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Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const util = require("util");
const ChunkGraph = require("./ChunkGraph");
const DependenciesBlock = require("./DependenciesBlock");
const ModuleGraph = require("./ModuleGraph");
const RuntimeGlobals = require("./RuntimeGlobals");
const { first } = require("./util/SetHelpers");
const { compareChunksById } = require("./util/comparators");
const makeSerializable = require("./util/makeSerializable");
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../declarations/WebpackOptions").ResolveOptions} ResolveOptions */
/** @typedef {import("../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("./Chunk")} Chunk */
/** @typedef {import("./ChunkGroup")} ChunkGroup */
/** @typedef {import("./CodeGenerationResults")} CodeGenerationResults */
/** @typedef {import("./Compilation")} Compilation */
/** @typedef {import("./Compilation").AssetInfo} AssetInfo */
/** @typedef {import("./ConcatenationScope")} ConcatenationScope */
/** @typedef {import("./Dependency")} Dependency */
/** @typedef {import("./Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("./DependencyTemplates")} DependencyTemplates */
/** @typedef {import("./ExportsInfo").UsageStateType} UsageStateType */
/** @typedef {import("./FileSystemInfo")} FileSystemInfo */
/** @typedef {import("./FileSystemInfo").Snapshot} Snapshot */
/** @typedef {import("./ModuleGraphConnection").ConnectionState} ConnectionState */
/** @typedef {import("./ModuleTypeConstants").ModuleTypes} ModuleTypes */
/** @typedef {import("./NormalModuleFactory")} NormalModuleFactory */
/** @typedef {import("./RequestShortener")} RequestShortener */
/** @typedef {import("./ResolverFactory").ResolverWithOptions} ResolverWithOptions */
/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
/** @typedef {import("./WebpackError")} WebpackError */
/** @typedef {import("./serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("./serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
/** @typedef {import("./util/Hash")} Hash */
/** @template T @typedef {import("./util/LazySet")} LazySet */
/** @template T @typedef {import("./util/SortableSet")} SortableSet */
/** @typedef {import("./util/fs").InputFileSystem} InputFileSystem */
/** @typedef {import("./util/runtime").RuntimeSpec} RuntimeSpec */
/**
* @typedef {object} SourceContext
* @property {DependencyTemplates} dependencyTemplates the dependency templates
* @property {RuntimeTemplate} runtimeTemplate the runtime template
* @property {ModuleGraph} moduleGraph the module graph
* @property {ChunkGraph} chunkGraph the chunk graph
* @property {RuntimeSpec} runtime the runtimes code should be generated for
* @property {string=} type the type of source that should be generated
*/
// TODO webpack 6: compilation will be required in CodeGenerationContext
/**
* @typedef {object} CodeGenerationContext
* @property {DependencyTemplates} dependencyTemplates the dependency templates
* @property {RuntimeTemplate} runtimeTemplate the runtime template
* @property {ModuleGraph} moduleGraph the module graph
* @property {ChunkGraph} chunkGraph the chunk graph
* @property {RuntimeSpec} runtime the runtimes code should be generated for
* @property {ConcatenationScope=} concatenationScope when in concatenated module, information about other concatenated modules
* @property {CodeGenerationResults | undefined} codeGenerationResults code generation results of other modules (need to have a codeGenerationDependency to use that)
* @property {Compilation=} compilation the compilation
* @property {ReadonlySet=} sourceTypes source types
*/
/**
* @typedef {object} ConcatenationBailoutReasonContext
* @property {ModuleGraph} moduleGraph the module graph
* @property {ChunkGraph} chunkGraph the chunk graph
*/
/** @typedef {Set} RuntimeRequirements */
