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Compilation.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const asyncLib = require("neo-async");
const {
HookMap,
SyncHook,
SyncBailHook,
SyncWaterfallHook,
AsyncSeriesHook,
AsyncSeriesBailHook
} = require("tapable");
const util = require("util");
const { CachedSource } = require("webpack-sources");
const { MultiItemCache } = require("./CacheFacade");
const Chunk = require("./Chunk");
const ChunkGraph = require("./ChunkGraph");
const ChunkGroup = require("./ChunkGroup");
const ChunkRenderError = require("./ChunkRenderError");
const ChunkTemplate = require("./ChunkTemplate");
const CodeGenerationError = require("./CodeGenerationError");
const CodeGenerationResults = require("./CodeGenerationResults");
const DependencyTemplates = require("./DependencyTemplates");
const Entrypoint = require("./Entrypoint");
const ErrorHelpers = require("./ErrorHelpers");
const FileSystemInfo = require("./FileSystemInfo");
const {
connectChunkGroupAndChunk,
connectChunkGroupParentAndChild
} = require("./GraphHelpers");
const { makeWebpackError } = require("./HookWebpackError");
const MainTemplate = require("./MainTemplate");
const Module = require("./Module");
const ModuleDependencyError = require("./ModuleDependencyError");
const ModuleDependencyWarning = require("./ModuleDependencyWarning");
const ModuleGraph = require("./ModuleGraph");
const ModuleNotFoundError = require("./ModuleNotFoundError");
const ModuleProfile = require("./ModuleProfile");
const ModuleRestoreError = require("./ModuleRestoreError");
const ModuleStoreError = require("./ModuleStoreError");
const ModuleTemplate = require("./ModuleTemplate");
const RuntimeGlobals = require("./RuntimeGlobals");
const RuntimeTemplate = require("./RuntimeTemplate");
const Stats = require("./Stats");
const WebpackError = require("./WebpackError");
const buildChunkGraph = require("./buildChunkGraph");
const BuildCycleError = require("./errors/BuildCycleError");
const { Logger, LogType } = require("./logging/Logger");
const StatsFactory = require("./stats/StatsFactory");
const StatsPrinter = require("./stats/StatsPrinter");
const AsyncQueue = require("./util/AsyncQueue");
const LazySet = require("./util/LazySet");
const { cachedCleverMerge } = require("./util/cleverMerge");
const {
compareLocations,
concatComparators,
compareSelect,
compareIds,
compareStringsNumeric,
compareModulesByIdentifier
} = require("./util/comparators");
const createHash = require("./util/createHash");
const {
arrayToSetDeprecation,
soonFrozenObjectDeprecation,
createFakeHook
} = require("./util/deprecation");
const { getRuntimeKey } = require("./util/runtime");
/** @template T @typedef {import("tapable").AsArray<T>} AsArray<T> */
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../declarations/WebpackOptions").EntryDescriptionNormalized} EntryDescription */
/** @typedef {import("../declarations/WebpackOptions").OutputNormalized} OutputOptions */
/** @typedef {import("./AsyncDependenciesBlock")} AsyncDependenciesBlock */
/** @typedef {import("./Cache")} Cache */
/** @typedef {import("./CacheFacade")} CacheFacade */
/** @typedef {import("./ChunkGroup").ChunkGroupOptions} ChunkGroupOptions */
/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./DependenciesBlock")} DependenciesBlock */
/** @typedef {import("./Dependency")} Dependency */
/** @typedef {import("./Dependency").DependencyLocation} DependencyLocation */
/** @typedef {import("./Dependency").ReferencedExport} ReferencedExport */
/** @typedef {import("./DependencyTemplate")} DependencyTemplate */
/** @typedef {import("./Module")} Module */
/** @typedef {import("./Module").CodeGenerationResult} CodeGenerationResult */
/** @typedef {import("./ModuleFactory")} ModuleFactory */
/** @typedef {import("./RuntimeModule")} RuntimeModule */
