260 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			260 lines
		
	
	
		
			10 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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| import {AotCompilerHost, AotSummaryResolver, CompileMetadataResolver, CompilerConfig, DEFAULT_INTERPOLATION_CONFIG, DirectiveNormalizer, DirectiveResolver, DomElementSchemaRegistry, HtmlParser, I18NHtmlParser, InterpolationConfig, JitSummaryResolver, Lexer, NgAnalyzedModules, NgModuleResolver, ParseTreeResult, Parser, PipeResolver, ResourceLoader, StaticReflector, StaticSymbol, StaticSymbolCache, StaticSymbolResolver, SummaryResolver, TemplateParser, analyzeNgModules, createOfflineCompileUrlResolver, extractProgramSymbols} from '@angular/compiler';
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| import {ViewEncapsulation, ɵConsole as Console} from '@angular/core';
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| import {CompilerHostContext} from 'compiler-cli';
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| import * as fs from 'fs';
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| import * as path from 'path';
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| import * as ts from 'typescript';
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| 
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| import {DiagnosticTemplateInfo} from '../../src/diagnostics/expression_diagnostics';
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| import {getClassFromStaticSymbol, getClassMembers, getPipesTable, getSymbolQuery} from '../../src/diagnostics/typescript_symbols';
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| import {Directory, MockAotContext} from '../mocks';
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| 
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| function calcRootPath() {
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|   const moduleFilename = module.filename.replace(/\\/g, '/');
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|   const distIndex = moduleFilename.indexOf('/dist/all');
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|   return moduleFilename.substr(0, distIndex);
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| }
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| 
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| const realFiles = new Map<string, string>();
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| 
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| export class MockLanguageServiceHost implements ts.LanguageServiceHost, CompilerHostContext {
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|   private options: ts.CompilerOptions;
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|   private context: MockAotContext;
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|   private assumedExist = new Set<string>();
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| 
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|   constructor(private scripts: string[], files: Directory, currentDirectory: string = '/') {
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|     this.options = {
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|       target: ts.ScriptTarget.ES5,
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|       module: ts.ModuleKind.CommonJS,
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|       moduleResolution: ts.ModuleResolutionKind.NodeJs,
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|       emitDecoratorMetadata: true,
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|       experimentalDecorators: true,
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|       removeComments: false,
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|       noImplicitAny: false,
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|       skipLibCheck: true,
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|       skipDefaultLibCheck: true,
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|       strictNullChecks: true,
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|       baseUrl: currentDirectory,
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|       lib: ['lib.es2015.d.ts', 'lib.dom.d.ts'],
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|       paths: {'@angular/*': [calcRootPath() + '/packages/*']}
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|     };
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|     this.context = new MockAotContext(currentDirectory, files);
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|   }
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| 
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|   getCompilationSettings(): ts.CompilerOptions { return this.options; }
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| 
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|   getScriptFileNames(): string[] { return this.scripts; }
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| 
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|   getScriptVersion(fileName: string): string { return '0'; }
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| 
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|   getScriptSnapshot(fileName: string): ts.IScriptSnapshot|undefined {
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|     const content = this.internalReadFile(fileName);
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|     if (content) {
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|       return ts.ScriptSnapshot.fromString(content);
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|     }
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|   }
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| 
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|   getCurrentDirectory(): string { return this.context.currentDirectory; }
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| 
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|   getDefaultLibFileName(options: ts.CompilerOptions): string { return 'lib.d.ts'; }
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| 
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|   readFile(fileName: string): string { return this.internalReadFile(fileName) as string; }
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| 
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|   readResource(fileName: string): Promise<string> { return Promise.resolve(''); }
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| 
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|   assumeFileExists(fileName: string): void { this.assumedExist.add(fileName); }
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| 
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|   fileExists(fileName: string): boolean {
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|     return this.assumedExist.has(fileName) || this.internalReadFile(fileName) != null;
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|   }
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| 
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|   private internalReadFile(fileName: string): string|undefined {
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|     let basename = path.basename(fileName);
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|     if (/^lib.*\.d\.ts$/.test(basename)) {
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|       let libPath = path.dirname(ts.getDefaultLibFilePath(this.getCompilationSettings()));
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|       fileName = path.join(libPath, basename);
