDefaultGlobalUtils() {\n    ngDevMode && publishDefaultGlobalUtils$1();\n}\n/**\n * Sets the error for an invalid write to a signal to be an Angular `RuntimeError`.\n */\nfunction publishSignalConfiguration() {\n    setThrowInvalidWriteToSignalError(() => {\n        throw new RuntimeError(600 /* RuntimeErrorCode.SIGNAL_WRITE_FROM_ILLEGAL_CONTEXT */, ngDevMode &&\n            'Writing to signals is not allowed in a `computed` or an `effect` by default. ' +\n                'Use `allowSignalWrites` in the `CreateEffectOptions` to enable this inside effects.');\n    });\n}\nfunction isBoundToModule(cf) {\n    return cf.isBoundToModule;\n}\n/**\n * A token for third-party components that can register themselves with NgProbe.\n *\n * @publicApi\n */\nclass NgProbeToken {\n    constructor(name, token) {\n        this.name = name;\n        this.token = token;\n    }\n}\n/**\n * Creates a platform.\n * Platforms must be created on launch using this function.\n *\n * @publicApi\n */\nfunction createPlatform(injector) {\n    if (_platformInjector && !_platformInjector.get(ALLOW_MULTIPLE_PLATFORMS, false)) {\n        throw new RuntimeError(400 /* RuntimeErrorCode.MULTIPLE_PLATFORMS */, ngDevMode &&\n            'There can be only one platform. Destroy the previous one to create a new one.');\n    }\n    publishDefaultGlobalUtils();\n    publishSignalConfiguration();\n    _platformInjector = injector;\n    const platform = injector.get(PlatformRef);\n    runPlatformInitializers(injector);\n    return platform;\n}\n/**\n * The goal of this function is to bootstrap a platform injector,\n * but avoid referencing `PlatformRef` class.\n * This function is needed for bootstrapping a Standalone Component.\n */\nfunction createOrReusePlatformInjector(providers = []) {\n    // If a platform injector already exists, it means that the platform\n    // is already bootstrapped and no additional actions are required.\n    if (_platformInjector)\n        return _platformInjector;\n    publishDefaultGlobalUtils();\n    // Otherwise, setup a new platform injector and run platform initializers.\n    const injector = createPlatformInjector(providers);\n    _platformInjector = injector;\n    publishSignalConfiguration();\n    runPlatformInitializers(injector);\n    return injector;\n}\nfunction runPlatformInitializers(injector) {\n    const inits = injector.get(PLATFORM_INITIALIZER, null);\n    inits?.forEach((init) => init());\n}\n/**\n * Internal create application API that implements the core application creation logic and optional\n * bootstrap logic.\n *\n * Platforms (such as `platform-browser`) may require different set of application and platform\n * providers for an application to function correctly. As a result, platforms may use this function\n * internally and supply the necessary providers during the bootstrap, while exposing\n * platform-specific APIs as a part of their public API.\n *\n * @returns A promise that returns an `ApplicationRef` instance once resolved.\n */\nfunction internalCreateApplication(config) {\n    try {\n        const { rootComponent, appProviders, platformProviders } = config;\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && rootComponent !== undefined) {\n            assertStandaloneComponentType(rootComponent);\n        }\n        const platformInjector = createOrReusePlatformInjector(platformProviders);\n        // Create root application injector based on a set of providers configured at the platform\n        // bootstrap level as well as providers passed to the bootstrap call by a user.\n        const allAppProviders = [\n            provideZoneChangeDetection(),\n            ...(appProviders || []),\n        ];\n        const adapter = new EnvironmentNgModuleRefAdapter({\n            providers: allAppProviders,\n            parent: platformInjector,\n            debugName: (typeof ngDevMode === 'undefined' || ngDevMode) ? 'Environment Injector' : '',\n            // We skip environment initializers because we need to run them inside the NgZone, which\n            // happens after we get the NgZone instance from the Injector.\n            runEnvironmentInitializers: false,\n        });\n        const envInjector = adapter.injector;\n        const ngZone = envInjector.get(NgZone);\n        return ngZone.run(() => {\n            envInjector.resolveInjectorInitializers();\n            const exceptionHandler = envInjector.get(ErrorHandler, null);\n            if ((typeof ngDevMode === 'undefined' || ngDevMode) && !exceptionHandler) {\n                throw new RuntimeError(402 /* RuntimeErrorCode.MISSING_REQUIRED_INJECTABLE_IN_BOOTSTRAP */, 'No `ErrorHandler` found in the Dependency Injection tree.');\n            }\n            let onErrorSubscription;\n            ngZone.runOutsideAngular(() => {\n                onErrorSubscription = ngZone.onError.subscribe({\n                    next: (error) => {\n                        exceptionHandler.handleError(error);\n                    }\n                });\n            });\n            // If the whole platform is destroyed, invoke the `destroy` method\n            // for all bootstrapped applications as well.\n            const destroyListener = () => envInjector.destroy();\n            const onPlatformDestroyListeners = platformInjector.get(PLATFORM_DESTROY_LISTENERS);\n            onPlatformDestroyListeners.add(destroyListener);\n            envInjector.onDestroy(() => {\n                onErrorSubscription.unsubscribe();\n                onPlatformDestroyListeners.delete(destroyListener);\n            });\n            return _callAndReportToErrorHandler(exceptionHandler, ngZone, () => {\n                const initStatus = envInjector.get(ApplicationInitStatus);\n                initStatus.runInitializers();\n                return initStatus.donePromise.then(() => {\n                    const localeId = envInjector.get(LOCALE_ID, DEFAULT_LOCALE_ID);\n                    setLocaleId(localeId || DEFAULT_LOCALE_ID);\n                    const appRef = envInjector.get(ApplicationRef);\n                    if (rootComponent !== undefined) {\n                        appRef.bootstrap(rootComponent);\n                    }\n                    return appRef;\n                });\n            });\n        });\n    }\n    catch (e) {\n        return Promise.reject(e);\n    }\n}\n/**\n * Creates a factory for a platform. Can be used to provide or override `Providers` specific to\n * your application's runtime needs, such as `PLATFORM_INITIALIZER` and `PLATFORM_ID`.\n * @param parentPlatformFactory Another platform factory to modify. Allows you to compose factories\n * to build up configurations that might be required by different libraries or parts of the\n * application.\n * @param name Identifies the new platform factory.\n * @param providers A set of dependency providers for platforms created with the new factory.\n *\n * @publicApi\n */\nfunction createPlatformFactory(parentPlatformFactory, name, providers = []) {\n    const desc = `Platform: ${name}`;\n    const marker = new InjectionToken(desc);\n    return (extraProviders = []) => {\n        let platform = getPlatform();\n        if (!platform || platform.injector.get(ALLOW_MULTIPLE_PLATFORMS, false)) {\n            const platformProviders = [\n                ...providers,\n                ...extraProviders,\n                { provide: marker, useValue: true }\n            ];\n            if (parentPlatformFactory) {\n                parentPlatformFactory(platformProviders);\n            }\n            else {\n                createPlatform(createPlatformInjector(platformProviders, desc));\n            }\n        }\n        return assertPlatform(marker);\n    };\n}\n/**\n * Checks that there is currently a platform that contains the given token as a provider.\n *\n * @publicApi\n */\nfunction assertPlatform(requiredToken) {\n    const platform = getPlatform();\n    if (!platform) {\n        throw new RuntimeError(401 /* RuntimeErrorCode.PLATFORM_NOT_FOUND */, ngDevMode && 'No platform exists!');\n    }\n    if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n        !platform.injector.get(requiredToken, null)) {\n        throw new RuntimeError(400 /* RuntimeErrorCode.MULTIPLE_PLATFORMS */, 'A platform with a different configuration has been created. Please destroy it first.');\n    }\n    return platform;\n}\n/**\n * Helper function to create an instance of a platform injector (that maintains the 'platform'\n * scope).\n */\nfunction createPlatformInjector(providers = [], name) {\n    return Injector.create({\n        name,\n        providers: [\n            { provide: INJECTOR_SCOPE, useValue: 'platform' },\n            { provide: PLATFORM_DESTROY_LISTENERS, useValue: new Set([() => _platformInjector = null]) },\n            ...providers\n        ],\n    });\n}\n/**\n * Destroys the current Angular platform and all Angular applications on the page.\n * Destroys all modules and listeners registered with the platform.\n *\n * @publicApi\n */\nfunction destroyPlatform() {\n    getPlatform()?.destroy();\n}\n/**\n * Returns the current platform.\n *\n * @publicApi\n */\nfunction getPlatform() {\n    return _platformInjector?.get(PlatformRef) ?? null;\n}\n/**\n * The Angular platform is the entry point for Angular on a web page.\n * Each page has exactly one platform. Services (such as reflection) which are common\n * to every Angular application running on the page are bound in its scope.\n * A page's platform is initialized implicitly when a platform is created using a platform\n * factory such as `PlatformBrowser`, or explicitly by calling the `createPlatform()` function.\n *\n * @publicApi\n */\nclass PlatformRef {\n    /** @internal */\n    constructor(_injector) {\n        this._injector = _injector;\n        this._modules = [];\n        this._destroyListeners = [];\n        this._destroyed = false;\n    }\n    /**\n     * Creates an instance of an `@NgModule` for the given platform.\n     *\n     * @deprecated Passing NgModule factories as the `PlatformRef.bootstrapModuleFactory` function\n     *     argument is deprecated. Use the `PlatformRef.bootstrapModule` API instead.\n     */\n    bootstrapModuleFactory(moduleFactory, options) {\n        // Note: We need to create the NgZone _before_ we instantiate the module,\n        // as instantiating the module creates some providers eagerly.\n        // So we create a mini parent injector that just contains the new NgZone and\n        // pass that as parent to the NgModuleFactory.\n        const ngZone = getNgZone(options?.ngZone, getNgZoneOptions({\n            eventCoalescing: options?.ngZoneEventCoalescing,\n            runCoalescing: options?.ngZoneRunCoalescing\n        }));\n        // Note: Create ngZoneInjector within ngZone.run so that all of the instantiated services are\n        // created within the Angular zone\n        // Do not try to replace ngZone.run with ApplicationRef#run because ApplicationRef would then be\n        // created outside of the Angular zone.\n        return ngZone.run(() => {\n            const moduleRef = createNgModuleRefWithProviders(moduleFactory.moduleType, this.injector, internalProvideZoneChangeDetection(() => ngZone));\n            if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n                moduleRef.injector.get(PROVIDED_NG_ZONE, null) !== null) {\n                throw new RuntimeError(207 /* RuntimeErrorCode.PROVIDER_IN_WRONG_CONTEXT */, '`bootstrapModule` does not support `provideZoneChangeDetection`. Use `BootstrapOptions` instead.');\n            }\n            const exceptionHandler = moduleRef.injector.get(ErrorHandler, null);\n            if ((typeof ngDevMode === 'undefined' || ngDevMode) && exceptionHandler === null) {\n                throw new RuntimeError(402 /* RuntimeErrorCode.MISSING_REQUIRED_INJECTABLE_IN_BOOTSTRAP */, 'No ErrorHandler. Is platform module (BrowserModule) included?');\n            }\n            ngZone.runOutsideAngular(() => {\n                const subscription = ngZone.onError.subscribe({\n                    next: (error) => {\n                        exceptionHandler.handleError(error);\n                    }\n                });\n                moduleRef.onDestroy(() => {\n                    remove(this._modules, moduleRef);\n                    subscription.unsubscribe();\n                });\n            });\n            return _callAndReportToErrorHandler(exceptionHandler, ngZone, () => {\n                const initStatus = moduleRef.injector.get(ApplicationInitStatus);\n                initStatus.runInitializers();\n                return initStatus.donePromise.then(() => {\n                    // If the `LOCALE_ID` provider is defined at bootstrap then we set the value for ivy\n                    const localeId = moduleRef.injector.get(LOCALE_ID, DEFAULT_LOCALE_ID);\n                    setLocaleId(localeId || DEFAULT_LOCALE_ID);\n                    this._moduleDoBootstrap(moduleRef);\n                    return moduleRef;\n                });\n            });\n        });\n    }\n    /**\n     * Creates an instance of an `@NgModule` for a given platform.\n     *\n     * @usageNotes\n     * ### Simple Example\n     *\n     * ```typescript\n     * @NgModule({\n     *   imports: [BrowserModule]\n     * })\n     * class MyModule {}\n     *\n     * let moduleRef = platformBrowser().bootstrapModule(MyModule);\n     * ```\n     *\n     */\n    bootstrapModule(moduleType, compilerOptions = []) {\n        const options = optionsReducer({}, compilerOptions);\n        return compileNgModuleFactory(this.injector, options, moduleType)\n            .then(moduleFactory => this.bootstrapModuleFactory(moduleFactory, options));\n    }\n    _moduleDoBootstrap(moduleRef) {\n        const appRef = moduleRef.injector.get(ApplicationRef);\n        if (moduleRef._bootstrapComponents.length > 0) {\n            moduleRef._bootstrapComponents.forEach(f => appRef.bootstrap(f));\n        }\n        else if (moduleRef.instance.ngDoBootstrap) {\n            moduleRef.instance.ngDoBootstrap(appRef);\n        }\n        else {\n            throw new RuntimeError(-403 /* RuntimeErrorCode.BOOTSTRAP_COMPONENTS_NOT_FOUND */, ngDevMode &&\n                `The module ${stringify(moduleRef.instance.constructor)} was bootstrapped, ` +\n                    `but it does not declare \"@NgModule.bootstrap\" components nor a \"ngDoBootstrap\" method. ` +\n                    `Please define one of these.`);\n        }\n        this._modules.push(moduleRef);\n    }\n    /**\n     * Registers a listener to be called when the platform is destroyed.\n     */\n    onDestroy(callback) {\n        this._destroyListeners.push(callback);\n    }\n    /**\n     * Retrieves the platform {@link Injector}, which is the parent injector for\n     * every Angular application on the page and provides singleton providers.\n     */\n    get injector() {\n        return this._injector;\n    }\n    /**\n     * Destroys the current Angular platform and all Angular applications on the page.\n     * Destroys all modules and listeners registered with the platform.\n     */\n    destroy() {\n        if (this._destroyed) {\n            throw new RuntimeError(404 /* RuntimeErrorCode.PLATFORM_ALREADY_DESTROYED */, ngDevMode && 'The platform has already been destroyed!');\n        }\n        this._modules.slice().forEach(module => module.destroy());\n        this._destroyListeners.forEach(listener => listener());\n        const destroyListeners = this._injector.get(PLATFORM_DESTROY_LISTENERS, null);\n        if (destroyListeners) {\n            destroyListeners.forEach(listener => listener());\n            destroyListeners.clear();\n        }\n        this._destroyed = true;\n    }\n    /**\n     * Indicates whether this instance was destroyed.\n     */\n    get destroyed() {\n        return this._destroyed;\n    }\n    static { this.ɵfac = function PlatformRef_Factory(t) { return new (t || PlatformRef)(ɵɵinject(Injector)); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: PlatformRef, factory: PlatformRef.ɵfac, providedIn: 'platform' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(PlatformRef, [{\n        type: Injectable,\n        args: [{ providedIn: 'platform' }]\n    }], function () { return [{ type: Injector }]; }, null); })();\n// Transforms a set of `BootstrapOptions` (supported by the NgModule-based bootstrap APIs) ->\n// `NgZoneOptions` that are recognized by the NgZone constructor. Passing no options will result in\n// a set of default options returned.\nfunction getNgZoneOptions(options) {\n    return {\n        enableLongStackTrace: typeof ngDevMode === 'undefined' ? false : !!ngDevMode,\n        shouldCoalesceEventChangeDetection: options?.eventCoalescing ?? false,\n        shouldCoalesceRunChangeDetection: options?.runCoalescing ?? false,\n    };\n}\nfunction getNgZone(ngZoneToUse = 'zone.js', options) {\n    if (ngZoneToUse === 'noop') {\n        return new NoopNgZone();\n    }\n    if (ngZoneToUse === 'zone.js') {\n        return new NgZone(options);\n    }\n    return ngZoneToUse;\n}\nfunction _callAndReportToErrorHandler(errorHandler, ngZone, callback) {\n    try {\n        const result = callback();\n        if (isPromise(result)) {\n            return result.catch((e) => {\n                ngZone.runOutsideAngular(() => errorHandler.handleError(e));\n                // rethrow as the exception handler might not do it\n                throw e;\n            });\n        }\n        return result;\n    }\n    catch (e) {\n        ngZone.runOutsideAngular(() => errorHandler.handleError(e));\n        // rethrow as the exception handler might not do it\n        throw e;\n    }\n}\nfunction optionsReducer(dst, objs) {\n    if (Array.isArray(objs)) {\n        return objs.reduce(optionsReducer, dst);\n    }\n    return { ...dst, ...objs };\n}\n/**\n * A reference to an Angular application running on a page.\n *\n * @usageNotes\n * {@a is-stable-examples}\n * ### isStable examples and caveats\n *\n * Note two important points about `isStable`, demonstrated in the examples below:\n * - the application will never be stable if you start any kind\n * of recurrent asynchronous task when the application starts\n * (for example for a polling process, started with a `setInterval`, a `setTimeout`\n * or using RxJS operators like `interval`);\n * - the `isStable` Observable runs outside of the Angular zone.\n *\n * Let's imagine that you start a recurrent task\n * (here incrementing a counter, using RxJS `interval`),\n * and at the same time subscribe to `isStable`.\n *\n * ```\n * constructor(appRef: ApplicationRef) {\n *   appRef.isStable.pipe(\n *      filter(stable => stable)\n *   ).subscribe(() => console.log('App is stable now');\n *   interval(1000).subscribe(counter => console.log(counter));\n * }\n * ```\n * In this example, `isStable` will never emit `true`,\n * and the trace \"App is stable now\" will never get logged.\n *\n * If you want to execute something when the app is stable,\n * you have to wait for the application to be stable\n * before starting your polling process.\n *\n * ```\n * constructor(appRef: ApplicationRef) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     tap(stable => console.log('App is stable now')),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => console.log(counter));\n * }\n * ```\n * In this example, the trace \"App is stable now\" will be logged\n * and then the counter starts incrementing every second.\n *\n * Note also that this Observable runs outside of the Angular zone,\n * which means that the code in the subscription\n * to this Observable will not trigger the change detection.\n *\n * Let's imagine that instead of logging the counter value,\n * you update a field of your component\n * and display it in its template.\n *\n * ```\n * constructor(appRef: ApplicationRef) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => this.value = counter);\n * }\n * ```\n * As the `isStable` Observable runs outside the zone,\n * the `value` field will be updated properly,\n * but the template will not be refreshed!\n *\n * You'll have to manually trigger the change detection to update the template.\n *\n * ```\n * constructor(appRef: ApplicationRef, cd: ChangeDetectorRef) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => {\n *     this.value = counter;\n *     cd.detectChanges();\n *   });\n * }\n * ```\n *\n * Or make the subscription callback run inside the zone.\n *\n * ```\n * constructor(appRef: ApplicationRef, zone: NgZone) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => zone.run(() => this.value = counter));\n * }\n * ```\n *\n * @publicApi\n */\nclass ApplicationRef {\n    constructor() {\n        /** @internal */\n        this._bootstrapListeners = [];\n        this._runningTick = false;\n        this._destroyed = false;\n        this._destroyListeners = [];\n        /** @internal */\n        this._views = [];\n        this.internalErrorHandler = inject(INTERNAL_APPLICATION_ERROR_HANDLER);\n        this.zoneIsStable = inject(ZONE_IS_STABLE_OBSERVABLE);\n        /**\n         * Get a list of component types registered to this application.\n         * This list is populated even before the component is created.\n         */\n        this.componentTypes = [];\n        /**\n         * Get a list of components registered to this application.\n         */\n        this.components = [];\n        /**\n         * Returns an Observable that indicates when the application is stable or unstable.\n         */\n        this.isStable = inject(InitialRenderPendingTasks)\n            .hasPendingTasks.pipe(switchMap(hasPendingTasks => hasPendingTasks ? of(false) : this.zoneIsStable), distinctUntilChanged(), share());\n        this._injector = inject(EnvironmentInjector);\n    }\n    /**\n     * Indicates whether this instance was destroyed.\n     */\n    get destroyed() {\n        return this._destroyed;\n    }\n    /**\n     * The `EnvironmentInjector` used to create this application.\n     */\n    get injector() {\n        return this._injector;\n    }\n    /**\n     * Bootstrap a component onto the element identified by its selector or, optionally, to a\n     * specified element.\n     *\n     * @usageNotes\n     * ### Bootstrap process\n     *\n     * When bootstrapping a component, Angular mounts it onto a target DOM element\n     * and kicks off automatic change detection. The target DOM element can be\n     * provided using the `rootSelectorOrNode` argument.\n     *\n     * If the target DOM element is not provided, Angular tries to find one on a page\n     * using the `selector` of the component that is being bootstrapped\n     * (first matched element is used).\n     *\n     * ### Example\n     *\n     * Generally, we define the component to bootstrap in the `bootstrap` array of `NgModule`,\n     * but it requires us to know the component while writing the application code.\n     *\n     * Imagine a situation where we have to wait for an API call to decide about the component to\n     * bootstrap. We can use the `ngDoBootstrap` hook of the `NgModule` and call this method to\n     * dynamically bootstrap a component.\n     *\n     * {@example core/ts/platform/platform.ts region='componentSelector'}\n     *\n     * Optionally, a component can be mounted onto a DOM element that does not match the\n     * selector of the bootstrapped component.\n     *\n     * In the following example, we are providing a CSS selector to match the target element.\n     *\n     * {@example core/ts/platform/platform.ts region='cssSelector'}\n     *\n     * While in this example, we are providing reference to a DOM node.\n     *\n     * {@example core/ts/platform/platform.ts region='domNode'}\n     */\n    bootstrap(componentOrFactory, rootSelectorOrNode) {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && this.warnIfDestroyed();\n        const isComponentFactory = componentOrFactory instanceof ComponentFactory$1;\n        const initStatus = this._injector.get(ApplicationInitStatus);\n        if (!initStatus.done) {\n            const standalone = !isComponentFactory && isStandalone(componentOrFactory);\n            const errorMessage = 'Cannot bootstrap as there are still asynchronous initializers running.' +\n                (standalone ? '' :\n                    ' Bootstrap components in the `ngDoBootstrap` method of the root module.');\n            throw new RuntimeError(405 /* RuntimeErrorCode.ASYNC_INITIALIZERS_STILL_RUNNING */, (typeof ngDevMode === 'undefined' || ngDevMode) && errorMessage);\n        }\n        let componentFactory;\n        if (isComponentFactory) {\n            componentFactory = componentOrFactory;\n        }\n        else {\n            const resolver = this._injector.get(ComponentFactoryResolver$1);\n            componentFactory = resolver.resolveComponentFactory(componentOrFactory);\n        }\n        this.componentTypes.push(componentFactory.componentType);\n        // Create a factory associated with the current module if it's not bound to some other\n        const ngModule = isBoundToModule(componentFactory) ? undefined : this._injector.get(NgModuleRef$1);\n        const selectorOrNode = rootSelectorOrNode || componentFactory.selector;\n        const compRef = componentFactory.create(Injector.NULL, [], selectorOrNode, ngModule);\n        const nativeElement = compRef.location.nativeElement;\n        const testability = compRef.injector.get(TESTABILITY, null);\n        testability?.registerApplication(nativeElement);\n        compRef.onDestroy(() => {\n            this.detachView(compRef.hostView);\n            remove(this.components, compRef);\n            testability?.unregisterApplication(nativeElement);\n        });\n        this._loadComponent(compRef);\n        if (typeof ngDevMode === 'undefined' || ngDevMode) {\n            const _console = this._injector.get(Console);\n            _console.log(`Angular is running in development mode.`);\n        }\n        return compRef;\n    }\n    /**\n     * Invoke this method to explicitly process change detection and its side-effects.\n     *\n     * In development mode, `tick()` also performs a second change detection cycle to ensure that no\n     * further changes are detected. If additional changes are picked up during this second cycle,\n     * bindings in the app have side-effects that cannot be resolved in a single change detection\n     * pass.\n     * In this case, Angular throws an error, since an Angular application can only have one change\n     * detection pass during which all change detection must complete.\n     */\n    tick() {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && this.warnIfDestroyed();\n        if (this._runningTick) {\n            throw new RuntimeError(101 /* RuntimeErrorCode.RECURSIVE_APPLICATION_REF_TICK */, ngDevMode && 'ApplicationRef.tick is called recursively');\n        }\n        try {\n            this._runningTick = true;\n            for (let view of this._views) {\n                view.detectChanges();\n            }\n            if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                for (let view of this._views) {\n                    view.checkNoChanges();\n                }\n            }\n        }\n        catch (e) {\n            // Attention: Don't rethrow as it could cancel subscriptions to Observables!\n            this.internalErrorHandler(e);\n        }\n        finally {\n            this._runningTick = false;\n        }\n    }\n    /**\n     * Attaches a view so that it will be dirty checked.\n     * The view will be automatically detached when it is destroyed.\n     * This will throw if the view is already attached to a ViewContainer.\n     */\n    attachView(viewRef) {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && this.warnIfDestroyed();\n        const view = viewRef;\n        this._views.push(view);\n        view.attachToAppRef(this);\n    }\n    /**\n     * Detaches a view from dirty checking again.\n     */\n    detachView(viewRef) {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && this.warnIfDestroyed();\n        const view = viewRef;\n        remove(this._views, view);\n        view.detachFromAppRef();\n    }\n    _loadComponent(componentRef) {\n        this.attachView(componentRef.hostView);\n        this.tick();\n        this.components.push(componentRef);\n        // Get the listeners lazily to prevent DI cycles.\n        const listeners = this._injector.get(APP_BOOTSTRAP_LISTENER, []);\n        if (ngDevMode && !Array.isArray(listeners)) {\n            throw new RuntimeError(-209 /* RuntimeErrorCode.INVALID_MULTI_PROVIDER */, 'Unexpected type of the `APP_BOOTSTRAP_LISTENER` token value ' +\n                `(expected an array, but got ${typeof listeners}). ` +\n                'Please check that the `APP_BOOTSTRAP_LISTENER` token is configured as a ' +\n                '`multi: true` provider.');\n        }\n        listeners.push(...this._bootstrapListeners);\n        listeners.forEach((listener) => listener(componentRef));\n    }\n    /** @internal */\n    ngOnDestroy() {\n        if (this._destroyed)\n            return;\n        try {\n            // Call all the lifecycle hooks.\n            this._destroyListeners.forEach(listener => listener());\n            // Destroy all registered views.\n            this._views.slice().forEach((view) => view.destroy());\n        }\n        finally {\n            // Indicate that this instance is destroyed.\n            this._destroyed = true;\n            // Release all references.\n            this._views = [];\n            this._bootstrapListeners = [];\n            this._destroyListeners = [];\n        }\n    }\n    /**\n     * Registers a listener to be called when an instance is destroyed.\n     *\n     * @param callback A callback function to add as a listener.\n     * @returns A function which unregisters a listener.\n     */\n    onDestroy(callback) {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && this.warnIfDestroyed();\n        this._destroyListeners.push(callback);\n        return () => remove(this._destroyListeners, callback);\n    }\n    /**\n     * Destroys an Angular application represented by this `ApplicationRef`. Calling this function\n     * will destroy the associated environment injectors as well as all the bootstrapped components\n     * with their views.\n     */\n    destroy() {\n        if (this._destroyed) {\n            throw new RuntimeError(406 /* RuntimeErrorCode.APPLICATION_REF_ALREADY_DESTROYED */, ngDevMode && 'This instance of the `ApplicationRef` has already been destroyed.');\n        }\n        const injector = this._injector;\n        // Check that this injector instance supports destroy operation.\n        if (injector.destroy && !injector.destroyed) {\n            // Destroying an underlying injector will trigger the `ngOnDestroy` lifecycle\n            // hook, which invokes the remaining cleanup actions.\n            injector.destroy();\n        }\n    }\n    /**\n     * Returns the number of attached views.\n     */\n    get viewCount() {\n        return this._views.length;\n    }\n    warnIfDestroyed() {\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && this._destroyed) {\n            console.warn(formatRuntimeError(406 /* RuntimeErrorCode.APPLICATION_REF_ALREADY_DESTROYED */, 'This instance of the `ApplicationRef` has already been destroyed.'));\n        }\n    }\n    static { this.ɵfac = function ApplicationRef_Factory(t) { return new (t || ApplicationRef)(); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: ApplicationRef, factory: ApplicationRef.ɵfac, providedIn: 'root' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(ApplicationRef, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], null, null); })();\nfunction remove(list, el) {\n    const index = list.indexOf(el);\n    if (index > -1) {\n        list.splice(index, 1);\n    }\n}\nfunction _lastDefined(args) {\n    for (let i = args.length - 1; i >= 0; i--) {\n        if (args[i] !== undefined) {\n            return args[i];\n        }\n    }\n    return undefined;\n}\n/**\n * `InjectionToken` used to configure how to call the `ErrorHandler`.\n *\n * `NgZone` is provided by default today so the default (and only) implementation for this\n * is calling `ErrorHandler.handleError` outside of the Angular zone.\n */\nconst INTERNAL_APPLICATION_ERROR_HANDLER = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'internal error handler' : '', {\n    providedIn: 'root',\n    factory: () => {\n        const userErrorHandler = inject(ErrorHandler);\n        return userErrorHandler.handleError.bind(undefined);\n    }\n});\nfunction ngZoneApplicationErrorHandlerFactory() {\n    const zone = inject(NgZone);\n    const userErrorHandler = inject(ErrorHandler);\n    return (e) => zone.runOutsideAngular(() => userErrorHandler.handleError(e));\n}\nclass NgZoneChangeDetectionScheduler {\n    constructor() {\n        this.zone = inject(NgZone);\n        this.applicationRef = inject(ApplicationRef);\n    }\n    initialize() {\n        if (this._onMicrotaskEmptySubscription) {\n            return;\n        }\n        this._onMicrotaskEmptySubscription = this.zone.onMicrotaskEmpty.subscribe({\n            next: () => {\n                this.zone.run(() => {\n                    this.applicationRef.tick();\n                });\n            }\n        });\n    }\n    ngOnDestroy() {\n        this._onMicrotaskEmptySubscription?.unsubscribe();\n    }\n    static { this.ɵfac = function NgZoneChangeDetectionScheduler_Factory(t) { return new (t || NgZoneChangeDetectionScheduler)(); }; }\n    static { this.ɵprov = /*@__PURE__*/ ɵɵdefineInjectable({ token: NgZoneChangeDetectionScheduler, factory: NgZoneChangeDetectionScheduler.ɵfac, providedIn: 'root' }); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(NgZoneChangeDetectionScheduler, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], null, null); })();\n/**\n * Internal token used to verify that `provideZoneChangeDetection` is not used\n * with the bootstrapModule API.\n */\nconst PROVIDED_NG_ZONE = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'provideZoneChangeDetection token' : '');\nfunction internalProvideZoneChangeDetection(ngZoneFactory) {\n    return [\n        { provide: NgZone, useFactory: ngZoneFactory },\n        {\n            provide: ENVIRONMENT_INITIALIZER,\n            multi: true,\n            useFactory: () => {\n                const ngZoneChangeDetectionScheduler = inject(NgZoneChangeDetectionScheduler, { optional: true });\n                if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n                    ngZoneChangeDetectionScheduler === null) {\n                    throw new RuntimeError(402 /* RuntimeErrorCode.MISSING_REQUIRED_INJECTABLE_IN_BOOTSTRAP */, `A required Injectable was not found in the dependency injection tree. ` +\n                        'If you are bootstrapping an NgModule, make sure that the `BrowserModule` is imported.');\n                }\n                return () => ngZoneChangeDetectionScheduler.initialize();\n            },\n        },\n        { provide: INTERNAL_APPLICATION_ERROR_HANDLER, useFactory: ngZoneApplicationErrorHandlerFactory },\n        { provide: ZONE_IS_STABLE_OBSERVABLE, useFactory: isStableFactory },\n    ];\n}\n/**\n * Provides `NgZone`-based change detection for the application bootstrapped using\n * `bootstrapApplication`.\n *\n * `NgZone` is already provided in applications by default. This provider allows you to configure\n * options like `eventCoalescing` in the `NgZone`.\n * This provider is not available for `platformBrowser().bootstrapModule`, which uses\n * `BootstrapOptions` instead.\n *\n * @usageNotes\n * ```typescript\n * bootstrapApplication(MyApp, {providers: [\n *   provideZoneChangeDetection({eventCoalescing: true}),\n * ]});\n * ```\n *\n * @publicApi\n * @see {@link bootstrapApplication}\n * @see {@link NgZoneOptions}\n */\nfunction provideZoneChangeDetection(options) {\n    const zoneProviders = internalProvideZoneChangeDetection(() => new NgZone(getNgZoneOptions(options)));\n    return makeEnvironmentProviders([\n        (typeof ngDevMode === 'undefined' || ngDevMode) ? { provide: PROVIDED_NG_ZONE, useValue: true } :\n            [],\n        zoneProviders,\n    ]);\n}\n\n/**\n * Returns whether Angular is in development mode.\n *\n * By default, this is true, unless `enableProdMode` is invoked prior to calling this method or the\n * application is built using the Angular CLI with the `optimization` option.\n * @see {@link cli/build ng build}\n *\n * @publicApi\n */\nfunction isDevMode() {\n    return typeof ngDevMode === 'undefined' || !!ngDevMode;\n}\n/**\n * Disable Angular's development mode, which turns off assertions and other\n * checks within the framework.\n *\n * One important assertion this disables verifies that a change detection pass\n * does not result in additional changes to any bindings (also known as\n * unidirectional data flow).\n *\n * Using this method is discouraged as the Angular CLI will set production mode when using the\n * `optimization` option.\n * @see {@link cli/build ng build}\n *\n * @publicApi\n */\nfunction enableProdMode() {\n    // The below check is there so when ngDevMode is set via terser\n    // `global['ngDevMode'] = false;` is also dropped.\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        _global['ngDevMode'] = false;\n    }\n}\n\n// Public API for render\n\n/**\n * Returns the NgModuleFactory with the given id (specified using [@NgModule.id\n * field](api/core/NgModule#id)), if it exists and has been loaded. Factories for NgModules that do\n * not specify an `id` cannot be retrieved. Throws if an NgModule cannot be found.\n * @publicApi\n * @deprecated Use `getNgModuleById` instead.\n */\nfunction getModuleFactory(id) {\n    const type = getRegisteredNgModuleType(id);\n    if (!type)\n        throw noModuleError(id);\n    return new NgModuleFactory(type);\n}\n/**\n * Returns the NgModule class with the given id (specified using [@NgModule.id\n * field](api/core/NgModule#id)), if it exists and has been loaded. Classes for NgModules that do\n * not specify an `id` cannot be retrieved. Throws if an NgModule cannot be found.\n * @publicApi\n */\nfunction getNgModuleById(id) {\n    const type = getRegisteredNgModuleType(id);\n    if (!type)\n        throw noModuleError(id);\n    return type;\n}\nfunction noModuleError(id) {\n    return new Error(`No module with ID ${id} loaded`);\n}\n\n/**\n * Base class that provides change detection functionality.\n * A change-detection tree collects all views that are to be checked for changes.\n * Use the methods to add and remove views from the tree, initiate change-detection,\n * and explicitly mark views as _dirty_, meaning that they have changed and need to be re-rendered.\n *\n * @see [Using change detection hooks](guide/lifecycle-hooks#using-change-detection-hooks)\n * @see [Defining custom change detection](guide/lifecycle-hooks#defining-custom-change-detection)\n *\n * @usageNotes\n *\n * The following examples demonstrate how to modify default change-detection behavior\n * to perform explicit detection when needed.\n *\n * ### Use `markForCheck()` with `CheckOnce` strategy\n *\n * The following example sets the `OnPush` change-detection strategy for a component\n * (`CheckOnce`, rather than the default `CheckAlways`), then forces a second check\n * after an interval.\n *\n * <code-example path=\"core/ts/change_detect/change-detection.ts\"\n * region=\"mark-for-check\"></code-example>\n *\n * ### Detach change detector to limit how often check occurs\n *\n * The following example defines a component with a large list of read-only data\n * that is expected to change constantly, many times per second.\n * To improve performance, we want to check and update the list\n * less often than the changes actually occur. To do that, we detach\n * the component's change detector and perform an explicit local check every five seconds.\n *\n * <code-example path=\"core/ts/change_detect/change-detection.ts\" region=\"detach\"></code-example>\n *\n *\n * ### Reattaching a detached component\n *\n * The following example creates a component displaying live data.\n * The component detaches its change detector from the main change detector tree\n * when the `live` property is set to false, and reattaches it when the property\n * becomes true.\n *\n * <code-example path=\"core/ts/change_detect/change-detection.ts\" region=\"reattach\"></code-example>\n *\n * @publicApi\n */\nclass ChangeDetectorRef {\n    /**\n     * @internal\n     * @nocollapse\n     */\n    static { this.__NG_ELEMENT_ID__ = injectChangeDetectorRef; }\n}\n/** Returns a ChangeDetectorRef (a.k.a. a ViewRef) */\nfunction injectChangeDetectorRef(flags) {\n    return createViewRef(getCurrentTNode(), getLView(), (flags & 16 /* InternalInjectFlags.ForPipe */) === 16 /* InternalInjectFlags.ForPipe */);\n}\n/**\n * Creates a ViewRef and stores it on the injector as ChangeDetectorRef (public alias).\n *\n * @param tNode The node that is requesting a ChangeDetectorRef\n * @param lView The view to which the node belongs\n * @param isPipe Whether the view is being injected into a pipe.\n * @returns The ChangeDetectorRef to use\n */\nfunction createViewRef(tNode, lView, isPipe) {\n    if (isComponentHost(tNode) && !isPipe) {\n        // The LView represents the location where the component is declared.\n        // Instead we want the LView for the component View and so we need to look it up.\n        const componentView = getComponentLViewByIndex(tNode.index, lView); // look down\n        return new ViewRef$1(componentView, componentView);\n    }\n    else if (tNode.type & (3 /* TNodeType.AnyRNode */ | 12 /* TNodeType.AnyContainer */ | 32 /* TNodeType.Icu */)) {\n        // The LView represents the location where the injection is requested from.\n        // We need to locate the containing LView (in case where the `lView` is an embedded view)\n        const hostComponentView = lView[DECLARATION_COMPONENT_VIEW]; // look up\n        return new ViewRef$1(hostComponentView, lView);\n    }\n    return null;\n}\n\n/**\n * Represents an Angular [view](guide/glossary#view \"Definition\").\n *\n * @see {@link ChangeDetectorRef#usage-notes Change detection usage}\n *\n * @publicApi\n */\nclass ViewRef extends ChangeDetectorRef {\n}\n/**\n * Represents an Angular [view](guide/glossary#view) in a view container.\n * An [embedded view](guide/glossary#view-hierarchy) can be referenced from a component\n * other than the hosting component whose template defines it, or it can be defined\n * independently by a `TemplateRef`.\n *\n * Properties of elements in a view can change, but the structure (number and order) of elements in\n * a view cannot. Change the structure of elements by inserting, moving, or\n * removing nested views in a view container.\n *\n * @see {@link ViewContainerRef}\n *\n * @usageNotes\n *\n * The following template breaks down into two separate `TemplateRef` instances,\n * an outer one and an inner one.\n *\n * ```\n * Count: {{items.length}}\n * <ul>\n *   <li *ngFor=\"let  item of items\">{{item}}</li>\n * </ul>\n * ```\n *\n * This is the outer `TemplateRef`:\n *\n * ```\n * Count: {{items.length}}\n * <ul>\n *   <ng-template ngFor let-item [ngForOf]=\"items\"></ng-template>\n * </ul>\n * ```\n *\n * This is the inner `TemplateRef`:\n *\n * ```\n *   <li>{{item}}</li>\n * ```\n *\n * The outer and inner `TemplateRef` instances are assembled into views as follows:\n *\n * ```\n * <!-- ViewRef: outer-0 -->\n * Count: 2\n * <ul>\n *   <ng-template view-container-ref></ng-template>\n *   <!-- ViewRef: inner-1 --><li>first</li><!-- /ViewRef: inner-1 -->\n *   <!-- ViewRef: inner-2 --><li>second</li><!-- /ViewRef: inner-2 -->\n * </ul>\n * <!-- /ViewRef: outer-0 -->\n * ```\n * @publicApi\n */\nclass EmbeddedViewRef extends ViewRef {\n}\n\n// Public API for compiler\n\n// This file exists for easily patching NgModuleFactoryLoader in g3\nvar ng_module_factory_loader_impl = {};\n\n/**\n * @publicApi\n */\nclass DebugEventListener {\n    constructor(name, callback) {\n        this.name = name;\n        this.callback = callback;\n    }\n}\n/**\n * @publicApi\n */\nfunction asNativeElements(debugEls) {\n    return debugEls.map((el) => el.nativeElement);\n}\n/**\n * @publicApi\n */\nclass DebugNode {\n    constructor(nativeNode) {\n        this.nativeNode = nativeNode;\n    }\n    /**\n     * The `DebugElement` parent. Will be `null` if this is the root element.\n     */\n    get parent() {\n        const parent = this.nativeNode.parentNode;\n        return parent ? new DebugElement(parent) : null;\n    }\n    /**\n     * The host dependency injector. For example, the root element's component instance injector.\n     */\n    get injector() {\n        return getInjector(this.nativeNode);\n    }\n    /**\n     * The element's own component instance, if it has one.\n     */\n    get componentInstance() {\n        const nativeElement = this.nativeNode;\n        return nativeElement &&\n            (getComponent(nativeElement) || getOwningComponent(nativeElement));\n    }\n    /**\n     * An object that provides parent context for this element. Often an ancestor component instance\n     * that governs this element.\n     *\n     * When an element is repeated within *ngFor, the context is an `NgForOf` whose `$implicit`\n     * property is the value of the row instance value. For example, the `hero` in `*ngFor=\"let hero\n     * of heroes\"`.\n     */\n    get context() {\n        return getComponent(this.nativeNode) || getContext(this.nativeNode);\n    }\n    /**\n     * The callbacks attached to the component's @Output properties and/or the element's event\n     * properties.\n     */\n    get listeners() {\n        return getListeners(this.nativeNode).filter(listener => listener.type === 'dom');\n    }\n    /**\n     * Dictionary of objects associated with template local variables (e.g. #foo), keyed by the local\n     * variable name.\n     */\n    get references() {\n        return getLocalRefs(this.nativeNode);\n    }\n    /**\n     * This component's injector lookup tokens. Includes the component itself plus the tokens that the\n     * component lists in its providers metadata.\n     */\n    get providerTokens() {\n        return getInjectionTokens(this.nativeNode);\n    }\n}\n/**\n * @publicApi\n *\n * @see [Component testing scenarios](guide/testing-components-scenarios)\n * @see [Basics of testing components](guide/testing-components-basics)\n * @see [Testing utility APIs](guide/testing-utility-apis)\n */\nclass DebugElement extends DebugNode {\n    constructor(nativeNode) {\n        ngDevMode && assertDomNode(nativeNode);\n        super(nativeNode);\n    }\n    /**\n     * The underlying DOM element at the root of the component.\n     */\n    get nativeElement() {\n        return this.nativeNode.nodeType == Node.ELEMENT_NODE ? this.nativeNode : null;\n    }\n    /**\n     * The element tag name, if it is an element.\n     */\n    get name() {\n        const context = getLContext(this.nativeNode);\n        const lView = context ? context.lView : null;\n        if (lView !== null) {\n            const tData = lView[TVIEW].data;\n            const tNode = tData[context.nodeIndex];\n            return tNode.value;\n        }\n        else {\n            return this.nativeNode.nodeName;\n        }\n    }\n    /**\n     *  Gets a map of property names to property values for an element.\n     *\n     *  This map includes:\n     *  - Regular property bindings (e.g. `[id]=\"id\"`)\n     *  - Host property bindings (e.g. `host: { '[id]': \"id\" }`)\n     *  - Interpolated property bindings (e.g. `id=\"{{ value }}\")\n     *\n     *  It does not include:\n     *  - input property bindings (e.g. `[myCustomInput]=\"value\"`)\n     *  - attribute bindings (e.g. `[attr.role]=\"menu\"`)\n     */\n    get properties() {\n        const context = getLContext(this.nativeNode);\n        const lView = context ? context.lView : null;\n        if (lView === null) {\n            return {};\n        }\n        const tData = lView[TVIEW].data;\n        const tNode = tData[context.nodeIndex];\n        const properties = {};\n        // Collect properties from the DOM.\n        copyDomProperties(this.nativeElement, properties);\n        // Collect properties from the bindings. This is needed for animation renderer which has\n        // synthetic properties which don't get reflected into the DOM.\n        collectPropertyBindings(properties, tNode, lView, tData);\n        return properties;\n    }\n    /**\n     *  A map of attribute names to attribute values for an element.\n     */\n    get attributes() {\n        const attributes = {};\n        const element = this.nativeElement;\n        if (!element) {\n            return attributes;\n        }\n        const context = getLContext(element);\n        const lView = context ? context.lView : null;\n        if (lView === null) {\n            return {};\n        }\n        const tNodeAttrs = lView[TVIEW].data[context.nodeIndex].attrs;\n        const lowercaseTNodeAttrs = [];\n        // For debug nodes we take the element's attribute directly from the DOM since it allows us\n        // to account for ones that weren't set via bindings (e.g. ViewEngine keeps track of the ones\n        // that are set through `Renderer2`). The problem is that the browser will lowercase all names,\n        // however since we have the attributes already on the TNode, we can preserve the case by going\n        // through them once, adding them to the `attributes` map and putting their lower-cased name\n        // into an array. Afterwards when we're going through the native DOM attributes, we can check\n        // whether we haven't run into an attribute already through the TNode.\n        if (tNodeAttrs) {\n            let i = 0;\n            while (i < tNodeAttrs.length) {\n                const attrName = tNodeAttrs[i];\n                // Stop as soon as we hit a marker. We only care about the regular attributes. Everything\n                // else will be handled below when we read the final attributes off the DOM.\n                if (typeof attrName !== 'string')\n                    break;\n                const attrValue = tNodeAttrs[i + 1];\n                attributes[attrName] = attrValue;\n                lowercaseTNodeAttrs.push(attrName.toLowerCase());\n                i += 2;\n            }\n        }\n        for (const attr of element.attributes) {\n            // Make sure that we don't assign the same attribute both in its\n            // case-sensitive form and the lower-cased one from the browser.\n            if (!lowercaseTNodeAttrs.includes(attr.name)) {\n                attributes[attr.name] = attr.value;\n            }\n        }\n        return attributes;\n    }\n    /**\n     * The inline styles of the DOM element.\n     *\n     * Will be `null` if there is no `style` property on the underlying DOM element.\n     *\n     * @see [ElementCSSInlineStyle](https://developer.mozilla.org/en-US/docs/Web/API/ElementCSSInlineStyle/style)\n     */\n    get styles() {\n        if (this.nativeElement && this.nativeElement.style) {\n            return this.nativeElement.style;\n        }\n        return {};\n    }\n    /**\n     * A map containing the class names on the element as keys.\n     *\n     * This map is derived from the `className` property of the DOM element.\n     *\n     * Note: The values of this object will always be `true`. The class key will not appear in the KV\n     * object if it does not exist on the element.\n     *\n     * @see [Element.className](https://developer.mozilla.org/en-US/docs/Web/API/Element/className)\n     */\n    get classes() {\n        const result = {};\n        const element = this.nativeElement;\n        // SVG elements return an `SVGAnimatedString` instead of a plain string for the `className`.\n        const className = element.className;\n        const classes = typeof className !== 'string' ? className.baseVal.split(' ') : className.split(' ');\n        classes.forEach((value) => result[value] = true);\n        return result;\n    }\n    /**\n     * The `childNodes` of the DOM element as a `DebugNode` array.\n     *\n     * @see [Node.childNodes](https://developer.mozilla.org/en-US/docs/Web/API/Node/childNodes)\n     */\n    get childNodes() {\n        const childNodes = this.nativeNode.childNodes;\n        const children = [];\n        for (let i = 0; i < childNodes.length; i++) {\n            const element = childNodes[i];\n            children.push(getDebugNode(element));\n        }\n        return children;\n    }\n    /**\n     * The immediate `DebugElement` children. Walk the tree by descending through `children`.\n     */\n    get children() {\n        const nativeElement = this.nativeElement;\n        if (!nativeElement)\n            return [];\n        const childNodes = nativeElement.children;\n        const children = [];\n        for (let i = 0; i < childNodes.length; i++) {\n            const element = childNodes[i];\n            children.push(getDebugNode(element));\n        }\n        return children;\n    }\n    /**\n     * @returns the first `DebugElement` that matches the predicate at any depth in the subtree.\n     */\n    query(predicate) {\n        const results = this.queryAll(predicate);\n        return results[0] || null;\n    }\n    /**\n     * @returns All `DebugElement` matches for the predicate at any depth in the subtree.\n     */\n    queryAll(predicate) {\n        const matches = [];\n        _queryAll(this, predicate, matches, true);\n        return matches;\n    }\n    /**\n     * @returns All `DebugNode` matches for the predicate at any depth in the subtree.\n     */\n    queryAllNodes(predicate) {\n        const matches = [];\n        _queryAll(this, predicate, matches, false);\n        return matches;\n    }\n    /**\n     * Triggers the event by its name if there is a corresponding listener in the element's\n     * `listeners` collection.\n     *\n     * If the event lacks a listener or there's some other problem, consider\n     * calling `nativeElement.dispatchEvent(eventObject)`.\n     *\n     * @param eventName The name of the event to trigger\n     * @param eventObj The _event object_ expected by the handler\n     *\n     * @see [Testing components scenarios](guide/testing-components-scenarios#trigger-event-handler)\n     */\n    triggerEventHandler(eventName, eventObj) {\n        const node = this.nativeNode;\n        const invokedListeners = [];\n        this.listeners.forEach(listener => {\n            if (listener.name === eventName) {\n                const callback = listener.callback;\n                callback.call(node, eventObj);\n                invokedListeners.push(callback);\n            }\n        });\n        // We need to check whether `eventListeners` exists, because it's something\n        // that Zone.js only adds to `EventTarget` in browser environments.\n        if (typeof node.eventListeners === 'function') {\n            // Note that in Ivy we wrap event listeners with a call to `event.preventDefault` in some\n            // cases. We use '__ngUnwrap__' as a special token that gives us access to the actual event\n            // listener.\n            node.eventListeners(eventName).forEach((listener) => {\n                // In order to ensure that we can detect the special __ngUnwrap__ token described above, we\n                // use `toString` on the listener and see if it contains the token. We use this approach to\n                // ensure that it still worked with compiled code since it cannot remove or rename string\n                // literals. We also considered using a special function name (i.e. if(listener.name ===\n                // special)) but that was more cumbersome and we were also concerned the compiled code could\n                // strip the name, turning the condition in to (\"\" === \"\") and always returning true.\n                if (listener.toString().indexOf('__ngUnwrap__') !== -1) {\n                    const unwrappedListener = listener('__ngUnwrap__');\n                    return invokedListeners.indexOf(unwrappedListener) === -1 &&\n                        unwrappedListener.call(node, eventObj);\n                }\n            });\n        }\n    }\n}\nfunction copyDomProperties(element, properties) {\n    if (element) {\n        // Skip own properties (as those are patched)\n        let obj = Object.getPrototypeOf(element);\n        const NodePrototype = Node.prototype;\n        while (obj !== null && obj !== NodePrototype) {\n            const descriptors = Object.getOwnPropertyDescriptors(obj);\n            for (let key in descriptors) {\n                if (!key.startsWith('__') && !key.startsWith('on')) {\n                    // don't include properties starting with `__` and `on`.\n                    // `__` are patched values which should not be included.\n                    // `on` are listeners which also should not be included.\n                    const value = element[key];\n                    if (isPrimitiveValue(value)) {\n                        properties[key] = value;\n                    }\n                }\n            }\n            obj = Object.getPrototypeOf(obj);\n        }\n    }\n}\nfunction isPrimitiveValue(value) {\n    return typeof value === 'string' || typeof value === 'boolean' || typeof value === 'number' ||\n        value === null;\n}\nfunction _queryAll(parentElement, predicate, matches, elementsOnly) {\n    const context = getLContext(parentElement.nativeNode);\n    const lView = context ? context.lView : null;\n    if (lView !== null) {\n        const parentTNode = lView[TVIEW].data[context.nodeIndex];\n        _queryNodeChildren(parentTNode, lView, predicate, matches, elementsOnly, parentElement.nativeNode);\n    }\n    else {\n        // If the context is null, then `parentElement` was either created with Renderer2 or native DOM\n        // APIs.\n        _queryNativeNodeDescendants(parentElement.nativeNode, predicate, matches, elementsOnly);\n    }\n}\n/**\n * Recursively match the current TNode against the predicate, and goes on with the next ones.\n *\n * @param tNode the current TNode\n * @param lView the LView of this TNode\n * @param predicate the predicate to match\n * @param matches the list of positive matches\n * @param elementsOnly whether only elements should be searched\n * @param rootNativeNode the root native node on which predicate should not be matched\n */\nfunction _queryNodeChildren(tNode, lView, predicate, matches, elementsOnly, rootNativeNode) {\n    ngDevMode && assertTNodeForLView(tNode, lView);\n    const nativeNode = getNativeByTNodeOrNull(tNode, lView);\n    // For each type of TNode, specific logic is executed.\n    if (tNode.type & (3 /* TNodeType.AnyRNode */ | 8 /* TNodeType.ElementContainer */)) {\n        // Case 1: the TNode is an element\n        // The native node has to be checked.\n        _addQueryMatch(nativeNode, predicate, matches, elementsOnly, rootNativeNode);\n        if (isComponentHost(tNode)) {\n            // If the element is the host of a component, then all nodes in its view have to be processed.\n            // Note: the component's content (tNode.child) will be processed from the insertion points.\n            const componentView = getComponentLViewByIndex(tNode.index, lView);\n            if (componentView && componentView[TVIEW].firstChild) {\n                _queryNodeChildren(componentView[TVIEW].firstChild, componentView, predicate, matches, elementsOnly, rootNativeNode);\n            }\n        }\n        else {\n            if (tNode.child) {\n                // Otherwise, its children have to be processed.\n                _queryNodeChildren(tNode.child, lView, predicate, matches, elementsOnly, rootNativeNode);\n            }\n            // We also have to query the DOM directly in order to catch elements inserted through\n            // Renderer2. Note that this is __not__ optimal, because we're walking similar trees multiple\n            // times. ViewEngine could do it more efficiently, because all the insertions go through\n            // Renderer2, however that's not the case in Ivy. This approach is being used because:\n            // 1. Matching the ViewEngine behavior would mean potentially introducing a dependency\n            //    from `Renderer2` to Ivy which could bring Ivy code into ViewEngine.\n            // 2. It allows us to capture nodes that were inserted directly via the DOM.\n            nativeNode && _queryNativeNodeDescendants(nativeNode, predicate, matches, elementsOnly);\n        }\n        // In all cases, if a dynamic container exists for this node, each view inside it has to be\n        // processed.\n        const nodeOrContainer = lView[tNode.index];\n        if (isLContainer(nodeOrContainer)) {\n            _queryNodeChildrenInContainer(nodeOrContainer, predicate, matches, elementsOnly, rootNativeNode);\n        }\n    }\n    else if (tNode.type & 4 /* TNodeType.Container */) {\n        // Case 2: the TNode is a container\n        // The native node has to be checked.\n        const lContainer = lView[tNode.index];\n        _addQueryMatch(lContainer[NATIVE], predicate, matches, elementsOnly, rootNativeNode);\n        // Each view inside the container has to be processed.\n        _queryNodeChildrenInContainer(lContainer, predicate, matches, elementsOnly, rootNativeNode);\n    }\n    else if (tNode.type & 16 /* TNodeType.Projection */) {\n        // Case 3: the TNode is a projection insertion point (i.e. a <ng-content>).\n        // The nodes projected at this location all need to be processed.\n        const componentView = lView[DECLARATION_COMPONENT_VIEW];\n        const componentHost = componentView[T_HOST];\n        const head = componentHost.projection[tNode.projection];\n        if (Array.isArray(head)) {\n            for (let nativeNode of head) {\n                _addQueryMatch(nativeNode, predicate, matches, elementsOnly, rootNativeNode);\n            }\n        }\n        else if (head) {\n            const nextLView = componentView[PARENT];\n            const nextTNode = nextLView[TVIEW].data[head.index];\n            _queryNodeChildren(nextTNode, nextLView, predicate, matches, elementsOnly, rootNativeNode);\n        }\n    }\n    else if (tNode.child) {\n        // Case 4: the TNode is a view.\n        _queryNodeChildren(tNode.child, lView, predicate, matches, elementsOnly, rootNativeNode);\n    }\n    // We don't want to go to the next sibling of the root node.\n    if (rootNativeNode !== nativeNode) {\n        // To determine the next node to be processed, we need to use the next or the projectionNext\n        // link, depending on whether the current node has been projected.\n        const nextTNode = (tNode.flags & 2 /* TNodeFlags.isProjected */) ? tNode.projectionNext : tNode.next;\n        if (nextTNode) {\n            _queryNodeChildren(nextTNode, lView, predicate, matches, elementsOnly, rootNativeNode);\n        }\n    }\n}\n/**\n * Process all TNodes in a given container.\n *\n * @param lContainer the container to be processed\n * @param predicate the predicate to match\n * @param matches the list of positive matches\n * @param elementsOnly whether only elements should be searched\n * @param rootNativeNode the root native node on which predicate should not be matched\n */\nfunction _queryNodeChildrenInContainer(lContainer, predicate, matches, elementsOnly, rootNativeNode) {\n    for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n        const childView = lContainer[i];\n        const firstChild = childView[TVIEW].firstChild;\n        if (firstChild) {\n            _queryNodeChildren(firstChild, childView, predicate, matches, elementsOnly, rootNativeNode);\n        }\n    }\n}\n/**\n * Match the current native node against the predicate.\n *\n * @param nativeNode the current native node\n * @param predicate the predicate to match\n * @param matches the list of positive matches\n * @param elementsOnly whether only elements should be searched\n * @param rootNativeNode the root native node on which predicate should not be matched\n */\nfunction _addQueryMatch(nativeNode, predicate, matches, elementsOnly, rootNativeNode) {\n    if (rootNativeNode !== nativeNode) {\n        const debugNode = getDebugNode(nativeNode);\n        if (!debugNode) {\n            return;\n        }\n        // Type of the \"predicate and \"matches\" array are set based on the value of\n        // the \"elementsOnly\" parameter. TypeScript is not able to properly infer these\n        // types with generics, so we manually cast the parameters accordingly.\n        if (elementsOnly && (debugNode instanceof DebugElement) && predicate(debugNode) &&\n            matches.indexOf(debugNode) === -1) {\n            matches.push(debugNode);\n        }\n        else if (!elementsOnly && predicate(debugNode) &&\n            matches.indexOf(debugNode) === -1) {\n            matches.push(debugNode);\n        }\n    }\n}\n/**\n * Match all the descendants of a DOM node against a predicate.\n *\n * @param nativeNode the current native node\n * @param predicate the predicate to match\n * @param matches the list where matches are stored\n * @param elementsOnly whether only elements should be searched\n */\nfunction _queryNativeNodeDescendants(parentNode, predicate, matches, elementsOnly) {\n    const nodes = parentNode.childNodes;\n    const length = nodes.length;\n    for (let i = 0; i < length; i++) {\n        const node = nodes[i];\n        const debugNode = getDebugNode(node);\n        if (debugNode) {\n            if (elementsOnly && (debugNode instanceof DebugElement) && predicate(debugNode) &&\n                matches.indexOf(debugNode) === -1) {\n                matches.push(debugNode);\n            }\n            else if (!elementsOnly && predicate(debugNode) &&\n                matches.indexOf(debugNode) === -1) {\n                matches.push(debugNode);\n            }\n            _queryNativeNodeDescendants(node, predicate, matches, elementsOnly);\n        }\n    }\n}\n/**\n * Iterates through the property bindings for a given node and generates\n * a map of property names to values. This map only contains property bindings\n * defined in templates, not in host bindings.\n */\nfunction collectPropertyBindings(properties, tNode, lView, tData) {\n    let bindingIndexes = tNode.propertyBindings;\n    if (bindingIndexes !== null) {\n        for (let i = 0; i < bindingIndexes.length; i++) {\n            const bindingIndex = bindingIndexes[i];\n            const propMetadata = tData[bindingIndex];\n            const metadataParts = propMetadata.split(INTERPOLATION_DELIMITER);\n            const propertyName = metadataParts[0];\n            if (metadataParts.length > 1) {\n                let value = metadataParts[1];\n                for (let j = 1; j < metadataParts.length - 1; j++) {\n                    value += renderStringify(lView[bindingIndex + j - 1]) + metadataParts[j + 1];\n                }\n                properties[propertyName] = value;\n            }\n            else {\n                properties[propertyName] = lView[bindingIndex];\n            }\n        }\n    }\n}\n// Need to keep the nodes in a global Map so that multiple angular apps are supported.\nconst _nativeNodeToDebugNode = new Map();\nconst NG_DEBUG_PROPERTY = '__ng_debug__';\n/**\n * @publicApi\n */\nfunction getDebugNode(nativeNode) {\n    if (nativeNode instanceof Node) {\n        if (!(nativeNode.hasOwnProperty(NG_DEBUG_PROPERTY))) {\n            nativeNode[NG_DEBUG_PROPERTY] = nativeNode.nodeType == Node.ELEMENT_NODE ?\n                new DebugElement(nativeNode) :\n                new DebugNode(nativeNode);\n        }\n        return nativeNode[NG_DEBUG_PROPERTY];\n    }\n    return null;\n}\nfunction getAllDebugNodes() {\n    return Array.from(_nativeNodeToDebugNode.values());\n}\nfunction indexDebugNode(node) {\n    _nativeNodeToDebugNode.set(node.nativeNode, node);\n}\nfunction removeDebugNodeFromIndex(node) {\n    _nativeNodeToDebugNode.delete(node.nativeNode);\n}\n\nclass DefaultIterableDifferFactory {\n    constructor() { }\n    supports(obj) {\n        return isListLikeIterable(obj);\n    }\n    create(trackByFn) {\n        return new DefaultIterableDiffer(trackByFn);\n    }\n}\nconst trackByIdentity = (index, item) => item;\n/**\n * @deprecated v4.0.0 - Should not be part of public API.\n * @publicApi\n */\nclass DefaultIterableDiffer {\n    constructor(trackByFn) {\n        this.length = 0;\n        // Keeps track of the used records at any point in time (during & across `_check()` calls)\n        this._linkedRecords = null;\n        // Keeps track of the removed records at any point in time during `_check()` calls.\n        this._unlinkedRecords = null;\n        this._previousItHead = null;\n        this._itHead = null;\n        this._itTail = null;\n        this._additionsHead = null;\n        this._additionsTail = null;\n        this._movesHead = null;\n        this._movesTail = null;\n        this._removalsHead = null;\n        this._removalsTail = null;\n        // Keeps track of records where custom track by is the same, but item identity has changed\n        this._identityChangesHead = null;\n        this._identityChangesTail = null;\n        this._trackByFn = trackByFn || trackByIdentity;\n    }\n    forEachItem(fn) {\n        let record;\n        for (record = this._itHead; record !== null; record = record._next) {\n            fn(record);\n        }\n    }\n    forEachOperation(fn) {\n        let nextIt = this._itHead;\n        let nextRemove = this._removalsHead;\n        let addRemoveOffset = 0;\n        let moveOffsets = null;\n        while (nextIt || nextRemove) {\n            // Figure out which is the next record to process\n            // Order: remove, add, move\n            const record = !nextRemove ||\n                nextIt &&\n                    nextIt.currentIndex <\n                        getPreviousIndex(nextRemove, addRemoveOffset, moveOffsets) ?\n                nextIt :\n                nextRemove;\n            const adjPreviousIndex = getPreviousIndex(record, addRemoveOffset, moveOffsets);\n            const currentIndex = record.currentIndex;\n            // consume the item, and adjust the addRemoveOffset and update moveDistance if necessary\n            if (record === nextRemove) {\n                addRemoveOffset--;\n                nextRemove = nextRemove._nextRemoved;\n            }\n            else {\n                nextIt = nextIt._next;\n                if (record.previousIndex == null) {\n                    addRemoveOffset++;\n                }\n                else {\n                    // INVARIANT:  currentIndex < previousIndex\n                    if (!moveOffsets)\n                        moveOffsets = [];\n                    const localMovePreviousIndex = adjPreviousIndex - addRemoveOffset;\n                    const localCurrentIndex = currentIndex - addRemoveOffset;\n                    if (localMovePreviousIndex != localCurrentIndex) {\n                        for (let i = 0; i < localMovePreviousIndex; i++) {\n                            const offset = i < moveOffsets.length ? moveOffsets[i] : (moveOffsets[i] = 0);\n                            const index = offset + i;\n                            if (localCurrentIndex <= index && index < localMovePreviousIndex) {\n                                moveOffsets[i] = offset + 1;\n                            }\n                        }\n                        const previousIndex = record.previousIndex;\n                        moveOffsets[previousIndex] = localCurrentIndex - localMovePreviousIndex;\n                    }\n                }\n            }\n            if (adjPreviousIndex !== currentIndex) {\n                fn(record, adjPreviousIndex, currentIndex);\n            }\n        }\n    }\n    forEachPreviousItem(fn) {\n        let record;\n        for (record = this._previousItHead; record !== null; record = record._nextPrevious) {\n            fn(record);\n        }\n    }\n    forEachAddedItem(fn) {\n        let record;\n        for (record = this._additionsHead; record !== null; record = record._nextAdded) {\n            fn(record);\n        }\n    }\n    forEachMovedItem(fn) {\n        let record;\n        for (record = this._movesHead; record !== null; record = record._nextMoved) {\n            fn(record);\n        }\n    }\n    forEachRemovedItem(fn) {\n        let record;\n        for (record = this._removalsHead; record !== null; record = record._nextRemoved) {\n            fn(record);\n        }\n    }\n    forEachIdentityChange(fn) {\n        let record;\n        for (record = this._identityChangesHead; record !