1906 lines
55 KiB
JavaScript
1906 lines
55 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const eslintScope = require("eslint-scope");
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const Referencer = require("eslint-scope/lib/referencer");
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const {
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CachedSource,
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ConcatSource,
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ReplaceSource
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} = require("webpack-sources");
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const ConcatenationScope = require("../ConcatenationScope");
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const { UsageState } = require("../ExportsInfo");
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const Module = require("../Module");
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const { JAVASCRIPT_MODULE_TYPE_ESM } = require("../ModuleTypeConstants");
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const RuntimeGlobals = require("../RuntimeGlobals");
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const Template = require("../Template");
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const HarmonyImportDependency = require("../dependencies/HarmonyImportDependency");
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const JavascriptParser = require("../javascript/JavascriptParser");
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const { equals } = require("../util/ArrayHelpers");
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const LazySet = require("../util/LazySet");
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const { concatComparators } = require("../util/comparators");
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const createHash = require("../util/createHash");
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const { makePathsRelative } = require("../util/identifier");
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const makeSerializable = require("../util/makeSerializable");
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const propertyAccess = require("../util/propertyAccess");
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const { propertyName } = require("../util/propertyName");
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const {
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filterRuntime,
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intersectRuntime,
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mergeRuntimeCondition,
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mergeRuntimeConditionNonFalse,
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runtimeConditionToString,
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subtractRuntimeCondition
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} = require("../util/runtime");
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/** @typedef {import("eslint-scope").Scope} Scope */
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("../../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
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/** @typedef {import("../ChunkGraph")} ChunkGraph */
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/** @typedef {import("../CodeGenerationResults")} CodeGenerationResults */
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/** @typedef {import("../Compilation")} Compilation */
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/** @typedef {import("../Dependency")} Dependency */
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/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
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/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
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/** @typedef {import("../DependencyTemplates")} DependencyTemplates */
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/** @typedef {import("../ExportsInfo").ExportInfo} ExportInfo */
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/** @template T @typedef {import("../InitFragment")<T>} InitFragment */
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/** @typedef {import("../Module").CodeGenerationContext} CodeGenerationContext */
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/** @typedef {import("../Module").CodeGenerationResult} CodeGenerationResult */
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/** @typedef {import("../Module").LibIdentOptions} LibIdentOptions */
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/** @typedef {import("../ModuleGraph")} ModuleGraph */
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/** @typedef {import("../ModuleGraphConnection")} ModuleGraphConnection */
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/** @typedef {import("../ModuleGraphConnection").ConnectionState} ConnectionState */
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/** @typedef {import("../RequestShortener")} RequestShortener */
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/** @typedef {import("../ResolverFactory").ResolverWithOptions} ResolverWithOptions */
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/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
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/** @typedef {import("../WebpackError")} WebpackError */
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/** @typedef {import("../javascript/JavascriptModulesPlugin").ChunkRenderContext} ChunkRenderContext */
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/** @typedef {import("../util/Hash")} Hash */
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/** @typedef {typeof import("../util/Hash")} HashConstructor */
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/** @typedef {import("../util/fs").InputFileSystem} InputFileSystem */
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/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
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// fix eslint-scope to support class properties correctly
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// cspell:word Referencer
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const ReferencerClass = Referencer;
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if (!ReferencerClass.prototype.PropertyDefinition) {
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ReferencerClass.prototype.PropertyDefinition =
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ReferencerClass.prototype.Property;
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}
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/**
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* @typedef {Object} ReexportInfo
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* @property {Module} module
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* @property {string[]} export
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*/
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/** @typedef {RawBinding | SymbolBinding} Binding */
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/**
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* @typedef {Object} RawBinding
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* @property {ModuleInfo} info
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* @property {string} rawName
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* @property {string=} comment
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* @property {string[]} ids
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* @property {string[]} exportName
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*/
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/**
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* @typedef {Object} SymbolBinding
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* @property {ConcatenatedModuleInfo} info
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* @property {string} name
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* @property {string=} comment
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* @property {string[]} ids
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* @property {string[]} exportName
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*/
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/** @typedef {ConcatenatedModuleInfo | ExternalModuleInfo } ModuleInfo */
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/** @typedef {ConcatenatedModuleInfo | ExternalModuleInfo | ReferenceToModuleInfo } ModuleInfoOrReference */
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/**
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* @typedef {Object} ConcatenatedModuleInfo
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* @property {"concatenated"} type
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* @property {Module} module
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* @property {number} index
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* @property {Object} ast
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* @property {Source} internalSource
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* @property {ReplaceSource} source
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* @property {InitFragment<ChunkRenderContext>[]=} chunkInitFragments
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* @property {Iterable<string>} runtimeRequirements
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* @property {Scope} globalScope
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* @property {Scope} moduleScope
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* @property {Map<string, string>} internalNames
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* @property {Map<string, string>} exportMap
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* @property {Map<string, string>} rawExportMap
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* @property {string=} namespaceExportSymbol
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* @property {string} namespaceObjectName
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* @property {boolean} interopNamespaceObjectUsed
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* @property {string} interopNamespaceObjectName
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* @property {boolean} interopNamespaceObject2Used
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* @property {string} interopNamespaceObject2Name
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* @property {boolean} interopDefaultAccessUsed
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* @property {string} interopDefaultAccessName
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*/
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/**
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* @typedef {Object} ExternalModuleInfo
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* @property {"external"} type
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* @property {Module} module
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* @property {RuntimeSpec | boolean} runtimeCondition
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* @property {number} index
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* @property {string} name
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* @property {boolean} interopNamespaceObjectUsed
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* @property {string} interopNamespaceObjectName
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* @property {boolean} interopNamespaceObject2Used
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* @property {string} interopNamespaceObject2Name
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* @property {boolean} interopDefaultAccessUsed
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* @property {string} interopDefaultAccessName
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*/
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/**
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* @typedef {Object} ReferenceToModuleInfo
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* @property {"reference"} type
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* @property {RuntimeSpec | boolean} runtimeCondition
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* @property {ConcatenatedModuleInfo | ExternalModuleInfo} target
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*/
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const RESERVED_NAMES = new Set(
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[
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// internal names (should always be renamed)
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ConcatenationScope.DEFAULT_EXPORT,
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ConcatenationScope.NAMESPACE_OBJECT_EXPORT,
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// keywords
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"abstract,arguments,async,await,boolean,break,byte,case,catch,char,class,const,continue",
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"debugger,default,delete,do,double,else,enum,eval,export,extends,false,final,finally,float",
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"for,function,goto,if,implements,import,in,instanceof,int,interface,let,long,native,new,null",
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"package,private,protected,public,return,short,static,super,switch,synchronized,this,throw",
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"throws,transient,true,try,typeof,var,void,volatile,while,with,yield",
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// commonjs/amd
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"module,__dirname,__filename,exports,require,define",
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// js globals
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"Array,Date,eval,function,hasOwnProperty,Infinity,isFinite,isNaN,isPrototypeOf,length,Math",
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"NaN,name,Number,Object,prototype,String,toString,undefined,valueOf",
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// browser globals
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"alert,all,anchor,anchors,area,assign,blur,button,checkbox,clearInterval,clearTimeout",
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"clientInformation,close,closed,confirm,constructor,crypto,decodeURI,decodeURIComponent",
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"defaultStatus,document,element,elements,embed,embeds,encodeURI,encodeURIComponent,escape",
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"event,fileUpload,focus,form,forms,frame,innerHeight,innerWidth,layer,layers,link,location",
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"mimeTypes,navigate,navigator,frames,frameRate,hidden,history,image,images,offscreenBuffering",
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"open,opener,option,outerHeight,outerWidth,packages,pageXOffset,pageYOffset,parent,parseFloat",
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"parseInt,password,pkcs11,plugin,prompt,propertyIsEnum,radio,reset,screenX,screenY,scroll",
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"secure,select,self,setInterval,setTimeout,status,submit,taint,text,textarea,top,unescape",
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"untaint,window",
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// window events
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"onblur,onclick,onerror,onfocus,onkeydown,onkeypress,onkeyup,onmouseover,onload,onmouseup,onmousedown,onsubmit"
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]
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.join(",")
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.split(",")
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);
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const createComparator = (property, comparator) => (a, b) =>
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comparator(a[property], b[property]);
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const compareNumbers = (a, b) => {
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if (isNaN(a)) {
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if (!isNaN(b)) {
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return 1;
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}
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} else {
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if (isNaN(b)) {
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return -1;
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}
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if (a !== b) {
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return a < b ? -1 : 1;
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}
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}
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return 0;
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};
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const bySourceOrder = createComparator("sourceOrder", compareNumbers);
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const byRangeStart = createComparator("rangeStart", compareNumbers);
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const joinIterableWithComma = iterable => {
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// This is more performant than Array.from().join(", ")
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// as it doesn't create an array
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let str = "";
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let first = true;
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for (const item of iterable) {
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if (first) {
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first = false;
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} else {
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str += ", ";
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}
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str += item;
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}
