1 | /**
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2 | * @license
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3 | * Copyright Google Inc. 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/compiler-cli/src/perform_watch", ["require", "exports", "chokidar", "path", "typescript", "@angular/compiler-cli/src/perform_compile", "@angular/compiler-cli/src/transformers/api", "@angular/compiler-cli/src/transformers/entry_points", "@angular/compiler-cli/src/transformers/util"], 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 | var chokidar = require("chokidar");
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20 | var path = require("path");
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21 | var ts = require("typescript");
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22 | var perform_compile_1 = require("@angular/compiler-cli/src/perform_compile");
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23 | var api = require("@angular/compiler-cli/src/transformers/api");
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24 | var entry_points_1 = require("@angular/compiler-cli/src/transformers/entry_points");
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25 | var util_1 = require("@angular/compiler-cli/src/transformers/util");
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26 | function totalCompilationTimeDiagnostic(timeInMillis) {
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27 | var duration;
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28 | if (timeInMillis > 1000) {
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29 | duration = (timeInMillis / 1000).toPrecision(2) + "s";
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30 | }
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31 | else {
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32 | duration = timeInMillis + "ms";
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33 | }
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34 | return {
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35 | category: ts.DiagnosticCategory.Message,
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36 | messageText: "Total time: " + duration,
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37 | code: api.DEFAULT_ERROR_CODE,
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38 | source: api.SOURCE,
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39 | };
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40 | }
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41 | var FileChangeEvent;
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42 | (function (FileChangeEvent) {
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43 | FileChangeEvent[FileChangeEvent["Change"] = 0] = "Change";
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44 | FileChangeEvent[FileChangeEvent["CreateDelete"] = 1] = "CreateDelete";
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45 | FileChangeEvent[FileChangeEvent["CreateDeleteDir"] = 2] = "CreateDeleteDir";
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46 | })(FileChangeEvent = exports.FileChangeEvent || (exports.FileChangeEvent = {}));
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47 | function createPerformWatchHost(configFileName, reportDiagnostics, existingOptions, createEmitCallback) {
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48 | return {
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49 | reportDiagnostics: reportDiagnostics,
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50 | createCompilerHost: function (options) { return entry_points_1.createCompilerHost({ options: options }); },
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51 | readConfiguration: function () { return perform_compile_1.readConfiguration(configFileName, existingOptions); },
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52 | createEmitCallback: function (options) { return createEmitCallback ? createEmitCallback(options) : undefined; },
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53 | onFileChange: function (options, listener, ready) {
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54 | if (!options.basePath) {
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55 | reportDiagnostics([{
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56 | category: ts.DiagnosticCategory.Error,
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57 | messageText: 'Invalid configuration option. baseDir not specified',
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58 | source: api.SOURCE,
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59 | code: api.DEFAULT_ERROR_CODE
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60 | }]);
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61 | return { close: function () { } };
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62 | }
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63 | var watcher = chokidar.watch(options.basePath, {
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64 | // ignore .dotfiles, .js and .map files.
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65 | // can't ignore other files as we e.g. want to recompile if an `.html` file changes as well.
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66 | ignored: /((^[\/\\])\..)|(\.js$)|(\.map$)|(\.metadata\.json|node_modules)/,
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67 | ignoreInitial: true,
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68 | persistent: true,
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69 | });
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70 | watcher.on('all', function (event, path) {
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71 | switch (event) {
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72 | case 'change':
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73 | listener(FileChangeEvent.Change, path);
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74 | break;
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75 | case 'unlink':
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76 | case 'add':
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77 | listener(FileChangeEvent.CreateDelete, path);
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78 | break;
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79 | case 'unlinkDir':
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80 | case 'addDir':
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81 | listener(FileChangeEvent.CreateDeleteDir, path);
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82 | break;
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83 | }
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84 | });
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85 | watcher.on('ready', ready);
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86 | return { close: function () { return watcher.close(); }, ready: ready };
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87 | },
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88 | setTimeout: (ts.sys.clearTimeout && ts.sys.setTimeout) || setTimeout,
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89 | clearTimeout: (ts.sys.setTimeout && ts.sys.clearTimeout) || clearTimeout,
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90 | };
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91 | }
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92 | exports.createPerformWatchHost = createPerformWatchHost;
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93 | /**
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94 | * The logic in this function is adapted from `tsc.ts` from TypeScript.