/** @typedef {ReadonlySet} ReadOnlyRuntimeRequirements */
/**
* @typedef {object} CodeGenerationResult
* @property {Map} sources the resulting sources for all source types
* @property {Map=} data the resulting data for all source types
* @property {ReadOnlyRuntimeRequirements} runtimeRequirements the runtime requirements
* @property {string=} hash a hash of the code generation result (will be automatically calculated from sources and runtimeRequirements if not provided)
*/
/**
* @typedef {object} LibIdentOptions
* @property {string} context absolute context path to which lib ident is relative to
* @property {object=} associatedObjectForCache object for caching
*/
/**
* @typedef {object} KnownBuildMeta
* @property {string=} moduleArgument
* @property {string=} exportsArgument
* @property {boolean=} strict
* @property {string=} moduleConcatenationBailout
* @property {("default" | "namespace" | "flagged" | "dynamic")=} exportsType
* @property {(false | "redirect" | "redirect-warn")=} defaultObject
* @property {boolean=} strictHarmonyModule
* @property {boolean=} async
* @property {boolean=} sideEffectFree
*/
/**
* @typedef {object} KnownBuildInfo
* @property {boolean=} cacheable
* @property {boolean=} parsed
* @property {LazySet=} fileDependencies
* @property {LazySet=} contextDependencies
* @property {LazySet=} missingDependencies
* @property {LazySet=} buildDependencies
* @property {(Map>)=} valueDependencies
* @property {TODO=} hash
* @property {Record=} assets
* @property {Map=} assetsInfo
* @property {(Snapshot | null)=} snapshot
*/
/**
* @typedef {object} NeedBuildContext
* @property {Compilation} compilation
* @property {FileSystemInfo} fileSystemInfo
* @property {Map>} valueCacheVersions
*/
/** @typedef {KnownBuildMeta & Record} BuildMeta */
/** @typedef {KnownBuildInfo & Record} BuildInfo */
/**
* @typedef {object} FactoryMeta
* @property {boolean=} sideEffectFree
*/
/** @typedef {Set} SourceTypes */
/** @typedef {{ factoryMeta: FactoryMeta | undefined, resolveOptions: ResolveOptions | undefined }} UnsafeCacheData */
const EMPTY_RESOLVE_OPTIONS = {};
let debugId = 1000;
const DEFAULT_TYPES_UNKNOWN = new Set(["unknown"]);
const DEFAULT_TYPES_JS = new Set(["javascript"]);
const deprecatedNeedRebuild = util.deprecate(
/**
* @param {Module} module the module
* @param {NeedBuildContext} context context info
* @returns {boolean} true, when rebuild is needed
*/
(module, context) => {
return module.needRebuild(
context.fileSystemInfo.getDeprecatedFileTimestamps(),
context.fileSystemInfo.getDeprecatedContextTimestamps()
);
},
"Module.needRebuild is deprecated in favor of Module.needBuild",
"DEP_WEBPACK_MODULE_NEED_REBUILD"
);
/** @typedef {(requestShortener: RequestShortener) => string} OptimizationBailoutFunction */
class Module extends DependenciesBlock {
/**
* @param {ModuleTypes | ""} type the module type, when deserializing the type is not known and is an empty string
* @param {(string | null)=} context an optional context
* @param {(string | null)=} layer an optional layer in which the module is
*/
constructor(type, context = null, layer = null) {
super();
/** @type {ModuleTypes} */
this.type = type;
/** @type {string | null} */
this.context = context;
/** @type {string | null} */
this.layer = layer;
/** @type {boolean} */
this.needId = true;
// Unique Id
/** @type {number} */
this.debugId = debugId++;
// Info from Factory
/** @type {ResolveOptions | undefined} */
this.resolveOptions = EMPTY_RESOLVE_OPTIONS;
/** @type {FactoryMeta | undefined} */
this.factoryMeta = undefined;
// TODO refactor this -> options object filled from Factory
// TODO webpack 6: use an enum
/** @type {boolean} */
this.useSourceMap = false;
/** @type {boolean} */
this.useSimpleSourceMap = false;
// Info from Build
/** @type {WebpackError[] | undefined} */
this._warnings = undefined;
