/
compiler_factory.ts
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/
compiler_factory.ts
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/**
* @license
* Copyright Google Inc. 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 {Compiler, CompilerFactory, ComponentFactory, CompilerOptions, ModuleWithComponentFactories, Inject, InjectionToken, Optional, PACKAGE_ROOT_URL, PlatformRef, StaticProvider, TRANSLATIONS, Type, isDevMode, platformCore, Ι΅Console as Console, ViewEncapsulation, Injector, NgModuleFactory, TRANSLATIONS_FORMAT, MissingTranslationStrategy,} from '@angular/core';
import {StaticSymbolCache, JitCompiler, ProviderMeta, ExternalReference, I18NHtmlParser, Identifiers, ViewCompiler, CompileMetadataResolver, UrlResolver, TemplateParser, NgModuleCompiler, JitSummaryResolver, SummaryResolver, StyleCompiler, PipeResolver, ElementSchemaRegistry, DomElementSchemaRegistry, ResourceLoader, NgModuleResolver, HtmlParser, CompileReflector, CompilerConfig, DirectiveNormalizer, DirectiveResolver, Lexer, Parser} from '@angular/compiler';
import {JitReflector} from './compiler_reflector';
export const ERROR_COLLECTOR_TOKEN = new InjectionToken('ErrorCollector');
/**
* A default provider for {@link PACKAGE_ROOT_URL} that maps to '/'.
*/
export const DEFAULT_PACKAGE_URL_PROVIDER = {
provide: PACKAGE_ROOT_URL,
useValue: '/'
};
const _NO_RESOURCE_LOADER: ResourceLoader = {
get(url: string): Promise<string>{
throw new Error(
`No ResourceLoader implementation has been provided. Can't read the url "${url}"`);}
};
const baseHtmlParser = new InjectionToken('HtmlParser');
export class CompilerImpl implements Compiler {
private _delegate: JitCompiler;
constructor(
private _injector: Injector, private _metadataResolver: CompileMetadataResolver,
templateParser: TemplateParser, styleCompiler: StyleCompiler, viewCompiler: ViewCompiler,
ngModuleCompiler: NgModuleCompiler, summaryResolver: SummaryResolver<Type<any>>,
compileReflector: CompileReflector, compilerConfig: CompilerConfig, console: Console) {
this._delegate = new JitCompiler(
_metadataResolver, templateParser, styleCompiler, viewCompiler, ngModuleCompiler,
summaryResolver, compileReflector, compilerConfig, console,
this.getExtraNgModuleProviders.bind(this));
}
get injector(): Injector { return this._injector; }
private getExtraNgModuleProviders() {
return [this._metadataResolver.getProviderMetadata(
new ProviderMeta(Compiler, {useValue: this}))];
}
compileModuleSync<T>(moduleType: Type<T>): NgModuleFactory<T> {
return this._delegate.compileModuleSync(moduleType) as NgModuleFactory<T>;
}
compileModuleAsync<T>(moduleType: Type<T>): Promise<NgModuleFactory<T>> {
return this._delegate.compileModuleAsync(moduleType) as Promise<NgModuleFactory<T>>;
}
compileModuleAndAllComponentsSync<T>(moduleType: Type<T>): ModuleWithComponentFactories<T> {
const result = this._delegate.compileModuleAndAllComponentsSync(moduleType);
return {
ngModuleFactory: result.ngModuleFactory as NgModuleFactory<T>,
componentFactories: result.componentFactories as ComponentFactory<any>[],
};
}
compileModuleAndAllComponentsAsync<T>(moduleType: Type<T>):
Promise<ModuleWithComponentFactories<T>> {
return this._delegate.compileModuleAndAllComponentsAsync(moduleType)
.then((result) => ({
ngModuleFactory: result.ngModuleFactory as NgModuleFactory<T>,
componentFactories: result.componentFactories as ComponentFactory<any>[],
}));
}
getNgContentSelectors(component: Type<any>): string[] {
return this._delegate.getNgContentSelectors(component);
}
loadAotSummaries(summaries: () => any[]) { this._delegate.loadAotSummaries(summaries); }
hasAotSummary(ref: Type<any>): boolean { return this._delegate.hasAotSummary(ref); }
getComponentFactory<T>(component: Type<T>): ComponentFactory<T> {
return this._delegate.getComponentFactory(component) as ComponentFactory<T>;
}
clearCache(): void { this._delegate.clearCache(); }
clearCacheFor(type: Type<any>) { this._delegate.clearCacheFor(type); }
}
/**
* A set of providers that provide `JitCompiler` and its dependencies to use for
* template compilation.
