e99d721612
When the `enableLegacyTemplate` is set to `false`, `<template>` tags and the `template` attribute are no more used to define angular templates but are treated as regular tag and attribute. The default value is `true`. In order to define a template, you have to use the `<ng-template>` tag. This option applies to your application and all the libraries it uses. That is you should make sure none of them rely on the legacy way to defined templates when this option is turned off (`false`).
84 lines
3.2 KiB
TypeScript
84 lines
3.2 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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/**
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* Transform template html and css into executable code.
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* Intended to be used in a build step.
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*/
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import * as compiler from '@angular/compiler';
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import {AngularCompilerOptions, NgcCliOptions} from '@angular/tsc-wrapped';
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import {readFileSync} from 'fs';
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import * as path from 'path';
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import * as ts from 'typescript';
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import {CompilerHost, CompilerHostContext, ModuleResolutionHostAdapter} from './compiler_host';
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import {PathMappedCompilerHost} from './path_mapped_compiler_host';
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const GENERATED_META_FILES = /\.json$/;
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const PREAMBLE = `/**
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* @fileoverview This file is generated by the Angular template compiler.
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* Do not edit.
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* @suppress {suspiciousCode,uselessCode,missingProperties}
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*/
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/* tslint:disable */
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`;
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export class CodeGenerator {
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constructor(
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private options: AngularCompilerOptions, private program: ts.Program,
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public host: ts.CompilerHost, private compiler: compiler.AotCompiler,
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private ngCompilerHost: CompilerHost) {}
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codegen(): Promise<any> {
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return this.compiler
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.compileAll(this.program.getSourceFiles().map(
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sf => this.ngCompilerHost.getCanonicalFileName(sf.fileName)))
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.then(generatedModules => {
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generatedModules.forEach(generatedModule => {
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const sourceFile = this.program.getSourceFile(generatedModule.srcFileUrl);
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const emitPath = this.ngCompilerHost.calculateEmitPath(generatedModule.genFileUrl);
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const source = GENERATED_META_FILES.test(emitPath) ? generatedModule.source :
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PREAMBLE + generatedModule.source;
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this.host.writeFile(emitPath, source, false, () => {}, [sourceFile]);
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});
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});
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}
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static create(
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options: AngularCompilerOptions, cliOptions: NgcCliOptions, program: ts.Program,
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tsCompilerHost: ts.CompilerHost, compilerHostContext?: CompilerHostContext,
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ngCompilerHost?: CompilerHost): CodeGenerator {
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if (!ngCompilerHost) {
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const usePathMapping = !!options.rootDirs && options.rootDirs.length > 0;
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const context = compilerHostContext || new ModuleResolutionHostAdapter(tsCompilerHost);
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ngCompilerHost = usePathMapping ? new PathMappedCompilerHost(program, options, context) :
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new CompilerHost(program, options, context);
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}
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const transFile = cliOptions.i18nFile;
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const locale = cliOptions.locale;
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let transContent: string = '';
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if (transFile) {
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if (!locale) {
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throw new Error(
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`The translation file (${transFile}) locale must be provided. Use the --locale option.`);
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}
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transContent = readFileSync(transFile, 'utf8');
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}
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const {compiler: aotCompiler} = compiler.createAotCompiler(ngCompilerHost, {
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debug: options.debug === true,
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translations: transContent,
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i18nFormat: cliOptions.i18nFormat,
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locale: cliOptions.locale,
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enableLegacyTemplate: options.enableLegacyTemplate !== false,
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});
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return new CodeGenerator(options, program, tsCompilerHost, aotCompiler, ngCompilerHost);
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}
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}
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