/** @type {WebpackError[] | undefined} */
this._errors = undefined;
/** @type {BuildMeta | undefined} */
this.buildMeta = undefined;
/** @type {BuildInfo | undefined} */
this.buildInfo = undefined;
/** @type {Dependency[] | undefined} */
this.presentationalDependencies = undefined;
/** @type {Dependency[] | undefined} */
this.codeGenerationDependencies = undefined;
}
// TODO remove in webpack 6
// BACKWARD-COMPAT START
get id() {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.id",
"DEP_WEBPACK_MODULE_ID"
).getModuleId(this);
}
set id(value) {
if (value === "") {
this.needId = false;
return;
}
ChunkGraph.getChunkGraphForModule(
this,
"Module.id",
"DEP_WEBPACK_MODULE_ID"
).setModuleId(this, value);
}
/**
* @returns {string} the hash of the module
*/
get hash() {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.hash",
"DEP_WEBPACK_MODULE_HASH"
).getModuleHash(this, undefined);
}
/**
* @returns {string} the shortened hash of the module
*/
get renderedHash() {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.renderedHash",
"DEP_WEBPACK_MODULE_RENDERED_HASH"
).getRenderedModuleHash(this, undefined);
}
get profile() {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.profile",
"DEP_WEBPACK_MODULE_PROFILE"
).getProfile(this);
}
set profile(value) {
ModuleGraph.getModuleGraphForModule(
this,
"Module.profile",
"DEP_WEBPACK_MODULE_PROFILE"
).setProfile(this, value);
}
/**
* @returns {number | null} the pre order index
*/
get index() {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.index",
"DEP_WEBPACK_MODULE_INDEX"
).getPreOrderIndex(this);
}
/**
* @param {number} value the pre order index
*/
set index(value) {
ModuleGraph.getModuleGraphForModule(
this,
"Module.index",
"DEP_WEBPACK_MODULE_INDEX"
).setPreOrderIndex(this, value);
}
/**
* @returns {number | null} the post order index
*/
get index2() {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.index2",
"DEP_WEBPACK_MODULE_INDEX2"
).getPostOrderIndex(this);
}
/**
* @param {number} value the post order index
*/
set index2(value) {
ModuleGraph.getModuleGraphForModule(
this,
"Module.index2",
"DEP_WEBPACK_MODULE_INDEX2"
).setPostOrderIndex(this, value);
}
/**
* @returns {number | null} the depth
*/
get depth() {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.depth",
"DEP_WEBPACK_MODULE_DEPTH"
).getDepth(this);
}
/**
* @param {number} value the depth
*/
set depth(value) {
ModuleGraph.getModuleGraphForModule(
this,
"Module.depth",
"DEP_WEBPACK_MODULE_DEPTH"
).setDepth(this, value);
}
/**
* @returns {Module | null | undefined} issuer
*/
get issuer() {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.issuer",
"DEP_WEBPACK_MODULE_ISSUER"
).getIssuer(this);
}
/**
* @param {Module | null} value issuer
*/
set issuer(value) {
ModuleGraph.getModuleGraphForModule(
this,
"Module.issuer",
"DEP_WEBPACK_MODULE_ISSUER"
).setIssuer(this, value);
}
get usedExports() {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.usedExports",
"DEP_WEBPACK_MODULE_USED_EXPORTS"
).getUsedExports(this, undefined);
}
/**
* @deprecated
* @returns {(string | OptimizationBailoutFunction)[]} list
*/
get optimizationBailout() {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.optimizationBailout",
"DEP_WEBPACK_MODULE_OPTIMIZATION_BAILOUT"
).getOptimizationBailout(this);
}
get optional() {
return this.isOptional(
ModuleGraph.getModuleGraphForModule(
this,
"Module.optional",
"DEP_WEBPACK_MODULE_OPTIONAL"
)
);
}
/**
* @param {Chunk} chunk the chunk
* @returns {boolean} true, when the module was added
*/
addChunk(chunk) {
const chunkGraph = ChunkGraph.getChunkGraphForModule(
this,
"Module.addChunk",
"DEP_WEBPACK_MODULE_ADD_CHUNK"
);
if (chunkGraph.isModuleInChunk(this, chunk)) return false;
chunkGraph.connectChunkAndModule(chunk, this);
return true;
}
/**
* @param {Chunk} chunk the chunk
* @returns {void}
*/
