1 | /**
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2 | * @license
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3 | * Copyright Google LLC All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | (function (factory) {
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9 | if (typeof module === "object" && typeof module.exports === "object") {
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10 | var v = factory(require, exports);
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11 | if (v !== undefined) module.exports = v;
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12 | }
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13 | else if (typeof define === "function" && define.amd) {
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14 | define("@angular/language-service/src/reflector_host", ["require", "exports", "@angular/compiler-cli/src/language_services", "path", "typescript"], factory);
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15 | }
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16 | })(function (require, exports) {
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17 | ;
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18 | Object.defineProperty(exports, "__esModule", { value: true });
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19 | exports.ReflectorHost = void 0;
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20 | var language_services_1 = require("@angular/compiler-cli/src/language_services");
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21 | var path = require("path");
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22 | var ts = require("typescript");
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23 | var ReflectorModuleModuleResolutionHost = /** @class */ (function () {
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24 | function ReflectorModuleModuleResolutionHost(tsLSHost, getProgram) {
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25 | this.tsLSHost = tsLSHost;
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26 | this.getProgram = getProgram;
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27 | this.metadataCollector = new language_services_1.MetadataCollector({
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28 | // Note: verboseInvalidExpressions is important so that
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29 | // the collector will collect errors instead of throwing
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30 | verboseInvalidExpression: true,
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31 | });
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32 | if (tsLSHost.directoryExists) {
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33 | this.directoryExists = function (directoryName) { return tsLSHost.directoryExists(directoryName); };
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34 | }
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35 | if (tsLSHost.realpath) {
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36 | this.realpath = function (path) { return tsLSHost.realpath(path); };
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37 | }
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38 | }
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39 | ReflectorModuleModuleResolutionHost.prototype.fileExists = function (fileName) {
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40 | // TypeScript resolution logic walks through the following sequence in order:
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41 | // package.json (read "types" field) -> .ts -> .tsx -> .d.ts
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42 | // For more info, see
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43 | // https://www.typescriptlang.org/docs/handbook/module-resolution.html
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44 | // For Angular specifically, we can skip .tsx lookup
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45 | if (fileName.endsWith('.tsx')) {
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46 | return false;
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47 | }
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48 | if (this.tsLSHost.fileExists) {
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49 | return this.tsLSHost.fileExists(fileName);
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50 | }
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51 | return !!this.tsLSHost.getScriptSnapshot(fileName);
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52 | };
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53 | ReflectorModuleModuleResolutionHost.prototype.readFile = function (fileName) {
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54 | // readFile() is used by TypeScript to read package.json during module
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55 | // resolution, and it's used by Angular to read metadata.json during
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56 | // metadata resolution.
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57 | if (this.tsLSHost.readFile) {
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58 | return this.tsLSHost.readFile(fileName);
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59 | }
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60 | // As a fallback, read the JSON files from the editor snapshot.
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61 | var snapshot = this.tsLSHost.getScriptSnapshot(fileName);
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62 | if (!snapshot) {
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63 | // MetadataReaderHost readFile() declaration should be
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64 | // `readFile(fileName: string): string | undefined`
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65 | return undefined;
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66 | }
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67 | return snapshot.getText(0, snapshot.getLength());
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68 | };
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69 | ReflectorModuleModuleResolutionHost.prototype.getSourceFileMetadata = function (fileName) {
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70 | var sf = this.getProgram().getSourceFile(fileName);
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71 | return sf ? this.metadataCollector.getMetadata(sf) : undefined;
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72 | };
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73 | ReflectorModuleModuleResolutionHost.prototype.cacheMetadata = function (fileName) {
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74 | // Don't cache the metadata for .ts files as they might change in the editor!
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75 | return fileName.endsWith('.d.ts');
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76 | };
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77 | return ReflectorModuleModuleResolutionHost;
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78 | }());
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79 | var ReflectorHost = /** @class */ (function () {
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80 | function ReflectorHost(getProgram, tsLSHost) {
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81 | this.tsLSHost = tsLSHost;
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82 | this.metadataReaderCache = language_services_1.createMetadataReaderCache();
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83 | // tsLSHost.getCurrentDirectory() returns the directory where tsconfig.json
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84 | // is located. This is not the same as process.cwd() because the language
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85 | // service host sets the "project root path" as its current directory.
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86 | var currentDir = tsLSHost.getCurrentDirectory();
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87 | this.fakeContainingPath = currentDir ? path.join(currentDir, 'fakeContainingFile.ts') : '';
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88 | this.hostAdapter = new ReflectorModuleModuleResolutionHost(tsLSHost, getProgram);
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89 | this.moduleResolutionCache = ts.createModuleResolutionCache(currentDir, function (s) { return s; }, // getCanonicalFileName
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90 | tsLSHost.getCompilationSettings());
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91 | }
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92 | ReflectorHost.prototype.getMetadataFor = function (modulePath) {
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93 | return language_services_1.readMetadata(modulePath, this.hostAdapter, this.metadataReaderCache);
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94 | };
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95 | ReflectorHost.prototype.moduleNameToFileName = function (moduleName, containingFile) {
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96 | if (!containingFile) {
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97 | if (moduleName.startsWith('.')) {
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98 | throw new Error('Resolution of relative paths requires a containing file.');
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99 | }
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100 | if (!this.fakeContainingPath) {
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101 | // If current directory is empty then the file must belong to an inferred
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102 | // project (no tsconfig.json), in which case it's not possible to resolve
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103 | // the module without the caller explicitly providing a containing file.