== null; record = record._nextIdentityChange) {\n            fn(record);\n        }\n    }\n    diff(collection) {\n        if (collection == null)\n            collection = [];\n        if (!isListLikeIterable(collection)) {\n            throw new RuntimeError(900 /* RuntimeErrorCode.INVALID_DIFFER_INPUT */, ngDevMode &&\n                `Error trying to diff '${stringify(collection)}'. Only arrays and iterables are allowed`);\n        }\n        if (this.check(collection)) {\n            return this;\n        }\n        else {\n            return null;\n        }\n    }\n    onDestroy() { }\n    check(collection) {\n        this._reset();\n        let record = this._itHead;\n        let mayBeDirty = false;\n        let index;\n        let item;\n        let itemTrackBy;\n        if (Array.isArray(collection)) {\n            this.length = collection.length;\n            for (let index = 0; index < this.length; index++) {\n                item = collection[index];\n                itemTrackBy = this._trackByFn(index, item);\n                if (record === null || !Object.is(record.trackById, itemTrackBy)) {\n                    record = this._mismatch(record, item, itemTrackBy, index);\n                    mayBeDirty = true;\n                }\n                else {\n                    if (mayBeDirty) {\n                        // TODO(misko): can we limit this to duplicates only?\n                        record = this._verifyReinsertion(record, item, itemTrackBy, index);\n                    }\n                    if (!Object.is(record.item, item))\n                        this._addIdentityChange(record, item);\n                }\n                record = record._next;\n            }\n        }\n        else {\n            index = 0;\n            iterateListLike(collection, (item) => {\n                itemTrackBy = this._trackByFn(index, item);\n                if (record === null || !Object.is(record.trackById, itemTrackBy)) {\n                    record = this._mismatch(record, item, itemTrackBy, index);\n                    mayBeDirty = true;\n                }\n                else {\n                    if (mayBeDirty) {\n                        // TODO(misko): can we limit this to duplicates only?\n                        record = this._verifyReinsertion(record, item, itemTrackBy, index);\n                    }\n                    if (!Object.is(record.item, item))\n                        this._addIdentityChange(record, item);\n                }\n                record = record._next;\n                index++;\n            });\n            this.length = index;\n        }\n        this._truncate(record);\n        // @ts-expect-error overwriting a readonly member\n        this.collection = collection;\n        return this.isDirty;\n    }\n    /* CollectionChanges is considered dirty if it has any additions, moves, removals, or identity\n     * changes.\n     */\n    get isDirty() {\n        return this._additionsHead !== null || this._movesHead !== null ||\n            this._removalsHead !== null || this._identityChangesHead !== null;\n    }\n    /**\n     * Reset the state of the change objects to show no changes. This means set previousKey to\n     * currentKey, and clear all of the queues (additions, moves, removals).\n     * Set the previousIndexes of moved and added items to their currentIndexes\n     * Reset the list of additions, moves and removals\n     *\n     * @internal\n     */\n    _reset() {\n        if (this.isDirty) {\n            let record;\n            for (record = this._previousItHead = this._itHead; record !== null; record = record._next) {\n                record._nextPrevious = record._next;\n            }\n            for (record = this._additionsHead; record !== null; record = record._nextAdded) {\n                record.previousIndex = record.currentIndex;\n            }\n            this._additionsHead = this._additionsTail = null;\n            for (record = this._movesHead; record !== null; record = record._nextMoved) {\n                record.previousIndex = record.currentIndex;\n            }\n            this._movesHead = this._movesTail = null;\n            this._removalsHead = this._removalsTail = null;\n            this._identityChangesHead = this._identityChangesTail = null;\n            // TODO(vicb): when assert gets supported\n            // assert(!this.isDirty);\n        }\n    }\n    /**\n     * This is the core function which handles differences between collections.\n     *\n     * - `record` is the record which we saw at this position last time. If null then it is a new\n     *   item.\n     * - `item` is the current item in the collection\n     * - `index` is the position of the item in the collection\n     *\n     * @internal\n     */\n    _mismatch(record, item, itemTrackBy, index) {\n        // The previous record after which we will append the current one.\n        let previousRecord;\n        if (record === null) {\n            previousRecord = this._itTail;\n        }\n        else {\n            previousRecord = record._prev;\n            // Remove the record from the collection since we know it does not match the item.\n            this._remove(record);\n        }\n        // See if we have evicted the item, which used to be at some anterior position of _itHead list.\n        record = this._unlinkedRecords === null ? null : this._unlinkedRecords.get(itemTrackBy, null);\n        if (record !== null) {\n            // It is an item which we have evicted earlier: reinsert it back into the list.\n            // But first we need to check if identity changed, so we can update in view if necessary.\n            if (!Object.is(record.item, item))\n                this._addIdentityChange(record, item);\n            this._reinsertAfter(record, previousRecord, index);\n        }\n        else {\n            // Attempt to see if the item is at some posterior position of _itHead list.\n            record = this._linkedRecords === null ? null : this._linkedRecords.get(itemTrackBy, index);\n            if (record !== null) {\n                // We have the item in _itHead at/after `index` position. We need to move it forward in the\n                // collection.\n                // But first we need to check if identity changed, so we can update in view if necessary.\n                if (!Object.is(record.item, item))\n                    this._addIdentityChange(record, item);\n                this._moveAfter(record, previousRecord, index);\n            }\n            else {\n                // It is a new item: add it.\n                record =\n                    this._addAfter(new IterableChangeRecord_(item, itemTrackBy), previousRecord, index);\n            }\n        }\n        return record;\n    }\n    /**\n     * This check is only needed if an array contains duplicates. (Short circuit of nothing dirty)\n     *\n     * Use case: `[a, a]` => `[b, a, a]`\n     *\n     * If we did not have this check then the insertion of `b` would:\n     *   1) evict first `a`\n     *   2) insert `b` at `0` index.\n     *   3) leave `a` at index `1` as is. <-- this is wrong!\n     *   3) reinsert `a` at index 2. <-- this is wrong!\n     *\n     * The correct behavior is:\n     *   1) evict first `a`\n     *   2) insert `b` at `0` index.\n     *   3) reinsert `a` at index 1.\n     *   3) move `a` at from `1` to `2`.\n     *\n     *\n     * Double check that we have not evicted a duplicate item. We need to check if the item type may\n     * have already been removed:\n     * The insertion of b will evict the first 'a'. If we don't reinsert it now it will be reinserted\n     * at the end. Which will show up as the two 'a's switching position. This is incorrect, since a\n     * better way to think of it is as insert of 'b' rather then switch 'a' with 'b' and then add 'a'\n     * at the end.\n     *\n     * @internal\n     */\n    _verifyReinsertion(record, item, itemTrackBy, index) {\n        let reinsertRecord = this._unlinkedRecords === null ? null : this._unlinkedRecords.get(itemTrackBy, null);\n        if (reinsertRecord !== null) {\n            record = this._reinsertAfter(reinsertRecord, record._prev, index);\n        }\n        else if (record.currentIndex != index) {\n            record.currentIndex = index;\n            this._addToMoves(record, index);\n        }\n        return record;\n    }\n    /**\n     * Get rid of any excess {@link IterableChangeRecord_}s from the previous collection\n     *\n     * - `record` The first excess {@link IterableChangeRecord_}.\n     *\n     * @internal\n     */\n    _truncate(record) {\n        // Anything after that needs to be removed;\n        while (record !== null) {\n            const nextRecord = record._next;\n            this._addToRemovals(this._unlink(record));\n            record = nextRecord;\n        }\n        if (this._unlinkedRecords !== null) {\n            this._unlinkedRecords.clear();\n        }\n        if (this._additionsTail !== null) {\n            this._additionsTail._nextAdded = null;\n        }\n        if (this._movesTail !== null) {\n            this._movesTail._nextMoved = null;\n        }\n        if (this._itTail !== null) {\n            this._itTail._next = null;\n        }\n        if (this._removalsTail !== null) {\n            this._removalsTail._nextRemoved = null;\n        }\n        if (this._identityChangesTail !== null) {\n            this._identityChangesTail._nextIdentityChange = null;\n        }\n    }\n    /** @internal */\n    _reinsertAfter(record, prevRecord, index) {\n        if (this._unlinkedRecords !== null) {\n            this._unlinkedRecords.remove(record);\n        }\n        const prev = record._prevRemoved;\n        const next = record._nextRemoved;\n        if (prev === null) {\n            this._removalsHead = next;\n        }\n        else {\n            prev._nextRemoved = next;\n        }\n        if (next === null) {\n            this._removalsTail = prev;\n        }\n        else {\n            next._prevRemoved = prev;\n        }\n        this._insertAfter(record, prevRecord, index);\n        this._addToMoves(record, index);\n        return record;\n    }\n    /** @internal */\n    _moveAfter(record, prevRecord, index) {\n        this._unlink(record);\n        this._insertAfter(record, prevRecord, index);\n        this._addToMoves(record, index);\n        return record;\n    }\n    /** @internal */\n    _addAfter(record, prevRecord, index) {\n        this._insertAfter(record, prevRecord, index);\n        if (this._additionsTail === null) {\n            // TODO(vicb):\n            // assert(this._additionsHead === null);\n            this._additionsTail = this._additionsHead = record;\n        }\n        else {\n            // TODO(vicb):\n            // assert(_additionsTail._nextAdded === null);\n            // assert(record._nextAdded === null);\n            this._additionsTail = this._additionsTail._nextAdded = record;\n        }\n        return record;\n    }\n    /** @internal */\n    _insertAfter(record, prevRecord, index) {\n        // TODO(vicb):\n        // assert(record != prevRecord);\n        // assert(record._next === null);\n        // assert(record._prev === null);\n        const next = prevRecord === null ? this._itHead : prevRecord._next;\n        // TODO(vicb):\n        // assert(next != record);\n        // assert(prevRecord != record);\n        record._next = next;\n        record._prev = prevRecord;\n        if (next === null) {\n            this._itTail = record;\n        }\n        else {\n            next._prev = record;\n        }\n        if (prevRecord === null) {\n            this._itHead = record;\n        }\n        else {\n            prevRecord._next = record;\n        }\n        if (this._linkedRecords === null) {\n            this._linkedRecords = new _DuplicateMap();\n        }\n        this._linkedRecords.put(record);\n        record.currentIndex = index;\n        return record;\n    }\n    /** @internal */\n    _remove(record) {\n        return this._addToRemovals(this._unlink(record));\n    }\n    /** @internal */\n    _unlink(record) {\n        if (this._linkedRecords !== null) {\n            this._linkedRecords.remove(record);\n        }\n        const prev = record._prev;\n        const next = record._next;\n        // TODO(vicb):\n        // assert((record._prev = null) === null);\n        // assert((record._next = null) === null);\n        if (prev === null) {\n            this._itHead = next;\n        }\n        else {\n            prev._next = next;\n        }\n        if (next === null) {\n            this._itTail = prev;\n        }\n        else {\n            next._prev = prev;\n        }\n        return record;\n    }\n    /** @internal */\n    _addToMoves(record, toIndex) {\n        // TODO(vicb):\n        // assert(record._nextMoved === null);\n        if (record.previousIndex === toIndex) {\n            return record;\n        }\n        if (this._movesTail === null) {\n            // TODO(vicb):\n            // assert(_movesHead === null);\n            this._movesTail = this._movesHead = record;\n        }\n        else {\n            // TODO(vicb):\n            // assert(_movesTail._nextMoved === null);\n            this._movesTail = this._movesTail._nextMoved = record;\n        }\n        return record;\n    }\n    _addToRemovals(record) {\n        if (this._unlinkedRecords === null) {\n            this._unlinkedRecords = new _DuplicateMap();\n        }\n        this._unlinkedRecords.put(record);\n        record.currentIndex = null;\n        record._nextRemoved = null;\n        if (this._removalsTail === null) {\n            // TODO(vicb):\n            // assert(_removalsHead === null);\n            this._removalsTail = this._removalsHead = record;\n            record._prevRemoved = null;\n        }\n        else {\n            // TODO(vicb):\n            // assert(_removalsTail._nextRemoved === null);\n            // assert(record._nextRemoved === null);\n            record._prevRemoved = this._removalsTail;\n            this._removalsTail = this._removalsTail._nextRemoved = record;\n        }\n        return record;\n    }\n    /** @internal */\n    _addIdentityChange(record, item) {\n        record.item = item;\n        if (this._identityChangesTail === null) {\n            this._identityChangesTail = this._identityChangesHead = record;\n        }\n        else {\n            this._identityChangesTail = this._identityChangesTail._nextIdentityChange = record;\n        }\n        return record;\n    }\n}\nclass IterableChangeRecord_ {\n    constructor(item, trackById) {\n        this.item = item;\n        this.trackById = trackById;\n        this.currentIndex = null;\n        this.previousIndex = null;\n        /** @internal */\n        this._nextPrevious = null;\n        /** @internal */\n        this._prev = null;\n        /** @internal */\n        this._next = null;\n        /** @internal */\n        this._prevDup = null;\n        /** @internal */\n        this._nextDup = null;\n        /** @internal */\n        this._prevRemoved = null;\n        /** @internal */\n        this._nextRemoved = null;\n        /** @internal */\n        this._nextAdded = null;\n        /** @internal */\n        this._nextMoved = null;\n        /** @internal */\n        this._nextIdentityChange = null;\n    }\n}\n// A linked list of IterableChangeRecords with the same IterableChangeRecord_.item\nclass _DuplicateItemRecordList {\n    constructor() {\n        /** @internal */\n        this._head = null;\n        /** @internal */\n        this._tail = null;\n    }\n    /**\n     * Append the record to the list of duplicates.\n     *\n     * Note: by design all records in the list of duplicates hold the same value in record.item.\n     */\n    add(record) {\n        if (this._head === null) {\n            this._head = this._tail = record;\n            record._nextDup = null;\n            record._prevDup = null;\n        }\n        else {\n            // TODO(vicb):\n            // assert(record.item ==  _head.item ||\n            //       record.item is num && record.item.isNaN && _head.item is num && _head.item.isNaN);\n            this._tail._nextDup = record;\n            record._prevDup = this._tail;\n            record._nextDup = null;\n            this._tail = record;\n        }\n    }\n    // Returns a IterableChangeRecord_ having IterableChangeRecord_.trackById == trackById and\n    // IterableChangeRecord_.currentIndex >= atOrAfterIndex\n    get(trackById, atOrAfterIndex) {\n        let record;\n        for (record = this._head; record !== null; record = record._nextDup) {\n            if ((atOrAfterIndex === null || atOrAfterIndex <= record.currentIndex) &&\n                Object.is(record.trackById, trackById)) {\n                return record;\n            }\n        }\n        return null;\n    }\n    /**\n     * Remove one {@link IterableChangeRecord_} from the list of duplicates.\n     *\n     * Returns whether the list of duplicates is empty.\n     */\n    remove(record) {\n        // TODO(vicb):\n        // assert(() {\n        //  // verify that the record being removed is in the list.\n        //  for (IterableChangeRecord_ cursor = _head; cursor != null; cursor = cursor._nextDup) {\n        //    if (identical(cursor, record)) return true;\n        //  }\n        //  return false;\n        //});\n        const prev = record._prevDup;\n        const next = record._nextDup;\n        if (prev === null) {\n            this._head = next;\n        }\n        else {\n            prev._nextDup = next;\n        }\n        if (next === null) {\n            this._tail = prev;\n        }\n        else {\n            next._prevDup = prev;\n        }\n        return this._head === null;\n    }\n}\nclass _DuplicateMap {\n    constructor() {\n        this.map = new Map();\n    }\n    put(record) {\n        const key = record.trackById;\n        let duplicates = this.map.get(key);\n        if (!duplicates) {\n            duplicates = new _DuplicateItemRecordList();\n            this.map.set(key, duplicates);\n        }\n        duplicates.add(record);\n    }\n    /**\n     * Retrieve the `value` using key. Because the IterableChangeRecord_ value may be one which we\n     * have already iterated over, we use the `atOrAfterIndex` to pretend it is not there.\n     *\n     * Use case: `[a, b, c, a, a]` if we are at index `3` which is the second `a` then asking if we\n     * have any more `a`s needs to return the second `a`.\n     */\n    get(trackById, atOrAfterIndex) {\n        const key = trackById;\n        const recordList = this.map.get(key);\n        return recordList ? recordList.get(trackById, atOrAfterIndex) : null;\n    }\n    /**\n     * Removes a {@link IterableChangeRecord_} from the list of duplicates.\n     *\n     * The list of duplicates also is removed from the map if it gets empty.\n     */\n    remove(record) {\n        const key = record.trackById;\n        const recordList = this.map.get(key);\n        // Remove the list of duplicates when it gets empty\n        if (recordList.remove(record)) {\n            this.map.delete(key);\n        }\n        return record;\n    }\n    get isEmpty() {\n        return this.map.size === 0;\n    }\n    clear() {\n        this.map.clear();\n    }\n}\nfunction getPreviousIndex(item, addRemoveOffset, moveOffsets) {\n    const previousIndex = item.previousIndex;\n    if (previousIndex === null)\n        return previousIndex;\n    let moveOffset = 0;\n    if (moveOffsets && previousIndex < moveOffsets.length) {\n        moveOffset = moveOffsets[previousIndex];\n    }\n    return previousIndex + addRemoveOffset + moveOffset;\n}\n\nclass DefaultKeyValueDifferFactory {\n    constructor() { }\n    supports(obj) {\n        return obj instanceof Map || isJsObject(obj);\n    }\n    create() {\n        return new DefaultKeyValueDiffer();\n    }\n}\nclass DefaultKeyValueDiffer {\n    constructor() {\n        this._records = new Map();\n        this._mapHead = null;\n        // _appendAfter is used in the check loop\n        this._appendAfter = null;\n        this._previousMapHead = null;\n        this._changesHead = null;\n        this._changesTail = null;\n        this._additionsHead = null;\n        this._additionsTail = null;\n        this._removalsHead = null;\n        this._removalsTail = null;\n    }\n    get isDirty() {\n        return this._additionsHead !== null || this._changesHead !== null ||\n            this._removalsHead !== null;\n    }\n    forEachItem(fn) {\n        let record;\n        for (record = this._mapHead; record !== null; record = record._next) {\n            fn(record);\n        }\n    }\n    forEachPreviousItem(fn) {\n        let record;\n        for (record = this._previousMapHead; record !== null; record = record._nextPrevious) {\n            fn(record);\n        }\n    }\n    forEachChangedItem(fn) {\n        let record;\n        for (record = this._changesHead; record !== null; record = record._nextChanged) {\n            fn(record);\n        }\n    }\n    forEachAddedItem(fn) {\n        let record;\n        for (record = this._additionsHead; record !== null; record = record._nextAdded) {\n            fn(record);\n        }\n    }\n    forEachRemovedItem(fn) {\n        let record;\n        for (record = this._removalsHead; record !== null; record = record._nextRemoved) {\n            fn(record);\n        }\n    }\n    diff(map) {\n        if (!map) {\n            map = new Map();\n        }\n        else if (!(map instanceof Map || isJsObject(map))) {\n            throw new RuntimeError(900 /* RuntimeErrorCode.INVALID_DIFFER_INPUT */, ngDevMode &&\n                `Error trying to diff '${stringify(map)}'. Only maps and objects are allowed`);\n        }\n        return this.check(map) ? this : null;\n    }\n    onDestroy() { }\n    /**\n     * Check the current state of the map vs the previous.\n     * The algorithm is optimised for when the keys do no change.\n     */\n    check(map) {\n        this._reset();\n        let insertBefore = this._mapHead;\n        this._appendAfter = null;\n        this._forEach(map, (value, key) => {\n            if (insertBefore && insertBefore.key === key) {\n                this._maybeAddToChanges(insertBefore, value);\n                this._appendAfter = insertBefore;\n                insertBefore = insertBefore._next;\n            }\n            else {\n                const record = this._getOrCreateRecordForKey(key, value);\n                insertBefore = this._insertBeforeOrAppend(insertBefore, record);\n            }\n        });\n        // Items remaining at the end of the list have been deleted\n        if (insertBefore) {\n            if (insertBefore._prev) {\n                insertBefore._prev._next = null;\n            }\n            this._removalsHead = insertBefore;\n            for (let record = insertBefore; record !== null; record = record._nextRemoved) {\n                if (record === this._mapHead) {\n                    this._mapHead = null;\n                }\n                this._records.delete(record.key);\n                record._nextRemoved = record._next;\n                record.previousValue = record.currentValue;\n                record.currentValue = null;\n                record._prev = null;\n                record._next = null;\n            }\n        }\n        // Make sure tails have no next records from previous runs\n        if (this._changesTail)\n            this._changesTail._nextChanged = null;\n        if (this._additionsTail)\n            this._additionsTail._nextAdded = null;\n        return this.isDirty;\n    }\n    /**\n     * Inserts a record before `before` or append at the end of the list when `before` is null.\n     *\n     * Notes:\n     * - This method appends at `this._appendAfter`,\n     * - This method updates `this._appendAfter`,\n     * - The return value is the new value for the insertion pointer.\n     */\n    _insertBeforeOrAppend(before, record) {\n        if (before) {\n            const prev = before._prev;\n            record._next = before;\n            record._prev = prev;\n            before._prev = record;\n            if (prev) {\n                prev._next = record;\n            }\n            if (before === this._mapHead) {\n                this._mapHead = record;\n            }\n            this._appendAfter = before;\n            return before;\n        }\n        if (this._appendAfter) {\n            this._appendAfter._next = record;\n            record._prev = this._appendAfter;\n        }\n        else {\n            this._mapHead = record;\n        }\n        this._appendAfter = record;\n        return null;\n    }\n    _getOrCreateRecordForKey(key, value) {\n        if (this._records.has(key)) {\n            const record = this._records.get(key);\n            this._maybeAddToChanges(record, value);\n            const prev = record._prev;\n            const next = record._next;\n            if (prev) {\n                prev._next = next;\n            }\n            if (next) {\n                next._prev = prev;\n            }\n            record._next = null;\n            record._prev = null;\n            return record;\n        }\n        const record = new KeyValueChangeRecord_(key);\n        this._records.set(key, record);\n        record.currentValue = value;\n        this._addToAdditions(record);\n        return record;\n    }\n    /** @internal */\n    _reset() {\n        if (this.isDirty) {\n            let record;\n            // let `_previousMapHead` contain the state of the map before the changes\n            this._previousMapHead = this._mapHead;\n            for (record = this._previousMapHead; record !== null; record = record._next) {\n                record._nextPrevious = record._next;\n            }\n            // Update `record.previousValue` with the value of the item before the changes\n            // We need to update all changed items (that's those which have been added and changed)\n            for (record = this._changesHead; record !== null; record = record._nextChanged) {\n                record.previousValue = record.currentValue;\n            }\n            for (record = this._additionsHead; record != null; record = record._nextAdded) {\n                record.previousValue = record.currentValue;\n            }\n            this._changesHead = this._changesTail = null;\n            this._additionsHead = this._additionsTail = null;\n            this._removalsHead = null;\n        }\n    }\n    // Add the record or a given key to the list of changes only when the value has actually changed\n    _maybeAddToChanges(record, newValue) {\n        if (!Object.is(newValue, record.currentValue)) {\n            record.previousValue = record.currentValue;\n            record.currentValue = newValue;\n            this._addToChanges(record);\n        }\n    }\n    _addToAdditions(record) {\n        if (this._additionsHead === null) {\n            this._additionsHead = this._additionsTail = record;\n        }\n        else {\n            this._additionsTail._nextAdded = record;\n            this._additionsTail = record;\n        }\n    }\n    _addToChanges(record) {\n        if (this._changesHead === null) {\n            this._changesHead = this._changesTail = record;\n        }\n        else {\n            this._changesTail._nextChanged = record;\n            this._changesTail = record;\n        }\n    }\n    /** @internal */\n    _forEach(obj, fn) {\n        if (obj instanceof Map) {\n            obj.forEach(fn);\n        }\n        else {\n            Object.keys(obj).forEach(k => fn(obj[k], k));\n        }\n    }\n}\nclass KeyValueChangeRecord_ {\n    constructor(key) {\n        this.key = key;\n        this.previousValue = null;\n        this.currentValue = null;\n        /** @internal */\n        this._nextPrevious = null;\n        /** @internal */\n        this._next = null;\n        /** @internal */\n        this._prev = null;\n        /** @internal */\n        this._nextAdded = null;\n        /** @internal */\n        this._nextRemoved = null;\n        /** @internal */\n        this._nextChanged = null;\n    }\n}\n\nfunction defaultIterableDiffersFactory() {\n    return new IterableDiffers([new DefaultIterableDifferFactory()]);\n}\n/**\n * A repository of different iterable diffing strategies used by NgFor, NgClass, and others.\n *\n * @publicApi\n */\nclass IterableDiffers {\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({ token: IterableDiffers, providedIn: 'root', factory: defaultIterableDiffersFactory }); }\n    constructor(factories) {\n        this.factories = factories;\n    }\n    static create(factories, parent) {\n        if (parent != null) {\n            const copied = parent.factories.slice();\n            factories = factories.concat(copied);\n        }\n        return new IterableDiffers(factories);\n    }\n    /**\n     * Takes an array of {@link IterableDifferFactory} and returns a provider used to extend the\n     * inherited {@link IterableDiffers} instance with the provided factories and return a new\n     * {@link IterableDiffers} instance.\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * The following example shows how to extend an existing list of factories,\n     * which will only be applied to the injector for this component and its children.\n     * This step is all that's required to make a new {@link IterableDiffer} available.\n     *\n     * ```\n     * @Component({\n     *   viewProviders: [\n     *     IterableDiffers.extend([new ImmutableListDiffer()])\n     *   ]\n     * })\n     * ```\n     */\n    static extend(factories) {\n        return {\n            provide: IterableDiffers,\n            useFactory: (parent) => {\n                // if parent is null, it means that we are in the root injector and we have just overridden\n                // the default injection mechanism for IterableDiffers, in such a case just assume\n                // `defaultIterableDiffersFactory`.\n                return IterableDiffers.create(factories, parent || defaultIterableDiffersFactory());\n            },\n            // Dependency technically isn't optional, but we can provide a better error message this way.\n            deps: [[IterableDiffers, new SkipSelf(), new Optional()]]\n        };\n    }\n    find(iterable) {\n        const factory = this.factories.find(f => f.supports(iterable));\n        if (factory != null) {\n            return factory;\n        }\n        else {\n            throw new RuntimeError(901 /* RuntimeErrorCode.NO_SUPPORTING_DIFFER_FACTORY */, ngDevMode &&\n                `Cannot find a differ supporting object '${iterable}' of type '${getTypeNameForDebugging(iterable)}'`);\n        }\n    }\n}\nfunction getTypeNameForDebugging(type) {\n    return type['name'] || typeof type;\n}\n\nfunction defaultKeyValueDiffersFactory() {\n    return new KeyValueDiffers([new DefaultKeyValueDifferFactory()]);\n}\n/**\n * A repository of different Map diffing strategies used by NgClass, NgStyle, and others.\n *\n * @publicApi\n */\nclass KeyValueDiffers {\n    /** @nocollapse */\n    static { this.ɵprov = ɵɵdefineInjectable({ token: KeyValueDiffers, providedIn: 'root', factory: defaultKeyValueDiffersFactory }); }\n    constructor(factories) {\n        this.factories = factories;\n    }\n    static create(factories, parent) {\n        if (parent) {\n            const copied = parent.factories.slice();\n            factories = factories.concat(copied);\n        }\n        return new KeyValueDiffers(factories);\n    }\n    /**\n     * Takes an array of {@link KeyValueDifferFactory} and returns a provider used to extend the\n     * inherited {@link KeyValueDiffers} instance with the provided factories and return a new\n     * {@link KeyValueDiffers} instance.\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * The following example shows how to extend an existing list of factories,\n     * which will only be applied to the injector for this component and its children.\n     * This step is all that's required to make a new {@link KeyValueDiffer} available.\n     *\n     * ```\n     * @Component({\n     *   viewProviders: [\n     *     KeyValueDiffers.extend([new ImmutableMapDiffer()])\n     *   ]\n     * })\n     * ```\n     */\n    static extend(factories) {\n        return {\n            provide: KeyValueDiffers,\n            useFactory: (parent) => {\n                // if parent is null, it means that we are in the root injector and we have just overridden\n                // the default injection mechanism for KeyValueDiffers, in such a case just assume\n                // `defaultKeyValueDiffersFactory`.\n                return KeyValueDiffers.create(factories, parent || defaultKeyValueDiffersFactory());\n            },\n            // Dependency technically isn't optional, but we can provide a better error message this way.\n            deps: [[KeyValueDiffers, new SkipSelf(), new Optional()]]\n        };\n    }\n    find(kv) {\n        const factory = this.factories.find(f => f.supports(kv));\n        if (factory) {\n            return factory;\n        }\n        throw new RuntimeError(901 /* RuntimeErrorCode.NO_SUPPORTING_DIFFER_FACTORY */, ngDevMode && `Cannot find a differ supporting object '${kv}'`);\n    }\n}\n\n/**\n * Structural diffing for `Object`s and `Map`s.\n */\nconst keyValDiff = [new DefaultKeyValueDifferFactory()];\n/**\n * Structural diffing for `Iterable` types such as `Array`s.\n */\nconst iterableDiff = [new DefaultIterableDifferFactory()];\nconst defaultIterableDiffers = new IterableDiffers(iterableDiff);\nconst defaultKeyValueDiffers = new KeyValueDiffers(keyValDiff);\n\n/**\n * @module\n * @description\n * Change detection enables data binding in Angular.\n */\n\n/**\n * This platform has to be included in any other platform\n *\n * @publicApi\n */\nconst platformCore = createPlatformFactory(null, 'core', []);\n\n/**\n * Re-exported by `BrowserModule`, which is included automatically in the root\n * `AppModule` when you create a new app with the CLI `new` command. Eagerly injects\n * `ApplicationRef` to instantiate it.\n *\n * @publicApi\n */\nclass ApplicationModule {\n    // Inject ApplicationRef to make it eager...\n    constructor(appRef) { }\n    static { this.ɵfac = function ApplicationModule_Factory(t) { return new (t || ApplicationModule)(ɵɵinject(ApplicationRef)); }; }\n    static { this.ɵmod = /*@__PURE__*/ ɵɵdefineNgModule({ type: ApplicationModule }); }\n    static { this.ɵinj = /*@__PURE__*/ ɵɵdefineInjector({}); }\n}\n(function () { (typeof ngDevMode === \"undefined\" || ngDevMode) && setClassMetadata(ApplicationModule, [{\n        type: NgModule\n    }], function () { return [{ type: ApplicationRef }]; }, null); })();\n\n/**\n * A collection that tracks all serialized views (`ngh` DOM annotations)\n * to avoid duplication. An attempt to add a duplicate view results in the\n * collection returning the index of the previously collected serialized view.\n * This reduces the number of annotations needed for a given page.\n */\nclass SerializedViewCollection {\n    constructor() {\n        this.views = [];\n        this.indexByContent = new Map();\n    }\n    add(serializedView) {\n        const viewAsString = JSON.stringify(serializedView);\n        if (!this.indexByContent.has(viewAsString)) {\n            const index = this.views.length;\n            this.views.push(serializedView);\n            this.indexByContent.set(viewAsString, index);\n            return index;\n        }\n        return this.indexByContent.get(viewAsString);\n    }\n    getAll() {\n        return this.views;\n    }\n}\n/**\n * Global counter that is used to generate a unique id for TViews\n * during the serialization process.\n */\nlet tViewSsrId = 0;\n/**\n * Generates a unique id for a given TView and returns this id.\n * The id is also stored on this instance of a TView and reused in\n * subsequent calls.\n *\n * This id is needed to uniquely identify and pick up dehydrated views\n * at runtime.\n */\nfunction getSsrId(tView) {\n    if (!tView.ssrId) {\n        tView.ssrId = `t${tViewSsrId++}`;\n    }\n    return tView.ssrId;\n}\n/**\n * Computes the number of root nodes in a given view\n * (or child nodes in a given container if a tNode is provided).\n */\nfunction calcNumRootNodes(tView, lView, tNode) {\n    const rootNodes = [];\n    collectNativeNodes(tView, lView, tNode, rootNodes);\n    return rootNodes.length;\n}\n/**\n * Computes the number of root nodes in all views in a given LContainer.\n */\nfunction calcNumRootNodesInLContainer(lContainer) {\n    const rootNodes = [];\n    collectNativeNodesInLContainer(lContainer, rootNodes);\n    return rootNodes.length;\n}\n/**\n * Annotates root level component's LView for hydration,\n * see `annotateHostElementForHydration` for additional information.\n */\nfunction annotateComponentLViewForHydration(lView, context) {\n    const hostElement = lView[HOST];\n    // Root elements might also be annotated with the `ngSkipHydration` attribute,\n    // check if it's present before starting the serialization process.\n    if (hostElement && !hostElement.hasAttribute(SKIP_HYDRATION_ATTR_NAME)) {\n        return annotateHostElementForHydration(hostElement, lView, context);\n    }\n    return null;\n}\n/**\n * Annotates root level LContainer for hydration. This happens when a root component\n * injects ViewContainerRef, thus making the component an anchor for a view container.\n * This function serializes the component itself as well as all views from the view\n * container.\n */\nfunction annotateLContainerForHydration(lContainer, context) {\n    const componentLView = unwrapLView(lContainer[HOST]);\n    // Serialize the root component itself.\n    const componentLViewNghIndex = annotateComponentLViewForHydration(componentLView, context);\n    const hostElement = unwrapRNode(componentLView[HOST]);\n    // Serialize all views within this view container.\n    const rootLView = lContainer[PARENT];\n    const rootLViewNghIndex = annotateHostElementForHydration(hostElement, rootLView, context);\n    const renderer = componentLView[RENDERER];\n    // For cases when a root component also acts as an anchor node for a ViewContainerRef\n    // (for example, when ViewContainerRef is injected in a root component), there is a need\n    // to serialize information about the component itself, as well as an LContainer that\n    // represents this ViewContainerRef. Effectively, we need to serialize 2 pieces of info:\n    // (1) hydration info for the root component itself and (2) hydration info for the\n    // ViewContainerRef instance (an LContainer). Each piece of information is included into\n    // the hydration data (in the TransferState object) separately, thus we end up with 2 ids.\n    // Since we only have 1 root element, we encode both bits of info into a single string:\n    // ids are separated by the `|` char (e.g. `10|25`, where `10` is the ngh for a component view\n    // and 25 is the `ngh` for a root view which holds LContainer).\n    const finalIndex = `${componentLViewNghIndex}|${rootLViewNghIndex}`;\n    renderer.setAttribute(hostElement, NGH_ATTR_NAME, finalIndex);\n}\n/**\n * Annotates all components bootstrapped in a given ApplicationRef\n * with info needed for hydration.\n *\n * @param appRef An instance of an ApplicationRef.\n * @param doc A reference to the current Document instance.\n */\nfunction annotateForHydration(appRef, doc) {\n    const serializedViewCollection = new SerializedViewCollection();\n    const corruptedTextNodes = new Map();\n    const viewRefs = appRef._views;\n    for (const viewRef of viewRefs) {\n        const lNode = getLNodeForHydration(viewRef);\n        // An `lView` might be `null` if a `ViewRef` represents\n        // an embedded view (not a component view).\n        if (lNode !== null) {\n            const context = {\n                serializedViewCollection,\n                corruptedTextNodes,\n            };\n            if (isLContainer(lNode)) {\n                annotateLContainerForHydration(lNode, context);\n            }\n            else {\n                annotateComponentLViewForHydration(lNode, context);\n            }\n            insertCorruptedTextNodeMarkers(corruptedTextNodes, doc);\n        }\n    }\n    // Note: we *always* include hydration info key and a corresponding value\n    // into the TransferState, even if the list of serialized views is empty.\n    // This is needed as a signal to the client that the server part of the\n    // hydration logic was setup and enabled correctly. Otherwise, if a client\n    // hydration doesn't find a key in the transfer state - an error is produced.\n    const serializedViews = serializedViewCollection.getAll();\n    const transferState = appRef.injector.get(TransferState);\n    transferState.set(NGH_DATA_KEY, serializedViews);\n}\n/**\n * Serializes the lContainer data into a list of SerializedView objects,\n * that represent views within this lContainer.\n *\n * @param lContainer the lContainer we are serializing\n * @param context the hydration context\n * @returns an array of the `SerializedView` objects\n */\nfunction serializeLContainer(lContainer, context) {\n    const views = [];\n    let lastViewAsString = '';\n    for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n        let childLView = lContainer[i];\n        let template;\n        let numRootNodes;\n        let serializedView;\n        if (isRootView(childLView)) {\n            // If this is a root view, get an LView for the underlying component,\n            // because it contains information about the view to serialize.\n            childLView = childLView[HEADER_OFFSET];\n            // If we have an LContainer at this position, this indicates that the\n            // host element was used as a ViewContainerRef anchor (e.g. a `ViewContainerRef`\n            // was injected within the component class). This case requires special handling.\n            if (isLContainer(childLView)) {\n                // Calculate the number of root nodes in all views in a given container\n                // and increment by one to account for an anchor node itself, i.e. in this\n                // scenario we'll have a layout that would look like this:\n                // `<app-root /><#VIEW1><#VIEW2>...<!--container-->`\n                // The `+1` is to capture the `<app-root />` element.\n                numRootNodes = calcNumRootNodesInLContainer(childLView) + 1;\n                annotateLContainerForHydration(childLView, context);\n                const componentLView = unwrapLView(childLView[HOST]);\n                serializedView = {\n                    [TEMPLATE_ID]: componentLView[TVIEW].ssrId,\n                    [NUM_ROOT_NODES]: numRootNodes,\n                };\n            }\n        }\n        if (!serializedView) {\n            const childTView = childLView[TVIEW];\n            if (childTView.type === 1 /* TViewType.Component */) {\n                template = childTView.ssrId;\n                // This is a component view, thus it has only 1 root node: the component\n                // host node itself (other nodes would be inside that host node).\n                numRootNodes = 1;\n            }\n            else {\n                template = getSsrId(childTView);\n                numRootNodes = calcNumRootNodes(childTView, childLView, childTView.firstChild);\n            }\n            serializedView = {\n                [TEMPLATE_ID]: template,\n                [NUM_ROOT_NODES]: numRootNodes,\n                ...serializeLView(lContainer[i], context),\n            };\n        }\n        // Check if the previous view has the same shape (for example, it was\n        // produced by the *ngFor), in which case bump the counter on the previous\n        // view instead of including the same information again.\n        const currentViewAsString = JSON.stringify(serializedView);\n        if (views.length > 0 && currentViewAsString === lastViewAsString) {\n            const previousView = views[views.length - 1];\n            previousView[MULTIPLIER] ??= 1;\n            previousView[MULTIPLIER]++;\n        }\n        else {\n            // Record this view as most recently added.\n            lastViewAsString = currentViewAsString;\n            views.push(serializedView);\n        }\n    }\n    return views;\n}\n/**\n * Helper function to produce a node path (which navigation steps runtime logic\n * needs to take to locate a node) and stores it in the `NODES` section of the\n * current serialized view.\n */\nfunction appendSerializedNodePath(ngh, tNode, lView) {\n    const noOffsetIndex = tNode.index - HEADER_OFFSET;\n    ngh[NODES] ??= {};\n    ngh[NODES][noOffsetIndex] = calcPathForNode(tNode, lView);\n}\n/**\n * Helper function to append information about a disconnected node.\n * This info is needed at runtime to avoid DOM lookups for this element\n * and instead, the element would be created from scratch.\n */\nfunction appendDisconnectedNodeIndex(ngh, tNode) {\n    const noOffsetIndex = tNode.index - HEADER_OFFSET;\n    ngh[DISCONNECTED_NODES] ??= [];\n    if (!ngh[DISCONNECTED_NODES].includes(noOffsetIndex)) {\n        ngh[DISCONNECTED_NODES].push(noOffsetIndex);\n    }\n}\n/**\n * Serializes the lView data into a SerializedView object that will later be added\n * to the TransferState storage and referenced using the `ngh` attribute on a host\n * element.\n *\n * @param lView the lView we are serializing\n * @param context the hydration context\n * @returns the `SerializedView` object containing the data to be added to the host node\n */\nfunction serializeLView(lView, context) {\n    const ngh = {};\n    const tView = lView[TVIEW];\n    // Iterate over DOM element references in an LView.\n    for (let i = HEADER_OFFSET; i < tView.bindingStartIndex; i++) {\n        const tNode = tView.data[i];\n        const noOffsetIndex = i - HEADER_OFFSET;\n        // Local refs (e.g. <div #localRef>) take up an extra slot in LViews\n        // to store the same element. In this case, there is no information in\n        // a corresponding slot in TNode data structure. If that's the case, just\n        // skip this slot and move to the next one.\n        if (!tNode) {\n            continue;\n        }\n        // Check if a native node that represents a given TNode is disconnected from the DOM tree.\n        // Such nodes must be excluded from the hydration (since the hydration won't be able to\n        // find them), so the TNode ids are collected and used at runtime to skip the hydration.\n        //\n        // This situation may happen during the content projection, when some nodes don't make it\n        // into one of the content projection slots (for example, when there is no default\n        // <ng-content /> slot in projector component's template).\n        if (isDisconnectedNode(tNode, lView) && isContentProjectedNode(tNode)) {\n            appendDisconnectedNodeIndex(ngh, tNode);\n            continue;\n        }\n        if (Array.isArray(tNode.projection)) {\n            for (const projectionHeadTNode of tNode.projection) {\n                // We may have `null`s in slots with no projected content.\n                if (!projectionHeadTNode)\n                    continue;\n                if (!Array.isArray(projectionHeadTNode)) {\n                    // If we process re-projected content (i.e. `<ng-content>`\n                    // appears at projection location), skip annotations for this content\n                    // since all DOM nodes in this projection were handled while processing\n                    // a parent lView, which contains those nodes.\n                    if (!isProjectionTNode(projectionHeadTNode) &&\n                        !isInSkipHydrationBlock(projectionHeadTNode)) {\n                        if (isDisconnectedNode(projectionHeadTNode, lView)) {\n                            // Check whether this node is connected, since we may have a TNode\n                            // in the data structure as a projection segment head, but the\n                            // content projection slot might be disabled (e.g.\n                            // <ng-content *ngIf=\"false\" />).\n                            appendDisconnectedNodeIndex(ngh, projectionHeadTNode);\n                        }\n                        else {\n                            appendSerializedNodePath(ngh, projectionHeadTNode, lView);\n                        }\n                    }\n                }\n                else {\n                    // If a value is an array, it means that we are processing a projection\n                    // where projectable nodes were passed in as DOM nodes (for example, when\n                    // calling `ViewContainerRef.createComponent(CmpA, {projectableNodes: [...]})`).\n                    //\n                    // In this scenario, nodes can come from anywhere (either created manually,\n                    // accessed via `document.querySelector`, etc) and may be in any state\n                    // (attached or detached from the DOM tree). As a result, we can not reliably\n                    // restore the state for such cases during hydration.\n                    throw unsupportedProjectionOfDomNodes(unwrapRNode(lView[i]));\n                }\n            }\n        }\n        if (isLContainer(lView[i])) {\n            // Serialize information about a template.\n            const embeddedTView = tNode.tView;\n            if (embeddedTView !== null) {\n                ngh[TEMPLATES] ??= {};\n                ngh[TEMPLATES][noOffsetIndex] = getSsrId(embeddedTView);\n            }\n            // Serialize views within this LContainer.\n            const hostNode = lView[i][HOST]; // host node of this container\n            // LView[i][HOST] can be of 2 different types:\n            // - either a DOM node\n            // - or an array that represents an LView of a component\n            if (Array.isArray(hostNode)) {\n                // This is a component, serialize info about it.\n                const targetNode = unwrapRNode(hostNode);\n                if (!targetNode.hasAttribute(SKIP_HYDRATION_ATTR_NAME)) {\n                    annotateHostElementForHydration(targetNode, hostNode, context);\n                }\n            }\n            ngh[CONTAINERS] ??= {};\n            ngh[CONTAINERS][noOffsetIndex] = serializeLContainer(lView[i], context);\n        }\n        else if (Array.isArray(lView[i])) {\n            // This is a component, annotate the host node with an `ngh` attribute.\n            const targetNode = unwrapRNode(lView[i][HOST]);\n            if (!targetNode.hasAttribute(SKIP_HYDRATION_ATTR_NAME)) {\n                annotateHostElementForHydration(targetNode, lView[i], context);\n            }\n        }\n        else {\n            // <ng-container> case\n            if (tNode.type & 8 /* TNodeType.ElementContainer */) {\n                // An <ng-container> is represented by the number of\n                // top-level nodes. This information is needed to skip over\n                // those nodes to reach a corresponding anchor node (comment node).\n                ngh[ELEMENT_CONTAINERS] ??= {};\n                ngh[ELEMENT_CONTAINERS][noOffsetIndex] = calcNumRootNodes(tView, lView, tNode.child);\n            }\n            else if (tNode.type & 16 /* TNodeType.Projection */) {\n                // Current TNode represents an `<ng-content>` slot, thus it has no\n                // DOM elements associated with it, so the **next sibling** node would\n                // not be able to find an anchor. In this case, use full path instead.\n                let nextTNode = tNode.next;\n                // Skip over all `<ng-content>` slots in a row.\n                while (nextTNode !== null && (nextTNode.type & 16 /* TNodeType.Projection */)) {\n                    nextTNode = nextTNode.next;\n                }\n                if (nextTNode && !isInSkipHydrationBlock(nextTNode)) {\n                    // Handle a tNode after the `<ng-content>` slot.\n                    appendSerializedNodePath(ngh, nextTNode, lView);\n                }\n            }\n            else {\n                // Handle cases where text nodes can be lost after DOM serialization:\n                //  1. When there is an *empty text node* in DOM: in this case, this\n                //     node would not make it into the serialized string and as a result,\n                //     this node wouldn't be created in a browser. This would result in\n                //     a mismatch during the hydration, where the runtime logic would expect\n                //     a text node to be present in live DOM, but no text node would exist.\n                //     Example: `<span>{{ name }}</span>` when the `name` is an empty string.\n                //     This would result in `<span></span>` string after serialization and\n                //     in a browser only the `span` element would be created. To resolve that,\n                //     an extra comment node is appended in place of an empty text node and\n                //     that special comment node is replaced with an empty text node *before*\n                //     hydration.\n                //  2. When there are 2 consecutive text nodes present in the DOM.\n                //     Example: `<div>Hello <ng-container *ngIf=\"true\">world</ng-container></div>`.\n                //     In this scenario, the live DOM would look like this:\n                //       <div>#text('Hello ') #text('world') #comment('container')</div>\n                //     Serialized string would look like this: `<div>Hello world<!--container--></div>`.\n                //     The live DOM in a browser after that would be:\n                //       <div>#text('Hello world') #comment('container')</div>\n                //     Notice how 2 text nodes are now \"merged\" into one. This would cause hydration\n                //     logic to fail, since it'd expect 2 text nodes being present, not one.\n                //     To fix this, we insert a special comment node in between those text nodes, so\n                //     serialized representation is: `<div>Hello <!--ngtns-->world<!--container--></div>`.\n                //     This forces browser to create 2 text nodes separated by a comment node.\n                //     Before running a hydration process, this special comment node is removed, so the\n                //     live DOM has exactly the same state as it was before serialization.\n                if (tNode.type & 1 /* TNodeType.Text */) {\n                    const rNode = unwrapRNode(lView[i]);\n                    // Collect this node as required special annotation only when its\n                    // contents is empty. Otherwise, such text node would be present on\n                    // the client after server-side rendering and no special handling needed.\n                    if (rNode.textContent === '') {\n                        context.corruptedTextNodes.set(rNode, \"ngetn\" /* TextNodeMarker.EmptyNode */);\n                    }\n                    else if (rNode.nextSibling?.nodeType === Node.TEXT_NODE) {\n                        context.corruptedTextNodes.set(rNode, \"ngtns\" /* TextNodeMarker.Separator */);\n                    }\n                }\n                if (tNode.projectionNext && tNode.projectionNext !== tNode.next &&\n                    !isInSkipHydrationBlock(tNode.projectionNext)) {\n                    // Check if projection next is not the same as next, in which case\n                    // the node would not be found at creation time at runtime and we\n                    // need to provide a location for that node.\n                    appendSerializedNodePath(ngh, tNode.projectionNext, lView);\n                }\n            }\n        }\n    }\n    return ngh;\n}\n/**\n * Determines whether a component instance that is represented\n * by a given LView uses `ViewEncapsulation.ShadowDom`.\n */\nfunction componentUsesShadowDomEncapsulation(lView) {\n    const instance = lView[CONTEXT];\n    return instance?.constructor ?\n        getComponentDef(instance.constructor)?.encapsulation === ViewEncapsulation$1.ShadowDom :\n        false;\n}\n/**\n * Annotates component host element for hydration:\n * - by either adding the `ngh` attribute and collecting hydration-related info\n *   for the serialization and transferring to the client\n * - or by adding the `ngSkipHydration` attribute in case Angular detects that\n *   component contents is not compatible with hydration.\n *\n * @param element The Host element to be annotated\n * @param lView The associated LView\n * @param context The hydration context\n * @returns An index of serialized view from the transfer state object\n *          or `null` when a given component can not be serialized.\n */\nfunction annotateHostElementForHydration(element, lView, context) {\n    const renderer = lView[RENDERER];\n    if (hasI18n(lView) || componentUsesShadowDomEncapsulation(lView)) {\n        // Attach the skip hydration attribute if this component:\n        // - either has i18n blocks, since hydrating such blocks is not yet supported\n        // - or uses ShadowDom view encapsulation, since Domino doesn't support\n        //   shadow DOM, so we can not guarantee that client and server representations\n        //   would exactly match\n        renderer.setAttribute(element, SKIP_HYDRATION_ATTR_NAME, '');\n        return null;\n    }\n    else {\n        const ngh = serializeLView(lView, context);\n        const index = context.serializedViewCollection.add(ngh);\n        renderer.setAttribute(element, NGH_ATTR_NAME, index.toString());\n        return index;\n    }\n}\n/**\n * Physically inserts the comment nodes to ensure empty text nodes and adjacent\n * text node separators are preserved after server serialization of the DOM.\n * These get swapped back for empty text nodes or separators once hydration happens\n * on the client.\n *\n * @param corruptedTextNodes The Map of text nodes to be replaced with comments\n * @param doc The document\n */\nfunction insertCorruptedTextNodeMarkers(corruptedTextNodes, doc) {\n    for (const [textNode, marker] of corruptedTextNodes) {\n        textNode.after(doc.createComment(marker));\n    }\n}\n/**\n * Detects whether a given TNode represents a node that\n * is being content projected.\n */\nfunction isContentProjectedNode(tNode) {\n    let currentTNode = tNode;\n    while (currentTNode != null) {\n        // If we come across a component host node in parent nodes -\n        // this TNode is in the content projection section.\n        if (isComponentHost(currentTNode)) {\n            return true;\n        }\n        currentTNode = currentTNode.parent;\n    }\n    return false;\n}\n/**\n * Check whether a given node exists, but is disconnected from the DOM.\n *\n * Note: we leverage the fact that we have this information available in the DOM emulation\n * layer (in Domino) for now. Longer-term solution should not rely on the DOM emulation and\n * only use internal data structures and state to compute this information.\n */\nfunction isDisconnectedNode(tNode, lView) {\n    return !(tNode.type & 16 /* TNodeType.Projection */) && !!lView[tNode.index] &&\n        !unwrapRNode(lView[tNode.index]).isConnected;\n}\n\n/**\n * Indicates whether the hydration-related code was added,\n * prevents adding it multiple times.\n */\nlet isHydrationSupportEnabled = false;\n/**\n * Defines a period of time that Angular waits for the `ApplicationRef.isStable` to emit `true`.\n * If there was no event with the `true` value during this time, Angular reports a warning.\n */\nconst APPLICATION_IS_STABLE_TIMEOUT = 10000;\n/**\n * Brings the necessary hydration code in tree-shakable manner.\n * The code is only present when the `provideClientHydration` is\n * invoked. Otherwise, this code is tree-shaken away during the\n * build optimization step.\n *\n * This technique allows us to swap implementations of methods so\n * tree shaking works appropriately when hydration is disabled or\n * enabled. It brings in the appropriate version of the method that\n * supports hydration only when enabled.\n */\nfunction enableHydrationRuntimeSupport() {\n    if (!isHydrationSupportEnabled) {\n        isHydrationSupportEnabled = true;\n        enableRetrieveHydrationInfoImpl();\n        enableLocateOrCreateElementNodeImpl();\n        enableLocateOrCreateTextNodeImpl();\n        enableLocateOrCreateElementContainerNodeImpl();\n        enableLocateOrCreateContainerAnchorImpl();\n        enableLocateOrCreateContainerRefImpl();\n        enableFindMatchingDehydratedViewImpl();\n        enableApplyRootElementTransformImpl();\n    }\n}\n/**\n * Outputs a message with hydration stats into a console.\n */\nfunction printHydrationStats(injector) {\n    const console = injector.get(Console);\n    const message = `Angular hydrated ${ngDevMode.hydratedComponents} component(s) ` +\n        `and ${ngDevMode.hydratedNodes} node(s), ` +\n        `${ngDevMode.componentsSkippedHydration} component(s) were skipped. ` +\n        `Note: this feature is in Developer Preview mode. ` +\n        `Learn more at https://angular.io/guide/hydration.`;\n    // tslint:disable-next-line:no-console\n    console.log(message);\n}\n/**\n * Returns a Promise that is resolved when an application becomes stable.\n */\nfunction whenStable(appRef, injector) {\n    const isStablePromise = appRef.isStable.pipe(first((isStable) => isStable)).toPromise();\n    if (typeof ngDevMode !== 'undefined' && ngDevMode) {\n        const timeoutTime = APPLICATION_IS_STABLE_TIMEOUT;\n        const console = injector.get(Console);\n        const ngZone = injector.get(NgZone);\n        // The following call should not and does not prevent the app to become stable\n        // We cannot use RxJS timer here because the app would remain unstable.\n        // This also avoids an extra change detection cycle.\n        const timeoutId = ngZone.runOutsideAngular(() => {\n            return setTimeout(() => logWarningOnStableTimedout(timeoutTime, console), timeoutTime);\n        });\n        isStablePromise.finally(() => clearTimeout(timeoutId));\n    }\n    return isStablePromise.then(() => { });\n}\n/**\n * Returns a set of providers required to setup hydration support\n * for an application that is server side rendered. This function is\n * included into the `provideClientHydration` public API function from\n * the `platform-browser` package.\n *\n * The function sets up an internal flag that would be recognized during\n * the server side rendering time as well, so there is no need to\n * configure or change anything in NgUniversal to enable the feature.\n */\nfunction withDomHydration() {\n    return makeEnvironmentProviders([\n        {\n            provide: IS_HYDRATION_DOM_REUSE_ENABLED,\n            useFactory: () => {\n                let isEnabled = true;\n                if (isPlatformBrowser()) {\n                    // On the client, verify that the server response contains\n                    // hydration annotations. Otherwise, keep hydration disabled.\n                    const transferState = inject(TransferState, { optional: true });\n                    isEnabled = !!transferState?.get(NGH_DATA_KEY, null);\n                    if (!isEnabled && (typeof ngDevMode !== 'undefined' && ngDevMode)) {\n                        const console = inject(Console);\n                        const message = formatRuntimeError(-505 /* RuntimeErrorCode.MISSING_HYDRATION_ANNOTATIONS */, 'Angular hydration was requested on the client, but there was no ' +\n                            'serialized information present in the server response, ' +\n                            'thus hydration was not enabled. ' +\n                            'Make sure the `provideClientHydration()` is included into the list ' +\n                            'of providers in the server part of the application configuration.');\n                        // tslint:disable-next-line:no-console\n                        console.warn(message);\n                    }\n                }\n                if (isEnabled) {\n                    inject(ENABLED_SSR_FEATURES).add('hydration');\n                }\n                return isEnabled;\n            },\n        },\n        {\n            provide: ENVIRONMENT_INITIALIZER,\n            useValue: () => {\n                // Since this function is used across both server and client,\n                // make sure that the runtime code is only added when invoked\n                // on the client. Moving forward, the `isPlatformBrowser` check should\n                // be replaced with a tree-shakable alternative (e.g. `isServer`\n                // flag).\n                if (isPlatformBrowser() && inject(IS_HYDRATION_DOM_REUSE_ENABLED)) {\n                    verifySsrContentsIntegrity();\n                    enableHydrationRuntimeSupport();\n                }\n            },\n            multi: true,\n        },\n        {\n            provide: PRESERVE_HOST_CONTENT,\n            useFactory: () => {\n                // Preserve host element content only in a browser\n                // environment and when hydration is configured properly.\n                // On a server, an application is rendered from scratch,\n                // so the host content needs to be empty.\n                return isPlatformBrowser() && inject(IS_HYDRATION_DOM_REUSE_ENABLED);\n            }\n        },\n        {\n            provide: APP_BOOTSTRAP_LISTENER,\n            useFactory: () => {\n                if (isPlatformBrowser() && inject(IS_HYDRATION_DOM_REUSE_ENABLED)) {\n                    const appRef = inject(ApplicationRef);\n                    const injector = inject(Injector);\n                    return () => {\n                        // Wait until an app becomes stable and cleanup all views that\n                        // were not claimed during the application bootstrap process.\n                        // The timing is similar to when we start the serialization process\n                        // on the server.\n                        //\n                        // Note: the cleanup task *MUST* be scheduled within the Angular zone\n                        // to ensure that change detection is properly run afterward.\n                        whenStable(appRef, injector).then(() => {\n                            NgZone.assertInAngularZone();\n                            cleanupDehydratedViews(appRef);\n                            if (typeof ngDevMode !== 'undefined' && ngDevMode) {\n                                printHydrationStats(injector);\n                            }\n                        });\n                    };\n                }\n                return () => { }; // noop\n            },\n            multi: true,\n        }\n    ]);\n}\n/**\n *\n * @param time The time in ms until the stable timedout warning message is logged\n */\nfunction logWarningOnStableTimedout(time, console) {\n    const message = `Angular hydration expected the ApplicationRef.isStable() to emit \\`true\\`, but it ` +\n        `didn't happen within ${time}ms. Angular hydration logic depends on the application becoming stable ` +\n        `as a signal to complete hydration process.`;\n    console.warn(formatRuntimeError(-506 /* RuntimeErrorCode.HYDRATION_STABLE_TIMEDOUT */, message));\n}\n/**\n * Verifies whether the DOM contains a special marker added during SSR time to make sure\n * there is no SSR'ed contents transformations happen after SSR is completed. Typically that\n * happens either by CDN or during the build process as an optimization to remove comment nodes.\n * Hydration process requires comment nodes produced by Angular to locate correct DOM segments.\n * When this special marker is *not* present - throw an error and do not proceed with hydration,\n * since it will not be able to function correctly.\n *\n * Note: this function is invoked only on the client, so it's safe to use DOM APIs.\n */\nfunction verifySsrContentsIntegrity() {\n    const doc = getDocument();\n    let hydrationMarker;\n    for (const node of doc.body.childNodes) {\n        if (node.nodeType === Node.COMMENT_NODE &&\n            node.textContent?.trim() === SSR_CONTENT_INTEGRITY_MARKER) {\n            hydrationMarker = node;\n            break;\n        }\n    }\n    if (!hydrationMarker) {\n        throw new RuntimeError(-507 /* RuntimeErrorCode.MISSING_SSR_CONTENT_INTEGRITY_MARKER */, typeof ngDevMode !== 'undefined' && ngDevMode &&\n            'Angular hydration logic detected that HTML content of this page was modified after it ' +\n                'was produced during server side rendering. Make sure that there are no optimizations ' +\n                'that remove comment nodes from HTML enabled on your CDN. Angular hydration ' +\n                'relies on HTML produced by the server, including whitespaces and comment nodes.');\n    }\n}\n\n/**\n * Transforms a value (typically a string) to a boolean.\n * Intended to be used as a transform function of an input.\n *\n *  @usageNotes\n *  ```typescript\n *  @Input({ transform: booleanAttribute }) status!: boolean;\n *  ```\n * @param value Value to be transformed.\n *\n * @publicApi\n */\nfunction booleanAttribute(value) {\n    return typeof value === 'boolean' ? value : (value != null && value !== 'false');\n}\n/**\n * Transforms a value (typically a string) to a number.\n * Intended to be used as a transform function of an input.\n * @param value Value to be transformed.\n * @param fallbackValue Value to use if the provided value can't be parsed as a number.\n *\n *  @usageNotes\n *  ```typescript\n *  @Input({ transform: numberAttribute }) id!: number;\n *  ```\n *\n * @publicApi\n */\nfunction numberAttribute(value, fallbackValue = NaN) {\n    // parseFloat(value) handles most of the cases we're interested in (it treats null, empty string,\n    // and other non-number values as NaN, where Number just uses 0) but it considers the string\n    // '123hello' to be a valid number. Therefore we also check if Number(value) is NaN.\n    const isNumberValue = !isNaN(parseFloat(value)) && !isNaN(Number(value));\n    return isNumberValue ? Number(value) : fallbackValue;\n}\n\n/**\n * Compiles a partial directive declaration object into a full directive definition object.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclareDirective(decl) {\n    const compiler = getCompilerFacade({ usage: 1 /* JitCompilerUsage.PartialDeclaration */, kind: 'directive', type: decl.type });\n    return compiler.compileDirectiveDeclaration(angularCoreEnv, `ng:///${decl.type.name}/ɵfac.js`, decl);\n}\n/**\n * Evaluates the class metadata declaration.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclareClassMetadata(decl) {\n    setClassMetadata(decl.type, decl.decorators, decl.ctorParameters ?? null, decl.propDecorators ?? null);\n}\n/**\n * Compiles a partial component declaration object into a full component definition object.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclareComponent(decl) {\n    const compiler = getCompilerFacade({ usage: 1 /* JitCompilerUsage.PartialDeclaration */, kind: 'component', type: decl.type });\n    return compiler.compileComponentDeclaration(angularCoreEnv, `ng:///${decl.type.name}/ɵcmp.js`, decl);\n}\n/**\n * Compiles a partial pipe declaration object into a full pipe definition object.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclareFactory(decl) {\n    const compiler = getCompilerFacade({\n        usage: 1 /* JitCompilerUsage.PartialDeclaration */,\n        kind: getFactoryKind(decl.target),\n        type: decl.type\n    });\n    return compiler.compileFactoryDeclaration(angularCoreEnv, `ng:///${decl.type.name}/ɵfac.js`, decl);\n}\nfunction getFactoryKind(target) {\n    switch (target) {\n        case FactoryTarget.Directive:\n            return 'directive';\n        case FactoryTarget.Component:\n            return 'component';\n        case FactoryTarget.Injectable:\n            return 'injectable';\n        case FactoryTarget.Pipe:\n            return 'pipe';\n        case FactoryTarget.NgModule:\n            return 'NgModule';\n    }\n}\n/**\n * Compiles a partial injectable declaration object into a full injectable definition object.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclareInjectable(decl) {\n    const compiler = getCompilerFacade({ usage: 1 /* JitCompilerUsage.PartialDeclaration */, kind: 'injectable', type: decl.type });\n    return compiler.compileInjectableDeclaration(angularCoreEnv, `ng:///${decl.type.name}/ɵprov.js`, decl);\n}\n/**\n * Compiles a partial injector declaration object into a full injector definition object.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclareInjector(decl) {\n    const compiler = getCompilerFacade({ usage: 1 /* JitCompilerUsage.PartialDeclaration */, kind: 'NgModule', type: decl.type });\n    return compiler.compileInjectorDeclaration(angularCoreEnv, `ng:///${decl.type.name}/ɵinj.js`, decl);\n}\n/**\n * Compiles a partial NgModule declaration object into a full NgModule definition object.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclareNgModule(decl) {\n    const compiler = getCompilerFacade({ usage: 1 /* JitCompilerUsage.PartialDeclaration */, kind: 'NgModule', type: decl.type });\n    return compiler.compileNgModuleDeclaration(angularCoreEnv, `ng:///${decl.type.name}/ɵmod.js`, decl);\n}\n/**\n * Compiles a partial pipe declaration object into a full pipe definition object.\n *\n * @codeGenApi\n */\nfunction ɵɵngDeclarePipe(decl) {\n    const compiler = getCompilerFacade({ usage: 1 /* JitCompilerUsage.PartialDeclaration */, kind: 'pipe', type: decl.type });\n    return compiler.compilePipeDeclaration(angularCoreEnv, `ng:///${decl.type.name}/ɵpipe.js`, decl);\n}\n\n// clang-format off\n// clang-format on\n\n// clang-format off\n// clang-format on\n\n// This file exists to allow the set of reactivity exports to be modified in g3, as these APIs are\n\n/**\n * Creates a `ComponentRef` instance based on provided component type and a set of options.