diff options
Diffstat (limited to 'node_modules/webpack/lib/HotModuleReplacementPlugin.js')
| -rw-r--r-- | node_modules/webpack/lib/HotModuleReplacementPlugin.js | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/node_modules/webpack/lib/HotModuleReplacementPlugin.js b/node_modules/webpack/lib/HotModuleReplacementPlugin.js deleted file mode 100644 index 58a1f1f..0000000 --- a/node_modules/webpack/lib/HotModuleReplacementPlugin.js +++ /dev/null @@ -1,425 +0,0 @@ -/* - MIT License http://www.opensource.org/licenses/mit-license.php - Author Tobias Koppers @sokra -*/ -"use strict"; - -const { SyncBailHook } = require("tapable"); -const { RawSource } = require("webpack-sources"); -const Template = require("./Template"); -const ModuleHotAcceptDependency = require("./dependencies/ModuleHotAcceptDependency"); -const ModuleHotDeclineDependency = require("./dependencies/ModuleHotDeclineDependency"); -const ConstDependency = require("./dependencies/ConstDependency"); -const NullFactory = require("./NullFactory"); -const ParserHelpers = require("./ParserHelpers"); - -module.exports = class HotModuleReplacementPlugin { - constructor(options) { - this.options = options || {}; - this.multiStep = this.options.multiStep; - this.fullBuildTimeout = this.options.fullBuildTimeout || 200; - this.requestTimeout = this.options.requestTimeout || 10000; - } - - apply(compiler) { - const multiStep = this.multiStep; - const fullBuildTimeout = this.fullBuildTimeout; - const requestTimeout = this.requestTimeout; - const hotUpdateChunkFilename = - compiler.options.output.hotUpdateChunkFilename; - const hotUpdateMainFilename = compiler.options.output.hotUpdateMainFilename; - compiler.hooks.additionalPass.tapAsync( - "HotModuleReplacementPlugin", - callback => { - if (multiStep) return setTimeout(callback, fullBuildTimeout); - return callback(); - } - ); - - const addParserPlugins = (parser, parserOptions) => { - parser.hooks.expression - .for("__webpack_hash__") - .tap( - "HotModuleReplacementPlugin", - ParserHelpers.toConstantDependencyWithWebpackRequire( - parser, - "__webpack_require__.h()" - ) - ); - parser.hooks.evaluateTypeof - .for("__webpack_hash__") - .tap( - "HotModuleReplacementPlugin", - ParserHelpers.evaluateToString("string") - ); - parser.hooks.evaluateIdentifier.for("module.hot").tap( - { - name: "HotModuleReplacementPlugin", - before: "NodeStuffPlugin" - }, - expr => { - return ParserHelpers.evaluateToIdentifier( - "module.hot", - !!parser.state.compilation.hotUpdateChunkTemplate - )(expr); - } - ); - // TODO webpack 5: refactor this, no custom hooks - if (!parser.hooks.hotAcceptCallback) { - parser.hooks.hotAcceptCallback = new SyncBailHook([ - "expression", - "requests" - ]); - } - if (!parser.hooks.hotAcceptWithoutCallback) { - parser.hooks.hotAcceptWithoutCallback = new SyncBailHook([ - "expression", - "requests" - ]); - } - parser.hooks.call - .for("module.hot.accept") - .tap("HotModuleReplacementPlugin", expr => { - if (!parser.state.compilation.hotUpdateChunkTemplate) { - return false; - } - if (expr.arguments.length >= 1) { - const arg = parser.evaluateExpression(expr.arguments[0]); - let params = []; - let requests = []; - if (arg.isString()) { - params = [arg]; - } else if (arg.isArray()) { - params = arg.items.filter(param => param.isString()); - } - if (params.length > 0) { - params.forEach((param, idx) => { - const request = param.string; - const dep = new ModuleHotAcceptDependency(request, param.range); - dep.optional = true; - dep.loc = Object.create(expr.loc); - dep.loc.index = idx; - parser.state.module.addDependency(dep); - requests.push(request); - }); - if (expr.arguments.length > 1) { - parser.hooks.hotAcceptCallback.call( - expr.arguments[1], - requests - ); - parser.walkExpression(expr.arguments[1]); // other args are ignored - return true; - } else { - parser.hooks.hotAcceptWithoutCallback.call(expr, requests); - return true; - } - } - } - }); - parser.hooks.call - .for("module.hot.decline") - .tap("HotModuleReplacementPlugin", expr => { - if (!parser.state.compilation.hotUpdateChunkTemplate) { - return false; - } - if (expr.arguments.length === 1) { - const arg = parser.evaluateExpression(expr.arguments[0]); - let params = []; - if (arg.isString()) { - params = [arg]; - } else if (arg.isArray()) { - params = arg.items.filter(param => param.isString()); - } - params.forEach((param, idx) => { - const dep = new ModuleHotDeclineDependency( - param.string, - param.range - ); - dep.optional = true; - dep.loc = Object.create(expr.loc); - dep.loc.index = idx; - parser.state.module.addDependency(dep); - }); - } - }); - parser.hooks.expression - .for("module.hot") - .tap("HotModuleReplacementPlugin", ParserHelpers.skipTraversal); - }; - - compiler.hooks.compilation.tap( - "HotModuleReplacementPlugin", - (compilation, { normalModuleFactory }) => { - // This applies the HMR plugin only to the targeted compiler - // It should not affect child compilations - if (compilation.compiler !== compiler) return; - - const hotUpdateChunkTemplate = compilation.hotUpdateChunkTemplate; - if (!hotUpdateChunkTemplate) return; - - compilation.dependencyFactories.set(ConstDependency, new NullFactory()); - compilation.dependencyTemplates.set( - ConstDependency, - new ConstDependency.Template() - ); - - compilation.dependencyFactories.set( - ModuleHotAcceptDependency, - normalModuleFactory - ); - compilation.dependencyTemplates.set( - ModuleHotAcceptDependency, - new ModuleHotAcceptDependency.Template() - ); - - compilation.dependencyFactories.set( - ModuleHotDeclineDependency, - normalModuleFactory - ); - compilation.dependencyTemplates.set( - ModuleHotDeclineDependency, - new ModuleHotDeclineDependency.Template() - ); - - compilation.hooks.record.tap( - "HotModuleReplacementPlugin", - (compilation, records) => { - if (records.hash === compilation.hash) return; - records.hash = compilation.hash; - records.moduleHashs = {}; - for (const module of compilation.modules) { - const identifier = module.identifier(); - records.moduleHashs[identifier] = module.hash; - } - records.chunkHashs = {}; - for (const chunk of compilation.chunks) { - records.chunkHashs[chunk.id] = chunk.hash; - } - records.chunkModuleIds = {}; - for (const chunk of compilation.chunks) { - records.chunkModuleIds[chunk.id] = Array.from( - chunk.modulesIterable, - m => m.id - ); - } - } - ); - let initialPass = false; - let recompilation = false; - compilation.hooks.afterHash.tap("HotModuleReplacementPlugin", () => { - let records = compilation.records; - if (!records) { - initialPass = true; - return; - } - if (!records.hash) initialPass = true; - const preHash = records.preHash || "x"; - const prepreHash = records.prepreHash || "x"; - if (preHash === compilation.hash) { - recompilation = true; - compilation.modifyHash(prepreHash); - return; - } - records.prepreHash = records.hash || "x"; - records.preHash = compilation.hash; - compilation.modifyHash(records.prepreHash); - }); - compilation.hooks.shouldGenerateChunkAssets.tap( - "HotModuleReplacementPlugin", - () => { - if (multiStep && !recompilation && !initialPass) return false; - } - ); - compilation.hooks.needAdditionalPass.tap( - "HotModuleReplacementPlugin", - () => { - if (multiStep && !recompilation && !initialPass) return true; - } - ); - compilation.hooks.additionalChunkAssets.tap( - "HotModuleReplacementPlugin", - () => { - const records = compilation.records; - if (records.hash === compilation.hash) return; - if ( - !records.moduleHashs || - !records.chunkHashs || - !records.chunkModuleIds - ) - return; - for (const module of compilation.modules) { - const identifier = module.identifier(); - let hash = module.hash; - module.hotUpdate = records.moduleHashs[identifier] !