46b212706b
This contains major changes to the compiler, bootstrap of the platforms and test environment initialization. Main part of #10043 Closes #10164 BREAKING CHANGE: - Semantics and name of `@AppModule` (now `@NgModule`) changed quite a bit. This is actually not breaking as `@AppModules` were not part of rc.4. We will have detailed docs on `@NgModule` separately. - `coreLoadAndBootstrap` and `coreBootstrap` can't be used any more (without migration support). Use `bootstrapModule` / `bootstrapModuleFactory` instead. - All Components listed in routes have to be part of the `declarations` of an NgModule. Either directly on the bootstrap module / lazy loaded module, or in an NgModule imported by them.
47 lines
1.3 KiB
TypeScript
47 lines
1.3 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 {Injectable, PipeMetadata, resolveForwardRef} from '@angular/core';
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import {ReflectorReader, reflector} from '../core_private';
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import {BaseException} from '../src/facade/exceptions';
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import {Type, isPresent, stringify} from '../src/facade/lang';
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function _isPipeMetadata(type: any): boolean {
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return type instanceof PipeMetadata;
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}
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/**
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* Resolve a `Type` for {@link PipeMetadata}.
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*
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* This interface can be overridden by the application developer to create custom behavior.
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*
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* See {@link Compiler}
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*/
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@Injectable()
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export class PipeResolver {
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constructor(private _reflector: ReflectorReader = reflector) {}
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/**
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* Return {@link PipeMetadata} for a given `Type`.
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*/
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resolve(type: Type, throwIfNotFound = true): PipeMetadata {
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var metas = this._reflector.annotations(resolveForwardRef(type));
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if (isPresent(metas)) {
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var annotation = metas.find(_isPipeMetadata);
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if (isPresent(annotation)) {
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return annotation;
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}
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}
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if (throwIfNotFound) {
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throw new BaseException(`No Pipe decorator found on ${stringify(type)}`);
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}
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return null;
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}
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}
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