\n *\n * @usageNotes\n *\n * The example below demonstrates how the `createComponent` function can be used\n * to create an instance of a ComponentRef dynamically and attach it to an ApplicationRef,\n * so that it gets included into change detection cycles.\n *\n * Note: the example uses standalone components, but the function can also be used for\n * non-standalone components (declared in an NgModule) as well.\n *\n * ```typescript\n * @Component({\n *   standalone: true,\n *   template: `Hello {{ name }}!`\n * })\n * class HelloComponent {\n *   name = 'Angular';\n * }\n *\n * @Component({\n *   standalone: true,\n *   template: `<div id=\"hello-component-host\"></div>`\n * })\n * class RootComponent {}\n *\n * // Bootstrap an application.\n * const applicationRef = await bootstrapApplication(RootComponent);\n *\n * // Locate a DOM node that would be used as a host.\n * const hostElement = document.getElementById('hello-component-host');\n *\n * // Get an `EnvironmentInjector` instance from the `ApplicationRef`.\n * const environmentInjector = applicationRef.injector;\n *\n * // We can now create a `ComponentRef` instance.\n * const componentRef = createComponent(HelloComponent, {hostElement, environmentInjector});\n *\n * // Last step is to register the newly created ref using the `ApplicationRef` instance\n * // to include the component view into change detection cycles.\n * applicationRef.attachView(componentRef.hostView);\n * componentRef.changeDetectorRef.detectChanges();\n * ```\n *\n * @param component Component class reference.\n * @param options Set of options to use:\n *  * `environmentInjector`: An `EnvironmentInjector` instance to be used for the component, see\n * additional info about it [here](/guide/standalone-components#environment-injectors).\n *  * `hostElement` (optional): A DOM node that should act as a host node for the component. If not\n * provided, Angular creates one based on the tag name used in the component selector (and falls\n * back to using `div` if selector doesn't have tag name info).\n *  * `elementInjector` (optional): An `ElementInjector` instance, see additional info about it\n * [here](/guide/hierarchical-dependency-injection#elementinjector).\n *  * `projectableNodes` (optional): A list of DOM nodes that should be projected through\n *                      [`<ng-content>`](api/core/ng-content) of the new component instance.\n * @returns ComponentRef instance that represents a given Component.\n *\n * @publicApi\n */\nfunction createComponent(component, options) {\n    ngDevMode && assertComponentDef(component);\n    const componentDef = getComponentDef(component);\n    const elementInjector = options.elementInjector || getNullInjector();\n    const factory = new ComponentFactory(componentDef);\n    return factory.create(elementInjector, options.projectableNodes, options.hostElement, options.environmentInjector);\n}\n/**\n * Creates an object that allows to retrieve component metadata.\n *\n * @usageNotes\n *\n * The example below demonstrates how to use the function and how the fields\n * of the returned object map to the component metadata.\n *\n * ```typescript\n * @Component({\n *   standalone: true,\n *   selector: 'foo-component',\n *   template: `\n *     <ng-content></ng-content>\n *     <ng-content select=\"content-selector-a\"></ng-content>\n *   `,\n * })\n * class FooComponent {\n *   @Input('inputName') inputPropName: string;\n *   @Output('outputName') outputPropName = new EventEmitter<void>();\n * }\n *\n * const mirror = reflectComponentType(FooComponent);\n * expect(mirror.type).toBe(FooComponent);\n * expect(mirror.selector).toBe('foo-component');\n * expect(mirror.isStandalone).toBe(true);\n * expect(mirror.inputs).toEqual([{propName: 'inputName', templateName: 'inputPropName'}]);\n * expect(mirror.outputs).toEqual([{propName: 'outputName', templateName: 'outputPropName'}]);\n * expect(mirror.ngContentSelectors).toEqual([\n *   '*',                 // first `<ng-content>` in a template, the selector defaults to `*`\n *   'content-selector-a' // second `<ng-content>` in a template\n * ]);\n * ```\n *\n * @param component Component class reference.\n * @returns An object that allows to retrieve component metadata.\n *\n * @publicApi\n */\nfunction reflectComponentType(component) {\n    const componentDef = getComponentDef(component);\n    if (!componentDef)\n        return null;\n    const factory = new ComponentFactory(componentDef);\n    return {\n        get selector() {\n            return factory.selector;\n        },\n        get type() {\n            return factory.componentType;\n        },\n        get inputs() {\n            return factory.inputs;\n        },\n        get outputs() {\n            return factory.outputs;\n        },\n        get ngContentSelectors() {\n            return factory.ngContentSelectors;\n        },\n        get isStandalone() {\n            return componentDef.standalone;\n        },\n        get isSignal() {\n            return componentDef.signals;\n        },\n    };\n}\n\n/**\n * Merge multiple application configurations from left to right.\n *\n * @param configs Two or more configurations to be merged.\n * @returns A merged [ApplicationConfig](api/core/ApplicationConfig).\n *\n * @publicApi\n */\nfunction mergeApplicationConfig(...configs) {\n    return configs.reduce((prev, curr) => {\n        return Object.assign(prev, curr, { providers: [...prev.providers, ...curr.providers] });\n    }, { providers: [] });\n}\n\n/**\n * @module\n * @description\n * Entry point from which you should import all public core APIs.\n */\nif (typeof ngDevMode !== 'undefined' && ngDevMode) {\n    // This helper is to give a reasonable error message to people upgrading to v9 that have not yet\n    // installed `@angular/localize` in their app.\n    // tslint:disable-next-line: no-toplevel-property-access\n    _global.$localize = _global.$localize || function () {\n        throw new Error('It looks like your application or one of its dependencies is using i18n.\\n' +\n            'Angular 9 introduced a global `$localize()` function that needs to be loaded.\\n' +\n            'Please run `ng add @angular/localize` from the Angular CLI.\\n' +\n            '(For non-CLI projects, add `import \\'@angular/localize/init\\';` to your `polyfills.ts` file.\\n' +\n            'For server-side rendering applications add the import to your `main.server.ts` file.)');\n    };\n}\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\n// This file only reexports content of the `src` folder. Keep it that way.\n\n/* This file is not used to build this module. It is only used during editing\n * by the TypeScript language service and during build for verification. `ngc`\n * replaces this file with production index.ts when it rewrites private symbol\n * names.\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ANIMATION_MODULE_TYPE, APP_BOOTSTRAP_LISTENER, APP_ID, APP_INITIALIZER, ApplicationInitStatus, ApplicationModule, ApplicationRef, Attribute, COMPILER_OPTIONS, CSP_NONCE, CUSTOM_ELEMENTS_SCHEMA, ChangeDetectionStrategy, ChangeDetectorRef, Compiler, CompilerFactory, Component, ComponentFactory$1 as ComponentFactory, ComponentFactoryResolver$1 as ComponentFactoryResolver, ComponentRef$1 as ComponentRef, ContentChild, ContentChildren, DEFAULT_CURRENCY_CODE, DebugElement, DebugEventListener, DebugNode, DefaultIterableDiffer, DestroyRef, Directive, ENVIRONMENT_INITIALIZER, ElementRef, EmbeddedViewRef, EnvironmentInjector, ErrorHandler, EventEmitter, Host, HostBinding, HostListener, INJECTOR, Inject, InjectFlags, Injectable, InjectionToken, Injector, Input, IterableDiffers, KeyValueDiffers, LOCALE_ID, MissingTranslationStrategy, ModuleWithComponentFactories, NO_ERRORS_SCHEMA, NgModule, NgModuleFactory$1 as NgModuleFactory, NgModuleRef$1 as NgModuleRef, NgProbeToken, NgZone, Optional, Output, PACKAGE_ROOT_URL, PLATFORM_ID, PLATFORM_INITIALIZER, Pipe, PlatformRef, Query, QueryList, Renderer2, RendererFactory2, RendererStyleFlags2, Sanitizer, SecurityContext, Self, SimpleChange, SkipSelf, TRANSLATIONS, TRANSLATIONS_FORMAT, TemplateRef, Testability, TestabilityRegistry, TransferState, Type, VERSION, Version, ViewChild, ViewChildren, ViewContainerRef, ViewEncapsulation$1 as ViewEncapsulation, ViewRef, afterNextRender, afterRender, asNativeElements, assertInInjectionContext, assertPlatform, booleanAttribute, computed, createComponent, createEnvironmentInjector, createNgModule, createNgModuleRef, createPlatform, createPlatformFactory, defineInjectable, destroyPlatform, effect, enableProdMode, forwardRef, getDebugNode, getModuleFactory, getNgModuleById, getPlatform, importProvidersFrom, inject, isDevMode, isSignal, isStandalone, makeEnvironmentProviders, makeStateKey, mergeApplicationConfig, numberAttribute, platformCore, provideZoneChangeDetection, reflectComponentType, resolveForwardRef, runInInjectionContext, setTestabilityGetter, signal, untracked, ALLOW_MULTIPLE_PLATFORMS as ɵALLOW_MULTIPLE_PLATFORMS, AfterRenderEventManager as ɵAfterRenderEventManager, ComponentFactory$1 as ɵComponentFactory, Console as ɵConsole, DEFAULT_LOCALE_ID as ɵDEFAULT_LOCALE_ID, ENABLED_SSR_FEATURES as ɵENABLED_SSR_FEATURES, INJECTOR_SCOPE as ɵINJECTOR_SCOPE, IS_HYDRATION_DOM_REUSE_ENABLED as ɵIS_HYDRATION_DOM_REUSE_ENABLED, InitialRenderPendingTasks as ɵInitialRenderPendingTasks, LContext as ɵLContext, LifecycleHooksFeature as ɵLifecycleHooksFeature, LocaleDataIndex as ɵLocaleDataIndex, NG_COMP_DEF as ɵNG_COMP_DEF, NG_DIR_DEF as ɵNG_DIR_DEF, NG_ELEMENT_ID as ɵNG_ELEMENT_ID, NG_INJ_DEF as ɵNG_INJ_DEF, NG_MOD_DEF as ɵNG_MOD_DEF, NG_PIPE_DEF as ɵNG_PIPE_DEF, NG_PROV_DEF as ɵNG_PROV_DEF, NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR as ɵNOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR, NO_CHANGE as ɵNO_CHANGE, NgModuleFactory as ɵNgModuleFactory, NoopNgZone as ɵNoopNgZone, ReflectionCapabilities as ɵReflectionCapabilities, ComponentFactory as ɵRender3ComponentFactory, ComponentRef as ɵRender3ComponentRef, NgModuleRef as ɵRender3NgModuleRef, RuntimeError as ɵRuntimeError, SSR_CONTENT_INTEGRITY_MARKER as ɵSSR_CONTENT_INTEGRITY_MARKER, TESTABILITY as ɵTESTABILITY, TESTABILITY_GETTER as ɵTESTABILITY_GETTER, ViewRef$1 as ɵViewRef, XSS_SECURITY_URL as ɵXSS_SECURITY_URL, _sanitizeHtml as ɵ_sanitizeHtml, _sanitizeUrl as ɵ_sanitizeUrl, allowSanitizationBypassAndThrow as ɵallowSanitizationBypassAndThrow, annotateForHydration as ɵannotateForHydration, bypassSanitizationTrustHtml as ɵbypassSanitizationTrustHtml, bypassSanitizationTrustResourceUrl as ɵbypassSanitizationTrustResourceUrl, bypassSanitizationTrustScript as ɵbypassSanitizationTrustScript, bypassSanitizationTrustStyle as ɵbypassSanitizationTrustStyle, bypassSanitizationTrustUrl as ɵbypassSanitizationTrustUrl, clearResolutionOfComponentResourcesQueue as ɵclearResolutionOfComponentResourcesQueue, compileComponent as ɵcompileComponent, compileDirective as ɵcompileDirective, compileNgModule as ɵcompileNgModule, compileNgModuleDefs as ɵcompileNgModuleDefs, compileNgModuleFactory as ɵcompileNgModuleFactory, compilePipe as ɵcompilePipe, convertToBitFlags as ɵconvertToBitFlags, createInjector as ɵcreateInjector, defaultIterableDiffers as ɵdefaultIterableDiffers, defaultKeyValueDiffers as ɵdefaultKeyValueDiffers, detectChanges as ɵdetectChanges, devModeEqual as ɵdevModeEqual, findLocaleData as ɵfindLocaleData, flushModuleScopingQueueAsMuchAsPossible as ɵflushModuleScopingQueueAsMuchAsPossible, formatRuntimeError as ɵformatRuntimeError, getDebugNode as ɵgetDebugNode, getDirectives as ɵgetDirectives, getHostElement as ɵgetHostElement, getInjectableDef as ɵgetInjectableDef, getLContext as ɵgetLContext, getLocaleCurrencyCode as ɵgetLocaleCurrencyCode, getLocalePluralCase as ɵgetLocalePluralCase, getSanitizationBypassType as ɵgetSanitizationBypassType, ɵgetUnknownElementStrictMode, ɵgetUnknownPropertyStrictMode, _global as ɵglobal, injectChangeDetectorRef as ɵinjectChangeDetectorRef, internalCreateApplication as ɵinternalCreateApplication, isBoundToModule as ɵisBoundToModule, isEnvironmentProviders as ɵisEnvironmentProviders, isInjectable as ɵisInjectable, isNgModule as ɵisNgModule, isPromise as ɵisPromise, isSubscribable as ɵisSubscribable, noSideEffects as ɵnoSideEffects, patchComponentDefWithScope as ɵpatchComponentDefWithScope, publishDefaultGlobalUtils$1 as ɵpublishDefaultGlobalUtils, publishGlobalUtil as ɵpublishGlobalUtil, registerLocaleData as ɵregisterLocaleData, resetCompiledComponents as ɵresetCompiledComponents, resetJitOptions as ɵresetJitOptions, resolveComponentResources as ɵresolveComponentResources, setAllowDuplicateNgModuleIdsForTest as ɵsetAllowDuplicateNgModuleIdsForTest, setAlternateWeakRefImpl as ɵsetAlternateWeakRefImpl, setClassMetadata as ɵsetClassMetadata, setCurrentInjector as ɵsetCurrentInjector, setDocument as ɵsetDocument, setInjectorProfilerContext as ɵsetInjectorProfilerContext, setLocaleId as ɵsetLocaleId, ɵsetUnknownElementStrictMode, ɵsetUnknownPropertyStrictMode, store as ɵstore, stringify as ɵstringify, transitiveScopesFor as ɵtransitiveScopesFor, unregisterAllLocaleData as ɵunregisterLocaleData, unwrapSafeValue as ɵunwrapSafeValue, withDomHydration as ɵwithDomHydration, ɵɵCopyDefinitionFeature, FactoryTarget as ɵɵFactoryTarget, ɵɵHostDirectivesFeature, ɵɵInheritDefinitionFeature, ɵɵInputTransformsFeature, ɵɵNgOnChangesFeature, ɵɵProvidersFeature, ɵɵStandaloneFeature, ɵɵadvance, ɵɵattribute, ɵɵattributeInterpolate1, ɵɵattributeInterpolate2, ɵɵattributeInterpolate3, ɵɵattributeInterpolate4, ɵɵattributeInterpolate5, ɵɵattributeInterpolate6, ɵɵattributeInterpolate7, ɵɵattributeInterpolate8, ɵɵattributeInterpolateV, ɵɵclassMap, ɵɵclassMapInterpolate1, ɵɵclassMapInterpolate2, ɵɵclassMapInterpolate3, ɵɵclassMapInterpolate4, ɵɵclassMapInterpolate5, ɵɵclassMapInterpolate6, ɵɵclassMapInterpolate7, ɵɵclassMapInterpolate8, ɵɵclassMapInterpolateV, ɵɵclassProp, ɵɵcontentQuery, ɵɵdefer, ɵɵdefineComponent, ɵɵdefineDirective, ɵɵdefineInjectable, ɵɵdefineInjector, ɵɵdefineNgModule, ɵɵdefinePipe, ɵɵdirectiveInject, ɵɵdisableBindings, ɵɵelement, ɵɵelementContainer, ɵɵelementContainerEnd, ɵɵelementContainerStart, ɵɵelementEnd, ɵɵelementStart, ɵɵenableBindings, ɵɵgetCurrentView, ɵɵgetInheritedFactory, ɵɵhostProperty, ɵɵi18n, ɵɵi18nApply, ɵɵi18nAttributes, ɵɵi18nEnd, ɵɵi18nExp, ɵɵi18nPostprocess, ɵɵi18nStart, ɵɵinject, ɵɵinjectAttribute, ɵɵinvalidFactory, ɵɵinvalidFactoryDep, ɵɵlistener, ɵɵloadQuery, ɵɵnamespaceHTML, ɵɵnamespaceMathML, ɵɵnamespaceSVG, ɵɵnextContext, ɵɵngDeclareClassMetadata, ɵɵngDeclareComponent, ɵɵngDeclareDirective, ɵɵngDeclareFactory, ɵɵngDeclareInjectable, ɵɵngDeclareInjector, ɵɵngDeclareNgModule, ɵɵngDeclarePipe, ɵɵpipe, ɵɵpipeBind1, ɵɵpipeBind2, ɵɵpipeBind3, ɵɵpipeBind4, ɵɵpipeBindV, ɵɵprojection, ɵɵprojectionDef, ɵɵproperty, ɵɵpropertyInterpolate, ɵɵpropertyInterpolate1, ɵɵpropertyInterpolate2, ɵɵpropertyInterpolate3, ɵɵpropertyInterpolate4, ɵɵpropertyInterpolate5, ɵɵpropertyInterpolate6, ɵɵpropertyInterpolate7, ɵɵpropertyInterpolate8, ɵɵpropertyInterpolateV, ɵɵpureFunction0, ɵɵpureFunction1, ɵɵpureFunction2, ɵɵpureFunction3, ɵɵpureFunction4, ɵɵpureFunction5, ɵɵpureFunction6, ɵɵpureFunction7, ɵɵpureFunction8, ɵɵpureFunctionV, ɵɵqueryRefresh, ɵɵreference, registerNgModuleType as ɵɵregisterNgModuleType, ɵɵresetView, ɵɵresolveBody, ɵɵresolveDocument, ɵɵresolveWindow, ɵɵrestoreView, ɵɵsanitizeHtml, ɵɵsanitizeResourceUrl, ɵɵsanitizeScript, ɵɵsanitizeStyle, ɵɵsanitizeUrl, ɵɵsanitizeUrlOrResourceUrl, ɵɵsetComponentScope, ɵɵsetNgModuleScope, ɵɵstyleMap, ɵɵstyleMapInterpolate1, ɵɵstyleMapInterpolate2, ɵɵstyleMapInterpolate3, ɵɵstyleMapInterpolate4, ɵɵstyleMapInterpolate5, ɵɵstyleMapInterpolate6, ɵɵstyleMapInterpolate7, ɵɵstyleMapInterpolate8, ɵɵstyleMapInterpolateV, ɵɵstyleProp, ɵɵstylePropInterpolate1, ɵɵstylePropInterpolate2, ɵɵstylePropInterpolate3, ɵɵstylePropInterpolate4, ɵɵstylePropInterpolate5, ɵɵstylePropInterpolate6, ɵɵstylePropInterpolate7, ɵɵstylePropInterpolate8, ɵɵstylePropInterpolateV, ɵɵsyntheticHostListener, ɵɵsyntheticHostProperty, ɵɵtemplate, ɵɵtemplateRefExtractor, ɵɵtext, ɵɵtextInterpolate, ɵɵtextInterpolate1, ɵɵtextInterpolate2, ɵɵtextInterpolate3, ɵɵtextInterpolate4, ɵɵtextInterpolate5, ɵɵtextInterpolate6, ɵɵtextInterpolate7, ɵɵtextInterpolate8, ɵɵtextInterpolateV, ɵɵtrustConstantHtml, ɵɵtrustConstantResourceUrl, ɵɵvalidateIframeAttribute, ɵɵviewQuery };\n","import { mergeAll } from '../operators/mergeAll';\nimport { innerFrom } from './innerFrom';\nimport { EMPTY } from './empty';\nimport { popNumber, popScheduler } from '../util/args';\nimport { from } from './from';\nexport function merge(...args) {\n    const scheduler = popScheduler(args);\n    const concurrent = popNumber(args, Infinity);\n    const sources = args;\n    return !sources.length\n        ?\n            EMPTY\n        : sources.length === 1\n            ?\n                innerFrom(sources[0])\n            :\n                mergeAll(concurrent)(from(sources, scheduler));\n}\n","/**\n * @license Angular v16.2.12\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { ɵglobal, ɵRuntimeError, Injectable, InjectionToken, Inject, APP_ID, CSP_NONCE, PLATFORM_ID, Optional, ViewEncapsulation, RendererStyleFlags2, ɵinternalCreateApplication, ErrorHandler, ɵsetDocument, PLATFORM_INITIALIZER, createPlatformFactory, platformCore, ɵTESTABILITY_GETTER, ɵTESTABILITY, Testability, NgZone, TestabilityRegistry, ɵINJECTOR_SCOPE, RendererFactory2, ApplicationModule, NgModule, SkipSelf, ɵɵinject, ApplicationRef, ɵConsole, forwardRef, ɵXSS_SECURITY_URL, SecurityContext, ɵallowSanitizationBypassAndThrow, ɵunwrapSafeValue, ɵ_sanitizeUrl, ɵ_sanitizeHtml, ɵbypassSanitizationTrustHtml, ɵbypassSanitizationTrustStyle, ɵbypassSanitizationTrustScript, ɵbypassSanitizationTrustUrl, ɵbypassSanitizationTrustResourceUrl, Injector, ENVIRONMENT_INITIALIZER, inject, ɵformatRuntimeError, makeEnvironmentProviders, ɵwithDomHydration, Version, makeStateKey as makeStateKey$1, TransferState as TransferState$1 } from '@angular/core';\nimport { ɵDomAdapter, ɵsetRootDomAdapter, ɵparseCookieValue, ɵgetDOM, isPlatformServer, DOCUMENT, ɵPLATFORM_BROWSER_ID, XhrFactory, CommonModule } from '@angular/common';\nexport { ɵgetDOM } from '@angular/common';\nimport { ɵwithHttpTransferCache } from '@angular/common/http';\n\n/**\n * Provides DOM operations in any browser environment.\n *\n * @security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\nclass GenericBrowserDomAdapter extends ɵDomAdapter {\n    constructor() {\n        super(...arguments);\n        this.supportsDOMEvents = true;\n    }\n}\n\n/**\n * A `DomAdapter` powered by full browser DOM APIs.\n *\n * @security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\n/* tslint:disable:requireParameterType no-console */\nclass BrowserDomAdapter extends GenericBrowserDomAdapter {\n    static makeCurrent() {\n        ɵsetRootDomAdapter(new BrowserDomAdapter());\n    }\n    onAndCancel(el, evt, listener) {\n        el.addEventListener(evt, listener);\n        return () => {\n            el.removeEventListener(evt, listener);\n        };\n    }\n    dispatchEvent(el, evt) {\n        el.dispatchEvent(evt);\n    }\n    remove(node) {\n        if (node.parentNode) {\n            node.parentNode.removeChild(node);\n        }\n    }\n    createElement(tagName, doc) {\n        doc = doc || this.getDefaultDocument();\n        return doc.createElement(tagName);\n    }\n    createHtmlDocument() {\n        return document.implementation.createHTMLDocument('fakeTitle');\n    }\n    getDefaultDocument() {\n        return document;\n    }\n    isElementNode(node) {\n        return node.nodeType === Node.ELEMENT_NODE;\n    }\n    isShadowRoot(node) {\n        return node instanceof DocumentFragment;\n    }\n    /** @deprecated No longer being used in Ivy code. To be removed in version 14. */\n    getGlobalEventTarget(doc, target) {\n        if (target === 'window') {\n            return window;\n        }\n        if (target === 'document') {\n            return doc;\n        }\n        if (target === 'body') {\n            return doc.body;\n        }\n        return null;\n    }\n    getBaseHref(doc) {\n        const href = getBaseElementHref();\n        return href == null ? null : relativePath(href);\n    }\n    resetBaseElement() {\n        baseElement = null;\n    }\n    getUserAgent() {\n        return window.navigator.userAgent;\n    }\n    getCookie(name) {\n        return ɵparseCookieValue(document.cookie, name);\n    }\n}\nlet baseElement = null;\nfunction getBaseElementHref() {\n    baseElement = baseElement || document.querySelector('base');\n    return baseElement ? baseElement.getAttribute('href') : null;\n}\n// based on urlUtils.js in AngularJS 1\nlet urlParsingNode;\nfunction relativePath(url) {\n    urlParsingNode = urlParsingNode || document.createElement('a');\n    urlParsingNode.setAttribute('href', url);\n    const pathName = urlParsingNode.pathname;\n    return pathName.charAt(0) === '/' ? pathName : `/${pathName}`;\n}\n\nclass BrowserGetTestability {\n    addToWindow(registry) {\n        ɵglobal['getAngularTestability'] = (elem, findInAncestors = true) => {\n            const testability = registry.findTestabilityInTree(elem, findInAncestors);\n            if (testability == null) {\n                throw new ɵRuntimeError(5103 /* RuntimeErrorCode.TESTABILITY_NOT_FOUND */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                    'Could not find testability for element.');\n            }\n            return testability;\n        };\n        ɵglobal['getAllAngularTestabilities'] = () => registry.getAllTestabilities();\n        ɵglobal['getAllAngularRootElements'] = () => registry.getAllRootElements();\n        const whenAllStable = (callback) => {\n            const testabilities = ɵglobal['getAllAngularTestabilities']();\n            let count = testabilities.length;\n            let didWork = false;\n            const decrement = function (didWork_) {\n                didWork = didWork || didWork_;\n                count--;\n                if (count == 0) {\n                    callback(didWork);\n                }\n            };\n            testabilities.forEach((testability) => {\n                testability.whenStable(decrement);\n            });\n        };\n        if (!ɵglobal['frameworkStabilizers']) {\n            ɵglobal['frameworkStabilizers'] = [];\n        }\n        ɵglobal['frameworkStabilizers'].push(whenAllStable);\n    }\n    findTestabilityInTree(registry, elem, findInAncestors) {\n        if (elem == null) {\n            return null;\n        }\n        const t = registry.getTestability(elem);\n        if (t != null) {\n            return t;\n        }\n        else if (!findInAncestors) {\n            return null;\n        }\n        if (ɵgetDOM().isShadowRoot(elem)) {\n            return this.findTestabilityInTree(registry, elem.host, true);\n        }\n        return this.findTestabilityInTree(registry, elem.parentElement, true);\n    }\n}\n\n/**\n * A factory for `HttpXhrBackend` that uses the `XMLHttpRequest` browser API.\n */\nclass BrowserXhr {\n    build() {\n        return new XMLHttpRequest();\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserXhr, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserXhr }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserXhr, decorators: [{\n            type: Injectable\n        }] });\n\n/**\n * The injection token for the event-manager plug-in service.\n *\n * @publicApi\n */\nconst EVENT_MANAGER_PLUGINS = new InjectionToken('EventManagerPlugins');\n/**\n * An injectable service that provides event management for Angular\n * through a browser plug-in.\n *\n * @publicApi\n */\nclass EventManager {\n    /**\n     * Initializes an instance of the event-manager service.\n     */\n    constructor(plugins, _zone) {\n        this._zone = _zone;\n        this._eventNameToPlugin = new Map();\n        plugins.forEach((plugin) => {\n            plugin.manager = this;\n        });\n        this._plugins = plugins.slice().reverse();\n    }\n    /**\n     * Registers a handler for a specific element and event.\n     *\n     * @param element The HTML element to receive event notifications.\n     * @param eventName The name of the event to listen for.\n     * @param handler A function to call when the notification occurs. Receives the\n     * event object as an argument.\n     * @returns  A callback function that can be used to remove the handler.\n     */\n    addEventListener(element, eventName, handler) {\n        const plugin = this._findPluginFor(eventName);\n        return plugin.addEventListener(element, eventName, handler);\n    }\n    /**\n     * Retrieves the compilation zone in which event listeners are registered.\n     */\n    getZone() {\n        return this._zone;\n    }\n    /** @internal */\n    _findPluginFor(eventName) {\n        let plugin = this._eventNameToPlugin.get(eventName);\n        if (plugin) {\n            return plugin;\n        }\n        const plugins = this._plugins;\n        plugin = plugins.find((plugin) => plugin.supports(eventName));\n        if (!plugin) {\n            throw new ɵRuntimeError(5101 /* RuntimeErrorCode.NO_PLUGIN_FOR_EVENT */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                `No event manager plugin found for event ${eventName}`);\n        }\n        this._eventNameToPlugin.set(eventName, plugin);\n        return plugin;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: EventManager, deps: [{ token: EVENT_MANAGER_PLUGINS }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: EventManager }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: EventManager, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [EVENT_MANAGER_PLUGINS]\n                }] }, { type: i0.NgZone }]; } });\nclass EventManagerPlugin {\n    constructor(_doc) {\n        this._doc = _doc;\n    }\n}\n\n/** The style elements attribute name used to set value of `APP_ID` token. */\nconst APP_ID_ATTRIBUTE_NAME = 'ng-app-id';\nclass SharedStylesHost {\n    constructor(doc, appId, nonce, platformId = {}) {\n        this.doc = doc;\n        this.appId = appId;\n        this.nonce = nonce;\n        this.platformId = platformId;\n        // Maps all registered host nodes to a list of style nodes that have been added to the host node.\n        this.styleRef = new Map();\n        this.hostNodes = new Set();\n        this.styleNodesInDOM = this.collectServerRenderedStyles();\n        this.platformIsServer = isPlatformServer(platformId);\n        this.resetHostNodes();\n    }\n    addStyles(styles) {\n        for (const style of styles) {\n            const usageCount = this.changeUsageCount(style, 1);\n            if (usageCount === 1) {\n                this.onStyleAdded(style);\n            }\n        }\n    }\n    removeStyles(styles) {\n        for (const style of styles) {\n            const usageCount = this.changeUsageCount(style, -1);\n            if (usageCount <= 0) {\n                this.onStyleRemoved(style);\n            }\n        }\n    }\n    ngOnDestroy() {\n        const styleNodesInDOM = this.styleNodesInDOM;\n        if (styleNodesInDOM) {\n            styleNodesInDOM.forEach((node) => node.remove());\n            styleNodesInDOM.clear();\n        }\n        for (const style of this.getAllStyles()) {\n            this.onStyleRemoved(style);\n        }\n        this.resetHostNodes();\n    }\n    addHost(hostNode) {\n        this.hostNodes.add(hostNode);\n        for (const style of this.getAllStyles()) {\n            this.addStyleToHost(hostNode, style);\n        }\n    }\n    removeHost(hostNode) {\n        this.hostNodes.delete(hostNode);\n    }\n    getAllStyles() {\n        return this.styleRef.keys();\n    }\n    onStyleAdded(style) {\n        for (const host of this.hostNodes) {\n            this.addStyleToHost(host, style);\n        }\n    }\n    onStyleRemoved(style) {\n        const styleRef = this.styleRef;\n        styleRef.get(style)?.elements?.forEach((node) => node.remove());\n        styleRef.delete(style);\n    }\n    collectServerRenderedStyles() {\n        const styles = this.doc.head?.querySelectorAll(`style[${APP_ID_ATTRIBUTE_NAME}=\"${this.appId}\"]`);\n        if (styles?.length) {\n            const styleMap = new Map();\n            styles.forEach((style) => {\n                if (style.textContent != null) {\n                    styleMap.set(style.textContent, style);\n                }\n            });\n            return styleMap;\n        }\n        return null;\n    }\n    changeUsageCount(style, delta) {\n        const map = this.styleRef;\n        if (map.has(style)) {\n            const styleRefValue = map.get(style);\n            styleRefValue.usage += delta;\n            return styleRefValue.usage;\n        }\n        map.set(style, { usage: delta, elements: [] });\n        return delta;\n    }\n    getStyleElement(host, style) {\n        const styleNodesInDOM = this.styleNodesInDOM;\n        const styleEl = styleNodesInDOM?.get(style);\n        if (styleEl?.parentNode === host) {\n            // `styleNodesInDOM` cannot be undefined due to the above `styleNodesInDOM?.get`.\n            styleNodesInDOM.delete(style);\n            styleEl.removeAttribute(APP_ID_ATTRIBUTE_NAME);\n            if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                // This attribute is solely used for debugging purposes.\n                styleEl.setAttribute('ng-style-reused', '');\n            }\n            return styleEl;\n        }\n        else {\n            const styleEl = this.doc.createElement('style');\n            if (this.nonce) {\n                styleEl.setAttribute('nonce', this.nonce);\n            }\n            styleEl.textContent = style;\n            if (this.platformIsServer) {\n                styleEl.setAttribute(APP_ID_ATTRIBUTE_NAME, this.appId);\n            }\n            return styleEl;\n        }\n    }\n    addStyleToHost(host, style) {\n        const styleEl = this.getStyleElement(host, style);\n        host.appendChild(styleEl);\n        const styleRef = this.styleRef;\n        const styleElRef = styleRef.get(style)?.elements;\n        if (styleElRef) {\n            styleElRef.push(styleEl);\n        }\n        else {\n            styleRef.set(style, { elements: [styleEl], usage: 1 });\n        }\n    }\n    resetHostNodes() {\n        const hostNodes = this.hostNodes;\n        hostNodes.clear();\n        // Re-add the head element back since this is the default host.\n        hostNodes.add(this.doc.head);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SharedStylesHost, deps: [{ token: DOCUMENT }, { token: APP_ID }, { token: CSP_NONCE, optional: true }, { token: PLATFORM_ID }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SharedStylesHost }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: SharedStylesHost, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: Document, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [APP_ID]\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [CSP_NONCE]\n                }, {\n                    type: Optional\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [PLATFORM_ID]\n                }] }]; } });\n\nconst NAMESPACE_URIS = {\n    'svg': 'http://www.w3.org/2000/svg',\n    'xhtml': 'http://www.w3.org/1999/xhtml',\n    'xlink': 'http://www.w3.org/1999/xlink',\n    'xml': 'http://www.w3.org/XML/1998/namespace',\n    'xmlns': 'http://www.w3.org/2000/xmlns/',\n    'math': 'http://www.w3.org/1998/MathML/',\n};\nconst COMPONENT_REGEX = /%COMP%/g;\nconst COMPONENT_VARIABLE = '%COMP%';\nconst HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;\nconst CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;\n/**\n * The default value for the `REMOVE_STYLES_ON_COMPONENT_DESTROY` DI token.\n */\nconst REMOVE_STYLES_ON_COMPONENT_DESTROY_DEFAULT = false;\n/**\n * A [DI token](guide/glossary#di-token \"DI token definition\") that indicates whether styles\n * of destroyed components should be removed from DOM.\n *\n * By default, the value is set to `false`. This will be changed in the next major version.\n * @publicApi\n */\nconst REMOVE_STYLES_ON_COMPONENT_DESTROY = new InjectionToken('RemoveStylesOnCompDestroy', {\n    providedIn: 'root',\n    factory: () => REMOVE_STYLES_ON_COMPONENT_DESTROY_DEFAULT,\n});\nfunction shimContentAttribute(componentShortId) {\n    return CONTENT_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\nfunction shimHostAttribute(componentShortId) {\n    return HOST_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\nfunction shimStylesContent(compId, styles) {\n    return styles.map(s => s.replace(COMPONENT_REGEX, compId));\n}\nclass DomRendererFactory2 {\n    constructor(eventManager, sharedStylesHost, appId, removeStylesOnCompDestroy, doc, platformId, ngZone, nonce = null) {\n        this.eventManager = eventManager;\n        this.sharedStylesHost = sharedStylesHost;\n        this.appId = appId;\n        this.removeStylesOnCompDestroy = removeStylesOnCompDestroy;\n        this.doc = doc;\n        this.platformId = platformId;\n        this.ngZone = ngZone;\n        this.nonce = nonce;\n        this.rendererByCompId = new Map();\n        this.platformIsServer = isPlatformServer(platformId);\n        this.defaultRenderer =\n            new DefaultDomRenderer2(eventManager, doc, ngZone, this.platformIsServer);\n    }\n    createRenderer(element, type) {\n        if (!element || !type) {\n            return this.defaultRenderer;\n        }\n        if (this.platformIsServer && type.encapsulation === ViewEncapsulation.ShadowDom) {\n            // Domino does not support shadow DOM.\n            type = { ...type, encapsulation: ViewEncapsulation.Emulated };\n        }\n        const renderer = this.getOrCreateRenderer(element, type);\n        // Renderers have different logic due to different encapsulation behaviours.\n        // Ex: for emulated, an attribute is added to the element.\n        if (renderer instanceof EmulatedEncapsulationDomRenderer2) {\n            renderer.applyToHost(element);\n        }\n        else if (renderer instanceof NoneEncapsulationDomRenderer) {\n            renderer.applyStyles();\n        }\n        return renderer;\n    }\n    getOrCreateRenderer(element, type) {\n        const rendererByCompId = this.rendererByCompId;\n        let renderer = rendererByCompId.get(type.id);\n        if (!renderer) {\n            const doc = this.doc;\n            const ngZone = this.ngZone;\n            const eventManager = this.eventManager;\n            const sharedStylesHost = this.sharedStylesHost;\n            const removeStylesOnCompDestroy = this.removeStylesOnCompDestroy;\n            const platformIsServer = this.platformIsServer;\n            switch (type.encapsulation) {\n                case ViewEncapsulation.Emulated:\n                    renderer = new EmulatedEncapsulationDomRenderer2(eventManager, sharedStylesHost, type, this.appId, removeStylesOnCompDestroy, doc, ngZone, platformIsServer);\n                    break;\n                case ViewEncapsulation.ShadowDom:\n                    return new ShadowDomRenderer(eventManager, sharedStylesHost, element, type, doc, ngZone, this.nonce, platformIsServer);\n                default:\n                    renderer = new NoneEncapsulationDomRenderer(eventManager, sharedStylesHost, type, removeStylesOnCompDestroy, doc, ngZone, platformIsServer);\n                    break;\n            }\n            rendererByCompId.set(type.id, renderer);\n        }\n        return renderer;\n    }\n    ngOnDestroy() {\n        this.rendererByCompId.clear();\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomRendererFactory2, deps: [{ token: EventManager }, { token: SharedStylesHost }, { token: APP_ID }, { token: REMOVE_STYLES_ON_COMPONENT_DESTROY }, { token: DOCUMENT }, { token: PLATFORM_ID }, { token: i0.NgZone }, { token: CSP_NONCE }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomRendererFactory2 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomRendererFactory2, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: EventManager }, { type: SharedStylesHost }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [APP_ID]\n                }] }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [REMOVE_STYLES_ON_COMPONENT_DESTROY]\n                }] }, { type: Document, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }, { type: Object, decorators: [{\n                    type: Inject,\n                    args: [PLATFORM_ID]\n                }] }, { type: i0.NgZone }, { type: undefined, decorators: [{\n                    type: Inject,\n                    args: [CSP_NONCE]\n                }] }]; } });\nclass DefaultDomRenderer2 {\n    constructor(eventManager, doc, ngZone, platformIsServer) {\n        this.eventManager = eventManager;\n        this.doc = doc;\n        this.ngZone = ngZone;\n        this.platformIsServer = platformIsServer;\n        this.data = Object.create(null);\n        this.destroyNode = null;\n    }\n    destroy() { }\n    createElement(name, namespace) {\n        if (namespace) {\n            // TODO: `|| namespace` was added in\n            // https://github.com/angular/angular/commit/2b9cc8503d48173492c29f5a271b61126104fbdb to\n            // support how Ivy passed around the namespace URI rather than short name at the time. It did\n            // not, however extend the support to other parts of the system (setAttribute, setAttribute,\n            // and the ServerRenderer). We should decide what exactly the semantics for dealing with\n            // namespaces should be and make it consistent.\n            // Related issues:\n            // https://github.com/angular/angular/issues/44028\n            // https://github.com/angular/angular/issues/44883\n            return this.doc.createElementNS(NAMESPACE_URIS[namespace] || namespace, name);\n        }\n        return this.doc.createElement(name);\n    }\n    createComment(value) {\n        return this.doc.createComment(value);\n    }\n    createText(value) {\n        return this.doc.createTextNode(value);\n    }\n    appendChild(parent, newChild) {\n        const targetParent = isTemplateNode(parent) ? parent.content : parent;\n        targetParent.appendChild(newChild);\n    }\n    insertBefore(parent, newChild, refChild) {\n        if (parent) {\n            const targetParent = isTemplateNode(parent) ? parent.content : parent;\n            targetParent.insertBefore(newChild, refChild);\n        }\n    }\n    removeChild(parent, oldChild) {\n        if (parent) {\n            parent.removeChild(oldChild);\n        }\n    }\n    selectRootElement(selectorOrNode, preserveContent) {\n        let el = typeof selectorOrNode === 'string' ? this.doc.querySelector(selectorOrNode) :\n            selectorOrNode;\n        if (!el) {\n            throw new ɵRuntimeError(-5104 /* RuntimeErrorCode.ROOT_NODE_NOT_FOUND */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                `The selector \"${selectorOrNode}\" did not match any elements`);\n        }\n        if (!preserveContent) {\n            el.textContent = '';\n        }\n        return el;\n    }\n    parentNode(node) {\n        return node.parentNode;\n    }\n    nextSibling(node) {\n        return node.nextSibling;\n    }\n    setAttribute(el, name, value, namespace) {\n        if (namespace) {\n            name = namespace + ':' + name;\n            const namespaceUri = NAMESPACE_URIS[namespace];\n            if (namespaceUri) {\n                el.setAttributeNS(namespaceUri, name, value);\n            }\n            else {\n                el.setAttribute(name, value);\n            }\n        }\n        else {\n            el.setAttribute(name, value);\n        }\n    }\n    removeAttribute(el, name, namespace) {\n        if (namespace) {\n            const namespaceUri = NAMESPACE_URIS[namespace];\n            if (namespaceUri) {\n                el.removeAttributeNS(namespaceUri, name);\n            }\n            else {\n                el.removeAttribute(`${namespace}:${name}`);\n            }\n        }\n        else {\n            el.removeAttribute(name);\n        }\n    }\n    addClass(el, name) {\n        el.classList.add(name);\n    }\n    removeClass(el, name) {\n        el.classList.remove(name);\n    }\n    setStyle(el, style, value, flags) {\n        if (flags & (RendererStyleFlags2.DashCase | RendererStyleFlags2.Important)) {\n            el.style.setProperty(style, value, flags & RendererStyleFlags2.Important ? 'important' : '');\n        }\n        else {\n            el.style[style] = value;\n        }\n    }\n    removeStyle(el, style, flags) {\n        if (flags & RendererStyleFlags2.DashCase) {\n            // removeProperty has no effect when used on camelCased properties.\n            el.style.removeProperty(style);\n        }\n        else {\n            el.style[style] = '';\n        }\n    }\n    setProperty(el, name, value) {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && checkNoSyntheticProp(name, 'property');\n        el[name] = value;\n    }\n    setValue(node, value) {\n        node.nodeValue = value;\n    }\n    listen(target, event, callback) {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && checkNoSyntheticProp(event, 'listener');\n        if (typeof target === 'string') {\n            target = ɵgetDOM().getGlobalEventTarget(this.doc, target);\n            if (!target) {\n                throw new Error(`Unsupported event target ${target} for event ${event}`);\n            }\n        }\n        return this.eventManager.addEventListener(target, event, this.decoratePreventDefault(callback));\n    }\n    decoratePreventDefault(eventHandler) {\n        // `DebugNode.triggerEventHandler` needs to know if the listener was created with\n        // decoratePreventDefault or is a listener added outside the Angular context so it can handle\n        // the two differently. In the first case, the special '__ngUnwrap__' token is passed to the\n        // unwrap the listener (see below).\n        return (event) => {\n            // Ivy uses '__ngUnwrap__' as a special token that allows us to unwrap the function\n            // so that it can be invoked programmatically by `DebugNode.triggerEventHandler`. The\n            // debug_node can inspect the listener toString contents for the existence of this special\n            // token. Because the token is a string literal, it is ensured to not be modified by compiled\n            // code.\n            if (event === '__ngUnwrap__') {\n                return eventHandler;\n            }\n            // Run the event handler inside the ngZone because event handlers are not patched\n            // by Zone on the server. This is required only for tests.\n            const allowDefaultBehavior = this.platformIsServer ?\n                this.ngZone.runGuarded(() => eventHandler(event)) :\n                eventHandler(event);\n            if (allowDefaultBehavior === false) {\n                event.preventDefault();\n            }\n            return undefined;\n        };\n    }\n}\nconst AT_CHARCODE = (() => '@'.charCodeAt(0))();\nfunction checkNoSyntheticProp(name, nameKind) {\n    if (name.charCodeAt(0) === AT_CHARCODE) {\n        throw new ɵRuntimeError(5105 /* RuntimeErrorCode.UNEXPECTED_SYNTHETIC_PROPERTY */, `Unexpected synthetic ${nameKind} ${name} found. Please make sure that:\n  - Either \\`BrowserAnimationsModule\\` or \\`NoopAnimationsModule\\` are imported in your application.\n  - There is corresponding configuration for the animation named \\`${name}\\` defined in the \\`animations\\` field of the \\`@Component\\` decorator (see https://angular.io/api/core/Component#animations).`);\n    }\n}\nfunction isTemplateNode(node) {\n    return node.tagName === 'TEMPLATE' && node.content !== undefined;\n}\nclass ShadowDomRenderer extends DefaultDomRenderer2 {\n    constructor(eventManager, sharedStylesHost, hostEl, component, doc, ngZone, nonce, platformIsServer) {\n        super(eventManager, doc, ngZone, platformIsServer);\n        this.sharedStylesHost = sharedStylesHost;\n        this.hostEl = hostEl;\n        this.shadowRoot = hostEl.attachShadow({ mode: 'open' });\n        this.sharedStylesHost.addHost(this.shadowRoot);\n        const styles = shimStylesContent(component.id, component.styles);\n        for (const style of styles) {\n            const styleEl = document.createElement('style');\n            if (nonce) {\n                styleEl.setAttribute('nonce', nonce);\n            }\n            styleEl.textContent = style;\n            this.shadowRoot.appendChild(styleEl);\n        }\n    }\n    nodeOrShadowRoot(node) {\n        return node === this.hostEl ? this.shadowRoot : node;\n    }\n    appendChild(parent, newChild) {\n        return super.appendChild(this.nodeOrShadowRoot(parent), newChild);\n    }\n    insertBefore(parent, newChild, refChild) {\n        return super.insertBefore(this.nodeOrShadowRoot(parent), newChild, refChild);\n    }\n    removeChild(parent, oldChild) {\n        return super.removeChild(this.nodeOrShadowRoot(parent), oldChild);\n    }\n    parentNode(node) {\n        return this.nodeOrShadowRoot(super.parentNode(this.nodeOrShadowRoot(node)));\n    }\n    destroy() {\n        this.sharedStylesHost.removeHost(this.shadowRoot);\n    }\n}\nclass NoneEncapsulationDomRenderer extends DefaultDomRenderer2 {\n    constructor(eventManager, sharedStylesHost, component, removeStylesOnCompDestroy, doc, ngZone, platformIsServer, compId) {\n        super(eventManager, doc, ngZone, platformIsServer);\n        this.sharedStylesHost = sharedStylesHost;\n        this.removeStylesOnCompDestroy = removeStylesOnCompDestroy;\n        this.styles = compId ? shimStylesContent(compId, component.styles) : component.styles;\n    }\n    applyStyles() {\n        this.sharedStylesHost.addStyles(this.styles);\n    }\n    destroy() {\n        if (!this.removeStylesOnCompDestroy) {\n            return;\n        }\n        this.sharedStylesHost.removeStyles(this.styles);\n    }\n}\nclass EmulatedEncapsulationDomRenderer2 extends NoneEncapsulationDomRenderer {\n    constructor(eventManager, sharedStylesHost, component, appId, removeStylesOnCompDestroy, doc, ngZone, platformIsServer) {\n        const compId = appId + '-' + component.id;\n        super(eventManager, sharedStylesHost, component, removeStylesOnCompDestroy, doc, ngZone, platformIsServer, compId);\n        this.contentAttr = shimContentAttribute(compId);\n        this.hostAttr = shimHostAttribute(compId);\n    }\n    applyToHost(element) {\n        this.applyStyles();\n        this.setAttribute(element, this.hostAttr, '');\n    }\n    createElement(parent, name) {\n        const el = super.createElement(parent, name);\n        super.setAttribute(el, this.contentAttr, '');\n        return el;\n    }\n}\n\nclass DomEventsPlugin extends EventManagerPlugin {\n    constructor(doc) {\n        super(doc);\n    }\n    // This plugin should come last in the list of plugins, because it accepts all\n    // events.\n    supports(eventName) {\n        return true;\n    }\n    addEventListener(element, eventName, handler) {\n        element.addEventListener(eventName, handler, false);\n        return () => this.removeEventListener(element, eventName, handler);\n    }\n    removeEventListener(target, eventName, callback) {\n        return target.removeEventListener(eventName, callback);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomEventsPlugin, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomEventsPlugin }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomEventsPlugin, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }]; } });\n\n/**\n * Defines supported modifiers for key events.\n */\nconst MODIFIER_KEYS = ['alt', 'control', 'meta', 'shift'];\n// The following values are here for cross-browser compatibility and to match the W3C standard\n// cf https://www.w3.org/TR/DOM-Level-3-Events-key/\nconst _keyMap = {\n    '\\b': 'Backspace',\n    '\\t': 'Tab',\n    '\\x7F': 'Delete',\n    '\\x1B': 'Escape',\n    'Del': 'Delete',\n    'Esc': 'Escape',\n    'Left': 'ArrowLeft',\n    'Right': 'ArrowRight',\n    'Up': 'ArrowUp',\n    'Down': 'ArrowDown',\n    'Menu': 'ContextMenu',\n    'Scroll': 'ScrollLock',\n    'Win': 'OS'\n};\n/**\n * Retrieves modifiers from key-event objects.\n */\nconst MODIFIER_KEY_GETTERS = {\n    'alt': (event) => event.altKey,\n    'control': (event) => event.ctrlKey,\n    'meta': (event) => event.metaKey,\n    'shift': (event) => event.shiftKey\n};\n/**\n * @publicApi\n * A browser plug-in that provides support for handling of key events in Angular.\n */\nclass KeyEventsPlugin extends EventManagerPlugin {\n    /**\n     * Initializes an instance of the browser plug-in.\n     * @param doc The document in which key events will be detected.\n     */\n    constructor(doc) {\n        super(doc);\n    }\n    /**\n     * Reports whether a named key event is supported.\n     * @param eventName The event name to query.\n     * @return True if the named key event is supported.\n     */\n    supports(eventName) {\n        return KeyEventsPlugin.parseEventName(eventName) != null;\n    }\n    /**\n     * Registers a handler for a specific element and key event.\n     * @param element The HTML element to receive event notifications.\n     * @param eventName The name of the key event to listen for.\n     * @param handler A function to call when the notification occurs. Receives the\n     * event object as an argument.\n     * @returns The key event that was registered.\n     */\n    addEventListener(element, eventName, handler) {\n        const parsedEvent = KeyEventsPlugin.parseEventName(eventName);\n        const outsideHandler = KeyEventsPlugin.eventCallback(parsedEvent['fullKey'], handler, this.manager.getZone());\n        return this.manager.getZone().runOutsideAngular(() => {\n            return ɵgetDOM().onAndCancel(element, parsedEvent['domEventName'], outsideHandler);\n        });\n    }\n    /**\n     * Parses the user provided full keyboard event definition and normalizes it for\n     * later internal use. It ensures the string is all lowercase, converts special\n     * characters to a standard spelling, and orders all the values consistently.\n     *\n     * @param eventName The name of the key event to listen for.\n     * @returns an object with the full, normalized string, and the dom event name\n     * or null in the case when the event doesn't match a keyboard event.\n     */\n    static parseEventName(eventName) {\n        const parts = eventName.toLowerCase().split('.');\n        const domEventName = parts.shift();\n        if ((parts.length === 0) || !(domEventName === 'keydown' || domEventName === 'keyup')) {\n            return null;\n        }\n        const key = KeyEventsPlugin._normalizeKey(parts.pop());\n        let fullKey = '';\n        let codeIX = parts.indexOf('code');\n        if (codeIX > -1) {\n            parts.splice(codeIX, 1);\n            fullKey = 'code.';\n        }\n        MODIFIER_KEYS.forEach(modifierName => {\n            const index = parts.indexOf(modifierName);\n            if (index > -1) {\n                parts.splice(index, 1);\n                fullKey += modifierName + '.';\n            }\n        });\n        fullKey += key;\n        if (parts.length != 0 || key.length === 0) {\n            // returning null instead of throwing to let another plugin process the event\n            return null;\n        }\n        // NOTE: Please don't rewrite this as so, as it will break JSCompiler property renaming.\n        //       The code must remain in the `result['domEventName']` form.\n        // return {domEventName, fullKey};\n        const result = {};\n        result['domEventName'] = domEventName;\n        result['fullKey'] = fullKey;\n        return result;\n    }\n    /**\n     * Determines whether the actual keys pressed match the configured key code string.\n     * The `fullKeyCode` event is normalized in the `parseEventName` method when the\n     * event is attached to the DOM during the `addEventListener` call. This is unseen\n     * by the end user and is normalized for internal consistency and parsing.\n     *\n     * @param event The keyboard event.\n     * @param fullKeyCode The normalized user defined expected key event string\n     * @returns boolean.\n     */\n    static matchEventFullKeyCode(event, fullKeyCode) {\n        let keycode = _keyMap[event.key] || event.key;\n        let key = '';\n        if (fullKeyCode.indexOf('code.') > -1) {\n            keycode = event.code;\n            key = 'code.';\n        }\n        // the keycode could be unidentified so we have to check here\n        if (keycode == null || !keycode)\n            return false;\n        keycode = keycode.toLowerCase();\n        if (keycode === ' ') {\n            keycode = 'space'; // for readability\n        }\n        else if (keycode === '.') {\n            keycode = 'dot'; // because '.' is used as a separator in event names\n        }\n        MODIFIER_KEYS.forEach(modifierName => {\n            if (modifierName !== keycode) {\n                const modifierGetter = MODIFIER_KEY_GETTERS[modifierName];\n                if (modifierGetter(event)) {\n                    key += modifierName + '.';\n                }\n            }\n        });\n        key += keycode;\n        return key === fullKeyCode;\n    }\n    /**\n     * Configures a handler callback for a key event.\n     * @param fullKey The event name that combines all simultaneous keystrokes.\n     * @param handler The function that responds to the key event.\n     * @param zone The zone in which the event occurred.\n     * @returns A callback function.\n     */\n    static eventCallback(fullKey, handler, zone) {\n        return (event) => {\n            if (KeyEventsPlugin.matchEventFullKeyCode(event, fullKey)) {\n                zone.runGuarded(() => handler(event));\n            }\n        };\n    }\n    /** @internal */\n    static _normalizeKey(keyName) {\n        // TODO: switch to a Map if the mapping grows too much\n        switch (keyName) {\n            case 'esc':\n                return 'escape';\n            default:\n                return keyName;\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: KeyEventsPlugin, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: KeyEventsPlugin }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: KeyEventsPlugin, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }]; } });\n\n/**\n * Bootstraps an instance of an Angular application and renders a standalone component as the\n * application's root component. More information about standalone components can be found in [this\n * guide](guide/standalone-components).\n *\n * @usageNotes\n * The root component passed into this function *must* be a standalone one (should have the\n * `standalone: true` flag in the `@Component` decorator config).\n *\n * ```typescript\n * @Component({\n *   standalone: true,\n *   template: 'Hello world!'\n * })\n * class RootComponent {}\n *\n * const appRef: ApplicationRef = await bootstrapApplication(RootComponent);\n * ```\n *\n * You can add the list of providers that should be available in the application injector by\n * specifying the `providers` field in an object passed as the second argument:\n *\n * ```typescript\n * await bootstrapApplication(RootComponent, {\n *   providers: [\n *     {provide: BACKEND_URL, useValue: 'https://yourdomain.com/api'}\n *   ]\n * });\n * ```\n *\n * The `importProvidersFrom` helper method can be used to collect all providers from any\n * existing NgModule (and transitively from all NgModules that it imports):\n *\n * ```typescript\n * await bootstrapApplication(RootComponent, {\n *   providers: [\n *     importProvidersFrom(SomeNgModule)\n *   ]\n * });\n * ```\n *\n * Note: the `bootstrapApplication` method doesn't include [Testability](api/core/Testability) by\n * default. You can add [Testability](api/core/Testability) by getting the list of necessary\n * providers using `provideProtractorTestingSupport()` function and adding them into the `providers`\n * array, for example:\n *\n * ```typescript\n * import {provideProtractorTestingSupport} from '@angular/platform-browser';\n *\n * await bootstrapApplication(RootComponent, {providers: [provideProtractorTestingSupport()]});\n * ```\n *\n * @param rootComponent A reference to a standalone component that should be rendered.\n * @param options Extra configuration for the bootstrap operation, see `ApplicationConfig` for\n *     additional info.\n * @returns A promise that returns an `ApplicationRef` instance once resolved.\n *\n * @publicApi\n */\nfunction bootstrapApplication(rootComponent, options) {\n    return ɵinternalCreateApplication({ rootComponent, ...createProvidersConfig(options) });\n}\n/**\n * Create an instance of an Angular application without bootstrapping any components. This is useful\n * for the situation where one wants to decouple application environment creation (a platform and\n * associated injectors) from rendering components on a screen. Components can be subsequently\n * bootstrapped on the returned `ApplicationRef`.\n *\n * @param options Extra configuration for the application environment, see `ApplicationConfig` for\n *     additional info.\n * @returns A promise that returns an `ApplicationRef` instance once resolved.\n *\n * @publicApi\n */\nfunction createApplication(options) {\n    return ɵinternalCreateApplication(createProvidersConfig(options));\n}\nfunction createProvidersConfig(options) {\n    return {\n        appProviders: [\n            ...BROWSER_MODULE_PROVIDERS,\n            ...(options?.providers ?? []),\n        ],\n        platformProviders: INTERNAL_BROWSER_PLATFORM_PROVIDERS\n    };\n}\n/**\n * Returns a set of providers required to setup [Testability](api/core/Testability) for an\n * application bootstrapped using the `bootstrapApplication` function. The set of providers is\n * needed to support testing an application with Protractor (which relies on the Testability APIs\n * to be present).\n *\n * @returns An array of providers required to setup Testability for an application and make it\n *     available for testing using Protractor.\n *\n * @publicApi\n */\nfunction provideProtractorTestingSupport() {\n    // Return a copy to prevent changes to the original array in case any in-place\n    // alterations are performed to the `provideProtractorTestingSupport` call results in app\n    // code.\n    return [...TESTABILITY_PROVIDERS];\n}\nfunction initDomAdapter() {\n    BrowserDomAdapter.makeCurrent();\n}\nfunction errorHandler() {\n    return new ErrorHandler();\n}\nfunction _document() {\n    // Tell ivy about the global document\n    ɵsetDocument(document);\n    return document;\n}\nconst INTERNAL_BROWSER_PLATFORM_PROVIDERS = [\n    { provide: PLATFORM_ID, useValue: ɵPLATFORM_BROWSER_ID },\n    { provide: PLATFORM_INITIALIZER, useValue: initDomAdapter, multi: true },\n    { provide: DOCUMENT, useFactory: _document, deps: [] },\n];\n/**\n * A factory function that returns a `PlatformRef` instance associated with browser service\n * providers.\n *\n * @publicApi\n */\nconst platformBrowser = createPlatformFactory(platformCore, 'browser', INTERNAL_BROWSER_PLATFORM_PROVIDERS);\n/**\n * Internal marker to signal whether providers from the `BrowserModule` are already present in DI.\n * This is needed to avoid loading `BrowserModule` providers twice. We can't rely on the\n * `BrowserModule` presence itself, since the standalone-based bootstrap just imports\n * `BrowserModule` providers without referencing the module itself.\n */\nconst BROWSER_MODULE_PROVIDERS_MARKER = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'BrowserModule Providers Marker' : '');\nconst TESTABILITY_PROVIDERS = [\n    {\n        provide: ɵTESTABILITY_GETTER,\n        useClass: BrowserGetTestability,\n        deps: [],\n    },\n    {\n        provide: ɵTESTABILITY,\n        useClass: Testability,\n        deps: [NgZone, TestabilityRegistry, ɵTESTABILITY_GETTER]\n    },\n    {\n        provide: Testability,\n        useClass: Testability,\n        deps: [NgZone, TestabilityRegistry, ɵTESTABILITY_GETTER]\n    }\n];\nconst BROWSER_MODULE_PROVIDERS = [\n    { provide: ɵINJECTOR_SCOPE, useValue: 'root' },\n    { provide: ErrorHandler, useFactory: errorHandler, deps: [] }, {\n        provide: EVENT_MANAGER_PLUGINS,\n        useClass: DomEventsPlugin,\n        multi: true,\n        deps: [DOCUMENT, NgZone, PLATFORM_ID]\n    },\n    { provide: EVENT_MANAGER_PLUGINS, useClass: KeyEventsPlugin, multi: true, deps: [DOCUMENT] },\n    DomRendererFactory2, SharedStylesHost, EventManager,\n    { provide: RendererFactory2, useExisting: DomRendererFactory2 },\n    { provide: XhrFactory, useClass: BrowserXhr, deps: [] },\n    (typeof ngDevMode === 'undefined' || ngDevMode) ?\n        { provide: BROWSER_MODULE_PROVIDERS_MARKER, useValue: true } :\n        []\n];\n/**\n * Exports required infrastructure for all Angular apps.\n * Included by default in all Angular apps created with the CLI\n * `new` command.\n * Re-exports `CommonModule` and `ApplicationModule`, making their\n * exports and providers available to all apps.\n *\n * @publicApi\n */\nclass BrowserModule {\n    constructor(providersAlreadyPresent) {\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) && providersAlreadyPresent) {\n            throw new ɵRuntimeError(5100 /* RuntimeErrorCode.BROWER_MODULE_ALREADY_LOADED */, `Providers from the \\`BrowserModule\\` have already been loaded. If you need access ` +\n                `to common directives such as NgIf and NgFor, import the \\`CommonModule\\` instead.`);\n        }\n    }\n    /**\n     * Configures a browser-based app to transition from a server-rendered app, if\n     * one is present on the page.\n     *\n     * @param params An object containing an identifier for the app to transition.\n     * The ID must match between the client and server versions of the app.\n     * @returns The reconfigured `BrowserModule` to import into the app's root `AppModule`.\n     *\n     * @deprecated Use {@link APP_ID} instead to set the application ID.\n     */\n    static withServerTransition(params) {\n        return {\n            ngModule: BrowserModule,\n            providers: [\n                { provide: APP_ID, useValue: params.appId },\n            ],\n        };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserModule, deps: [{ token: BROWSER_MODULE_PROVIDERS_MARKER, optional: true, skipSelf: true }], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserModule, exports: [CommonModule, ApplicationModule] }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserModule, providers: [...BROWSER_MODULE_PROVIDERS, ...TESTABILITY_PROVIDERS], imports: [CommonModule, ApplicationModule] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BrowserModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    providers: [...BROWSER_MODULE_PROVIDERS, ...TESTABILITY_PROVIDERS],\n                    exports: [CommonModule, ApplicationModule],\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: SkipSelf\n                }, {\n                    type: Inject,\n                    args: [BROWSER_MODULE_PROVIDERS_MARKER]\n                }] }]; } });\n\n/**\n * Factory to create a `Meta` service instance for the current DOM document.\n */\nfunction createMeta() {\n    return new Meta(ɵɵinject(DOCUMENT));\n}\n/**\n * A service for managing HTML `<meta>` tags.\n *\n * Properties of the `MetaDefinition` object match the attributes of the\n * HTML `<meta>` tag. These tags define document metadata that is important for\n * things like configuring a Content Security Policy, defining browser compatibility\n * and security settings, setting HTTP Headers, defining rich content for social sharing,\n * and Search Engine Optimization (SEO).\n *\n * To identify specific `<meta>` tags in a document, use an attribute selection\n * string in the format `\"tag_attribute='value string'\"`.\n * For example, an `attrSelector` value of `\"name='description'\"` matches a tag\n * whose `name` attribute has the value `\"description\"`.\n * Selectors are used with the `querySelector()` Document method,\n * in the format `meta[{attrSelector}]`.\n *\n * @see [HTML meta tag](https://developer.mozilla.org/docs/Web/HTML/Element/meta)\n * @see [Document.querySelector()](https://developer.mozilla.org/docs/Web/API/Document/querySelector)\n *\n *\n * @publicApi\n */\nclass Meta {\n    constructor(_doc) {\n        this._doc = _doc;\n        this._dom = ɵgetDOM();\n    }\n    /**\n     * Retrieves or creates a specific `<meta>` tag element in the current HTML document.\n     * In searching for an existing tag, Angular attempts to match the `name` or `property` attribute\n     * values in the provided tag definition, and verifies that all other attribute values are equal.\n     * If an existing element is found, it is returned and is not modified in any way.\n     * @param tag The definition of a `<meta>` element to match or create.\n     * @param forceCreation True to create a new element without checking whether one already exists.\n     * @returns The existing element with the same attributes and values if found,\n     * the new element if no match is found, or `null` if the tag parameter is not defined.\n     */\n    addTag(tag, forceCreation = false) {\n        if (!tag)\n            return null;\n        return this._getOrCreateElement(tag, forceCreation);\n    }\n    /**\n     * Retrieves or creates a set of `<meta>` tag elements in the current HTML document.\n     * In searching for an existing tag, Angular attempts to match the `name` or `property` attribute\n     * values in the provided tag definition, and verifies that all other attribute values are equal.\n     * @param tags An array of tag definitions to match or create.\n     * @param forceCreation True to create new elements without checking whether they already exist.\n     * @returns The matching elements if found, or the new elements.\n     */\n    addTags(tags, forceCreation = false) {\n        if (!tags)\n            return [];\n        return tags.reduce((result, tag) => {\n            if (tag) {\n                result.push(this._getOrCreateElement(tag, forceCreation));\n            }\n            return result;\n        }, []);\n    }\n    /**\n     * Retrieves a `<meta>` tag element in the current HTML document.\n     * @param attrSelector The tag attribute and value to match against, in the format\n     * `\"tag_attribute='value string'\"`.\n     * @returns The matching element, if any.\n     */\n    getTag(attrSelector) {\n        if (!attrSelector)\n            return null;\n        return this._doc.querySelector(`meta[${attrSelector}]`) || null;\n    }\n    /**\n     * Retrieves a set of `<meta>` tag elements in the current HTML document.\n     * @param attrSelector The tag attribute and value to match against, in the format\n     * `\"tag_attribute='value string'\"`.\n     * @returns The matching elements, if any.\n     */\n    getTags(attrSelector) {\n        if (!attrSelector)\n            return [];\n        const list /*NodeList*/ = this._doc.querySelectorAll(`meta[${attrSelector}]`);\n        return list ? [].slice.call(list) : [];\n    }\n    /**\n     * Modifies an existing `<meta>` tag element in the current HTML document.\n     * @param tag The tag description with which to replace the existing tag content.\n     * @param selector A tag attribute and value to match against, to identify\n     * an existing tag. A string in the format `\"tag_attribute=`value string`\"`.\n     * If not supplied, matches a tag with the same `name` or `property` attribute value as the\n     * replacement tag.\n     * @return The modified element.\n     */\n    updateTag(tag, selector) {\n        if (!tag)\n            return null;\n        selector = selector || this._parseSelector(tag);\n        const meta = this.getTag(selector);\n        if (meta) {\n            return this._setMetaElementAttributes(tag, meta);\n        }\n        return this._getOrCreateElement(tag, true);\n    }\n    /**\n     * Removes an existing `<meta>` tag element from the current HTML document.\n     * @param attrSelector A tag attribute and value to match against, to identify\n     * an existing tag. A string in the format `\"tag_attribute=`value string`\"`.\n     */\n    removeTag(attrSelector) {\n        this.removeTagElement(this.getTag(attrSelector));\n    }\n    /**\n     * Removes an existing `<meta>` tag element from the current HTML document.\n     * @param meta The tag definition to match against to identify an existing tag.\n     */\n    removeTagElement(meta) {\n        if (meta) {\n            this._dom.remove(meta);\n        }\n    }\n    _getOrCreateElement(meta, forceCreation = false) {\n        if (!forceCreation) {\n            const selector = this._parseSelector(meta);\n            // It's allowed to have multiple elements with the same name so it's not enough to\n            // just check that element with the same name already present on the page. We also need to\n            // check if element has tag attributes\n            const elem = this.getTags(selector).filter(elem => this._containsAttributes(meta, elem))[0];\n            if (elem !== undefined)\n                return elem;\n        }\n        const element = this._dom.createElement('meta');\n        this._setMetaElementAttributes(meta, element);\n        const head = this._doc.getElementsByTagName('head')[0];\n        head.appendChild(element);\n        return element;\n    }\n    _setMetaElementAttributes(tag, el) {\n        Object.keys(tag).forEach((prop) => el.setAttribute(this._getMetaKeyMap(prop), tag[prop]));\n        return el;\n    }\n    _parseSelector(tag) {\n        const attr = tag.name ? 'name' : 'property';\n        return `${attr}=\"${tag[attr]}\"`;\n    }\n    _containsAttributes(tag, elem) {\n        return Object.keys(tag).every((key) => elem.getAttribute(this._getMetaKeyMap(key)) === tag[key]);\n    }\n    _getMetaKeyMap(prop) {\n        return META_KEYS_MAP[prop] || prop;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Meta, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Meta, providedIn: 'root', useFactory: createMeta, deps: [] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Meta, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: createMeta, deps: [] }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }]; } });\n/**\n * Mapping for MetaDefinition properties with their correct meta attribute names\n */\nconst META_KEYS_MAP = {\n    httpEquiv: 'http-equiv'\n};\n\n/**\n * Factory to create Title service.\n */\nfunction createTitle() {\n    return new Title(ɵɵinject(DOCUMENT));\n}\n/**\n * A service that can be used to get and set the title of a current HTML document.\n *\n * Since an Angular application can't be bootstrapped on the entire HTML document (`<html>` tag)\n * it is not possible to bind to the `text` property of the `HTMLTitleElement` elements\n * (representing the `<title>` tag). Instead, this service can be used to set and get the current\n * title value.\n *\n * @publicApi\n */\nclass Title {\n    constructor(_doc) {\n        this._doc = _doc;\n    }\n    /**\n     * Get the title of the current HTML document.\n     */\n    getTitle() {\n        return this._doc.title;\n    }\n    /**\n     * Set the title of the current HTML document.\n     * @param newTitle\n     */\n    setTitle(newTitle) {\n        this._doc.title = newTitle || '';\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Title, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Title, providedIn: 'root', useFactory: createTitle, deps: [] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Title, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: createTitle, deps: [] }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }]; } });\n\n/**\n * Exports the value under a given `name` in the global property `ng`. For example `ng.probe` if\n * `name` is `'probe'`.\n * @param name Name under which it will be exported. Keep in mind this will be a property of the\n * global `ng` object.\n * @param value The value to export.\n */\nfunction exportNgVar(name, value) {\n    if (typeof COMPILED === 'undefined' || !COMPILED) {\n        // Note: we can't export `ng` when using closure enhanced optimization as:\n        // - closure declares globals itself for minified names, which sometimes clobber our `ng` global\n        // - we can't declare a closure extern as the namespace `ng` is already used within Google\n        //   for typings for angularJS (via `goog.provide('ng....')`).\n        const ng = ɵglobal['ng'] = ɵglobal['ng'] || {};\n        ng[name] = value;\n    }\n}\n\nconst win = typeof window !== 'undefined' && window || {};\n\nclass ChangeDetectionPerfRecord {\n    constructor(msPerTick, numTicks) {\n        this.msPerTick = msPerTick;\n        this.numTicks = numTicks;\n    }\n}\n/**\n * Entry point for all Angular profiling-related debug tools. This object\n * corresponds to the `ng.profiler` in the dev console.