removeChunk(chunk) {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.removeChunk",
"DEP_WEBPACK_MODULE_REMOVE_CHUNK"
).disconnectChunkAndModule(chunk, this);
}
/**
* @param {Chunk} chunk the chunk
* @returns {boolean} true, when the module is in the chunk
*/
isInChunk(chunk) {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.isInChunk",
"DEP_WEBPACK_MODULE_IS_IN_CHUNK"
).isModuleInChunk(this, chunk);
}
isEntryModule() {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.isEntryModule",
"DEP_WEBPACK_MODULE_IS_ENTRY_MODULE"
).isEntryModule(this);
}
getChunks() {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.getChunks",
"DEP_WEBPACK_MODULE_GET_CHUNKS"
).getModuleChunks(this);
}
getNumberOfChunks() {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.getNumberOfChunks",
"DEP_WEBPACK_MODULE_GET_NUMBER_OF_CHUNKS"
).getNumberOfModuleChunks(this);
}
get chunksIterable() {
return ChunkGraph.getChunkGraphForModule(
this,
"Module.chunksIterable",
"DEP_WEBPACK_MODULE_CHUNKS_ITERABLE"
).getOrderedModuleChunksIterable(this, compareChunksById);
}
/**
* @param {string} exportName a name of an export
* @returns {boolean | null} true, if the export is provided why the module.
* null, if it's unknown.
* false, if it's not provided.
*/
isProvided(exportName) {
return ModuleGraph.getModuleGraphForModule(
this,
"Module.usedExports",
"DEP_WEBPACK_MODULE_USED_EXPORTS"
).isExportProvided(this, exportName);
}
// BACKWARD-COMPAT END
/**
* @returns {string} name of the exports argument
*/
get exportsArgument() {
return (this.buildInfo && this.buildInfo.exportsArgument) || "exports";
}
/**
* @returns {string} name of the module argument
*/
get moduleArgument() {
return (this.buildInfo && this.buildInfo.moduleArgument) || "module";
}
/**
* @param {ModuleGraph} moduleGraph the module graph
* @param {boolean | undefined} strict the importing module is strict
* @returns {"namespace" | "default-only" | "default-with-named" | "dynamic"} export type
* "namespace": Exports is already a namespace object. namespace = exports.
* "dynamic": Check at runtime if __esModule is set. When set: namespace = { ...exports, default: exports }. When not set: namespace = { default: exports }.
* "default-only": Provide a namespace object with only default export. namespace = { default: exports }
* "default-with-named": Provide a namespace object with named and default export. namespace = { ...exports, default: exports }
*/
getExportsType(moduleGraph, strict) {
switch (this.buildMeta && this.buildMeta.exportsType) {
case "flagged":
return strict ? "default-with-named" : "namespace";
case "namespace":
return "namespace";
case "default":
switch (/** @type {BuildMeta} */ (this.buildMeta).defaultObject) {
case "redirect":
return "default-with-named";
case "redirect-warn":
return strict ? "default-only" : "default-with-named";
default:
return "default-only";
}
case "dynamic": {
if (strict) return "default-with-named";
// Try to figure out value of __esModule by following reexports
const handleDefault = () => {
switch (/** @type {BuildMeta} */ (this.buildMeta).defaultObject) {
case "redirect":
case "redirect-warn":
return "default-with-named";
default:
return "default-only";
}
};
const exportInfo = moduleGraph.getReadOnlyExportInfo(
this,
"__esModule"
);
if (exportInfo.provided === false) {
return handleDefault();
}
const target = exportInfo.getTarget(moduleGraph);
if (
!target ||
!target.export ||
target.export.length !== 1 ||
target.export[0] !== "__esModule"
) {
return "dynamic";
}
switch (
target.module.buildMeta &&
target.module.buildMeta.exportsType
) {
case "flagged":
case "namespace":
return "namespace";
case "default":
return handleDefault();
default:
return "dynamic";
}
}
default:
return strict ? "default-with-named" : "dynamic";
}
}
/**
* @param {Dependency} presentationalDependency dependency being tied to module.