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return str;
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};
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/**
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* @typedef {Object} ConcatenationEntry
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* @property {"concatenated" | "external"} type
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* @property {Module} module
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* @property {RuntimeSpec | boolean} runtimeCondition
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*/
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/**
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* @param {ModuleGraph} moduleGraph the module graph
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* @param {ModuleInfo} info module info
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* @param {string[]} exportName exportName
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* @param {Map<Module, ModuleInfo>} moduleToInfoMap moduleToInfoMap
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* @param {RuntimeSpec} runtime for which runtime
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* @param {RequestShortener} requestShortener the request shortener
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* @param {RuntimeTemplate} runtimeTemplate the runtime template
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* @param {Set<ConcatenatedModuleInfo>} neededNamespaceObjects modules for which a namespace object should be generated
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* @param {boolean} asCall asCall
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* @param {boolean} strictHarmonyModule strictHarmonyModule
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* @param {boolean | undefined} asiSafe asiSafe
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* @param {Set<ExportInfo>} alreadyVisited alreadyVisited
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* @returns {Binding} the final variable
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*/
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const getFinalBinding = (
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moduleGraph,
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info,
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exportName,
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moduleToInfoMap,
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runtime,
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requestShortener,
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runtimeTemplate,
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neededNamespaceObjects,
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asCall,
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strictHarmonyModule,
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asiSafe,
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alreadyVisited = new Set()
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) => {
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const exportsType = info.module.getExportsType(
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moduleGraph,
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strictHarmonyModule
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);
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if (exportName.length === 0) {
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switch (exportsType) {
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case "default-only":
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info.interopNamespaceObject2Used = true;
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return {
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info,
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rawName: info.interopNamespaceObject2Name,
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ids: exportName,
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exportName
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};
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case "default-with-named":
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info.interopNamespaceObjectUsed = true;
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return {
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info,
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rawName: info.interopNamespaceObjectName,
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ids: exportName,
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exportName
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};
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case "namespace":
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case "dynamic":
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break;
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default:
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throw new Error(`Unexpected exportsType ${exportsType}`);
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}
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} else {
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switch (exportsType) {
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case "namespace":
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break;
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case "default-with-named":
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switch (exportName[0]) {
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case "default":
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exportName = exportName.slice(1);
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break;
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case "__esModule":
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return {
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info,
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rawName: "/* __esModule */true",
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ids: exportName.slice(1),
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exportName
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};
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}
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break;
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case "default-only": {
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const exportId = exportName[0];
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if (exportId === "__esModule") {
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return {
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info,
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rawName: "/* __esModule */true",
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ids: exportName.slice(1),
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exportName
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};
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}
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exportName = exportName.slice(1);
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if (exportId !== "default") {
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return {
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info,
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rawName:
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"/* non-default import from default-exporting module */undefined",
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ids: exportName,
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exportName
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};
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}
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break;
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}
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case "dynamic":
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switch (exportName[0]) {
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case "default": {
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exportName = exportName.slice(1);
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info.interopDefaultAccessUsed = true;
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const defaultExport = asCall
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? `${info.interopDefaultAccessName}()`
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: asiSafe
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? `(${info.interopDefaultAccessName}())`
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: asiSafe === false
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? `;(${info.interopDefaultAccessName}())`
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: `${info.interopDefaultAccessName}.a`;
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return {
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info,
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rawName: defaultExport,
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ids: exportName,
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exportName
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};
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}
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case "__esModule":
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return {
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info,
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rawName: "/* __esModule */true",
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ids: exportName.slice(1),
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exportName
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};
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}
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break;
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default:
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throw new Error(`Unexpected exportsType ${exportsType}`);
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}
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}
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if (exportName.length === 0) {
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switch (info.type) {
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case "concatenated":
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neededNamespaceObjects.add(info);
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return {
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info,
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rawName: info.namespaceObjectName,
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ids: exportName,
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exportName
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};
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case "external":
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return { info, rawName: info.name, ids: exportName, exportName };
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}
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}
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const exportsInfo = moduleGraph.getExportsInfo(info.module);
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const exportInfo = exportsInfo.getExportInfo(exportName[0]);
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if (alreadyVisited.has(exportInfo)) {
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return {
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info,
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rawName: "/* circular reexport */ Object(function x() { x() }())",
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ids: [],
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exportName
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};
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}
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alreadyVisited.add(exportInfo);
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switch (info.type) {
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case "concatenated": {
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const exportId = exportName[0];
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if (exportInfo.provided === false) {
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// It's not provided, but it could be on the prototype
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neededNamespaceObjects.add(info);
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return {
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info,
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rawName: info.namespaceObjectName,
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ids: exportName,
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exportName
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};
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}
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const directExport = info.exportMap && info.exportMap.get(exportId);
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if (directExport) {
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const usedName = /** @type {string[]} */ (
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exportsInfo.getUsedName(exportName, runtime)
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);
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if (!usedName) {
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return {
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info,
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rawName: "/* unused export */ undefined",
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ids: exportName.slice(1),
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exportName
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};
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}
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return {
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info,
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name: directExport,
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ids: usedName.slice(1),
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exportName
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};
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}
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const rawExport = info.rawExportMap && info.rawExportMap.get(exportId);
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if (rawExport) {
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return {
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info,
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rawName: rawExport,
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ids: exportName.slice(1),
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exportName
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};
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}
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const reexport = exportInfo.findTarget(moduleGraph, module =>
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moduleToInfoMap.has(module)
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);
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if (reexport === false) {
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throw new Error(
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`Target module of reexport from '${info.module.readableIdentifier(
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requestShortener
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)}' is not part of the concatenation (export '${exportId}')\nModules in the concatenation:\n${Array.from(
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|
moduleToInfoMap,
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|
([m, info]) =>
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` * ${info.type} ${m.readableIdentifier(requestShortener)}`
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|
).join("\n")}`
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);
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}
|
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if (reexport) {
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const refInfo = moduleToInfoMap.get(reexport.module);
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return getFinalBinding(
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moduleGraph,
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refInfo,
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|
reexport.export
|
|
? [...reexport.export, ...exportName.slice(1)]
|
|
: exportName.slice(1),
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|
moduleToInfoMap,
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|
runtime,
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|
requestShortener,
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|
runtimeTemplate,
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|
neededNamespaceObjects,
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|
asCall,
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|
info.module.buildMeta.strictHarmonyModule,
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|
asiSafe,
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|
alreadyVisited
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|
);
|
|
}
|
|
if (info.namespaceExportSymbol) {
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|
const usedName = /** @type {string[]} */ (
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exportsInfo.getUsedName(exportName, runtime)
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);
|
|
return {
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|
info,
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|
rawName: info.namespaceObjectName,
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|
ids: usedName,
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exportName
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|
};
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|
}
|
|
throw new Error(
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|
`Cannot get final name for export '${exportName.join(
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"."