\n */\nclass AngularProfiler {\n    constructor(ref) {\n        this.appRef = ref.injector.get(ApplicationRef);\n    }\n    // tslint:disable:no-console\n    /**\n     * Exercises change detection in a loop and then prints the average amount of\n     * time in milliseconds how long a single round of change detection takes for\n     * the current state of the UI. It runs a minimum of 5 rounds for a minimum\n     * of 500 milliseconds.\n     *\n     * Optionally, a user may pass a `config` parameter containing a map of\n     * options. Supported options are:\n     *\n     * `record` (boolean) - causes the profiler to record a CPU profile while\n     * it exercises the change detector. Example:\n     *\n     * ```\n     * ng.profiler.timeChangeDetection({record: true})\n     * ```\n     */\n    timeChangeDetection(config) {\n        const record = config && config['record'];\n        const profileName = 'Change Detection';\n        // Profiler is not available in Android browsers without dev tools opened\n        const isProfilerAvailable = win.console.profile != null;\n        if (record && isProfilerAvailable) {\n            win.console.profile(profileName);\n        }\n        const start = performanceNow();\n        let numTicks = 0;\n        while (numTicks < 5 || (performanceNow() - start) < 500) {\n            this.appRef.tick();\n            numTicks++;\n        }\n        const end = performanceNow();\n        if (record && isProfilerAvailable) {\n            win.console.profileEnd(profileName);\n        }\n        const msPerTick = (end - start) / numTicks;\n        win.console.log(`ran ${numTicks} change detection cycles`);\n        win.console.log(`${msPerTick.toFixed(2)} ms per check`);\n        return new ChangeDetectionPerfRecord(msPerTick, numTicks);\n    }\n}\nfunction performanceNow() {\n    return win.performance && win.performance.now ? win.performance.now() :\n        new Date().getTime();\n}\n\nconst PROFILER_GLOBAL_NAME = 'profiler';\n/**\n * Enabled Angular debug tools that are accessible via your browser's\n * developer console.\n *\n * Usage:\n *\n * 1. Open developer console (e.g. in Chrome Ctrl + Shift + j)\n * 1. Type `ng.` (usually the console will show auto-complete suggestion)\n * 1. Try the change detection profiler `ng.profiler.timeChangeDetection()`\n *    then hit Enter.\n *\n * @publicApi\n */\nfunction enableDebugTools(ref) {\n    exportNgVar(PROFILER_GLOBAL_NAME, new AngularProfiler(ref));\n    return ref;\n}\n/**\n * Disables Angular tools.\n *\n * @publicApi\n */\nfunction disableDebugTools() {\n    exportNgVar(PROFILER_GLOBAL_NAME, null);\n}\n\n/**\n * Predicates for use with {@link DebugElement}'s query functions.\n *\n * @publicApi\n */\nclass By {\n    /**\n     * Match all nodes.\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * {@example platform-browser/dom/debug/ts/by/by.ts region='by_all'}\n     */\n    static all() {\n        return () => true;\n    }\n    /**\n     * Match elements by the given CSS selector.\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * {@example platform-browser/dom/debug/ts/by/by.ts region='by_css'}\n     */\n    static css(selector) {\n        return (debugElement) => {\n            return debugElement.nativeElement != null ?\n                elementMatches(debugElement.nativeElement, selector) :\n                false;\n        };\n    }\n    /**\n     * Match nodes that have the given directive present.\n     *\n     * @usageNotes\n     * ### Example\n     *\n     * {@example platform-browser/dom/debug/ts/by/by.ts region='by_directive'}\n     */\n    static directive(type) {\n        return (debugNode) => debugNode.providerTokens.indexOf(type) !== -1;\n    }\n}\nfunction elementMatches(n, selector) {\n    if (ɵgetDOM().isElementNode(n)) {\n        return n.matches && n.matches(selector) ||\n            n.msMatchesSelector && n.msMatchesSelector(selector) ||\n            n.webkitMatchesSelector && n.webkitMatchesSelector(selector);\n    }\n    return false;\n}\n\n/**\n * Supported HammerJS recognizer event names.\n */\nconst EVENT_NAMES = {\n    // pan\n    'pan': true,\n    'panstart': true,\n    'panmove': true,\n    'panend': true,\n    'pancancel': true,\n    'panleft': true,\n    'panright': true,\n    'panup': true,\n    'pandown': true,\n    // pinch\n    'pinch': true,\n    'pinchstart': true,\n    'pinchmove': true,\n    'pinchend': true,\n    'pinchcancel': true,\n    'pinchin': true,\n    'pinchout': true,\n    // press\n    'press': true,\n    'pressup': true,\n    // rotate\n    'rotate': true,\n    'rotatestart': true,\n    'rotatemove': true,\n    'rotateend': true,\n    'rotatecancel': true,\n    // swipe\n    'swipe': true,\n    'swipeleft': true,\n    'swiperight': true,\n    'swipeup': true,\n    'swipedown': true,\n    // tap\n    'tap': true,\n    'doubletap': true\n};\n/**\n * DI token for providing [HammerJS](https://hammerjs.github.io/) support to Angular.\n * @see {@link HammerGestureConfig}\n *\n * @ngModule HammerModule\n * @publicApi\n */\nconst HAMMER_GESTURE_CONFIG = new InjectionToken('HammerGestureConfig');\n/**\n * Injection token used to provide a {@link HammerLoader} to Angular.\n *\n * @publicApi\n */\nconst HAMMER_LOADER = new InjectionToken('HammerLoader');\n/**\n * An injectable [HammerJS Manager](https://hammerjs.github.io/api/#hammermanager)\n * for gesture recognition. Configures specific event recognition.\n * @publicApi\n */\nclass HammerGestureConfig {\n    constructor() {\n        /**\n         * A set of supported event names for gestures to be used in Angular.\n         * Angular supports all built-in recognizers, as listed in\n         * [HammerJS documentation](https://hammerjs.github.io/).\n         */\n        this.events = [];\n        /**\n         * Maps gesture event names to a set of configuration options\n         * that specify overrides to the default values for specific properties.\n         *\n         * The key is a supported event name to be configured,\n         * and the options object contains a set of properties, with override values\n         * to be applied to the named recognizer event.\n         * For example, to disable recognition of the rotate event, specify\n         *  `{\"rotate\": {\"enable\": false}}`.\n         *\n         * Properties that are not present take the HammerJS default values.\n         * For information about which properties are supported for which events,\n         * and their allowed and default values, see\n         * [HammerJS documentation](https://hammerjs.github.io/).\n         *\n         */\n        this.overrides = {};\n    }\n    /**\n     * Creates a [HammerJS Manager](https://hammerjs.github.io/api/#hammermanager)\n     * and attaches it to a given HTML element.\n     * @param element The element that will recognize gestures.\n     * @returns A HammerJS event-manager object.\n     */\n    buildHammer(element) {\n        const mc = new Hammer(element, this.options);\n        mc.get('pinch').set({ enable: true });\n        mc.get('rotate').set({ enable: true });\n        for (const eventName in this.overrides) {\n            mc.get(eventName).set(this.overrides[eventName]);\n        }\n        return mc;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerGestureConfig, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerGestureConfig }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerGestureConfig, decorators: [{\n            type: Injectable\n        }] });\n/**\n * Event plugin that adds Hammer support to an application.\n *\n * @ngModule HammerModule\n */\nclass HammerGesturesPlugin extends EventManagerPlugin {\n    constructor(doc, _config, console, loader) {\n        super(doc);\n        this._config = _config;\n        this.console = console;\n        this.loader = loader;\n        this._loaderPromise = null;\n    }\n    supports(eventName) {\n        if (!EVENT_NAMES.hasOwnProperty(eventName.toLowerCase()) && !this.isCustomEvent(eventName)) {\n            return false;\n        }\n        if (!window.Hammer && !this.loader) {\n            if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                this.console.warn(`The \"${eventName}\" event cannot be bound because Hammer.JS is not ` +\n                    `loaded and no custom loader has been specified.`);\n            }\n            return false;\n        }\n        return true;\n    }\n    addEventListener(element, eventName, handler) {\n        const zone = this.manager.getZone();\n        eventName = eventName.toLowerCase();\n        // If Hammer is not present but a loader is specified, we defer adding the event listener\n        // until Hammer is loaded.\n        if (!window.Hammer && this.loader) {\n            this._loaderPromise = this._loaderPromise || zone.runOutsideAngular(() => this.loader());\n            // This `addEventListener` method returns a function to remove the added listener.\n            // Until Hammer is loaded, the returned function needs to *cancel* the registration rather\n            // than remove anything.\n            let cancelRegistration = false;\n            let deregister = () => {\n                cancelRegistration = true;\n            };\n            zone.runOutsideAngular(() => this._loaderPromise\n                .then(() => {\n                // If Hammer isn't actually loaded when the custom loader resolves, give up.\n                if (!window.Hammer) {\n                    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                        this.console.warn(`The custom HAMMER_LOADER completed, but Hammer.JS is not present.`);\n                    }\n                    deregister = () => { };\n                    return;\n                }\n                if (!cancelRegistration) {\n                    // Now that Hammer is loaded and the listener is being loaded for real,\n                    // the deregistration function changes from canceling registration to\n                    // removal.\n                    deregister = this.addEventListener(element, eventName, handler);\n                }\n            })\n                .catch(() => {\n                if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                    this.console.warn(`The \"${eventName}\" event cannot be bound because the custom ` +\n                        `Hammer.JS loader failed.`);\n                }\n                deregister = () => { };\n            }));\n            // Return a function that *executes* `deregister` (and not `deregister` itself) so that we\n            // can change the behavior of `deregister` once the listener is added. Using a closure in\n            // this way allows us to avoid any additional data structures to track listener removal.\n            return () => {\n                deregister();\n            };\n        }\n        return zone.runOutsideAngular(() => {\n            // Creating the manager bind events, must be done outside of angular\n            const mc = this._config.buildHammer(element);\n            const callback = function (eventObj) {\n                zone.runGuarded(function () {\n                    handler(eventObj);\n                });\n            };\n            mc.on(eventName, callback);\n            return () => {\n                mc.off(eventName, callback);\n                // destroy mc to prevent memory leak\n                if (typeof mc.destroy === 'function') {\n                    mc.destroy();\n                }\n            };\n        });\n    }\n    isCustomEvent(eventName) {\n        return this._config.events.indexOf(eventName) > -1;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerGesturesPlugin, deps: [{ token: DOCUMENT }, { token: HAMMER_GESTURE_CONFIG }, { token: i0.ɵConsole }, { token: HAMMER_LOADER, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerGesturesPlugin }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerGesturesPlugin, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }, { type: HammerGestureConfig, decorators: [{\n                    type: Inject,\n                    args: [HAMMER_GESTURE_CONFIG]\n                }] }, { type: i0.ɵConsole }, { type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [HAMMER_LOADER]\n                }] }]; } });\n/**\n * Adds support for HammerJS.\n *\n * Import this module at the root of your application so that Angular can work with\n * HammerJS to detect gesture events.\n *\n * Note that applications still need to include the HammerJS script itself. This module\n * simply sets up the coordination layer between HammerJS and Angular's EventManager.\n *\n * @publicApi\n */\nclass HammerModule {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerModule }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerModule, providers: [\n            {\n                provide: EVENT_MANAGER_PLUGINS,\n                useClass: HammerGesturesPlugin,\n                multi: true,\n                deps: [DOCUMENT, HAMMER_GESTURE_CONFIG, ɵConsole, [new Optional(), HAMMER_LOADER]]\n            },\n            { provide: HAMMER_GESTURE_CONFIG, useClass: HammerGestureConfig, deps: [] },\n        ] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: HammerModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    providers: [\n                        {\n                            provide: EVENT_MANAGER_PLUGINS,\n                            useClass: HammerGesturesPlugin,\n                            multi: true,\n                            deps: [DOCUMENT, HAMMER_GESTURE_CONFIG, ɵConsole, [new Optional(), HAMMER_LOADER]]\n                        },\n                        { provide: HAMMER_GESTURE_CONFIG, useClass: HammerGestureConfig, deps: [] },\n                    ]\n                }]\n        }] });\n\n/**\n * DomSanitizer helps preventing Cross Site Scripting Security bugs (XSS) by sanitizing\n * values to be safe to use in the different DOM contexts.\n *\n * For example, when binding a URL in an `<a [href]=\"someValue\">` hyperlink, `someValue` will be\n * sanitized so that an attacker cannot inject e.g. a `javascript:` URL that would execute code on\n * the website.\n *\n * In specific situations, it might be necessary to disable sanitization, for example if the\n * application genuinely needs to produce a `javascript:` style link with a dynamic value in it.\n * Users can bypass security by constructing a value with one of the `bypassSecurityTrust...`\n * methods, and then binding to that value from the template.\n *\n * These situations should be very rare, and extraordinary care must be taken to avoid creating a\n * Cross Site Scripting (XSS) security bug!\n *\n * When using `bypassSecurityTrust...`, make sure to call the method as early as possible and as\n * close as possible to the source of the value, to make it easy to verify no security bug is\n * created by its use.\n *\n * It is not required (and not recommended) to bypass security if the value is safe, e.g. a URL that\n * does not start with a suspicious protocol, or an HTML snippet that does not contain dangerous\n * code. The sanitizer leaves safe values intact.\n *\n * @security Calling any of the `bypassSecurityTrust...` APIs disables Angular's built-in\n * sanitization for the value passed in. Carefully check and audit all values and code paths going\n * into this call. Make sure any user data is appropriately escaped for this security context.\n * For more detail, see the [Security Guide](https://g.co/ng/security).\n *\n * @publicApi\n */\nclass DomSanitizer {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomSanitizer, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomSanitizer, providedIn: 'root', useExisting: i0.forwardRef(function () { return DomSanitizerImpl; }) }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomSanitizer, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useExisting: forwardRef(() => DomSanitizerImpl) }]\n        }] });\nfunction domSanitizerImplFactory(injector) {\n    return new DomSanitizerImpl(injector.get(DOCUMENT));\n}\nclass DomSanitizerImpl extends DomSanitizer {\n    constructor(_doc) {\n        super();\n        this._doc = _doc;\n    }\n    sanitize(ctx, value) {\n        if (value == null)\n            return null;\n        switch (ctx) {\n            case SecurityContext.NONE:\n                return value;\n            case SecurityContext.HTML:\n                if (ɵallowSanitizationBypassAndThrow(value, \"HTML\" /* BypassType.Html */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                return ɵ_sanitizeHtml(this._doc, String(value)).toString();\n            case SecurityContext.STYLE:\n                if (ɵallowSanitizationBypassAndThrow(value, \"Style\" /* BypassType.Style */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                return value;\n            case SecurityContext.SCRIPT:\n                if (ɵallowSanitizationBypassAndThrow(value, \"Script\" /* BypassType.Script */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                throw new ɵRuntimeError(5200 /* RuntimeErrorCode.SANITIZATION_UNSAFE_SCRIPT */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                    'unsafe value used in a script context');\n            case SecurityContext.URL:\n                if (ɵallowSanitizationBypassAndThrow(value, \"URL\" /* BypassType.Url */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                return ɵ_sanitizeUrl(String(value));\n            case SecurityContext.RESOURCE_URL:\n                if (ɵallowSanitizationBypassAndThrow(value, \"ResourceURL\" /* BypassType.ResourceUrl */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                throw new ɵRuntimeError(5201 /* RuntimeErrorCode.SANITIZATION_UNSAFE_RESOURCE_URL */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                    `unsafe value used in a resource URL context (see ${ɵXSS_SECURITY_URL})`);\n            default:\n                throw new ɵRuntimeError(5202 /* RuntimeErrorCode.SANITIZATION_UNEXPECTED_CTX */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                    `Unexpected SecurityContext ${ctx} (see ${ɵXSS_SECURITY_URL})`);\n        }\n    }\n    bypassSecurityTrustHtml(value) {\n        return ɵbypassSanitizationTrustHtml(value);\n    }\n    bypassSecurityTrustStyle(value) {\n        return ɵbypassSanitizationTrustStyle(value);\n    }\n    bypassSecurityTrustScript(value) {\n        return ɵbypassSanitizationTrustScript(value);\n    }\n    bypassSecurityTrustUrl(value) {\n        return ɵbypassSanitizationTrustUrl(value);\n    }\n    bypassSecurityTrustResourceUrl(value) {\n        return ɵbypassSanitizationTrustResourceUrl(value);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomSanitizerImpl, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomSanitizerImpl, providedIn: 'root', useFactory: domSanitizerImplFactory, deps: [{ token: Injector }] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DomSanitizerImpl, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: domSanitizerImplFactory, deps: [Injector] }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Inject,\n                    args: [DOCUMENT]\n                }] }]; } });\n\n/**\n * Helper function to create an object that represents a Hydration feature.\n */\nfunction hydrationFeature(kind, providers = []) {\n    return { ɵkind: kind, ɵproviders: providers };\n}\n/**\n * Disables DOM nodes reuse during hydration. Effectively makes\n * Angular re-render an application from scratch on the client.\n *\n * When this option is enabled, make sure that the initial navigation\n * option is configured for the Router as `enabledBlocking` by using the\n * `withEnabledBlockingInitialNavigation` in the `provideRouter` call:\n *\n * ```\n * bootstrapApplication(RootComponent, {\n *   providers: [\n *     provideRouter(\n *       // ... other features ...\n *       withEnabledBlockingInitialNavigation()\n *     ),\n *     provideClientHydration(withNoDomReuse())\n *   ]\n * });\n * ```\n *\n * This would ensure that the application is rerendered after all async\n * operations in the Router (such as lazy-loading of components,\n * waiting for async guards and resolvers) are completed to avoid\n * clearing the DOM on the client too soon, thus causing content flicker.\n *\n * @see {@link provideRouter}\n * @see {@link withEnabledBlockingInitialNavigation}\n *\n * @publicApi\n * @developerPreview\n */\nfunction withNoDomReuse() {\n    // This feature has no providers and acts as a flag that turns off\n    // non-destructive hydration (which otherwise is turned on by default).\n    return hydrationFeature(0 /* HydrationFeatureKind.NoDomReuseFeature */);\n}\n/**\n * Disables HTTP transfer cache. Effectively causes HTTP requests to be performed twice: once on the\n * server and other one on the browser.\n *\n * @publicApi\n * @developerPreview\n */\nfunction withNoHttpTransferCache() {\n    // This feature has no providers and acts as a flag that turns off\n    // HTTP transfer cache (which otherwise is turned on by default).\n    return hydrationFeature(1 /* HydrationFeatureKind.NoHttpTransferCache */);\n}\n/**\n * Returns an `ENVIRONMENT_INITIALIZER` token setup with a function\n * that verifies whether compatible ZoneJS was used in an application\n * and logs a warning in a console if it's not the case.\n */\nfunction provideZoneJsCompatibilityDetector() {\n    return [{\n            provide: ENVIRONMENT_INITIALIZER,\n            useValue: () => {\n                const ngZone = inject(NgZone);\n                // Checking `ngZone instanceof NgZone` would be insufficient here,\n                // because custom implementations might use NgZone as a base class.\n                if (ngZone.constructor !== NgZone) {\n                    const console = inject(ɵConsole);\n                    const message = ɵformatRuntimeError(-5000 /* RuntimeErrorCode.UNSUPPORTED_ZONEJS_INSTANCE */, 'Angular detected that hydration was enabled for an application ' +\n                        'that uses a custom or a noop Zone.js implementation. ' +\n                        'This is not yet a fully supported configuration.');\n                    // tslint:disable-next-line:no-console\n                    console.warn(message);\n                }\n            },\n            multi: true,\n        }];\n}\n/**\n * Sets up providers necessary to enable hydration functionality for the application.\n *\n * By default, the function enables the recommended set of features for the optimal\n * performance for most of the applications. You can enable/disable features by\n * passing special functions (from the `HydrationFeatures` set) as arguments to the\n * `provideClientHydration` function. It includes the following features:\n *\n * * Reconciling DOM hydration. Learn more about it [here](guide/hydration).\n * * [`HttpClient`](api/common/http/HttpClient) response caching while running on the server and\n * transferring this cache to the client to avoid extra HTTP requests. Learn more about data caching\n * [here](/guide/universal#caching-data-when-using-httpclient).\n *\n * These functions functions will allow you to disable some of the default features:\n * * {@link withNoDomReuse} to disable DOM nodes reuse during hydration\n * * {@link withNoHttpTransferCache} to disable HTTP transfer cache\n *\n *\n * @usageNotes\n *\n * Basic example of how you can enable hydration in your application when\n * `bootstrapApplication` function is used:\n * ```\n * bootstrapApplication(AppComponent, {\n *   providers: [provideClientHydration()]\n * });\n * ```\n *\n * Alternatively if you are using NgModules, you would add `provideClientHydration`\n * to your root app module's provider list.\n * ```\n * @NgModule({\n *   declarations: [RootCmp],\n *   bootstrap: [RootCmp],\n *   providers: [provideClientHydration()],\n * })\n * export class AppModule {}\n * ```\n *\n * @see {@link withNoDomReuse}\n * @see {@link withNoHttpTransferCache}\n *\n * @param features Optional features to configure additional router behaviors.\n * @returns A set of providers to enable hydration.\n *\n * @publicApi\n * @developerPreview\n */\nfunction provideClientHydration(...features) {\n    const providers = [];\n    const featuresKind = new Set();\n    for (const { ɵproviders, ɵkind } of features) {\n        featuresKind.add(ɵkind);\n        if (ɵproviders.length) {\n            providers.push(ɵproviders);\n        }\n    }\n    return makeEnvironmentProviders([\n        (typeof ngDevMode !== 'undefined' && ngDevMode) ? provideZoneJsCompatibilityDetector() : [],\n        (featuresKind.has(0 /* HydrationFeatureKind.NoDomReuseFeature */) ? [] : ɵwithDomHydration()),\n        (featuresKind.has(1 /* HydrationFeatureKind.NoHttpTransferCache */) ? [] : ɵwithHttpTransferCache()),\n        providers,\n    ]);\n}\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of the platform-browser package.\n */\n/**\n * @publicApi\n */\nconst VERSION = new Version('16.2.12');\n\n// Re-export TransferState to the public API of the `platform-browser` for backwards-compatibility.\n/**\n * Create a `StateKey<T>` that can be used to store value of type T with `TransferState`.\n *\n * Example:\n *\n * ```\n * const COUNTER_KEY = makeStateKey<number>('counter');\n * let value = 10;\n *\n * transferState.set(COUNTER_KEY, value);\n * ```\n *\n * @publicApi\n * @deprecated `makeStateKey` has moved, please import `makeStateKey` from `@angular/core` instead.\n */\n// The below is a workaround to add a deprecated message.\nconst makeStateKey = makeStateKey$1;\n// The below type is needed for G3 due to JSC_CONFORMANCE_VIOLATION.\nconst TransferState = TransferState$1;\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\n// This file only reexports content of the `src` folder. Keep it that way.\n\n// This file is not used to build this module. It is only used during editing\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BrowserModule, By, DomSanitizer, EVENT_MANAGER_PLUGINS, EventManager, HAMMER_GESTURE_CONFIG, HAMMER_LOADER, HammerGestureConfig, HammerModule, Meta, REMOVE_STYLES_ON_COMPONENT_DESTROY, Title, TransferState, VERSION, bootstrapApplication, createApplication, disableDebugTools, enableDebugTools, makeStateKey, platformBrowser, provideClientHydration, provideProtractorTestingSupport, withNoDomReuse, withNoHttpTransferCache, BrowserDomAdapter as ɵBrowserDomAdapter, BrowserGetTestability as ɵBrowserGetTestability, DomEventsPlugin as ɵDomEventsPlugin, DomRendererFactory2 as ɵDomRendererFactory2, DomSanitizerImpl as ɵDomSanitizerImpl, HammerGesturesPlugin as ɵHammerGesturesPlugin, INTERNAL_BROWSER_PLATFORM_PROVIDERS as ɵINTERNAL_BROWSER_PLATFORM_PROVIDERS, KeyEventsPlugin as ɵKeyEventsPlugin, SharedStylesHost as ɵSharedStylesHost, initDomAdapter as ɵinitDomAdapter };\n","import { Observable } from '../Observable';\nimport { argsArgArrayOrObject } from '../util/argsArgArrayOrObject';\nimport { from } from './from';\nimport { identity } from '../util/identity';\nimport { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';\nimport { popResultSelector, popScheduler } from '../util/args';\nimport { createObject } from '../util/createObject';\nimport { OperatorSubscriber } from '../operators/OperatorSubscriber';\nimport { executeSchedule } from '../util/executeSchedule';\nexport function combineLatest(...args) {\n    const scheduler = popScheduler(args);\n    const resultSelector = popResultSelector(args);\n    const { args: observables, keys } = argsArgArrayOrObject(args);\n    if (observables.length === 0) {\n        return from([], scheduler);\n    }\n    const result = new Observable(combineLatestInit(observables, scheduler, keys\n        ?\n            (values) => createObject(keys, values)\n        :\n            identity));\n    return resultSelector ? result.pipe(mapOneOrManyArgs(resultSelector)) : result;\n}\nexport function combineLatestInit(observables, scheduler, valueTransform = identity) {\n    return (subscriber) => {\n        maybeSchedule(scheduler, () => {\n            const { length } = observables;\n            const values = new Array(length);\n            let active = length;\n            let remainingFirstValues = length;\n            for (let i = 0; i < length; i++) {\n                maybeSchedule(scheduler, () => {\n                    const source = from(observables[i], scheduler);\n                    let hasFirstValue = false;\n                    source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n                        values[i] = value;\n                        if (!hasFirstValue) {\n                            hasFirstValue = true;\n                            remainingFirstValues--;\n                        }\n                        if (!remainingFirstValues) {\n                            subscriber.next(valueTransform(values.slice()));\n                        }\n                    }, () => {\n                        if (!--active) {\n                            subscriber.complete();\n                        }\n                    }));\n                }, subscriber);\n            }\n        }, subscriber);\n    };\n}\nfunction maybeSchedule(scheduler, execute, subscription) {\n    if (scheduler) {\n        executeSchedule(subscription, scheduler, execute);\n    }\n    else {\n        execute();\n    }\n}\n","import { concatAll } from '../operators/concatAll';\nimport { popScheduler } from '../util/args';\nimport { from } from './from';\nexport function concat(...args) {\n    return concatAll()(from(args, popScheduler(args)));\n}\n","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n    return mergeAll(1);\n}\n","import { Observable } from '../Observable';\nimport { innerFrom } from './innerFrom';\nexport function defer(observableFactory) {\n    return new Observable((subscriber) => {\n        innerFrom(observableFactory()).subscribe(subscriber);\n    });\n}\n","import { Observable } from '../Observable';\nimport { isFunction } from '../util/isFunction';\nexport function throwError(errorOrErrorFactory, scheduler) {\n    const errorFactory = isFunction(errorOrErrorFactory) ? errorOrErrorFactory : () => errorOrErrorFactory;\n    const init = (subscriber) => subscriber.error(errorFactory());\n    return new Observable(scheduler ? (subscriber) => scheduler.schedule(init, 0, subscriber) : init);\n}\n","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function refCount() {\n    return operate((source, subscriber) => {\n        let connection = null;\n        source._refCount++;\n        const refCounter = new OperatorSubscriber(subscriber, undefined, undefined, undefined, () => {\n            if (!source || source._refCount <= 0 || 0 < --source._refCount) {\n                connection = null;\n                return;\n            }\n            const sharedConnection = source._connection;\n            const conn = connection;\n            connection = null;\n            if (sharedConnection && (!conn || sharedConnection === conn)) {\n                sharedConnection.unsubscribe();\n            }\n            subscriber.unsubscribe();\n        });\n        source.subscribe(refCounter);\n        if (!refCounter.closed) {\n            connection = source.connect();\n        }\n    });\n}\n","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nimport { OperatorSubscriber } from '../operators/OperatorSubscriber';\nimport { hasLift } from '../util/lift';\nexport class ConnectableObservable extends Observable {\n    constructor(source, subjectFactory) {\n        super();\n        this.source = source;\n        this.subjectFactory = subjectFactory;\n        this._subject = null;\n        this._refCount = 0;\n        this._connection = null;\n        if (hasLift(source)) {\n            this.lift = source.lift;\n        }\n    }\n    _subscribe(subscriber) {\n        return this.getSubject().subscribe(subscriber);\n    }\n    getSubject() {\n        const subject = this._subject;\n        if (!subject || subject.isStopped) {\n            this._subject = this.subjectFactory();\n        }\n        return this._subject;\n    }\n    _teardown() {\n        this._refCount = 0;\n        const { _connection } = this;\n        this._subject = this._connection = null;\n        _connection === null || _connection === void 0 ? void 0 : _connection.unsubscribe();\n    }\n    connect() {\n        let connection = this._connection;\n        if (!connection) {\n            connection = this._connection = new Subscription();\n            const subject = this.getSubject();\n            connection.add(this.source.subscribe(new OperatorSubscriber(subject, undefined, () => {\n                this._teardown();\n                subject.complete();\n            }, (err) => {\n                this._teardown();\n                subject.error(err);\n            }, () => this._teardown())));\n            if (connection.closed) {\n                this._connection = null;\n                connection = Subscription.EMPTY;\n            }\n        }\n        return connection;\n    }\n    refCount() {\n        return higherOrderRefCount()(this);\n    }\n}\n","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function defaultIfEmpty(defaultValue) {\n    return operate((source, subscriber) => {\n        let hasValue = false;\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            hasValue = true;\n            subscriber.next(value);\n        }, () => {\n            if (!hasValue) {\n                subscriber.next(defaultValue);\n            }\n            subscriber.complete();\n        }));\n    });\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function throwIfEmpty(errorFactory = defaultErrorFactory) {\n    return operate((source, subscriber) => {\n        let hasValue = false;\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            hasValue = true;\n            subscriber.next(value);\n        }, () => (hasValue ? subscriber.complete() : subscriber.error(errorFactory()))));\n    });\n}\nfunction defaultErrorFactory() {\n    return new EmptyError();\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { filter } from './filter';\nimport { take } from './take';\nimport { defaultIfEmpty } from './defaultIfEmpty';\nimport { throwIfEmpty } from './throwIfEmpty';\nimport { identity } from '../util/identity';\nexport function first(predicate, defaultValue) {\n    const hasDefaultValue = arguments.length >= 2;\n    return (source) => source.pipe(predicate ? filter((v, i) => predicate(v, i, source)) : identity, take(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(() => new EmptyError()));\n}\n","import { EMPTY } from '../observable/empty';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function takeLast(count) {\n    return count <= 0\n        ? () => EMPTY\n        : operate((source, subscriber) => {\n            let buffer = [];\n            source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n                buffer.push(value);\n                count < buffer.length && buffer.shift();\n            }, () => {\n                for (const value of buffer) {\n                    subscriber.next(value);\n                }\n                subscriber.complete();\n            }, undefined, () => {\n                buffer = null;\n            }));\n        });\n}\n","/**\n * @license Angular v16.2.12\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { ɵisPromise, ɵRuntimeError, Injectable, EventEmitter, inject, ViewContainerRef, ChangeDetectorRef, EnvironmentInjector, Directive, Input, Output, InjectionToken, reflectComponentType, Component, createEnvironmentInjector, ɵisNgModule, isStandalone, ɵisInjectable, Compiler, NgModuleFactory, ɵConsole, ɵInitialRenderPendingTasks, NgZone, ɵɵsanitizeUrlOrResourceUrl, booleanAttribute, Attribute, HostBinding, HostListener, Optional, ContentChildren, makeEnvironmentProviders, APP_BOOTSTRAP_LISTENER, ENVIRONMENT_INITIALIZER, Injector, ApplicationRef, InjectFlags, APP_INITIALIZER, NgProbeToken, SkipSelf, NgModule, Inject, Version } from '@angular/core';\nimport { isObservable, from, of, BehaviorSubject, combineLatest, EmptyError, concat, defer, pipe, throwError, EMPTY, ConnectableObservable, Subject, Subscription } from 'rxjs';\nimport * as i3 from '@angular/common';\nimport { Location, ViewportScroller, LOCATION_INITIALIZED, LocationStrategy, HashLocationStrategy, PathLocationStrategy } from '@angular/common';\nimport { map, switchMap, take, startWith, filter, mergeMap, first, concatMap, tap, catchError, scan, defaultIfEmpty, last as last$1, takeLast, mapTo, finalize, refCount, takeUntil, mergeAll } from 'rxjs/operators';\nimport * as i1 from '@angular/platform-browser';\n\n/**\n * The primary routing outlet.\n *\n * @publicApi\n */\nconst PRIMARY_OUTLET = 'primary';\n/**\n * A private symbol used to store the value of `Route.title` inside the `Route.data` if it is a\n * static string or `Route.resolve` if anything else. This allows us to reuse the existing route\n * data/resolvers to support the title feature without new instrumentation in the `Router` pipeline.\n */\nconst RouteTitleKey = /* @__PURE__ */ Symbol('RouteTitle');\nclass ParamsAsMap {\n    constructor(params) {\n        this.params = params || {};\n    }\n    has(name) {\n        return Object.prototype.hasOwnProperty.call(this.params, name);\n    }\n    get(name) {\n        if (this.has(name)) {\n            const v = this.params[name];\n            return Array.isArray(v) ? v[0] : v;\n        }\n        return null;\n    }\n    getAll(name) {\n        if (this.has(name)) {\n            const v = this.params[name];\n            return Array.isArray(v) ? v : [v];\n        }\n        return [];\n    }\n    get keys() {\n        return Object.keys(this.params);\n    }\n}\n/**\n * Converts a `Params` instance to a `ParamMap`.\n * @param params The instance to convert.\n * @returns The new map instance.\n *\n * @publicApi\n */\nfunction convertToParamMap(params) {\n    return new ParamsAsMap(params);\n}\n/**\n * Matches the route configuration (`route`) against the actual URL (`segments`).\n *\n * When no matcher is defined on a `Route`, this is the matcher used by the Router by default.\n *\n * @param segments The remaining unmatched segments in the current navigation\n * @param segmentGroup The current segment group being matched\n * @param route The `Route` to match against.\n *\n * @see {@link UrlMatchResult}\n * @see {@link Route}\n *\n * @returns The resulting match information or `null` if the `route` should not match.\n * @publicApi\n */\nfunction defaultUrlMatcher(segments, segmentGroup, route) {\n    const parts = route.path.split('/');\n    if (parts.length > segments.length) {\n        // The actual URL is shorter than the config, no match\n        return null;\n    }\n    if (route.pathMatch === 'full' &&\n        (segmentGroup.hasChildren() || parts.length < segments.length)) {\n        // The config is longer than the actual URL but we are looking for a full match, return null\n        return null;\n    }\n    const posParams = {};\n    // Check each config part against the actual URL\n    for (let index = 0; index < parts.length; index++) {\n        const part = parts[index];\n        const segment = segments[index];\n        const isParameter = part.startsWith(':');\n        if (isParameter) {\n            posParams[part.substring(1)] = segment;\n        }\n        else if (part !== segment.path) {\n            // The actual URL part does not match the config, no match\n            return null;\n        }\n    }\n    return { consumed: segments.slice(0, parts.length), posParams };\n}\n\nfunction shallowEqualArrays(a, b) {\n    if (a.length !== b.length)\n        return false;\n    for (let i = 0; i < a.length; ++i) {\n        if (!shallowEqual(a[i], b[i]))\n            return false;\n    }\n    return true;\n}\nfunction shallowEqual(a, b) {\n    // While `undefined` should never be possible, it would sometimes be the case in IE 11\n    // and pre-chromium Edge. The check below accounts for this edge case.\n    const k1 = a ? Object.keys(a) : undefined;\n    const k2 = b ? Object.keys(b) : undefined;\n    if (!k1 || !k2 || k1.length != k2.length) {\n        return false;\n    }\n    let key;\n    for (let i = 0; i < k1.length; i++) {\n        key = k1[i];\n        if (!equalArraysOrString(a[key], b[key])) {\n            return false;\n        }\n    }\n    return true;\n}\n/**\n * Test equality for arrays of strings or a string.\n */\nfunction equalArraysOrString(a, b) {\n    if (Array.isArray(a) && Array.isArray(b)) {\n        if (a.length !== b.length)\n            return false;\n        const aSorted = [...a].sort();\n        const bSorted = [...b].sort();\n        return aSorted.every((val, index) => bSorted[index] === val);\n    }\n    else {\n        return a === b;\n    }\n}\n/**\n * Return the last element of an array.\n */\nfunction last(a) {\n    return a.length > 0 ? a[a.length - 1] : null;\n}\nfunction wrapIntoObservable(value) {\n    if (isObservable(value)) {\n        return value;\n    }\n    if (ɵisPromise(value)) {\n        // Use `Promise.resolve()` to wrap promise-like instances.\n        // Required ie when a Resolver returns a AngularJS `$q` promise to correctly trigger the\n        // change detection.\n        return from(Promise.resolve(value));\n    }\n    return of(value);\n}\n\nconst pathCompareMap = {\n    'exact': equalSegmentGroups,\n    'subset': containsSegmentGroup,\n};\nconst paramCompareMap = {\n    'exact': equalParams,\n    'subset': containsParams,\n    'ignored': () => true,\n};\nfunction containsTree(container, containee, options) {\n    return pathCompareMap[options.paths](container.root, containee.root, options.matrixParams) &&\n        paramCompareMap[options.queryParams](container.queryParams, containee.queryParams) &&\n        !(options.fragment === 'exact' && container.fragment !== containee.fragment);\n}\nfunction equalParams(container, containee) {\n    // TODO: This does not handle array params correctly.\n    return shallowEqual(container, containee);\n}\nfunction equalSegmentGroups(container, containee, matrixParams) {\n    if (!equalPath(container.segments, containee.segments))\n        return false;\n    if (!matrixParamsMatch(container.segments, containee.segments, matrixParams)) {\n        return false;\n    }\n    if (container.numberOfChildren !== containee.numberOfChildren)\n        return false;\n    for (const c in containee.children) {\n        if (!container.children[c])\n            return false;\n        if (!equalSegmentGroups(container.children[c], containee.children[c], matrixParams))\n            return false;\n    }\n    return true;\n}\nfunction containsParams(container, containee) {\n    return Object.keys(containee).length <= Object.keys(container).length &&\n        Object.keys(containee).every(key => equalArraysOrString(container[key], containee[key]));\n}\nfunction containsSegmentGroup(container, containee, matrixParams) {\n    return containsSegmentGroupHelper(container, containee, containee.segments, matrixParams);\n}\nfunction containsSegmentGroupHelper(container, containee, containeePaths, matrixParams) {\n    if (container.segments.length > containeePaths.length) {\n        const current = container.segments.slice(0, containeePaths.length);\n        if (!equalPath(current, containeePaths))\n            return false;\n        if (containee.hasChildren())\n            return false;\n        if (!matrixParamsMatch(current, containeePaths, matrixParams))\n            return false;\n        return true;\n    }\n    else if (container.segments.length === containeePaths.length) {\n        if (!equalPath(container.segments, containeePaths))\n            return false;\n        if (!matrixParamsMatch(container.segments, containeePaths, matrixParams))\n            return false;\n        for (const c in containee.children) {\n            if (!container.children[c])\n                return false;\n            if (!containsSegmentGroup(container.children[c], containee.children[c], matrixParams)) {\n                return false;\n            }\n        }\n        return true;\n    }\n    else {\n        const current = containeePaths.slice(0, container.segments.length);\n        const next = containeePaths.slice(container.segments.length);\n        if (!equalPath(container.segments, current))\n            return false;\n        if (!matrixParamsMatch(container.segments, current, matrixParams))\n            return false;\n        if (!container.children[PRIMARY_OUTLET])\n            return false;\n        return containsSegmentGroupHelper(container.children[PRIMARY_OUTLET], containee, next, matrixParams);\n    }\n}\nfunction matrixParamsMatch(containerPaths, containeePaths, options) {\n    return containeePaths.every((containeeSegment, i) => {\n        return paramCompareMap[options](containerPaths[i].parameters, containeeSegment.parameters);\n    });\n}\n/**\n * @description\n *\n * Represents the parsed URL.\n *\n * Since a router state is a tree, and the URL is nothing but a serialized state, the URL is a\n * serialized tree.\n * UrlTree is a data structure that provides a lot of affordances in dealing with URLs\n *\n * @usageNotes\n * ### Example\n *\n * ```\n * @Component({templateUrl:'template.html'})\n * class MyComponent {\n *   constructor(router: Router) {\n *     const tree: UrlTree =\n *       router.parseUrl('/team/33/(user/victor//support:help)?debug=true#fragment');\n *     const f = tree.fragment; // return 'fragment'\n *     const q = tree.queryParams; // returns {debug: 'true'}\n *     const g: UrlSegmentGroup = tree.root.children[PRIMARY_OUTLET];\n *     const s: UrlSegment[] = g.segments; // returns 2 segments 'team' and '33'\n *     g.children[PRIMARY_OUTLET].segments; // returns 2 segments 'user' and 'victor'\n *     g.children['support'].segments; // return 1 segment 'help'\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nclass UrlTree {\n    constructor(\n    /** The root segment group of the URL tree */\n    root = new UrlSegmentGroup([], {}), \n    /** The query params of the URL */\n    queryParams = {}, \n    /** The fragment of the URL */\n    fragment = null) {\n        this.root = root;\n        this.queryParams = queryParams;\n        this.fragment = fragment;\n        if (typeof ngDevMode === 'undefined' || ngDevMode) {\n            if (root.segments.length > 0) {\n                throw new ɵRuntimeError(4015 /* RuntimeErrorCode.INVALID_ROOT_URL_SEGMENT */, 'The root `UrlSegmentGroup` should not contain `segments`. ' +\n                    'Instead, these segments belong in the `children` so they can be associated with a named outlet.');\n            }\n        }\n    }\n    get queryParamMap() {\n        if (!this._queryParamMap) {\n            this._queryParamMap = convertToParamMap(this.queryParams);\n        }\n        return this._queryParamMap;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return DEFAULT_SERIALIZER.serialize(this);\n    }\n}\n/**\n * @description\n *\n * Represents the parsed URL segment group.\n *\n * See `UrlTree` for more information.\n *\n * @publicApi\n */\nclass UrlSegmentGroup {\n    constructor(\n    /** The URL segments of this group. See `UrlSegment` for more information */\n    segments, \n    /** The list of children of this group */\n    children) {\n        this.segments = segments;\n        this.children = children;\n        /** The parent node in the url tree */\n        this.parent = null;\n        Object.values(children).forEach((v) => (v.parent = this));\n    }\n    /** Whether the segment has child segments */\n    hasChildren() {\n        return this.numberOfChildren > 0;\n    }\n    /** Number of child segments */\n    get numberOfChildren() {\n        return Object.keys(this.children).length;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return serializePaths(this);\n    }\n}\n/**\n * @description\n *\n * Represents a single URL segment.\n *\n * A UrlSegment is a part of a URL between the two slashes. It contains a path and the matrix\n * parameters associated with the segment.\n *\n * @usageNotes\n * ### Example\n *\n * ```\n * @Component({templateUrl:'template.html'})\n * class MyComponent {\n *   constructor(router: Router) {\n *     const tree: UrlTree = router.parseUrl('/team;id=33');\n *     const g: UrlSegmentGroup = tree.root.children[PRIMARY_OUTLET];\n *     const s: UrlSegment[] = g.segments;\n *     s[0].path; // returns 'team'\n *     s[0].parameters; // returns {id: 33}\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nclass UrlSegment {\n    constructor(\n    /** The path part of a URL segment */\n    path, \n    /** The matrix parameters associated with a segment */\n    parameters) {\n        this.path = path;\n        this.parameters = parameters;\n    }\n    get parameterMap() {\n        if (!this._parameterMap) {\n            this._parameterMap = convertToParamMap(this.parameters);\n        }\n        return this._parameterMap;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return serializePath(this);\n    }\n}\nfunction equalSegments(as, bs) {\n    return equalPath(as, bs) && as.every((a, i) => shallowEqual(a.parameters, bs[i].parameters));\n}\nfunction equalPath(as, bs) {\n    if (as.length !== bs.length)\n        return false;\n    return as.every((a, i) => a.path === bs[i].path);\n}\nfunction mapChildrenIntoArray(segment, fn) {\n    let res = [];\n    Object.entries(segment.children).forEach(([childOutlet, child]) => {\n        if (childOutlet === PRIMARY_OUTLET) {\n            res = res.concat(fn(child, childOutlet));\n        }\n    });\n    Object.entries(segment.children).forEach(([childOutlet, child]) => {\n        if (childOutlet !== PRIMARY_OUTLET) {\n            res = res.concat(fn(child, childOutlet));\n        }\n    });\n    return res;\n}\n/**\n * @description\n *\n * Serializes and deserializes a URL string into a URL tree.\n *\n * The url serialization strategy is customizable. You can\n * make all URLs case insensitive by providing a custom UrlSerializer.\n *\n * See `DefaultUrlSerializer` for an example of a URL serializer.\n *\n * @publicApi\n */\nclass UrlSerializer {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UrlSerializer, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UrlSerializer, providedIn: 'root', useFactory: () => new DefaultUrlSerializer() }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UrlSerializer, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: () => new DefaultUrlSerializer() }]\n        }] });\n/**\n * @description\n *\n * A default implementation of the `UrlSerializer`.\n *\n * Example URLs:\n *\n * ```\n * /inbox/33(popup:compose)\n * /inbox/33;open=true/messages/44\n * ```\n *\n * DefaultUrlSerializer uses parentheses to serialize secondary segments (e.g., popup:compose), the\n * colon syntax to specify the outlet, and the ';parameter=value' syntax (e.g., open=true) to\n * specify route specific parameters.\n *\n * @publicApi\n */\nclass DefaultUrlSerializer {\n    /** Parses a url into a `UrlTree` */\n    parse(url) {\n        const p = new UrlParser(url);\n        return new UrlTree(p.parseRootSegment(), p.parseQueryParams(), p.parseFragment());\n    }\n    /** Converts a `UrlTree` into a url */\n    serialize(tree) {\n        const segment = `/${serializeSegment(tree.root, true)}`;\n        const query = serializeQueryParams(tree.queryParams);\n        const fragment = typeof tree.fragment === `string` ? `#${encodeUriFragment(tree.fragment)}` : '';\n        return `${segment}${query}${fragment}`;\n    }\n}\nconst DEFAULT_SERIALIZER = new DefaultUrlSerializer();\nfunction serializePaths(segment) {\n    return segment.segments.map(p => serializePath(p)).join('/');\n}\nfunction serializeSegment(segment, root) {\n    if (!segment.hasChildren()) {\n        return serializePaths(segment);\n    }\n    if (root) {\n        const primary = segment.children[PRIMARY_OUTLET] ?\n            serializeSegment(segment.children[PRIMARY_OUTLET], false) :\n            '';\n        const children = [];\n        Object.entries(segment.children).forEach(([k, v]) => {\n            if (k !== PRIMARY_OUTLET) {\n                children.push(`${k}:${serializeSegment(v, false)}`);\n            }\n        });\n        return children.length > 0 ? `${primary}(${children.join('//')})` : primary;\n    }\n    else {\n        const children = mapChildrenIntoArray(segment, (v, k) => {\n            if (k === PRIMARY_OUTLET) {\n                return [serializeSegment(segment.children[PRIMARY_OUTLET], false)];\n            }\n            return [`${k}:${serializeSegment(v, false)}`];\n        });\n        // use no parenthesis if the only child is a primary outlet route\n        if (Object.keys(segment.children).length === 1 && segment.children[PRIMARY_OUTLET] != null) {\n            return `${serializePaths(segment)}/${children[0]}`;\n        }\n        return `${serializePaths(segment)}/(${children.join('//')})`;\n    }\n}\n/**\n * Encodes a URI string with the default encoding. This function will only ever be called from\n * `encodeUriQuery` or `encodeUriSegment` as it's the base set of encodings to be used. We need\n * a custom encoding because encodeURIComponent is too aggressive and encodes stuff that doesn't\n * have to be encoded per https://url.spec.whatwg.org.\n */\nfunction encodeUriString(s) {\n    return encodeURIComponent(s)\n        .replace(/%40/g, '@')\n        .replace(/%3A/gi, ':')\n        .replace(/%24/g, '$')\n        .replace(/%2C/gi, ',');\n}\n/**\n * This function should be used to encode both keys and values in a query string key/value. In\n * the following URL, you need to call encodeUriQuery on \"k\" and \"v\":\n *\n * http://www.site.org/html;mk=mv?k=v#f\n */\nfunction encodeUriQuery(s) {\n    return encodeUriString(s).replace(/%3B/gi, ';');\n}\n/**\n * This function should be used to encode a URL fragment. In the following URL, you need to call\n * encodeUriFragment on \"f\":\n *\n * http://www.site.org/html;mk=mv?k=v#f\n */\nfunction encodeUriFragment(s) {\n    return encodeURI(s);\n}\n/**\n * This function should be run on any URI segment as well as the key and value in a key/value\n * pair for matrix params. In the following URL, you need to call encodeUriSegment on \"html\",\n * \"mk\", and \"mv\":\n *\n * http://www.site.org/html;mk=mv?k=v#f\n */\nfunction encodeUriSegment(s) {\n    return encodeUriString(s).replace(/\\(/g, '%28').replace(/\\)/g, '%29').replace(/%26/gi, '&');\n}\nfunction decode(s) {\n    return decodeURIComponent(s);\n}\n// Query keys/values should have the \"+\" replaced first, as \"+\" in a query string is \" \".\n// decodeURIComponent function will not decode \"+\" as a space.\nfunction decodeQuery(s) {\n    return decode(s.replace(/\\+/g, '%20'));\n}\nfunction serializePath(path) {\n    return `${encodeUriSegment(path.path)}${serializeMatrixParams(path.parameters)}`;\n}\nfunction serializeMatrixParams(params) {\n    return Object.keys(params)\n        .map(key => `;${encodeUriSegment(key)}=${encodeUriSegment(params[key])}`)\n        .join('');\n}\nfunction serializeQueryParams(params) {\n    const strParams = Object.keys(params)\n        .map((name) => {\n        const value = params[name];\n        return Array.isArray(value) ?\n            value.map(v => `${encodeUriQuery(name)}=${encodeUriQuery(v)}`).join('&') :\n            `${encodeUriQuery(name)}=${encodeUriQuery(value)}`;\n    })\n        .filter(s => !!s);\n    return strParams.length ? `?${strParams.join('&')}` : '';\n}\nconst SEGMENT_RE = /^[^\\/()?;#]+/;\nfunction matchSegments(str) {\n    const match = str.match(SEGMENT_RE);\n    return match ? match[0] : '';\n}\nconst MATRIX_PARAM_SEGMENT_RE = /^[^\\/()?;=#]+/;\nfunction matchMatrixKeySegments(str) {\n    const match = str.match(MATRIX_PARAM_SEGMENT_RE);\n    return match ? match[0] : '';\n}\nconst QUERY_PARAM_RE = /^[^=?&#]+/;\n// Return the name of the query param at the start of the string or an empty string\nfunction matchQueryParams(str) {\n    const match = str.match(QUERY_PARAM_RE);\n    return match ? match[0] : '';\n}\nconst QUERY_PARAM_VALUE_RE = /^[^&#]+/;\n// Return the value of the query param at the start of the string or an empty string\nfunction matchUrlQueryParamValue(str) {\n    const match = str.match(QUERY_PARAM_VALUE_RE);\n    return match ? match[0] : '';\n}\nclass UrlParser {\n    constructor(url) {\n        this.url = url;\n        this.remaining = url;\n    }\n    parseRootSegment() {\n        this.consumeOptional('/');\n        if (this.remaining === '' || this.peekStartsWith('?') || this.peekStartsWith('#')) {\n            return new UrlSegmentGroup([], {});\n        }\n        // The root segment group never has segments\n        return new UrlSegmentGroup([], this.parseChildren());\n    }\n    parseQueryParams() {\n        const params = {};\n        if (this.consumeOptional('?')) {\n            do {\n                this.parseQueryParam(params);\n            } while (this.consumeOptional('&'));\n        }\n        return params;\n    }\n    parseFragment() {\n        return this.consumeOptional('#') ? decodeURIComponent(this.remaining) : null;\n    }\n    parseChildren() {\n        if (this.remaining === '') {\n            return {};\n        }\n        this.consumeOptional('/');\n        const segments = [];\n        if (!this.peekStartsWith('(')) {\n            segments.push(this.parseSegment());\n        }\n        while (this.peekStartsWith('/') && !this.peekStartsWith('//') && !this.peekStartsWith('/(')) {\n            this.capture('/');\n            segments.push(this.parseSegment());\n        }\n        let children = {};\n        if (this.peekStartsWith('/(')) {\n            this.capture('/');\n            children = this.parseParens(true);\n        }\n        let res = {};\n        if (this.peekStartsWith('(')) {\n            res = this.parseParens(false);\n        }\n        if (segments.length > 0 || Object.keys(children).length > 0) {\n            res[PRIMARY_OUTLET] = new UrlSegmentGroup(segments, children);\n        }\n        return res;\n    }\n    // parse a segment with its matrix parameters\n    // ie `name;k1=v1;k2`\n    parseSegment() {\n        const path = matchSegments(this.remaining);\n        if (path === '' && this.peekStartsWith(';')) {\n            throw new ɵRuntimeError(4009 /* RuntimeErrorCode.EMPTY_PATH_WITH_PARAMS */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                `Empty path url segment cannot have parameters: '${this.remaining}'.`);\n        }\n        this.capture(path);\n        return new UrlSegment(decode(path), this.parseMatrixParams());\n    }\n    parseMatrixParams() {\n        const params = {};\n        while (this.consumeOptional(';')) {\n            this.parseParam(params);\n        }\n        return params;\n    }\n    parseParam(params) {\n        const key = matchMatrixKeySegments(this.remaining);\n        if (!key) {\n            return;\n        }\n        this.capture(key);\n        let value = '';\n        if (this.consumeOptional('=')) {\n            const valueMatch = matchSegments(this.remaining);\n            if (valueMatch) {\n                value = valueMatch;\n                this.capture(value);\n            }\n        }\n        params[decode(key)] = decode(value);\n    }\n    // Parse a single query parameter `name[=value]`\n    parseQueryParam(params) {\n        const key = matchQueryParams(this.remaining);\n        if (!key) {\n            return;\n        }\n        this.capture(key);\n        let value = '';\n        if (this.consumeOptional('=')) {\n            const valueMatch = matchUrlQueryParamValue(this.remaining);\n            if (valueMatch) {\n                value = valueMatch;\n                this.capture(value);\n            }\n        }\n        const decodedKey = decodeQuery(key);\n        const decodedVal = decodeQuery(value);\n        if (params.hasOwnProperty(decodedKey)) {\n            // Append to existing values\n            let currentVal = params[decodedKey];\n            if (!Array.isArray(currentVal)) {\n                currentVal = [currentVal];\n                params[decodedKey] = currentVal;\n            }\n            currentVal.push(decodedVal);\n        }\n        else {\n            // Create a new value\n            params[decodedKey] = decodedVal;\n        }\n    }\n    // parse `(a/b//outlet_name:c/d)`\n    parseParens(allowPrimary) {\n        const segments = {};\n        this.capture('(');\n        while (!this.consumeOptional(')') && this.remaining.length > 0) {\n            const path = matchSegments(this.remaining);\n            const next = this.remaining[path.length];\n            // if is is not one of these characters, then the segment was unescaped\n            // or the group was not closed\n            if (next !== '/' && next !== ')' && next !== ';') {\n                throw new ɵRuntimeError(4010 /* RuntimeErrorCode.UNPARSABLE_URL */, (typeof ngDevMode === 'undefined' || ngDevMode) && `Cannot parse url '${this.url}'`);\n            }\n            let outletName = undefined;\n            if (path.indexOf(':') > -1) {\n                outletName = path.slice(0, path.indexOf(':'));\n                this.capture(outletName);\n                this.capture(':');\n            }\n            else if (allowPrimary) {\n                outletName = PRIMARY_OUTLET;\n            }\n            const children = this.parseChildren();\n            segments[outletName] = Object.keys(children).length === 1 ? children[PRIMARY_OUTLET] :\n                new UrlSegmentGroup([], children);\n            this.consumeOptional('//');\n        }\n        return segments;\n    }\n    peekStartsWith(str) {\n        return this.remaining.startsWith(str);\n    }\n    // Consumes the prefix when it is present and returns whether it has been consumed\n    consumeOptional(str) {\n        if (this.peekStartsWith(str)) {\n            this.remaining = this.remaining.substring(str.length);\n            return true;\n        }\n        return false;\n    }\n    capture(str) {\n        if (!this.consumeOptional(str)) {\n            throw new ɵRuntimeError(4011 /* RuntimeErrorCode.UNEXPECTED_VALUE_IN_URL */, (typeof ngDevMode === 'undefined' || ngDevMode) && `Expected \"${str}\".`);\n        }\n    }\n}\nfunction createRoot(rootCandidate) {\n    return rootCandidate.segments.length > 0 ?\n        new UrlSegmentGroup([], { [PRIMARY_OUTLET]: rootCandidate }) :\n        rootCandidate;\n}\n/**\n * Recursively\n * - merges primary segment children into their parents\n * - drops empty children (those which have no segments and no children themselves). This latter\n * prevents serializing a group into something like `/a(aux:)`, where `aux` is an empty child\n * segment.\n * - merges named outlets without a primary segment sibling into the children. This prevents\n * serializing a URL like `//(a:a)(b:b) instead of `/(a:a//b:b)` when the aux b route lives on the\n * root but the `a` route lives under an empty path primary route.\n */\nfunction squashSegmentGroup(segmentGroup) {\n    const newChildren = {};\n    for (const childOutlet of Object.keys(segmentGroup.children)) {\n        const child = segmentGroup.children[childOutlet];\n        const childCandidate = squashSegmentGroup(child);\n        // moves named children in an empty path primary child into this group\n        if (childOutlet === PRIMARY_OUTLET && childCandidate.segments.length === 0 &&\n            childCandidate.hasChildren()) {\n            for (const [grandChildOutlet, grandChild] of Object.entries(childCandidate.children)) {\n                newChildren[grandChildOutlet] = grandChild;\n            }\n        } // don't add empty children\n        else if (childCandidate.segments.length > 0 || childCandidate.hasChildren()) {\n            newChildren[childOutlet] = childCandidate;\n        }\n    }\n    const s = new UrlSegmentGroup(segmentGroup.segments, newChildren);\n    return mergeTrivialChildren(s);\n}\n/**\n * When possible, merges the primary outlet child into the parent `UrlSegmentGroup`.\n *\n * When a segment group has only one child which is a primary outlet, merges that child into the\n * parent. That is, the child segment group's segments are merged into the `s` and the child's\n * children become the children of `s`. Think of this like a 'squash', merging the child segment\n * group into the parent.\n */\nfunction mergeTrivialChildren(s) {\n    if (s.numberOfChildren === 1 && s.children[PRIMARY_OUTLET]) {\n        const c = s.children[PRIMARY_OUTLET];\n        return new UrlSegmentGroup(s.segments.concat(c.segments), c.children);\n    }\n    return s;\n}\nfunction isUrlTree(v) {\n    return v instanceof UrlTree;\n}\n\n/**\n * Creates a `UrlTree` relative to an `ActivatedRouteSnapshot`.\n *\n * @publicApi\n *\n *\n * @param relativeTo The `ActivatedRouteSnapshot` to apply the commands to\n * @param commands An array of URL fragments with which to construct the new URL tree.\n * If the path is static, can be the literal URL string. For a dynamic path, pass an array of path\n * segments, followed by the parameters for each segment.\n * The fragments are applied to the one provided in the `relativeTo` parameter.\n * @param queryParams The query parameters for the `UrlTree`. `null` if the `UrlTree` does not have\n *     any query parameters.\n * @param fragment The fragment for the `UrlTree`. `null` if the `UrlTree` does not have a fragment.\n *\n * @usageNotes\n *\n * ```\n * // create /team/33/user/11\n * createUrlTreeFromSnapshot(snapshot, ['/team', 33, 'user', 11]);\n *\n * // create /team/33;expand=true/user/11\n * createUrlTreeFromSnapshot(snapshot, ['/team', 33, {expand: true}, 'user', 11]);\n *\n * // you can collapse static segments like this (this works only with the first passed-in value):\n * createUrlTreeFromSnapshot(snapshot, ['/team/33/user', userId]);\n *\n * // If the first segment can contain slashes, and you do not want the router to split it,\n * // you can do the following:\n * createUrlTreeFromSnapshot(snapshot, [{segmentPath: '/one/two'}]);\n *\n * // create /team/33/(user/11//right:chat)\n * createUrlTreeFromSnapshot(snapshot, ['/team', 33, {outlets: {primary: 'user/11', right:\n * 'chat'}}], null, null);\n *\n * // remove the right secondary node\n * createUrlTreeFromSnapshot(snapshot, ['/team', 33, {outlets: {primary: 'user/11', right: null}}]);\n *\n * // For the examples below, assume the current URL is for the `/team/33/user/11` and the\n * `ActivatedRouteSnapshot` points to `user/11`:\n *\n * // navigate to /team/33/user/11/details\n * createUrlTreeFromSnapshot(snapshot, ['details']);\n *\n * // navigate to /team/33/user/22\n * createUrlTreeFromSnapshot(snapshot, ['../22']);\n *\n * // navigate to /team/44/user/22\n * createUrlTreeFromSnapshot(snapshot, ['../../team/44/user/22']);\n * ```\n */\nfunction createUrlTreeFromSnapshot(relativeTo, commands, queryParams = null, fragment = null) {\n    const relativeToUrlSegmentGroup = createSegmentGroupFromRoute(relativeTo);\n    return createUrlTreeFromSegmentGroup(relativeToUrlSegmentGroup, commands, queryParams, fragment);\n}\nfunction createSegmentGroupFromRoute(route) {\n    let targetGroup;\n    function createSegmentGroupFromRouteRecursive(currentRoute) {\n        const childOutlets = {};\n        for (const childSnapshot of currentRoute.children) {\n            const root = createSegmentGroupFromRouteRecursive(childSnapshot);\n            childOutlets[childSnapshot.outlet] = root;\n        }\n        const segmentGroup = new UrlSegmentGroup(currentRoute.url, childOutlets);\n        if (currentRoute === route) {\n            targetGroup = segmentGroup;\n        }\n        return segmentGroup;\n    }\n    const rootCandidate = createSegmentGroupFromRouteRecursive(route.root);\n    const rootSegmentGroup = createRoot(rootCandidate);\n    return targetGroup ?? rootSegmentGroup;\n}\nfunction createUrlTreeFromSegmentGroup(relativeTo, commands, queryParams, fragment) {\n    let root = relativeTo;\n    while (root.parent) {\n        root = root.parent;\n    }\n    // There are no commands so the `UrlTree` goes to the same path as the one created from the\n    // `UrlSegmentGroup`. All we need to do is update the `queryParams` and `fragment` without\n    // applying any other logic.\n    if (commands.length === 0) {\n        return tree(root, root, root, queryParams, fragment);\n    }\n    const nav = computeNavigation(commands);\n    if (nav.toRoot()) {\n        return tree(root, root, new UrlSegmentGroup([], {}), queryParams, fragment);\n    }\n    const position = findStartingPositionForTargetGroup(nav, root, relativeTo);\n    const newSegmentGroup = position.processChildren ?\n        updateSegmentGroupChildren(position.segmentGroup, position.index, nav.commands) :\n        updateSegmentGroup(position.segmentGroup, position.index, nav.commands);\n    return tree(root, position.segmentGroup, newSegmentGroup, queryParams, fragment);\n}\nfunction isMatrixParams(command) {\n    return typeof command === 'object' && command != null && !command.outlets && !command.segmentPath;\n}\n/**\n * Determines if a given command has an `outlets` map. When we encounter a command\n * with an outlets k/v map, we need to apply each outlet individually to the existing segment.\n */\nfunction isCommandWithOutlets(command) {\n    return typeof command === 'object' && command != null && command.outlets;\n}\nfunction tree(oldRoot, oldSegmentGroup, newSegmentGroup, queryParams, fragment) {\n    let qp = {};\n    if (queryParams) {\n        Object.entries(queryParams).forEach(([name, value]) => {\n            qp[name] = Array.isArray(value) ? value.map((v) => `${v}`) : `${value}`;\n        });\n    }\n    let rootCandidate;\n    if (oldRoot === oldSegmentGroup) {\n        rootCandidate = newSegmentGroup;\n    }\n    else {\n        rootCandidate = replaceSegment(oldRoot, oldSegmentGroup, newSegmentGroup);\n    }\n    const newRoot = createRoot(squashSegmentGroup(rootCandidate));\n    return new UrlTree(newRoot, qp, fragment);\n}\n/**\n * Replaces the `oldSegment` which is located in some child of the `current` with the `newSegment`.\n * This also has the effect of creating new `UrlSegmentGroup` copies to update references. This\n * shouldn't be necessary but the fallback logic for an invalid ActivatedRoute in the creation uses\n * the Router's current url tree. If we don't create new segment groups, we end up modifying that\n * value.\n */\nfunction replaceSegment(current, oldSegment, newSegment) {\n    const children = {};\n    Object.entries(current.children).forEach(([outletName, c]) => {\n        if (c === oldSegment) {\n            children[outletName] = newSegment;\n        }\n        else {\n            children[outletName] = replaceSegment(c, oldSegment, newSegment);\n        }\n    });\n    return new UrlSegmentGroup(current.segments, children);\n}\nclass Navigation {\n    constructor(isAbsolute, numberOfDoubleDots, commands) {\n        this.isAbsolute = isAbsolute;\n        this.numberOfDoubleDots = numberOfDoubleDots;\n        this.commands = commands;\n        if (isAbsolute && commands.length > 0 && isMatrixParams(commands[0])) {\n            throw new ɵRuntimeError(4003 /* RuntimeErrorCode.ROOT_SEGMENT_MATRIX_PARAMS */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                'Root segment cannot have matrix parameters');\n        }\n        const cmdWithOutlet = commands.find(isCommandWithOutlets);\n        if (cmdWithOutlet && cmdWithOutlet !== last(commands)) {\n            throw new ɵRuntimeError(4004 /* RuntimeErrorCode.MISPLACED_OUTLETS_COMMAND */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                '{outlets:{}} has to be the last command');\n        }\n    }\n    toRoot() {\n        return this.isAbsolute && this.commands.length === 1 && this.commands[0] == '/';\n    }\n}\n/** Transforms commands to a normalized `Navigation` */\nfunction computeNavigation(commands) {\n    if ((typeof commands[0] === 'string') && commands.length === 1 && commands[0] === '/') {\n        return new Navigation(true, 0, commands);\n    }\n    let numberOfDoubleDots = 0;\n    let isAbsolute = false;\n    const res = commands.reduce((res, cmd, cmdIdx) => {\n        if (typeof cmd === 'object' && cmd != null) {\n            if (cmd.outlets) {\n                const outlets = {};\n                Object.entries(cmd.outlets).forEach(([name, commands]) => {\n                    outlets[name] = typeof commands === 'string' ? commands.split('/') : commands;\n                });\n                return [...res, { outlets }];\n            }\n            if (cmd.segmentPath) {\n                return [...res, cmd.segmentPath];\n            }\n        }\n        if (!