== hash; - } - const hotUpdateMainContent = { - h: compilation.hash, - c: {} - }; - for (const key of Object.keys(records.chunkHashs)) { - const chunkId = isNaN(+key) ? key : +key; - const currentChunk = compilation.chunks.find( - chunk => `${chunk.id}` === key - ); - if (currentChunk) { - const newModules = currentChunk - .getModules() - .filter(module => module.hotUpdate); - const allModules = new Set(); - for (const module of currentChunk.modulesIterable) { - allModules.add(module.id); - } - const removedModules = records.chunkModuleIds[chunkId].filter( - id => !allModules.has(id) - ); - if (newModules.length > 0 || removedModules.length > 0) { - const source = hotUpdateChunkTemplate.render( - chunkId, - newModules, - removedModules, - compilation.hash, - compilation.moduleTemplates.javascript, - compilation.dependencyTemplates - ); - const { - path: filename, - info: assetInfo - } = compilation.getPathWithInfo(hotUpdateChunkFilename, { - hash: records.hash, - chunk: currentChunk - }); - compilation.additionalChunkAssets.push(filename); - compilation.emitAsset( - filename, - source, - Object.assign({ hotModuleReplacement: true }, assetInfo) - ); - hotUpdateMainContent.c[chunkId] = true; - currentChunk.files.push(filename); - compilation.hooks.chunkAsset.call(currentChunk, filename); - } - } else { - hotUpdateMainContent.c[chunkId] = false; - } - } - const source = new RawSource(JSON.stringify(hotUpdateMainContent)); - const { - path: filename, - info: assetInfo - } = compilation.getPathWithInfo(hotUpdateMainFilename, { - hash: records.hash - }); - compilation.emitAsset( - filename, - source, - Object.assign({ hotModuleReplacement: true }, assetInfo) - ); - } - ); - - const mainTemplate = compilation.mainTemplate; - - mainTemplate.hooks.hash.tap("HotModuleReplacementPlugin", hash => { - hash.update("HotMainTemplateDecorator"); - }); - - mainTemplate.hooks.moduleRequire.tap( - "HotModuleReplacementPlugin", - (_, chunk, hash, varModuleId) => { - return `hotCreateRequire(${varModuleId})`; - } - ); - - mainTemplate.hooks.requireExtensions.tap( - "HotModuleReplacementPlugin", - source => { - const buf = [source]; - buf.push(""); - buf.push("// __webpack_hash__"); - buf.push( - mainTemplate.requireFn + - ".h = function() { return hotCurrentHash; };" - ); - return Template.asString(buf); - } - ); - - const needChunkLoadingCode = chunk => { - for (const chunkGroup of chunk.groupsIterable) { - if (chunkGroup.chunks.length > 1) return true; - if (chunkGroup.getNumberOfChildren() > 0) return true; - } - return false; - }; - - mainTemplate.hooks.bootstrap.tap( - "HotModuleReplacementPlugin", - (source, chunk, hash) => { - source = mainTemplate.hooks.hotBootstrap.call(source, chunk, hash); - return Template.asString([ - source, - "", - hotInitCode - .replace(/\$require\$/g, mainTemplate.requireFn) - .replace(/\$hash\$/g, JSON.stringify(hash)) - .replace(/\$requestTimeout\$/g, requestTimeout) - .replace( - /\/\*foreachInstalledChunks\*\//g, - needChunkLoadingCode(chunk) - ? "for(var chunkId in installedChunks)" - : `var chunkId = ${JSON.stringify(chunk.id)};` - ) - ]); - } - ); - - mainTemplate.hooks.globalHash.tap( - "HotModuleReplacementPlugin", - () => true - ); - - mainTemplate.hooks.currentHash.tap( - "HotModuleReplacementPlugin", - (_, length) => { - if (isFinite(length)) { - return `hotCurrentHash.substr(0, ${length})`; - } else { - return "hotCurrentHash"; - } - } - ); - - mainTemplate.hooks.moduleObj.tap( - "HotModuleReplacementPlugin", - (source, chunk, hash, varModuleId) => { - return Template.asString([ - `${source},`, - `hot: hotCreateModule(${varModuleId}),`, - "parents: (hotCurrentParentsTemp = hotCurrentParents, hotCurrentParents = [], hotCurrentParentsTemp),", - "children: []" - ]); - } - ); - - // TODO add HMR support for javascript/esm - normalModuleFactory.hooks.parser - .for("javascript/auto") - .tap("HotModuleReplacementPlugin", addParserPlugins); - normalModuleFactory.hooks.parser - .for("javascript/dynamic") - .tap("HotModuleReplacementPlugin", addParserPlugins); - - compilation.hooks.normalModuleLoader.tap( - "HotModuleReplacementPlugin", - context => { - context.hot = true; - } - ); - } - ); - } -}; - -const hotInitCode = Template.getFunctionContent( - require("./HotModuleReplacement.runtime") -); |