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95 | */
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96 | function performWatchCompilation(host) {
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97 | var cachedProgram; // Program cached from last compilation
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98 | var cachedCompilerHost; // CompilerHost cached from last compilation
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99 | var cachedOptions; // CompilerOptions cached from last compilation
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100 | var timerHandleForRecompilation; // Handle for 0.25s wait timer to trigger recompilation
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101 | var ignoreFilesForWatch = new Set();
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102 | var fileCache = new Map();
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103 | var firstCompileResult = doCompilation();
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104 | // Watch basePath, ignoring .dotfiles
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105 | var resolveReadyPromise;
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106 | var readyPromise = new Promise(function (resolve) { return resolveReadyPromise = resolve; });
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107 | // Note: ! is ok as options are filled after the first compilation
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108 | // Note: ! is ok as resolvedReadyPromise is filled by the previous call
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109 | var fileWatcher = host.onFileChange(cachedOptions.options, watchedFileChanged, resolveReadyPromise);
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110 | return { close: close, ready: function (cb) { return readyPromise.then(cb); }, firstCompileResult: firstCompileResult };
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111 | function cacheEntry(fileName) {
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112 | fileName = path.normalize(fileName);
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113 | var entry = fileCache.get(fileName);
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114 | if (!entry) {
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115 | entry = {};
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116 | fileCache.set(fileName, entry);
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117 | }
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118 | return entry;
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119 | }
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120 | function close() {
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121 | fileWatcher.close();
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122 | if (timerHandleForRecompilation) {
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123 | host.clearTimeout(timerHandleForRecompilation);
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124 | timerHandleForRecompilation = undefined;
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125 | }
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126 | }
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127 | // Invoked to perform initial compilation or re-compilation in watch mode
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128 | function doCompilation() {
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129 | if (!cachedOptions) {
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130 | cachedOptions = host.readConfiguration();
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131 | }
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132 | if (cachedOptions.errors && cachedOptions.errors.length) {
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133 | host.reportDiagnostics(cachedOptions.errors);
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134 | return cachedOptions.errors;
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135 | }
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136 | var startTime = Date.now();
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137 | if (!cachedCompilerHost) {
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138 | cachedCompilerHost = host.createCompilerHost(cachedOptions.options);
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139 | var originalWriteFileCallback_1 = cachedCompilerHost.writeFile;
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140 | cachedCompilerHost.writeFile = function (fileName, data, writeByteOrderMark, onError, sourceFiles) {
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141 | if (sourceFiles === void 0) { sourceFiles = []; }
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142 | ignoreFilesForWatch.add(path.normalize(fileName));
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143 | return originalWriteFileCallback_1(fileName, data, writeByteOrderMark, onError, sourceFiles);
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144 | };
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145 | var originalFileExists_1 = cachedCompilerHost.fileExists;
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146 | cachedCompilerHost.fileExists = function (fileName) {
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147 | var ce = cacheEntry(fileName);
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148 | if (ce.exists == null) {
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149 | ce.exists = originalFileExists_1.call(this, fileName);
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150 | }
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151 | return ce.exists;
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152 | };
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153 | var originalGetSourceFile_1 = cachedCompilerHost.getSourceFile;
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154 | cachedCompilerHost.getSourceFile = function (fileName, languageVersion) {
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155 | var ce = cacheEntry(fileName);
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156 | if (!ce.sf) {
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157 | ce.sf = originalGetSourceFile_1.call(this, fileName, languageVersion);
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158 | }
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159 | return ce.sf;
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160 | };
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161 | var originalReadFile_1 = cachedCompilerHost.readFile;
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162 | cachedCompilerHost.readFile = function (fileName) {
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163 | var ce = cacheEntry(fileName);
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164 | if (ce.content == null) {
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165 | ce.content = originalReadFile_1.call(this, fileName);
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166 | }
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167 | return ce.content;
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168 | };
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169 | }
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170 | ignoreFilesForWatch.clear();
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171 | var oldProgram = cachedProgram;
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172 | // We clear out the `cachedProgram` here as a
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173 | // program can only be used as `oldProgram` 1x
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174 | cachedProgram = undefined;
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175 | var compileResult = perform_compile_1.performCompilation({
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176 | rootNames: cachedOptions.rootNames,
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177 | options: cachedOptions.options,
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178 | host: cachedCompilerHost,
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179 | oldProgram: oldProgram,
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180 | emitCallback: host.createEmitCallback(cachedOptions.options)
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181 | });
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182 | if (compileResult.diagnostics.length) {
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183 | host.reportDiagnostics(compileResult.diagnostics);
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184 | }
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185 | var endTime = Date.now();
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186 | if (cachedOptions.options.diagnostics) {
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187 | var totalTime = (endTime - startTime) / 1000;
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188 | host.reportDiagnostics([totalCompilationTimeDiagnostic(endTime - startTime)]);
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189 | }
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190 | var exitCode = perform_compile_1.exitCodeFromResult(compileResult.diagnostics);
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191 | if (exitCode == 0) {
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192 | cachedProgram = compileResult.program;
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193 | host.reportDiagnostics([util_1.createMessageDiagnostic('Compilation complete. Watching for file changes.')]);
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194 | }
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195 | else {
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196 | host.reportDiagnostics([util_1.createMessageDiagnostic('Compilation failed. Watching for file changes.')]);
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197 | }
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198 | return compileResult.diagnostics;
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199 | }
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200 | function resetOptions() {
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201 | cachedProgram = undefined;
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202 | cachedCompilerHost = undefined;
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203 | cachedOptions = undefined;
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204 | }
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205 | function watchedFileChanged(event, fileName) {
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206 | if (cachedOptions && event === FileChangeEvent.Change &&
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207 | // TODO(chuckj): validate that this is sufficient to skip files that were written.