(typeof cmd === 'string')) {\n            return [...res, cmd];\n        }\n        if (cmdIdx === 0) {\n            cmd.split('/').forEach((urlPart, partIndex) => {\n                if (partIndex == 0 && urlPart === '.') {\n                    // skip './a'\n                }\n                else if (partIndex == 0 && urlPart === '') { //  '/a'\n                    isAbsolute = true;\n                }\n                else if (urlPart === '..') { //  '../a'\n                    numberOfDoubleDots++;\n                }\n                else if (urlPart != '') {\n                    res.push(urlPart);\n                }\n            });\n            return res;\n        }\n        return [...res, cmd];\n    }, []);\n    return new Navigation(isAbsolute, numberOfDoubleDots, res);\n}\nclass Position {\n    constructor(segmentGroup, processChildren, index) {\n        this.segmentGroup = segmentGroup;\n        this.processChildren = processChildren;\n        this.index = index;\n    }\n}\nfunction findStartingPositionForTargetGroup(nav, root, target) {\n    if (nav.isAbsolute) {\n        return new Position(root, true, 0);\n    }\n    if (!target) {\n        // `NaN` is used only to maintain backwards compatibility with incorrectly mocked\n        // `ActivatedRouteSnapshot` in tests. In prior versions of this code, the position here was\n        // determined based on an internal property that was rarely mocked, resulting in `NaN`. In\n        // reality, this code path should _never_ be touched since `target` is not allowed to be falsey.\n        return new Position(root, false, NaN);\n    }\n    if (target.parent === null) {\n        return new Position(target, true, 0);\n    }\n    const modifier = isMatrixParams(nav.commands[0]) ? 0 : 1;\n    const index = target.segments.length - 1 + modifier;\n    return createPositionApplyingDoubleDots(target, index, nav.numberOfDoubleDots);\n}\nfunction createPositionApplyingDoubleDots(group, index, numberOfDoubleDots) {\n    let g = group;\n    let ci = index;\n    let dd = numberOfDoubleDots;\n    while (dd > ci) {\n        dd -= ci;\n        g = g.parent;\n        if (!g) {\n            throw new ɵRuntimeError(4005 /* RuntimeErrorCode.INVALID_DOUBLE_DOTS */, (typeof ngDevMode === 'undefined' || ngDevMode) && 'Invalid number of \\'../\\'');\n        }\n        ci = g.segments.length;\n    }\n    return new Position(g, false, ci - dd);\n}\nfunction getOutlets(commands) {\n    if (isCommandWithOutlets(commands[0])) {\n        return commands[0].outlets;\n    }\n    return { [PRIMARY_OUTLET]: commands };\n}\nfunction updateSegmentGroup(segmentGroup, startIndex, commands) {\n    if (!segmentGroup) {\n        segmentGroup = new UrlSegmentGroup([], {});\n    }\n    if (segmentGroup.segments.length === 0 && segmentGroup.hasChildren()) {\n        return updateSegmentGroupChildren(segmentGroup, startIndex, commands);\n    }\n    const m = prefixedWith(segmentGroup, startIndex, commands);\n    const slicedCommands = commands.slice(m.commandIndex);\n    if (m.match && m.pathIndex < segmentGroup.segments.length) {\n        const g = new UrlSegmentGroup(segmentGroup.segments.slice(0, m.pathIndex), {});\n        g.children[PRIMARY_OUTLET] =\n            new UrlSegmentGroup(segmentGroup.segments.slice(m.pathIndex), segmentGroup.children);\n        return updateSegmentGroupChildren(g, 0, slicedCommands);\n    }\n    else if (m.match && slicedCommands.length === 0) {\n        return new UrlSegmentGroup(segmentGroup.segments, {});\n    }\n    else if (m.match && !segmentGroup.hasChildren()) {\n        return createNewSegmentGroup(segmentGroup, startIndex, commands);\n    }\n    else if (m.match) {\n        return updateSegmentGroupChildren(segmentGroup, 0, slicedCommands);\n    }\n    else {\n        return createNewSegmentGroup(segmentGroup, startIndex, commands);\n    }\n}\nfunction updateSegmentGroupChildren(segmentGroup, startIndex, commands) {\n    if (commands.length === 0) {\n        return new UrlSegmentGroup(segmentGroup.segments, {});\n    }\n    else {\n        const outlets = getOutlets(commands);\n        const children = {};\n        // If the set of commands applies to anything other than the primary outlet and the child\n        // segment is an empty path primary segment on its own, we want to apply the commands to the\n        // empty child path rather than here. The outcome is that the empty primary child is effectively\n        // removed from the final output UrlTree. Imagine the following config:\n        //\n        // {path: '', children: [{path: '**', outlet: 'popup'}]}.\n        //\n        // Navigation to /(popup:a) will activate the child outlet correctly Given a follow-up\n        // navigation with commands\n        // ['/', {outlets: {'popup': 'b'}}], we _would not_ want to apply the outlet commands to the\n        // root segment because that would result in\n        // //(popup:a)(popup:b) since the outlet command got applied one level above where it appears in\n        // the `ActivatedRoute` rather than updating the existing one.\n        //\n        // Because empty paths do not appear in the URL segments and the fact that the segments used in\n        // the output `UrlTree` are squashed to eliminate these empty paths where possible\n        // https://github.com/angular/angular/blob/13f10de40e25c6900ca55bd83b36bd533dacfa9e/packages/router/src/url_tree.ts#L755\n        // it can be hard to determine what is the right thing to do when applying commands to a\n        // `UrlSegmentGroup` that is created from an \"unsquashed\"/expanded `ActivatedRoute` tree.\n        // This code effectively \"squashes\" empty path primary routes when they have no siblings on\n        // the same level of the tree.\n        if (Object.keys(outlets).some(o => o !== PRIMARY_OUTLET) &&\n            segmentGroup.children[PRIMARY_OUTLET] && segmentGroup.numberOfChildren === 1 &&\n            segmentGroup.children[PRIMARY_OUTLET].segments.length === 0) {\n            const childrenOfEmptyChild = updateSegmentGroupChildren(segmentGroup.children[PRIMARY_OUTLET], startIndex, commands);\n            return new UrlSegmentGroup(segmentGroup.segments, childrenOfEmptyChild.children);\n        }\n        Object.entries(outlets).forEach(([outlet, commands]) => {\n            if (typeof commands === 'string') {\n                commands = [commands];\n            }\n            if (commands !== null) {\n                children[outlet] = updateSegmentGroup(segmentGroup.children[outlet], startIndex, commands);\n            }\n        });\n        Object.entries(segmentGroup.children).forEach(([childOutlet, child]) => {\n            if (outlets[childOutlet] === undefined) {\n                children[childOutlet] = child;\n            }\n        });\n        return new UrlSegmentGroup(segmentGroup.segments, children);\n    }\n}\nfunction prefixedWith(segmentGroup, startIndex, commands) {\n    let currentCommandIndex = 0;\n    let currentPathIndex = startIndex;\n    const noMatch = { match: false, pathIndex: 0, commandIndex: 0 };\n    while (currentPathIndex < segmentGroup.segments.length) {\n        if (currentCommandIndex >= commands.length)\n            return noMatch;\n        const path = segmentGroup.segments[currentPathIndex];\n        const command = commands[currentCommandIndex];\n        // Do not try to consume command as part of the prefixing if it has outlets because it can\n        // contain outlets other than the one being processed. Consuming the outlets command would\n        // result in other outlets being ignored.\n        if (isCommandWithOutlets(command)) {\n            break;\n        }\n        const curr = `${command}`;\n        const next = currentCommandIndex < commands.length - 1 ? commands[currentCommandIndex + 1] : null;\n        if (currentPathIndex > 0 && curr === undefined)\n            break;\n        if (curr && next && (typeof next === 'object') && next.outlets === undefined) {\n            if (!compare(curr, next, path))\n                return noMatch;\n            currentCommandIndex += 2;\n        }\n        else {\n            if (!compare(curr, {}, path))\n                return noMatch;\n            currentCommandIndex++;\n        }\n        currentPathIndex++;\n    }\n    return { match: true, pathIndex: currentPathIndex, commandIndex: currentCommandIndex };\n}\nfunction createNewSegmentGroup(segmentGroup, startIndex, commands) {\n    const paths = segmentGroup.segments.slice(0, startIndex);\n    let i = 0;\n    while (i < commands.length) {\n        const command = commands[i];\n        if (isCommandWithOutlets(command)) {\n            const children = createNewSegmentChildren(command.outlets);\n            return new UrlSegmentGroup(paths, children);\n        }\n        // if we start with an object literal, we need to reuse the path part from the segment\n        if (i === 0 && isMatrixParams(commands[0])) {\n            const p = segmentGroup.segments[startIndex];\n            paths.push(new UrlSegment(p.path, stringify(commands[0])));\n            i++;\n            continue;\n        }\n        const curr = isCommandWithOutlets(command) ? command.outlets[PRIMARY_OUTLET] : `${command}`;\n        const next = (i < commands.length - 1) ? commands[i + 1] : null;\n        if (curr && next && isMatrixParams(next)) {\n            paths.push(new UrlSegment(curr, stringify(next)));\n            i += 2;\n        }\n        else {\n            paths.push(new UrlSegment(curr, {}));\n            i++;\n        }\n    }\n    return new UrlSegmentGroup(paths, {});\n}\nfunction createNewSegmentChildren(outlets) {\n    const children = {};\n    Object.entries(outlets).forEach(([outlet, commands]) => {\n        if (typeof commands === 'string') {\n            commands = [commands];\n        }\n        if (commands !== null) {\n            children[outlet] = createNewSegmentGroup(new UrlSegmentGroup([], {}), 0, commands);\n        }\n    });\n    return children;\n}\nfunction stringify(params) {\n    const res = {};\n    Object.entries(params).forEach(([k, v]) => res[k] = `${v}`);\n    return res;\n}\nfunction compare(path, params, segment) {\n    return path == segment.path && shallowEqual(params, segment.parameters);\n}\n\nconst IMPERATIVE_NAVIGATION = 'imperative';\n/**\n * Base for events the router goes through, as opposed to events tied to a specific\n * route. Fired one time for any given navigation.\n *\n * The following code shows how a class subscribes to router events.\n *\n * ```ts\n * import {Event, RouterEvent, Router} from '@angular/router';\n *\n * class MyService {\n *   constructor(public router: Router) {\n *     router.events.pipe(\n *        filter((e: Event | RouterEvent): e is RouterEvent => e instanceof RouterEvent)\n *     ).subscribe((e: RouterEvent) => {\n *       // Do something\n *     });\n *   }\n * }\n * ```\n *\n * @see {@link Event}\n * @see [Router events summary](guide/router-reference#router-events)\n * @publicApi\n */\nclass RouterEvent {\n    constructor(\n    /** A unique ID that the router assigns to every router navigation. */\n    id, \n    /** The URL that is the destination for this navigation. */\n    url) {\n        this.id = id;\n        this.url = url;\n    }\n}\n/**\n * An event triggered when a navigation starts.\n *\n * @publicApi\n */\nclass NavigationStart extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    navigationTrigger = 'imperative', \n    /** @docsNotRequired */\n    restoredState = null) {\n        super(id, url);\n        this.type = 0 /* EventType.NavigationStart */;\n        this.navigationTrigger = navigationTrigger;\n        this.restoredState = restoredState;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return `NavigationStart(id: ${this.id}, url: '${this.url}')`;\n    }\n}\n/**\n * An event triggered when a navigation ends successfully.\n *\n * @see {@link NavigationStart}\n * @see {@link NavigationCancel}\n * @see {@link NavigationError}\n *\n * @publicApi\n */\nclass NavigationEnd extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    urlAfterRedirects) {\n        super(id, url);\n        this.urlAfterRedirects = urlAfterRedirects;\n        this.type = 1 /* EventType.NavigationEnd */;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return `NavigationEnd(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}')`;\n    }\n}\n/**\n * An event triggered when a navigation is canceled, directly or indirectly.\n * This can happen for several reasons including when a route guard\n * returns `false` or initiates a redirect by returning a `UrlTree`.\n *\n * @see {@link NavigationStart}\n * @see {@link NavigationEnd}\n * @see {@link NavigationError}\n *\n * @publicApi\n */\nclass NavigationCancel extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /**\n     * A description of why the navigation was cancelled. For debug purposes only. Use `code`\n     * instead for a stable cancellation reason that can be used in production.\n     */\n    reason, \n    /**\n     * A code to indicate why the navigation was canceled. This cancellation code is stable for\n     * the reason and can be relied on whereas the `reason` string could change and should not be\n     * used in production.\n     */\n    code) {\n        super(id, url);\n        this.reason = reason;\n        this.code = code;\n        this.type = 2 /* EventType.NavigationCancel */;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return `NavigationCancel(id: ${this.id}, url: '${this.url}')`;\n    }\n}\n/**\n * An event triggered when a navigation is skipped.\n * This can happen for a couple reasons including onSameUrlHandling\n * is set to `ignore` and the navigation URL is not different than the\n * current state.\n *\n * @publicApi\n */\nclass NavigationSkipped extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /**\n     * A description of why the navigation was skipped. For debug purposes only. Use `code`\n     * instead for a stable skipped reason that can be used in production.\n     */\n    reason, \n    /**\n     * A code to indicate why the navigation was skipped. This code is stable for\n     * the reason and can be relied on whereas the `reason` string could change and should not be\n     * used in production.\n     */\n    code) {\n        super(id, url);\n        this.reason = reason;\n        this.code = code;\n        this.type = 16 /* EventType.NavigationSkipped */;\n    }\n}\n/**\n * An event triggered when a navigation fails due to an unexpected error.\n *\n * @see {@link NavigationStart}\n * @see {@link NavigationEnd}\n * @see {@link NavigationCancel}\n *\n * @publicApi\n */\nclass NavigationError extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    error, \n    /**\n     * The target of the navigation when the error occurred.\n     *\n     * Note that this can be `undefined` because an error could have occurred before the\n     * `RouterStateSnapshot` was created for the navigation.\n     */\n    target) {\n        super(id, url);\n        this.error = error;\n        this.target = target;\n        this.type = 3 /* EventType.NavigationError */;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return `NavigationError(id: ${this.id}, url: '${this.url}', error: ${this.error})`;\n    }\n}\n/**\n * An event triggered when routes are recognized.\n *\n * @publicApi\n */\nclass RoutesRecognized extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    urlAfterRedirects, \n    /** @docsNotRequired */\n    state) {\n        super(id, url);\n        this.urlAfterRedirects = urlAfterRedirects;\n        this.state = state;\n        this.type = 4 /* EventType.RoutesRecognized */;\n    }\n    /** @docsNotRequired */\n    toString() {\n        return `RoutesRecognized(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;\n    }\n}\n/**\n * An event triggered at the start of the Guard phase of routing.\n *\n * @see {@link GuardsCheckEnd}\n *\n * @publicApi\n */\nclass GuardsCheckStart extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    urlAfterRedirects, \n    /** @docsNotRequired */\n    state) {\n        super(id, url);\n        this.urlAfterRedirects = urlAfterRedirects;\n        this.state = state;\n        this.type = 7 /* EventType.GuardsCheckStart */;\n    }\n    toString() {\n        return `GuardsCheckStart(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;\n    }\n}\n/**\n * An event triggered at the end of the Guard phase of routing.\n *\n * @see {@link GuardsCheckStart}\n *\n * @publicApi\n */\nclass GuardsCheckEnd extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    urlAfterRedirects, \n    /** @docsNotRequired */\n    state, \n    /** @docsNotRequired */\n    shouldActivate) {\n        super(id, url);\n        this.urlAfterRedirects = urlAfterRedirects;\n        this.state = state;\n        this.shouldActivate = shouldActivate;\n        this.type = 8 /* EventType.GuardsCheckEnd */;\n    }\n    toString() {\n        return `GuardsCheckEnd(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state}, shouldActivate: ${this.shouldActivate})`;\n    }\n}\n/**\n * An event triggered at the start of the Resolve phase of routing.\n *\n * Runs in the \"resolve\" phase whether or not there is anything to resolve.\n * In future, may change to only run when there are things to be resolved.\n *\n * @see {@link ResolveEnd}\n *\n * @publicApi\n */\nclass ResolveStart extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    urlAfterRedirects, \n    /** @docsNotRequired */\n    state) {\n        super(id, url);\n        this.urlAfterRedirects = urlAfterRedirects;\n        this.state = state;\n        this.type = 5 /* EventType.ResolveStart */;\n    }\n    toString() {\n        return `ResolveStart(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;\n    }\n}\n/**\n * An event triggered at the end of the Resolve phase of routing.\n * @see {@link ResolveStart}\n *\n * @publicApi\n */\nclass ResolveEnd extends RouterEvent {\n    constructor(\n    /** @docsNotRequired */\n    id, \n    /** @docsNotRequired */\n    url, \n    /** @docsNotRequired */\n    urlAfterRedirects, \n    /** @docsNotRequired */\n    state) {\n        super(id, url);\n        this.urlAfterRedirects = urlAfterRedirects;\n        this.state = state;\n        this.type = 6 /* EventType.ResolveEnd */;\n    }\n    toString() {\n        return `ResolveEnd(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;\n    }\n}\n/**\n * An event triggered before lazy loading a route configuration.\n *\n * @see {@link RouteConfigLoadEnd}\n *\n * @publicApi\n */\nclass RouteConfigLoadStart {\n    constructor(\n    /** @docsNotRequired */\n    route) {\n        this.route = route;\n        this.type = 9 /* EventType.RouteConfigLoadStart */;\n    }\n    toString() {\n        return `RouteConfigLoadStart(path: ${this.route.path})`;\n    }\n}\n/**\n * An event triggered when a route has been lazy loaded.\n *\n * @see {@link RouteConfigLoadStart}\n *\n * @publicApi\n */\nclass RouteConfigLoadEnd {\n    constructor(\n    /** @docsNotRequired */\n    route) {\n        this.route = route;\n        this.type = 10 /* EventType.RouteConfigLoadEnd */;\n    }\n    toString() {\n        return `RouteConfigLoadEnd(path: ${this.route.path})`;\n    }\n}\n/**\n * An event triggered at the start of the child-activation\n * part of the Resolve phase of routing.\n * @see {@link ChildActivationEnd}\n * @see {@link ResolveStart}\n *\n * @publicApi\n */\nclass ChildActivationStart {\n    constructor(\n    /** @docsNotRequired */\n    snapshot) {\n        this.snapshot = snapshot;\n        this.type = 11 /* EventType.ChildActivationStart */;\n    }\n    toString() {\n        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';\n        return `ChildActivationStart(path: '${path}')`;\n    }\n}\n/**\n * An event triggered at the end of the child-activation part\n * of the Resolve phase of routing.\n * @see {@link ChildActivationStart}\n * @see {@link ResolveStart}\n * @publicApi\n */\nclass ChildActivationEnd {\n    constructor(\n    /** @docsNotRequired */\n    snapshot) {\n        this.snapshot = snapshot;\n        this.type = 12 /* EventType.ChildActivationEnd */;\n    }\n    toString() {\n        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';\n        return `ChildActivationEnd(path: '${path}')`;\n    }\n}\n/**\n * An event triggered at the start of the activation part\n * of the Resolve phase of routing.\n * @see {@link ActivationEnd}\n * @see {@link ResolveStart}\n *\n * @publicApi\n */\nclass ActivationStart {\n    constructor(\n    /** @docsNotRequired */\n    snapshot) {\n        this.snapshot = snapshot;\n        this.type = 13 /* EventType.ActivationStart */;\n    }\n    toString() {\n        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';\n        return `ActivationStart(path: '${path}')`;\n    }\n}\n/**\n * An event triggered at the end of the activation part\n * of the Resolve phase of routing.\n * @see {@link ActivationStart}\n * @see {@link ResolveStart}\n *\n * @publicApi\n */\nclass ActivationEnd {\n    constructor(\n    /** @docsNotRequired */\n    snapshot) {\n        this.snapshot = snapshot;\n        this.type = 14 /* EventType.ActivationEnd */;\n    }\n    toString() {\n        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';\n        return `ActivationEnd(path: '${path}')`;\n    }\n}\n/**\n * An event triggered by scrolling.\n *\n * @publicApi\n */\nclass Scroll {\n    constructor(\n    /** @docsNotRequired */\n    routerEvent, \n    /** @docsNotRequired */\n    position, \n    /** @docsNotRequired */\n    anchor) {\n        this.routerEvent = routerEvent;\n        this.position = position;\n        this.anchor = anchor;\n        this.type = 15 /* EventType.Scroll */;\n    }\n    toString() {\n        const pos = this.position ? `${this.position[0]}, ${this.position[1]}` : null;\n        return `Scroll(anchor: '${this.anchor}', position: '${pos}')`;\n    }\n}\nclass BeforeActivateRoutes {\n}\nclass RedirectRequest {\n    constructor(url) {\n        this.url = url;\n    }\n}\nfunction stringifyEvent(routerEvent) {\n    switch (routerEvent.type) {\n        case 14 /* EventType.ActivationEnd */:\n            return `ActivationEnd(path: '${routerEvent.snapshot.routeConfig?.path || ''}')`;\n        case 13 /* EventType.ActivationStart */:\n            return `ActivationStart(path: '${routerEvent.snapshot.routeConfig?.path || ''}')`;\n        case 12 /* EventType.ChildActivationEnd */:\n            return `ChildActivationEnd(path: '${routerEvent.snapshot.routeConfig?.path || ''}')`;\n        case 11 /* EventType.ChildActivationStart */:\n            return `ChildActivationStart(path: '${routerEvent.snapshot.routeConfig?.path || ''}')`;\n        case 8 /* EventType.GuardsCheckEnd */:\n            return `GuardsCheckEnd(id: ${routerEvent.id}, url: '${routerEvent.url}', urlAfterRedirects: '${routerEvent.urlAfterRedirects}', state: ${routerEvent.state}, shouldActivate: ${routerEvent.shouldActivate})`;\n        case 7 /* EventType.GuardsCheckStart */:\n            return `GuardsCheckStart(id: ${routerEvent.id}, url: '${routerEvent.url}', urlAfterRedirects: '${routerEvent.urlAfterRedirects}', state: ${routerEvent.state})`;\n        case 2 /* EventType.NavigationCancel */:\n            return `NavigationCancel(id: ${routerEvent.id}, url: '${routerEvent.url}')`;\n        case 16 /* EventType.NavigationSkipped */:\n            return `NavigationSkipped(id: ${routerEvent.id}, url: '${routerEvent.url}')`;\n        case 1 /* EventType.NavigationEnd */:\n            return `NavigationEnd(id: ${routerEvent.id}, url: '${routerEvent.url}', urlAfterRedirects: '${routerEvent.urlAfterRedirects}')`;\n        case 3 /* EventType.NavigationError */:\n            return `NavigationError(id: ${routerEvent.id}, url: '${routerEvent.url}', error: ${routerEvent.error})`;\n        case 0 /* EventType.NavigationStart */:\n            return `NavigationStart(id: ${routerEvent.id}, url: '${routerEvent.url}')`;\n        case 6 /* EventType.ResolveEnd */:\n            return `ResolveEnd(id: ${routerEvent.id}, url: '${routerEvent.url}', urlAfterRedirects: '${routerEvent.urlAfterRedirects}', state: ${routerEvent.state})`;\n        case 5 /* EventType.ResolveStart */:\n            return `ResolveStart(id: ${routerEvent.id}, url: '${routerEvent.url}', urlAfterRedirects: '${routerEvent.urlAfterRedirects}', state: ${routerEvent.state})`;\n        case 10 /* EventType.RouteConfigLoadEnd */:\n            return `RouteConfigLoadEnd(path: ${routerEvent.route.path})`;\n        case 9 /* EventType.RouteConfigLoadStart */:\n            return `RouteConfigLoadStart(path: ${routerEvent.route.path})`;\n        case 4 /* EventType.RoutesRecognized */:\n            return `RoutesRecognized(id: ${routerEvent.id}, url: '${routerEvent.url}', urlAfterRedirects: '${routerEvent.urlAfterRedirects}', state: ${routerEvent.state})`;\n        case 15 /* EventType.Scroll */:\n            const pos = routerEvent.position ? `${routerEvent.position[0]}, ${routerEvent.position[1]}` : null;\n            return `Scroll(anchor: '${routerEvent.anchor}', position: '${pos}')`;\n    }\n}\n\n/**\n * Store contextual information about a `RouterOutlet`\n *\n * @publicApi\n */\nclass OutletContext {\n    constructor() {\n        this.outlet = null;\n        this.route = null;\n        this.injector = null;\n        this.children = new ChildrenOutletContexts();\n        this.attachRef = null;\n    }\n}\n/**\n * Store contextual information about the children (= nested) `RouterOutlet`\n *\n * @publicApi\n */\nclass ChildrenOutletContexts {\n    constructor() {\n        // contexts for child outlets, by name.\n        this.contexts = new Map();\n    }\n    /** Called when a `RouterOutlet` directive is instantiated */\n    onChildOutletCreated(childName, outlet) {\n        const context = this.getOrCreateContext(childName);\n        context.outlet = outlet;\n        this.contexts.set(childName, context);\n    }\n    /**\n     * Called when a `RouterOutlet` directive is destroyed.\n     * We need to keep the context as the outlet could be destroyed inside a NgIf and might be\n     * re-created later.\n     */\n    onChildOutletDestroyed(childName) {\n        const context = this.getContext(childName);\n        if (context) {\n            context.outlet = null;\n            context.attachRef = null;\n        }\n    }\n    /**\n     * Called when the corresponding route is deactivated during navigation.\n     * Because the component get destroyed, all children outlet are destroyed.\n     */\n    onOutletDeactivated() {\n        const contexts = this.contexts;\n        this.contexts = new Map();\n        return contexts;\n    }\n    onOutletReAttached(contexts) {\n        this.contexts = contexts;\n    }\n    getOrCreateContext(childName) {\n        let context = this.getContext(childName);\n        if (!context) {\n            context = new OutletContext();\n            this.contexts.set(childName, context);\n        }\n        return context;\n    }\n    getContext(childName) {\n        return this.contexts.get(childName) || null;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ChildrenOutletContexts, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ChildrenOutletContexts, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ChildrenOutletContexts, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n\nclass Tree {\n    constructor(root) {\n        this._root = root;\n    }\n    get root() {\n        return this._root.value;\n    }\n    /**\n     * @internal\n     */\n    parent(t) {\n        const p = this.pathFromRoot(t);\n        return p.length > 1 ? p[p.length - 2] : null;\n    }\n    /**\n     * @internal\n     */\n    children(t) {\n        const n = findNode(t, this._root);\n        return n ? n.children.map(t => t.value) : [];\n    }\n    /**\n     * @internal\n     */\n    firstChild(t) {\n        const n = findNode(t, this._root);\n        return n && n.children.length > 0 ? n.children[0].value : null;\n    }\n    /**\n     * @internal\n     */\n    siblings(t) {\n        const p = findPath(t, this._root);\n        if (p.length < 2)\n            return [];\n        const c = p[p.length - 2].children.map(c => c.value);\n        return c.filter(cc => cc !== t);\n    }\n    /**\n     * @internal\n     */\n    pathFromRoot(t) {\n        return findPath(t, this._root).map(s => s.value);\n    }\n}\n// DFS for the node matching the value\nfunction findNode(value, node) {\n    if (value === node.value)\n        return node;\n    for (const child of node.children) {\n        const node = findNode(value, child);\n        if (node)\n            return node;\n    }\n    return null;\n}\n// Return the path to the node with the given value using DFS\nfunction findPath(value, node) {\n    if (value === node.value)\n        return [node];\n    for (const child of node.children) {\n        const path = findPath(value, child);\n        if (path.length) {\n            path.unshift(node);\n            return path;\n        }\n    }\n    return [];\n}\nclass TreeNode {\n    constructor(value, children) {\n        this.value = value;\n        this.children = children;\n    }\n    toString() {\n        return `TreeNode(${this.value})`;\n    }\n}\n// Return the list of T indexed by outlet name\nfunction nodeChildrenAsMap(node) {\n    const map = {};\n    if (node) {\n        node.children.forEach(child => map[child.value.outlet] = child);\n    }\n    return map;\n}\n\n/**\n * Represents the state of the router as a tree of activated routes.\n *\n * @usageNotes\n *\n * Every node in the route tree is an `ActivatedRoute` instance\n * that knows about the \"consumed\" URL segments, the extracted parameters,\n * and the resolved data.\n * Use the `ActivatedRoute` properties to traverse the tree from any node.\n *\n * The following fragment shows how a component gets the root node\n * of the current state to establish its own route tree:\n *\n * ```\n * @Component({templateUrl:'template.html'})\n * class MyComponent {\n *   constructor(router: Router) {\n *     const state: RouterState = router.routerState;\n *     const root: ActivatedRoute = state.root;\n *     const child = root.firstChild;\n *     const id: Observable<string> = child.params.map(p => p.id);\n *     //...\n *   }\n * }\n * ```\n *\n * @see {@link ActivatedRoute}\n * @see [Getting route information](guide/router#getting-route-information)\n *\n * @publicApi\n */\nclass RouterState extends Tree {\n    /** @internal */\n    constructor(root, \n    /** The current snapshot of the router state */\n    snapshot) {\n        super(root);\n        this.snapshot = snapshot;\n        setRouterState(this, root);\n    }\n    toString() {\n        return this.snapshot.toString();\n    }\n}\nfunction createEmptyState(urlTree, rootComponent) {\n    const snapshot = createEmptyStateSnapshot(urlTree, rootComponent);\n    const emptyUrl = new BehaviorSubject([new UrlSegment('', {})]);\n    const emptyParams = new BehaviorSubject({});\n    const emptyData = new BehaviorSubject({});\n    const emptyQueryParams = new BehaviorSubject({});\n    const fragment = new BehaviorSubject('');\n    const activated = new ActivatedRoute(emptyUrl, emptyParams, emptyQueryParams, fragment, emptyData, PRIMARY_OUTLET, rootComponent, snapshot.root);\n    activated.snapshot = snapshot.root;\n    return new RouterState(new TreeNode(activated, []), snapshot);\n}\nfunction createEmptyStateSnapshot(urlTree, rootComponent) {\n    const emptyParams = {};\n    const emptyData = {};\n    const emptyQueryParams = {};\n    const fragment = '';\n    const activated = new ActivatedRouteSnapshot([], emptyParams, emptyQueryParams, fragment, emptyData, PRIMARY_OUTLET, rootComponent, null, {});\n    return new RouterStateSnapshot('', new TreeNode(activated, []));\n}\n/**\n * Provides access to information about a route associated with a component\n * that is loaded in an outlet.\n * Use to traverse the `RouterState` tree and extract information from nodes.\n *\n * The following example shows how to construct a component using information from a\n * currently activated route.\n *\n * Note: the observables in this class only emit when the current and previous values differ based\n * on shallow equality. For example, changing deeply nested properties in resolved `data` will not\n * cause the `ActivatedRoute.data` `Observable` to emit a new value.\n *\n * {@example router/activated-route/module.ts region=\"activated-route\"\n *     header=\"activated-route.component.ts\"}\n *\n * @see [Getting route information](guide/router#getting-route-information)\n *\n * @publicApi\n */\nclass ActivatedRoute {\n    /** @internal */\n    constructor(\n    /** @internal */\n    urlSubject, \n    /** @internal */\n    paramsSubject, \n    /** @internal */\n    queryParamsSubject, \n    /** @internal */\n    fragmentSubject, \n    /** @internal */\n    dataSubject, \n    /** The outlet name of the route, a constant. */\n    outlet, \n    /** The component of the route, a constant. */\n    component, futureSnapshot) {\n        this.urlSubject = urlSubject;\n        this.paramsSubject = paramsSubject;\n        this.queryParamsSubject = queryParamsSubject;\n        this.fragmentSubject = fragmentSubject;\n        this.dataSubject = dataSubject;\n        this.outlet = outlet;\n        this.component = component;\n        this._futureSnapshot = futureSnapshot;\n        this.title = this.dataSubject?.pipe(map((d) => d[RouteTitleKey])) ?? of(undefined);\n        // TODO(atscott): Verify that these can be changed to `.asObservable()` with TGP.\n        this.url = urlSubject;\n        this.params = paramsSubject;\n        this.queryParams = queryParamsSubject;\n        this.fragment = fragmentSubject;\n        this.data = dataSubject;\n    }\n    /** The configuration used to match this route. */\n    get routeConfig() {\n        return this._futureSnapshot.routeConfig;\n    }\n    /** The root of the router state. */\n    get root() {\n        return this._routerState.root;\n    }\n    /** The parent of this route in the router state tree. */\n    get parent() {\n        return this._routerState.parent(this);\n    }\n    /** The first child of this route in the router state tree. */\n    get firstChild() {\n        return this._routerState.firstChild(this);\n    }\n    /** The children of this route in the router state tree. */\n    get children() {\n        return this._routerState.children(this);\n    }\n    /** The path from the root of the router state tree to this route. */\n    get pathFromRoot() {\n        return this._routerState.pathFromRoot(this);\n    }\n    /**\n     * An Observable that contains a map of the required and optional parameters\n     * specific to the route.\n     * The map supports retrieving single and multiple values from the same parameter.\n     */\n    get paramMap() {\n        if (!this._paramMap) {\n            this._paramMap = this.params.pipe(map((p) => convertToParamMap(p)));\n        }\n        return this._paramMap;\n    }\n    /**\n     * An Observable that contains a map of the query parameters available to all routes.\n     * The map supports retrieving single and multiple values from the query parameter.\n     */\n    get queryParamMap() {\n        if (!this._queryParamMap) {\n            this._queryParamMap =\n                this.queryParams.pipe(map((p) => convertToParamMap(p)));\n        }\n        return this._queryParamMap;\n    }\n    toString() {\n        return this.snapshot ? this.snapshot.toString() : `Future(${this._futureSnapshot})`;\n    }\n}\n/**\n * Returns the inherited params, data, and resolve for a given route.\n * By default, this only inherits values up to the nearest path-less or component-less route.\n * @internal\n */\nfunction inheritedParamsDataResolve(route, paramsInheritanceStrategy = 'emptyOnly') {\n    const pathFromRoot = route.pathFromRoot;\n    let inheritingStartingFrom = 0;\n    if (paramsInheritanceStrategy !== 'always') {\n        inheritingStartingFrom = pathFromRoot.length - 1;\n        while (inheritingStartingFrom >= 1) {\n            const current = pathFromRoot[inheritingStartingFrom];\n            const parent = pathFromRoot[inheritingStartingFrom - 1];\n            // current route is an empty path => inherits its parent's params and data\n            if (current.routeConfig && current.routeConfig.path === '') {\n                inheritingStartingFrom--;\n                // parent is componentless => current route should inherit its params and data\n            }\n            else if (!parent.component) {\n                inheritingStartingFrom--;\n            }\n            else {\n                break;\n            }\n        }\n    }\n    return flattenInherited(pathFromRoot.slice(inheritingStartingFrom));\n}\n/** @internal */\nfunction flattenInherited(pathFromRoot) {\n    return pathFromRoot.reduce((res, curr) => {\n        const params = { ...res.params, ...curr.params };\n        const data = { ...res.data, ...curr.data };\n        const resolve = { ...curr.data, ...res.resolve, ...curr.routeConfig?.data, ...curr._resolvedData };\n        return { params, data, resolve };\n    }, { params: {}, data: {}, resolve: {} });\n}\n/**\n * @description\n *\n * Contains the information about a route associated with a component loaded in an\n * outlet at a particular moment in time. ActivatedRouteSnapshot can also be used to\n * traverse the router state tree.\n *\n * The following example initializes a component with route information extracted\n * from the snapshot of the root node at the time of creation.\n *\n * ```\n * @Component({templateUrl:'./my-component.html'})\n * class MyComponent {\n *   constructor(route: ActivatedRoute) {\n *     const id: string = route.snapshot.params.id;\n *     const url: string = route.snapshot.url.join('');\n *     const user = route.snapshot.data.user;\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nclass ActivatedRouteSnapshot {\n    /** The resolved route title */\n    get title() {\n        // Note: This _must_ be a getter because the data is mutated in the resolvers. Title will not be\n        // available at the time of class instantiation.\n        return this.data?.[RouteTitleKey];\n    }\n    /** @internal */\n    constructor(\n    /** The URL segments matched by this route */\n    url, \n    /**\n     *  The matrix parameters scoped to this route.\n     *\n     *  You can compute all params (or data) in the router state or to get params outside\n     *  of an activated component by traversing the `RouterState` tree as in the following\n     *  example:\n     *  ```\n     *  collectRouteParams(router: Router) {\n     *    let params = {};\n     *    let stack: ActivatedRouteSnapshot[] = [router.routerState.snapshot.root];\n     *    while (stack.length > 0) {\n     *      const route = stack.pop()!;\n     *      params = {...params, ...route.params};\n     *      stack.push(...route.children);\n     *    }\n     *    return params;\n     *  }\n     *  ```\n     */\n    params, \n    /** The query parameters shared by all the routes */\n    queryParams, \n    /** The URL fragment shared by all the routes */\n    fragment, \n    /** The static and resolved data of this route */\n    data, \n    /** The outlet name of the route */\n    outlet, \n    /** The component of the route */\n    component, routeConfig, resolve) {\n        this.url = url;\n        this.params = params;\n        this.queryParams = queryParams;\n        this.fragment = fragment;\n        this.data = data;\n        this.outlet = outlet;\n        this.component = component;\n        this.routeConfig = routeConfig;\n        this._resolve = resolve;\n    }\n    /** The root of the router state */\n    get root() {\n        return this._routerState.root;\n    }\n    /** The parent of this route in the router state tree */\n    get parent() {\n        return this._routerState.parent(this);\n    }\n    /** The first child of this route in the router state tree */\n    get firstChild() {\n        return this._routerState.firstChild(this);\n    }\n    /** The children of this route in the router state tree */\n    get children() {\n        return this._routerState.children(this);\n    }\n    /** The path from the root of the router state tree to this route */\n    get pathFromRoot() {\n        return this._routerState.pathFromRoot(this);\n    }\n    get paramMap() {\n        if (!this._paramMap) {\n            this._paramMap = convertToParamMap(this.params);\n        }\n        return this._paramMap;\n    }\n    get queryParamMap() {\n        if (!this._queryParamMap) {\n            this._queryParamMap = convertToParamMap(this.queryParams);\n        }\n        return this._queryParamMap;\n    }\n    toString() {\n        const url = this.url.map(segment => segment.toString()).join('/');\n        const matched = this.routeConfig ? this.routeConfig.path : '';\n        return `Route(url:'${url}', path:'${matched}')`;\n    }\n}\n/**\n * @description\n *\n * Represents the state of the router at a moment in time.\n *\n * This is a tree of activated route snapshots. Every node in this tree knows about\n * the \"consumed\" URL segments, the extracted parameters, and the resolved data.\n *\n * The following example shows how a component is initialized with information\n * from the snapshot of the root node's state at the time of creation.\n *\n * ```\n * @Component({templateUrl:'template.html'})\n * class MyComponent {\n *   constructor(router: Router) {\n *     const state: RouterState = router.routerState;\n *     const snapshot: RouterStateSnapshot = state.snapshot;\n *     const root: ActivatedRouteSnapshot = snapshot.root;\n *     const child = root.firstChild;\n *     const id: Observable<string> = child.params.map(p => p.id);\n *     //...\n *   }\n * }\n * ```\n *\n * @publicApi\n */\nclass RouterStateSnapshot extends Tree {\n    /** @internal */\n    constructor(\n    /** The url from which this snapshot was created */\n    url, root) {\n        super(root);\n        this.url = url;\n        setRouterState(this, root);\n    }\n    toString() {\n        return serializeNode(this._root);\n    }\n}\nfunction setRouterState(state, node) {\n    node.value._routerState = state;\n    node.children.forEach(c => setRouterState(state, c));\n}\nfunction serializeNode(node) {\n    const c = node.children.length > 0 ? ` { ${node.children.map(serializeNode).join(', ')} } ` : '';\n    return `${node.value}${c}`;\n}\n/**\n * The expectation is that the activate route is created with the right set of parameters.\n * So we push new values into the observables only when they are not the initial values.\n * And we detect that by checking if the snapshot field is set.\n */\nfunction advanceActivatedRoute(route) {\n    if (route.snapshot) {\n        const currentSnapshot = route.snapshot;\n        const nextSnapshot = route._futureSnapshot;\n        route.snapshot = nextSnapshot;\n        if (!shallowEqual(currentSnapshot.queryParams, nextSnapshot.queryParams)) {\n            route.queryParamsSubject.next(nextSnapshot.queryParams);\n        }\n        if (currentSnapshot.fragment !== nextSnapshot.fragment) {\n            route.fragmentSubject.next(nextSnapshot.fragment);\n        }\n        if (!shallowEqual(currentSnapshot.params, nextSnapshot.params)) {\n            route.paramsSubject.next(nextSnapshot.params);\n        }\n        if (!shallowEqualArrays(currentSnapshot.url, nextSnapshot.url)) {\n            route.urlSubject.next(nextSnapshot.url);\n        }\n        if (!shallowEqual(currentSnapshot.data, nextSnapshot.data)) {\n            route.dataSubject.next(nextSnapshot.data);\n        }\n    }\n    else {\n        route.snapshot = route._futureSnapshot;\n        // this is for resolved data\n        route.dataSubject.next(route._futureSnapshot.data);\n    }\n}\nfunction equalParamsAndUrlSegments(a, b) {\n    const equalUrlParams = shallowEqual(a.params, b.params) && equalSegments(a.url, b.url);\n    const parentsMismatch = !a.parent !== !b.parent;\n    return equalUrlParams && !parentsMismatch &&\n        (!a.parent || equalParamsAndUrlSegments(a.parent, b.parent));\n}\n\n/**\n * @description\n *\n * Acts as a placeholder that Angular dynamically fills based on the current router state.\n *\n * Each outlet can have a unique name, determined by the optional `name` attribute.\n * The name cannot be set or changed dynamically. If not set, default value is \"primary\".\n *\n * ```\n * <router-outlet></router-outlet>\n * <router-outlet name='left'></router-outlet>\n * <router-outlet name='right'></router-outlet>\n * ```\n *\n * Named outlets can be the targets of secondary routes.\n * The `Route` object for a secondary route has an `outlet` property to identify the target outlet:\n *\n * `{path: <base-path>, component: <component>, outlet: <target_outlet_name>}`\n *\n * Using named outlets and secondary routes, you can target multiple outlets in\n * the same `RouterLink` directive.\n *\n * The router keeps track of separate branches in a navigation tree for each named outlet and\n * generates a representation of that tree in the URL.\n * The URL for a secondary route uses the following syntax to specify both the primary and secondary\n * routes at the same time:\n *\n * `http://base-path/primary-route-path(outlet-name:route-path)`\n *\n * A router outlet emits an activate event when a new component is instantiated,\n * deactivate event when a component is destroyed.\n * An attached event emits when the `RouteReuseStrategy` instructs the outlet to reattach the\n * subtree, and the detached event emits when the `RouteReuseStrategy` instructs the outlet to\n * detach the subtree.\n *\n * ```\n * <router-outlet\n *   (activate)='onActivate($event)'\n *   (deactivate)='onDeactivate($event)'\n *   (attach)='onAttach($event)'\n *   (detach)='onDetach($event)'></router-outlet>\n * ```\n *\n * @see [Routing tutorial](guide/router-tutorial-toh#named-outlets \"Example of a named\n * outlet and secondary route configuration\").\n * @see {@link RouterLink}\n * @see {@link Route}\n * @ngModule RouterModule\n *\n * @publicApi\n */\nclass RouterOutlet {\n    constructor() {\n        this.activated = null;\n        this._activatedRoute = null;\n        /**\n         * The name of the outlet\n         *\n         * @see [named outlets](guide/router-tutorial-toh#displaying-multiple-routes-in-named-outlets)\n         */\n        this.name = PRIMARY_OUTLET;\n        this.activateEvents = new EventEmitter();\n        this.deactivateEvents = new EventEmitter();\n        /**\n         * Emits an attached component instance when the `RouteReuseStrategy` instructs to re-attach a\n         * previously detached subtree.\n         **/\n        this.attachEvents = new EventEmitter();\n        /**\n         * Emits a detached component instance when the `RouteReuseStrategy` instructs to detach the\n         * subtree.\n         */\n        this.detachEvents = new EventEmitter();\n        this.parentContexts = inject(ChildrenOutletContexts);\n        this.location = inject(ViewContainerRef);\n        this.changeDetector = inject(ChangeDetectorRef);\n        this.environmentInjector = inject(EnvironmentInjector);\n        this.inputBinder = inject(INPUT_BINDER, { optional: true });\n        /** @nodoc */\n        this.supportsBindingToComponentInputs = true;\n    }\n    /** @internal */\n    get activatedComponentRef() {\n        return this.activated;\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (changes['name']) {\n            const { firstChange, previousValue } = changes['name'];\n            if (firstChange) {\n                // The first change is handled by ngOnInit. Because ngOnChanges doesn't get called when no\n                // input is set at all, we need to centrally handle the first change there.\n                return;\n            }\n            // unregister with the old name\n            if (this.isTrackedInParentContexts(previousValue)) {\n                this.deactivate();\n                this.parentContexts.onChildOutletDestroyed(previousValue);\n            }\n            // register the new name\n            this.initializeOutletWithName();\n        }\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        // Ensure that the registered outlet is this one before removing it on the context.\n        if (this.isTrackedInParentContexts(this.name)) {\n            this.parentContexts.onChildOutletDestroyed(this.name);\n        }\n        this.inputBinder?.unsubscribeFromRouteData(this);\n    }\n    isTrackedInParentContexts(outletName) {\n        return this.parentContexts.getContext(outletName)?.outlet === this;\n    }\n    /** @nodoc */\n    ngOnInit() {\n        this.initializeOutletWithName();\n    }\n    initializeOutletWithName() {\n        this.parentContexts.onChildOutletCreated(this.name, this);\n        if (this.activated) {\n            return;\n        }\n        // If the outlet was not instantiated at the time the route got activated we need to populate\n        // the outlet when it is initialized (ie inside a NgIf)\n        const context = this.parentContexts.getContext(this.name);\n        if (context?.route) {\n            if (context.attachRef) {\n                // `attachRef` is populated when there is an existing component to mount\n                this.attach(context.attachRef, context.route);\n            }\n            else {\n                // otherwise the component defined in the configuration is created\n                this.activateWith(context.route, context.injector);\n            }\n        }\n    }\n    get isActivated() {\n        return !!this.activated;\n    }\n    /**\n     * @returns The currently activated component instance.\n     * @throws An error if the outlet is not activated.\n     */\n    get component() {\n        if (!this.activated)\n            throw new ɵRuntimeError(4012 /* RuntimeErrorCode.OUTLET_NOT_ACTIVATED */, (typeof ngDevMode === 'undefined' || ngDevMode) && 'Outlet is not activated');\n        return this.activated.instance;\n    }\n    get activatedRoute() {\n        if (!this.activated)\n            throw new ɵRuntimeError(4012 /* RuntimeErrorCode.OUTLET_NOT_ACTIVATED */, (typeof ngDevMode === 'undefined' || ngDevMode) && 'Outlet is not activated');\n        return this._activatedRoute;\n    }\n    get activatedRouteData() {\n        if (this._activatedRoute) {\n            return this._activatedRoute.snapshot.data;\n        }\n        return {};\n    }\n    /**\n     * Called when the `RouteReuseStrategy` instructs to detach the subtree\n     */\n    detach() {\n        if (!this.activated)\n            throw new ɵRuntimeError(4012 /* RuntimeErrorCode.OUTLET_NOT_ACTIVATED */, (typeof ngDevMode === 'undefined' || ngDevMode) && 'Outlet is not activated');\n        this.location.detach();\n        const cmp = this.activated;\n        this.activated = null;\n        this._activatedRoute = null;\n        this.detachEvents.emit(cmp.instance);\n        return cmp;\n    }\n    /**\n     * Called when the `RouteReuseStrategy` instructs to re-attach a previously detached subtree\n     */\n    attach(ref, activatedRoute) {\n        this.activated = ref;\n        this._activatedRoute = activatedRoute;\n        this.location.insert(ref.hostView);\n        this.inputBinder?.bindActivatedRouteToOutletComponent(this);\n        this.attachEvents.emit(ref.instance);\n    }\n    deactivate() {\n        if (this.activated) {\n            const c = this.component;\n            this.activated.destroy();\n            this.activated = null;\n            this._activatedRoute = null;\n            this.deactivateEvents.emit(c);\n        }\n    }\n    activateWith(activatedRoute, environmentInjector) {\n        if (this.isActivated) {\n            throw new ɵRuntimeError(4013 /* RuntimeErrorCode.OUTLET_ALREADY_ACTIVATED */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                'Cannot activate an already activated outlet');\n        }\n        this._activatedRoute = activatedRoute;\n        const location = this.location;\n        const snapshot = activatedRoute.snapshot;\n        const component = snapshot.component;\n        const childContexts = this.parentContexts.getOrCreateContext(this.name).children;\n        const injector = new OutletInjector(activatedRoute, childContexts, location.injector);\n        this.activated = location.createComponent(component, {\n            index: location.length,\n            injector,\n            environmentInjector: environmentInjector ?? this.environmentInjector\n        });\n        // Calling `markForCheck` to make sure we will run the change detection when the\n        // `RouterOutlet` is inside a `ChangeDetectionStrategy.OnPush` component.\n        this.changeDetector.markForCheck();\n        this.inputBinder?.bindActivatedRouteToOutletComponent(this);\n        this.activateEvents.emit(this.activated.instance);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterOutlet, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: RouterOutlet, isStandalone: true, selector: \"router-outlet\", inputs: { name: \"name\" }, outputs: { activateEvents: \"activate\", deactivateEvents: \"deactivate\", attachEvents: \"attach\", detachEvents: \"detach\" }, exportAs: [\"outlet\"], usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterOutlet, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: 'router-outlet',\n                    exportAs: 'outlet',\n                    standalone: true,\n                }]\n        }], propDecorators: { name: [{\n                type: Input\n            }], activateEvents: [{\n                type: Output,\n                args: ['activate']\n            }], deactivateEvents: [{\n                type: Output,\n                args: ['deactivate']\n            }], attachEvents: [{\n                type: Output,\n                args: ['attach']\n            }], detachEvents: [{\n                type: Output,\n                args: ['detach']\n            }] } });\nclass OutletInjector {\n    constructor(route, childContexts, parent) {\n        this.route = route;\n        this.childContexts = childContexts;\n        this.parent = parent;\n    }\n    get(token, notFoundValue) {\n        if (token === ActivatedRoute) {\n            return this.route;\n        }\n        if (token === ChildrenOutletContexts) {\n            return this.childContexts;\n        }\n        return this.parent.get(token, notFoundValue);\n    }\n}\nconst INPUT_BINDER = new InjectionToken('');\n/**\n * Injectable used as a tree-shakable provider for opting in to binding router data to component\n * inputs.\n *\n * The RouterOutlet registers itself with this service when an `ActivatedRoute` is attached or\n * activated. When this happens, the service subscribes to the `ActivatedRoute` observables (params,\n * queryParams, data) and sets the inputs of the component using `ComponentRef.setInput`.\n * Importantly, when an input does not have an item in the route data with a matching key, this\n * input is set to `undefined`. If it were not done this way, the previous information would be\n * retained if the data got removed from the route (i.e. if a query parameter is removed).\n *\n * The `RouterOutlet` should unregister itself when destroyed via `unsubscribeFromRouteData` so that\n * the subscriptions are cleaned up.\n */\nclass RoutedComponentInputBinder {\n    constructor() {\n        this.outletDataSubscriptions = new Map;\n    }\n    bindActivatedRouteToOutletComponent(outlet) {\n        this.unsubscribeFromRouteData(outlet);\n        this.subscribeToRouteData(outlet);\n    }\n    unsubscribeFromRouteData(outlet) {\n        this.outletDataSubscriptions.get(outlet)?.unsubscribe();\n        this.outletDataSubscriptions.delete(outlet);\n    }\n    subscribeToRouteData(outlet) {\n        const { activatedRoute } = outlet;\n        const dataSubscription = combineLatest([\n            activatedRoute.queryParams,\n            activatedRoute.params,\n            activatedRoute.data,\n        ])\n            .pipe(switchMap(([queryParams, params, data], index) => {\n            data = { ...queryParams, ...params, ...data };\n            // Get the first result from the data subscription synchronously so it's available to\n            // the component as soon as possible (and doesn't require a second change detection).\n            if (index === 0) {\n                return of(data);\n            }\n            // Promise.resolve is used to avoid synchronously writing the wrong data when\n            // two of the Observables in the `combineLatest` stream emit one after\n            // another.\n            return Promise.resolve(data);\n        }))\n            .subscribe(data => {\n            // Outlet may have been deactivated or changed names to be associated with a different\n            // route\n            if (!outlet.isActivated || !outlet.activatedComponentRef ||\n                outlet.activatedRoute !== activatedRoute || activatedRoute.component === null) {\n                this.unsubscribeFromRouteData(outlet);\n                return;\n            }\n            const mirror = reflectComponentType(activatedRoute.component);\n            if (!mirror) {\n                this.unsubscribeFromRouteData(outlet);\n                return;\n            }\n            for (const { templateName } of mirror.inputs) {\n                outlet.activatedComponentRef.setInput(templateName, data[templateName]);\n            }\n        });\n        this.outletDataSubscriptions.set(outlet, dataSubscription);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RoutedComponentInputBinder, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RoutedComponentInputBinder }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RoutedComponentInputBinder, decorators: [{\n            type: Injectable\n        }] });\n\nfunction createRouterState(routeReuseStrategy, curr, prevState) {\n    const root = createNode(routeReuseStrategy, curr._root, prevState ? prevState._root : undefined);\n    return new RouterState(root, curr);\n}\nfunction createNode(routeReuseStrategy, curr, prevState) {\n    // reuse an activated route that is currently displayed on the screen\n    if (prevState && routeReuseStrategy.shouldReuseRoute(curr.value, prevState.value.snapshot)) {\n        const value = prevState.value;\n        value._futureSnapshot = curr.value;\n        const children = createOrReuseChildren(routeReuseStrategy, curr, prevState);\n        return new TreeNode(value, children);\n    }\n    else {\n        if (routeReuseStrategy.shouldAttach(curr.value)) {\n            // retrieve an activated route that is used to be displayed, but is not currently displayed\n            const detachedRouteHandle = routeReuseStrategy.retrieve(curr.value);\n            if (detachedRouteHandle !== null) {\n                const tree = detachedRouteHandle.route;\n                tree.value._futureSnapshot = curr.value;\n                tree.children = curr.children.map(c => createNode(routeReuseStrategy, c));\n                return tree;\n            }\n        }\n        const value = createActivatedRoute(curr.value);\n        const children = curr.children.map(c => createNode(routeReuseStrategy, c));\n        return new TreeNode(value, children);\n    }\n}\nfunction createOrReuseChildren(routeReuseStrategy, curr, prevState) {\n    return curr.children.map(child => {\n        for (const p of prevState.children) {\n            if (routeReuseStrategy.shouldReuseRoute(child.value, p.value.snapshot)) {\n                return createNode(routeReuseStrategy, child, p);\n            }\n        }\n        return createNode(routeReuseStrategy, child);\n    });\n}\nfunction createActivatedRoute(c) {\n    return new ActivatedRoute(new BehaviorSubject(c.url), new BehaviorSubject(c.params), new BehaviorSubject(c.queryParams), new BehaviorSubject(c.fragment), new BehaviorSubject(c.data), c.outlet, c.component, c);\n}\n\nconst NAVIGATION_CANCELING_ERROR = 'ngNavigationCancelingError';\nfunction redirectingNavigationError(urlSerializer, redirect) {\n    const { redirectTo, navigationBehaviorOptions } = isUrlTree(redirect) ? { redirectTo: redirect, navigationBehaviorOptions: undefined } : redirect;\n    const error = navigationCancelingError(ngDevMode && `Redirecting to \"${urlSerializer.serialize(redirectTo)}\"`, 0 /* NavigationCancellationCode.Redirect */, redirect);\n    error.url = redirectTo;\n    error.navigationBehaviorOptions = navigationBehaviorOptions;\n    return error;\n}\nfunction navigationCancelingError(message, code, redirectUrl) {\n    const error = new Error('NavigationCancelingError: ' + (message || ''));\n    error[NAVIGATION_CANCELING_ERROR] = true;\n    error.cancellationCode = code;\n    if (redirectUrl) {\n        error.url = redirectUrl;\n    }\n    return error;\n}\nfunction isRedirectingNavigationCancelingError$1(error) {\n    return isNavigationCancelingError$1(error) && isUrlTree(error.url);\n}\nfunction isNavigationCancelingError$1(error) {\n    return error && error[NAVIGATION_CANCELING_ERROR];\n}\n\n/**\n * This component is used internally within the router to be a placeholder when an empty\n * router-outlet is needed. For example, with a config such as:\n *\n * `{path: 'parent', outlet: 'nav', children: [...]}`\n *\n * In order to render, there needs to be a component on this config, which will default\n * to this `EmptyOutletComponent`.\n */\nclass ɵEmptyOutletComponent {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵEmptyOutletComponent, deps: [], target: i0.ɵɵFactoryTarget.Component }); }\n    static { this.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: \"14.0.0\", version: \"16.2.12\", type: ɵEmptyOutletComponent, isStandalone: true, selector: \"ng-component\", ngImport: i0, template: `<router-outlet></router-outlet>`, isInline: true, dependencies: [{ kind: \"directive\", type: RouterOutlet, selector: \"router-outlet\", inputs: [\"name\"], outputs: [\"activate\", \"deactivate\", \"attach\", \"detach\"], exportAs: [\"outlet\"] }] }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ɵEmptyOutletComponent, decorators: [{\n            type: Component,\n            args: [{\n                    template: `<router-outlet></router-outlet>`,\n                    imports: [RouterOutlet],\n                    standalone: true,\n                }]\n        }] });\n\n/**\n * Creates an `EnvironmentInjector` if the `Route` has providers and one does not already exist\n * and returns the injector. Otherwise, if the `Route` does not have `providers`, returns the\n * `currentInjector`.\n *\n * @param route The route that might have providers\n * @param currentInjector The parent injector of the `Route`\n */\nfunction getOrCreateRouteInjectorIfNeeded(route, currentInjector) {\n    if (route.providers && !route._injector) {\n        route._injector =\n            createEnvironmentInjector(route.providers, currentInjector, `Route: ${route.path}`);\n    }\n    return route._injector ?? currentInjector;\n}\nfunction getLoadedRoutes(route) {\n    return route._loadedRoutes;\n}\nfunction getLoadedInjector(route) {\n    return route._loadedInjector;\n}\nfunction getLoadedComponent(route) {\n    return route._loadedComponent;\n}\nfunction getProvidersInjector(route) {\n    return route._injector;\n}\nfunction validateConfig(config, parentPath = '', requireStandaloneComponents = false) {\n    // forEach doesn't iterate undefined values\n    for (let i = 0; i < config.length; i++) {\n        const route = config[i];\n        const fullPath = getFullPath(parentPath, route);\n        validateNode(route, fullPath, requireStandaloneComponents);\n    }\n}\nfunction assertStandalone(fullPath, component) {\n    if (component && ɵisNgModule(component)) {\n        throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}'. You are using 'loadComponent' with a module, ` +\n            `but it must be used with standalone components. Use 'loadChildren' instead.`);\n    }\n    else if (component && !isStandalone(component)) {\n        throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}'. The component must be standalone.`);\n    }\n}\nfunction validateNode(route, fullPath, requireStandaloneComponents) {\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        if (!route) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `\n      Invalid configuration of route '${fullPath}': Encountered undefined route.\n      The reason might be an extra comma.\n\n      Example:\n      const routes: Routes = [\n        { path: '', redirectTo: '/dashboard', pathMatch: 'full' },\n        { path: 'dashboard',  component: DashboardComponent },, << two commas\n        { path: 'detail/:id', component: HeroDetailComponent }\n      ];\n    `);\n        }\n        if (Array.isArray(route)) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': Array cannot be specified`);\n        }\n        if (!route.redirectTo && !route.component && !route.loadComponent && !route.children &&\n            !route.loadChildren && (route.outlet && route.outlet !== PRIMARY_OUTLET)) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': a componentless route without children or loadChildren cannot have a named outlet set`);\n        }\n        if (route.redirectTo && route.children) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': redirectTo and children cannot be used together`);\n        }\n        if (route.redirectTo && route.loadChildren) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': redirectTo and loadChildren cannot be used together`);\n        }\n        if (route.children && route.loadChildren) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': children and loadChildren cannot be used together`);\n        }\n        if (route.redirectTo && (route.component || route.loadComponent)) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': redirectTo and component/loadComponent cannot be used together`);\n        }\n        if (route.component && route.loadComponent) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': component and loadComponent cannot be used together`);\n        }\n        if (route.redirectTo && route.canActivate) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': redirectTo and canActivate cannot be used together. Redirects happen before activation ` +\n                `so canActivate will never be executed.`);\n        }\n        if (route.path && route.matcher) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': path and matcher cannot be used together`);\n        }\n        if (route.redirectTo === void 0 && !route.component && !route.loadComponent &&\n            !route.children && !route.loadChildren) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}'. One of the following must be provided: component, loadComponent, redirectTo, children or loadChildren`);\n        }\n        if (route.path === void 0 && route.matcher === void 0) {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': routes must have either a path or a matcher specified`);\n        }\n        if (typeof route.path === 'string' && route.path.charAt(0) === '/') {\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '${fullPath}': path cannot start with a slash`);\n        }\n        if (route.path === '' && route.redirectTo !== void 0 && route.pathMatch === void 0) {\n            const exp = `The default value of 'pathMatch' is 'prefix', but often the intent is to use 'full'.`;\n            throw new ɵRuntimeError(4014 /* RuntimeErrorCode.INVALID_ROUTE_CONFIG */, `Invalid configuration of route '{path: \"${fullPath}\", redirectTo: \"${route.redirectTo}\"}': please provide 'pathMatch'. ${exp}`);\n        }\n        if (requireStandaloneComponents) {\n            assertStandalone(fullPath, route.component);\n        }\n    }\n    if (route.children) {\n        validateConfig(route.children, fullPath, requireStandaloneComponents);\n    }\n}\nfunction getFullPath(parentPath, currentRoute) {\n    if (!currentRoute) {\n        return parentPath;\n    }\n    if (!parentPath && !currentRoute.path) {\n        return '';\n    }\n    else if (parentPath && !currentRoute.path) {\n        return `${parentPath}/`;\n    }\n    else if (!parentPath && currentRoute.path) {\n        return currentRoute.path;\n    }\n    else {\n        return `${parentPath}/${currentRoute.path}`;\n    }\n}\n/**\n * Makes a copy of the config and adds any default required properties.\n */\nfunction standardizeConfig(r) {\n    const children = r.children && r.children.map(standardizeConfig);\n    const c = children ? { ...r, children } : { ...r };\n    if ((!c.component && !c.loadComponent) && (children || c.loadChildren) &&\n        (c.outlet && c.outlet !== PRIMARY_OUTLET)) {\n        c.component = ɵEmptyOutletComponent;\n    }\n    return c;\n}\n/** Returns the `route.outlet` or PRIMARY_OUTLET if none exists. */\nfunction getOutlet(route) {\n    return route.outlet || PRIMARY_OUTLET;\n}\n/**\n * Sorts the `routes` such that the ones with an outlet matching `outletName` come first.\n * The order of the configs is otherwise preserved.\n */\nfunction sortByMatchingOutlets(routes, outletName) {\n    const sortedConfig = routes.filter(r => getOutlet(r) === outletName);\n    sortedConfig.push(...routes.filter(r => getOutlet(r) !== outletName));\n    return sortedConfig;\n}\n/**\n * Gets the first injector in the snapshot's parent tree.\n *\n * If the `Route` has a static list of providers, the returned injector will be the one created from\n * those. If it does not exist, the returned injector may come from the parents, which may be from a\n * loaded config or their static providers.\n *\n * Returns `null` if there is neither this nor any parents have a stored injector.\n *\n * Generally used for retrieving the injector to use for getting tokens for guards/resolvers and\n * also used for getting the correct injector to use for creating components.\n */\nfunction getClosestRouteInjector(snapshot) {\n    if (!snapshot)\n        return null;\n    // If the current route has its own injector, which is created from the static providers on the\n    // route itself, we should use that. Otherwise, we start at the parent since we do not want to\n    // include the lazy loaded injector from this route.\n    if (snapshot.routeConfig?._injector) {\n        return snapshot.routeConfig._injector;\n    }\n    for (let s = snapshot.parent; s; s = s.parent) {\n        const route = s.routeConfig;\n        // Note that the order here is important. `_loadedInjector` stored on the route with\n        // `loadChildren: () => NgModule` so it applies to child routes with priority. The `_injector`\n        // is created from the static providers on that parent route, so it applies to the children as\n        // well, but only if there is no lazy loaded NgModuleRef injector.\n        if (route?._loadedInjector)\n            return route._loadedInjector;\n        if (route?._injector)\n            return route._injector;\n    }\n    return null;\n}\n\nlet warnedAboutUnsupportedInputBinding = false;\nconst activateRoutes = (rootContexts, routeReuseStrategy, forwardEvent, inputBindingEnabled) => map(t => {\n    new ActivateRoutes(routeReuseStrategy, t.targetRouterState, t.currentRouterState, forwardEvent, inputBindingEnabled)\n        .activate(rootContexts);\n    return t;\n});\nclass ActivateRoutes {\n    constructor(routeReuseStrategy, futureState, currState, forwardEvent, inputBindingEnabled) {\n        this.routeReuseStrategy = routeReuseStrategy;\n        this.futureState = futureState;\n        this.currState = currState;\n        this.forwardEvent = forwardEvent;\n        this.inputBindingEnabled = inputBindingEnabled;\n    }\n    activate(parentContexts) {\n        const futureRoot = this.futureState._root;\n        const currRoot = this.currState ? this.currState._root : null;\n        this.deactivateChildRoutes(futureRoot, currRoot, parentContexts);\n        advanceActivatedRoute(this.futureState.root);\n        this.activateChildRoutes(futureRoot, currRoot, parentContexts);\n    }\n    // De-activate the child route that are not re-used for the future state\n    deactivateChildRoutes(futureNode, currNode, contexts) {\n        const children = nodeChildrenAsMap(currNode);\n        // Recurse on the routes active in the future state to de-activate deeper children\n        futureNode.children.forEach(futureChild => {\n            const childOutletName = futureChild.value.outlet;\n            this.deactivateRoutes(futureChild, children[childOutletName], contexts);\n            delete children[childOutletName];\n        });\n        // De-activate the routes that will not be re-used\n        Object.values(children).forEach((v) => {\n            this.deactivateRouteAndItsChildren(v, contexts);\n        });\n    }\n    deactivateRoutes(futureNode, currNode, parentContext) {\n        const future = futureNode.value;\n        const curr = currNode ? currNode.value : null;\n        if (future === curr) {\n            // Reusing the node, check to see if the children need to be de-activated\n            if (future.component) {\n                // If we have a normal route, we need to go through an outlet.\n                const context = parentContext.getContext(future.outlet);\n                if (context) {\n                    this.deactivateChildRoutes(futureNode, currNode, context.children);\n                }\n            }\n            else {\n                // if we have a componentless route, we recurse but keep the same outlet map.\n                this.deactivateChildRoutes(futureNode, currNode, parentContext);\n            }\n        }\n        else {\n            if (curr) {\n                // Deactivate the current route which will not be re-used\n                this.deactivateRouteAndItsChildren(currNode, parentContext);\n            }\n        }\n    }\n    deactivateRouteAndItsChildren(route, parentContexts) {\n        // If there is no component, the Route is never attached to an outlet (because there is no\n        // component to attach).