44 lines
1.2 KiB
TypeScript
44 lines
1.2 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {PipeResolver} from '@angular/compiler';
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import {Compiler, Injectable, Injector, Pipe, Type} from '@angular/core';
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@Injectable()
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export class MockPipeResolver extends PipeResolver {
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private _pipes = new Map<Type<any>, Pipe>();
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constructor(private _injector: Injector) { super(); }
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private get _compiler(): Compiler { return this._injector.get(Compiler); }
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private _clearCacheFor(pipe: Type<any>) { this._compiler.clearCacheFor(pipe); }
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/**
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* Overrides the {@link Pipe} for a pipe.
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*/
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setPipe(type: Type<any>, metadata: Pipe): void {
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this._pipes.set(type, metadata);
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this._clearCacheFor(type);
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}
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/**
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* Returns the {@link Pipe} for a pipe:
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* - Set the {@link Pipe} to the overridden view when it exists or fallback to the
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* default
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* `PipeResolver`, see `setPipe`.
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*/
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resolve(type: Type<any>, throwIfNotFound = true): Pipe {
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let metadata = this._pipes.get(type);
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if (!metadata) {
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metadata = super.resolve(type, throwIfNotFound);
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}
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return metadata;
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}
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}
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