41 lines
1.5 KiB
TypeScript
41 lines
1.5 KiB
TypeScript
import {HostViewFactoryRef} from 'angular2/src/core/linker/view_ref';
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import {Injectable} from 'angular2/src/core/di';
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import {Type, isBlank, stringify} from 'angular2/src/facade/lang';
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import {BaseException} from 'angular2/src/facade/exceptions';
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import {PromiseWrapper} from 'angular2/src/facade/async';
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import {reflector} from 'angular2/src/core/reflection/reflection';
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import {HostViewFactory} from 'angular2/src/core/linker/view';
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import {HostViewFactoryRef_} from 'angular2/src/core/linker/view_ref';
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/**
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* Low-level service for compiling {@link Component}s into {@link ProtoViewRef ProtoViews}s, which
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* can later be used to create and render a Component instance.
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*
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* Most applications should instead use higher-level {@link DynamicComponentLoader} service, which
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* both compiles and instantiates a Component.
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*/
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export abstract class Compiler {
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abstract compileInHost(componentType: Type): Promise<HostViewFactoryRef>;
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abstract clearCache();
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}
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function isHostViewFactory(type: any): boolean {
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return type instanceof HostViewFactory;
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}
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@Injectable()
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export class Compiler_ extends Compiler {
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compileInHost(componentType: Type): Promise<HostViewFactoryRef_> {
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var metadatas = reflector.annotations(componentType);
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var hostViewFactory = metadatas.find(isHostViewFactory);
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if (isBlank(hostViewFactory)) {
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throw new BaseException(`No precompiled component ${stringify(componentType)} found`);
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}
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return PromiseWrapper.resolve(new HostViewFactoryRef_(hostViewFactory));
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}
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clearCache() {}
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}
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