* This is a Dependency without edge in the module graph. It's only for presentation.
* @returns {void}
*/
addPresentationalDependency(presentationalDependency) {
if (this.presentationalDependencies === undefined) {
this.presentationalDependencies = [];
}
this.presentationalDependencies.push(presentationalDependency);
}
/**
* @param {Dependency} codeGenerationDependency dependency being tied to module.
* This is a Dependency where the code generation result of the referenced module is needed during code generation.
* The Dependency should also be added to normal dependencies via addDependency.
* @returns {void}
*/
addCodeGenerationDependency(codeGenerationDependency) {
if (this.codeGenerationDependencies === undefined) {
this.codeGenerationDependencies = [];
}
this.codeGenerationDependencies.push(codeGenerationDependency);
}
/**
* Removes all dependencies and blocks
* @returns {void}
*/
clearDependenciesAndBlocks() {
if (this.presentationalDependencies !== undefined) {
this.presentationalDependencies.length = 0;
}
if (this.codeGenerationDependencies !== undefined) {
this.codeGenerationDependencies.length = 0;
}
super.clearDependenciesAndBlocks();
}
/**
* @param {WebpackError} warning the warning
* @returns {void}
*/
addWarning(warning) {
if (this._warnings === undefined) {
this._warnings = [];
}
this._warnings.push(warning);
}
/**
* @returns {Iterable | undefined} list of warnings if any
*/
getWarnings() {
return this._warnings;
}
/**
* @returns {number} number of warnings
*/
getNumberOfWarnings() {
return this._warnings !== undefined ? this._warnings.length : 0;
}
/**
* @param {WebpackError} error the error
* @returns {void}
*/
addError(error) {
if (this._errors === undefined) {
this._errors = [];
}
this._errors.push(error);
}
/**
* @returns {Iterable | undefined} list of errors if any
*/
getErrors() {
return this._errors;
}
/**
* @returns {number} number of errors
*/
getNumberOfErrors() {
return this._errors !== undefined ? this._errors.length : 0;
}
/**
* removes all warnings and errors
* @returns {void}
*/
clearWarningsAndErrors() {
if (this._warnings !== undefined) {
this._warnings.length = 0;
}
if (this._errors !== undefined) {
this._errors.length = 0;
}
}
/**
* @param {ModuleGraph} moduleGraph the module graph
* @returns {boolean} true, if the module is optional
*/
isOptional(moduleGraph) {
let hasConnections = false;
for (const r of moduleGraph.getIncomingConnections(this)) {
if (
!r.dependency ||
!r.dependency.optional ||
!r.isTargetActive(undefined)
) {
return false;
}
hasConnections = true;
}
return hasConnections;
}
/**
* @param {ChunkGraph} chunkGraph the chunk graph
* @param {Chunk} chunk a chunk
* @param {Chunk=} ignoreChunk chunk to be ignored
* @returns {boolean} true, if the module is accessible from "chunk" when ignoring "ignoreChunk"
*/
isAccessibleInChunk(chunkGraph, chunk, ignoreChunk) {
// Check if module is accessible in ALL chunk groups
for (const chunkGroup of chunk.groupsIterable) {
if (!this.isAccessibleInChunkGroup(chunkGraph, chunkGroup)) return false;
}
return true;
}
/**
* @param {ChunkGraph} chunkGraph the chunk graph
* @param {ChunkGroup} chunkGroup a chunk group
* @param {Chunk=} ignoreChunk chunk to be ignored
* @returns {boolean} true, if the module is accessible from "chunkGroup" when ignoring "ignoreChunk"
*/
isAccessibleInChunkGroup(chunkGraph, chunkGroup, ignoreChunk) {
const queue = new Set([chunkGroup]);
// Check if module is accessible from all items of the queue
queueFor: for (const cg of queue) {
// 1. If module is in one of the chunks of the group we can continue checking the next items
// because it's accessible.
