From 81ddf9b700bc48a1f8e472209f080f9c1d9a9b09 Mon Sep 17 00:00:00 2001 From: Piotr Russ Date: Wed, 18 Nov 2020 23:26:45 +0100 Subject: rm node_modules --- .../lib/optimize/ModuleConcatenationPlugin.js | 485 --------------------- 1 file changed, 485 deletions(-) delete mode 100644 node_modules/webpack/lib/optimize/ModuleConcatenationPlugin.js (limited to 'node_modules/webpack/lib/optimize/ModuleConcatenationPlugin.js') diff --git a/node_modules/webpack/lib/optimize/ModuleConcatenationPlugin.js b/node_modules/webpack/lib/optimize/ModuleConcatenationPlugin.js deleted file mode 100644 index 0c5bfd3..0000000 --- a/node_modules/webpack/lib/optimize/ModuleConcatenationPlugin.js +++ /dev/null @@ -1,485 +0,0 @@ -/* - MIT License http://www.opensource.org/licenses/mit-license.php - Author Tobias Koppers @sokra -*/ -"use strict"; - -const HarmonyImportDependency = require("../dependencies/HarmonyImportDependency"); -const ModuleHotAcceptDependency = require("../dependencies/ModuleHotAcceptDependency"); -const ModuleHotDeclineDependency = require("../dependencies/ModuleHotDeclineDependency"); -const ConcatenatedModule = require("./ConcatenatedModule"); -const HarmonyCompatibilityDependency = require("../dependencies/HarmonyCompatibilityDependency"); -const StackedSetMap = require("../util/StackedSetMap"); - -const formatBailoutReason = msg => { - return "ModuleConcatenation bailout: " + msg; -}; - -class ModuleConcatenationPlugin { - constructor(options) { - if (typeof options !== "object") options = {}; - this.options = options; - } - - apply(compiler) { - compiler.hooks.compilation.tap( - "ModuleConcatenationPlugin", - (compilation, { normalModuleFactory }) => { - const handler = (parser, parserOptions) => { - parser.hooks.call.for("eval").tap("ModuleConcatenationPlugin", () => { - // Because of variable renaming we can't use modules with eval. - parser.state.module.buildMeta.moduleConcatenationBailout = "eval()"; - }); - }; - - normalModuleFactory.hooks.parser - .for("javascript/auto") - .tap("ModuleConcatenationPlugin", handler); - normalModuleFactory.hooks.parser - .for("javascript/dynamic") - .tap("ModuleConcatenationPlugin", handler); - normalModuleFactory.hooks.parser - .for("javascript/esm") - .tap("ModuleConcatenationPlugin", handler); - - const bailoutReasonMap = new Map(); - - const setBailoutReason = (module, reason) => { - bailoutReasonMap.set(module, reason); - module.optimizationBailout.push( - typeof reason === "function" - ? rs => formatBailoutReason(reason(rs)) - : formatBailoutReason(reason) - ); - }; - - const getBailoutReason = (module, requestShortener) => { - const reason = bailoutReasonMap.get(module); - if (typeof reason === "function") return reason(requestShortener); - return reason; - }; - - compilation.hooks.optimizeChunkModules.tap( - "ModuleConcatenationPlugin", - (allChunks, modules) => { - const relevantModules = []; - const possibleInners = new Set(); - for (const module of modules) { - // Only harmony modules are valid for optimization - if ( - !module.buildMeta || - module.buildMeta.exportsType !== "namespace" || - !module.dependencies.some( - d => d instanceof HarmonyCompatibilityDependency - ) - ) { - setBailoutReason(module, "Module is not an ECMAScript module"); - continue; - } - - // Some expressions are not compatible with module concatenation - // because they may produce unexpected results. The plugin bails out - // if some were detected upfront. - if ( - module.buildMeta && - module.buildMeta.moduleConcatenationBailout - ) { - setBailoutReason( - module, - `Module uses ${module.buildMeta.moduleConcatenationBailout}` - ); - continue; - } - - // Exports must be known (and not dynamic) - if (!Array.isArray(module.buildMeta.providedExports)) { - setBailoutReason(module, "Module exports are unknown"); - continue; - } - - // Using dependency variables is not possible as this wraps the code in a function - if (module.variables.length > 0) { - setBailoutReason( - module, - `Module uses injected variables (${module.variables - .map(v => v.name) - .join(", ")})` - ); - continue; - } - - // Hot Module Replacement need it's own module to work correctly - if ( - module.dependencies.some( - dep => - dep instanceof ModuleHotAcceptDependency || - dep instanceof ModuleHotDeclineDependency - ) - ) { - setBailoutReason(module, "Module uses Hot Module Replacement"); - continue; - } - - relevantModules.push(module); - - // Module must not be the entry points - if (module.isEntryModule()) { - setBailoutReason(module, "Module is an entry point"); - continue; - } - - // Module must be in any chunk (we don't want to do useless work) - if (module.getNumberOfChunks() === 0) { - setBailoutReason(module, "Module is not in any chunk"); - continue; - } - - // Module must only be used by Harmony Imports - const nonHarmonyReasons = module.reasons.filter( - reason => - !reason.dependency || - !