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)}' of ${info.module.readableIdentifier(requestShortener)}`
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);
|
|
}
|
|
|
|
case "external": {
|
|
const used = /** @type {string[]} */ (
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exportsInfo.getUsedName(exportName, runtime)
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);
|
|
if (!used) {
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|
return {
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|
info,
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rawName: "/* unused export */ undefined",
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ids: exportName.slice(1),
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exportName
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};
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|
}
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|
const comment = equals(used, exportName)
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? ""
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|
: Template.toNormalComment(`${exportName.join(".")}`);
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|
return { info, rawName: info.name + comment, ids: used, exportName };
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|
}
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|
}
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|
};
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {ModuleInfo} info module info
|
|
* @param {string[]} exportName exportName
|
|
* @param {Map<Module, ModuleInfo>} moduleToInfoMap moduleToInfoMap
|
|
* @param {RuntimeSpec} runtime for which runtime
|
|
* @param {RequestShortener} requestShortener the request shortener
|
|
* @param {RuntimeTemplate} runtimeTemplate the runtime template
|
|
* @param {Set<ConcatenatedModuleInfo>} neededNamespaceObjects modules for which a namespace object should be generated
|
|
* @param {boolean} asCall asCall
|
|
* @param {boolean} callContext callContext
|
|
* @param {boolean} strictHarmonyModule strictHarmonyModule
|
|
* @param {boolean | undefined} asiSafe asiSafe
|
|
* @returns {string} the final name
|
|
*/
|
|
const getFinalName = (
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|
moduleGraph,
|
|
info,
|
|
exportName,
|
|
moduleToInfoMap,
|
|
runtime,
|
|
requestShortener,
|
|
runtimeTemplate,
|
|
neededNamespaceObjects,
|
|
asCall,
|
|
callContext,
|
|
strictHarmonyModule,
|
|
asiSafe
|
|
) => {
|
|
const binding = getFinalBinding(
|
|
moduleGraph,
|
|
info,
|
|
exportName,
|
|
moduleToInfoMap,
|
|
runtime,
|
|
requestShortener,
|
|
runtimeTemplate,
|
|
neededNamespaceObjects,
|
|
asCall,
|
|
strictHarmonyModule,
|
|
asiSafe
|
|
);
|
|
{
|
|
const { ids, comment } = binding;
|
|
let reference;
|
|
let isPropertyAccess;
|
|
if ("rawName" in binding) {
|
|
reference = `${binding.rawName}${comment || ""}${propertyAccess(ids)}`;
|
|
isPropertyAccess = ids.length > 0;
|
|
} else {
|
|
const { info, name: exportId } = binding;
|
|
const name = info.internalNames.get(exportId);
|
|
if (!name) {
|
|
throw new Error(
|
|
`The export "${exportId}" in "${info.module.readableIdentifier(
|
|
requestShortener
|
|
)}" has no internal name (existing names: ${
|
|
Array.from(
|
|
info.internalNames,
|
|
([name, symbol]) => `${name}: ${symbol}`
|
|
).join(", ") || "none"
|
|
})`
|
|
);
|
|
}
|
|
reference = `${name}${comment || ""}${propertyAccess(ids)}`;
|
|
isPropertyAccess = ids.length > 1;
|
|
}
|
|
if (isPropertyAccess && asCall && callContext === false) {
|
|
return asiSafe
|
|
? `(0,${reference})`
|
|
: asiSafe === false
|
|
? `;(0,${reference})`
|
|
: `/*#__PURE__*/Object(${reference})`;
|
|
}
|
|
return reference;
|
|
}
|
|
};
|
|
|
|
const addScopeSymbols = (s, nameSet, scopeSet1, scopeSet2) => {
|
|
let scope = s;
|
|
while (scope) {
|
|
if (scopeSet1.has(scope)) break;
|
|
if (scopeSet2.has(scope)) break;
|
|
scopeSet1.add(scope);
|
|
for (const variable of scope.variables) {
|
|
nameSet.add(variable.name);
|
|
}
|
|
scope = scope.upper;
|
|
}
|
|
};
|
|
|
|
const getAllReferences = variable => {
|
|
let set = variable.references;
|
|
// Look for inner scope variables too (like in class Foo { t() { Foo } })
|
|
const identifiers = new Set(variable.identifiers);
|
|
for (const scope of variable.scope.childScopes) {
|
|
for (const innerVar of scope.variables) {
|
|
if (innerVar.identifiers.some(id => identifiers.has(id))) {
|
|
set = set.concat(innerVar.references);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return set;
|
|
};
|
|
|
|
const getPathInAst = (ast, node) => {
|
|
if (ast === node) {
|
|
return [];
|
|
}
|
|
|
|
const nr = node.range;
|
|
|
|
const enterNode = n => {
|
|
if (!n) return undefined;
|
|
const r = n.range;
|
|
if (r) {
|
|
if (r[0] <= nr[0] && r[1] >= nr[1]) {
|
|
const path = getPathInAst(n, node);
|
|
if (path) {
|
|
path.push(n);
|
|
return path;
|
|
}
|
|
}
|
|
}
|
|
return undefined;
|
|
};
|
|
|
|
if (Array.isArray(ast)) {
|
|
for (let i = 0; i < ast.length; i++) {
|
|
const enterResult = enterNode(ast[i]);
|
|
if (enterResult !== undefined) return enterResult;
|
|
}
|
|
} else if (ast && typeof ast === "object") {
|
|
const keys = Object.keys(ast);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
const value = ast[keys[i]];
|
|
if (Array.isArray(value)) {
|
|
const pathResult = getPathInAst(value, node);
|
|
if (pathResult !== undefined) return pathResult;
|
|
} else if (value && typeof value === "object") {
|
|
const enterResult = enterNode(value);
|
|
if (enterResult !== undefined) return enterResult;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
const TYPES = new Set(["javascript"]);
|
|
|
|
class ConcatenatedModule extends Module {
|
|
/**
|
|
* @param {Module} rootModule the root module of the concatenation
|
|
* @param {Set<Module>} modules all modules in the concatenation (including the root module)
|
|
* @param {RuntimeSpec} runtime the runtime
|
|
* @param {Object=} associatedObjectForCache object for caching
|
|
* @param {string | HashConstructor=} hashFunction hash function to use
|
|
* @returns {ConcatenatedModule} the module
|
|
*/
|
|
static create(
|
|
rootModule,
|
|
modules,
|
|
runtime,
|
|
associatedObjectForCache,
|
|
hashFunction = "md4"
|
|
) {
|
|
const identifier = ConcatenatedModule._createIdentifier(
|
|
rootModule,
|
|
modules,
|
|
associatedObjectForCache,
|
|
hashFunction
|
|
);
|
|
return new ConcatenatedModule({
|
|
identifier,
|
|
rootModule,
|
|
modules,
|
|
runtime
|
|
});
|
|
}
|
|
|
|
/**
|
|
* @param {Object} options options
|
|
* @param {string} options.identifier the identifier of the module
|
|
* @param {Module=} options.rootModule the root module of the concatenation
|
|
* @param {RuntimeSpec} options.runtime the selected runtime
|
|
* @param {Set<Module>=} options.modules all concatenated modules
|
|
*/
|
|
constructor({ identifier, rootModule, modules, runtime }) {
|
|
super(JAVASCRIPT_MODULE_TYPE_ESM, null, rootModule && rootModule.layer);
|
|
|
|
// Info from Factory
|
|
/** @type {string} */
|
|
this._identifier = identifier;
|
|
/** @type {Module} */
|
|
this.rootModule = rootModule;
|
|
/** @type {Set<Module>} */
|
|
this._modules = modules;
|
|
this._runtime = runtime;
|
|
this.factoryMeta = rootModule && rootModule.factoryMeta;
|
|
}
|
|
|
|
/**
|
|
* Assuming this module is in the cache. Update the (cached) module with
|
|
* the fresh module from the factory. Usually updates internal references
|
|
* and properties.