*/
export const COMPILER_PROVIDERS = <StaticProvider[]>[
{provide: CompileReflector, useValue: new JitReflector()},
{provide: ResourceLoader, useValue: _NO_RESOURCE_LOADER},
{provide: JitSummaryResolver, deps: []},
{provide: SummaryResolver, useExisting: JitSummaryResolver},
{provide: Console, deps: []},
{provide: Lexer, deps: []},
{provide: Parser, deps: [Lexer]},
{
provide: baseHtmlParser,
useClass: HtmlParser,
deps: [],
},
{
provide: I18NHtmlParser,
useFactory: (parser: HtmlParser, translations: string | null, format: string,
config: CompilerConfig, console: Console) => {
translations = translations || '';
const missingTranslation =
translations ? config.missingTranslation ! : MissingTranslationStrategy.Ignore;
return new I18NHtmlParser(parser, translations, format, missingTranslation, console);
},
deps: [
baseHtmlParser,
[new Optional(), new Inject(TRANSLATIONS)],
[new Optional(), new Inject(TRANSLATIONS_FORMAT)],
[CompilerConfig],
[Console],
]
},
{
provide: HtmlParser,
useExisting: I18NHtmlParser,
},
{
provide: TemplateParser, deps: [CompilerConfig, CompileReflector,
Parser, ElementSchemaRegistry,
I18NHtmlParser, Console]
},
{ provide: DirectiveNormalizer, deps: [ResourceLoader, UrlResolver, HtmlParser, CompilerConfig]},
{ provide: CompileMetadataResolver, deps: [CompilerConfig, NgModuleResolver,
DirectiveResolver, PipeResolver,
SummaryResolver,
ElementSchemaRegistry,
DirectiveNormalizer, Console,
[Optional, StaticSymbolCache],
CompileReflector,
[Optional, ERROR_COLLECTOR_TOKEN]]},
DEFAULT_PACKAGE_URL_PROVIDER,
{ provide: StyleCompiler, deps: [UrlResolver]},
{ provide: ViewCompiler, deps: [CompilerConfig, CompileReflector, ElementSchemaRegistry]},
{ provide: NgModuleCompiler, deps: [CompileReflector] },
{ provide: CompilerConfig, useValue: new CompilerConfig()},
{ provide: Compiler, useClass: CompilerImpl, deps: [Injector, CompileMetadataResolver,
TemplateParser, StyleCompiler,
ViewCompiler, NgModuleCompiler,
SummaryResolver, CompileReflector, CompilerConfig,
Console]},
{ provide: DomElementSchemaRegistry, deps: []},
{ provide: ElementSchemaRegistry, useExisting: DomElementSchemaRegistry},
{ provide: UrlResolver, deps: [PACKAGE_ROOT_URL]},
{ provide: DirectiveResolver, deps: [CompileReflector]},
{ provide: PipeResolver, deps: [CompileReflector]},
{ provide: NgModuleResolver, deps: [CompileReflector]},
];
export class JitCompilerFactory implements CompilerFactory {
private _defaultOptions: CompilerOptions[];
constructor(defaultOptions: CompilerOptions[]) {
const compilerOptions: CompilerOptions = {
useJit: true,
defaultEncapsulation: ViewEncapsulation.Emulated,
missingTranslation: MissingTranslationStrategy.Warning,
enableLegacyTemplate: false,
};
this._defaultOptions = [compilerOptions, ...defaultOptions];
}
createCompiler(options: CompilerOptions[] = []): Compiler {
const opts = _mergeOptions(this._defaultOptions.concat(options));
const injector = Injector.create([
COMPILER_PROVIDERS, {
provide: CompilerConfig,
useFactory: () => {
return new CompilerConfig({
// let explicit values from the compiler options overwrite options
// from the app providers
useJit: opts.useJit,
jitDevMode: isDevMode(),
// let explicit values from the compiler options overwrite options
// from the app providers
defaultEncapsulation: opts.defaultEncapsulation,
missingTranslation: opts.missingTranslation,
enableLegacyTemplate: opts.enableLegacyTemplate,
preserveWhitespaces: opts.preserveWhitespaces,
});
},
deps: []
},
opts.providers !
]);
return injector.get(Compiler);
}
}
function _mergeOptions(optionsArr: CompilerOptions[]): CompilerOptions {
return {
useJit: _lastDefined(optionsArr.map(options => options.useJit)),
defaultEncapsulation: _lastDefined(optionsArr.map(options => options.defaultEncapsulation)),
providers: _mergeArrays(optionsArr.map(options => options.providers !)),
missingTranslation: _lastDefined(optionsArr.map(options => options.missingTranslation)),
enableLegacyTemplate: _lastDefined(optionsArr.map(options => options.enableLegacyTemplate)),
preserveWhitespaces: _lastDefined(optionsArr.map(options => options.preserveWhitespaces)),
};
}
function _lastDefined<T>(args: T[]): T|undefined {
for (let i = args.length - 1; i >= 0; i--) {
if (args[i] !== undefined) {
return args[i];
}
}
return undefined;
}
function _mergeArrays(parts: any[][]): any[] {
const result: any[] = [];
parts.forEach((part) => part && result.push(...part));
return result;
}