\n        if (route.value.component && this.routeReuseStrategy.shouldDetach(route.value.snapshot)) {\n            this.detachAndStoreRouteSubtree(route, parentContexts);\n        }\n        else {\n            this.deactivateRouteAndOutlet(route, parentContexts);\n        }\n    }\n    detachAndStoreRouteSubtree(route, parentContexts) {\n        const context = parentContexts.getContext(route.value.outlet);\n        const contexts = context && route.value.component ? context.children : parentContexts;\n        const children = nodeChildrenAsMap(route);\n        for (const childOutlet of Object.keys(children)) {\n            this.deactivateRouteAndItsChildren(children[childOutlet], contexts);\n        }\n        if (context && context.outlet) {\n            const componentRef = context.outlet.detach();\n            const contexts = context.children.onOutletDeactivated();\n            this.routeReuseStrategy.store(route.value.snapshot, { componentRef, route, contexts });\n        }\n    }\n    deactivateRouteAndOutlet(route, parentContexts) {\n        const context = parentContexts.getContext(route.value.outlet);\n        // The context could be `null` if we are on a componentless route but there may still be\n        // children that need deactivating.\n        const contexts = context && route.value.component ? context.children : parentContexts;\n        const children = nodeChildrenAsMap(route);\n        for (const childOutlet of Object.keys(children)) {\n            this.deactivateRouteAndItsChildren(children[childOutlet], contexts);\n        }\n        if (context) {\n            if (context.outlet) {\n                // Destroy the component\n                context.outlet.deactivate();\n                // Destroy the contexts for all the outlets that were in the component\n                context.children.onOutletDeactivated();\n            }\n            // Clear the information about the attached component on the context but keep the reference to\n            // the outlet. Clear even if outlet was not yet activated to avoid activating later with old\n            // info\n            context.attachRef = null;\n            context.route = null;\n        }\n    }\n    activateChildRoutes(futureNode, currNode, contexts) {\n        const children = nodeChildrenAsMap(currNode);\n        futureNode.children.forEach(c => {\n            this.activateRoutes(c, children[c.value.outlet], contexts);\n            this.forwardEvent(new ActivationEnd(c.value.snapshot));\n        });\n        if (futureNode.children.length) {\n            this.forwardEvent(new ChildActivationEnd(futureNode.value.snapshot));\n        }\n    }\n    activateRoutes(futureNode, currNode, parentContexts) {\n        const future = futureNode.value;\n        const curr = currNode ? currNode.value : null;\n        advanceActivatedRoute(future);\n        // reusing the node\n        if (future === curr) {\n            if (future.component) {\n                // If we have a normal route, we need to go through an outlet.\n                const context = parentContexts.getOrCreateContext(future.outlet);\n                this.activateChildRoutes(futureNode, currNode, context.children);\n            }\n            else {\n                // if we have a componentless route, we recurse but keep the same outlet map.\n                this.activateChildRoutes(futureNode, currNode, parentContexts);\n            }\n        }\n        else {\n            if (future.component) {\n                // if we have a normal route, we need to place the component into the outlet and recurse.\n                const context = parentContexts.getOrCreateContext(future.outlet);\n                if (this.routeReuseStrategy.shouldAttach(future.snapshot)) {\n                    const stored = this.routeReuseStrategy.retrieve(future.snapshot);\n                    this.routeReuseStrategy.store(future.snapshot, null);\n                    context.children.onOutletReAttached(stored.contexts);\n                    context.attachRef = stored.componentRef;\n                    context.route = stored.route.value;\n                    if (context.outlet) {\n                        // Attach right away when the outlet has already been instantiated\n                        // Otherwise attach from `RouterOutlet.ngOnInit` when it is instantiated\n                        context.outlet.attach(stored.componentRef, stored.route.value);\n                    }\n                    advanceActivatedRoute(stored.route.value);\n                    this.activateChildRoutes(futureNode, null, context.children);\n                }\n                else {\n                    const injector = getClosestRouteInjector(future.snapshot);\n                    context.attachRef = null;\n                    context.route = future;\n                    context.injector = injector;\n                    if (context.outlet) {\n                        // Activate the outlet when it has already been instantiated\n                        // Otherwise it will get activated from its `ngOnInit` when instantiated\n                        context.outlet.activateWith(future, context.injector);\n                    }\n                    this.activateChildRoutes(futureNode, null, context.children);\n                }\n            }\n            else {\n                // if we have a componentless route, we recurse but keep the same outlet map.\n                this.activateChildRoutes(futureNode, null, parentContexts);\n            }\n        }\n        if ((typeof ngDevMode === 'undefined' || ngDevMode)) {\n            const context = parentContexts.getOrCreateContext(future.outlet);\n            const outlet = context.outlet;\n            if (outlet && this.inputBindingEnabled && !outlet.supportsBindingToComponentInputs &&\n                !warnedAboutUnsupportedInputBinding) {\n                console.warn(`'withComponentInputBinding' feature is enabled but ` +\n                    `this application is using an outlet that may not support binding to component inputs.`);\n                warnedAboutUnsupportedInputBinding = true;\n            }\n        }\n    }\n}\n\nclass CanActivate {\n    constructor(path) {\n        this.path = path;\n        this.route = this.path[this.path.length - 1];\n    }\n}\nclass CanDeactivate {\n    constructor(component, route) {\n        this.component = component;\n        this.route = route;\n    }\n}\nfunction getAllRouteGuards(future, curr, parentContexts) {\n    const futureRoot = future._root;\n    const currRoot = curr ? curr._root : null;\n    return getChildRouteGuards(futureRoot, currRoot, parentContexts, [futureRoot.value]);\n}\nfunction getCanActivateChild(p) {\n    const canActivateChild = p.routeConfig ? p.routeConfig.canActivateChild : null;\n    if (!canActivateChild || canActivateChild.length === 0)\n        return null;\n    return { node: p, guards: canActivateChild };\n}\nfunction getTokenOrFunctionIdentity(tokenOrFunction, injector) {\n    const NOT_FOUND = Symbol();\n    const result = injector.get(tokenOrFunction, NOT_FOUND);\n    if (result === NOT_FOUND) {\n        if (typeof tokenOrFunction === 'function' && !ɵisInjectable(tokenOrFunction)) {\n            // We think the token is just a function so return it as-is\n            return tokenOrFunction;\n        }\n        else {\n            // This will throw the not found error\n            return injector.get(tokenOrFunction);\n        }\n    }\n    return result;\n}\nfunction getChildRouteGuards(futureNode, currNode, contexts, futurePath, checks = {\n    canDeactivateChecks: [],\n    canActivateChecks: []\n}) {\n    const prevChildren = nodeChildrenAsMap(currNode);\n    // Process the children of the future route\n    futureNode.children.forEach(c => {\n        getRouteGuards(c, prevChildren[c.value.outlet], contexts, futurePath.concat([c.value]), checks);\n        delete prevChildren[c.value.outlet];\n    });\n    // Process any children left from the current route (not active for the future route)\n    Object.entries(prevChildren)\n        .forEach(([k, v]) => deactivateRouteAndItsChildren(v, contexts.getContext(k), checks));\n    return checks;\n}\nfunction getRouteGuards(futureNode, currNode, parentContexts, futurePath, checks = {\n    canDeactivateChecks: [],\n    canActivateChecks: []\n}) {\n    const future = futureNode.value;\n    const curr = currNode ? currNode.value : null;\n    const context = parentContexts ? parentContexts.getContext(futureNode.value.outlet) : null;\n    // reusing the node\n    if (curr && future.routeConfig === curr.routeConfig) {\n        const shouldRun = shouldRunGuardsAndResolvers(curr, future, future.routeConfig.runGuardsAndResolvers);\n        if (shouldRun) {\n            checks.canActivateChecks.push(new CanActivate(futurePath));\n        }\n        else {\n            // we need to set the data\n            future.data = curr.data;\n            future._resolvedData = curr._resolvedData;\n        }\n        // If we have a component, we need to go through an outlet.\n        if (future.component) {\n            getChildRouteGuards(futureNode, currNode, context ? context.children : null, futurePath, checks);\n            // if we have a componentless route, we recurse but keep the same outlet map.\n        }\n        else {\n            getChildRouteGuards(futureNode, currNode, parentContexts, futurePath, checks);\n        }\n        if (shouldRun && context && context.outlet && context.outlet.isActivated) {\n            checks.canDeactivateChecks.push(new CanDeactivate(context.outlet.component, curr));\n        }\n    }\n    else {\n        if (curr) {\n            deactivateRouteAndItsChildren(currNode, context, checks);\n        }\n        checks.canActivateChecks.push(new CanActivate(futurePath));\n        // If we have a component, we need to go through an outlet.\n        if (future.component) {\n            getChildRouteGuards(futureNode, null, context ? context.children : null, futurePath, checks);\n            // if we have a componentless route, we recurse but keep the same outlet map.\n        }\n        else {\n            getChildRouteGuards(futureNode, null, parentContexts, futurePath, checks);\n        }\n    }\n    return checks;\n}\nfunction shouldRunGuardsAndResolvers(curr, future, mode) {\n    if (typeof mode === 'function') {\n        return mode(curr, future);\n    }\n    switch (mode) {\n        case 'pathParamsChange':\n            return !equalPath(curr.url, future.url);\n        case 'pathParamsOrQueryParamsChange':\n            return !equalPath(curr.url, future.url) ||\n                !shallowEqual(curr.queryParams, future.queryParams);\n        case 'always':\n            return true;\n        case 'paramsOrQueryParamsChange':\n            return !equalParamsAndUrlSegments(curr, future) ||\n                !shallowEqual(curr.queryParams, future.queryParams);\n        case 'paramsChange':\n        default:\n            return !equalParamsAndUrlSegments(curr, future);\n    }\n}\nfunction deactivateRouteAndItsChildren(route, context, checks) {\n    const children = nodeChildrenAsMap(route);\n    const r = route.value;\n    Object.entries(children).forEach(([childName, node]) => {\n        if (!r.component) {\n            deactivateRouteAndItsChildren(node, context, checks);\n        }\n        else if (context) {\n            deactivateRouteAndItsChildren(node, context.children.getContext(childName), checks);\n        }\n        else {\n            deactivateRouteAndItsChildren(node, null, checks);\n        }\n    });\n    if (!r.component) {\n        checks.canDeactivateChecks.push(new CanDeactivate(null, r));\n    }\n    else if (context && context.outlet && context.outlet.isActivated) {\n        checks.canDeactivateChecks.push(new CanDeactivate(context.outlet.component, r));\n    }\n    else {\n        checks.canDeactivateChecks.push(new CanDeactivate(null, r));\n    }\n}\n\n/**\n * Simple function check, but generic so type inference will flow. Example:\n *\n * function product(a: number, b: number) {\n *   return a * b;\n * }\n *\n * if (isFunction<product>(fn)) {\n *   return fn(1, 2);\n * } else {\n *   throw \"Must provide the `product` function\";\n * }\n */\nfunction isFunction(v) {\n    return typeof v === 'function';\n}\nfunction isBoolean(v) {\n    return typeof v === 'boolean';\n}\nfunction isCanLoad(guard) {\n    return guard && isFunction(guard.canLoad);\n}\nfunction isCanActivate(guard) {\n    return guard && isFunction(guard.canActivate);\n}\nfunction isCanActivateChild(guard) {\n    return guard && isFunction(guard.canActivateChild);\n}\nfunction isCanDeactivate(guard) {\n    return guard && isFunction(guard.canDeactivate);\n}\nfunction isCanMatch(guard) {\n    return guard && isFunction(guard.canMatch);\n}\nfunction isRedirectingNavigationCancelingError(error) {\n    return isNavigationCancelingError(error) && isUrlTree(error.url);\n}\nfunction isNavigationCancelingError(error) {\n    return error && error[NAVIGATION_CANCELING_ERROR];\n}\nfunction isEmptyError(e) {\n    return e instanceof EmptyError || e?.name === 'EmptyError';\n}\n\nconst INITIAL_VALUE = /* @__PURE__ */ Symbol('INITIAL_VALUE');\nfunction prioritizedGuardValue() {\n    return switchMap(obs => {\n        return combineLatest(obs.map(o => o.pipe(take(1), startWith(INITIAL_VALUE))))\n            .pipe(map((results) => {\n            for (const result of results) {\n                if (result === true) {\n                    // If result is true, check the next one\n                    continue;\n                }\n                else if (result === INITIAL_VALUE) {\n                    // If guard has not finished, we need to stop processing.\n                    return INITIAL_VALUE;\n                }\n                else if (result === false || result instanceof UrlTree) {\n                    // Result finished and was not true. Return the result.\n                    // Note that we only allow false/UrlTree. Other values are considered invalid and\n                    // ignored.\n                    return result;\n                }\n            }\n            // Everything resolved to true. Return true.\n            return true;\n        }), filter((item) => item !== INITIAL_VALUE), take(1));\n    });\n}\n\nfunction checkGuards(injector, forwardEvent) {\n    return mergeMap(t => {\n        const { targetSnapshot, currentSnapshot, guards: { canActivateChecks, canDeactivateChecks } } = t;\n        if (canDeactivateChecks.length === 0 && canActivateChecks.length === 0) {\n            return of({ ...t, guardsResult: true });\n        }\n        return runCanDeactivateChecks(canDeactivateChecks, targetSnapshot, currentSnapshot, injector)\n            .pipe(mergeMap(canDeactivate => {\n            return canDeactivate && isBoolean(canDeactivate) ?\n                runCanActivateChecks(targetSnapshot, canActivateChecks, injector, forwardEvent) :\n                of(canDeactivate);\n        }), map(guardsResult => ({ ...t, guardsResult })));\n    });\n}\nfunction runCanDeactivateChecks(checks, futureRSS, currRSS, injector) {\n    return from(checks).pipe(mergeMap(check => runCanDeactivate(check.component, check.route, currRSS, futureRSS, injector)), first(result => {\n        return result !== true;\n    }, true));\n}\nfunction runCanActivateChecks(futureSnapshot, checks, injector, forwardEvent) {\n    return from(checks).pipe(concatMap((check) => {\n        return concat(fireChildActivationStart(check.route.parent, forwardEvent), fireActivationStart(check.route, forwardEvent), runCanActivateChild(futureSnapshot, check.path, injector), runCanActivate(futureSnapshot, check.route, injector));\n    }), first(result => {\n        return result !== true;\n    }, true));\n}\n/**\n * This should fire off `ActivationStart` events for each route being activated at this\n * level.\n * In other words, if you're activating `a` and `b` below, `path` will contain the\n * `ActivatedRouteSnapshot`s for both and we will fire `ActivationStart` for both. Always\n * return\n * `true` so checks continue to run.\n */\nfunction fireActivationStart(snapshot, forwardEvent) {\n    if (snapshot !== null && forwardEvent) {\n        forwardEvent(new ActivationStart(snapshot));\n    }\n    return of(true);\n}\n/**\n * This should fire off `ChildActivationStart` events for each route being activated at this\n * level.\n * In other words, if you're activating `a` and `b` below, `path` will contain the\n * `ActivatedRouteSnapshot`s for both and we will fire `ChildActivationStart` for both. Always\n * return\n * `true` so checks continue to run.\n */\nfunction fireChildActivationStart(snapshot, forwardEvent) {\n    if (snapshot !== null && forwardEvent) {\n        forwardEvent(new ChildActivationStart(snapshot));\n    }\n    return of(true);\n}\nfunction runCanActivate(futureRSS, futureARS, injector) {\n    const canActivate = futureARS.routeConfig ? futureARS.routeConfig.canActivate : null;\n    if (!canActivate || canActivate.length === 0)\n        return of(true);\n    const canActivateObservables = canActivate.map((canActivate) => {\n        return defer(() => {\n            const closestInjector = getClosestRouteInjector(futureARS) ?? injector;\n            const guard = getTokenOrFunctionIdentity(canActivate, closestInjector);\n            const guardVal = isCanActivate(guard) ?\n                guard.canActivate(futureARS, futureRSS) :\n                closestInjector.runInContext(() => guard(futureARS, futureRSS));\n            return wrapIntoObservable(guardVal).pipe(first());\n        });\n    });\n    return of(canActivateObservables).pipe(prioritizedGuardValue());\n}\nfunction runCanActivateChild(futureRSS, path, injector) {\n    const futureARS = path[path.length - 1];\n    const canActivateChildGuards = path.slice(0, path.length - 1)\n        .reverse()\n        .map(p => getCanActivateChild(p))\n        .filter(_ => _ !== null);\n    const canActivateChildGuardsMapped = canActivateChildGuards.map((d) => {\n        return defer(() => {\n            const guardsMapped = d.guards.map((canActivateChild) => {\n                const closestInjector = getClosestRouteInjector(d.node) ?? injector;\n                const guard = getTokenOrFunctionIdentity(canActivateChild, closestInjector);\n                const guardVal = isCanActivateChild(guard) ?\n                    guard.canActivateChild(futureARS, futureRSS) :\n                    closestInjector.runInContext(() => guard(futureARS, futureRSS));\n                return wrapIntoObservable(guardVal).pipe(first());\n            });\n            return of(guardsMapped).pipe(prioritizedGuardValue());\n        });\n    });\n    return of(canActivateChildGuardsMapped).pipe(prioritizedGuardValue());\n}\nfunction runCanDeactivate(component, currARS, currRSS, futureRSS, injector) {\n    const canDeactivate = currARS && currARS.routeConfig ? currARS.routeConfig.canDeactivate : null;\n    if (!canDeactivate || canDeactivate.length === 0)\n        return of(true);\n    const canDeactivateObservables = canDeactivate.map((c) => {\n        const closestInjector = getClosestRouteInjector(currARS) ?? injector;\n        const guard = getTokenOrFunctionIdentity(c, closestInjector);\n        const guardVal = isCanDeactivate(guard) ?\n            guard.canDeactivate(component, currARS, currRSS, futureRSS) :\n            closestInjector.runInContext(() => guard(component, currARS, currRSS, futureRSS));\n        return wrapIntoObservable(guardVal).pipe(first());\n    });\n    return of(canDeactivateObservables).pipe(prioritizedGuardValue());\n}\nfunction runCanLoadGuards(injector, route, segments, urlSerializer) {\n    const canLoad = route.canLoad;\n    if (canLoad === undefined || canLoad.length === 0) {\n        return of(true);\n    }\n    const canLoadObservables = canLoad.map((injectionToken) => {\n        const guard = getTokenOrFunctionIdentity(injectionToken, injector);\n        const guardVal = isCanLoad(guard) ?\n            guard.canLoad(route, segments) :\n            injector.runInContext(() => guard(route, segments));\n        return wrapIntoObservable(guardVal);\n    });\n    return of(canLoadObservables)\n        .pipe(prioritizedGuardValue(), redirectIfUrlTree(urlSerializer));\n}\nfunction redirectIfUrlTree(urlSerializer) {\n    return pipe(tap((result) => {\n        if (!isUrlTree(result))\n            return;\n        throw redirectingNavigationError(urlSerializer, result);\n    }), map(result => result === true));\n}\nfunction runCanMatchGuards(injector, route, segments, urlSerializer) {\n    const canMatch = route.canMatch;\n    if (!canMatch || canMatch.length === 0)\n        return of(true);\n    const canMatchObservables = canMatch.map(injectionToken => {\n        const guard = getTokenOrFunctionIdentity(injectionToken, injector);\n        const guardVal = isCanMatch(guard) ?\n            guard.canMatch(route, segments) :\n            injector.runInContext(() => guard(route, segments));\n        return wrapIntoObservable(guardVal);\n    });\n    return of(canMatchObservables)\n        .pipe(prioritizedGuardValue(), redirectIfUrlTree(urlSerializer));\n}\n\nclass NoMatch {\n    constructor(segmentGroup) {\n        this.segmentGroup = segmentGroup || null;\n    }\n}\nclass AbsoluteRedirect {\n    constructor(urlTree) {\n        this.urlTree = urlTree;\n    }\n}\nfunction noMatch$1(segmentGroup) {\n    return throwError(new NoMatch(segmentGroup));\n}\nfunction absoluteRedirect(newTree) {\n    return throwError(new AbsoluteRedirect(newTree));\n}\nfunction namedOutletsRedirect(redirectTo) {\n    return throwError(new ɵRuntimeError(4000 /* RuntimeErrorCode.NAMED_OUTLET_REDIRECT */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n        `Only absolute redirects can have named outlets. redirectTo: '${redirectTo}'`));\n}\nfunction canLoadFails(route) {\n    return throwError(navigationCancelingError((typeof ngDevMode === 'undefined' || ngDevMode) &&\n        `Cannot load children because the guard of the route \"path: '${route.path}'\" returned false`, 3 /* NavigationCancellationCode.GuardRejected */));\n}\nclass ApplyRedirects {\n    constructor(urlSerializer, urlTree) {\n        this.urlSerializer = urlSerializer;\n        this.urlTree = urlTree;\n    }\n    noMatchError(e) {\n        return new ɵRuntimeError(4002 /* RuntimeErrorCode.NO_MATCH */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n            `Cannot match any routes. URL Segment: '${e.segmentGroup}'`);\n    }\n    lineralizeSegments(route, urlTree) {\n        let res = [];\n        let c = urlTree.root;\n        while (true) {\n            res = res.concat(c.segments);\n            if (c.numberOfChildren === 0) {\n                return of(res);\n            }\n            if (c.numberOfChildren > 1 || !c.children[PRIMARY_OUTLET]) {\n                return namedOutletsRedirect(route.redirectTo);\n            }\n            c = c.children[PRIMARY_OUTLET];\n        }\n    }\n    applyRedirectCommands(segments, redirectTo, posParams) {\n        return this.applyRedirectCreateUrlTree(redirectTo, this.urlSerializer.parse(redirectTo), segments, posParams);\n    }\n    applyRedirectCreateUrlTree(redirectTo, urlTree, segments, posParams) {\n        const newRoot = this.createSegmentGroup(redirectTo, urlTree.root, segments, posParams);\n        return new UrlTree(newRoot, this.createQueryParams(urlTree.queryParams, this.urlTree.queryParams), urlTree.fragment);\n    }\n    createQueryParams(redirectToParams, actualParams) {\n        const res = {};\n        Object.entries(redirectToParams).forEach(([k, v]) => {\n            const copySourceValue = typeof v === 'string' && v.startsWith(':');\n            if (copySourceValue) {\n                const sourceName = v.substring(1);\n                res[k] = actualParams[sourceName];\n            }\n            else {\n                res[k] = v;\n            }\n        });\n        return res;\n    }\n    createSegmentGroup(redirectTo, group, segments, posParams) {\n        const updatedSegments = this.createSegments(redirectTo, group.segments, segments, posParams);\n        let children = {};\n        Object.entries(group.children).forEach(([name, child]) => {\n            children[name] = this.createSegmentGroup(redirectTo, child, segments, posParams);\n        });\n        return new UrlSegmentGroup(updatedSegments, children);\n    }\n    createSegments(redirectTo, redirectToSegments, actualSegments, posParams) {\n        return redirectToSegments.map(s => s.path.startsWith(':') ? this.findPosParam(redirectTo, s, posParams) :\n            this.findOrReturn(s, actualSegments));\n    }\n    findPosParam(redirectTo, redirectToUrlSegment, posParams) {\n        const pos = posParams[redirectToUrlSegment.path.substring(1)];\n        if (!pos)\n            throw new ɵRuntimeError(4001 /* RuntimeErrorCode.MISSING_REDIRECT */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                `Cannot redirect to '${redirectTo}'. Cannot find '${redirectToUrlSegment.path}'.`);\n        return pos;\n    }\n    findOrReturn(redirectToUrlSegment, actualSegments) {\n        let idx = 0;\n        for (const s of actualSegments) {\n            if (s.path === redirectToUrlSegment.path) {\n                actualSegments.splice(idx);\n                return s;\n            }\n            idx++;\n        }\n        return redirectToUrlSegment;\n    }\n}\n\nconst noMatch = {\n    matched: false,\n    consumedSegments: [],\n    remainingSegments: [],\n    parameters: {},\n    positionalParamSegments: {}\n};\nfunction matchWithChecks(segmentGroup, route, segments, injector, urlSerializer) {\n    const result = match(segmentGroup, route, segments);\n    if (!result.matched) {\n        return of(result);\n    }\n    // Only create the Route's `EnvironmentInjector` if it matches the attempted\n    // navigation\n    injector = getOrCreateRouteInjectorIfNeeded(route, injector);\n    return runCanMatchGuards(injector, route, segments, urlSerializer)\n        .pipe(map((v) => v === true ? result : { ...noMatch }));\n}\nfunction match(segmentGroup, route, segments) {\n    if (route.path === '') {\n        if (route.pathMatch === 'full' && (segmentGroup.hasChildren() || segments.length > 0)) {\n            return { ...noMatch };\n        }\n        return {\n            matched: true,\n            consumedSegments: [],\n            remainingSegments: segments,\n            parameters: {},\n            positionalParamSegments: {}\n        };\n    }\n    const matcher = route.matcher || defaultUrlMatcher;\n    const res = matcher(segments, segmentGroup, route);\n    if (!res)\n        return { ...noMatch };\n    const posParams = {};\n    Object.entries(res.posParams ?? {}).forEach(([k, v]) => {\n        posParams[k] = v.path;\n    });\n    const parameters = res.consumed.length > 0 ?\n        { ...posParams, ...res.consumed[res.consumed.length - 1].parameters } :\n        posParams;\n    return {\n        matched: true,\n        consumedSegments: res.consumed,\n        remainingSegments: segments.slice(res.consumed.length),\n        // TODO(atscott): investigate combining parameters and positionalParamSegments\n        parameters,\n        positionalParamSegments: res.posParams ?? {}\n    };\n}\nfunction split(segmentGroup, consumedSegments, slicedSegments, config) {\n    if (slicedSegments.length > 0 &&\n        containsEmptyPathMatchesWithNamedOutlets(segmentGroup, slicedSegments, config)) {\n        const s = new UrlSegmentGroup(consumedSegments, createChildrenForEmptyPaths(config, new UrlSegmentGroup(slicedSegments, segmentGroup.children)));\n        return { segmentGroup: s, slicedSegments: [] };\n    }\n    if (slicedSegments.length === 0 &&\n        containsEmptyPathMatches(segmentGroup, slicedSegments, config)) {\n        const s = new UrlSegmentGroup(segmentGroup.segments, addEmptyPathsToChildrenIfNeeded(segmentGroup, consumedSegments, slicedSegments, config, segmentGroup.children));\n        return { segmentGroup: s, slicedSegments };\n    }\n    const s = new UrlSegmentGroup(segmentGroup.segments, segmentGroup.children);\n    return { segmentGroup: s, slicedSegments };\n}\nfunction addEmptyPathsToChildrenIfNeeded(segmentGroup, consumedSegments, slicedSegments, routes, children) {\n    const res = {};\n    for (const r of routes) {\n        if (emptyPathMatch(segmentGroup, slicedSegments, r) && !children[getOutlet(r)]) {\n            const s = new UrlSegmentGroup([], {});\n            res[getOutlet(r)] = s;\n        }\n    }\n    return { ...children, ...res };\n}\nfunction createChildrenForEmptyPaths(routes, primarySegment) {\n    const res = {};\n    res[PRIMARY_OUTLET] = primarySegment;\n    for (const r of routes) {\n        if (r.path === '' && getOutlet(r) !== PRIMARY_OUTLET) {\n            const s = new UrlSegmentGroup([], {});\n            res[getOutlet(r)] = s;\n        }\n    }\n    return res;\n}\nfunction containsEmptyPathMatchesWithNamedOutlets(segmentGroup, slicedSegments, routes) {\n    return routes.some(r => emptyPathMatch(segmentGroup, slicedSegments, r) && getOutlet(r) !== PRIMARY_OUTLET);\n}\nfunction containsEmptyPathMatches(segmentGroup, slicedSegments, routes) {\n    return routes.some(r => emptyPathMatch(segmentGroup, slicedSegments, r));\n}\nfunction emptyPathMatch(segmentGroup, slicedSegments, r) {\n    if ((segmentGroup.hasChildren() || slicedSegments.length > 0) && r.pathMatch === 'full') {\n        return false;\n    }\n    return r.path === '';\n}\n/**\n * Determines if `route` is a path match for the `rawSegment`, `segments`, and `outlet` without\n * verifying that its children are a full match for the remainder of the `rawSegment` children as\n * well.\n */\nfunction isImmediateMatch(route, rawSegment, segments, outlet) {\n    // We allow matches to empty paths when the outlets differ so we can match a url like `/(b:b)` to\n    // a config like\n    // * `{path: '', children: [{path: 'b', outlet: 'b'}]}`\n    // or even\n    // * `{path: '', outlet: 'a', children: [{path: 'b', outlet: 'b'}]`\n    //\n    // The exception here is when the segment outlet is for the primary outlet. This would\n    // result in a match inside the named outlet because all children there are written as primary\n    // outlets. So we need to prevent child named outlet matches in a url like `/b` in a config like\n    // * `{path: '', outlet: 'x' children: [{path: 'b'}]}`\n    // This should only match if the url is `/(x:b)`.\n    if (getOutlet(route) !== outlet &&\n        (outlet === PRIMARY_OUTLET || !emptyPathMatch(rawSegment, segments, route))) {\n        return false;\n    }\n    if (route.path === '**') {\n        return true;\n    }\n    return match(rawSegment, route, segments).matched;\n}\nfunction noLeftoversInUrl(segmentGroup, segments, outlet) {\n    return segments.length === 0 && !segmentGroup.children[outlet];\n}\n\nfunction recognize$1(injector, configLoader, rootComponentType, config, urlTree, urlSerializer, paramsInheritanceStrategy = 'emptyOnly') {\n    return new Recognizer(injector, configLoader, rootComponentType, config, urlTree, paramsInheritanceStrategy, urlSerializer)\n        .recognize();\n}\nclass Recognizer {\n    constructor(injector, configLoader, rootComponentType, config, urlTree, paramsInheritanceStrategy, urlSerializer) {\n        this.injector = injector;\n        this.configLoader = configLoader;\n        this.rootComponentType = rootComponentType;\n        this.config = config;\n        this.urlTree = urlTree;\n        this.paramsInheritanceStrategy = paramsInheritanceStrategy;\n        this.urlSerializer = urlSerializer;\n        this.allowRedirects = true;\n        this.applyRedirects = new ApplyRedirects(this.urlSerializer, this.urlTree);\n    }\n    noMatchError(e) {\n        return new ɵRuntimeError(4002 /* RuntimeErrorCode.NO_MATCH */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n            `Cannot match any routes. URL Segment: '${e.segmentGroup}'`);\n    }\n    recognize() {\n        const rootSegmentGroup = split(this.urlTree.root, [], [], this.config).segmentGroup;\n        return this.processSegmentGroup(this.injector, this.config, rootSegmentGroup, PRIMARY_OUTLET)\n            .pipe(catchError((e) => {\n            if (e instanceof AbsoluteRedirect) {\n                // After an absolute redirect we do not apply any more redirects!\n                // If this implementation changes, update the documentation note in `redirectTo`.\n                this.allowRedirects = false;\n                this.urlTree = e.urlTree;\n                return this.match(e.urlTree);\n            }\n            if (e instanceof NoMatch) {\n                throw this.noMatchError(e);\n            }\n            throw e;\n        }), map(children => {\n            // Use Object.freeze to prevent readers of the Router state from modifying it outside\n            // of a navigation, resulting in the router being out of sync with the browser.\n            const root = new ActivatedRouteSnapshot([], Object.freeze({}), Object.freeze({ ...this.urlTree.queryParams }), this.urlTree.fragment, {}, PRIMARY_OUTLET, this.rootComponentType, null, {});\n            const rootNode = new TreeNode(root, children);\n            const routeState = new RouterStateSnapshot('', rootNode);\n            const tree = createUrlTreeFromSnapshot(root, [], this.urlTree.queryParams, this.urlTree.fragment);\n            // https://github.com/angular/angular/issues/47307\n            // Creating the tree stringifies the query params\n            // We don't want to do this here so reassign them to the original.\n            tree.queryParams = this.urlTree.queryParams;\n            routeState.url = this.urlSerializer.serialize(tree);\n            this.inheritParamsAndData(routeState._root);\n            return { state: routeState, tree };\n        }));\n    }\n    match(tree) {\n        const expanded$ = this.processSegmentGroup(this.injector, this.config, tree.root, PRIMARY_OUTLET);\n        return expanded$.pipe(catchError((e) => {\n            if (e instanceof NoMatch) {\n                throw this.noMatchError(e);\n            }\n            throw e;\n        }));\n    }\n    inheritParamsAndData(routeNode) {\n        const route = routeNode.value;\n        const i = inheritedParamsDataResolve(route, this.paramsInheritanceStrategy);\n        route.params = Object.freeze(i.params);\n        route.data = Object.freeze(i.data);\n        routeNode.children.forEach(n => this.inheritParamsAndData(n));\n    }\n    processSegmentGroup(injector, config, segmentGroup, outlet) {\n        if (segmentGroup.segments.length === 0 && segmentGroup.hasChildren()) {\n            return this.processChildren(injector, config, segmentGroup);\n        }\n        return this.processSegment(injector, config, segmentGroup, segmentGroup.segments, outlet, true);\n    }\n    /**\n     * Matches every child outlet in the `segmentGroup` to a `Route` in the config. Returns `null` if\n     * we cannot find a match for _any_ of the children.\n     *\n     * @param config - The `Routes` to match against\n     * @param segmentGroup - The `UrlSegmentGroup` whose children need to be matched against the\n     *     config.\n     */\n    processChildren(injector, config, segmentGroup) {\n        // Expand outlets one at a time, starting with the primary outlet. We need to do it this way\n        // because an absolute redirect from the primary outlet takes precedence.\n        const childOutlets = [];\n        for (const child of Object.keys(segmentGroup.children)) {\n            if (child === 'primary') {\n                childOutlets.unshift(child);\n            }\n            else {\n                childOutlets.push(child);\n            }\n        }\n        return from(childOutlets)\n            .pipe(concatMap(childOutlet => {\n            const child = segmentGroup.children[childOutlet];\n            // Sort the config so that routes with outlets that match the one being activated\n            // appear first, followed by routes for other outlets, which might match if they have\n            // an empty path.\n            const sortedConfig = sortByMatchingOutlets(config, childOutlet);\n            return this.processSegmentGroup(injector, sortedConfig, child, childOutlet);\n        }), scan((children, outletChildren) => {\n            children.push(...outletChildren);\n            return children;\n        }), defaultIfEmpty(null), last$1(), mergeMap(children => {\n            if (children === null)\n                return noMatch$1(segmentGroup);\n            // Because we may have matched two outlets to the same empty path segment, we can have\n            // multiple activated results for the same outlet. We should merge the children of\n            // these results so the final return value is only one `TreeNode` per outlet.\n            const mergedChildren = mergeEmptyPathMatches(children);\n            if (typeof ngDevMode === 'undefined' || ngDevMode) {\n                // This should really never happen - we are only taking the first match for each\n                // outlet and merge the empty path matches.\n                checkOutletNameUniqueness(mergedChildren);\n            }\n            sortActivatedRouteSnapshots(mergedChildren);\n            return of(mergedChildren);\n        }));\n    }\n    processSegment(injector, routes, segmentGroup, segments, outlet, allowRedirects) {\n        return from(routes).pipe(concatMap(r => {\n            return this\n                .processSegmentAgainstRoute(r._injector ?? injector, routes, r, segmentGroup, segments, outlet, allowRedirects)\n                .pipe(catchError((e) => {\n                if (e instanceof NoMatch) {\n                    return of(null);\n                }\n                throw e;\n            }));\n        }), first((x) => !!x), catchError(e => {\n            if (isEmptyError(e)) {\n                if (noLeftoversInUrl(segmentGroup, segments, outlet)) {\n                    return of([]);\n                }\n                return noMatch$1(segmentGroup);\n            }\n            throw e;\n        }));\n    }\n    processSegmentAgainstRoute(injector, routes, route, rawSegment, segments, outlet, allowRedirects) {\n        if (!isImmediateMatch(route, rawSegment, segments, outlet))\n            return noMatch$1(rawSegment);\n        if (route.redirectTo === undefined) {\n            return this.matchSegmentAgainstRoute(injector, rawSegment, route, segments, outlet, allowRedirects);\n        }\n        if (allowRedirects && this.allowRedirects) {\n            return this.expandSegmentAgainstRouteUsingRedirect(injector, rawSegment, routes, route, segments, outlet);\n        }\n        return noMatch$1(rawSegment);\n    }\n    expandSegmentAgainstRouteUsingRedirect(injector, segmentGroup, routes, route, segments, outlet) {\n        if (route.path === '**') {\n            return this.expandWildCardWithParamsAgainstRouteUsingRedirect(injector, routes, route, outlet);\n        }\n        return this.expandRegularSegmentAgainstRouteUsingRedirect(injector, segmentGroup, routes, route, segments, outlet);\n    }\n    expandWildCardWithParamsAgainstRouteUsingRedirect(injector, routes, route, outlet) {\n        const newTree = this.applyRedirects.applyRedirectCommands([], route.redirectTo, {});\n        if (route.redirectTo.startsWith('/')) {\n            return absoluteRedirect(newTree);\n        }\n        return this.applyRedirects.lineralizeSegments(route, newTree)\n            .pipe(mergeMap((newSegments) => {\n            const group = new UrlSegmentGroup(newSegments, {});\n            return this.processSegment(injector, routes, group, newSegments, outlet, false);\n        }));\n    }\n    expandRegularSegmentAgainstRouteUsingRedirect(injector, segmentGroup, routes, route, segments, outlet) {\n        const { matched, consumedSegments, remainingSegments, positionalParamSegments } = match(segmentGroup, route, segments);\n        if (!matched)\n            return noMatch$1(segmentGroup);\n        const newTree = this.applyRedirects.applyRedirectCommands(consumedSegments, route.redirectTo, positionalParamSegments);\n        if (route.redirectTo.startsWith('/')) {\n            return absoluteRedirect(newTree);\n        }\n        return this.applyRedirects.lineralizeSegments(route, newTree)\n            .pipe(mergeMap((newSegments) => {\n            return this.processSegment(injector, routes, segmentGroup, newSegments.concat(remainingSegments), outlet, false);\n        }));\n    }\n    matchSegmentAgainstRoute(injector, rawSegment, route, segments, outlet, allowRedirects) {\n        let matchResult;\n        if (route.path === '**') {\n            const params = segments.length > 0 ? last(segments).parameters : {};\n            const snapshot = new ActivatedRouteSnapshot(segments, params, Object.freeze({ ...this.urlTree.queryParams }), this.urlTree.fragment, getData(route), getOutlet(route), route.component ?? route._loadedComponent ?? null, route, getResolve(route));\n            matchResult = of({\n                snapshot,\n                consumedSegments: [],\n                remainingSegments: [],\n            });\n            // Prior versions of the route matching algorithm would stop matching at the wildcard route.\n            // We should investigate a better strategy for any existing children. Otherwise, these\n            // child segments are silently dropped from the navigation.\n            // https://github.com/angular/angular/issues/40089\n            rawSegment.children = {};\n        }\n        else {\n            matchResult =\n                matchWithChecks(rawSegment, route, segments, injector, this.urlSerializer)\n                    .pipe(map(({ matched, consumedSegments, remainingSegments, parameters }) => {\n                    if (!matched) {\n                        return null;\n                    }\n                    const snapshot = new ActivatedRouteSnapshot(consumedSegments, parameters, Object.freeze({ ...this.urlTree.queryParams }), this.urlTree.fragment, getData(route), getOutlet(route), route.component ?? route._loadedComponent ?? null, route, getResolve(route));\n                    return { snapshot, consumedSegments, remainingSegments };\n                }));\n        }\n        return matchResult.pipe(switchMap((result) => {\n            if (result === null) {\n                return noMatch$1(rawSegment);\n            }\n            // If the route has an injector created from providers, we should start using that.\n            injector = route._injector ?? injector;\n            return this.getChildConfig(injector, route, segments)\n                .pipe(switchMap(({ routes: childConfig }) => {\n                const childInjector = route._loadedInjector ?? injector;\n                const { snapshot, consumedSegments, remainingSegments } = result;\n                const { segmentGroup, slicedSegments } = split(rawSegment, consumedSegments, remainingSegments, childConfig);\n                if (slicedSegments.length === 0 && segmentGroup.hasChildren()) {\n                    return this.processChildren(childInjector, childConfig, segmentGroup)\n                        .pipe(map(children => {\n                        if (children === null) {\n                            return null;\n                        }\n                        return [new TreeNode(snapshot, children)];\n                    }));\n                }\n                if (childConfig.length === 0 && slicedSegments.length === 0) {\n                    return of([new TreeNode(snapshot, [])]);\n                }\n                const matchedOnOutlet = getOutlet(route) === outlet;\n                // If we matched a config due to empty path match on a different outlet, we need to\n                // continue passing the current outlet for the segment rather than switch to PRIMARY.\n                // Note that we switch to primary when we have a match because outlet configs look like\n                // this: {path: 'a', outlet: 'a', children: [\n                //  {path: 'b', component: B},\n                //  {path: 'c', component: C},\n                // ]}\n                // Notice that the children of the named outlet are configured with the primary outlet\n                return this\n                    .processSegment(childInjector, childConfig, segmentGroup, slicedSegments, matchedOnOutlet ? PRIMARY_OUTLET : outlet, true)\n                    .pipe(map(children => {\n                    return [new TreeNode(snapshot, children)];\n                }));\n            }));\n        }));\n    }\n    getChildConfig(injector, route, segments) {\n        if (route.children) {\n            // The children belong to the same module\n            return of({ routes: route.children, injector });\n        }\n        if (route.loadChildren) {\n            // lazy children belong to the loaded module\n            if (route._loadedRoutes !== undefined) {\n                return of({ routes: route._loadedRoutes, injector: route._loadedInjector });\n            }\n            return runCanLoadGuards(injector, route, segments, this.urlSerializer)\n                .pipe(mergeMap((shouldLoadResult) => {\n                if (shouldLoadResult) {\n                    return this.configLoader.loadChildren(injector, route)\n                        .pipe(tap((cfg) => {\n                        route._loadedRoutes = cfg.routes;\n                        route._loadedInjector = cfg.injector;\n                    }));\n                }\n                return canLoadFails(route);\n            }));\n        }\n        return of({ routes: [], injector });\n    }\n}\nfunction sortActivatedRouteSnapshots(nodes) {\n    nodes.sort((a, b) => {\n        if (a.value.outlet === PRIMARY_OUTLET)\n            return -1;\n        if (b.value.outlet === PRIMARY_OUTLET)\n            return 1;\n        return a.value.outlet.localeCompare(b.value.outlet);\n    });\n}\nfunction hasEmptyPathConfig(node) {\n    const config = node.value.routeConfig;\n    return config && config.path === '';\n}\n/**\n * Finds `TreeNode`s with matching empty path route configs and merges them into `TreeNode` with\n * the children from each duplicate. This is necessary because different outlets can match a\n * single empty path route config and the results need to then be merged.\n */\nfunction mergeEmptyPathMatches(nodes) {\n    const result = [];\n    // The set of nodes which contain children that were merged from two duplicate empty path nodes.\n    const mergedNodes = new Set();\n    for (const node of nodes) {\n        if (!hasEmptyPathConfig(node)) {\n            result.push(node);\n            continue;\n        }\n        const duplicateEmptyPathNode = result.find(resultNode => node.value.routeConfig === resultNode.value.routeConfig);\n        if (duplicateEmptyPathNode !== undefined) {\n            duplicateEmptyPathNode.children.push(...node.children);\n            mergedNodes.add(duplicateEmptyPathNode);\n        }\n        else {\n            result.push(node);\n        }\n    }\n    // For each node which has children from multiple sources, we need to recompute a new `TreeNode`\n    // by also merging those children. This is necessary when there are multiple empty path configs\n    // in a row. Put another way: whenever we combine children of two nodes, we need to also check\n    // if any of those children can be combined into a single node as well.\n    for (const mergedNode of mergedNodes) {\n        const mergedChildren = mergeEmptyPathMatches(mergedNode.children);\n        result.push(new TreeNode(mergedNode.value, mergedChildren));\n    }\n    return result.filter(n => !mergedNodes.has(n));\n}\nfunction checkOutletNameUniqueness(nodes) {\n    const names = {};\n    nodes.forEach(n => {\n        const routeWithSameOutletName = names[n.value.outlet];\n        if (routeWithSameOutletName) {\n            const p = routeWithSameOutletName.url.map(s => s.toString()).join('/');\n            const c = n.value.url.map(s => s.toString()).join('/');\n            throw new ɵRuntimeError(4006 /* RuntimeErrorCode.TWO_SEGMENTS_WITH_SAME_OUTLET */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                `Two segments cannot have the same outlet name: '${p}' and '${c}'.`);\n        }\n        names[n.value.outlet] = n.value;\n    });\n}\nfunction getData(route) {\n    return route.data || {};\n}\nfunction getResolve(route) {\n    return route.resolve || {};\n}\n\nfunction recognize(injector, configLoader, rootComponentType, config, serializer, paramsInheritanceStrategy) {\n    return mergeMap(t => recognize$1(injector, configLoader, rootComponentType, config, t.extractedUrl, serializer, paramsInheritanceStrategy)\n        .pipe(map(({ state: targetSnapshot, tree: urlAfterRedirects }) => {\n        return { ...t, targetSnapshot, urlAfterRedirects };\n    })));\n}\n\nfunction resolveData(paramsInheritanceStrategy, injector) {\n    return mergeMap(t => {\n        const { targetSnapshot, guards: { canActivateChecks } } = t;\n        if (!canActivateChecks.length) {\n            return of(t);\n        }\n        let canActivateChecksResolved = 0;\n        return from(canActivateChecks)\n            .pipe(concatMap(check => runResolve(check.route, targetSnapshot, paramsInheritanceStrategy, injector)), tap(() => canActivateChecksResolved++), takeLast(1), mergeMap(_ => canActivateChecksResolved === canActivateChecks.length ? of(t) : EMPTY));\n    });\n}\nfunction runResolve(futureARS, futureRSS, paramsInheritanceStrategy, injector) {\n    const config = futureARS.routeConfig;\n    const resolve = futureARS._resolve;\n    if (config?.title !== undefined && !hasStaticTitle(config)) {\n        resolve[RouteTitleKey] = config.title;\n    }\n    return resolveNode(resolve, futureARS, futureRSS, injector).pipe(map((resolvedData) => {\n        futureARS._resolvedData = resolvedData;\n        futureARS.data = inheritedParamsDataResolve(futureARS, paramsInheritanceStrategy).resolve;\n        if (config && hasStaticTitle(config)) {\n            futureARS.data[RouteTitleKey] = config.title;\n        }\n        return null;\n    }));\n}\nfunction resolveNode(resolve, futureARS, futureRSS, injector) {\n    const keys = getDataKeys(resolve);\n    if (keys.length === 0) {\n        return of({});\n    }\n    const data = {};\n    return from(keys).pipe(mergeMap(key => getResolver(resolve[key], futureARS, futureRSS, injector)\n        .pipe(first(), tap((value) => {\n        data[key] = value;\n    }))), takeLast(1), mapTo(data), catchError((e) => isEmptyError(e) ? EMPTY : throwError(e)));\n}\nfunction getDataKeys(obj) {\n    return [...Object.keys(obj), ...Object.getOwnPropertySymbols(obj)];\n}\nfunction getResolver(injectionToken, futureARS, futureRSS, injector) {\n    const closestInjector = getClosestRouteInjector(futureARS) ?? injector;\n    const resolver = getTokenOrFunctionIdentity(injectionToken, closestInjector);\n    const resolverValue = resolver.resolve ?\n        resolver.resolve(futureARS, futureRSS) :\n        closestInjector.runInContext(() => resolver(futureARS, futureRSS));\n    return wrapIntoObservable(resolverValue);\n}\nfunction hasStaticTitle(config) {\n    return typeof config.title === 'string' || config.title === null;\n}\n\n/**\n * Perform a side effect through a switchMap for every emission on the source Observable,\n * but return an Observable that is identical to the source. It's essentially the same as\n * the `tap` operator, but if the side effectful `next` function returns an ObservableInput,\n * it will wait before continuing with the original value.\n */\nfunction switchTap(next) {\n    return switchMap(v => {\n        const nextResult = next(v);\n        if (nextResult) {\n            return from(nextResult).pipe(map(() => v));\n        }\n        return of(v);\n    });\n}\n\n/**\n * The [DI token](guide/glossary/#di-token) for a router configuration.\n *\n * `ROUTES` is a low level API for router configuration via dependency injection.\n *\n * We recommend that in almost all cases to use higher level APIs such as `RouterModule.forRoot()`,\n * `provideRouter`, or `Router.resetConfig()`.\n *\n * @publicApi\n */\nconst ROUTES = new InjectionToken('ROUTES');\nclass RouterConfigLoader {\n    constructor() {\n        this.componentLoaders = new WeakMap();\n        this.childrenLoaders = new WeakMap();\n        this.compiler = inject(Compiler);\n    }\n    loadComponent(route) {\n        if (this.componentLoaders.get(route)) {\n            return this.componentLoaders.get(route);\n        }\n        else if (route._loadedComponent) {\n            return of(route._loadedComponent);\n        }\n        if (this.onLoadStartListener) {\n            this.onLoadStartListener(route);\n        }\n        const loadRunner = wrapIntoObservable(route.loadComponent())\n            .pipe(map(maybeUnwrapDefaultExport), tap(component => {\n            if (this.onLoadEndListener) {\n                this.onLoadEndListener(route);\n            }\n            (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                assertStandalone(route.path ?? '', component);\n            route._loadedComponent = component;\n        }), finalize(() => {\n            this.componentLoaders.delete(route);\n        }));\n        // Use custom ConnectableObservable as share in runners pipe increasing the bundle size too much\n        const loader = new ConnectableObservable(loadRunner, () => new Subject()).pipe(refCount());\n        this.componentLoaders.set(route, loader);\n        return loader;\n    }\n    loadChildren(parentInjector, route) {\n        if (this.childrenLoaders.get(route)) {\n            return this.childrenLoaders.get(route);\n        }\n        else if (route._loadedRoutes) {\n            return of({ routes: route._loadedRoutes, injector: route._loadedInjector });\n        }\n        if (this.onLoadStartListener) {\n            this.onLoadStartListener(route);\n        }\n        const moduleFactoryOrRoutes$ = loadChildren(route, this.compiler, parentInjector, this.onLoadEndListener);\n        const loadRunner = moduleFactoryOrRoutes$.pipe(finalize(() => {\n            this.childrenLoaders.delete(route);\n        }));\n        // Use custom ConnectableObservable as share in runners pipe increasing the bundle size too much\n        const loader = new ConnectableObservable(loadRunner, () => new Subject())\n            .pipe(refCount());\n        this.childrenLoaders.set(route, loader);\n        return loader;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterConfigLoader, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterConfigLoader, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterConfigLoader, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n/**\n * Executes a `route.loadChildren` callback and converts the result to an array of child routes and\n * an injector if that callback returned a module.\n *\n * This function is used for the route discovery during prerendering\n * in @angular-devkit/build-angular. If there are any updates to the contract here, it will require\n * an update to the extractor.\n */\nfunction loadChildren(route, compiler, parentInjector, onLoadEndListener) {\n    return wrapIntoObservable(route.loadChildren())\n        .pipe(map(maybeUnwrapDefaultExport), mergeMap((t) => {\n        if (t instanceof NgModuleFactory || Array.isArray(t)) {\n            return of(t);\n        }\n        else {\n            return from(compiler.compileModuleAsync(t));\n        }\n    }), map((factoryOrRoutes) => {\n        if (onLoadEndListener) {\n            onLoadEndListener(route);\n        }\n        // This injector comes from the `NgModuleRef` when lazy loading an `NgModule`. There is\n        // no injector associated with lazy loading a `Route` array.\n        let injector;\n        let rawRoutes;\n        let requireStandaloneComponents = false;\n        if (Array.isArray(factoryOrRoutes)) {\n            rawRoutes = factoryOrRoutes;\n            requireStandaloneComponents = true;\n        }\n        else {\n            injector = factoryOrRoutes.create(parentInjector).injector;\n            // When loading a module that doesn't provide `RouterModule.forChild()` preloader\n            // will get stuck in an infinite loop. The child module's Injector will look to\n            // its parent `Injector` when it doesn't find any ROUTES so it will return routes\n            // for it's parent module instead.\n            rawRoutes = injector.get(ROUTES, [], { optional: true, self: true }).flat();\n        }\n        const routes = rawRoutes.map(standardizeConfig);\n        (typeof ngDevMode === 'undefined' || ngDevMode) &&\n            validateConfig(routes, route.path, requireStandaloneComponents);\n        return { routes, injector };\n    }));\n}\nfunction isWrappedDefaultExport(value) {\n    // We use `in` here with a string key `'default'`, because we expect `DefaultExport` objects to be\n    // dynamically imported ES modules with a spec-mandated `default` key. Thus we don't expect that\n    // `default` will be a renamed property.\n    return value && typeof value === 'object' && 'default' in value;\n}\nfunction maybeUnwrapDefaultExport(input) {\n    // As per `isWrappedDefaultExport`, the `default` key here is generated by the browser and not\n    // subject to property renaming, so we reference it with bracket access.\n    return isWrappedDefaultExport(input) ? input['default'] : input;\n}\n\nclass NavigationTransitions {\n    get hasRequestedNavigation() {\n        return this.navigationId !== 0;\n    }\n    constructor() {\n        this.currentNavigation = null;\n        this.currentTransition = null;\n        this.lastSuccessfulNavigation = null;\n        /**\n         * These events are used to communicate back to the Router about the state of the transition. The\n         * Router wants to respond to these events in various ways. Because the `NavigationTransition`\n         * class is not public, this event subject is not publicly exposed.\n         */\n        this.events = new Subject();\n        /**\n         * Used to abort the current transition with an error.\n         */\n        this.transitionAbortSubject = new Subject();\n        this.configLoader = inject(RouterConfigLoader);\n        this.environmentInjector = inject(EnvironmentInjector);\n        this.urlSerializer = inject(UrlSerializer);\n        this.rootContexts = inject(ChildrenOutletContexts);\n        this.inputBindingEnabled = inject(INPUT_BINDER, { optional: true }) !== null;\n        this.navigationId = 0;\n        /**\n         * Hook that enables you to pause navigation after the preactivation phase.\n         * Used by `RouterModule`.\n         *\n         * @internal\n         */\n        this.afterPreactivation = () => of(void 0);\n        /** @internal */\n        this.rootComponentType = null;\n        const onLoadStart = (r) => this.events.next(new RouteConfigLoadStart(r));\n        const onLoadEnd = (r) => this.events.next(new RouteConfigLoadEnd(r));\n        this.configLoader.onLoadEndListener = onLoadEnd;\n        this.configLoader.onLoadStartListener = onLoadStart;\n    }\n    complete() {\n        this.transitions?.complete();\n    }\n    handleNavigationRequest(request) {\n        const id = ++this.navigationId;\n        this.transitions?.next({ ...this.transitions.value, ...request, id });\n    }\n    setupNavigations(router, initialUrlTree, initialRouterState) {\n        this.transitions = new BehaviorSubject({\n            id: 0,\n            currentUrlTree: initialUrlTree,\n            currentRawUrl: initialUrlTree,\n            currentBrowserUrl: initialUrlTree,\n            extractedUrl: router.urlHandlingStrategy.extract(initialUrlTree),\n            urlAfterRedirects: router.urlHandlingStrategy.extract(initialUrlTree),\n            rawUrl: initialUrlTree,\n            extras: {},\n            resolve: null,\n            reject: null,\n            promise: Promise.resolve(true),\n            source: IMPERATIVE_NAVIGATION,\n            restoredState: null,\n            currentSnapshot: initialRouterState.snapshot,\n            targetSnapshot: null,\n            currentRouterState: initialRouterState,\n            targetRouterState: null,\n            guards: { canActivateChecks: [], canDeactivateChecks: [] },\n            guardsResult: null,\n        });\n        return this.transitions.pipe(filter(t => t.id !== 0), \n        // Extract URL\n        map(t => ({ ...t, extractedUrl: router.urlHandlingStrategy.extract(t.rawUrl) })), \n        // Using switchMap so we cancel executing navigations when a new one comes in\n        switchMap(overallTransitionState => {\n            this.currentTransition = overallTransitionState;\n            let completed = false;\n            let errored = false;\n            return of(overallTransitionState)\n                .pipe(\n            // Store the Navigation object\n            tap(t => {\n                this.currentNavigation = {\n                    id: t.id,\n                    initialUrl: t.rawUrl,\n                    extractedUrl: t.extractedUrl,\n                    trigger: t.source,\n                    extras: t.extras,\n                    previousNavigation: !this.lastSuccessfulNavigation ? null : {\n                        ...this.lastSuccessfulNavigation,\n                        previousNavigation: null,\n                    },\n                };\n            }), switchMap(t => {\n                const browserUrlTree = t.currentBrowserUrl.toString();\n                const urlTransition = !router.navigated ||\n                    t.extractedUrl.toString() !== browserUrlTree ||\n                    // Navigations which succeed or ones which fail and are cleaned up\n                    // correctly should result in `browserUrlTree` and `currentUrlTree`\n                    // matching. If this is not the case, assume something went wrong and\n                    // try processing the URL again.\n                    browserUrlTree !== t.currentUrlTree.toString();\n                const onSameUrlNavigation = t.extras.onSameUrlNavigation ?? router.onSameUrlNavigation;\n                if (!urlTransition && onSameUrlNavigation !== 'reload') {\n                    const reason = (typeof ngDevMode === 'undefined' || ngDevMode) ?\n                        `Navigation to ${t.rawUrl} was ignored because it is the same as the current Router URL.` :\n                        '';\n                    this.events.next(new NavigationSkipped(t.id, this.urlSerializer.serialize(t.rawUrl), reason, 0 /* NavigationSkippedCode.IgnoredSameUrlNavigation */));\n                    t.resolve(null);\n                    return EMPTY;\n                }\n                if (router.urlHandlingStrategy.shouldProcessUrl(t.rawUrl)) {\n                    return of(t).pipe(\n                    // Fire NavigationStart event\n                    switchMap(t => {\n                        const transition = this.transitions?.getValue();\n                        this.events.next(new NavigationStart(t.id, this.urlSerializer.serialize(t.extractedUrl), t.source, t.restoredState));\n                        if (transition !== this.transitions?.getValue()) {\n                            return EMPTY;\n                        }\n                        // This delay is required to match old behavior that forced\n                        // navigation to always be async\n                        return Promise.resolve(t);\n                    }), \n                    // Recognize\n                    recognize(this.environmentInjector, this.configLoader, this.rootComponentType, router.config, this.urlSerializer, router.paramsInheritanceStrategy), \n                    // Update URL if in `eager` update mode\n                    tap(t => {\n                        overallTransitionState.targetSnapshot = t.targetSnapshot;\n                        overallTransitionState.urlAfterRedirects = t.urlAfterRedirects;\n                        this.currentNavigation = {\n                            ...this.currentNavigation,\n                            finalUrl: t.urlAfterRedirects\n                        };\n                        // Fire RoutesRecognized\n                        const routesRecognized = new RoutesRecognized(t.id, this.urlSerializer.serialize(t.extractedUrl), this.urlSerializer.serialize(t.urlAfterRedirects), t.targetSnapshot);\n                        this.events.next(routesRecognized);\n                    }));\n                }\n                else if (urlTransition &&\n                    router.urlHandlingStrategy.shouldProcessUrl(t.currentRawUrl)) {\n                    /* When the current URL shouldn't be processed, but the previous one\n                     * was, we handle this \"error condition\" by navigating to the\n                     * previously successful URL, but leaving the URL intact.*/\n                    const { id, extractedUrl, source, restoredState, extras } = t;\n                    const navStart = new NavigationStart(id, this.urlSerializer.serialize(extractedUrl), source, restoredState);\n                    this.events.next(navStart);\n                    const targetSnapshot = createEmptyState(extractedUrl, this.rootComponentType).snapshot;\n                    this.currentTransition = overallTransitionState = {\n                        ...t,\n                        targetSnapshot,\n                        urlAfterRedirects: extractedUrl,\n                        extras: { ...extras, skipLocationChange: false, replaceUrl: false },\n                    };\n                    return of(overallTransitionState);\n                }\n                else {\n                    /* When neither the current or previous URL can be processed, do\n                     * nothing other than update router's internal reference to the\n                     * current \"settled\" URL. This way the next navigation will be coming\n                     * from the current URL in the browser.\n                     */\n                    const reason = (typeof ngDevMode === 'undefined' || ngDevMode) ?\n                        `Navigation was ignored because the UrlHandlingStrategy` +\n                            ` indicated neither the current URL ${t.currentRawUrl} nor target URL ${t.rawUrl} should be processed.` :\n                        '';\n                    this.events.next(new NavigationSkipped(t.id, this.urlSerializer.serialize(t.extractedUrl), reason, 1 /* NavigationSkippedCode.IgnoredByUrlHandlingStrategy */));\n                    t.resolve(null);\n                    return EMPTY;\n                }\n            }), \n            // --- GUARDS ---\n            tap(t => {\n                const guardsStart = new GuardsCheckStart(t.id, this.urlSerializer.serialize(t.extractedUrl), this.urlSerializer.serialize(t.urlAfterRedirects), t.targetSnapshot);\n                this.events.next(guardsStart);\n            }), map(t => {\n                this.currentTransition = overallTransitionState = {\n                    ...t,\n                    guards: getAllRouteGuards(t.targetSnapshot, t.currentSnapshot, this.rootContexts)\n                };\n                return overallTransitionState;\n            }), checkGuards(this.environmentInjector, (evt) => this.events.next(evt)), tap(t => {\n                overallTransitionState.guardsResult = t.guardsResult;\n                if (isUrlTree(t.guardsResult)) {\n                    throw redirectingNavigationError(this.urlSerializer, t.guardsResult);\n                }\n                const guardsEnd = new GuardsCheckEnd(t.id, this.urlSerializer.serialize(t.extractedUrl), this.urlSerializer.serialize(t.urlAfterRedirects), t.targetSnapshot, !!t.guardsResult);\n                this.events.next(guardsEnd);\n            }), filter(t => {\n                if (!t.guardsResult) {\n                    this.cancelNavigationTransition(t, '', 3 /* NavigationCancellationCode.GuardRejected */);\n                    return false;\n                }\n                return true;\n            }), \n            // --- RESOLVE ---\n            switchTap(t => {\n                if (t.guards.canActivateChecks.length) {\n                    return of(t).pipe(tap(t => {\n                        const resolveStart = new ResolveStart(t.id, this.urlSerializer.serialize(t.extractedUrl), this.urlSerializer.serialize(t.urlAfterRedirects), t.targetSnapshot);\n                        this.events.next(resolveStart);\n                    }), switchMap(t => {\n                        let dataResolved = false;\n                        return of(t).pipe(resolveData(router.paramsInheritanceStrategy, this.environmentInjector), tap({\n                            next: () => dataResolved = true,\n                            complete: () => {\n                                if (!dataResolved) {\n                                    this.cancelNavigationTransition(t, (typeof ngDevMode === 'undefined' || ngDevMode) ?\n                                        `At least one route resolver didn't emit any value.` :\n                                        '', 2 /* NavigationCancellationCode.NoDataFromResolver */);\n                                }\n                            }\n                        }));\n                    }), tap(t => {\n                        const resolveEnd = new ResolveEnd(t.id, this.urlSerializer.serialize(t.extractedUrl), this.urlSerializer.serialize(t.urlAfterRedirects), t.targetSnapshot);\n                        this.events.next(resolveEnd);\n                    }));\n                }\n                return undefined;\n            }), \n            // --- LOAD COMPONENTS ---\n            switchTap((t) => {\n                const loadComponents = (route) => {\n                    const loaders = [];\n                    if (route.routeConfig?.loadComponent &&\n                        !route.routeConfig._loadedComponent) {\n                        loaders.push(this.configLoader.loadComponent(route.routeConfig)\n                            .pipe(tap(loadedComponent => {\n                            route.component = loadedComponent;\n                        }), map(() => void 0)));\n                    }\n                    for (const child of route.children) {\n                        loaders.push(...loadComponents(child));\n                    }\n                    return loaders;\n                };\n                return combineLatest(loadComponents(t.targetSnapshot.root))\n                    .pipe(defaultIfEmpty(), take(1));\n            }), switchTap(() => this.afterPreactivation()), map((t) => {\n                const targetRouterState = createRouterState(router.routeReuseStrategy, t.targetSnapshot, t.currentRouterState);\n                this.currentTransition =\n                    overallTransitionState = { ...t, targetRouterState };\n                return overallTransitionState;\n            }), tap(() => {\n                this.events.next(new BeforeActivateRoutes());\n            }), activateRoutes(this.rootContexts, router.routeReuseStrategy, (evt) => this.events.next(evt), this.inputBindingEnabled), \n            // Ensure that if some observable used to drive the transition doesn't\n            // complete, the navigation still finalizes This should never happen, but\n            // this is done as a safety measure to avoid surfacing this error (#49567).\n            take(1), tap({\n                next: (t) => {\n                    completed = true;\n                    this.lastSuccessfulNavigation = this.currentNavigation;\n                    this.events.next(new NavigationEnd(t.id, this.urlSerializer.serialize(t.extractedUrl), this.urlSerializer.serialize(t.urlAfterRedirects)));\n                    router.titleStrategy?.updateTitle(t.targetRouterState.snapshot);\n                    t.resolve(true);\n                },\n                complete: () => {\n                    completed = true;\n                }\n            }), \n            // There used to be a lot more logic happening directly within the\n            // transition Observable. Some of this logic has been refactored out to\n            // other places but there may still be errors that happen there. This gives\n            // us a way to cancel the transition from the outside. This may also be\n            // required in the future to support something like the abort signal of the\n            // Navigation API where the navigation gets aborted from outside the\n            // transition.\n            takeUntil(this.transitionAbortSubject.pipe(tap(err => {\n                throw err;\n            }))), finalize(() => {\n                /* When the navigation stream finishes either through error or success,\n                 * we set the `completed` or `errored` flag. However, there are some\n                 * situations where we could get here without either of those being set.\n                 * For instance, a redirect during NavigationStart. Therefore, this is a\n                 * catch-all to make sure the NavigationCancel event is fired when a\n                 * navigation gets cancelled but not caught by other means. */\n                if (!completed && !errored) {\n                    const cancelationReason = (typeof ngDevMode === 'undefined' || ngDevMode) ?