|
|
* @param {Module} module fresh module
|
|
* @returns {void}
|
|
*/
|
|
updateCacheModule(module) {
|
|
throw new Error("Must not be called");
|
|
}
|
|
|
|
/**
|
|
* @returns {Set<string>} types available (do not mutate)
|
|
*/
|
|
getSourceTypes() {
|
|
return TYPES;
|
|
}
|
|
|
|
get modules() {
|
|
return Array.from(this._modules);
|
|
}
|
|
|
|
/**
|
|
* @returns {string} a unique identifier of the module
|
|
*/
|
|
identifier() {
|
|
return this._identifier;
|
|
}
|
|
|
|
/**
|
|
* @param {RequestShortener} requestShortener the request shortener
|
|
* @returns {string} a user readable identifier of the module
|
|
*/
|
|
readableIdentifier(requestShortener) {
|
|
return (
|
|
this.rootModule.readableIdentifier(requestShortener) +
|
|
` + ${this._modules.size - 1} modules`
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {LibIdentOptions} options options
|
|
* @returns {string | null} an identifier for library inclusion
|
|
*/
|
|
libIdent(options) {
|
|
return this.rootModule.libIdent(options);
|
|
}
|
|
|
|
/**
|
|
* @returns {string | null} absolute path which should be used for condition matching (usually the resource path)
|
|
*/
|
|
nameForCondition() {
|
|
return this.rootModule.nameForCondition();
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @returns {ConnectionState} how this module should be connected to referencing modules when consumed for side-effects only
|
|
*/
|
|
getSideEffectsConnectionState(moduleGraph) {
|
|
return this.rootModule.getSideEffectsConnectionState(moduleGraph);
|
|
}
|
|
|
|
/**
|
|
* @param {WebpackOptions} options webpack options
|
|
* @param {Compilation} compilation the compilation
|
|
* @param {ResolverWithOptions} resolver the resolver
|
|
* @param {InputFileSystem} fs the file system
|
|
* @param {function(WebpackError=): void} callback callback function
|
|
* @returns {void}
|
|
*/
|
|
build(options, compilation, resolver, fs, callback) {
|
|
const { rootModule } = this;
|
|
this.buildInfo = {
|
|
strict: true,
|
|
cacheable: true,
|
|
moduleArgument: rootModule.buildInfo.moduleArgument,
|
|
exportsArgument: rootModule.buildInfo.exportsArgument,
|
|
fileDependencies: new LazySet(),
|
|
contextDependencies: new LazySet(),
|
|
missingDependencies: new LazySet(),
|
|
topLevelDeclarations: new Set(),
|
|
assets: undefined
|
|
};
|
|
this.buildMeta = rootModule.buildMeta;
|
|
this.clearDependenciesAndBlocks();
|
|
this.clearWarningsAndErrors();
|
|
|
|
for (const m of this._modules) {
|
|
// populate cacheable
|
|
if (!m.buildInfo.cacheable) {
|
|
this.buildInfo.cacheable = false;
|
|
}
|
|
|
|
// populate dependencies
|
|
for (const d of m.dependencies.filter(
|
|
dep =>
|
|
!(dep instanceof HarmonyImportDependency) ||
|
|
!this._modules.has(compilation.moduleGraph.getModule(dep))
|
|
)) {
|
|
this.dependencies.push(d);
|
|
}
|
|
// populate blocks
|
|
for (const d of m.blocks) {
|
|
this.blocks.push(d);
|
|
}
|
|
|
|
// populate warnings
|
|
const warnings = m.getWarnings();
|
|
if (warnings !== undefined) {
|
|
for (const warning of warnings) {
|
|
this.addWarning(warning);
|
|
}
|
|
}
|
|
|
|
// populate errors
|
|
const errors = m.getErrors();
|
|
if (errors !== undefined) {
|
|
for (const error of errors) {
|
|
this.addError(error);
|
|
}
|
|
}
|
|
|
|
// populate topLevelDeclarations
|
|
if (m.buildInfo.topLevelDeclarations) {
|
|
const topLevelDeclarations = this.buildInfo.topLevelDeclarations;
|
|
if (topLevelDeclarations !== undefined) {
|
|
for (const decl of m.buildInfo.topLevelDeclarations) {
|
|
topLevelDeclarations.add(decl);
|
|
}
|
|
}
|
|
} else {
|
|
this.buildInfo.topLevelDeclarations = undefined;
|
|
}
|
|
|
|
// populate assets
|
|
if (m.buildInfo.assets) {
|
|
if (this.buildInfo.assets === undefined) {
|
|
this.buildInfo.assets = Object.create(null);
|
|
}
|
|
Object.assign(this.buildInfo.assets, m.buildInfo.assets);
|
|
}
|
|
if (m.buildInfo.assetsInfo) {
|
|
if (this.buildInfo.assetsInfo === undefined) {
|
|
this.buildInfo.assetsInfo = new Map();
|
|
}
|
|
for (const [key, value] of m.buildInfo.assetsInfo) {
|
|
this.buildInfo.assetsInfo.set(key, value);
|
|
}
|
|
}
|
|
}
|
|
callback();
|
|
}
|
|
|
|
/**
|
|
* @param {string=} type the source type for which the size should be estimated
|
|
* @returns {number} the estimated size of the module (must be non-zero)
|
|
*/
|
|
size(type) {
|
|
// Guess size from embedded modules
|
|
let size = 0;
|
|
for (const module of this._modules) {
|
|
size += module.size(type);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* @private
|
|
* @param {Module} rootModule the root of the concatenation
|
|
* @param {Set<Module>} modulesSet a set of modules which should be concatenated
|
|
* @param {RuntimeSpec} runtime for this runtime
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @returns {ConcatenationEntry[]} concatenation list
|
|
*/
|
|
_createConcatenationList(rootModule, modulesSet, runtime, moduleGraph) {
|
|
/** @type {ConcatenationEntry[]} */
|
|
const list = [];
|
|
/** @type {Map<Module, RuntimeSpec | true>} */
|
|
const existingEntries = new Map();
|
|
|
|
/**
|
|
* @param {Module} module a module
|
|
* @returns {Iterable<{ connection: ModuleGraphConnection, runtimeCondition: RuntimeSpec | true }>} imported modules in order
|
|
*/
|
|
const getConcatenatedImports = module => {
|
|
let connections = Array.from(moduleGraph.getOutgoingConnections(module));
|
|
if (module === rootModule) {
|
|
for (const c of moduleGraph.getOutgoingConnections(this))
|
|
connections.push(c);
|
|
}
|
|
/**
|
|
* @type {Array<{ connection: ModuleGraphConnection, sourceOrder: number, rangeStart: number }>}
|
|
*/
|
|
const references = connections
|
|
.filter(connection => {
|
|
if (!(connection.dependency instanceof HarmonyImportDependency))
|
|
return false;
|
|
return (
|
|
connection &&
|
|
connection.resolvedOriginModule === module &&
|
|
connection.module &&
|
|
connection.isTargetActive(runtime)
|
|
);
|
|
})
|
|
.map(connection => {
|
|
const dep = /** @type {HarmonyImportDependency} */ (
|
|
connection.dependency
|
|
);
|
|
return {
|
|
connection,
|
|
sourceOrder: dep.sourceOrder,
|
|
rangeStart: dep.range && dep.range[0]
|
|
};
|
|
});
|
|
/**
|
|
* bySourceOrder
|
|
* @example
|
|
* import a from "a"; // sourceOrder=1
|
|
* import b from "b"; // sourceOrder=2
|
|
*
|
|
* byRangeStart
|
|
* @example
|
|
* import {a, b} from "a"; // sourceOrder=1
|
|
* a.a(); // first range
|
|
* b.b(); // second range
|
|
*
|
|
* If there is no reexport, we have the same source.
|
|
* If there is reexport, but module has side effects, this will lead to reexport module only.
|
|
* If there is side-effects-free reexport, we can get simple deterministic result with range start comparison.