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|     }
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|     if (fileName.startsWith('app/')) {
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|       fileName = path.join(this.context.currentDirectory, fileName);
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|     }
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|     if (this.context.fileExists(fileName)) {
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|       return this.context.readFile(fileName);
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|     }
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|     if (realFiles.has(fileName)) {
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|       return realFiles.get(fileName);
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|     }
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|     if (fs.existsSync(fileName)) {
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|       const content = fs.readFileSync(fileName, 'utf8');
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|       realFiles.set(fileName, content);
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|       return content;
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|     }
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|     return undefined;
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|   }
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| }
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| 
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| const staticSymbolCache = new StaticSymbolCache();
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| const summaryResolver = new AotSummaryResolver(
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|     {
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|       loadSummary(filePath: string) { return null; },
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|       isSourceFile(sourceFilePath: string) { return true; },
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|       getOutputFileName(sourceFilePath: string) { return sourceFilePath; }
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|     },
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|     staticSymbolCache);
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| 
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| export class DiagnosticContext {
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|   _analyzedModules: NgAnalyzedModules;
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|   _staticSymbolResolver: StaticSymbolResolver|undefined;
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|   _reflector: StaticReflector|undefined;
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|   _errors: {e: any, path?: string}[] = [];
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|   _resolver: CompileMetadataResolver|undefined;
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|   _refletor: StaticReflector;
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| 
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|   constructor(
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|       public service: ts.LanguageService, public program: ts.Program,
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|       public checker: ts.TypeChecker, public host: AotCompilerHost) {}
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| 
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|   private collectError(e: any, path?: string) { this._errors.push({e, path}); }
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| 
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|   private get staticSymbolResolver(): StaticSymbolResolver {
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|     let result = this._staticSymbolResolver;
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|     if (!result) {
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|       result = this._staticSymbolResolver = new StaticSymbolResolver(
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|           this.host, staticSymbolCache, summaryResolver,
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|           (e, filePath) => this.collectError(e, filePath));
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|     }
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|     return result;
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|   }
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| 
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|   get reflector(): StaticReflector {
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|     if (!this._reflector) {
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|       const ssr = this.staticSymbolResolver;
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|       const result = this._reflector = new StaticReflector(
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|           summaryResolver, ssr, [], [], (e, filePath) => this.collectError(e, filePath !));
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|       this._reflector = result;
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|       return result;
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|     }
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|     return this._reflector;
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|   }
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| 
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|   get resolver(): CompileMetadataResolver {
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|     let result = this._resolver;
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|     if (!result) {
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|       const moduleResolver = new NgModuleResolver(this.reflector);
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|       const directiveResolver = new DirectiveResolver(this.reflector);
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|       const pipeResolver = new PipeResolver(this.reflector);
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|       const elementSchemaRegistry = new DomElementSchemaRegistry();
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|       const resourceLoader = new class extends ResourceLoader {
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|         get(url: string): Promise<string> { return Promise.resolve(''); }
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|       };
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|       const urlResolver = createOfflineCompileUrlResolver();
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|       const htmlParser = new class extends HtmlParser {
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|         parse(
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|             source: string, url: string, parseExpansionForms: boolean = false,
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|             interpolationConfig: InterpolationConfig = DEFAULT_INTERPOLATION_CONFIG):
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|             ParseTreeResult {
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|           return new ParseTreeResult([], []);
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|         }
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|       };
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| 
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|       // This tracks the CompileConfig in codegen.ts. Currently these options
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|       // are hard-coded.
