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ConcatenatedModule.js
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ConcatenatedModule.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const eslintScope = require("eslint-scope");
const Referencer = require("eslint-scope/lib/referencer");
const { SyncBailHook } = require("tapable");
const {
CachedSource,
ConcatSource,
ReplaceSource
} = require("webpack-sources");
const ConcatenationScope = require("../ConcatenationScope");
const { UsageState } = require("../ExportsInfo");
const Module = require("../Module");
const { JAVASCRIPT_MODULE_TYPE_ESM } = require("../ModuleTypeConstants");
const RuntimeGlobals = require("../RuntimeGlobals");
const Template = require("../Template");
const HarmonyImportDependency = require("../dependencies/HarmonyImportDependency");
const JavascriptParser = require("../javascript/JavascriptParser");
const { equals } = require("../util/ArrayHelpers");
const LazySet = require("../util/LazySet");
const { concatComparators } = require("../util/comparators");
const createHash = require("../util/createHash");
const { makePathsRelative } = require("../util/identifier");
const makeSerializable = require("../util/makeSerializable");
const propertyAccess = require("../util/propertyAccess");
const { propertyName } = require("../util/propertyName");
const {
filterRuntime,
intersectRuntime,
mergeRuntimeCondition,
mergeRuntimeConditionNonFalse,
runtimeConditionToString,
subtractRuntimeCondition
} = require("../util/runtime");
/** @typedef {import("eslint-scope").Reference} Reference */
/** @typedef {import("eslint-scope").Scope} Scope */
/** @typedef {import("eslint-scope").Variable} Variable */
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("../ChunkGraph")} ChunkGraph */
/** @typedef {import("../CodeGenerationResults")} CodeGenerationResults */
/** @typedef {import("../Compilation")} Compilation */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../DependencyTemplates")} DependencyTemplates */
/** @typedef {import("../ExportsInfo").ExportInfo} ExportInfo */
/** @typedef {import("../Module").BuildInfo} BuildInfo */
/** @typedef {import("../Module").BuildMeta} BuildMeta */
/** @typedef {import("../Module").CodeGenerationContext} CodeGenerationContext */
/** @typedef {import("../Module").CodeGenerationResult} CodeGenerationResult */
/** @typedef {import("../Module").LibIdentOptions} LibIdentOptions */
/** @typedef {import("../Module").ReadOnlyRuntimeRequirements} ReadOnlyRuntimeRequirements */
/** @typedef {import("../Module").SourceTypes} SourceTypes */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../ModuleGraphConnection")} ModuleGraphConnection */
/** @typedef {import("../ModuleGraphConnection").ConnectionState} ConnectionState */
/** @typedef {import("../RequestShortener")} RequestShortener */
/** @typedef {import("../ResolverFactory").ResolverWithOptions} ResolverWithOptions */
/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
/** @typedef {import("../WebpackError")} WebpackError */
/** @typedef {import("../javascript/JavascriptModulesPlugin").ChunkRenderContext} ChunkRenderContext */
/** @typedef {import("../javascript/JavascriptParser").Program} Program */
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../util/Hash")} Hash */
/** @typedef {typeof import("../util/Hash")} HashConstructor */
/** @typedef {import("../util/fs").InputFileSystem} InputFileSystem */
/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
/**
* @template T
* @typedef {import("../InitFragment")<T>} InitFragment