|
|
*/
|
|
references.sort(concatComparators(bySourceOrder, byRangeStart));
|
|
/** @type {Map<Module, { connection: ModuleGraphConnection, runtimeCondition: RuntimeSpec | true }>} */
|
|
const referencesMap = new Map();
|
|
for (const { connection } of references) {
|
|
const runtimeCondition = filterRuntime(runtime, r =>
|
|
connection.isTargetActive(r)
|
|
);
|
|
if (runtimeCondition === false) continue;
|
|
const module = connection.module;
|
|
const entry = referencesMap.get(module);
|
|
if (entry === undefined) {
|
|
referencesMap.set(module, { connection, runtimeCondition });
|
|
continue;
|
|
}
|
|
entry.runtimeCondition = mergeRuntimeConditionNonFalse(
|
|
entry.runtimeCondition,
|
|
runtimeCondition,
|
|
runtime
|
|
);
|
|
}
|
|
return referencesMap.values();
|
|
};
|
|
|
|
/**
|
|
* @param {ModuleGraphConnection} connection graph connection
|
|
* @param {RuntimeSpec | true} runtimeCondition runtime condition
|
|
* @returns {void}
|
|
*/
|
|
const enterModule = (connection, runtimeCondition) => {
|
|
const module = connection.module;
|
|
if (!module) return;
|
|
const existingEntry = existingEntries.get(module);
|
|
if (existingEntry === true) {
|
|
return;
|
|
}
|
|
if (modulesSet.has(module)) {
|
|
existingEntries.set(module, true);
|
|
if (runtimeCondition !== true) {
|
|
throw new Error(
|
|
`Cannot runtime-conditional concatenate a module (${module.identifier()} in ${this.rootModule.identifier()}, ${runtimeConditionToString(
|
|
runtimeCondition
|
|
)}). This should not happen.`
|
|
);
|
|
}
|
|
const imports = getConcatenatedImports(module);
|
|
for (const { connection, runtimeCondition } of imports)
|
|
enterModule(connection, runtimeCondition);
|
|
list.push({
|
|
type: "concatenated",
|
|
module: connection.module,
|
|
runtimeCondition
|
|
});
|
|
} else {
|
|
if (existingEntry !== undefined) {
|
|
const reducedRuntimeCondition = subtractRuntimeCondition(
|
|
runtimeCondition,
|
|
existingEntry,
|
|
runtime
|
|
);
|
|
if (reducedRuntimeCondition === false) return;
|
|
runtimeCondition = reducedRuntimeCondition;
|
|
existingEntries.set(
|
|
connection.module,
|
|
mergeRuntimeConditionNonFalse(
|
|
existingEntry,
|
|
runtimeCondition,
|
|
runtime
|
|
)
|
|
);
|
|
} else {
|
|
existingEntries.set(connection.module, runtimeCondition);
|
|
}
|
|
if (list.length > 0) {
|
|
const lastItem = list[list.length - 1];
|
|
if (
|
|
lastItem.type === "external" &&
|
|
lastItem.module === connection.module
|
|
) {
|
|
lastItem.runtimeCondition = mergeRuntimeCondition(
|
|
lastItem.runtimeCondition,
|
|
runtimeCondition,
|
|
runtime
|
|
);
|
|
return;
|
|
}
|
|
}
|
|
list.push({
|
|
type: "external",
|
|
get module() {
|
|
// We need to use a getter here, because the module in the dependency
|
|
// could be replaced by some other process (i. e. also replaced with a
|
|
// concatenated module)
|
|
return connection.module;
|
|
},
|
|
runtimeCondition
|
|
});
|
|
}
|
|
};
|
|
|
|
existingEntries.set(rootModule, true);
|
|
const imports = getConcatenatedImports(rootModule);
|
|
for (const { connection, runtimeCondition } of imports)
|
|
enterModule(connection, runtimeCondition);
|
|
list.push({
|
|
type: "concatenated",
|
|
module: rootModule,
|
|
runtimeCondition: true
|
|
});
|
|
|
|
return list;
|
|
}
|
|
|
|
/**
|
|
* @param {Module} rootModule the root module of the concatenation
|
|
* @param {Set<Module>} modules all modules in the concatenation (including the root module)
|
|
* @param {Object=} associatedObjectForCache object for caching
|
|
* @param {string | HashConstructor=} hashFunction hash function to use
|
|
* @returns {string} the identifier
|
|
*/
|
|
static _createIdentifier(
|
|
rootModule,
|
|
modules,
|
|
associatedObjectForCache,
|
|
hashFunction = "md4"
|
|
) {
|
|
const cachedMakePathsRelative = makePathsRelative.bindContextCache(
|
|
rootModule.context,
|
|
associatedObjectForCache
|
|
);
|
|
let identifiers = [];
|
|
for (const module of modules) {
|
|
identifiers.push(cachedMakePathsRelative(module.identifier()));
|
|
}
|
|
identifiers.sort();
|
|
const hash = createHash(hashFunction);
|
|
hash.update(identifiers.join(" "));
|
|
return rootModule.identifier() + "|" + hash.digest("hex");
|
|
}
|
|
|
|
/**
|
|
* @param {LazySet<string>} fileDependencies set where file dependencies are added to
|
|
* @param {LazySet<string>} contextDependencies set where context dependencies are added to
|
|
* @param {LazySet<string>} missingDependencies set where missing dependencies are added to
|
|
* @param {LazySet<string>} buildDependencies set where build dependencies are added to
|
|
*/
|
|
addCacheDependencies(
|
|
fileDependencies,
|
|
contextDependencies,
|
|
missingDependencies,
|
|
buildDependencies
|
|
) {
|
|
for (const module of this._modules) {
|
|
module.addCacheDependencies(
|
|
fileDependencies,
|
|
contextDependencies,
|
|
missingDependencies,
|
|
buildDependencies
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {CodeGenerationContext} context context for code generation
|
|
* @returns {CodeGenerationResult} result
|
|
*/
|
|
codeGeneration({
|
|
dependencyTemplates,
|
|
runtimeTemplate,
|
|
moduleGraph,
|
|
chunkGraph,
|
|
runtime: generationRuntime,
|
|
codeGenerationResults
|
|
}) {
|
|
/** @type {Set<string>} */
|
|
const runtimeRequirements = new Set();
|
|
const runtime = intersectRuntime(generationRuntime, this._runtime);
|
|
|
|
const requestShortener = runtimeTemplate.requestShortener;
|
|
// Meta info for each module
|
|
const [modulesWithInfo, moduleToInfoMap] = this._getModulesWithInfo(
|
|
moduleGraph,
|
|
runtime
|
|
);
|
|
|
|
// Set with modules that need a generated namespace object
|
|
/** @type {Set<ConcatenatedModuleInfo>} */
|
|
const neededNamespaceObjects = new Set();
|
|
|
|
// Generate source code and analyse scopes
|
|
// Prepare a ReplaceSource for the final source
|
|
for (const info of moduleToInfoMap.values()) {
|
|
this._analyseModule(
|
|
moduleToInfoMap,
|
|
info,
|
|
dependencyTemplates,
|
|
runtimeTemplate,
|
|
moduleGraph,
|
|
chunkGraph,
|
|
runtime,
|
|
codeGenerationResults
|
|
);
|
|
}
|
|
|
|
// List of all used names to avoid conflicts
|
|
const allUsedNames = new Set(RESERVED_NAMES);
|
|
// Updated Top level declarations are created by renaming
|
|
const topLevelDeclarations = new Set();
|
|
|
|
// List of additional names in scope for module references
|
|
/** @type {Map<string, { usedNames: Set<string>, alreadyCheckedScopes: Set<TODO> }>} */
|
|
const usedNamesInScopeInfo = new Map();
|
|
/**
|
|
* @param {string} module module identifier
|
|
* @param {string} id export id
|
|
* @returns {{ usedNames: Set<string>, alreadyCheckedScopes: Set<TODO> }} info
|
|
*/
|
|
const getUsedNamesInScopeInfo = (module, id) => {
|
|
const key = `${module}-${id}`;
|
|
let info = usedNamesInScopeInfo.get(key);
|
|
if (info === undefined) {
|
|
info = {
|
|
usedNames: new Set(),
|
|
alreadyCheckedScopes: new Set()
|
|
};
|
|
usedNamesInScopeInfo.set(key, info);
|
|
}
|
|
return info;
|
|
};
|
|
|
|
// Set of already checked scopes
|
|
const ignoredScopes = new Set();
|
|
|
|