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208 | // This assumes that the file path we write is the same file path we will receive in the
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209 | // change notification.
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210 | path.normalize(fileName) === path.normalize(cachedOptions.project)) {
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211 | // If the configuration file changes, forget everything and start the recompilation timer
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212 | resetOptions();
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213 | }
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214 | else if (event === FileChangeEvent.CreateDelete || event === FileChangeEvent.CreateDeleteDir) {
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215 | // If a file was added or removed, reread the configuration
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216 | // to determine the new list of root files.
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217 | cachedOptions = undefined;
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218 | }
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219 | if (event === FileChangeEvent.CreateDeleteDir) {
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220 | fileCache.clear();
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221 | }
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222 | else {
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223 | fileCache.delete(path.normalize(fileName));
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224 | }
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225 | if (!ignoreFilesForWatch.has(path.normalize(fileName))) {
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226 | // Ignore the file if the file is one that was written by the compiler.
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227 | startTimerForRecompilation();
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228 | }
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229 | }
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230 | // Upon detecting a file change, wait for 250ms and then perform a recompilation. This gives batch
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231 | // operations (such as saving all modified files in an editor) a chance to complete before we kick
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232 | // off a new compilation.
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233 | function startTimerForRecompilation() {
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234 | if (timerHandleForRecompilation) {
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235 | host.clearTimeout(timerHandleForRecompilation);
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236 | }
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237 | timerHandleForRecompilation = host.setTimeout(recompile, 250);
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238 | }
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239 | function recompile() {
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240 | timerHandleForRecompilation = undefined;
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241 | host.reportDiagnostics([util_1.createMessageDiagnostic('File change detected. Starting incremental compilation.')]);
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242 | doCompilation();
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243 | }
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244 | }
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245 | exports.performWatchCompilation = performWatchCompilation;
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246 | });
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247 | //# 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* @license\n * Copyright Google Inc. 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is ok as options are filled after the first compilation\n  // Note: ! is ok as resolvedReadyPromise is filled by the previous call\n  const fileWatcher =\n      host.onFileChange(cachedOptions !.options, watchedFileChanged, resolveReadyPromise !);\n\n  return {close, ready: cb => readyPromise.then(cb), firstCompileResult};\n\n  function cacheEntry(fileName: string): CacheEntry {\n    fileName = path.normalize(fileName);\n    let entry = fileCache.get(fileName);\n    if (!entry) {\n      entry = {};\n      fileCache.set(fileName, entry);\n    }\n    return entry;\n  }\n\n  function close() {\n    fileWatcher.close();\n    if (timerHandleForRecompilation) {\n      host.clearTimeout(timerHandleForRecompilation);\n      timerHandleForRecompilation = undefined;\n    }\n  }\n\n  // Invoked to perform initial compilation or re-compilation in watch mode\n  function doCompilation(): Diagnostics {\n    if (!cachedOptions) {\n      cachedOptions = host.readConfiguration();\n    }\n    if (cachedOptions.errors && cachedOptions.errors.length) {\n      