/** @typedef {import("./Template").RenderManifestEntry} RenderManifestEntry */
/** @typedef {import("./Template").RenderManifestOptions} RenderManifestOptions */
/** @typedef {import("./WebpackError")} WebpackError */
/** @typedef {import("./stats/StatsFactory")} StatsFactory */
/** @typedef {import("./stats/StatsPrinter")} StatsPrinter */
/** @typedef {import("./util/Hash")} Hash */
/** @template T @typedef {import("./util/deprecation").FakeHook<T>} FakeHook<T> */
/** @typedef {import("./util/runtime").RuntimeSpec} RuntimeSpec */
/**
* @callback Callback
* @param {WebpackError=} err
* @returns {void}
*/
/**
* @callback ModuleCallback
* @param {WebpackError=} err
* @param {Module=} result
* @returns {void}
*/
/**
* @callback DepBlockVarDependenciesCallback
* @param {Dependency} dependency
* @returns {any}
*/
/**
* @typedef {Object} Plugin
* @property {() => void} apply
*/
/** @typedef {new (...args: any[]) => Dependency} DepConstructor */
/** @typedef {Record<string, Source>} CompilationAssets */
/**
* @typedef {Object} AvailableModulesChunkGroupMapping
* @property {ChunkGroup} chunkGroup
* @property {Set<Module>} availableModules
* @property {boolean} needCopy
*/
/**
* @typedef {Object} DependenciesBlockLike
* @property {Dependency[]} dependencies
* @property {AsyncDependenciesBlock[]} blocks
*/
/**
* @typedef {Object} ChunkPathData
* @property {string|number} id
* @property {string=} name
* @property {string} hash
* @property {function(number): string=} hashWithLength
* @property {(Record<string, string>)=} contentHash
* @property {(Record<string, (length: number) => string>)=} contentHashWithLength
*/
/**
* @typedef {Object} ChunkHashContext
* @property {RuntimeTemplate} runtimeTemplate the runtime template
* @property {ModuleGraph} moduleGraph the module graph
* @property {ChunkGraph} chunkGraph the chunk graph
*/
/** @typedef {{ name: string } & Omit<EntryDescription, "import">} EntryOptions */
/**
* @typedef {Object} EntryData
* @property {Dependency[]} dependencies dependencies of the entrypoint that should be evaluated at startup
* @property {Dependency[]} includeDependencies dependencies of the entrypoint that should be included but not evaluated
* @property {EntryOptions} options options of the entrypoint
*/
/**
* @typedef {Object} LogEntry
* @property {string} type
* @property {any[]} args
* @property {number} time
* @property {string[]=} trace
*/
/**
* @typedef {Object} AssetInfo
* @property {boolean=} immutable true, if the asset can be long term cached forever (contains a hash)
* @property {string | string[]=} fullhash the value(s) of the full hash used for this asset
* @property {string | string[]=} chunkhash the value(s) of the chunk hash used for this asset
* @property {string | string[]=} modulehash the value(s) of the module hash used for this asset
* @property {string | string[]=} contenthash the value(s) of the content hash used for this asset
* @property {number=} size size in bytes, only set after asset has been emitted
* @property {boolean=} development true, when asset is only used for development and doesn't count towards user-facing assets
* @property {boolean=} hotModuleReplacement true, when asset ships data for updating an existing application (HMR)
* @property {Record<string, string | string[]>=} related object of pointers to other assets, keyed by type of relation (only points from parent to child)
*/
/**
* @typedef {Object} Asset
* @property {string} name the filename of the asset
* @property {Source} source source of the asset
* @property {AssetInfo} info info about the asset
*/
/**
* @typedef {Object} ModulePathData
* @property {string|number} id
* @property {string} hash
* @property {function(number): string=} hashWithLength
*/
/**
* @typedef {Object} PathData
* @property {ChunkGraph=} chunkGraph