// get all global names
|
|
for (const info of modulesWithInfo) {
|
|
if (info.type === "concatenated") {
|
|
// ignore symbols from moduleScope
|
|
if (info.moduleScope) {
|
|
ignoredScopes.add(info.moduleScope);
|
|
}
|
|
|
|
// The super class expression in class scopes behaves weird
|
|
// We get ranges of all super class expressions to make
|
|
// renaming to work correctly
|
|
const superClassCache = new WeakMap();
|
|
const getSuperClassExpressions = scope => {
|
|
const cacheEntry = superClassCache.get(scope);
|
|
if (cacheEntry !== undefined) return cacheEntry;
|
|
const superClassExpressions = [];
|
|
for (const childScope of scope.childScopes) {
|
|
if (childScope.type !== "class") continue;
|
|
const block = childScope.block;
|
|
if (
|
|
(block.type === "ClassDeclaration" ||
|
|
block.type === "ClassExpression") &&
|
|
block.superClass
|
|
) {
|
|
superClassExpressions.push({
|
|
range: block.superClass.range,
|
|
variables: childScope.variables
|
|
});
|
|
}
|
|
}
|
|
superClassCache.set(scope, superClassExpressions);
|
|
return superClassExpressions;
|
|
};
|
|
|
|
// add global symbols
|
|
if (info.globalScope) {
|
|
for (const reference of info.globalScope.through) {
|
|
const name = reference.identifier.name;
|
|
if (ConcatenationScope.isModuleReference(name)) {
|
|
const match = ConcatenationScope.matchModuleReference(name);
|
|
if (!match) continue;
|
|
const referencedInfo = modulesWithInfo[match.index];
|
|
if (referencedInfo.type === "reference")
|
|
throw new Error("Module reference can't point to a reference");
|
|
const binding = getFinalBinding(
|
|
moduleGraph,
|
|
referencedInfo,
|
|
match.ids,
|
|
moduleToInfoMap,
|
|
runtime,
|
|
requestShortener,
|
|
runtimeTemplate,
|
|
neededNamespaceObjects,
|
|
false,
|
|
info.module.buildMeta.strictHarmonyModule,
|
|
true
|
|
);
|
|
if (!binding.ids) continue;
|
|
const { usedNames, alreadyCheckedScopes } =
|
|
getUsedNamesInScopeInfo(
|
|
binding.info.module.identifier(),
|
|
"name" in binding ? binding.name : ""
|
|
);
|
|
for (const expr of getSuperClassExpressions(reference.from)) {
|
|
if (
|
|
expr.range[0] <= reference.identifier.range[0] &&
|
|
expr.range[1] >= reference.identifier.range[1]
|
|
) {
|
|
for (const variable of expr.variables) {
|
|
usedNames.add(variable.name);
|
|
}
|
|
}
|
|
}
|
|
addScopeSymbols(
|
|
reference.from,
|
|
usedNames,
|
|
alreadyCheckedScopes,
|
|
ignoredScopes
|
|
);
|
|
} else {
|
|
allUsedNames.add(name);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// generate names for symbols
|
|
for (const info of moduleToInfoMap.values()) {
|
|
const { usedNames: namespaceObjectUsedNames } = getUsedNamesInScopeInfo(
|
|
info.module.identifier(),
|
|
""
|
|
);
|
|
switch (info.type) {
|
|
case "concatenated": {
|
|
for (const variable of info.moduleScope.variables) {
|
|
const name = variable.name;
|
|
const { usedNames, alreadyCheckedScopes } = getUsedNamesInScopeInfo(
|
|
info.module.identifier(),
|
|
name
|
|
);
|
|
if (allUsedNames.has(name) || usedNames.has(name)) {
|
|
const references = getAllReferences(variable);
|
|
for (const ref of references) {
|
|
addScopeSymbols(
|
|
ref.from,
|
|
usedNames,
|
|
alreadyCheckedScopes,
|
|
ignoredScopes
|
|
);
|
|
}
|
|
const newName = this.findNewName(
|
|
name,
|
|
allUsedNames,
|
|
usedNames,
|
|
info.module.readableIdentifier(requestShortener)
|
|
);
|
|
allUsedNames.add(newName);
|
|
info.internalNames.set(name, newName);
|
|
topLevelDeclarations.add(newName);
|
|
const source = info.source;
|
|
const allIdentifiers = new Set(
|
|
references.map(r => r.identifier).concat(variable.identifiers)
|
|
);
|
|
for (const identifier of allIdentifiers) {
|
|
const r = identifier.range;
|
|
const path = getPathInAst(info.ast, identifier);
|
|
if (path && path.length > 1) {
|
|
const maybeProperty =
|
|
path[1].type === "AssignmentPattern" &&
|
|
path[1].left === path[0]
|
|
? path[2]
|
|
: path[1];
|
|
if (
|
|
maybeProperty.type === "Property" &&
|
|
maybeProperty.shorthand
|
|
) {
|
|
source.insert(r[1], `: ${newName}`);
|
|
continue;
|
|
}
|
|
}
|
|
source.replace(r[0], r[1] - 1, newName);
|
|
}
|
|
} else {
|
|
allUsedNames.add(name);
|
|
info.internalNames.set(name, name);
|
|
topLevelDeclarations.add(name);
|
|
}
|
|
}
|
|
let namespaceObjectName;
|
|
if (info.namespaceExportSymbol) {
|
|
namespaceObjectName = info.internalNames.get(
|
|
info.namespaceExportSymbol
|
|
);
|
|
} else {
|
|
namespaceObjectName = this.findNewName(
|
|
"namespaceObject",
|
|
allUsedNames,
|
|
namespaceObjectUsedNames,
|
|
info.module.readableIdentifier(requestShortener)
|
|
);
|
|
allUsedNames.add(namespaceObjectName);
|
|
}
|
|
info.namespaceObjectName = namespaceObjectName;
|
|
topLevelDeclarations.add(namespaceObjectName);
|
|
break;
|
|
}
|
|
case "external": {
|
|
const externalName = this.findNewName(
|
|
"",
|
|
allUsedNames,
|
|
namespaceObjectUsedNames,
|
|
info.module.readableIdentifier(requestShortener)
|
|
);
|
|
allUsedNames.add(externalName);
|
|
info.name = externalName;
|
|
topLevelDeclarations.add(externalName);
|
|
break;
|
|
}
|
|
}
|
|
if (info.module.buildMeta.exportsType !== "namespace") {
|
|
const externalNameInterop = this.findNewName(
|
|
"namespaceObject",
|
|
allUsedNames,
|
|
namespaceObjectUsedNames,
|
|
info.module.readableIdentifier(requestShortener)
|
|
);
|
|
allUsedNames.add(externalNameInterop);
|
|
info.interopNamespaceObjectName = externalNameInterop;
|
|
topLevelDeclarations.add(externalNameInterop);
|
|
}
|
|
if (
|
|
info.module.buildMeta.exportsType === "default" &&
|
|
info.module.buildMeta.defaultObject !== "redirect"
|
|
) {
|
|
const externalNameInterop = this.findNewName(
|
|
"namespaceObject2",
|
|
allUsedNames,
|
|
namespaceObjectUsedNames,
|
|
info.module.readableIdentifier(requestShortener)
|
|
);
|
|
allUsedNames.add(externalNameInterop);
|
|
info.interopNamespaceObject2Name = externalNameInterop;
|
|
topLevelDeclarations.add(externalNameInterop);
|
|
}
|
|
if (
|
|
info.module.buildMeta.exportsType === "dynamic" ||
|
|
!info.module.buildMeta.exportsType
|
|
) {
|
|
const externalNameInterop = this.findNewName(
|
|
"default",
|
|
allUsedNames,
|
|
namespaceObjectUsedNames,
|
|
info.module.readableIdentifier(requestShortener)
|
|
);
|
|
allUsedNames.add(externalNameInterop);
|
|
info.interopDefaultAccessName = externalNameInterop;
|
|
topLevelDeclarations.add(externalNameInterop);
|
|
}
|
|
}
|
|
|
|
// Find and replace references to modules
|
|
for (const info of moduleToInfoMap.values()) {
|
|
if (info.type === "concatenated") {
|
|
for (const reference of info.globalScope.through) {
|
|
const name = reference.identifier.name;
|
|
const match = ConcatenationScope.matchModuleReference(name);
|
|
if (match) {
|
|
const referencedInfo = modulesWithInfo[match.index];
|
|
if (referencedInfo.type === "reference")
|
|
throw new Error("Module reference can't point to a reference");
|
|
const finalName = getFinalName(
|
|
moduleGraph,
|
|
referencedInfo,
|
|
match.ids,
|
|
moduleToInfoMap,
|
|
runtime,
|
|
requestShortener,
|
|
runtimeTemplate,
|
|
neededNamespaceObjects,
|
|