host.reportDiagnostics(cachedOptions.errors);\n      return cachedOptions.errors;\n    }\n    const startTime = Date.now();\n    if (!cachedCompilerHost) {\n      cachedCompilerHost = host.createCompilerHost(cachedOptions.options);\n      const originalWriteFileCallback = cachedCompilerHost.writeFile;\n      cachedCompilerHost.writeFile = function(\n          fileName: string, data: string, writeByteOrderMark: boolean,\n          onError?: (message: string) => void, sourceFiles: ReadonlyArray<ts.SourceFile> = []) {\n        ignoreFilesForWatch.add(path.normalize(fileName));\n        return originalWriteFileCallback(fileName, data, writeByteOrderMark, onError, sourceFiles);\n      };\n      const originalFileExists = cachedCompilerHost.fileExists;\n      cachedCompilerHost.fileExists = function(fileName: string) {\n        const ce = cacheEntry(fileName);\n        if (ce.exists == null) {\n          ce.exists = originalFileExists.call(this, fileName);\n        }\n        return ce.exists !;\n      };\n      const originalGetSourceFile = cachedCompilerHost.getSourceFile;\n      cachedCompilerHost.getSourceFile = function(\n          fileName: string, languageVersion: ts.ScriptTarget) {\n        const ce = cacheEntry(fileName);\n        if (!ce.sf) {\n          ce.sf = originalGetSourceFile.call(this, fileName, languageVersion);\n        }\n        return ce.sf !;\n      };\n      const originalReadFile = cachedCompilerHost.readFile;\n      cachedCompilerHost.readFile = function(fileName: string) {\n        const ce = cacheEntry(fileName);\n        if (ce.content == null) {\n          ce.content = originalReadFile.call(this, fileName);\n        }\n        return ce.content !;\n      };\n    }\n    ignoreFilesForWatch.clear();\n    const oldProgram = cachedProgram;\n    // We clear out the `cachedProgram` here as a\n    // program can only be used as `oldProgram` 1x\n    cachedProgram = undefined;\n    const compileResult = performCompilation({\n      rootNames: cachedOptions.rootNames,\n      options: cachedOptions.options,\n      host: cachedCompilerHost,\n      oldProgram: oldProgram,\n      emitCallback: host.createEmitCallback(cachedOptions.options)\n    });\n\n    if (compileResult.diagnostics.length) {\n      host.reportDiagnostics(compileResult.diagnostics);\n    }\n\n    const endTime = Date.now();\n    if (cachedOptions.options.diagnostics) {\n      const totalTime = (endTime - startTime) / 1000;\n      host.reportDiagnostics([totalCompilationTimeDiagnostic(endTime - startTime)]);\n    }\n    const exitCode = exitCodeFromResult(compileResult.diagnostics);\n    if (exitCode == 0) {\n      cachedProgram = compileResult.program;\n      host.reportDiagnostics(\n          [createMessageDiagnostic('Compilation complete. Watching for file changes.')]);\n    } else {\n      host.reportDiagnostics(\n          [createMessageDiagnostic('Compilation failed. Watching for file changes.')]);\n    }\n\n    return compileResult.diagnostics;\n  }\n\n  function resetOptions() {\n    cachedProgram = undefined;\n    cachedCompilerHost = undefined;\n    cachedOptions = undefined;\n  }\n\n  function watchedFileChanged(event: FileChangeEvent, fileName: string) {\n    if (cachedOptions && event === FileChangeEvent.Change &&\n        // TODO(chuckj): validate that this is sufficient to skip files that were written.\n        // This assumes that the file path we write is the same file path we will receive in the\n        // change notification.\n        path.normalize(fileName) === path.normalize(cachedOptions.project)) {\n      // If the configuration file changes, forget everything and start the recompilation timer\n      resetOptions();\n    } else if (\n        event === FileChangeEvent.CreateDelete || event === FileChangeEvent.CreateDeleteDir) {\n      // If a file was added or removed, reread the configuration\n      // to determine the new list of root files.\n      cachedOptions = undefined;\n    }\n\n    if (event === FileChangeEvent.CreateDeleteDir) {\n      fileCache.clear();\n    } else {\n      fileCache.delete(path.normalize(fileName));\n    }\n\n    if (!ignoreFilesForWatch.has(path.normalize(fileName))) {\n      // Ignore the file if the file is one that was written by the compiler.\n      startTimerForRecompilation();\n    }\n  }\n\n  // Upon detecting a file change, wait for 250ms and then perform a recompilation. This gives batch\n  // operations (such as saving all modified files in an editor) a chance to complete before we kick\n  // off a new compilation.\n  function startTimerForRecompilation() {\n    if (timerHandleForRecompilation) {\n      host.clearTimeout(timerHandleForRecompilation);\n    }\n    timerHandleForRecompilation = host.setTimeout(recompile, 250);\n  }\n\n  function recompile() {\n    timerHandleForRecompilation = undefined;\n    host.reportDiagnostics(\n        [createMessageDiagnostic('File change detected. Starting incremental compilation.')]);\n    doCompilation();\n  }\n}\n"]} |
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