*/
/**
* @template T
* @typedef {import("../util/comparators").Comparator<T>} Comparator
*/
// fix eslint-scope to support class properties correctly
// cspell:word Referencer
const ReferencerClass = /** @type {any} */ (Referencer);
if (!ReferencerClass.prototype.PropertyDefinition) {
ReferencerClass.prototype.PropertyDefinition =
ReferencerClass.prototype.Property;
}
/**
* @typedef {Object} ReexportInfo
* @property {Module} module
* @property {string[]} export
*/
/** @typedef {RawBinding | SymbolBinding} Binding */
/**
* @typedef {Object} RawBinding
* @property {ModuleInfo} info
* @property {string} rawName
* @property {string=} comment
* @property {string[]} ids
* @property {string[]} exportName
*/
/**
* @typedef {Object} SymbolBinding
* @property {ConcatenatedModuleInfo} info
* @property {string} name
* @property {string=} comment
* @property {string[]} ids
* @property {string[]} exportName
*/
/** @typedef {ConcatenatedModuleInfo | ExternalModuleInfo } ModuleInfo */
/** @typedef {ConcatenatedModuleInfo | ExternalModuleInfo | ReferenceToModuleInfo } ModuleInfoOrReference */
/**
* @typedef {Object} ConcatenatedModuleInfo
* @property {"concatenated"} type
* @property {Module} module
* @property {number} index
* @property {Program | undefined} ast
* @property {Source} internalSource
* @property {ReplaceSource} source
* @property {InitFragment<ChunkRenderContext>[]=} chunkInitFragments
* @property {ReadOnlyRuntimeRequirements} runtimeRequirements
* @property {Scope} globalScope
* @property {Scope} moduleScope
* @property {Map<string, string>} internalNames
* @property {Map<string, string> | undefined} exportMap
* @property {Map<string, string> | undefined} rawExportMap
* @property {string=} namespaceExportSymbol
* @property {string | undefined} namespaceObjectName
* @property {boolean} interopNamespaceObjectUsed
* @property {string | undefined} interopNamespaceObjectName
* @property {boolean} interopNamespaceObject2Used
* @property {string | undefined} interopNamespaceObject2Name
* @property {boolean} interopDefaultAccessUsed
* @property {string | undefined} interopDefaultAccessName
*/
/**
* @typedef {Object} ExternalModuleInfo
* @property {"external"} type
* @property {Module} module
* @property {RuntimeSpec | boolean} runtimeCondition
* @property {number} index
* @property {string} name
* @property {boolean} interopNamespaceObjectUsed
* @property {string} interopNamespaceObjectName
* @property {boolean} interopNamespaceObject2Used
* @property {string} interopNamespaceObject2Name
* @property {boolean} interopDefaultAccessUsed
* @property {string} interopDefaultAccessName
*/
/**
* @typedef {Object} ReferenceToModuleInfo
* @property {"reference"} type
* @property {RuntimeSpec | boolean} runtimeCondition
* @property {ConcatenatedModuleInfo | ExternalModuleInfo} target
*/
/** @typedef {Set<string>} UsedNames */
const RESERVED_NAMES = new Set(
[
// internal names (should always be renamed)
ConcatenationScope.DEFAULT_EXPORT,
ConcatenationScope.NAMESPACE_OBJECT_EXPORT,
// keywords
"abstract,arguments,async,await,boolean,break,byte,case,catch,char,class,const,continue",
"debugger,default,delete,do,double,else,enum,eval,export,extends,false,final,finally,float",
"for,function,goto,if,implements,import,in,instanceof,int,interface,let,long,native,new,null",
"package,private,protected,public,return,short,static,super,switch,synchronized,this,throw",
"throws,transient,true,try,typeof,var,void,volatile,while,with,yield",
// commonjs/amd
"module,__dirname,__filename,exports,require,define",
// js globals