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104 | throw new Error("Could not resolve '" + moduleName + "' without a containing file.");
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105 | }
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106 | containingFile = this.fakeContainingPath;
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107 | }
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108 | var compilerOptions = this.tsLSHost.getCompilationSettings();
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109 | var resolved = ts.resolveModuleName(moduleName, containingFile, compilerOptions, this.hostAdapter, this.moduleResolutionCache)
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110 | .resolvedModule;
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111 | return resolved ? resolved.resolvedFileName : null;
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112 | };
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113 | ReflectorHost.prototype.getOutputName = function (filePath) {
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114 | return filePath;
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115 | };
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116 | return ReflectorHost;
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117 | }());
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118 | exports.ReflectorHost = ReflectorHost;
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119 | });
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {StaticSymbolResolverHost} from '@angular/compiler';\nimport {createMetadataReaderCache, MetadataCollector, MetadataReaderHost, readMetadata} from '@angular/compiler-cli/src/language_services';\nimport * as path from 'path';\nimport * as ts from 'typescript';\n\nclass ReflectorModuleModuleResolutionHost implements ts.ModuleResolutionHost, MetadataReaderHost {\n  private readonly metadataCollector = new MetadataCollector({\n    // Note: verboseInvalidExpressions is important so that\n    // the collector will collect errors instead of throwing\n    verboseInvalidExpression: true,\n  });\n\n  readonly directoryExists?: (directoryName: string) => boolean;\n  // Resolve a symbolic link.\n  realpath?: (path: string) => string;\n\n  constructor(\n      private readonly tsLSHost: ts.LanguageServiceHost,\n      private readonly getProgram: () => ts.Program) {\n    if (tsLSHost.directoryExists) {\n      this.directoryExists = directoryName => tsLSHost.directoryExists!(directoryName);\n    }\n    if (tsLSHost.realpath) {\n      this.realpath = path => tsLSHost.realpath!(path);\n    }\n  }\n\n  fileExists(fileName: string): boolean {\n    // TypeScript resolution logic walks through the following sequence in order:\n    // package.json (read \"types\" field) -> .ts -> .tsx -> .d.ts\n    // For more info, see\n    // https://www.typescriptlang.org/docs/handbook/module-resolution.html\n    // For Angular specifically, we can skip .tsx lookup\n    if (fileName.endsWith('.tsx')) {\n      return false;\n    }\n    if (this.tsLSHost.fileExists) {\n      return this.tsLSHost.fileExists(fileName);\n    }\n    return !!this.tsLSHost.getScriptSnapshot(fileName);\n  }\n\n  readFile(fileName: string): string {\n    // readFile() is used by TypeScript to read package.json during module\n    // resolution, and it's used by Angular to read metadata.json during\n    // metadata resolution.\n    if (this.tsLSHost.readFile) {\n      return this.tsLSHost.readFile(fileName)!;\n    }\n    // As a fallback, read the JSON files from the editor snapshot.\n    const snapshot = this.tsLSHost.getScriptSnapshot(fileName);\n    if (!snapshot) {\n      // MetadataReaderHost readFile() declaration should be\n      // `readFile(fileName: string): string | undefined`\n      return undefined!;\n    }\n    return snapshot.getText(0, snapshot.getLength());\n  }\n\n  getSourceFileMetadata(fileName: string) {\n    const sf = this.getProgram().getSourceFile(fileName);\n    return sf ? this.metadataCollector.getMetadata(sf) : undefined;\n  }\n\n  cacheMetadata(fileName: string) {\n    // Don't cache the metadata for .ts files as they might change in the editor!\n    return fileName.endsWith('.d.ts');\n  }\n}\n\nexport class ReflectorHost implements StaticSymbolResolverHost {\n  private readonly hostAdapter: ReflectorModuleModuleResolutionHost;\n  private readonly metadataReaderCache = createMetadataReaderCache();\n  private readonly moduleResolutionCache: ts.ModuleResolutionCache;\n  private readonly fakeContainingPath: string;\n\n  constructor(getProgram: () => ts.Program, private readonly tsLSHost: ts.LanguageServiceHost) {\n    // tsLSHost.getCurrentDirectory() returns the directory where tsconfig.json\n    // is located. This is not the same as process.cwd() because the language\n    // service host sets the \"project root path\" as its current directory.\n    const currentDir = tsLSHost.getCurrentDirectory();\n    this.fakeContainingPath = currentDir ? path.join(currentDir, 'fakeContainingFile.ts') : '';\n    this.hostAdapter = new ReflectorModuleModuleResolutionHost(tsLSHost, getProgram);\n    this.moduleResolutionCache = ts.createModuleResolutionCache(\n        currentDir,\n        s => s,  // getCanonicalFileName\n        tsLSHost.getCompilationSettings());\n  }\n\n  getMetadataFor(modulePath: string): {[key: string]: any}[]|undefined {\n    return readMetadata(modulePath, this.hostAdapter, this.metadataReaderCache);\n  }\n\n  moduleNameToFileName(moduleName: string, containingFile?: string): string|null {\n    if (!containingFile) {\n      if (moduleName.startsWith('.')) {\n        throw new Error('Resolution of relative paths requires a containing file.');\n      }\n      if (!this.fakeContainingPath) {\n        // If current directory is empty then the file must belong to an inferred\n        // project (no tsconfig.json), in which case it's not possible to resolve\n        // the module without the caller explicitly providing a containing file.\n        throw new Error(`Could not resolve '${moduleName}' without a containing file.`);\n      }\n      containingFile = this.fakeContainingPath;\n    }\n    const compilerOptions = this.tsLSHost.getCompilationSettings();\n    const resolved = ts.resolveModuleName(\n                           moduleName, containingFile, compilerOptions, this.hostAdapter,\n                           this.moduleResolutionCache)\n                         .resolvedModule;\n    return resolved ? resolved.resolvedFileName : null;\n  }\n\n  getOutputName(filePath: string) {\n    return filePath;\n  }\n}\n"]} |
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