(reason.dependency instanceof HarmonyImportDependency) - ); - if (nonHarmonyReasons.length > 0) { - const importingModules = new Set( - nonHarmonyReasons.map(r => r.module).filter(Boolean) - ); - const importingExplanations = new Set( - nonHarmonyReasons.map(r => r.explanation).filter(Boolean) - ); - const importingModuleTypes = new Map( - Array.from(importingModules).map( - m => /** @type {[string, Set]} */ ([ - m, - new Set( - nonHarmonyReasons - .filter(r => r.module === m) - .map(r => r.dependency.type) - .sort() - ) - ]) - ) - ); - setBailoutReason(module, requestShortener => { - const names = Array.from(importingModules) - .map( - m => - `${m.readableIdentifier( - requestShortener - )} (referenced with ${Array.from( - importingModuleTypes.get(m) - ).join(", ")})` - ) - .sort(); - const explanations = Array.from(importingExplanations).sort(); - if (names.length > 0 && explanations.length === 0) { - return `Module is referenced from these modules with unsupported syntax: ${names.join( - ", " - )}`; - } else if (names.length === 0 && explanations.length > 0) { - return `Module is referenced by: ${explanations.join( - ", " - )}`; - } else if (names.length > 0 && explanations.length > 0) { - return `Module is referenced from these modules with unsupported syntax: ${names.join( - ", " - )} and by: ${explanations.join(", ")}`; - } else { - return "Module is referenced in a unsupported way"; - } - }); - continue; - } - - possibleInners.add(module); - } - // sort by depth - // modules with lower depth are more likely suited as roots - // this improves performance, because modules already selected as inner are skipped - relevantModules.sort((a, b) => { - return a.depth - b.depth; - }); - const concatConfigurations = []; - const usedAsInner = new Set(); - for (const currentRoot of relevantModules) { - // when used by another configuration as inner: - // the other configuration is better and we can skip this one - if (usedAsInner.has(currentRoot)) continue; - - // create a configuration with the root - const currentConfiguration = new ConcatConfiguration(currentRoot); - - // cache failures to add modules - const failureCache = new Map(); - - // try to add all imports - for (const imp of this._getImports(compilation, currentRoot)) { - const problem = this._tryToAdd( - compilation, - currentConfiguration, - imp, - possibleInners, - failureCache - ); - if (problem) { - failureCache.set(imp, problem); - currentConfiguration.addWarning(imp, problem); - } - } - if (!currentConfiguration.isEmpty()) { - concatConfigurations.push(currentConfiguration); - for (const module of currentConfiguration.getModules()) { - if (module !== currentConfiguration.rootModule) { - usedAsInner.add(module); - } - } - } - } - // HACK: Sort configurations by length and start with the longest one - // to get the biggers groups possible. Used modules are marked with usedModules - // TODO: Allow to reuse existing configuration while trying to add dependencies. - // This would improve performance. O(n^2) -> O(n) - concatConfigurations.sort((a, b) => { - return b.modules.size - a.modules.size; - }); - const usedModules = new Set(); - for (const concatConfiguration of concatConfigurations) { - if (usedModules.has(concatConfiguration.rootModule)) continue; - const modules = concatConfiguration.getModules(); - const rootModule = concatConfiguration.rootModule; - const newModule = new ConcatenatedModule( - rootModule, - Array.from(modules), - ConcatenatedModule.createConcatenationList( - rootModule, - modules, - compilation - ) - ); - for (const warning of concatConfiguration.getWarningsSorted()) { - newModule.optimizationBailout.push(requestShortener => { - const reason = getBailoutReason(warning[0], requestShortener); - const reasonWithPrefix = reason ? ` (<- ${reason})` : ""; - if (warning[0] === warning[1]) { - return formatBailoutReason( - `Cannot concat with ${warning[0].readableIdentifier( - requestShortener - )}${reasonWithPrefix}` - ); - } else { - return formatBailoutReason( - `Cannot concat with ${warning[0].readableIdentifier( - requestShortener - )} because of ${warning[1].readableIdentifier( - requestShortener - )}${reasonWithPrefix}` - ); - } - }); - } - const chunks = concatConfiguration.rootModule.getChunks(); - for (const m of modules) { - usedModules.add(m); - for (const chunk of chunks) { - chunk.removeModule(m); - } - } - for (const chunk of chunks) { - chunk.addModule(newModule); - newModule.addChunk(chunk); - } - for (const chunk of allChunks) { - if (chunk.entryModule === concatConfiguration.rootModule) { - chunk.entryModule = newModule; - } - } - compilation.modules.push(newModule); - for (const reason of newModule.reasons) { - if (reason.dependency.module === concatConfiguration.rootModule) - reason.dependency.module = newModule; - if ( - reason.dependency.redirectedModule === - concatConfiguration.rootModule - ) - reason.dependency.redirectedModule = newModule; - } - // TODO: remove when LTS node version contains fixed v8 version - // @see https://github.com/webpack/webpack/pull/6613 - // Turbofan does not correctly inline for-of loops with polymorphic input arrays. - // Work around issue by using a standard for loop and assigning dep.module.reasons - for (let i = 0; i < newModule.dependencies.length; i++) { - let dep = newModule.dependencies[i]; - if (dep.module) { - let reasons = dep.module.reasons; - for (let j = 0; j < reasons.length; j++) { - let reason = reasons[j]; - if (reason.dependency === dep) { - reason.module = newModule; - } - } - } - } - } - compilation.modules = compilation.modules.filter( - m => !usedModules.has(m) - ); - } - ); - } - ); - } - - _getImports(compilation, module) { - return new Set( - module.dependencies - - // Get reference info only for harmony Dependencies - .map(dep => { - if (!(dep instanceof HarmonyImportDependency)) return null; - if (!compilation) return dep.getReference(); - return compilation.getDependencyReference(module, dep); - }) - - // Reference is valid and has a module - // Dependencies are simple enough to concat them - .filter( - ref => - ref && - ref.module && - (Array.isArray(ref.importedNames) || - Array.isArray(ref.module.buildMeta.providedExports)) - ) - - // Take the imported module - .map(ref => ref.module) - ); - } - - _tryToAdd(compilation, config, module, possibleModules, failureCache) { - const cacheEntry = failureCache.get(module); - if (cacheEntry) { - return cacheEntry; - } - - // Already added? - if (config.has(module)) { - return null; - } - - // Not possible to add? - if (!possibleModules.has(module)) { - failureCache.set(module, module); // cache failures for performance - return module; - } - - // module must be in the same chunks - if (!config.rootModule.hasEqualsChunks(module)) { - failureCache.set(module, module); // cache failures for performance - return module; - } - - // Clone config to make experimental changes - const testConfig = config.clone(); - - // Add the module - testConfig.add(module); - - // Every module which depends on the added module must be in the configuration too. - for (const reason of module.reasons) { - // Modules that are not used can be ignored - if ( - reason.module.factoryMeta.sideEffectFree && - reason.module.used === false - ) - continue; - - const problem = this._tryToAdd( - compilation, - testConfig, - reason.module, - possibleModules, - failureCache - ); - if (problem) { - failureCache.set(module, problem); // cache failures for performance - return problem; - } - } - - // Commit experimental changes - config.set(testConfig); - - // Eagerly try to add imports too if possible - for (const imp of this._getImports(compilation, module)) { - const problem = this._tryToAdd( - compilation, - config, - imp, - possibleModules, - failureCache - ); - if (problem) { - config.addWarning(imp, problem); - } - } - return null; - } -} - -class ConcatConfiguration { - constructor(rootModule, cloneFrom) { - this.rootModule = rootModule; - if (cloneFrom) { - this.modules = cloneFrom.modules.createChild(5); - this.warnings = cloneFrom.warnings.createChild(5); - } else { - this.modules = new StackedSetMap(); - this.modules.add(rootModule); - this.warnings = new StackedSetMap(); - } - } - - add(module) { - this.modules.add(module); - } - - has(module) { - return this.modules.has(module); - } - - isEmpty() { - return this.modules.size === 1; - } - - addWarning(module, problem) { - this.warnings.set(module, problem); - } - - getWarningsSorted() { - return new Map( - this.warnings.asPairArray().sort((a, b) => { - const ai = a[0].identifier(); - const bi = b[0].identifier(); - if (ai < bi) return -1; - if (ai > bi) return 1; - return 0; - }) - ); - } - - getModules() { - return this.modules.asSet(); - } - - clone() { - return new ConcatConfiguration(this.rootModule, this); - } - - set(config) { - this.rootModule = config.rootModule; - this.modules = config.modules; - this.warnings = config.warnings; - } -} - -module.exports = ModuleConcatenationPlugin; -- cgit v1.2.3