"Array,Date,eval,function,hasOwnProperty,Infinity,isFinite,isNaN,isPrototypeOf,length,Math",
"NaN,name,Number,Object,prototype,String,toString,undefined,valueOf",
// browser globals
"alert,all,anchor,anchors,area,assign,blur,button,checkbox,clearInterval,clearTimeout",
"clientInformation,close,closed,confirm,constructor,crypto,decodeURI,decodeURIComponent",
"defaultStatus,document,element,elements,embed,embeds,encodeURI,encodeURIComponent,escape",
"event,fileUpload,focus,form,forms,frame,innerHeight,innerWidth,layer,layers,link,location",
"mimeTypes,navigate,navigator,frames,frameRate,hidden,history,image,images,offscreenBuffering",
"open,opener,option,outerHeight,outerWidth,packages,pageXOffset,pageYOffset,parent,parseFloat",
"parseInt,password,pkcs11,plugin,prompt,propertyIsEnum,radio,reset,screenX,screenY,scroll",
"secure,select,self,setInterval,setTimeout,status,submit,taint,text,textarea,top,unescape",
"untaint,window",
// window events
"onblur,onclick,onerror,onfocus,onkeydown,onkeypress,onkeyup,onmouseover,onload,onmouseup,onmousedown,onsubmit"
]
.join(",")
.split(",")
);
const createComparator = (property, comparator) => (a, b) =>
comparator(a[property], b[property]);
/**
* @param {number} a a
* @param {number} b b
* @returns {0 | 1 | -1} result
*/
const compareNumbers = (a, b) => {
if (isNaN(a)) {
if (!isNaN(b)) {
return 1;
}
} else {
if (isNaN(b)) {
return -1;
}
if (a !== b) {
return a < b ? -1 : 1;
}
}
return 0;
};
const bySourceOrder = createComparator("sourceOrder", compareNumbers);
const byRangeStart = createComparator("rangeStart", compareNumbers);
/**
* @param {Iterable<string>} iterable iterable object
* @returns {string} joined iterable object
*/
const joinIterableWithComma = iterable => {
// This is more performant than Array.from().join(", ")
// as it doesn't create an array
let str = "";
let first = true;
for (const item of iterable) {
if (first) {
first = false;
} else {
str += ", ";
}
str += item;
}
return str;
};
/**
* @typedef {Object} ConcatenationEntry
* @property {"concatenated" | "external"} type
* @property {Module} module
* @property {RuntimeSpec | boolean} runtimeCondition
*/
/**
* @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 | undefined} strictHarmonyModule strictHarmonyModule
* @param {boolean | undefined} asiSafe asiSafe
* @param {Set<ExportInfo>} alreadyVisited alreadyVisited
* @returns {Binding} the final variable
*/
const getFinalBinding = (
moduleGraph,
info,
exportName,
moduleToInfoMap,
runtime,
requestShortener,
runtimeTemplate,
neededNamespaceObjects,
asCall,
strictHarmonyModule,
asiSafe,
alreadyVisited = new Set()
) => {
const exportsType = info.module.getExportsType(
moduleGraph,
strictHarmonyModule
);
if (exportName.length === 0) {
switch (exportsType) {
case "default-only":
info.interopNamespaceObject2Used = true;
return {
info,
rawName: /** @type {string} */ (info.interopNamespaceObject2Name),
ids: exportName,
exportName
};
case "default-with-named":
info.interopNamespaceObjectUsed = true;
return {
info,
rawName: /** @type {string} */ (info.interopNamespaceObjectName),
ids: exportName,
exportName
};
case "namespace":
case "dynamic":
break;
default:
throw new Error(`Unexpected exportsType ${exportsType}`);
}
} else {
switch (exportsType) {
case "namespace":
break;
case "default-with-named":
switch (exportName[0]) {
case "default":
exportName = exportName.slice(1);
break;
case "__esModule":
return {
info,
rawName: "/* __esModule */true",
ids: exportName.slice(1),
exportName
};
}
break;
case "default-only": {
const exportId = exportName[0];