\n                        `Navigation ID ${overallTransitionState\n                            .id} is not equal to the current navigation id ${this.navigationId}` :\n                        '';\n                    this.cancelNavigationTransition(overallTransitionState, cancelationReason, 1 /* NavigationCancellationCode.SupersededByNewNavigation */);\n                }\n                // Only clear current navigation if it is still set to the one that\n                // finalized.\n                if (this.currentNavigation?.id === overallTransitionState.id) {\n                    this.currentNavigation = null;\n                }\n            }), catchError((e) => {\n                errored = true;\n                /* This error type is issued during Redirect, and is handled as a\n                 * cancellation rather than an error. */\n                if (isNavigationCancelingError$1(e)) {\n                    this.events.next(new NavigationCancel(overallTransitionState.id, this.urlSerializer.serialize(overallTransitionState.extractedUrl), e.message, e.cancellationCode));\n                    // When redirecting, we need to delay resolving the navigation\n                    // promise and push it to the redirect navigation\n                    if (!isRedirectingNavigationCancelingError$1(e)) {\n                        overallTransitionState.resolve(false);\n                    }\n                    else {\n                        this.events.next(new RedirectRequest(e.url));\n                    }\n                    /* All other errors should reset to the router's internal URL reference\n                     * to the pre-error state. */\n                }\n                else {\n                    this.events.next(new NavigationError(overallTransitionState.id, this.urlSerializer.serialize(overallTransitionState.extractedUrl), e, overallTransitionState.targetSnapshot ?? undefined));\n                    try {\n                        overallTransitionState.resolve(router.errorHandler(e));\n                    }\n                    catch (ee) {\n                        overallTransitionState.reject(ee);\n                    }\n                }\n                return EMPTY;\n            }));\n            // casting because `pipe` returns observable({}) when called with 8+ arguments\n        }));\n    }\n    cancelNavigationTransition(t, reason, code) {\n        const navCancel = new NavigationCancel(t.id, this.urlSerializer.serialize(t.extractedUrl), reason, code);\n        this.events.next(navCancel);\n        t.resolve(false);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NavigationTransitions, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NavigationTransitions, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NavigationTransitions, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return []; } });\nfunction isBrowserTriggeredNavigation(source) {\n    return source !== IMPERATIVE_NAVIGATION;\n}\n\n/**\n * Provides a strategy for setting the page title after a router navigation.\n *\n * The built-in implementation traverses the router state snapshot and finds the deepest primary\n * outlet with `title` property. Given the `Routes` below, navigating to\n * `/base/child(popup:aux)` would result in the document title being set to \"child\".\n * ```\n * [\n *   {path: 'base', title: 'base', children: [\n *     {path: 'child', title: 'child'},\n *   ],\n *   {path: 'aux', outlet: 'popup', title: 'popupTitle'}\n * ]\n * ```\n *\n * This class can be used as a base class for custom title strategies. That is, you can create your\n * own class that extends the `TitleStrategy`. Note that in the above example, the `title`\n * from the named outlet is never used. However, a custom strategy might be implemented to\n * incorporate titles in named outlets.\n *\n * @publicApi\n * @see [Page title guide](guide/router#setting-the-page-title)\n */\nclass TitleStrategy {\n    /**\n     * @returns The `title` of the deepest primary route.\n     */\n    buildTitle(snapshot) {\n        let pageTitle;\n        let route = snapshot.root;\n        while (route !== undefined) {\n            pageTitle = this.getResolvedTitleForRoute(route) ?? pageTitle;\n            route = route.children.find(child => child.outlet === PRIMARY_OUTLET);\n        }\n        return pageTitle;\n    }\n    /**\n     * Given an `ActivatedRouteSnapshot`, returns the final value of the\n     * `Route.title` property, which can either be a static string or a resolved value.\n     */\n    getResolvedTitleForRoute(snapshot) {\n        return snapshot.data[RouteTitleKey];\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: TitleStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: TitleStrategy, providedIn: 'root', useFactory: () => inject(DefaultTitleStrategy) }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: TitleStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: () => inject(DefaultTitleStrategy) }]\n        }] });\n/**\n * The default `TitleStrategy` used by the router that updates the title using the `Title` service.\n */\nclass DefaultTitleStrategy extends TitleStrategy {\n    constructor(title) {\n        super();\n        this.title = title;\n    }\n    /**\n     * Sets the title of the browser to the given value.\n     *\n     * @param title The `pageTitle` from the deepest primary route.\n     */\n    updateTitle(snapshot) {\n        const title = this.buildTitle(snapshot);\n        if (title !== undefined) {\n            this.title.setTitle(title);\n        }\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultTitleStrategy, deps: [{ token: i1.Title }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultTitleStrategy, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultTitleStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return [{ type: i1.Title }]; } });\n\n/**\n * @description\n *\n * Provides a way to customize when activated routes get reused.\n *\n * @publicApi\n */\nclass RouteReuseStrategy {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouteReuseStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouteReuseStrategy, providedIn: 'root', useFactory: () => inject(DefaultRouteReuseStrategy) }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouteReuseStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: () => inject(DefaultRouteReuseStrategy) }]\n        }] });\n/**\n * @description\n *\n * This base route reuse strategy only reuses routes when the matched router configs are\n * identical. This prevents components from being destroyed and recreated\n * when just the route parameters, query parameters or fragment change\n * (that is, the existing component is _reused_).\n *\n * This strategy does not store any routes for later reuse.\n *\n * Angular uses this strategy by default.\n *\n *\n * It can be used as a base class for custom route reuse strategies, i.e. you can create your own\n * class that extends the `BaseRouteReuseStrategy` one.\n * @publicApi\n */\nclass BaseRouteReuseStrategy {\n    /**\n     * Whether the given route should detach for later reuse.\n     * Always returns false for `BaseRouteReuseStrategy`.\n     * */\n    shouldDetach(route) {\n        return false;\n    }\n    /**\n     * A no-op; the route is never stored since this strategy never detaches routes for later re-use.\n     */\n    store(route, detachedTree) { }\n    /** Returns `false`, meaning the route (and its subtree) is never reattached */\n    shouldAttach(route) {\n        return false;\n    }\n    /** Returns `null` because this strategy does not store routes for later re-use. */\n    retrieve(route) {\n        return null;\n    }\n    /**\n     * Determines if a route should be reused.\n     * This strategy returns `true` when the future route config and current route config are\n     * identical.\n     */\n    shouldReuseRoute(future, curr) {\n        return future.routeConfig === curr.routeConfig;\n    }\n}\nclass DefaultRouteReuseStrategy extends BaseRouteReuseStrategy {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultRouteReuseStrategy, deps: null, target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultRouteReuseStrategy, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultRouteReuseStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n\n/**\n * A [DI token](guide/glossary/#di-token) for the router service.\n *\n * @publicApi\n */\nconst ROUTER_CONFIGURATION = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'router config' : '', {\n    providedIn: 'root',\n    factory: () => ({}),\n});\n\n/**\n * @description\n *\n * Provides a way to migrate AngularJS applications to Angular.\n *\n * @publicApi\n */\nclass UrlHandlingStrategy {\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UrlHandlingStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UrlHandlingStrategy, providedIn: 'root', useFactory: () => inject(DefaultUrlHandlingStrategy) }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: UrlHandlingStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root', useFactory: () => inject(DefaultUrlHandlingStrategy) }]\n        }] });\n/**\n * @publicApi\n */\nclass DefaultUrlHandlingStrategy {\n    shouldProcessUrl(url) {\n        return true;\n    }\n    extract(url) {\n        return url;\n    }\n    merge(newUrlPart, wholeUrl) {\n        return newUrlPart;\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultUrlHandlingStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultUrlHandlingStrategy, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: DefaultUrlHandlingStrategy, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n\nvar NavigationResult;\n(function (NavigationResult) {\n    NavigationResult[NavigationResult[\"COMPLETE\"] = 0] = \"COMPLETE\";\n    NavigationResult[NavigationResult[\"FAILED\"] = 1] = \"FAILED\";\n    NavigationResult[NavigationResult[\"REDIRECTING\"] = 2] = \"REDIRECTING\";\n})(NavigationResult || (NavigationResult = {}));\n/**\n * Performs the given action once the router finishes its next/current navigation.\n *\n * The navigation is considered complete under the following conditions:\n * - `NavigationCancel` event emits and the code is not `NavigationCancellationCode.Redirect` or\n * `NavigationCancellationCode.SupersededByNewNavigation`. In these cases, the\n * redirecting/superseding navigation must finish.\n * - `NavigationError`, `NavigationEnd`, or `NavigationSkipped` event emits\n */\nfunction afterNextNavigation(router, action) {\n    router.events\n        .pipe(filter((e) => e instanceof NavigationEnd || e instanceof NavigationCancel ||\n        e instanceof NavigationError || e instanceof NavigationSkipped), map(e => {\n        if (e instanceof NavigationEnd || e instanceof NavigationSkipped) {\n            return NavigationResult.COMPLETE;\n        }\n        const redirecting = e instanceof NavigationCancel ?\n            (e.code === 0 /* NavigationCancellationCode.Redirect */ ||\n                e.code === 1 /* NavigationCancellationCode.SupersededByNewNavigation */) :\n            false;\n        return redirecting ? NavigationResult.REDIRECTING : NavigationResult.FAILED;\n    }), filter((result) => result !== NavigationResult.REDIRECTING), take(1))\n        .subscribe(() => {\n        action();\n    });\n}\n\nfunction defaultErrorHandler(error) {\n    throw error;\n}\nfunction defaultMalformedUriErrorHandler(error, urlSerializer, url) {\n    return urlSerializer.parse('/');\n}\n/**\n * The equivalent `IsActiveMatchOptions` options for `Router.isActive` is called with `true`\n * (exact = true).\n */\nconst exactMatchOptions = {\n    paths: 'exact',\n    fragment: 'ignored',\n    matrixParams: 'ignored',\n    queryParams: 'exact'\n};\n/**\n * The equivalent `IsActiveMatchOptions` options for `Router.isActive` is called with `false`\n * (exact = false).\n */\nconst subsetMatchOptions = {\n    paths: 'subset',\n    fragment: 'ignored',\n    matrixParams: 'ignored',\n    queryParams: 'subset'\n};\n/**\n * @description\n *\n * A service that provides navigation among views and URL manipulation capabilities.\n *\n * @see {@link Route}\n * @see [Routing and Navigation Guide](guide/router).\n *\n * @ngModule RouterModule\n *\n * @publicApi\n */\nclass Router {\n    // TODO(b/260747083): This should not exist and navigationId should be private in\n    // `NavigationTransitions`\n    get navigationId() {\n        return this.navigationTransitions.navigationId;\n    }\n    /**\n     * The ɵrouterPageId of whatever page is currently active in the browser history. This is\n     * important for computing the target page id for new navigations because we need to ensure each\n     * page id in the browser history is 1 more than the previous entry.\n     */\n    get browserPageId() {\n        if (this.canceledNavigationResolution !== 'computed') {\n            return this.currentPageId;\n        }\n        return this.location.getState()?.ɵrouterPageId ?? this.currentPageId;\n    }\n    /**\n     * An event stream for routing events.\n     */\n    get events() {\n        // TODO(atscott): This _should_ be events.asObservable(). However, this change requires internal\n        // cleanup: tests are doing `(route.events as Subject<Event>).next(...)`. This isn't\n        // allowed/supported but we still have to fix these or file bugs against the teams before making\n        // the change.\n        return this._events;\n    }\n    constructor() {\n        this.disposed = false;\n        /**\n         * The id of the currently active page in the router.\n         * Updated to the transition's target id on a successful navigation.\n         *\n         * This is used to track what page the router last activated. When an attempted navigation fails,\n         * the router can then use this to compute how to restore the state back to the previously active\n         * page.\n         */\n        this.currentPageId = 0;\n        this.console = inject(ɵConsole);\n        this.isNgZoneEnabled = false;\n        /**\n         * The private `Subject` type for the public events exposed in the getter. This is used internally\n         * to push events to. The separate field allows us to expose separate types in the public API\n         * (i.e., an Observable rather than the Subject).\n         */\n        this._events = new Subject();\n        this.options = inject(ROUTER_CONFIGURATION, { optional: true }) || {};\n        this.pendingTasks = inject(ɵInitialRenderPendingTasks);\n        /**\n         * A handler for navigation errors in this NgModule.\n         *\n         * @deprecated Subscribe to the `Router` events and watch for `NavigationError` instead.\n         *   `provideRouter` has the `withNavigationErrorHandler` feature to make this easier.\n         * @see {@link withNavigationErrorHandler}\n         */\n        this.errorHandler = this.options.errorHandler || defaultErrorHandler;\n        /**\n         * A handler for errors thrown by `Router.parseUrl(url)`\n         * when `url` contains an invalid character.\n         * The most common case is a `%` sign\n         * that's not encoded and is not part of a percent encoded sequence.\n         *\n         * @deprecated URI parsing errors should be handled in the `UrlSerializer`.\n         *\n         * @see {@link RouterModule}\n         */\n        this.malformedUriErrorHandler = this.options.malformedUriErrorHandler || defaultMalformedUriErrorHandler;\n        /**\n         * True if at least one navigation event has occurred,\n         * false otherwise.\n         */\n        this.navigated = false;\n        this.lastSuccessfulId = -1;\n        /**\n         * A strategy for extracting and merging URLs.\n         * Used for AngularJS to Angular migrations.\n         *\n         * @deprecated Configure using `providers` instead:\n         *   `{provide: UrlHandlingStrategy, useClass: MyStrategy}`.\n         */\n        this.urlHandlingStrategy = inject(UrlHandlingStrategy);\n        /**\n         * A strategy for re-using routes.\n         *\n         * @deprecated Configure using `providers` instead:\n         *   `{provide: RouteReuseStrategy, useClass: MyStrategy}`.\n         */\n        this.routeReuseStrategy = inject(RouteReuseStrategy);\n        /**\n         * A strategy for setting the title based on the `routerState`.\n         *\n         * @deprecated Configure using `providers` instead:\n         *   `{provide: TitleStrategy, useClass: MyStrategy}`.\n         */\n        this.titleStrategy = inject(TitleStrategy);\n        /**\n         * How to handle a navigation request to the current URL.\n         *\n         *\n         * @deprecated Configure this through `provideRouter` or `RouterModule.forRoot` instead.\n         * @see {@link withRouterConfig}\n         * @see {@link provideRouter}\n         * @see {@link RouterModule}\n         */\n        this.onSameUrlNavigation = this.options.onSameUrlNavigation || 'ignore';\n        /**\n         * How to merge parameters, data, resolved data, and title from parent to child\n         * routes. One of:\n         *\n         * - `'emptyOnly'` : Inherit parent parameters, data, and resolved data\n         * for path-less or component-less routes.\n         * - `'always'` : Inherit parent parameters, data, and resolved data\n         * for all child routes.\n         *\n         * @deprecated Configure this through `provideRouter` or `RouterModule.forRoot` instead.\n         * @see {@link withRouterConfig}\n         * @see {@link provideRouter}\n         * @see {@link RouterModule}\n         */\n        this.paramsInheritanceStrategy = this.options.paramsInheritanceStrategy || 'emptyOnly';\n        /**\n         * Determines when the router updates the browser URL.\n         * By default (`\"deferred\"`), updates the browser URL after navigation has finished.\n         * Set to `'eager'` to update the browser URL at the beginning of navigation.\n         * You can choose to update early so that, if navigation fails,\n         * you can show an error message with the URL that failed.\n         *\n         * @deprecated Configure this through `provideRouter` or `RouterModule.forRoot` instead.\n         * @see {@link withRouterConfig}\n         * @see {@link provideRouter}\n         * @see {@link RouterModule}\n         */\n        this.urlUpdateStrategy = this.options.urlUpdateStrategy || 'deferred';\n        /**\n         * Configures how the Router attempts to restore state when a navigation is cancelled.\n         *\n         * 'replace' - Always uses `location.replaceState` to set the browser state to the state of the\n         * router before the navigation started. This means that if the URL of the browser is updated\n         * _before_ the navigation is canceled, the Router will simply replace the item in history rather\n         * than trying to restore to the previous location in the session history. This happens most\n         * frequently with `urlUpdateStrategy: 'eager'` and navigations with the browser back/forward\n         * buttons.\n         *\n         * 'computed' - Will attempt to return to the same index in the session history that corresponds\n         * to the Angular route when the navigation gets cancelled. For example, if the browser back\n         * button is clicked and the navigation is cancelled, the Router will trigger a forward navigation\n         * and vice versa.\n         *\n         * Note: the 'computed' option is incompatible with any `UrlHandlingStrategy` which only\n         * handles a portion of the URL because the history restoration navigates to the previous place in\n         * the browser history rather than simply resetting a portion of the URL.\n         *\n         * The default value is `replace`.\n         *\n         * @deprecated Configure this through `provideRouter` or `RouterModule.forRoot` instead.\n         * @see {@link withRouterConfig}\n         * @see {@link provideRouter}\n         * @see {@link RouterModule}\n         */\n        this.canceledNavigationResolution = this.options.canceledNavigationResolution || 'replace';\n        this.config = inject(ROUTES, { optional: true })?.flat() ?? [];\n        this.navigationTransitions = inject(NavigationTransitions);\n        this.urlSerializer = inject(UrlSerializer);\n        this.location = inject(Location);\n        /**\n         * Indicates whether the application has opted in to binding Router data to component inputs.\n         *\n         * This option is enabled by the `withComponentInputBinding` feature of `provideRouter` or\n         * `bindToComponentInputs` in the `ExtraOptions` of `RouterModule.forRoot`.\n         */\n        this.componentInputBindingEnabled = !!inject(INPUT_BINDER, { optional: true });\n        this.eventsSubscription = new Subscription();\n        this.isNgZoneEnabled = inject(NgZone) instanceof NgZone && NgZone.isInAngularZone();\n        this.resetConfig(this.config);\n        this.currentUrlTree = new UrlTree();\n        this.rawUrlTree = this.currentUrlTree;\n        this.browserUrlTree = this.currentUrlTree;\n        this.routerState = createEmptyState(this.currentUrlTree, null);\n        this.navigationTransitions.setupNavigations(this, this.currentUrlTree, this.routerState)\n            .subscribe(t => {\n            this.lastSuccessfulId = t.id;\n            this.currentPageId = this.browserPageId;\n        }, e => {\n            this.console.warn(`Unhandled Navigation Error: ${e}`);\n        });\n        this.subscribeToNavigationEvents();\n    }\n    subscribeToNavigationEvents() {\n        const subscription = this.navigationTransitions.events.subscribe(e => {\n            try {\n                const { currentTransition } = this.navigationTransitions;\n                if (currentTransition === null) {\n                    if (isPublicRouterEvent(e)) {\n                        this._events.next(e);\n                    }\n                    return;\n                }\n                if (e instanceof NavigationStart) {\n                    // If the source of the navigation is from a browser event, the URL is\n                    // already updated. We already need to sync the internal state.\n                    if (isBrowserTriggeredNavigation(currentTransition.source)) {\n                        this.browserUrlTree = currentTransition.extractedUrl;\n                    }\n                }\n                else if (e instanceof NavigationSkipped) {\n                    this.rawUrlTree = currentTransition.rawUrl;\n                }\n                else if (e instanceof RoutesRecognized) {\n                    if (this.urlUpdateStrategy === 'eager') {\n                        if (!currentTransition.extras.skipLocationChange) {\n                            const rawUrl = this.urlHandlingStrategy.merge(currentTransition.urlAfterRedirects, currentTransition.rawUrl);\n                            this.setBrowserUrl(rawUrl, currentTransition);\n                        }\n                        this.browserUrlTree = currentTransition.urlAfterRedirects;\n                    }\n                }\n                else if (e instanceof BeforeActivateRoutes) {\n                    this.currentUrlTree = currentTransition.urlAfterRedirects;\n                    this.rawUrlTree = this.urlHandlingStrategy.merge(currentTransition.urlAfterRedirects, currentTransition.rawUrl);\n                    this.routerState = currentTransition.targetRouterState;\n                    if (this.urlUpdateStrategy === 'deferred') {\n                        if (!currentTransition.extras.skipLocationChange) {\n                            this.setBrowserUrl(this.rawUrlTree, currentTransition);\n                        }\n                        this.browserUrlTree = currentTransition.urlAfterRedirects;\n                    }\n                }\n                else if (e instanceof NavigationCancel) {\n                    if (e.code !== 0 /* NavigationCancellationCode.Redirect */ &&\n                        e.code !== 1 /* NavigationCancellationCode.SupersededByNewNavigation */) {\n                        // It seems weird that `navigated` is set to `true` when the navigation is rejected,\n                        // however it's how things were written initially. Investigation would need to be done\n                        // to determine if this can be removed.\n                        this.navigated = true;\n                    }\n                    if (e.code === 3 /* NavigationCancellationCode.GuardRejected */ ||\n                        e.code === 2 /* NavigationCancellationCode.NoDataFromResolver */) {\n                        this.restoreHistory(currentTransition);\n                    }\n                }\n                else if (e instanceof RedirectRequest) {\n                    const mergedTree = this.urlHandlingStrategy.merge(e.url, currentTransition.currentRawUrl);\n                    const extras = {\n                        skipLocationChange: currentTransition.extras.skipLocationChange,\n                        // The URL is already updated at this point if we have 'eager' URL\n                        // updates or if the navigation was triggered by the browser (back\n                        // button, URL bar, etc). We want to replace that item in history\n                        // if the navigation is rejected.\n                        replaceUrl: this.urlUpdateStrategy === 'eager' ||\n                            isBrowserTriggeredNavigation(currentTransition.source)\n                    };\n                    this.scheduleNavigation(mergedTree, IMPERATIVE_NAVIGATION, null, extras, {\n                        resolve: currentTransition.resolve,\n                        reject: currentTransition.reject,\n                        promise: currentTransition.promise\n                    });\n                }\n                if (e instanceof NavigationError) {\n                    this.restoreHistory(currentTransition, true);\n                }\n                if (e instanceof NavigationEnd) {\n                    this.navigated = true;\n                }\n                // Note that it's important to have the Router process the events _before_ the event is\n                // pushed through the public observable. This ensures the correct router state is in place\n                // before applications observe the events.\n                if (isPublicRouterEvent(e)) {\n                    this._events.next(e);\n                }\n            }\n            catch (e) {\n                this.navigationTransitions.transitionAbortSubject.next(e);\n            }\n        });\n        this.eventsSubscription.add(subscription);\n    }\n    /** @internal */\n    resetRootComponentType(rootComponentType) {\n        // TODO: vsavkin router 4.0 should make the root component set to null\n        // this will simplify the lifecycle of the router.\n        this.routerState.root.component = rootComponentType;\n        this.navigationTransitions.rootComponentType = rootComponentType;\n    }\n    /**\n     * Sets up the location change listener and performs the initial navigation.\n     */\n    initialNavigation() {\n        this.setUpLocationChangeListener();\n        if (!this.navigationTransitions.hasRequestedNavigation) {\n            const state = this.location.getState();\n            this.navigateToSyncWithBrowser(this.location.path(true), IMPERATIVE_NAVIGATION, state);\n        }\n    }\n    /**\n     * Sets up the location change listener. This listener detects navigations triggered from outside\n     * the Router (the browser back/forward buttons, for example) and schedules a corresponding Router\n     * navigation so that the correct events, guards, etc. are triggered.\n     */\n    setUpLocationChangeListener() {\n        // Don't need to use Zone.wrap any more, because zone.js\n        // already patch onPopState, so location change callback will\n        // run into ngZone\n        if (!this.locationSubscription) {\n            this.locationSubscription = this.location.subscribe(event => {\n                const source = event['type'] === 'popstate' ? 'popstate' : 'hashchange';\n                if (source === 'popstate') {\n                    // The `setTimeout` was added in #12160 and is likely to support Angular/AngularJS\n                    // hybrid apps.\n                    setTimeout(() => {\n                        this.navigateToSyncWithBrowser(event['url'], source, event.state);\n                    }, 0);\n                }\n            });\n        }\n    }\n    /**\n     * Schedules a router navigation to synchronize Router state with the browser state.\n     *\n     * This is done as a response to a popstate event and the initial navigation. These\n     * two scenarios represent times when the browser URL/state has been updated and\n     * the Router needs to respond to ensure its internal state matches.\n     */\n    navigateToSyncWithBrowser(url, source, state) {\n        const extras = { replaceUrl: true };\n        // TODO: restoredState should always include the entire state, regardless\n        // of navigationId. This requires a breaking change to update the type on\n        // NavigationStart’s restoredState, which currently requires navigationId\n        // to always be present. The Router used to only restore history state if\n        // a navigationId was present.\n        // The stored navigationId is used by the RouterScroller to retrieve the scroll\n        // position for the page.\n        const restoredState = state?.navigationId ? state : null;\n        // Separate to NavigationStart.restoredState, we must also restore the state to\n        // history.state and generate a new navigationId, since it will be overwritten\n        if (state) {\n            const stateCopy = { ...state };\n            delete stateCopy.navigationId;\n            delete stateCopy.ɵrouterPageId;\n            if (Object.keys(stateCopy).length !== 0) {\n                extras.state = stateCopy;\n            }\n        }\n        const urlTree = this.parseUrl(url);\n        this.scheduleNavigation(urlTree, source, restoredState, extras);\n    }\n    /** The current URL. */\n    get url() {\n        return this.serializeUrl(this.currentUrlTree);\n    }\n    /**\n     * Returns the current `Navigation` object when the router is navigating,\n     * and `null` when idle.\n     */\n    getCurrentNavigation() {\n        return this.navigationTransitions.currentNavigation;\n    }\n    /**\n     * The `Navigation` object of the most recent navigation to succeed and `null` if there\n     *     has not been a successful navigation yet.\n     */\n    get lastSuccessfulNavigation() {\n        return this.navigationTransitions.lastSuccessfulNavigation;\n    }\n    /**\n     * Resets the route configuration used for navigation and generating links.\n     *\n     * @param config The route array for the new configuration.\n     *\n     * @usageNotes\n     *\n     * ```\n     * router.resetConfig([\n     *  { path: 'team/:id', component: TeamCmp, children: [\n     *    { path: 'simple', component: SimpleCmp },\n     *    { path: 'user/:name', component: UserCmp }\n     *  ]}\n     * ]);\n     * ```\n     */\n    resetConfig(config) {\n        (typeof ngDevMode === 'undefined' || ngDevMode) && validateConfig(config);\n        this.config = config.map(standardizeConfig);\n        this.navigated = false;\n        this.lastSuccessfulId = -1;\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this.dispose();\n    }\n    /** Disposes of the router. */\n    dispose() {\n        this.navigationTransitions.complete();\n        if (this.locationSubscription) {\n            this.locationSubscription.unsubscribe();\n            this.locationSubscription = undefined;\n        }\n        this.disposed = true;\n        this.eventsSubscription.unsubscribe();\n    }\n    /**\n     * Appends URL segments to the current URL tree to create a new URL tree.\n     *\n     * @param commands An array of URL fragments with which to construct the new URL tree.\n     * If the path is static, can be the literal URL string. For a dynamic path, pass an array of path\n     * segments, followed by the parameters for each segment.\n     * The fragments are applied to the current URL tree or the one provided  in the `relativeTo`\n     * property of the options object, if supplied.\n     * @param navigationExtras Options that control the navigation strategy.\n     * @returns The new URL tree.\n     *\n     * @usageNotes\n     *\n     * ```\n     * // create /team/33/user/11\n     * router.createUrlTree(['/team', 33, 'user', 11]);\n     *\n     * // create /team/33;expand=true/user/11\n     * router.createUrlTree(['/team', 33, {expand: true}, 'user', 11]);\n     *\n     * // you can collapse static segments like this (this works only with the first passed-in value):\n     * router.createUrlTree(['/team/33/user', userId]);\n     *\n     * // If the first segment can contain slashes, and you do not want the router to split it,\n     * // you can do the following:\n     * router.createUrlTree([{segmentPath: '/one/two'}]);\n     *\n     * // create /team/33/(user/11//right:chat)\n     * router.createUrlTree(['/team', 33, {outlets: {primary: 'user/11', right: 'chat'}}]);\n     *\n     * // remove the right secondary node\n     * router.createUrlTree(['/team', 33, {outlets: {primary: 'user/11', right: null}}]);\n     *\n     * // assuming the current url is `/team/33/user/11` and the route points to `user/11`\n     *\n     * // navigate to /team/33/user/11/details\n     * router.createUrlTree(['details'], {relativeTo: route});\n     *\n     * // navigate to /team/33/user/22\n     * router.createUrlTree(['../22'], {relativeTo: route});\n     *\n     * // navigate to /team/44/user/22\n     * router.createUrlTree(['../../team/44/user/22'], {relativeTo: route});\n     *\n     * Note that a value of `null` or `undefined` for `relativeTo` indicates that the\n     * tree should be created relative to the root.\n     * ```\n     */\n    createUrlTree(commands, navigationExtras = {}) {\n        const { relativeTo, queryParams, fragment, queryParamsHandling, preserveFragment } = navigationExtras;\n        const f = preserveFragment ? this.currentUrlTree.fragment : fragment;\n        let q = null;\n        switch (queryParamsHandling) {\n            case 'merge':\n                q = { ...this.currentUrlTree.queryParams, ...queryParams };\n                break;\n            case 'preserve':\n                q = this.currentUrlTree.queryParams;\n                break;\n            default:\n                q = queryParams || null;\n        }\n        if (q !== null) {\n            q = this.removeEmptyProps(q);\n        }\n        let relativeToUrlSegmentGroup;\n        try {\n            const relativeToSnapshot = relativeTo ? relativeTo.snapshot : this.routerState.snapshot.root;\n            relativeToUrlSegmentGroup = createSegmentGroupFromRoute(relativeToSnapshot);\n        }\n        catch (e) {\n            // This is strictly for backwards compatibility with tests that create\n            // invalid `ActivatedRoute` mocks.\n            // Note: the difference between having this fallback for invalid `ActivatedRoute` setups and\n            // just throwing is ~500 test failures. Fixing all of those tests by hand is not feasible at\n            // the moment.\n            if (typeof commands[0] !== 'string' || !commands[0].startsWith('/')) {\n                // Navigations that were absolute in the old way of creating UrlTrees\n                // would still work because they wouldn't attempt to match the\n                // segments in the `ActivatedRoute` to the `currentUrlTree` but\n                // instead just replace the root segment with the navigation result.\n                // Non-absolute navigations would fail to apply the commands because\n                // the logic could not find the segment to replace (so they'd act like there were no\n                // commands).\n                commands = [];\n            }\n            relativeToUrlSegmentGroup = this.currentUrlTree.root;\n        }\n        return createUrlTreeFromSegmentGroup(relativeToUrlSegmentGroup, commands, q, f ?? null);\n    }\n    /**\n     * Navigates to a view using an absolute route path.\n     *\n     * @param url An absolute path for a defined route. The function does not apply any delta to the\n     *     current URL.\n     * @param extras An object containing properties that modify the navigation strategy.\n     *\n     * @returns A Promise that resolves to 'true' when navigation succeeds,\n     * to 'false' when navigation fails, or is rejected on error.\n     *\n     * @usageNotes\n     *\n     * The following calls request navigation to an absolute path.\n     *\n     * ```\n     * router.navigateByUrl(\"/team/33/user/11\");\n     *\n     * // Navigate without updating the URL\n     * router.navigateByUrl(\"/team/33/user/11\", { skipLocationChange: true });\n     * ```\n     *\n     * @see [Routing and Navigation guide](guide/router)\n     *\n     */\n    navigateByUrl(url, extras = {\n        skipLocationChange: false\n    }) {\n        if (typeof ngDevMode === 'undefined' || ngDevMode) {\n            if (this.isNgZoneEnabled && !NgZone.isInAngularZone()) {\n                this.console.warn(`Navigation triggered outside Angular zone, did you forget to call 'ngZone.run()'?`);\n            }\n        }\n        const urlTree = isUrlTree(url) ? url : this.parseUrl(url);\n        const mergedTree = this.urlHandlingStrategy.merge(urlTree, this.rawUrlTree);\n        return this.scheduleNavigation(mergedTree, IMPERATIVE_NAVIGATION, null, extras);\n    }\n    /**\n     * Navigate based on the provided array of commands and a starting point.\n     * If no starting route is provided, the navigation is absolute.\n     *\n     * @param commands An array of URL fragments with which to construct the target URL.\n     * If the path is static, can be the literal URL string. For a dynamic path, pass an array of path\n     * segments, followed by the parameters for each segment.\n     * The fragments are applied to the current URL or the one provided  in the `relativeTo` property\n     * of the options object, if supplied.\n     * @param extras An options object that determines how the URL should be constructed or\n     *     interpreted.\n     *\n     * @returns A Promise that resolves to `true` when navigation succeeds, to `false` when navigation\n     *     fails,\n     * or is rejected on error.\n     *\n     * @usageNotes\n     *\n     * The following calls request navigation to a dynamic route path relative to the current URL.\n     *\n     * ```\n     * router.navigate(['team', 33, 'user', 11], {relativeTo: route});\n     *\n     * // Navigate without updating the URL, overriding the default behavior\n     * router.navigate(['team', 33, 'user', 11], {relativeTo: route, skipLocationChange: true});\n     * ```\n     *\n     * @see [Routing and Navigation guide](guide/router)\n     *\n     */\n    navigate(commands, extras = { skipLocationChange: false }) {\n        validateCommands(commands);\n        return this.navigateByUrl(this.createUrlTree(commands, extras), extras);\n    }\n    /** Serializes a `UrlTree` into a string */\n    serializeUrl(url) {\n        return this.urlSerializer.serialize(url);\n    }\n    /** Parses a string into a `UrlTree` */\n    parseUrl(url) {\n        let urlTree;\n        try {\n            urlTree = this.urlSerializer.parse(url);\n        }\n        catch (e) {\n            urlTree = this.malformedUriErrorHandler(e, this.urlSerializer, url);\n        }\n        return urlTree;\n    }\n    isActive(url, matchOptions) {\n        let options;\n        if (matchOptions === true) {\n            options = { ...exactMatchOptions };\n        }\n        else if (matchOptions === false) {\n            options = { ...subsetMatchOptions };\n        }\n        else {\n            options = matchOptions;\n        }\n        if (isUrlTree(url)) {\n            return containsTree(this.currentUrlTree, url, options);\n        }\n        const urlTree = this.parseUrl(url);\n        return containsTree(this.currentUrlTree, urlTree, options);\n    }\n    removeEmptyProps(params) {\n        return Object.keys(params).reduce((result, key) => {\n            const value = params[key];\n            if (value !== null && value !== undefined) {\n                result[key] = value;\n            }\n            return result;\n        }, {});\n    }\n    /** @internal */\n    scheduleNavigation(rawUrl, source, restoredState, extras, priorPromise) {\n        if (this.disposed) {\n            return Promise.resolve(false);\n        }\n        let resolve;\n        let reject;\n        let promise;\n        if (priorPromise) {\n            resolve = priorPromise.resolve;\n            reject = priorPromise.reject;\n            promise = priorPromise.promise;\n        }\n        else {\n            promise = new Promise((res, rej) => {\n                resolve = res;\n                reject = rej;\n            });\n        }\n        // Indicate that the navigation is happening.\n        const taskId = this.pendingTasks.add();\n        afterNextNavigation(this, () => {\n            // Remove pending task in a microtask to allow for cancelled\n            // initial navigations and redirects within the same task.\n            queueMicrotask(() => this.pendingTasks.remove(taskId));\n        });\n        this.navigationTransitions.handleNavigationRequest({\n            source,\n            restoredState,\n            currentUrlTree: this.currentUrlTree,\n            currentRawUrl: this.currentUrlTree,\n            currentBrowserUrl: this.browserUrlTree,\n            rawUrl,\n            extras,\n            resolve,\n            reject,\n            promise,\n            currentSnapshot: this.routerState.snapshot,\n            currentRouterState: this.routerState\n        });\n        // Make sure that the error is propagated even though `processNavigations` catch\n        // handler does not rethrow\n        return promise.catch((e) => {\n            return Promise.reject(e);\n        });\n    }\n    /** @internal */\n    setBrowserUrl(url, transition) {\n        const path = this.urlSerializer.serialize(url);\n        if (this.location.isCurrentPathEqualTo(path) || !!transition.extras.replaceUrl) {\n            // replacements do not update the target page\n            const currentBrowserPageId = this.browserPageId;\n            const state = {\n                ...transition.extras.state,\n                ...this.generateNgRouterState(transition.id, currentBrowserPageId)\n            };\n            this.location.replaceState(path, '', state);\n        }\n        else {\n            const state = {\n                ...transition.extras.state,\n                ...this.generateNgRouterState(transition.id, this.browserPageId + 1)\n            };\n            this.location.go(path, '', state);\n        }\n    }\n    /**\n     * Performs the necessary rollback action to restore the browser URL to the\n     * state before the transition.\n     * @internal\n     */\n    restoreHistory(transition, restoringFromCaughtError = false) {\n        if (this.canceledNavigationResolution === 'computed') {\n            const currentBrowserPageId = this.browserPageId;\n            const targetPagePosition = this.currentPageId - currentBrowserPageId;\n            if (targetPagePosition !== 0) {\n                this.location.historyGo(targetPagePosition);\n            }\n            else if (this.currentUrlTree === this.getCurrentNavigation()?.finalUrl &&\n                targetPagePosition === 0) {\n                // We got to the activation stage (where currentUrlTree is set to the navigation's\n                // finalUrl), but we weren't moving anywhere in history (skipLocationChange or replaceUrl).\n                // We still need to reset the router state back to what it was when the navigation started.\n                this.resetState(transition);\n                // TODO(atscott): resetting the `browserUrlTree` should really be done in `resetState`.\n                // Investigate if this can be done by running TGP.\n                this.browserUrlTree = transition.currentUrlTree;\n                this.resetUrlToCurrentUrlTree();\n            }\n            else {\n                // The browser URL and router state was not updated before the navigation cancelled so\n                // there's no restoration needed.\n            }\n        }\n        else if (this.canceledNavigationResolution === 'replace') {\n            // TODO(atscott): It seems like we should _always_ reset the state here. It would be a no-op\n            // for `deferred` navigations that haven't change the internal state yet because guards\n            // reject. For 'eager' navigations, it seems like we also really should reset the state\n            // because the navigation was cancelled. Investigate if this can be done by running TGP.\n            if (restoringFromCaughtError) {\n                this.resetState(transition);\n            }\n            this.resetUrlToCurrentUrlTree();\n        }\n    }\n    resetState(t) {\n        this.routerState = t.currentRouterState;\n        this.currentUrlTree = t.currentUrlTree;\n        // Note here that we use the urlHandlingStrategy to get the reset `rawUrlTree` because it may be\n        // configured to handle only part of the navigation URL. This means we would only want to reset\n        // the part of the navigation handled by the Angular router rather than the whole URL. In\n        // addition, the URLHandlingStrategy may be configured to specifically preserve parts of the URL\n        // when merging, such as the query params so they are not lost on a refresh.\n        this.rawUrlTree = this.urlHandlingStrategy.merge(this.currentUrlTree, t.rawUrl);\n    }\n    resetUrlToCurrentUrlTree() {\n        this.location.replaceState(this.urlSerializer.serialize(this.rawUrlTree), '', this.generateNgRouterState(this.lastSuccessfulId, this.currentPageId));\n    }\n    generateNgRouterState(navigationId, routerPageId) {\n        if (this.canceledNavigationResolution === 'computed') {\n            return { navigationId, ɵrouterPageId: routerPageId };\n        }\n        return { navigationId };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Router, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Router, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: Router, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return []; } });\nfunction validateCommands(commands) {\n    for (let i = 0; i < commands.length; i++) {\n        const cmd = commands[i];\n        if (cmd == null) {\n            throw new ɵRuntimeError(4008 /* RuntimeErrorCode.NULLISH_COMMAND */, (typeof ngDevMode === 'undefined' || ngDevMode) &&\n                `The requested path contains ${cmd} segment at index ${i}`);\n        }\n    }\n}\nfunction isPublicRouterEvent(e) {\n    return (!(e instanceof BeforeActivateRoutes) && !(e instanceof RedirectRequest));\n}\n\n/**\n * @description\n *\n * When applied to an element in a template, makes that element a link\n * that initiates navigation to a route. Navigation opens one or more routed components\n * in one or more `<router-outlet>` locations on the page.\n *\n * Given a route configuration `[{ path: 'user/:name', component: UserCmp }]`,\n * the following creates a static link to the route:\n * `<a routerLink=\"/user/bob\">link to user component</a>`\n *\n * You can use dynamic values to generate the link.\n * For a dynamic link, pass an array of path segments,\n * followed by the params for each segment.\n * For example, `['/team', teamId, 'user', userName, {details: true}]`\n * generates a link to `/team/11/user/bob;details=true`.\n *\n * Multiple static segments can be merged into one term and combined with dynamic segments.\n * For example, `['/team/11/user', userName, {details: true}]`\n *\n * The input that you provide to the link is treated as a delta to the current URL.\n * For instance, suppose the current URL is `/user/(box//aux:team)`.\n * The link `<a [routerLink]=\"['/user/jim']\">Jim</a>` creates the URL\n * `/user/(jim//aux:team)`.\n * See {@link Router#createUrlTree} for more information.\n *\n * @usageNotes\n *\n * You can use absolute or relative paths in a link, set query parameters,\n * control how parameters are handled, and keep a history of navigation states.\n *\n * ### Relative link paths\n *\n * The first segment name can be prepended with `/`, `./`, or `../`.\n * * If the first segment begins with `/`, the router looks up the route from the root of the\n *   app.\n * * If the first segment begins with `./`, or doesn't begin with a slash, the router\n *   looks in the children of the current activated route.\n * * If the first segment begins with `../`, the router goes up one level in the route tree.\n *\n * ### Setting and handling query params and fragments\n *\n * The following link adds a query parameter and a fragment to the generated URL:\n *\n * ```\n * <a [routerLink]=\"['/user/bob']\" [queryParams]=\"{debug: true}\" fragment=\"education\">\n *   link to user component\n * </a>\n * ```\n * By default, the directive constructs the new URL using the given query parameters.\n * The example generates the link: `/user/bob?debug=true#education`.\n *\n * You can instruct the directive to handle query parameters differently\n * by specifying the `queryParamsHandling` option in the link.\n * Allowed values are:\n *\n *  - `'merge'`: Merge the given `queryParams` into the current query params.\n *  - `'preserve'`: Preserve the current query params.\n *\n * For example:\n *\n * ```\n * <a [routerLink]=\"['/user/bob']\" [queryParams]=\"{debug: true}\" queryParamsHandling=\"merge\">\n *   link to user component\n * </a>\n * ```\n *\n * See {@link UrlCreationOptions#queryParamsHandling}.\n *\n * ### Preserving navigation history\n *\n * You can provide a `state` value to be persisted to the browser's\n * [`History.state` property](https://developer.mozilla.org/en-US/docs/Web/API/History#Properties).\n * For example:\n *\n * ```\n * <a [routerLink]=\"['/user/bob']\" [state]=\"{tracingId: 123}\">\n *   link to user component\n * </a>\n * ```\n *\n * Use {@link Router#getCurrentNavigation} to retrieve a saved\n * navigation-state value. For example, to capture the `tracingId` during the `NavigationStart`\n * event:\n *\n * ```\n * // Get NavigationStart events\n * router.events.pipe(filter(e => e instanceof NavigationStart)).subscribe(e => {\n *   const navigation = router.getCurrentNavigation();\n *   tracingService.trace({id: navigation.extras.state.tracingId});\n * });\n * ```\n *\n * @ngModule RouterModule\n *\n * @publicApi\n */\nclass RouterLink {\n    constructor(router, route, tabIndexAttribute, renderer, el, locationStrategy) {\n        this.router = router;\n        this.route = route;\n        this.tabIndexAttribute = tabIndexAttribute;\n        this.renderer = renderer;\n        this.el = el;\n        this.locationStrategy = locationStrategy;\n        /**\n         * Represents an `href` attribute value applied to a host element,\n         * when a host element is `<a>`. For other tags, the value is `null`.\n         */\n        this.href = null;\n        this.commands = null;\n        /** @internal */\n        this.onChanges = new Subject();\n        /**\n         * Passed to {@link Router#createUrlTree} as part of the\n         * `UrlCreationOptions`.\n         * @see {@link UrlCreationOptions#preserveFragment}\n         * @see {@link Router#createUrlTree}\n         */\n        this.preserveFragment = false;\n        /**\n         * Passed to {@link Router#navigateByUrl} as part of the\n         * `NavigationBehaviorOptions`.\n         * @see {@link NavigationBehaviorOptions#skipLocationChange}\n         * @see {@link Router#navigateByUrl}\n         */\n        this.skipLocationChange = false;\n        /**\n         * Passed to {@link Router#navigateByUrl} as part of the\n         * `NavigationBehaviorOptions`.\n         * @see {@link NavigationBehaviorOptions#replaceUrl}\n         * @see {@link Router#navigateByUrl}\n         */\n        this.replaceUrl = false;\n        const tagName = el.nativeElement.tagName?.toLowerCase();\n        this.isAnchorElement = tagName === 'a' || tagName === 'area';\n        if (this.isAnchorElement) {\n            this.subscription = router.events.subscribe((s) => {\n                if (s instanceof NavigationEnd) {\n                    this.updateHref();\n                }\n            });\n        }\n        else {\n            this.setTabIndexIfNotOnNativeEl('0');\n        }\n    }\n    /**\n     * Modifies the tab index if there was not a tabindex attribute on the element during\n     * instantiation.\n     */\n    setTabIndexIfNotOnNativeEl(newTabIndex) {\n        if (this.tabIndexAttribute != null /* both `null` and `undefined` */ || this.isAnchorElement) {\n            return;\n        }\n        this.applyAttributeValue('tabindex', newTabIndex);\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        if (this.isAnchorElement) {\n            this.updateHref();\n        }\n        // This is subscribed to by `RouterLinkActive` so that it knows to update when there are changes\n        // to the RouterLinks it's tracking.\n        this.onChanges.next(this);\n    }\n    /**\n     * Commands to pass to {@link Router#createUrlTree}.\n     *   - **array**: commands to pass to {@link Router#createUrlTree}.\n     *   - **string**: shorthand for array of commands with just the string, i.e. `['/route']`\n     *   - **null|undefined**: effectively disables the `routerLink`\n     * @see {@link Router#createUrlTree}\n     */\n    set routerLink(commands) {\n        if (commands != null) {\n            this.commands = Array.isArray(commands) ? commands : [commands];\n            this.setTabIndexIfNotOnNativeEl('0');\n        }\n        else {\n            this.commands = null;\n            this.setTabIndexIfNotOnNativeEl(null);\n        }\n    }\n    /** @nodoc */\n    onClick(button, ctrlKey, shiftKey, altKey, metaKey) {\n        if (this.urlTree === null) {\n            return true;\n        }\n        if (this.isAnchorElement) {\n            if (button !== 0 || ctrlKey || shiftKey || altKey || metaKey) {\n                return true;\n            }\n            if (typeof this.target === 'string' && this.target != '_self') {\n                return true;\n            }\n        }\n        const extras = {\n            skipLocationChange: this.skipLocationChange,\n            replaceUrl: this.replaceUrl,\n            state: this.state,\n        };\n        this.router.navigateByUrl(this.urlTree, extras);\n        // Return `false` for `<a>` elements to prevent default action\n        // and cancel the native behavior, since the navigation is handled\n        // by the Router.\n        return !this.isAnchorElement;\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this.subscription?.unsubscribe();\n    }\n    updateHref() {\n        this.href = this.urlTree !== null && this.locationStrategy ?\n            this.locationStrategy?.prepareExternalUrl(this.router.serializeUrl(this.urlTree)) :\n            null;\n        const sanitizedValue = this.href === null ?\n            null :\n            // This class represents a directive that can be added to both `<a>` elements,\n            // as well as other elements. As a result, we can't define security context at\n            // compile time. So the security context is deferred to runtime.\n            // The `ɵɵsanitizeUrlOrResourceUrl` selects the necessary sanitizer function\n            // based on the tag and property names. The logic mimics the one from\n            // `packages/compiler/src/schema/dom_security_schema.ts`, which is used at compile time.\n            //\n            // Note: we should investigate whether we can switch to using `@HostBinding('attr.href')`\n            // instead of applying a value via a renderer, after a final merge of the\n            // `RouterLinkWithHref` directive.\n            ɵɵsanitizeUrlOrResourceUrl(this.href, this.el.nativeElement.tagName.toLowerCase(), 'href');\n        this.applyAttributeValue('href', sanitizedValue);\n    }\n    applyAttributeValue(attrName, attrValue) {\n        const renderer = this.renderer;\n        const nativeElement = this.el.nativeElement;\n        if (attrValue !== null) {\n            renderer.setAttribute(nativeElement, attrName, attrValue);\n        }\n        else {\n            renderer.removeAttribute(nativeElement, attrName);\n        }\n    }\n    get urlTree() {\n        if (this.commands === null) {\n            return null;\n        }\n        return this.router.createUrlTree(this.commands, {\n            // If the `relativeTo` input is not defined, we want to use `this.route` by default.\n            // Otherwise, we should use the value provided by the user in the input.\n            relativeTo: this.relativeTo !== undefined ? this.relativeTo : this.route,\n            queryParams: this.queryParams,\n            fragment: this.fragment,\n            queryParamsHandling: this.queryParamsHandling,\n            preserveFragment: this.preserveFragment,\n        });\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterLink, deps: [{ token: Router }, { token: ActivatedRoute }, { token: 'tabindex', attribute: true }, { token: i0.Renderer2 }, { token: i0.ElementRef }, { token: i3.LocationStrategy }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"16.1.0\", version: \"16.2.12\", type: RouterLink, isStandalone: true, selector: \"[routerLink]\", inputs: { target: \"target\", queryParams: \"queryParams\", fragment: \"fragment\", queryParamsHandling: \"queryParamsHandling\", state: \"state\", relativeTo: \"relativeTo\", preserveFragment: [\"preserveFragment\", \"preserveFragment\", booleanAttribute], skipLocationChange: [\"skipLocationChange\", \"skipLocationChange\", booleanAttribute], replaceUrl: [\"replaceUrl\", \"replaceUrl\", booleanAttribute], routerLink: \"routerLink\" }, host: { listeners: { \"click\": \"onClick($event.button,$event.ctrlKey,$event.shiftKey,$event.altKey,$event.metaKey)\" }, properties: { \"attr.target\": \"this.target\" } }, usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterLink, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[routerLink]',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: Router }, { type: ActivatedRoute }, { type: undefined, decorators: [{\n                    type: Attribute,\n                    args: ['tabindex']\n                }] }, { type: i0.Renderer2 }, { type: i0.ElementRef }, { type: i3.LocationStrategy }]; }, propDecorators: { target: [{\n                type: HostBinding,\n                args: ['attr.target']\n            }, {\n                type: Input\n            }], queryParams: [{\n                type: Input\n            }], fragment: [{\n                type: Input\n            }], queryParamsHandling: [{\n                type: Input\n            }], state: [{\n                type: Input\n            }], relativeTo: [{\n                type: Input\n            }], preserveFragment: [{\n                type: Input,\n                args: [{ transform: booleanAttribute }]\n            }], skipLocationChange: [{\n                type: Input,\n                args: [{ transform: booleanAttribute }]\n            }], replaceUrl: [{\n                type: Input,\n                args: [{ transform: booleanAttribute }]\n            }], routerLink: [{\n                type: Input\n            }], onClick: [{\n                type: HostListener,\n                args: ['click',\n                    ['$event.button', '$event.ctrlKey', '$event.shiftKey', '$event.altKey', '$event.metaKey']]\n            }] } });\n\n/**\n *\n * @description\n *\n * Tracks whether the linked route of an element is currently active, and allows you\n * to specify one or more CSS classes to add to the element when the linked route\n * is active.\n *\n * Use this directive to create a visual distinction for elements associated with an active route.\n * For example, the following code highlights the word \"Bob\" when the router\n * activates the associated route:\n *\n * ```\n * <a routerLink=\"/user/bob\" routerLinkActive=\"active-link\">Bob</a>\n * ```\n *\n * Whenever the URL is either '/user' or '/user/bob', the \"active-link\" class is\n * added to the anchor tag. If the URL changes, the class is removed.\n *\n * You can set more than one class using a space-separated string or an array.\n * For example:\n *\n * ```\n * <a routerLink=\"/user/bob\" routerLinkActive=\"class1 class2\">Bob</a>\n * <a routerLink=\"/user/bob\" [routerLinkActive]=\"['class1', 'class2']\">Bob</a>\n * ```\n *\n * To add the classes only when the URL matches the link exactly, add the option `exact: true`:\n *\n * ```\n * <a routerLink=\"/user/bob\" routerLinkActive=\"active-link\" [routerLinkActiveOptions]=\"{exact:\n * true}\">Bob</a>\n * ```\n *\n * To directly check the `isActive` status of the link, assign the `RouterLinkActive`\n * instance to a template variable.\n * For example, the following checks the status without assigning any CSS classes:\n *\n * ```\n * <a routerLink=\"/user/bob\" routerLinkActive #rla=\"routerLinkActive\">\n *   Bob {{ rla.isActive ? '(already open)' : ''}}\n * </a>\n * ```\n *\n * You can apply the `RouterLinkActive` directive to an ancestor of linked elements.\n * For example, the following sets the active-link class on the `<div>`  parent tag\n * when the URL is either '/user/jim' or '/user/bob'.\n *\n * ```\n * <div routerLinkActive=\"active-link\" [routerLinkActiveOptions]=\"{exact: true}\">\n *   <a routerLink=\"/user/jim\">Jim</a>\n *   <a routerLink=\"/user/bob\">Bob</a>\n * </div>\n * ```\n *\n * The `RouterLinkActive` directive can also be used to set the aria-current attribute\n * to provide an alternative distinction for active elements to visually impaired users.\n *\n * For example, the following code adds the 'active' class to the Home Page link when it is\n * indeed active and in such case also sets its aria-current attribute to 'page':\n *\n * ```\n * <a routerLink=\"/\" routerLinkActive=\"active\" ariaCurrentWhenActive=\"page\">Home Page</a>\n * ```\n *\n * @ngModule RouterModule\n *\n * @publicApi\n */\nclass RouterLinkActive {\n    get isActive() {\n        return this._isActive;\n    }\n    constructor(router, element, renderer, cdr, link) {\n        this.router = router;\n        this.element = element;\n        this.renderer = renderer;\n        this.cdr = cdr;\n        this.link = link;\n        this.classes = [];\n        this._isActive = false;\n        /**\n         * Options to configure how to determine if the router link is active.\n         *\n         * These options are passed to the `Router.isActive()` function.\n         *\n         * @see {@link Router#isActive}\n         */\n        this.routerLinkActiveOptions = { exact: false };\n        /**\n         *\n         * You can use the output `isActiveChange` to get notified each time the link becomes\n         * active or inactive.\n         *\n         * Emits:\n         * true  -> Route is active\n         * false -> Route is inactive\n         *\n         * ```\n         * <a\n         *  routerLink=\"/user/bob\"\n         *  routerLinkActive=\"active-link\"\n         *  (isActiveChange)=\"this.onRouterLinkActive($event)\">Bob</a>\n         * ```\n         */\n        this.isActiveChange = new EventEmitter();\n        this.routerEventsSubscription = router.events.subscribe((s) => {\n            if (s instanceof NavigationEnd) {\n                this.update();\n            }\n        });\n    }\n    /** @nodoc */\n    ngAfterContentInit() {\n        // `of(null)` is used to force subscribe body to execute once immediately (like `startWith`).\n        of(this.links.changes, of(null)).pipe(mergeAll()).subscribe(_ => {\n            this.update();\n            this.subscribeToEachLinkOnChanges();\n        });\n    }\n    subscribeToEachLinkOnChanges() {\n        this.linkInputChangesSubscription?.unsubscribe();\n        const allLinkChanges = [...this.links.toArray(), this.link]\n            .filter((link) => !!link)\n            .map(link => link.onChanges);\n        this.linkInputChangesSubscription = from(allLinkChanges).pipe(mergeAll()).subscribe(link => {\n            if (this._isActive !== this.isLinkActive(this.router)(link)) {\n                this.update();\n            }\n        });\n    }\n    set routerLinkActive(data) {\n        const classes = Array.isArray(data) ? data : data.split(' ');\n        this.classes = classes.filter(c => !!c);\n    }\n    /** @nodoc */\n    ngOnChanges(changes) {\n        this.update();\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this.routerEventsSubscription.unsubscribe();\n        this.linkInputChangesSubscription?.unsubscribe();\n    }\n    update() {\n        if (!this.links || !this.router.navigated)\n            return;\n        queueMicrotask(() => {\n            const hasActiveLinks = this.hasActiveLinks();\n            if (this._isActive !== hasActiveLinks) {\n                this._isActive = hasActiveLinks;\n                this.cdr.markForCheck();\n                this.classes.forEach((c) => {\n                    if (hasActiveLinks) {\n                        this.renderer.addClass(this.element.nativeElement, c);\n                    }\n                    else {\n                        this.renderer.removeClass(this.element.nativeElement, c);\n                    }\n                });\n                if (hasActiveLinks && this.ariaCurrentWhenActive !== undefined) {\n                    this.renderer.setAttribute(this.element.nativeElement, 'aria-current', this.ariaCurrentWhenActive.toString());\n                }\n                else {\n                    this.renderer.removeAttribute(this.element.nativeElement, 'aria-current');\n                }\n                // Emit on isActiveChange after classes are updated\n                this.isActiveChange.emit(hasActiveLinks);\n            }\n        });\n    }\n    isLinkActive(router) {\n        const options = isActiveMatchOptions(this.routerLinkActiveOptions) ?\n            this.routerLinkActiveOptions :\n            // While the types should disallow `undefined` here, it's possible without strict inputs\n            (this.routerLinkActiveOptions.exact || false);\n        return (link) => link.urlTree ? router.isActive(link.urlTree, options) : false;\n    }\n    hasActiveLinks() {\n        const isActiveCheckFn = this.isLinkActive(this.router);\n        return this.link && isActiveCheckFn(this.link) || this.links.some(isActiveCheckFn);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterLinkActive, deps: [{ token: Router }, { token: i0.ElementRef }, { token: i0.Renderer2 }, { token: i0.ChangeDetectorRef }, { token: RouterLink, optional: true }], target: i0.ɵɵFactoryTarget.Directive }); }\n    static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: \"14.0.0\", version: \"16.2.12\", type: RouterLinkActive, isStandalone: true, selector: \"[routerLinkActive]\", inputs: { routerLinkActiveOptions: \"routerLinkActiveOptions\", ariaCurrentWhenActive: \"ariaCurrentWhenActive\", routerLinkActive: \"routerLinkActive\" }, outputs: { isActiveChange: \"isActiveChange\" }, queries: [{ propertyName: \"links\", predicate: RouterLink, descendants: true }], exportAs: [\"routerLinkActive\"], usesOnChanges: true, ngImport: i0 }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterLinkActive, decorators: [{\n            type: Directive,\n            args: [{\n                    selector: '[routerLinkActive]',\n                    exportAs: 'routerLinkActive',\n                    standalone: true,\n                }]\n        }], ctorParameters: function () { return [{ type: Router }, { type: i0.ElementRef }, { type: i0.Renderer2 }, { type: i0.ChangeDetectorRef }, { type: RouterLink, decorators: [{\n                    type: Optional\n                }] }]; }, propDecorators: { links: [{\n                type: ContentChildren,\n                args: [RouterLink, { descendants: true }]\n            }], routerLinkActiveOptions: [{\n                type: Input\n            }], ariaCurrentWhenActive: [{\n                type: Input\n            }], isActiveChange: [{\n                type: Output\n            }], routerLinkActive: [{\n                type: Input\n            }] } });\n/**\n * Use instead of `'paths' in options` to be compatible with property renaming\n */\nfunction isActiveMatchOptions(options) {\n    return !!options.paths;\n}\n\n/**\n * @description\n *\n * Provides a preloading strategy.\n *\n * @publicApi\n */\nclass PreloadingStrategy {\n}\n/**\n * @description\n *\n * Provides a preloading strategy that preloads all modules as quickly as possible.\n *\n * ```\n * RouterModule.forRoot(ROUTES, {preloadingStrategy: PreloadAllModules})\n * ```\n *\n * @publicApi\n */\nclass PreloadAllModules {\n    preload(route, fn) {\n        return fn().pipe(catchError(() => of(null)));\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreloadAllModules, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreloadAllModules, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: PreloadAllModules, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n/**\n * @description\n *\n * Provides a preloading strategy that does not preload any modules.\n *\n * This strategy is enabled by default.\n *\n * @publicApi\n */\nclass NoPreloading {\n    preload(route, fn) {\n        return of(null);\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NoPreloading, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NoPreloading, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: NoPreloading, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }] });\n/**\n * The preloader optimistically loads all router configurations to\n * make navigations into lazily-loaded sections of the application faster.\n *\n * The preloader runs in the background. When the router bootstraps, the preloader\n * starts listening to all navigation events. After every such event, the preloader\n * will check if any configurations can be loaded lazily.\n *\n * If a route is protected by `canLoad` guards, the preloaded will not load it.\n *\n * @publicApi\n */\nclass RouterPreloader {\n    constructor(router, compiler, injector, preloadingStrategy, loader) {\n        this.router = router;\n        this.injector = injector;\n        this.preloadingStrategy = preloadingStrategy;\n        this.loader = loader;\n    }\n    setUpPreloading() {\n        this.subscription =\n            this.router.events\n                .pipe(filter((e) => e instanceof NavigationEnd), concatMap(() => this.preload()))\n                .subscribe(() => { });\n    }\n    preload() {\n        return this.processRoutes(this.injector, this.router.config);\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        if (this.subscription) {\n            this.subscription.unsubscribe();\n        }\n    }\n    processRoutes(injector, routes) {\n        const res = [];\n        for (const route of routes) {\n            if (route.providers && !route._injector) {\n                route._injector =\n                    createEnvironmentInjector(route.providers, injector, `Route: ${route.path}`);\n            }\n            const injectorForCurrentRoute = route._injector ?? injector;\n            const injectorForChildren = route._loadedInjector ?? injectorForCurrentRoute;\n            // Note that `canLoad` is only checked as a condition that prevents `loadChildren` and not\n            // `loadComponent`. `canLoad` guards only block loading of child routes by design. This\n            // happens as a consequence of needing to descend into children for route matching immediately\n            // while component loading is deferred until route activation. Because `canLoad` guards can\n            // have side effects, we cannot execute them here so we instead skip preloading altogether\n            // when present. Lastly, it remains to be decided whether `canLoad` should behave this way\n            // at all. Code splitting and lazy loading is separate from client-side authorization checks\n            // and should not be used as a security measure to prevent loading of code.\n            if ((route.loadChildren && !route._loadedRoutes && route.canLoad === undefined) ||\n                (route.loadComponent && !route._loadedComponent)) {\n                res.push(this.preloadConfig(injectorForCurrentRoute, route));\n            }\n            if (route.children || route._loadedRoutes) {\n                res.push(this.processRoutes(injectorForChildren, (route.children ?? route._loadedRoutes)));\n            }\n        }\n        return from(res).pipe(mergeAll());\n    }\n    preloadConfig(injector, route) {\n        return this.preloadingStrategy.preload(route, () => {\n            let loadedChildren$;\n            if (route.loadChildren && route.canLoad === undefined) {\n                loadedChildren$ = this.loader.loadChildren(injector, route);\n            }\n            else {\n                loadedChildren$ = of(null);\n            }\n            const recursiveLoadChildren$ = loadedChildren$.pipe(mergeMap((config) => {\n                if (config === null) {\n                    return of(void 0);\n                }\n                route._loadedRoutes = config.routes;\n                route._loadedInjector = config.injector;\n                // If the loaded config was a module, use that as the module/module injector going\n                // forward. Otherwise, continue using the current module/module injector.