for (const chunk of cg.chunks) {
if (chunk !== ignoreChunk && chunkGraph.isModuleInChunk(this, chunk))
continue queueFor;
}
// 2. If the chunk group is initial, we can break here because it's not accessible.
if (chunkGroup.isInitial()) return false;
// 3. Enqueue all parents because it must be accessible from ALL parents
for (const parent of chunkGroup.parentsIterable) queue.add(parent);
}
// When we processed through the whole list and we didn't bailout, the module is accessible
return true;
}
/**
* @param {Chunk} chunk a chunk
* @param {ModuleGraph} moduleGraph the module graph
* @param {ChunkGraph} chunkGraph the chunk graph
* @returns {boolean} true, if the module has any reason why "chunk" should be included
*/
hasReasonForChunk(chunk, moduleGraph, chunkGraph) {
// check for each reason if we need the chunk
for (const [
fromModule,
connections
] of moduleGraph.getIncomingConnectionsByOriginModule(this)) {
if (!connections.some(c => c.isTargetActive(chunk.runtime))) continue;
for (const originChunk of chunkGraph.getModuleChunksIterable(
/** @type {Module} */ (fromModule)
)) {
// return true if module this is not reachable from originChunk when ignoring chunk
if (!this.isAccessibleInChunk(chunkGraph, originChunk, chunk))
return true;
}
}
return false;
}
/**
* @param {ModuleGraph} moduleGraph the module graph
* @param {RuntimeSpec} runtime the runtime
* @returns {boolean} true if at least one other module depends on this module
*/
hasReasons(moduleGraph, runtime) {
for (const c of moduleGraph.getIncomingConnections(this)) {
if (c.isTargetActive(runtime)) return true;
}
return false;
}
/**
* @returns {string} for debugging
*/
toString() {
return `Module[${this.debugId}: ${this.identifier()}]`;
}
/**
* @param {NeedBuildContext} context context info
* @param {function((WebpackError | null)=, boolean=): void} callback callback function, returns true, if the module needs a rebuild
* @returns {void}
*/
needBuild(context, callback) {
callback(
null,
!this.buildMeta ||
this.needRebuild === Module.prototype.needRebuild ||
deprecatedNeedRebuild(this, context)
);
}
/**
* @deprecated Use needBuild instead
* @param {Map} fileTimestamps timestamps of files
* @param {Map} contextTimestamps timestamps of directories
* @returns {boolean} true, if the module needs a rebuild
*/
needRebuild(fileTimestamps, contextTimestamps) {
return true;
}
/**
* @param {Hash} hash the hash used to track dependencies
* @param {UpdateHashContext} context context
* @returns {void}
*/
updateHash(
hash,
context = {
chunkGraph: ChunkGraph.getChunkGraphForModule(
this,
"Module.updateHash",
"DEP_WEBPACK_MODULE_UPDATE_HASH"
),
runtime: undefined
}
) {
const { chunkGraph, runtime } = context;
hash.update(chunkGraph.getModuleGraphHash(this, runtime));
if (this.presentationalDependencies !== undefined) {
for (const dep of this.presentationalDependencies) {
dep.updateHash(hash, context);
}
}
super.updateHash(hash, context);
}
/**
* @returns {void}
*/
invalidateBuild() {
// should be overridden to support this feature
}
/* istanbul ignore next */
/**
* @abstract
* @returns {string} a unique identifier of the module
*/
identifier() {
const AbstractMethodError = require("./AbstractMethodError");
throw new AbstractMethodError();
}
/* istanbul ignore next */
/**
* @abstract
* @param {RequestShortener} requestShortener the request shortener
* @returns {string} a user readable identifier of the module
*/
readableIdentifier(requestShortener) {
const AbstractMethodError = require("./AbstractMethodError");
throw new AbstractMethodError();
}
/* istanbul ignore next */
