/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { ChangeDetectorRef, Pipe, ɵisPromise, ɵisSubscribable } from '@angular/core';
import { invalidPipeArgumentError } from './invalid_pipe_argument_error';
import * as i0 from "@angular/core";
class SubscribableStrategy {
    createSubscription(async, updateLatestValue) {
        return async.subscribe({
            next: updateLatestValue,
            error: (e) => {
                throw e;
            }
        });
    }
    dispose(subscription) {
        subscription.unsubscribe();
    }
}
class PromiseStrategy {
    createSubscription(async, updateLatestValue) {
        return async.then(updateLatestValue, e => {
            throw e;
        });
    }
    dispose(subscription) { }
}
const _promiseStrategy = new PromiseStrategy();
const _subscribableStrategy = new SubscribableStrategy();
/**
 * @ngModule CommonModule
 * @description
 *
 * Unwraps a value from an asynchronous primitive.
 *
 * The `async` pipe subscribes to an `Observable` or `Promise` and returns the latest value it has
 * emitted. When a new value is emitted, the `async` pipe marks the component to be checked for
 * changes. When the component gets destroyed, the `async` pipe unsubscribes automatically to avoid
 * potential memory leaks. When the reference of the expression changes, the `async` pipe
 * automatically unsubscribes from the old `Observable` or `Promise` and subscribes to the new one.
 *
 * @usageNotes
 *
 * ### Examples
 *
 * This example binds a `Promise` to the view. Clicking the `Resolve` button resolves the
 * promise.
 *
 * {@example common/pipes/ts/async_pipe.ts region='AsyncPipePromise'}
 *
 * It's also possible to use `async` with Observables. The example below binds the `time` Observable
 * to the view. The Observable continuously updates the view with the current time.
 *
 * {@example common/pipes/ts/async_pipe.ts region='AsyncPipeObservable'}
 *
 * @publicApi
 */
export class AsyncPipe {
    constructor(ref) {
        this._latestValue = null;
        this._subscription = null;
        this._obj = null;
        this._strategy = null;
        // Assign `ref` into `this._ref` manually instead of declaring `_ref` in the constructor
        // parameter list, as the type of `this._ref` includes `null` unlike the type of `ref`.
        this._ref = ref;
    }
    ngOnDestroy() {
        if (this._subscription) {
            this._dispose();
        }
        // Clear the `ChangeDetectorRef` and its association with the view data, to mitigate
        // potential memory leaks in Observables that could otherwise cause the view data to
        // be retained.
        // https://github.com/angular/angular/issues/17624
        this._ref = null;
    }
    transform(obj) {
        if (!this._obj) {
            if (obj) {
                this._subscribe(obj);
            }
            return this._latestValue;
        }
        if (obj !== this._obj) {
            this._dispose();
            return this.transform(obj);
        }
        return this._latestValue;
    }
    _subscribe(obj) {
        this._obj = obj;
        this._strategy = this._selectStrategy(obj);
        this._subscription = this._strategy.createSubscription(obj, (value) => this._updateLatestValue(obj, value));
    }
    _selectStrategy(obj) {
        if (ɵisPromise(obj)) {
            return _promiseStrategy;
        }
        if (ɵisSubscribable(obj)) {
            return _subscribableStrategy;
        }
        throw invalidPipeArgumentError(AsyncPipe, obj);
    }
    _dispose() {
        // Note: `dispose` is only called if a subscription has been initialized before, indicating
        // that `this._strategy` is also available.
        this._strategy.dispose(this._subscription);
        this._latestValue = null;
        this._subscription = null;
        this._obj = null;
    }
    _updateLatestValue(async, value) {
        if (async === this._obj) {
            this._latestValue = value;
            // Note: `this._ref` is only cleared in `ngOnDestroy` so is known to be available when a
            // value is being updated.