if (exportId === "__esModule") {
return {
info,
rawName: "/* __esModule */true",
ids: exportName.slice(1),
exportName
};
}
exportName = exportName.slice(1);
if (exportId !== "default") {
return {
info,
rawName:
"/* non-default import from default-exporting module */undefined",
ids: exportName,
exportName
};
}
break;
}
case "dynamic":
switch (exportName[0]) {
case "default": {
exportName = exportName.slice(1);
info.interopDefaultAccessUsed = true;
const defaultExport = asCall
? `${info.interopDefaultAccessName}()`
: asiSafe
? `(${info.interopDefaultAccessName}())`
: asiSafe === false
? `;(${info.interopDefaultAccessName}())`
: `${info.interopDefaultAccessName}.a`;
return {
info,
rawName: defaultExport,
ids: exportName,
exportName
};
}
case "__esModule":
return {
info,
rawName: "/* __esModule */true",
ids: exportName.slice(1),
exportName
};
}
break;
default:
throw new Error(`Unexpected exportsType ${exportsType}`);
}
}
if (exportName.length === 0) {
switch (info.type) {
case "concatenated":
neededNamespaceObjects.add(info);
return {
info,
rawName: /** @type {string} */ (info.namespaceObjectName),
ids: exportName,
exportName
};
case "external":
return { info, rawName: info.name, ids: exportName, exportName };
}
}
const exportsInfo = moduleGraph.getExportsInfo(info.module);
const exportInfo = exportsInfo.getExportInfo(exportName[0]);
if (alreadyVisited.has(exportInfo)) {
return {
info,
rawName: "/* circular reexport */ Object(function x() { x() }())",
ids: [],
exportName
};
}
alreadyVisited.add(exportInfo);
switch (info.type) {
case "concatenated": {
const exportId = exportName[0];
if (exportInfo.provided === false) {
// It's not provided, but it could be on the prototype
neededNamespaceObjects.add(info);
return {
info,
rawName: /** @type {string} */ (info.namespaceObjectName),
ids: exportName,
exportName
};
}
const directExport = info.exportMap && info.exportMap.get(exportId);
if (directExport) {
const usedName = /** @type {string[]} */ (
exportsInfo.getUsedName(exportName, runtime)
);
if (!usedName) {
return {
info,
rawName: "/* unused export */ undefined",
ids: exportName.slice(1),
exportName
};
}
return {
info,
name: directExport,
ids: usedName.slice(1),
exportName
};
}
const rawExport = info.rawExportMap && info.rawExportMap.get(exportId);
if (rawExport) {
return {
info,
rawName: rawExport,
ids: exportName.slice(1),
exportName
};
}
const reexport = exportInfo.findTarget(moduleGraph, module =>
moduleToInfoMap.has(module)
);
if (reexport === false) {
throw new Error(
`Target module of reexport from '${info.module.readableIdentifier(
requestShortener
)}' is not part of the concatenation (export '${exportId}')\nModules in the concatenation:\n${Array.from(
moduleToInfoMap,
([m, info]) =>
` * ${info.type} ${m.readableIdentifier(requestShortener)}`
).join("\n")}`
);
}
if (reexport) {
const refInfo = moduleToInfoMap.get(reexport.module);
return getFinalBinding(
moduleGraph,
/** @type {ModuleInfo} */ (refInfo),
reexport.export
? [...reexport.export, ...exportName.slice(1)]
: exportName.slice(1),
moduleToInfoMap,
runtime,
requestShortener,
runtimeTemplate,
neededNamespaceObjects,
asCall,
/** @type {BuildMeta} */
(info.module.buildMeta).strictHarmonyModule,
asiSafe,
alreadyVisited
);
}
if (info.namespaceExportSymbol) {
const usedName = /** @type {string[]} */ (
exportsInfo.getUsedName(exportName, runtime)
);
return {
info,
rawName: /** @type {string} */ (info.namespaceObjectName),
ids: usedName,
exportName
};
}
throw new Error(
`Cannot get final name for export '${exportName.join(
"."