/**
* @abstract
* @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 AbstractMethodError = require("./AbstractMethodError");
throw new AbstractMethodError();
}
/**
* @abstract
* @returns {SourceTypes} types available (do not mutate)
*/
getSourceTypes() {
// Better override this method to return the correct types
if (this.source === Module.prototype.source) {
return DEFAULT_TYPES_UNKNOWN;
} else {
return DEFAULT_TYPES_JS;
}
}
/**
* @abstract
* @deprecated Use codeGeneration() instead
* @param {DependencyTemplates} dependencyTemplates the dependency templates
* @param {RuntimeTemplate} runtimeTemplate the runtime template
* @param {string=} type the type of source that should be generated
* @returns {Source} generated source
*/
source(dependencyTemplates, runtimeTemplate, type = "javascript") {
if (this.codeGeneration === Module.prototype.codeGeneration) {
const AbstractMethodError = require("./AbstractMethodError");
throw new AbstractMethodError();
}
const chunkGraph = ChunkGraph.getChunkGraphForModule(
this,
"Module.source() is deprecated. Use Compilation.codeGenerationResults.getSource(module, runtime, type) instead",
"DEP_WEBPACK_MODULE_SOURCE"
);
/** @type {CodeGenerationContext} */
const codeGenContext = {
dependencyTemplates,
runtimeTemplate,
moduleGraph: chunkGraph.moduleGraph,
chunkGraph,
runtime: undefined,
codeGenerationResults: undefined
};
const sources = this.codeGeneration(codeGenContext).sources;
return type ? sources.get(type) : sources.get(first(this.getSourceTypes()));
}
/* istanbul ignore next */
/**
* @abstract
* @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) {
const AbstractMethodError = require("./AbstractMethodError");
throw new AbstractMethodError();
}
/**
* @param {LibIdentOptions} options options
* @returns {string | null} an identifier for library inclusion
*/
libIdent(options) {
return null;
}
/**
* @returns {string | null} absolute path which should be used for condition matching (usually the resource path)
*/
nameForCondition() {
return null;
}
/**
* @param {ConcatenationBailoutReasonContext} context context
* @returns {string | undefined} reason why this module can't be concatenated, undefined when it can be concatenated
*/
getConcatenationBailoutReason(context) {
return `Module Concatenation is not implemented for ${this.constructor.name}`;
}
/**
* @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 true;
}
/**
* @param {CodeGenerationContext} context context for code generation
* @returns {CodeGenerationResult} result
*/
codeGeneration(context) {
// Best override this method
const sources = new Map();
for (const type of this.getSourceTypes()) {
if (type !== "unknown") {
sources.set(
type,
this.source(
context.dependencyTemplates,
context.runtimeTemplate,
type
)
);
}
}
return {
sources,
runtimeRequirements: new Set([
RuntimeGlobals.module,
RuntimeGlobals.exports,
RuntimeGlobals.require
])
};
}
/**
* @param {Chunk} chunk the chunk which condition should be checked
* @param {Compilation} compilation the compilation
* @returns {boolean} true, if the chunk is ok for the module
*/
chunkCondition(chunk, compilation) {
return true;
}
hasChunkCondition() {
return this.chunkCondition !== Module.prototype.chunkCondition;
}
/**
* 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) {
this.type = module.type;
this.layer = module.layer;
this.context = module.context;
this.factoryMeta = module.factoryMeta;
this.resolveOptions = module.resolveOptions;
}
/**
* Module should be unsafe cached. Get data that's needed for that.
* This data will be passed to restoreFromUnsafeCache later.