            this._ref.markForCheck();
        }
    }
}
AsyncPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: AsyncPipe, deps: [{ token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Pipe });
AsyncPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: "14.0.0", version: "14.3.0", ngImport: i0, type: AsyncPipe, isStandalone: true, name: "async", pure: false });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: AsyncPipe, decorators: [{
            type: Pipe,
            args: [{
                    name: 'async',
                    pure: false,
                    standalone: true,
                }]
        }], ctorParameters: function () { return [{ type: i0.ChangeDetectorRef }]; } });
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"async_pipe.js","sourceRoot":"","sources":["../../../../../../../packages/common/src/pipes/async_pipe.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,iBAAiB,EAA2B,IAAI,EAAiB,UAAU,EAAE,eAAe,EAAC,MAAM,eAAe,CAAC;AAG3H,OAAO,EAAC,wBAAwB,EAAC,MAAM,+BAA+B,CAAC;;AAQvE,MAAM,oBAAoB;IACxB,kBAAkB,CAAC,KAAwB,EAAE,iBAAsB;QACjE,OAAO,KAAK,CAAC,SAAS,CAAC;YACrB,IAAI,EAAE,iBAAiB;YACvB,KAAK,EAAE,CAAC,CAAM,EAAE,EAAE;gBAChB,MAAM,CAAC,CAAC;YACV,CAAC;SACF,CAAC,CAAC;IACL,CAAC;IAED,OAAO,CAAC,YAA4B;QAClC,YAAY,CAAC,WAAW,EAAE,CAAC;IAC7B,CAAC;CACF;AAED,MAAM,eAAe;IACnB,kBAAkB,CAAC,KAAmB,EAAE,iBAAkC;QACxE,OAAO,KAAK,CAAC,IAAI,CAAC,iBAAiB,EAAE,CAAC,CAAC,EAAE;YACvC,MAAM,CAAC,CAAC;QACV,CAAC,CAAC,CAAC;IACL,CAAC;IAED,OAAO,CAAC,YAA0B,IAAS,CAAC;CAC7C;AAED,MAAM,gBAAgB,GAAG,IAAI,eAAe,EAAE,CAAC;AAC/C,MAAM,qBAAqB,GAAG,IAAI,oBAAoB,EAAE,CAAC;AAEzD;;;;;;;;;;;;;;;;;;;;;;;;;;;GA2BG;AAMH,MAAM,OAAO,SAAS;IAQpB,YAAY,GAAsB;QAN1B,iBAAY,GAAQ,IAAI,CAAC;QAEzB,kBAAa,GAAqC,IAAI,CAAC;QACvD,SAAI,GAA0D,IAAI,CAAC;QACnE,cAAS,GAA8B,IAAI,CAAC;QAGlD,wFAAwF;QACxF,uFAAuF;QACvF,IAAI,CAAC,IAAI,GAAG,GAAG,CAAC;IAClB,CAAC;IAED,WAAW;QACT,IAAI,IAAI,CAAC,aAAa,EAAE;YACtB,IAAI,CAAC,QAAQ,EAAE,CAAC;SACjB;QACD,oFAAoF;QACpF,oFAAoF;QACpF,eAAe;QACf,kDAAkD;QAClD,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IASD,SAAS,CAAI,GAA4D;QACvE,IAAI,CAAC,IAAI,CAAC,IAAI,EAAE;YACd,IAAI,GAAG,EAAE;gBACP,IAAI,CAAC,UAAU,CAAC,GAAG,CAAC,CAAC;aACtB;YACD,OAAO,IAAI,CAAC,YAAY,CAAC;SAC1B;QAED,IAAI,GAAG,KAAK,IAAI,CAAC,IAAI,EAAE;YACrB,IAAI,CAAC,QAAQ,EAAE,CAAC;YAChB,OAAO,IAAI,CAAC,SAAS,CAAC,GAAG,CAAC,CAAC;SAC5B;QAED,OAAO,IAAI,CAAC,YAAY,CAAC;IAC3B,CAAC;IAEO,UAAU,CAAC,GAAqD;QACtE,IAAI,CAAC,IAAI,GAAG,GAAG,CAAC;QAChB,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC,eAAe,CAAC,GAAG,CAAC,CAAC;QAC3C,IAAI,CAAC,aAAa,GAAG,IAAI,CAAC,SAAS,CAAC,kBAAkB,CAClD,GAAG,EAAE,CAAC,KAAa,EAAE,EAAE,CAAC,IAAI,CAAC,kBAAkB,CAAC,GAAG,EAAE,KAAK,CAAC,CAAC,CAAC;IACnE,CAAC;IAEO,eAAe,CAAC,GACiB;QACvC,IAAI,UAAU,CAAC,GAAG,CAAC,EAAE;YACnB,OAAO,gBAAgB,CAAC;SACzB;QAED,IAAI,eAAe,CAAC,GAAG,CAAC,EAAE;YACxB,OAAO,qBAAqB,CAAC;SAC9B;QAED,MAAM,wBAAwB,CAAC,SAAS,EAAE,GAAG,CAAC,CAAC;IACjD,CAAC;IAEO,QAAQ;QACd,2FAA2F;QAC3F,2CAA2C;QAC3C,IAAI,CAAC,SAAU,CAAC,OAAO,CAAC,IAAI,CAAC,aAAc,CAAC,CAAC;QAC7C,IAAI,CAAC,YAAY,GAAG,IAAI,CAAC;QACzB,IAAI,CAAC,aAAa,GAAG,IAAI,CAAC;QAC1B,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC;IACnB,CAAC;IAEO,kBAAkB,CAAC,KAAU,EAAE,KAAa;QAClD,IAAI,KAAK,KAAK,IAAI,CAAC,IAAI,EAAE;YACvB,IAAI,CAAC,YAAY,GAAG,KAAK,CAAC;YAC1B,wFAAwF;YACxF,0BAA0B;YAC1B,IAAI,CAAC,IAAK,CAAC,YAAY,EAAE,CAAC;SAC3B;IACH,CAAC;;iHApFU,SAAS;+GAAT,SAAS;sGAAT,SAAS;kBALrB,IAAI;mBAAC;oBACJ,IAAI,EAAE,OAAO;oBACb,IAAI,EAAE,KAAK;oBACX,UAAU,EAAE,IAAI;iBACjB","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ChangeDetectorRef, EventEmitter, OnDestroy, Pipe, PipeTransform, ɵisPromise, ɵisSubscribable} from '@angular/core';\nimport {Observable, Subscribable, Unsubscribable} from 'rxjs';\n\nimport {invalidPipeArgumentError} from './invalid_pipe_argument_error';\n\ninterface SubscriptionStrategy {\n  createSubscription(async: Subscribable<any>|Promise<any>, updateLatestValue: any): Unsubscribable\n      |Promise<any>;\n  dispose(subscription: Unsubscribable|Promise<any>): void;\n}\n\nclass SubscribableStrategy implements SubscriptionStrategy {\n  createSubscription(async: Subscribable<any>, updateLatestValue: any): Unsubscribable {\n    return async.subscribe({\n      next: updateLatestValue,\n      error: (e: any) => {\n        throw e;\n      }\n    });\n  }\n\n  dispose(subscription: Unsubscribable): void {\n    subscription.unsubscribe();\n  }\n}\n\nclass PromiseStrategy implements SubscriptionStrategy {\n  createSubscription(async: Promise<any>, updateLatestValue: (v: any) => any): Promise<any> {\n    return async.then(updateLatestValue, e => {\n      throw e;\n    });\n  }\n\n  dispose(subscription: Promise<any>): void {}\n}\n\nconst _promiseStrategy = new PromiseStrategy();\nconst _subscribableStrategy = new SubscribableStrategy();\n\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 */\n@Pipe({\n  name: 'async',\n  pure: false,\n  standalone: true,\n})\nexport class AsyncPipe implements OnDestroy, PipeTransform {\n  private _ref: ChangeDetectorRef|null;\n  private _latestValue: any = null;\n\n  private _subscription: Unsubscribable|Promise<any>|null = null;\n  private _obj: Subscribable<any>|Promise<any>|EventEmitter<any>|null = null;\n  private _strategy: SubscriptionStrategy|null = null;\n\n  constructor(ref: ChangeDetectorRef) {\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\n  ngOnDestroy(): void {\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\n  // NOTE(@benlesh): Because Observable has deprecated a few call patterns for `subscribe`,\n  // TypeScript has a hard time matching Observable to Subscribable, for more information\n  // see https://github.com/microsoft/TypeScript/issues/43643\n\n  transform<T>(obj: Observable<T>|Subscribable<T>|Promise<T>): T|null;\n  transform<T>(obj: null|undefined): null;\n  transform<T>(obj: Observable<T>|Subscribable<T>|Promise<T>|null|undefined): T|null;\n  transform<T>(obj: Observable<T>|Subscribable<T>|Promise<T>|null|undefined): T|null {\n    if (!this._obj) {\n      if (obj) {\n        this._subscribe(obj);\n      }\n      return this._latestValue;\n    }\n\n    if (obj !== this._obj) {\n      this._dispose();\n      return this.transform(obj);\n    }\n\n    return this._latestValue;\n  }\n\n  private _subscribe(obj: Subscribable<any>|Promise<any>|EventEmitter<any>): void {\n    this._obj = obj;\n    this._strategy = this._selectStrategy(obj);\n    this._subscription = this._strategy.createSubscription(\n        obj, (value: Object) => this._updateLatestValue(obj, value));\n  }\n\n  private _selectStrategy(obj: Subscribable<any>|Promise<any>|\n                          EventEmitter<any>): SubscriptionStrategy {\n    if (ɵisPromise(obj)) {\n      return _promiseStrategy;\n    }\n\n    if (ɵisSubscribable(obj)) {\n      return _subscribableStrategy;\n    }\n\n    throw invalidPipeArgumentError(AsyncPipe, obj);\n  }\n\n  private _dispose(): void {\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\n  private _updateLatestValue(async: any, value: Object): void {\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}\n"]}