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|       const config =
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|           new CompilerConfig({defaultEncapsulation: ViewEncapsulation.Emulated, useJit: false});
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|       const directiveNormalizer =
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|           new DirectiveNormalizer(resourceLoader, urlResolver, htmlParser, config);
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| 
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|       result = this._resolver = new CompileMetadataResolver(
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|           config, moduleResolver, directiveResolver, pipeResolver, new JitSummaryResolver(),
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|           elementSchemaRegistry, directiveNormalizer, new Console(), staticSymbolCache,
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|           this.reflector, (error, type) => this.collectError(error, type && type.filePath));
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|     }
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|     return result;
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|   }
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| 
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|   get analyzedModules(): NgAnalyzedModules {
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|     let analyzedModules = this._analyzedModules;
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|     if (!analyzedModules) {
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|       const analyzeHost = {isSourceFile(filePath: string) { return true; }};
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|       const programSymbols = extractProgramSymbols(
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|           this.staticSymbolResolver, this.program.getSourceFiles().map(sf => sf.fileName),
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|           analyzeHost);
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| 
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|       analyzedModules = this._analyzedModules =
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|           analyzeNgModules(programSymbols, analyzeHost, this.resolver);
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|     }
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|     return analyzedModules;
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|   }
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| 
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|   getStaticSymbol(path: string, name: string): StaticSymbol {
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|     return staticSymbolCache.get(path, name);
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|   }
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| }
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| 
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| function compileTemplate(context: DiagnosticContext, type: StaticSymbol, template: string) {
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|   // Compiler the template string.
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|   const resolvedMetadata = context.resolver.getNonNormalizedDirectiveMetadata(type);
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|   const metadata = resolvedMetadata && resolvedMetadata.metadata;
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|   if (metadata) {
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|     const rawHtmlParser = new HtmlParser();
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|     const htmlParser = new I18NHtmlParser(rawHtmlParser);
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|     const expressionParser = new Parser(new Lexer());
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|     const config = new CompilerConfig();
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|     const parser = new TemplateParser(
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|         config, context.reflector, expressionParser, new DomElementSchemaRegistry(), htmlParser,
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|         null !, []);
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|     const htmlResult = htmlParser.parse(template, '', true);
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|     const analyzedModules = context.analyzedModules;
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|     // let errors: Diagnostic[]|undefined = undefined;
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|     let ngModule = analyzedModules.ngModuleByPipeOrDirective.get(type);
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|     if (ngModule) {
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|       const resolvedDirectives = ngModule.transitiveModule.directives.map(
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|           d => context.resolver.getNonNormalizedDirectiveMetadata(d.reference));
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|       const directives = removeMissing(resolvedDirectives).map(d => d.metadata.toSummary());
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|       const pipes = ngModule.transitiveModule.pipes.map(
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|           p => context.resolver.getOrLoadPipeMetadata(p.reference).toSummary());
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|       const schemas = ngModule.schemas;
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|       const parseResult = parser.tryParseHtml(htmlResult, metadata, directives, pipes, schemas);
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|       return {
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|         htmlAst: htmlResult.rootNodes,
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|         templateAst: parseResult.templateAst,
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|         directive: metadata, directives, pipes,
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|         parseErrors: parseResult.errors, expressionParser
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|       };
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|     }
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|   }
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| }
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| 
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| export function getDiagnosticTemplateInfo(
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|     context: DiagnosticContext, type: StaticSymbol, templateFile: string,
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|     template: string): DiagnosticTemplateInfo|undefined {
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|   const compiledTemplate = compileTemplate(context, type, template);
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|   if (compiledTemplate && compiledTemplate.templateAst) {
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|     const members = getClassMembers(context.program, context.checker, type);
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|     if (members) {
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|       const sourceFile = context.program.getSourceFile(type.filePath);
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|       const query = getSymbolQuery(
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|           context.program, context.checker, sourceFile,
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|           () =>
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|               getPipesTable(sourceFile, context.program, context.checker, compiledTemplate.pipes));
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|       return {
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|         fileName: templateFile,
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|         offset: 0, query, members,
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|         htmlAst: compiledTemplate.htmlAst,
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|         templateAst: compiledTemplate.templateAst
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|       };
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|     }
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|   }
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| }
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| 
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| function removeMissing<T>(values: (T | null | undefined)[]): T[] {
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|   return values.filter(e => !!e) as T[];
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| }
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