match.call,
|
|
!match.directImport,
|
|
info.module.buildMeta.strictHarmonyModule,
|
|
match.asiSafe
|
|
);
|
|
const r = reference.identifier.range;
|
|
const source = info.source;
|
|
// range is extended by 2 chars to cover the appended "._"
|
|
source.replace(r[0], r[1] + 1, finalName);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Map with all root exposed used exports
|
|
/** @type {Map<string, function(RequestShortener): string>} */
|
|
const exportsMap = new Map();
|
|
|
|
// Set with all root exposed unused exports
|
|
/** @type {Set<string>} */
|
|
const unusedExports = new Set();
|
|
|
|
const rootInfo = /** @type {ConcatenatedModuleInfo} */ (
|
|
moduleToInfoMap.get(this.rootModule)
|
|
);
|
|
const strictHarmonyModule = rootInfo.module.buildMeta.strictHarmonyModule;
|
|
const exportsInfo = moduleGraph.getExportsInfo(rootInfo.module);
|
|
for (const exportInfo of exportsInfo.orderedExports) {
|
|
const name = exportInfo.name;
|
|
if (exportInfo.provided === false) continue;
|
|
const used = exportInfo.getUsedName(undefined, runtime);
|
|
if (!used) {
|
|
unusedExports.add(name);
|
|
continue;
|
|
}
|
|
exportsMap.set(used, requestShortener => {
|
|
try {
|
|
const finalName = getFinalName(
|
|
moduleGraph,
|
|
rootInfo,
|
|
[name],
|
|
moduleToInfoMap,
|
|
runtime,
|
|
requestShortener,
|
|
runtimeTemplate,
|
|
neededNamespaceObjects,
|
|
false,
|
|
false,
|
|
strictHarmonyModule,
|
|
true
|
|
);
|
|
return `/* ${
|
|
exportInfo.isReexport() ? "reexport" : "binding"
|
|
} */ ${finalName}`;
|
|
} catch (e) {
|
|
e.message += `\nwhile generating the root export '${name}' (used name: '${used}')`;
|
|
throw e;
|
|
}
|
|
});
|
|
}
|
|
|
|
const result = new ConcatSource();
|
|
|
|
// add harmony compatibility flag (must be first because of possible circular dependencies)
|
|
if (
|
|
moduleGraph.getExportsInfo(this).otherExportsInfo.getUsed(runtime) !==
|
|
UsageState.Unused
|
|
) {
|
|
result.add(`// ESM COMPAT FLAG\n`);
|
|
result.add(
|
|
runtimeTemplate.defineEsModuleFlagStatement({
|
|
exportsArgument: this.exportsArgument,
|
|
runtimeRequirements
|
|
})
|
|
);
|
|
}
|
|
|
|
// define exports
|
|
if (exportsMap.size > 0) {
|
|
runtimeRequirements.add(RuntimeGlobals.exports);
|
|
runtimeRequirements.add(RuntimeGlobals.definePropertyGetters);
|
|
const definitions = [];
|
|
for (const [key, value] of exportsMap) {
|
|
definitions.push(
|
|
`\n ${propertyName(key)}: ${runtimeTemplate.returningFunction(
|
|
value(requestShortener)
|
|
)}`
|
|
);
|
|
}
|
|
result.add(`\n// EXPORTS\n`);
|
|
result.add(
|
|
`${RuntimeGlobals.definePropertyGetters}(${
|
|
this.exportsArgument
|
|
}, {${definitions.join(",")}\n});\n`
|
|
);
|
|
}
|
|
|
|
// list unused exports
|
|
if (unusedExports.size > 0) {
|
|
result.add(
|
|
`\n// UNUSED EXPORTS: ${joinIterableWithComma(unusedExports)}\n`
|
|
);
|
|
}
|
|
|
|
// generate namespace objects
|
|
const namespaceObjectSources = new Map();
|
|
for (const info of neededNamespaceObjects) {
|
|
if (info.namespaceExportSymbol) continue;
|
|
const nsObj = [];
|
|
const exportsInfo = moduleGraph.getExportsInfo(info.module);
|
|
for (const exportInfo of exportsInfo.orderedExports) {
|
|
if (exportInfo.provided === false) continue;
|
|
const usedName = exportInfo.getUsedName(undefined, runtime);
|
|
if (usedName) {
|
|
const finalName = getFinalName(
|
|
moduleGraph,
|
|
info,
|
|
[exportInfo.name],
|
|
moduleToInfoMap,
|
|
runtime,
|
|
requestShortener,
|
|
runtimeTemplate,
|
|
neededNamespaceObjects,
|
|
false,
|
|
undefined,
|
|
info.module.buildMeta.strictHarmonyModule,
|
|
true
|
|
);
|
|
nsObj.push(
|
|
`\n ${propertyName(usedName)}: ${runtimeTemplate.returningFunction(
|
|
finalName
|
|
)}`
|
|
);
|
|
}
|
|
}
|
|
const name = info.namespaceObjectName;
|
|
const defineGetters =
|
|
nsObj.length > 0
|
|
? `${RuntimeGlobals.definePropertyGetters}(${name}, {${nsObj.join(
|
|
","
|
|
)}\n});\n`
|
|
: "";
|
|
if (nsObj.length > 0)
|
|
runtimeRequirements.add(RuntimeGlobals.definePropertyGetters);
|
|
namespaceObjectSources.set(
|
|
info,
|
|
`
|
|
// NAMESPACE OBJECT: ${info.module.readableIdentifier(requestShortener)}
|
|
var ${name} = {};
|
|
${RuntimeGlobals.makeNamespaceObject}(${name});
|
|
${defineGetters}`
|
|
);
|
|
runtimeRequirements.add(RuntimeGlobals.makeNamespaceObject);
|
|
}
|
|
|
|
// define required namespace objects (must be before evaluation modules)
|
|
for (const info of modulesWithInfo) {
|
|
if (info.type === "concatenated") {
|
|
const source = namespaceObjectSources.get(info);
|
|
if (!source) continue;
|
|
result.add(source);
|
|
}
|
|
}
|
|
|
|
const chunkInitFragments = [];
|
|
|
|
// evaluate modules in order
|
|
for (const rawInfo of modulesWithInfo) {
|
|
let name;
|
|
let isConditional = false;
|
|
const info = rawInfo.type === "reference" ? rawInfo.target : rawInfo;
|
|
switch (info.type) {
|
|
case "concatenated": {
|
|
result.add(
|
|
`\n;// CONCATENATED MODULE: ${info.module.readableIdentifier(
|
|
requestShortener
|
|
)}\n`
|
|
);
|
|
result.add(info.source);
|
|
if (info.chunkInitFragments) {
|
|
for (const f of info.chunkInitFragments) chunkInitFragments.push(f);
|
|
}
|
|
if (info.runtimeRequirements) {
|
|
for (const r of info.runtimeRequirements) {
|
|
runtimeRequirements.add(r);
|
|
}
|
|
}
|
|
name = info.namespaceObjectName;
|
|
break;
|
|
}
|
|
case "external": {
|
|
result.add(
|
|
`\n// EXTERNAL MODULE: ${info.module.readableIdentifier(
|
|
requestShortener
|
|
)}\n`
|
|
);
|
|
runtimeRequirements.add(RuntimeGlobals.require);
|
|
const { runtimeCondition } =
|
|
/** @type {ExternalModuleInfo | ReferenceToModuleInfo} */ (rawInfo);
|
|
const condition = runtimeTemplate.runtimeConditionExpression({
|
|
chunkGraph,
|
|
runtimeCondition,
|
|
runtime,
|
|
runtimeRequirements
|
|
});
|
|
if (condition !== "true") {
|
|
isConditional = true;
|
|
result.add(`if (${condition}) {\n`);
|
|
}
|
|
result.add(
|
|
`var ${info.name} = ${RuntimeGlobals.require}(${JSON.stringify(
|
|
chunkGraph.getModuleId(info.module)
|
|
)});`
|
|
);
|
|
name = info.name;
|
|
break;
|
|
}
|
|
default:
|
|
// @ts-expect-error never is expected here
|
|
throw new Error(`Unsupported concatenation entry type ${info.type}`);
|
|
}
|
|
if (info.interopNamespaceObjectUsed) {
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
result.add(
|
|
`\nvar ${info.interopNamespaceObjectName} = /*#__PURE__*/${RuntimeGlobals.createFakeNamespaceObject}(${name}, 2);`
|
|
);
|
|
}
|
|
if (info.interopNamespaceObject2Used) {
|
|
runtimeRequirements.add(RuntimeGlobals.createFakeNamespaceObject);
|
|
result.add(
|
|
`\nvar ${info.interopNamespaceObject2Name} = /*#__PURE__*/${RuntimeGlobals.createFakeNamespaceObject}(${name});`
|
|
);
|
|
}
|
|
if (info.interopDefaultAccessUsed) {
|
|
runtimeRequirements.add(RuntimeGlobals.compatGetDefaultExport);
|
|
result.add(
|
|
`\nvar ${info.interopDefaultAccessName} = /*#__PURE__*/${RuntimeGlobals.compatGetDefaultExport}(${name});`
|
|
);
|
|
}
|
|
if (isConditional) {
|
|
result.add("\n}");
|
|
}
|
|
}
|
|
|
|
const data = new Map();
|
|
if (chunkInitFragments.length > 0)