* @returns {UnsafeCacheData} cached data
*/
getUnsafeCacheData() {
return {
factoryMeta: this.factoryMeta,
resolveOptions: this.resolveOptions
};
}
/**
* restore unsafe cache data
* @param {object} unsafeCacheData data from getUnsafeCacheData
* @param {NormalModuleFactory} normalModuleFactory the normal module factory handling the unsafe caching
*/
_restoreFromUnsafeCache(unsafeCacheData, normalModuleFactory) {
this.factoryMeta = unsafeCacheData.factoryMeta;
this.resolveOptions = unsafeCacheData.resolveOptions;
}
/**
* Assuming this module is in the cache. Remove internal references to allow freeing some memory.
*/
cleanupForCache() {
this.factoryMeta = undefined;
this.resolveOptions = undefined;
}
/**
* @returns {Source | null} the original source for the module before webpack transformation
*/
originalSource() {
return null;
}
/**
* @param {LazySet} fileDependencies set where file dependencies are added to
* @param {LazySet} contextDependencies set where context dependencies are added to
* @param {LazySet} missingDependencies set where missing dependencies are added to
* @param {LazySet} buildDependencies set where build dependencies are added to
*/
addCacheDependencies(
fileDependencies,
contextDependencies,
missingDependencies,
buildDependencies
) {}
/**
* @param {ObjectSerializerContext} context context
*/
serialize(context) {
const { write } = context;
write(this.type);
write(this.layer);
write(this.context);
write(this.resolveOptions);
write(this.factoryMeta);
write(this.useSourceMap);
write(this.useSimpleSourceMap);
write(
this._warnings !== undefined && this._warnings.length === 0
? undefined
: this._warnings
);
write(
this._errors !== undefined && this._errors.length === 0
? undefined
: this._errors
);
write(this.buildMeta);
write(this.buildInfo);
write(this.presentationalDependencies);
write(this.codeGenerationDependencies);
super.serialize(context);
}
/**
* @param {ObjectDeserializerContext} context context
*/
deserialize(context) {
const { read } = context;
this.type = read();
this.layer = read();
this.context = read();
this.resolveOptions = read();
this.factoryMeta = read();
this.useSourceMap = read();
this.useSimpleSourceMap = read();
this._warnings = read();
this._errors = read();
this.buildMeta = read();
this.buildInfo = read();
this.presentationalDependencies = read();
this.codeGenerationDependencies = read();
super.deserialize(context);
}
}
makeSerializable(Module, "webpack/lib/Module");
// TODO remove in webpack 6
Object.defineProperty(Module.prototype, "hasEqualsChunks", {
get() {
throw new Error(
"Module.hasEqualsChunks was renamed (use hasEqualChunks instead)"
);
}
});
// TODO remove in webpack 6
Object.defineProperty(Module.prototype, "isUsed", {
get() {
throw new Error(
"Module.isUsed was renamed (use getUsedName, isExportUsed or isModuleUsed instead)"
);
}
});
// TODO remove in webpack 6
Object.defineProperty(Module.prototype, "errors", {
get: util.deprecate(
/**
* @this {Module}
* @returns {WebpackError[]} array
*/
function () {
if (this._errors === undefined) {
this._errors = [];
}
return this._errors;
},
"Module.errors was removed (use getErrors instead)",
"DEP_WEBPACK_MODULE_ERRORS"
)
});
// TODO remove in webpack 6
Object.defineProperty(Module.prototype, "warnings", {
get: util.deprecate(
/**
* @this {Module}
* @returns {WebpackError[]} array
*/
function () {
if (this._warnings === undefined) {
this._warnings = [];
}
return this._warnings;
},
"Module.warnings was removed (use getWarnings instead)",
"DEP_WEBPACK_MODULE_WARNINGS"
)
});
// TODO remove in webpack 6
Object.defineProperty(Module.prototype, "used", {
get() {
throw new Error(
"Module.used was refactored (use ModuleGraph.getUsedExports instead)"
);
},
set(value) {
throw new Error(
"Module.used was refactored (use ModuleGraph.setUsedExports instead)"
);
}
});
module.exports = Module;