\n                return this.processRoutes(config.injector ?? injector, config.routes);\n            }));\n            if (route.loadComponent && !route._loadedComponent) {\n                const loadComponent$ = this.loader.loadComponent(route);\n                return from([recursiveLoadChildren$, loadComponent$]).pipe(mergeAll());\n            }\n            else {\n                return recursiveLoadChildren$;\n            }\n        });\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterPreloader, deps: [{ token: Router }, { token: i0.Compiler }, { token: i0.EnvironmentInjector }, { token: PreloadingStrategy }, { token: RouterConfigLoader }], target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterPreloader, providedIn: 'root' }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterPreloader, decorators: [{\n            type: Injectable,\n            args: [{ providedIn: 'root' }]\n        }], ctorParameters: function () { return [{ type: Router }, { type: i0.Compiler }, { type: i0.EnvironmentInjector }, { type: PreloadingStrategy }, { type: RouterConfigLoader }]; } });\n\nconst ROUTER_SCROLLER = new InjectionToken('');\nclass RouterScroller {\n    /** @nodoc */\n    constructor(urlSerializer, transitions, viewportScroller, zone, options = {}) {\n        this.urlSerializer = urlSerializer;\n        this.transitions = transitions;\n        this.viewportScroller = viewportScroller;\n        this.zone = zone;\n        this.options = options;\n        this.lastId = 0;\n        this.lastSource = 'imperative';\n        this.restoredId = 0;\n        this.store = {};\n        // Default both options to 'disabled'\n        options.scrollPositionRestoration = options.scrollPositionRestoration || 'disabled';\n        options.anchorScrolling = options.anchorScrolling || 'disabled';\n    }\n    init() {\n        // we want to disable the automatic scrolling because having two places\n        // responsible for scrolling results race conditions, especially given\n        // that browser don't implement this behavior consistently\n        if (this.options.scrollPositionRestoration !== 'disabled') {\n            this.viewportScroller.setHistoryScrollRestoration('manual');\n        }\n        this.routerEventsSubscription = this.createScrollEvents();\n        this.scrollEventsSubscription = this.consumeScrollEvents();\n    }\n    createScrollEvents() {\n        return this.transitions.events.subscribe(e => {\n            if (e instanceof NavigationStart) {\n                // store the scroll position of the current stable navigations.\n                this.store[this.lastId] = this.viewportScroller.getScrollPosition();\n                this.lastSource = e.navigationTrigger;\n                this.restoredId = e.restoredState ? e.restoredState.navigationId : 0;\n            }\n            else if (e instanceof NavigationEnd) {\n                this.lastId = e.id;\n                this.scheduleScrollEvent(e, this.urlSerializer.parse(e.urlAfterRedirects).fragment);\n            }\n            else if (e instanceof NavigationSkipped &&\n                e.code === 0 /* NavigationSkippedCode.IgnoredSameUrlNavigation */) {\n                this.lastSource = undefined;\n                this.restoredId = 0;\n                this.scheduleScrollEvent(e, this.urlSerializer.parse(e.url).fragment);\n            }\n        });\n    }\n    consumeScrollEvents() {\n        return this.transitions.events.subscribe(e => {\n            if (!(e instanceof Scroll))\n                return;\n            // a popstate event. The pop state event will always ignore anchor scrolling.\n            if (e.position) {\n                if (this.options.scrollPositionRestoration === 'top') {\n                    this.viewportScroller.scrollToPosition([0, 0]);\n                }\n                else if (this.options.scrollPositionRestoration === 'enabled') {\n                    this.viewportScroller.scrollToPosition(e.position);\n                }\n                // imperative navigation \"forward\"\n            }\n            else {\n                if (e.anchor && this.options.anchorScrolling === 'enabled') {\n                    this.viewportScroller.scrollToAnchor(e.anchor);\n                }\n                else if (this.options.scrollPositionRestoration !== 'disabled') {\n                    this.viewportScroller.scrollToPosition([0, 0]);\n                }\n            }\n        });\n    }\n    scheduleScrollEvent(routerEvent, anchor) {\n        this.zone.runOutsideAngular(() => {\n            // The scroll event needs to be delayed until after change detection. Otherwise, we may\n            // attempt to restore the scroll position before the router outlet has fully rendered the\n            // component by executing its update block of the template function.\n            setTimeout(() => {\n                this.zone.run(() => {\n                    this.transitions.events.next(new Scroll(routerEvent, this.lastSource === 'popstate' ? this.store[this.restoredId] : null, anchor));\n                });\n            }, 0);\n        });\n    }\n    /** @nodoc */\n    ngOnDestroy() {\n        this.routerEventsSubscription?.unsubscribe();\n        this.scrollEventsSubscription?.unsubscribe();\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterScroller, deps: \"invalid\", target: i0.ɵɵFactoryTarget.Injectable }); }\n    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterScroller }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterScroller, decorators: [{\n            type: Injectable\n        }], ctorParameters: function () { return [{ type: UrlSerializer }, { type: NavigationTransitions }, { type: i3.ViewportScroller }, { type: i0.NgZone }, { type: undefined }]; } });\n\n/**\n * Sets up providers necessary to enable `Router` functionality for the application.\n * Allows to configure a set of routes as well as extra features that should be enabled.\n *\n * @usageNotes\n *\n * Basic example of how you can add a Router to your application:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent, {\n *   providers: [provideRouter(appRoutes)]\n * });\n * ```\n *\n * You can also enable optional features in the Router by adding functions from the `RouterFeatures`\n * type:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes,\n *         withDebugTracing(),\n *         withRouterConfig({paramsInheritanceStrategy: 'always'}))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link RouterFeatures}\n *\n * @publicApi\n * @param routes A set of `Route`s to use for the application routing table.\n * @param features Optional features to configure additional router behaviors.\n * @returns A set of providers to setup a Router.\n */\nfunction provideRouter(routes, ...features) {\n    return makeEnvironmentProviders([\n        { provide: ROUTES, multi: true, useValue: routes },\n        (typeof ngDevMode === 'undefined' || ngDevMode) ?\n            { provide: ROUTER_IS_PROVIDED, useValue: true } :\n            [],\n        { provide: ActivatedRoute, useFactory: rootRoute, deps: [Router] },\n        { provide: APP_BOOTSTRAP_LISTENER, multi: true, useFactory: getBootstrapListener },\n        features.map(feature => feature.ɵproviders),\n    ]);\n}\nfunction rootRoute(router) {\n    return router.routerState.root;\n}\n/**\n * Helper function to create an object that represents a Router feature.\n */\nfunction routerFeature(kind, providers) {\n    return { ɵkind: kind, ɵproviders: providers };\n}\n/**\n * An Injection token used to indicate whether `provideRouter` or `RouterModule.forRoot` was ever\n * called.\n */\nconst ROUTER_IS_PROVIDED = new InjectionToken('', { providedIn: 'root', factory: () => false });\nconst routerIsProvidedDevModeCheck = {\n    provide: ENVIRONMENT_INITIALIZER,\n    multi: true,\n    useFactory() {\n        return () => {\n            if (!inject(ROUTER_IS_PROVIDED)) {\n                console.warn('`provideRoutes` was called without `provideRouter` or `RouterModule.forRoot`. ' +\n                    'This is likely a mistake.');\n            }\n        };\n    }\n};\n/**\n * Registers a [DI provider](guide/glossary#provider) for a set of routes.\n * @param routes The route configuration to provide.\n *\n * @usageNotes\n *\n * ```\n * @NgModule({\n *   providers: [provideRoutes(ROUTES)]\n * })\n * class LazyLoadedChildModule {}\n * ```\n *\n * @deprecated If necessary, provide routes using the `ROUTES` `InjectionToken`.\n * @see {@link ROUTES}\n * @publicApi\n */\nfunction provideRoutes(routes) {\n    return [\n        { provide: ROUTES, multi: true, useValue: routes },\n        (typeof ngDevMode === 'undefined' || ngDevMode) ? routerIsProvidedDevModeCheck : [],\n    ];\n}\n/**\n * Enables customizable scrolling behavior for router navigations.\n *\n * @usageNotes\n *\n * Basic example of how you can enable scrolling feature:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withInMemoryScrolling())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n * @see {@link ViewportScroller}\n *\n * @publicApi\n * @param options Set of configuration parameters to customize scrolling behavior, see\n *     `InMemoryScrollingOptions` for additional information.\n * @returns A set of providers for use with `provideRouter`.\n */\nfunction withInMemoryScrolling(options = {}) {\n    const providers = [{\n            provide: ROUTER_SCROLLER,\n            useFactory: () => {\n                const viewportScroller = inject(ViewportScroller);\n                const zone = inject(NgZone);\n                const transitions = inject(NavigationTransitions);\n                const urlSerializer = inject(UrlSerializer);\n                return new RouterScroller(urlSerializer, transitions, viewportScroller, zone, options);\n            },\n        }];\n    return routerFeature(4 /* RouterFeatureKind.InMemoryScrollingFeature */, providers);\n}\nfunction getBootstrapListener() {\n    const injector = inject(Injector);\n    return (bootstrappedComponentRef) => {\n        const ref = injector.get(ApplicationRef);\n        if (bootstrappedComponentRef !== ref.components[0]) {\n            return;\n        }\n        const router = injector.get(Router);\n        const bootstrapDone = injector.get(BOOTSTRAP_DONE);\n        if (injector.get(INITIAL_NAVIGATION) === 1 /* InitialNavigation.EnabledNonBlocking */) {\n            router.initialNavigation();\n        }\n        injector.get(ROUTER_PRELOADER, null, InjectFlags.Optional)?.setUpPreloading();\n        injector.get(ROUTER_SCROLLER, null, InjectFlags.Optional)?.init();\n        router.resetRootComponentType(ref.componentTypes[0]);\n        if (!bootstrapDone.closed) {\n            bootstrapDone.next();\n            bootstrapDone.complete();\n            bootstrapDone.unsubscribe();\n        }\n    };\n}\n/**\n * A subject used to indicate that the bootstrapping phase is done. When initial navigation is\n * `enabledBlocking`, the first navigation waits until bootstrapping is finished before continuing\n * to the activation phase.\n */\nconst BOOTSTRAP_DONE = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'bootstrap done indicator' : '', {\n    factory: () => {\n        return new Subject();\n    }\n});\nconst INITIAL_NAVIGATION = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'initial navigation' : '', { providedIn: 'root', factory: () => 1 /* InitialNavigation.EnabledNonBlocking */ });\n/**\n * Configures initial navigation to start before the root component is created.\n *\n * The bootstrap is blocked until the initial navigation is complete. This value is required for\n * [server-side rendering](guide/universal) to work.\n *\n * @usageNotes\n *\n * Basic example of how you can enable this navigation behavior:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withEnabledBlockingInitialNavigation())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @publicApi\n * @returns A set of providers for use with `provideRouter`.\n */\nfunction withEnabledBlockingInitialNavigation() {\n    const providers = [\n        { provide: INITIAL_NAVIGATION, useValue: 0 /* InitialNavigation.EnabledBlocking */ },\n        {\n            provide: APP_INITIALIZER,\n            multi: true,\n            deps: [Injector],\n            useFactory: (injector) => {\n                const locationInitialized = injector.get(LOCATION_INITIALIZED, Promise.resolve());\n                return () => {\n                    return locationInitialized.then(() => {\n                        return new Promise(resolve => {\n                            const router = injector.get(Router);\n                            const bootstrapDone = injector.get(BOOTSTRAP_DONE);\n                            afterNextNavigation(router, () => {\n                                // Unblock APP_INITIALIZER in case the initial navigation was canceled or errored\n                                // without a redirect.\n                                resolve(true);\n                            });\n                            injector.get(NavigationTransitions).afterPreactivation = () => {\n                                // Unblock APP_INITIALIZER once we get to `afterPreactivation`. At this point, we\n                                // assume activation will complete successfully (even though this is not\n                                // guaranteed).\n                                resolve(true);\n                                return bootstrapDone.closed ? of(void 0) : bootstrapDone;\n                            };\n                            router.initialNavigation();\n                        });\n                    });\n                };\n            }\n        },\n    ];\n    return routerFeature(2 /* RouterFeatureKind.EnabledBlockingInitialNavigationFeature */, providers);\n}\n/**\n * Disables initial navigation.\n *\n * Use if there is a reason to have more control over when the router starts its initial navigation\n * due to some complex initialization logic.\n *\n * @usageNotes\n *\n * Basic example of how you can disable initial navigation:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withDisabledInitialNavigation())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nfunction withDisabledInitialNavigation() {\n    const providers = [\n        {\n            provide: APP_INITIALIZER,\n            multi: true,\n            useFactory: () => {\n                const router = inject(Router);\n                return () => {\n                    router.setUpLocationChangeListener();\n                };\n            }\n        },\n        { provide: INITIAL_NAVIGATION, useValue: 2 /* InitialNavigation.Disabled */ }\n    ];\n    return routerFeature(3 /* RouterFeatureKind.DisabledInitialNavigationFeature */, providers);\n}\n/**\n * Enables logging of all internal navigation events to the console.\n * Extra logging might be useful for debugging purposes to inspect Router event sequence.\n *\n * @usageNotes\n *\n * Basic example of how you can enable debug tracing:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withDebugTracing())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nfunction withDebugTracing() {\n    let providers = [];\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        providers = [{\n                provide: ENVIRONMENT_INITIALIZER,\n                multi: true,\n                useFactory: () => {\n                    const router = inject(Router);\n                    return () => router.events.subscribe((e) => {\n                        // tslint:disable:no-console\n                        console.group?.(`Router Event: ${e.constructor.name}`);\n                        console.log(stringifyEvent(e));\n                        console.log(e);\n                        console.groupEnd?.();\n                        // tslint:enable:no-console\n                    });\n                }\n            }];\n    }\n    else {\n        providers = [];\n    }\n    return routerFeature(1 /* RouterFeatureKind.DebugTracingFeature */, providers);\n}\nconst ROUTER_PRELOADER = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'router preloader' : '');\n/**\n * Allows to configure a preloading strategy to use. The strategy is configured by providing a\n * reference to a class that implements a `PreloadingStrategy`.\n *\n * @usageNotes\n *\n * Basic example of how you can configure preloading:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withPreloading(PreloadAllModules))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @param preloadingStrategy A reference to a class that implements a `PreloadingStrategy` that\n *     should be used.\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nfunction withPreloading(preloadingStrategy) {\n    const providers = [\n        { provide: ROUTER_PRELOADER, useExisting: RouterPreloader },\n        { provide: PreloadingStrategy, useExisting: preloadingStrategy },\n    ];\n    return routerFeature(0 /* RouterFeatureKind.PreloadingFeature */, providers);\n}\n/**\n * Allows to provide extra parameters to configure Router.\n *\n * @usageNotes\n *\n * Basic example of how you can provide extra configuration options:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withRouterConfig({\n *          onSameUrlNavigation: 'reload'\n *       }))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n *\n * @param options A set of parameters to configure Router, see `RouterConfigOptions` for\n *     additional information.\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nfunction withRouterConfig(options) {\n    const providers = [\n        { provide: ROUTER_CONFIGURATION, useValue: options },\n    ];\n    return routerFeature(5 /* RouterFeatureKind.RouterConfigurationFeature */, providers);\n}\n/**\n * Provides the location strategy that uses the URL fragment instead of the history API.\n *\n * @usageNotes\n *\n * Basic example of how you can use the hash location option:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withHashLocation())\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link provideRouter}\n * @see {@link HashLocationStrategy}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nfunction withHashLocation() {\n    const providers = [\n        { provide: LocationStrategy, useClass: HashLocationStrategy },\n    ];\n    return routerFeature(5 /* RouterFeatureKind.RouterConfigurationFeature */, providers);\n}\n/**\n * Subscribes to the Router's navigation events and calls the given function when a\n * `NavigationError` happens.\n *\n * This function is run inside application's [injection context](guide/dependency-injection-context)\n * so you can use the [`inject`](api/core/inject) function.\n *\n * @usageNotes\n *\n * Basic example of how you can use the error handler option:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withNavigationErrorHandler((e: NavigationError) =>\n * inject(MyErrorTracker).trackError(e)))\n *     ]\n *   }\n * );\n * ```\n *\n * @see {@link NavigationError}\n * @see {@link core/inject}\n * @see {@link runInInjectionContext}\n *\n * @returns A set of providers for use with `provideRouter`.\n *\n * @publicApi\n */\nfunction withNavigationErrorHandler(fn) {\n    const providers = [{\n            provide: ENVIRONMENT_INITIALIZER,\n            multi: true,\n            useValue: () => {\n                const injector = inject(EnvironmentInjector);\n                inject(Router).events.subscribe((e) => {\n                    if (e instanceof NavigationError) {\n                        injector.runInContext(() => fn(e));\n                    }\n                });\n            }\n        }];\n    return routerFeature(7 /* RouterFeatureKind.NavigationErrorHandlerFeature */, providers);\n}\n/**\n * Enables binding information from the `Router` state directly to the inputs of the component in\n * `Route` configurations.\n *\n * @usageNotes\n *\n * Basic example of how you can enable the feature:\n * ```\n * const appRoutes: Routes = [];\n * bootstrapApplication(AppComponent,\n *   {\n *     providers: [\n *       provideRouter(appRoutes, withComponentInputBinding())\n *     ]\n *   }\n * );\n * ```\n *\n * @returns A set of providers for use with `provideRouter`.\n */\nfunction withComponentInputBinding() {\n    const providers = [\n        RoutedComponentInputBinder,\n        { provide: INPUT_BINDER, useExisting: RoutedComponentInputBinder },\n    ];\n    return routerFeature(8 /* RouterFeatureKind.ComponentInputBindingFeature */, providers);\n}\n\n/**\n * The directives defined in the `RouterModule`.\n */\nconst ROUTER_DIRECTIVES = [RouterOutlet, RouterLink, RouterLinkActive, ɵEmptyOutletComponent];\n/**\n * @docsNotRequired\n */\nconst ROUTER_FORROOT_GUARD = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'router duplicate forRoot guard' :\n    'ROUTER_FORROOT_GUARD');\n// TODO(atscott): All of these except `ActivatedRoute` are `providedIn: 'root'`. They are only kept\n// here to avoid a breaking change whereby the provider order matters based on where the\n// `RouterModule`/`RouterTestingModule` is imported. These can/should be removed as a \"breaking\"\n// change in a major version.\nconst ROUTER_PROVIDERS = [\n    Location,\n    { provide: UrlSerializer, useClass: DefaultUrlSerializer },\n    Router,\n    ChildrenOutletContexts,\n    { provide: ActivatedRoute, useFactory: rootRoute, deps: [Router] },\n    RouterConfigLoader,\n    // Only used to warn when `provideRoutes` is used without `RouterModule` or `provideRouter`. Can\n    // be removed when `provideRoutes` is removed.\n    (typeof ngDevMode === 'undefined' || ngDevMode) ? { provide: ROUTER_IS_PROVIDED, useValue: true } :\n        [],\n];\nfunction routerNgProbeToken() {\n    return new NgProbeToken('Router', Router);\n}\n/**\n * @description\n *\n * Adds directives and providers for in-app navigation among views defined in an application.\n * Use the Angular `Router` service to declaratively specify application states and manage state\n * transitions.\n *\n * You can import this NgModule multiple times, once for each lazy-loaded bundle.\n * However, only one `Router` service can be active.\n * To ensure this, there are two ways to register routes when importing this module:\n *\n * * The `forRoot()` method creates an `NgModule` that contains all the directives, the given\n * routes, and the `Router` service itself.\n * * The `forChild()` method creates an `NgModule` that contains all the directives and the given\n * routes, but does not include the `Router` service.\n *\n * @see [Routing and Navigation guide](guide/router) for an\n * overview of how the `Router` service should be used.\n *\n * @publicApi\n */\nclass RouterModule {\n    constructor(guard) { }\n    /**\n     * Creates and configures a module with all the router providers and directives.\n     * Optionally sets up an application listener to perform an initial navigation.\n     *\n     * When registering the NgModule at the root, import as follows:\n     *\n     * ```\n     * @NgModule({\n     *   imports: [RouterModule.forRoot(ROUTES)]\n     * })\n     * class MyNgModule {}\n     * ```\n     *\n     * @param routes An array of `Route` objects that define the navigation paths for the application.\n     * @param config An `ExtraOptions` configuration object that controls how navigation is performed.\n     * @return The new `NgModule`.\n     *\n     */\n    static forRoot(routes, config) {\n        return {\n            ngModule: RouterModule,\n            providers: [\n                ROUTER_PROVIDERS,\n                (typeof ngDevMode === 'undefined' || ngDevMode) ?\n                    (config?.enableTracing ? withDebugTracing().ɵproviders : []) :\n                    [],\n                { provide: ROUTES, multi: true, useValue: routes },\n                {\n                    provide: ROUTER_FORROOT_GUARD,\n                    useFactory: provideForRootGuard,\n                    deps: [[Router, new Optional(), new SkipSelf()]]\n                },\n                { provide: ROUTER_CONFIGURATION, useValue: config ? config : {} },\n                config?.useHash ? provideHashLocationStrategy() : providePathLocationStrategy(),\n                provideRouterScroller(),\n                config?.preloadingStrategy ? withPreloading(config.preloadingStrategy).ɵproviders : [],\n                { provide: NgProbeToken, multi: true, useFactory: routerNgProbeToken },\n                config?.initialNavigation ? provideInitialNavigation(config) : [],\n                config?.bindToComponentInputs ? withComponentInputBinding().ɵproviders : [],\n                provideRouterInitializer(),\n            ],\n        };\n    }\n    /**\n     * Creates a module with all the router directives and a provider registering routes,\n     * without creating a new Router service.\n     * When registering for submodules and lazy-loaded submodules, create the NgModule as follows:\n     *\n     * ```\n     * @NgModule({\n     *   imports: [RouterModule.forChild(ROUTES)]\n     * })\n     * class MyNgModule {}\n     * ```\n     *\n     * @param routes An array of `Route` objects that define the navigation paths for the submodule.\n     * @return The new NgModule.\n     *\n     */\n    static forChild(routes) {\n        return {\n            ngModule: RouterModule,\n            providers: [{ provide: ROUTES, multi: true, useValue: routes }],\n        };\n    }\n    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterModule, deps: [{ token: ROUTER_FORROOT_GUARD, optional: true }], target: i0.ɵɵFactoryTarget.NgModule }); }\n    static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterModule, imports: [RouterOutlet, RouterLink, RouterLinkActive, ɵEmptyOutletComponent], exports: [RouterOutlet, RouterLink, RouterLinkActive, ɵEmptyOutletComponent] }); }\n    static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterModule }); }\n}\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RouterModule, decorators: [{\n            type: NgModule,\n            args: [{\n                    imports: ROUTER_DIRECTIVES,\n                    exports: ROUTER_DIRECTIVES,\n                }]\n        }], ctorParameters: function () { return [{ type: undefined, decorators: [{\n                    type: Optional\n                }, {\n                    type: Inject,\n                    args: [ROUTER_FORROOT_GUARD]\n                }] }]; } });\n/**\n * For internal use by `RouterModule` only. Note that this differs from `withInMemoryRouterScroller`\n * because it reads from the `ExtraOptions` which should not be used in the standalone world.\n */\nfunction provideRouterScroller() {\n    return {\n        provide: ROUTER_SCROLLER,\n        useFactory: () => {\n            const viewportScroller = inject(ViewportScroller);\n            const zone = inject(NgZone);\n            const config = inject(ROUTER_CONFIGURATION);\n            const transitions = inject(NavigationTransitions);\n            const urlSerializer = inject(UrlSerializer);\n            if (config.scrollOffset) {\n                viewportScroller.setOffset(config.scrollOffset);\n            }\n            return new RouterScroller(urlSerializer, transitions, viewportScroller, zone, config);\n        },\n    };\n}\n// Note: For internal use only with `RouterModule`. Standalone setup via `provideRouter` should\n// provide hash location directly via `{provide: LocationStrategy, useClass: HashLocationStrategy}`.\nfunction provideHashLocationStrategy() {\n    return { provide: LocationStrategy, useClass: HashLocationStrategy };\n}\n// Note: For internal use only with `RouterModule`. Standalone setup via `provideRouter` does not\n// need this at all because `PathLocationStrategy` is the default factory for `LocationStrategy`.\nfunction providePathLocationStrategy() {\n    return { provide: LocationStrategy, useClass: PathLocationStrategy };\n}\nfunction provideForRootGuard(router) {\n    if ((typeof ngDevMode === 'undefined' || ngDevMode) && router) {\n        throw new ɵRuntimeError(4007 /* RuntimeErrorCode.FOR_ROOT_CALLED_TWICE */, `The Router was provided more than once. This can happen if 'forRoot' is used outside of the root injector.` +\n            ` Lazy loaded modules should use RouterModule.forChild() instead.`);\n    }\n    return 'guarded';\n}\n// Note: For internal use only with `RouterModule`. Standalone router setup with `provideRouter`\n// users call `withXInitialNavigation` directly.\nfunction provideInitialNavigation(config) {\n    return [\n        config.initialNavigation === 'disabled' ? withDisabledInitialNavigation().ɵproviders : [],\n        config.initialNavigation === 'enabledBlocking' ?\n            withEnabledBlockingInitialNavigation().ɵproviders :\n            [],\n    ];\n}\n// TODO(atscott): This should not be in the public API\n/**\n * A [DI token](guide/glossary/#di-token) for the router initializer that\n * is called after the app is bootstrapped.\n *\n * @publicApi\n */\nconst ROUTER_INITIALIZER = new InjectionToken((typeof ngDevMode === 'undefined' || ngDevMode) ? 'Router Initializer' : '');\nfunction provideRouterInitializer() {\n    return [\n        // ROUTER_INITIALIZER token should be removed. It's public API but shouldn't be. We can just\n        // have `getBootstrapListener` directly attached to APP_BOOTSTRAP_LISTENER.\n        { provide: ROUTER_INITIALIZER, useFactory: getBootstrapListener },\n        { provide: APP_BOOTSTRAP_LISTENER, multi: true, useExisting: ROUTER_INITIALIZER },\n    ];\n}\n\n/**\n * Maps an array of injectable classes with canMatch functions to an array of equivalent\n * `CanMatchFn` for use in a `Route` definition.\n *\n * Usage {@example router/utils/functional_guards.ts region='CanActivate'}\n *\n * @publicApi\n * @see {@link Route}\n */\nfunction mapToCanMatch(providers) {\n    return providers.map(provider => (...params) => inject(provider).canMatch(...params));\n}\n/**\n * Maps an array of injectable classes with canActivate functions to an array of equivalent\n * `CanActivateFn` for use in a `Route` definition.\n *\n * Usage {@example router/utils/functional_guards.ts region='CanActivate'}\n *\n * @publicApi\n * @see {@link Route}\n */\nfunction mapToCanActivate(providers) {\n    return providers.map(provider => (...params) => inject(provider).canActivate(...params));\n}\n/**\n * Maps an array of injectable classes with canActivateChild functions to an array of equivalent\n * `CanActivateChildFn` for use in a `Route` definition.\n *\n * Usage {@example router/utils/functional_guards.ts region='CanActivate'}\n *\n * @publicApi\n * @see {@link Route}\n */\nfunction mapToCanActivateChild(providers) {\n    return providers.map(provider => (...params) => inject(provider).canActivateChild(...params));\n}\n/**\n * Maps an array of injectable classes with canDeactivate functions to an array of equivalent\n * `CanDeactivateFn` for use in a `Route` definition.\n *\n * Usage {@example router/utils/functional_guards.ts region='CanActivate'}\n *\n * @publicApi\n * @see {@link Route}\n */\nfunction mapToCanDeactivate(providers) {\n    return providers.map(provider => (...params) => inject(provider).canDeactivate(...params));\n}\n/**\n * Maps an injectable class with a resolve function to an equivalent `ResolveFn`\n * for use in a `Route` definition.\n *\n * Usage {@example router/utils/functional_guards.ts region='Resolve'}\n *\n * @publicApi\n * @see {@link Route}\n */\nfunction mapToResolve(provider) {\n    return (...params) => inject(provider).resolve(...params);\n}\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of the router package.\n */\n/**\n * @publicApi\n */\nconst VERSION = new Version('16.2.12');\n\n/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\n// This file only reexports content of the `src` folder. Keep it that way.\n\n// This file is not used to build this module. It is only used during editing\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ActivatedRoute, ActivatedRouteSnapshot, ActivationEnd, ActivationStart, BaseRouteReuseStrategy, ChildActivationEnd, ChildActivationStart, ChildrenOutletContexts, DefaultTitleStrategy, DefaultUrlSerializer, GuardsCheckEnd, GuardsCheckStart, NavigationCancel, NavigationEnd, NavigationError, NavigationSkipped, NavigationStart, NoPreloading, OutletContext, PRIMARY_OUTLET, PreloadAllModules, PreloadingStrategy, ROUTER_CONFIGURATION, ROUTER_INITIALIZER, ROUTES, ResolveEnd, ResolveStart, RouteConfigLoadEnd, RouteConfigLoadStart, RouteReuseStrategy, Router, RouterEvent, RouterLink, RouterLinkActive, RouterLink as RouterLinkWithHref, RouterModule, RouterOutlet, RouterPreloader, RouterState, RouterStateSnapshot, RoutesRecognized, Scroll, TitleStrategy, UrlHandlingStrategy, UrlSegment, UrlSegmentGroup, UrlSerializer, UrlTree, VERSION, convertToParamMap, createUrlTreeFromSnapshot, defaultUrlMatcher, mapToCanActivate, mapToCanActivateChild, mapToCanDeactivate, mapToCanMatch, mapToResolve, provideRouter, provideRoutes, withComponentInputBinding, withDebugTracing, withDisabledInitialNavigation, withEnabledBlockingInitialNavigation, withHashLocation, withInMemoryScrolling, withNavigationErrorHandler, withPreloading, withRouterConfig, ɵEmptyOutletComponent, ROUTER_PROVIDERS as ɵROUTER_PROVIDERS, afterNextNavigation as ɵafterNextNavigation, loadChildren as ɵloadChildren };\n","import { Observable } from '../Observable';\nimport { isFunction } from './isFunction';\nexport function isObservable(obj) {\n    return !!obj && (obj instanceof Observable || (isFunction(obj.lift) && isFunction(obj.subscribe)));\n}\n","import { concat } from '../observable/concat';\nimport { popScheduler } from '../util/args';\nimport { operate } from '../util/lift';\nexport function startWith(...values) {\n    const scheduler = popScheduler(values);\n    return operate((source, subscriber) => {\n        (scheduler ? concat(values, source, scheduler) : concat(values, source)).subscribe(subscriber);\n    });\n}\n","import { operate } from '../util/lift';\nimport { scanInternals } from './scanInternals';\nexport function scan(accumulator, seed) {\n    return operate(scanInternals(accumulator, seed, arguments.length >= 2, true));\n}\n","import { OperatorSubscriber } from './OperatorSubscriber';\nexport function scanInternals(accumulator, seed, hasSeed, emitOnNext, emitBeforeComplete) {\n    return (source, subscriber) => {\n        let hasState = hasSeed;\n        let state = seed;\n        let index = 0;\n        source.subscribe(new OperatorSubscriber(subscriber, (value) => {\n            const i = index++;\n            state = hasState\n                ?\n                    accumulator(state, value, i)\n                :\n                    ((hasState = true), value);\n            emitOnNext && subscriber.next(state);\n        }, emitBeforeComplete &&\n            (() => {\n                hasState && subscriber.next(state);\n                subscriber.complete();\n            })));\n    };\n}\n","import { EmptyError } from '../util/EmptyError';\nimport { filter } from './filter';\nimport { takeLast } from './takeLast';\nimport { throwIfEmpty } from './throwIfEmpty';\nimport { defaultIfEmpty } from './defaultIfEmpty';\nimport { identity } from '../util/identity';\nexport function last(predicate, defaultValue) {\n    const hasDefaultValue = arguments.length >= 2;\n    return (source) => source.pipe(predicate ? filter((v, i) => predicate(v, i, source)) : identity, takeLast(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(() => new EmptyError()));\n}\n","import { map } from './map';\nexport function mapTo(value) {\n    return map(() => value);\n}\n","import * as i0 from '@angular/core';\nimport { Injectable, NgModule } from '@angular/core';\nimport { HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common/http';\n\nvar CREDIT_CARDS;\r\n(function (CREDIT_CARDS) {\r\n    CREDIT_CARDS[\"None\"] = \"none\";\r\n    CREDIT_CARDS[\"Visa\"] = \"visa\";\r\n    CREDIT_CARDS[\"Mastercard\"] = \"mast\";\r\n    CREDIT_CARDS[\"Discover\"] = \"disc\";\r\n    CREDIT_CARDS[\"AmericanExpress\"] = \"amex\";\r\n    CREDIT_CARDS[\"JapanCreditBureau\"] = \"jcb\";\r\n    CREDIT_CARDS[\"ChinaUnionPay\"] = \"cup\";\r\n    CREDIT_CARDS[\"DinersClub\"] = \"diners\";\r\n})(CREDIT_CARDS || (CREDIT_CARDS = {}));\n\nclass CreditCardValidationService {\r\n    static IsValidCreditCardNumber(creditCardNumber, creditCardBinRanges) {\r\n        // First make sure the number passes the Luhn check\r\n        if (!CreditCardValidationService.passesLuhnCheck(creditCardNumber)) {\r\n            return false;\r\n        }\r\n        return CreditCardValidationService.GetBinRangeForCreditCard(creditCardNumber, creditCardBinRanges).IsValid;\r\n    }\r\n    static GetCreditCardType(creditCardNumber, creditCardBinRanges) {\r\n        // First get the bin range\r\n        const binRange = CreditCardValidationService.GetBinRangeForCreditCard(creditCardNumber, creditCardBinRanges, true);\r\n        if (binRange.IsValid) {\r\n            if (binRange.CardType) {\r\n                return binRange.CardType;\r\n            }\r\n            else {\r\n                return CREDIT_CARDS.None;\r\n            }\r\n        }\r\n        return CREDIT_CARDS.None;\r\n    }\r\n    static GetBinRangeForCreditCard(creditCardNumber, creditCardBinRanges, requiredCardTypeOnly = false) {\r\n        const formattedNumber = creditCardNumber.replace(/\\D+/g, '');\r\n        const possibleBinRanges = creditCardBinRanges?.ValidBinRanges.filter((binRange) => {\r\n            const binToVerify = formattedNumber.substring(0, binRange.BinLength);\r\n            if (Number.isNaN(binToVerify)) {\r\n                return false;\r\n            }\r\n            const ccBinNumber = Number.parseInt(binToVerify, 10);\r\n            const isValidBin = ccBinNumber >= Number.parseInt(binRange.From, 10) && ccBinNumber <= Number.parseInt(binRange.To, 10);\r\n            if (requiredCardTypeOnly) {\r\n                return isValidBin;\r\n            }\r\n            else {\r\n                const isValidLength = formattedNumber.length >= binRange.CreditCardMinLength && formattedNumber.length <= binRange.CreditCardMaxLength;\r\n                return isValidBin && isValidLength;\r\n            }\r\n        });\r\n        if (possibleBinRanges && possibleBinRanges.length === 1) {\r\n            return {\r\n                IsValid: true,\r\n                CardType: possibleBinRanges[0].CreditCardTypeString\r\n            };\r\n        }\r\n        return {\r\n            IsValid: false,\r\n        };\r\n    }\r\n    // Logic stolen from old Resident portal and Luhn logic here https://en.wikipedia.org/wiki/Luhn_algorithm\r\n    static passesLuhnCheck(creditCardNumber) {\r\n        const formattedNumber = creditCardNumber.replace(/\\D+/g, '');\r\n        // Make sure the numbers aren't all 0s\r\n        let nonZeroFound = false, nCheck = 0, bEven = false;\r\n        for (let cardNumberIndex = formattedNumber.length - 1; cardNumberIndex >= 0; cardNumberIndex--) {\r\n            const cDigit = formattedNumber.charAt(cardNumberIndex);\r\n            let nDigit = parseInt(cDigit, 10);\r\n            if (nDigit !== 0) {\r\n                nonZeroFound = true;\r\n            }\r\n            if (bEven) {\r\n                // eslint-disable-next-line no-cond-assign\r\n                if ((nDigit *= 2) > 9) {\r\n                    nDigit -= 9;\r\n                }\r\n            }\r\n            nCheck += nDigit;\r\n            bEven = !bEven;\r\n        }\r\n        if (!nonZeroFound) {\r\n            return false;\r\n        }\r\n        return (nCheck % 10) === 0;\r\n    }\r\n    static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CreditCardValidationService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\r\n    static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CreditCardValidationService, providedIn: 'root' });\r\n}\r\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: CreditCardValidationService, decorators: [{\r\n            type: Injectable,\r\n            args: [{ providedIn: 'root' }]\r\n        }] });\n\nclass RequestInterceptor {\r\n    intercept(req, next) {\r\n        let sanitizedRequest = req;\r\n        sanitizedRequest = this.sanitizeParams(sanitizedRequest);\r\n        sanitizedRequest = this.sanitizeHeaders(sanitizedRequest);\r\n        sanitizedRequest = this.sanitizeQueryString(sanitizedRequest);\r\n        return next.handle(sanitizedRequest);\r\n    }\r\n    sanitizeHeaders(req) {\r\n        let headers = req.headers;\r\n        req.headers.keys().forEach(key => {\r\n            const value = req.headers.get(key);\r\n            if (value === '' || value === 'null' || value === 'undefined') {\r\n                headers = headers.delete(key);\r\n            }\r\n        });\r\n        return req.clone({ headers });\r\n    }\r\n    sanitizeParams(req) {\r\n        if (!req.params) {\r\n            return req;\r\n        }\r\n        let params = req.params;\r\n        req.params.keys().forEach(key => {\r\n            const value = req.params.get(key);\r\n            if (value === '' || value === 'null' || value === 'undefined') {\r\n                params = params.delete(key);\r\n            }\r\n        });\r\n        return req.clone({ params });\r\n    }\r\n    sanitizeQueryString(req) {\r\n        const queryIndex = req.url.indexOf('?');\r\n        if (queryIndex < 0) {\r\n            return req;\r\n        }\r\n        const path = req.url.substring(0, queryIndex);\r\n        const queryString = req.url.substring(queryIndex + 1)\r\n            .split('&')\r\n            .filter(param => param.indexOf('=') !== param.length - 1)\r\n            .filter(param => !param.endsWith('=null') && !param.endsWith('=undefined'))\r\n            .join('&');\r\n        return req.clone({ url: `${path}?${queryString}` });\r\n    }\r\n    static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RequestInterceptor, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\r\n    static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RequestInterceptor });\r\n}\r\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: RequestInterceptor, decorators: [{\r\n            type: Injectable\r\n        }] });\n\nclass BdxHttpModule {\r\n    static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BdxHttpModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });\r\n    static ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: \"14.0.0\", version: \"16.2.12\", ngImport: i0, type: BdxHttpModule, imports: [HttpClientModule] });\r\n    static ɵinj = i0.ɵɵngDeclareInjector({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BdxHttpModule, providers: [\r\n            {\r\n                provide: HTTP_INTERCEPTORS,\r\n                useClass: RequestInterceptor,\r\n                multi: true\r\n            }\r\n        ], imports: [HttpClientModule] });\r\n}\r\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: BdxHttpModule, decorators: [{\r\n            type: NgModule,\r\n            args: [{\r\n                    imports: [\r\n                        HttpClientModule\r\n                    ],\r\n                    providers: [\r\n                        {\r\n                            provide: HTTP_INTERCEPTORS,\r\n                            useClass: RequestInterceptor,\r\n                            multi: true\r\n                        }\r\n                    ]\r\n                }]\r\n        }] });\n\nclass ErrorHash {\r\n    // Hash function was repurposed from here http://werxltd.com/wp/2010/05/13/javascript-implementation-of-javas-string-hashcode-method/\r\n    hashErrorString(value) {\r\n        let hash = 0, i, chr, len;\r\n        if (value.length === 0)\r\n            return hash;\r\n        for (i = 0, len = value.length; i < len; i++) {\r\n            chr = value.charCodeAt(i);\r\n            // eslint-disable-next-line no-bitwise\r\n            hash = ((hash << 5) - hash) + chr;\r\n            // eslint-disable-next-line no-bitwise\r\n            hash |= 0; // Convert to 32bit integer\r\n        }\r\n        return hash;\r\n    }\r\n    static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ErrorHash, deps: [], target: i0.ɵɵFactoryTarget.Injectable });\r\n    static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ErrorHash, providedIn: 'root' });\r\n}\r\ni0.ɵɵngDeclareClassMetadata({ minVersion: \"12.0.0\", version: \"16.2.12\", ngImport: i0, type: ErrorHash, decorators: [{\r\n            type: Injectable,\r\n            args: [{ providedIn: 'root' }]\r\n        }] });\n\n/*\r\n * Public API Surface of ngx-app-utility\r\n */\r\n// NOTE Keep alphabetical\n\n/**\r\n * Generated bundle index. Do not edit.\r\n */\n\nexport { BdxHttpModule, CreditCardValidationService, ErrorHash };\n","import { Subject, Subscription, from, EMPTY } from 'rxjs';\nimport { ɵNG_PIPE_DEF, ɵgetLContext, ɵglobal } from '@angular/core';\nimport { mergeMap, takeUntil } from 'rxjs/operators';\n\nconst NG_PIPE_DEF = ɵNG_PIPE_DEF;\nfunction isPipe(target) {\n    return !!target[NG_PIPE_DEF];\n}\n\n/**\n * Applied to instances and stores `Subject` instance when\n * no custom destroy method is provided.\n */\nconst DESTROY = Symbol('__destroy');\n/**\n * Applied to definitions and informs that class is decorated\n */\nconst DECORATOR_APPLIED = Symbol('__decoratorApplied');\n/**\n * If we use the `untilDestroyed` operator multiple times inside the single\n * instance providing different `destroyMethodName`, then all streams will\n * subscribe to the single subject. If any method is invoked, the subject will\n * emit and all streams will be unsubscribed. We wan't to prevent this behavior,\n * thus we store subjects under different symbols.\n */\nfunction getSymbol(destroyMethodName) {\n    if (typeof destroyMethodName === 'string') {\n        return Symbol(`__destroy__${destroyMethodName}`);\n    }\n    else {\n        return DESTROY;\n    }\n}\nfunction markAsDecorated(type) {\n    // Store this property on the prototype if it's an injectable class, component or directive.\n    // We will be able to handle class extension this way.\n    type.prototype[DECORATOR_APPLIED] = true;\n}\nfunction createSubjectOnTheInstance(instance, symbol) {\n    if (!instance[symbol]) {\n        instance[symbol] = new Subject();\n    }\n}\nfunction completeSubjectOnTheInstance(instance, symbol) {\n    if (instance[symbol]) {\n        instance[symbol].next();\n        instance[symbol].complete();\n        // We also have to re-assign this property thus in the future\n        // we will be able to create new subject on the same instance.\n        instance[symbol] = null;\n    }\n}\n\nfunction unsubscribe(property) {\n    if (property instanceof Subscription) {\n        property.unsubscribe();\n    }\n}\nfunction unsubscribeIfPropertyIsArrayLike(property) {\n    Array.isArray(property) && property.forEach(unsubscribe);\n}\nfunction decorateNgOnDestroy(ngOnDestroy, options) {\n    return function () {\n        // Invoke the original `ngOnDestroy` if it exists\n        ngOnDestroy && ngOnDestroy.call(this);\n        // It's important to use `this` instead of caching instance\n        // that may lead to memory leaks\n        completeSubjectOnTheInstance(this, getSymbol());\n        // Check if subscriptions are pushed to some array\n        if (options.arrayName) {\n            unsubscribeIfPropertyIsArrayLike(this[options.arrayName]);\n        }\n        // Loop through the properties and find subscriptions\n        if (options.checkProperties) {\n            for (const property in this) {\n                if (options.blackList?.includes(property)) {\n                    continue;\n                }\n                unsubscribe(this[property]);\n            }\n        }\n    };\n}\nfunction decorateProviderDirectiveOrComponent(type, options) {\n    type.prototype.ngOnDestroy = decorateNgOnDestroy(type.prototype.ngOnDestroy, options);\n}\nfunction decoratePipe(type, options) {\n    const def = type.ɵpipe;\n    def.onDestroy = decorateNgOnDestroy(def.onDestroy, options);\n}\nfunction UntilDestroy(options = {}) {\n    return (type) => {\n        if (isPipe(type)) {\n            decoratePipe(type, options);\n        }\n        else {\n            decorateProviderDirectiveOrComponent(type, options);\n        }\n        markAsDecorated(type);\n    };\n}\n\n// `LView` is an array where each index matches the specific data structure.\n// The 7th element in an `LView` is an array of cleanup listeners. They are\n// invoked when the view is removed (similar to `ComponentRef.onDestroy`).\nconst CLEANUP = 7;\nconst CheckerHasBeenSet = Symbol('CheckerHasBeenSet');\nfunction setupSubjectUnsubscribedChecker(instance, destroy$) {\n    // This function is used within the `untilDestroyed` operator and setups a function that\n    // listens for the view removal and checks if the `destroy$` subject has any observers (usually `takeUntil`).\n    // Note: this code will not be shipped into production since it's guarded with `ngDevMode`,\n    // this means it'll exist only in development mode.\n    if (instance[CheckerHasBeenSet] || isAngularInTestMode()) {\n        return;\n    }\n    runOutsideAngular(() => from(Promise.resolve())\n        .pipe(mergeMap(() => {\n        let lContext;\n        try {\n            // The `ɵgetLContext` might not work for a pipe, because it's not a component nor a directive,\n            // which means there's no `RNode` for an instance.\n            lContext = ɵgetLContext(instance);\n        }\n        catch {\n            lContext = null;\n        }\n        const lView = lContext?.lView;\n        if (lView == null) {\n            return EMPTY;\n        }\n        const lCleanup = lView[CLEANUP] || (lView[CLEANUP] = []);\n        const cleanupHasBeenExecuted$ = new Subject();\n        // Note: this function is named for debugging purposes.\n        lCleanup.push(function untilDestroyedLCleanup() {\n            // We leave the Angular zone, so RxJS will also call subsequent `next` functions\n            // outside of the Angular zone, which is done to avoid scheduling a microtask (through\n            // `asapScheduler`) within the Angular zone.\n            runOutsideAngular(() => {\n                cleanupHasBeenExecuted$.next();\n                cleanupHasBeenExecuted$.complete();\n            });\n        });\n        return cleanupHasBeenExecuted$;\n    }), \n    // We can't use `observeOn(asapScheduler)` because this might break the app's change detection.\n    // RxJS schedulers coalesce tasks and then flush the queue, which means our task might be scheduled\n    // within the root zone, and then all of the tasks (that were set up by developers in the Angular zone)\n    // will also be flushed in the root zone.\n    mergeMap(() => Promise.resolve()))\n        .subscribe(() => {\n        // Note: The `observed` property is available only in RxJS@7.2.0, which will throw\n        // an error in lower versions. We have integration test with RxJS@6 to ensure we don't\n        // import operators from `rxjs`; that's why it's wrapped into braces. The `observers`\n        // property is also being deprecated.\n        const observed = destroy$['observed'] ?? destroy$['observers'].length > 0;\n        if (observed) {\n            console.warn(createMessage(instance));\n        }\n    }));\n    instance[CheckerHasBeenSet] = true;\n}\nfunction isAngularInTestMode() {\n    // Gets whether the code is currently running in a test environment.\n    // We don't use `declare const` because it might cause conflicts with the real typings.\n    return (\n    // eslint-disable-next-line @typescript-eslint/ban-ts-comment\n    // @ts-ignore\n    (typeof __karma__ !== 'undefined' && !!__karma__) ||\n        // eslint-disable-next-line @typescript-eslint/ban-ts-comment\n        // @ts-ignore\n        (typeof jasmine !== 'undefined' && !!jasmine) ||\n        // eslint-disable-next-line @typescript-eslint/ban-ts-comment\n        // @ts-ignore\n        (typeof jest !== 'undefined' && !!jest) ||\n        // eslint-disable-next-line @typescript-eslint/ban-ts-comment\n        // @ts-ignore\n        (typeof Mocha !== 'undefined' && !!Mocha) ||\n        // Jest is not defined in ESM mode since it must be access only by importing from `@jest/globals`.\n        // There's no way to check if we're in Jest ESM mode or not, but we can check if the `process` is defined.\n        // Note: it's required to check for `[object process]` because someone might be running unit tests with\n        // Webpack and shimming `process`.\n        (typeof process !== 'undefined' &&\n            Object.prototype.toString.call(process) === '[object process]'));\n}\nfunction runOutsideAngular(fn) {\n    // We cannot inject the `NgZone` class when running the checker. The `__ngContext__` is read\n    // for the first time within a microtask which triggers change detection; we want to avoid that.\n    // The `Zone` is always available globally when the `zone.js` is imported. Otherwise, it may be\n    // nooped through bootstrap options. The `NgZone.runOutsideAngular` calls `Zone.root.run`, so we're\n    // safe calling that function directly.\n    const Zone = ɵglobal.Zone;\n    const isNgZoneEnabled = !!Zone && typeof Zone.root?.run === 'function';\n    return isNgZoneEnabled ? Zone.root.run(fn) : fn();\n}\nfunction createMessage(instance) {\n    return `\n  The ${instance.constructor.name} still has subscriptions that haven't been unsubscribed.\n  This may happen if the class extends another class decorated with @UntilDestroy().\n  The child class implements its own ngOnDestroy() method but doesn't call super.ngOnDestroy().\n  Let's look at the following example:\n  @UntilDestroy()\n  @Directive()\n  export abstract class BaseDirective {}\n  @Component({ template: '' })\n  export class ConcreteComponent extends BaseDirective implements OnDestroy {\n    constructor() {\n      super();\n      someObservable$.pipe(untilDestroyed(this)).subscribe();\n    }\n    ngOnDestroy(): void {\n      // Some logic here...\n    }\n  }\n  The BaseDirective.ngOnDestroy() will not be called since Angular will call ngOnDestroy()\n  on the ConcreteComponent, but not on the BaseDirective.\n  One of the solutions is to declare an empty ngOnDestroy method on the BaseDirective:\n  @UntilDestroy()\n  @Directive()\n  export abstract class BaseDirective {\n    ngOnDestroy(): void {}\n  }\n  @Component({ template: '' })\n  export class ConcreteComponent extends BaseDirective implements OnDestroy {\n    constructor() {\n      super();\n      someObservable$.pipe(untilDestroyed(this)).subscribe();\n    }\n    ngOnDestroy(): void {\n      // Some logic here...\n      super.ngOnDestroy();\n    }\n  }\n  `;\n}\n\nconst NG_DEV_MODE = typeof ngDevMode === 'undefined' || ngDevMode;\nfunction overrideNonDirectiveInstanceMethod(instance, destroyMethodName, symbol) {\n    const originalDestroy = instance[destroyMethodName];\n    if (NG_DEV_MODE && typeof originalDestroy !== 'function') {\n        throw new Error(`${instance.constructor.name} is using untilDestroyed but doesn't implement ${destroyMethodName}`);\n    }\n    createSubjectOnTheInstance(instance, symbol);\n    instance[destroyMethodName] = function () {\n        // eslint-disable-next-line prefer-rest-params\n        originalDestroy.apply(this, arguments);\n        completeSubjectOnTheInstance(this, symbol);\n        // We have to re-assign this property back to the original value.\n        // If the `untilDestroyed` operator is called for the same instance\n        // multiple times, then we will be able to get the original\n        // method again and not the patched one.\n        instance[destroyMethodName] = originalDestroy;\n    };\n}\nfunction untilDestroyed(instance, destroyMethodName) {\n    return (source) => {\n        const symbol = getSymbol(destroyMethodName);\n        // If `destroyMethodName` is passed then the developer applies\n        // this operator to something non-related to Angular DI system\n        if (typeof destroyMethodName === 'string') {\n            overrideNonDirectiveInstanceMethod(instance, destroyMethodName, symbol);\n        }\n        else {\n            NG_DEV_MODE && ensureClassIsDecorated(instance);\n            createSubjectOnTheInstance(instance, symbol);\n        }\n        const destroy$ = instance[symbol];\n        NG_DEV_MODE && setupSubjectUnsubscribedChecker(instance, destroy$);\n        return source.pipe(takeUntil(destroy$));\n    };\n}\nfunction ensureClassIsDecorated(instance) {\n    const prototype = Object.getPrototypeOf(instance);\n    const missingDecorator = !(DECORATOR_APPLIED in prototype);\n    if (missingDecorator) {\n        throw new Error('untilDestroyed operator cannot be used inside directives or ' +\n            'components or providers that are not decorated with UntilDestroy decorator');\n    }\n}\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { UntilDestroy, untilDestroyed };\n","function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {\n  try {\n    var info = gen[key](arg);\n    var value = info.value;\n  } catch (error) {\n    reject(error);\n    return;\n  }\n  if (info.done) {\n    resolve(value);\n  } else {\n    Promise.resolve(value).then(_next, _throw);\n  }\n}\nexport default function _asyncToGenerator(fn) {\n  return function () {\n    var self = this,\n      args = arguments;\n    return new Promise(function (resolve, reject) {\n      var gen = fn.apply(self, args);\n      function _next(value) {\n        asyncGeneratorStep(gen, resolve, reject, _next, _throw, \"next\", value);\n      }\n      function _throw(err) {\n        asyncGeneratorStep(gen, resolve, reject, _next, _throw, \"throw\", err);\n      }\n      _next(undefined);\n    });\n  };\n}","/******************************************************************************\nCopyright (c) Microsoft Corporation.\n\nPermission to use, copy, modify, and/or distribute this software for any\npurpose with or without fee is hereby granted.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\nPERFORMANCE OF THIS SOFTWARE.\n***************************************************************************** */\n/* global Reflect, Promise, SuppressedError, Symbol, Iterator */\n\nvar extendStatics = function(d, b) {\n  extendStatics = Object.setPrototypeOf ||\n      ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n      function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n  return extendStatics(d, b);\n};\n\nexport function __extends(d, b) {\n  if (typeof b !== \"function\" && b !== null)\n      throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n  extendStatics(d, b);\n  function __() { this.constructor = d; }\n  d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n}\n\nexport var __assign = function() {\n  __assign = Object.assign || function __assign(t) {\n      for (var s, i = 1, n = arguments.length; i < n; i++) {\n          s = arguments[i];\n          for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\n      }\n      return t;\n  }\n  return __assign.apply(this, arguments);\n}\n\nexport function __rest(s, e) {\n  var t = {};\n  for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n      t[p] = s[p];\n  if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\n      for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n          if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\n              t[p[i]] = s[p[i]];\n      }\n  return t;\n}\n\nexport function __decorate(decorators, target, key, desc) {\n  var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n  if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n  else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n  return c > 3 && r && Object.defineProperty(target, key, r), r;\n}\n\nexport function __param(paramIndex, decorator) {\n  return function (target, key) { decorator(target, key, paramIndex); }\n}\n\nexport function __esDecorate(ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {\n  function accept(f) { if (f !== void 0 && typeof f !== \"function\") throw new TypeError(\"Function expected\"); return f; }\n  var kind = contextIn.kind, key = kind === \"getter\" ? \"get\" : kind === \"setter\" ? \"set\" : \"value\";\n  var target = !descriptorIn && ctor ? contextIn[\"static\"] ? ctor : ctor.prototype : null;\n  var descriptor = descriptorIn || (target ? Object.getOwnPropertyDescriptor(target, contextIn.name) : {});\n  var _, done = false;\n  for (var i = decorators.length - 1; i >= 0; i--) {\n      var context = {};\n      for (var p in contextIn) context[p] = p === \"access\" ? {} : contextIn[p];\n      for (var p in contextIn.access) context.access[p] = contextIn.access[p];\n      context.addInitializer = function (f) { if (done) throw new TypeError(\"Cannot add initializers after decoration has completed\"); extraInitializers.push(accept(f || null)); };\n      var result = (0, decorators[i])(kind === \"accessor\" ? { get: descriptor.get, set: descriptor.set } : descriptor[key], context);\n      if (kind === \"accessor\") {\n          if (result === void 0) continue;\n          if (result === null || typeof result !== \"object\") throw new TypeError(\"Object expected\");\n          if (_ = accept(result.get)) descriptor.get = _;\n          if (_ = accept(result.set)) descriptor.set = _;\n          if (_ = accept(result.init)) initializers.unshift(_);\n      }\n      else if (_ = accept(result)) {\n          if (kind === \"field\") initializers.unshift(_);\n          else descriptor[key] = _;\n      }\n  }\n  if (target) Object.defineProperty(target, contextIn.name, descriptor);\n  done = true;\n};\n\nexport function __runInitializers(thisArg, initializers, value) {\n  var useValue = arguments.length > 2;\n  for (var i = 0; i < initializers.length; i++) {\n      value = useValue ? initializers[i].call(thisArg, value) : initializers[i].call(thisArg);\n  }\n  return useValue ? value : void 0;\n};\n\nexport function __propKey(x) {\n  return typeof x === \"symbol\" ? x : \"\".concat(x);\n};\n\nexport function __setFunctionName(f, name, prefix) {\n  if (typeof name === \"symbol\") name = name.description ? \"[\".concat(name.description, \"]\") : \"\";\n  return Object.defineProperty(f, \"name\", { configurable: true, value: prefix ? \"\".concat(prefix, \" \", name) : name });\n};\n\nexport function __metadata(metadataKey, metadataValue) {\n  if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\n}\n\nexport function __awaiter(thisArg, _arguments, P, generator) {\n  function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n  return new (P || (P = Promise))(function (resolve, reject) {\n      function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n      function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n      function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n      step((generator = generator.apply(thisArg, _arguments || [])).next());\n  });\n}\n\nexport function __generator(thisArg, body) {\n  var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === \"function\" ? Iterator : Object).prototype);\n  return g.next = verb(0), g[\"throw\"] = verb(1), g[\"return\"] = verb(2), typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\n  function verb(n) { return function (v) { return step([n, v]); }; }\n  function step(op) {\n      if (f) throw new TypeError(\"Generator is already executing.\");\n      while (g && (g = 0, op[0] && (_ = 0)), _) try {\n          if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n          if (y = 0, t) op = [op[0] & 2, t.value];\n          switch (op[0]) {\n              case 0: case 1: t = op; break;\n              case 4: _.label++; return { value: op[1], done: false };\n              case 5: _.label++; y = op[1]; op = [0]; continue;\n              case 7: op = _.ops.pop(); _.trys.pop(); continue;\n              default:\n                  if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n                  if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n                  if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n                  if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n                  if (t[2]) _.ops.pop();\n                  _.trys.pop(); continue;\n          }\n          op = body.call(thisArg, _);\n      } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n      if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n  }\n}\n\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\n  if (k2 === undefined) k2 = k;\n  var desc = Object.getOwnPropertyDescriptor(m, k);\n  if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n      desc = { enumerable: true, get: function() { return m[k]; } };\n  }\n  Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n  if (k2 === undefined) k2 = k;\n  o[k2] = m[k];\n});\n\nexport function __exportStar(m, o) {\n  for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\n}\n\nexport function __values(o) {\n  var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\n  if (m) return m.call(o);\n  if (o && typeof o.length === \"number\") return {\n      next: function () {\n          if (o && i >= o.length) o = void 0;\n          return { value: o && o[i++], done: !o };\n      }\n  };\n  throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\n}\n\nexport function __read(o, n) {\n  var m = typeof Symbol === \"function\" && o[Symbol.iterator];\n  if (!m) return o;\n  var i = m.call(o), r, ar = [], e;\n  try {\n      while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\n  }\n  catch (error) { e = { error: error }; }\n  finally {\n      try {\n          if (r && !r.done && (m = i[\"return\"])) m.call(i);\n      }\n      finally { if (e) throw e.error; }\n  }\n  return ar;\n}\n\n/** @deprecated */\nexport function __spread() {\n  for (var ar = [], i = 0; i < arguments.length; i++)\n      ar = ar.concat(__read(arguments[i]));\n  return ar;\n}\n\n/** @deprecated */\nexport function __spreadArrays() {\n  for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\n  for (var r = Array(s), k = 0, i = 0; i < il; i++)\n      for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\n          r[k] = a[j];\n  return r;\n}\n\nexport function __spreadArray(to, from, pack) {\n  if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\n      if (ar || !(i in from)) {\n          if (!ar) ar = Array.prototype.slice.call(from, 0, i);\n          ar[i] = from[i];\n      }\n  }\n  return to.concat(ar || Array.prototype.slice.call(from));\n}\n\nexport function __await(v) {\n  return this instanceof __await ? (this.v = v, this) : new __await(v);\n}\n\nexport function __asyncGenerator(thisArg, _arguments, generator) {\n  if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\n  var g = generator.apply(thisArg, _arguments || []), i, q = [];\n  return i = Object.create((typeof AsyncIterator === \"function\" ? AsyncIterator : Object).prototype), verb(\"next\"), verb(\"throw\"), verb(\"return\", awaitReturn), i[Symbol.asyncIterator] = function () { return this; }, i;\n  function awaitReturn(f) { return function (v) { return Promise.resolve(v).then(f, reject); }; }\n  function verb(n, f) { if (g[n]) { i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; if (f) i[n] = f(i[n]); } }\n  function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\n  function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\n  function fulfill(value) { resume(\"next\", value); }\n  function reject(value) { resume(\"throw\", value); }\n  function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\n}\n\nexport function __asyncDelegator(o) {\n  var i, p;\n  return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\n  function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }\n}\n\nexport function __asyncValues(o) {\n  if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\n  var m = o[Symbol.asyncIterator], i;\n  return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\n  function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\n  function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\n}\n\nexport function __makeTemplateObject(cooked, raw) {\n  if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\n  return cooked;\n};\n\nvar __setModuleDefault = Object.create ? (function(o, v) {\n  Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n  o[\"default\"] = v;\n};\n\nvar ownKeys = function(o) {\n  ownKeys = Object.getOwnPropertyNames || function (o) {\n    var ar = [];\n    for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;\n    return ar;\n  };\n  return ownKeys(o);\n};\n\nexport function __importStar(mod) {\n  if (mod && mod.__esModule) return mod;\n  var result = {};\n  if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== \"default\") __createBinding(result, mod, k[i]);\n  __setModuleDefault(result, mod);\n  return result;\n}\n\nexport function __importDefault(mod) {\n  return (mod && mod.__esModule) ? mod : { default: mod };\n}\n\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\n  if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\n  if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\n  return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\n}\n\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\n  if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\n  if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\n  if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\n  return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\n}\n\nexport function __classPrivateFieldIn(state, receiver) {\n  if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\n  return typeof state === \"function\" ? receiver === state : state.has(receiver);\n}\n\nexport function __addDisposableResource(env, value, async) {\n  if (value !== null && value !== void 0) {\n    if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\n    var dispose, inner;\n    if (async) {\n      if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\n      dispose = value[Symbol.asyncDispose];\n    }\n    if (dispose === void 0) {\n      if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\n      dispose = value[Symbol.dispose];\n      if (async) inner = dispose;\n    }\n    if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\n    if (inner) dispose = function() { try { inner.call(this); } catch (e) { return Promise.reject(e); } };\n    env.stack.push({ value: value, dispose: dispose, async: async });\n  }\n  else if (async) {\n    env.stack.push({ async: true });\n  }\n  return value;\n}\n\nvar _SuppressedError = typeof SuppressedError === \"function\" ? SuppressedError : function (error, suppressed, message) {\n  var e = new Error(message);\n  return e.name = \"SuppressedError\", e.error = error, e.suppressed = suppressed, e;\n};\n\nexport function __disposeResources(env) {\n  function fail(e) {\n    env.error = env.hasError ? new _SuppressedError(e, env.error, \"An error was suppressed during disposal.\") : e;\n    env.hasError = true;\n  }\n  var r, s = 0;\n  function next() {\n    while (r = env.stack.pop()) {\n      try {\n        if (!r.async && s === 1) return s = 0, env.stack.push(r), Promise.resolve().then(next);\n        if (r.dispose) {\n          var result = r.dispose.call(r.value);\n          if (r.async) return s |= 2, Promise.resolve(result).then(next, function(e) { fail(e); return next(); });\n        }\n        else s |= 1;\n      }\n      catch (e) {\n        fail(e);\n      }\n    }\n    if (s === 1) return env.hasError ? Promise.reject(env.error) : Promise.resolve();\n    if (env.hasError) throw env.error;\n  }\n  return next();\n}\n\nexport function __rewriteRelativeImportExtension(path, preserveJsx) {\n  if (typeof path === \"string\" && /^\\.\\.?\\//.test(path)) {\n      return path.replace(/\\.(tsx)$|((?:\\.d)?)((?:\\.[^./]+?)?)\\.([cm]?)ts$/i, function (m, tsx, d, ext, cm) {\n          return tsx ? preserveJsx ? \".jsx\" : \".js\" : d && (!ext || !cm) ? m : (d + ext + \".\" + cm.toLowerCase() + \"js\");\n      });\n  }\n  return path;\n}\n\nexport default {\n  __extends,\n  __assign,\n  __rest,\n  __decorate,\n  __param,\n  __esDecorate,\n  __runInitializers,\n  __propKey,\n  __setFunctionName,\n  __metadata,\n  __awaiter,\n  __generator,\n  __createBinding,\n  __exportStar,\n  __values,\n  __read,\n  __spread,\n  __spreadArrays,\n  __spreadArray,\n  __await,\n  __asyncGenerator,\n  __asyncDelegator,\n  __asyncValues,\n  __makeTemplateObject,\n  __importStar,\n  __importDefault,\n  __classPrivateFieldGet,\n  __classPrivateFieldSet,\n  __classPrivateFieldIn,\n  __addDisposableResource,\n  __disposeResources,\n  __rewriteRelativeImportExtension,\n};\n"],"x_google_ignoreList":[5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,103,104,105,106,107,108,111,112,116,123,125,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299]}