)}' of ${info.module.readableIdentifier(requestShortener)}`
);
}
case "external": {
const used = /** @type {string[]} */ (
exportsInfo.getUsedName(exportName, runtime)
);
if (!used) {
return {
info,
rawName: "/* unused export */ undefined",
ids: exportName.slice(1),
exportName
};
}
const comment = equals(used, exportName)
? ""
: Template.toNormalComment(`${exportName.join(".")}`);
return { info, rawName: info.name + comment, ids: used, exportName };
}
}
};
/**
* @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 | undefined} callContext callContext
* @param {boolean | undefined} strictHarmonyModule strictHarmonyModule
* @param {boolean | undefined} asiSafe asiSafe
* @returns {string} the final name
*/
const getFinalName = (
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;
}
};
/**
* @param {Scope | null} s scope
* @param {UsedNames} nameSet name set
* @param {TODO} scopeSet1 scope set 1
* @param {TODO} scopeSet2 scope set 2
*/
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;
}
};
/**
* @param {Variable} variable variable
* @returns {Reference[]} references
*/
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;
};
/**
* @param {TODO} ast ast
* @param {TODO} node node
* @returns {TODO} result
*/
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"]);
/**
* @typedef {Object} ConcatenateModuleHooks
* @property {SyncBailHook<[Record<string, string>]>} exportsDefinitions
*/
/** @type {WeakMap<Compilation, ConcatenateModuleHooks>} */
const compilationHooksMap = new WeakMap();
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 {Compilation} compilation the compilation
* @param {Object=} associatedObjectForCache object for caching
* @param {string | HashConstructor=} hashFunction hash function to use
* @returns {ConcatenatedModule} the module
*/
static create(
rootModule,
modules,
runtime,
compilation,
associatedObjectForCache,
hashFunction = "md4"
) {
const identifier = ConcatenatedModule._createIdentifier(
rootModule,
modules,
associatedObjectForCache,
hashFunction
);
return new ConcatenatedModule({
identifier,
rootModule,
modules,
runtime,
compilation
});
}
/**
* @param {Compilation} compilation the compilation
* @returns {ConcatenateModuleHooks} the attached hooks
*/
static getCompilationHooks(compilation) {
let hooks = compilationHooksMap.get(compilation);
if (hooks === undefined) {
hooks = {
exportsDefinitions: new SyncBailHook(["definitions"])
};
compilationHooksMap.set(compilation, hooks);
}
return hooks;
}
/**
* @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
* @param {Compilation} options.compilation the compilation
*/
constructor({ identifier, rootModule, modules, runtime, compilation }) {
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;
/** @type {Compilation | undefined} */
this.compilation = compilation;
}
/**
* 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 {SourceTypes} 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;
const { moduleArgument, exportsArgument } =
/** @type {BuildInfo} */
(rootModule.buildInfo);
this.buildInfo = {
strict: true,
cacheable: true,
moduleArgument,
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 (!(/** @type {BuildInfo} */ (m.buildInfo).cacheable)) {
this.buildInfo.cacheable = false;
}
// populate dependencies
for (const d of m.dependencies.filter(
dep =>
!(dep instanceof HarmonyImportDependency) ||
!this._modules.has(
/** @type {Module} */ (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);
}
}
const { assets, assetsInfo, topLevelDeclarations } =
/** @type {BuildInfo} */ (m.buildInfo);
// populate topLevelDeclarations
if (topLevelDeclarations) {
const topLevelDeclarations = this.buildInfo.topLevelDeclarations;
if (topLevelDeclarations !== undefined) {
for (const decl of topLevelDeclarations) {
topLevelDeclarations.add(decl);
}
}
} else {
this.buildInfo.topLevelDeclarations = undefined;
}
// populate assets
if (assets) {
if (this.buildInfo.assets === undefined) {
this.buildInfo.assets = Object.create(null);
}
Object.assign(/** @type {BuildInfo} */ (this.buildInfo).assets, assets);
}
if (assetsInfo) {
if (this.buildInfo.assetsInfo === undefined) {
this.buildInfo.assetsInfo = new Map();
}
for (const [key, value] of 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]
};
});
/**