|
|
data.set("chunkInitFragments", chunkInitFragments);
|
|
data.set("topLevelDeclarations", topLevelDeclarations);
|
|
|
|
/** @type {CodeGenerationResult} */
|
|
const resultEntry = {
|
|
sources: new Map([["javascript", new CachedSource(result)]]),
|
|
data,
|
|
runtimeRequirements
|
|
};
|
|
|
|
return resultEntry;
|
|
}
|
|
|
|
/**
|
|
* @param {Map<Module, ModuleInfo>} modulesMap modulesMap
|
|
* @param {ModuleInfo} info info
|
|
* @param {DependencyTemplates} dependencyTemplates dependencyTemplates
|
|
* @param {RuntimeTemplate} runtimeTemplate runtimeTemplate
|
|
* @param {ModuleGraph} moduleGraph moduleGraph
|
|
* @param {ChunkGraph} chunkGraph chunkGraph
|
|
* @param {RuntimeSpec} runtime runtime
|
|
* @param {CodeGenerationResults} codeGenerationResults codeGenerationResults
|
|
*/
|
|
_analyseModule(
|
|
modulesMap,
|
|
info,
|
|
dependencyTemplates,
|
|
runtimeTemplate,
|
|
moduleGraph,
|
|
chunkGraph,
|
|
runtime,
|
|
codeGenerationResults
|
|
) {
|
|
if (info.type === "concatenated") {
|
|
const m = info.module;
|
|
try {
|
|
// Create a concatenation scope to track and capture information
|
|
const concatenationScope = new ConcatenationScope(modulesMap, info);
|
|
|
|
// TODO cache codeGeneration results
|
|
const codeGenResult = m.codeGeneration({
|
|
dependencyTemplates,
|
|
runtimeTemplate,
|
|
moduleGraph,
|
|
chunkGraph,
|
|
runtime,
|
|
concatenationScope,
|
|
codeGenerationResults,
|
|
sourceTypes: TYPES
|
|
});
|
|
const source = codeGenResult.sources.get("javascript");
|
|
const data = codeGenResult.data;
|
|
const chunkInitFragments = data && data.get("chunkInitFragments");
|
|
const code = source.source().toString();
|
|
let ast;
|
|
try {
|
|
ast = JavascriptParser._parse(code, {
|
|
sourceType: "module"
|
|
});
|
|
} catch (err) {
|
|
if (
|
|
err.loc &&
|
|
typeof err.loc === "object" &&
|
|
typeof err.loc.line === "number"
|
|
) {
|
|
const lineNumber = err.loc.line;
|
|
const lines = code.split("\n");
|
|
err.message +=
|
|
"\n| " +
|
|
lines
|
|
.slice(Math.max(0, lineNumber - 3), lineNumber + 2)
|
|
.join("\n| ");
|
|
}
|
|
throw err;
|
|
}
|
|
const scopeManager = eslintScope.analyze(ast, {
|
|
ecmaVersion: 6,
|
|
sourceType: "module",
|
|
optimistic: true,
|
|
ignoreEval: true,
|
|
impliedStrict: true
|
|
});
|
|
const globalScope = scopeManager.acquire(ast);
|
|
const moduleScope = globalScope.childScopes[0];
|
|
const resultSource = new ReplaceSource(source);
|
|
info.runtimeRequirements = codeGenResult.runtimeRequirements;
|
|
info.ast = ast;
|
|
info.internalSource = source;
|
|
info.source = resultSource;
|
|
info.chunkInitFragments = chunkInitFragments;
|
|
info.globalScope = globalScope;
|
|
info.moduleScope = moduleScope;
|
|
} catch (err) {
|
|
err.message += `\nwhile analyzing module ${m.identifier()} for concatenation`;
|
|
throw err;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {ModuleGraph} moduleGraph the module graph
|
|
* @param {RuntimeSpec} runtime the runtime
|
|
* @returns {[ModuleInfoOrReference[], Map<Module, ModuleInfo>]} module info items
|
|
*/
|
|
_getModulesWithInfo(moduleGraph, runtime) {
|
|
const orderedConcatenationList = this._createConcatenationList(
|
|
this.rootModule,
|
|
this._modules,
|
|
runtime,
|
|
moduleGraph
|
|
);
|
|
/** @type {Map<Module, ModuleInfo>} */
|
|
const map = new Map();
|
|
const list = orderedConcatenationList.map((info, index) => {
|
|
let item = map.get(info.module);
|
|
if (item === undefined) {
|
|
switch (info.type) {
|
|
case "concatenated":
|
|
item = {
|
|
type: "concatenated",
|
|
module: info.module,
|
|
index,
|
|
ast: undefined,
|
|
internalSource: undefined,
|
|
runtimeRequirements: undefined,
|
|
source: undefined,
|
|
globalScope: undefined,
|
|
moduleScope: undefined,
|
|
internalNames: new Map(),
|
|
exportMap: undefined,
|
|
rawExportMap: undefined,
|
|
namespaceExportSymbol: undefined,
|
|
namespaceObjectName: undefined,
|
|
interopNamespaceObjectUsed: false,
|
|
interopNamespaceObjectName: undefined,
|
|
interopNamespaceObject2Used: false,
|
|
interopNamespaceObject2Name: undefined,
|
|
interopDefaultAccessUsed: false,
|
|
interopDefaultAccessName: undefined
|
|
};
|
|
break;
|
|
case "external":
|
|
item = {
|
|
type: "external",
|
|
module: info.module,
|
|
runtimeCondition: info.runtimeCondition,
|
|
index,
|
|
name: undefined,
|
|
interopNamespaceObjectUsed: false,
|
|
interopNamespaceObjectName: undefined,
|
|
interopNamespaceObject2Used: false,
|
|
interopNamespaceObject2Name: undefined,
|
|
interopDefaultAccessUsed: false,
|
|
interopDefaultAccessName: undefined
|
|
};
|
|
break;
|
|
default:
|
|
throw new Error(
|
|
`Unsupported concatenation entry type ${info.type}`
|
|
);
|
|
}
|
|
map.set(item.module, item);
|
|
return item;
|
|
} else {
|
|
/** @type {ReferenceToModuleInfo} */
|
|
const ref = {
|
|
type: "reference",
|
|
runtimeCondition: info.runtimeCondition,
|
|
target: item
|
|
};
|
|
return ref;
|
|
}
|
|
});
|
|
return [list, map];
|
|
}
|
|
|
|
findNewName(oldName, usedNamed1, usedNamed2, extraInfo) {
|
|
let name = oldName;
|
|
|
|
if (name === ConcatenationScope.DEFAULT_EXPORT) {
|
|
name = "";
|
|
}
|
|
if (name === ConcatenationScope.NAMESPACE_OBJECT_EXPORT) {
|
|
name = "namespaceObject";
|
|
}
|
|
|
|
// Remove uncool stuff
|
|
extraInfo = extraInfo.replace(
|
|
/\.+\/|(\/index)?\.([a-zA-Z0-9]{1,4})($|\s|\?)|\s*\+\s*\d+\s*modules/g,
|
|
""
|
|
);
|
|
|
|
const splittedInfo = extraInfo.split("/");
|
|
while (splittedInfo.length) {
|
|
name = splittedInfo.pop() + (name ? "_" + name : "");
|
|
const nameIdent = Template.toIdentifier(name);
|
|
if (
|
|
!usedNamed1.has(nameIdent) &&
|
|
(!usedNamed2 || !usedNamed2.has(nameIdent))
|
|
)
|
|
return nameIdent;
|
|
}
|
|
|
|
let i = 0;
|
|
let nameWithNumber = Template.toIdentifier(`${name}_${i}`);
|
|
while (
|
|
usedNamed1.has(nameWithNumber) ||
|
|
(usedNamed2 && usedNamed2.has(nameWithNumber))
|
|
) {
|
|
i++;
|
|
nameWithNumber = Template.toIdentifier(`${name}_${i}`);
|
|
}
|
|
return nameWithNumber;
|
|
}
|
|
|
|
/**
|
|
* @param {Hash} hash the hash used to track dependencies
|
|
* @param {UpdateHashContext} context context
|
|
* @returns {void}
|
|
*/
|
|
updateHash(hash, context) {
|
|
const { chunkGraph, runtime } = context;
|
|
for (const info of this._createConcatenationList(
|
|
this.rootModule,
|
|
this._modules,
|
|
intersectRuntime(runtime, this._runtime),
|
|
chunkGraph.moduleGraph
|
|
)) {
|
|
switch (info.type) {
|
|
case "concatenated":
|
|
info.module.updateHash(hash, context);
|
|
break;
|
|
case "external":
|
|
hash.update(`${chunkGraph.getModuleId(info.module)}`);
|
|
// TODO runtimeCondition
|
|
break;
|
|
}
|
|
}
|
|
super.updateHash(hash, context);
|
|
}
|
|
|
|
static deserialize(context) {
|
|
const obj = new ConcatenatedModule({
|
|
identifier: undefined,
|
|
rootModule: undefined,
|
|
modules: undefined,
|
|
runtime: undefined
|
|
});
|
|
obj.deserialize(context);
|
|
return obj;
|
|
}
|
|
}
|
|
|
|
makeSerializable(ConcatenatedModule, "webpack/lib/optimize/ConcatenatedModule");
|
|
|
|
module.exports = ConcatenatedModule;
|