* @property {string=} hash
* @property {function(number): string=} hashWithLength
* @property {(Chunk|ChunkPathData)=} chunk
* @property {(Module|ModulePathData)=} module
* @property {RuntimeSpec=} runtime
* @property {string=} filename
* @property {string=} basename
* @property {string=} query
* @property {string=} contentHashType
* @property {string=} contentHash
* @property {function(number): string=} contentHashWithLength
* @property {boolean=} noChunkHash
* @property {string=} url
*/
/** @type {AssetInfo} */
const EMPTY_ASSET_INFO = Object.freeze({});
const esmDependencyCategory = "esm";
// TODO webpack 6: remove
const deprecatedNormalModuleLoaderHook = util.deprecate(
compilation => {
return require("./NormalModule").getCompilationHooks(compilation).loader;
},
"Compilation.hooks.normalModuleLoader was moved to NormalModule.getCompilationHooks(compilation).loader",
"DEP_WEBPACK_COMPILATION_NORMAL_MODULE_LOADER_HOOK"
);
const byId = compareSelect(
/**
* @param {Chunk} c chunk
* @returns {number | string} id
*/ c => c.id,
compareIds
);
const byNameOrHash = concatComparators(
compareSelect(
/**
* @param {Compilation} c compilation
* @returns {string} name
*/
c => c.name,
compareIds
),
compareSelect(
/**
* @param {Compilation} c compilation
* @returns {string} hash
*/ c => c.fullHash,
compareIds
)
);
const byMessage = compareSelect(err => `${err.message}`, compareStringsNumeric);
const byModule = compareSelect(
err => (err.module && err.module.identifier()) || "",
compareStringsNumeric
);
const byLocation = compareSelect(err => err.loc, compareLocations);
const compareErrors = concatComparators(byModule, byLocation, byMessage);
/**
* @param {Source} a a source
* @param {Source} b another source
* @returns {boolean} true, when both sources are equal
*/
const isSourceEqual = (a, b) => {
if (a === b) return true;
// TODO webpack 5: check .buffer() instead, it's called anyway during emit
/** @type {Buffer|string} */
let aSource = a.source();
/** @type {Buffer|string} */
let bSource = b.source();
if (aSource === bSource) return true;
if (typeof aSource === "string" && typeof bSource === "string") return false;
if (!Buffer.isBuffer(aSource)) aSource = Buffer.from(aSource, "utf-8");
if (!Buffer.isBuffer(bSource)) bSource = Buffer.from(bSource, "utf-8");
return aSource.equals(bSource);
};
class Compilation {
/**
* Creates an instance of Compilation.
* @param {Compiler} compiler the compiler which created the compilation
*/
constructor(compiler) {
const getNormalModuleLoader = () => deprecatedNormalModuleLoaderHook(this);
/** @type {AsyncSeriesHook<[CompilationAssets]>} */
const processAssetsHook = new AsyncSeriesHook(["assets"]);
/** @type {SyncHook<[CompilationAssets]>} */
const afterProcessAssetsHook = new SyncHook(["assets"]);
/**
* @template T
* @param {string} name name of the hook
* @param {number} stage new stage
* @param {function(): AsArray<T>} getArgs get old hook function args
* @param {string=} code deprecation code (not deprecated when unset)
* @returns {FakeHook<Pick<AsyncSeriesHook<T>, "tap" | "tapAsync" | "tapPromise" | "name">>} fake hook which redirects
*/
const createProcessAssetsHook = (name, stage, getArgs, code) => {
const errorMessage = reason => `Can't automatically convert plugin using Compilation.hooks.${name} to Compilation.hooks.processAssets because ${reason}.
BREAKING CHANGE: Asset processing hooks in Compilation has been merged into a single Compilation.hooks.processAssets hook.`;
const getOptions = options => {
if (typeof options === "string") options = { name: options };
if (options.stage) {
throw new Error(errorMessage("it's using the 'stage' option"));
}
return { ...options, stage: stage };
};
return createFakeHook(
{
name,
/** @type {AsyncSeriesHook<T>["intercept"]} */
intercept(interceptor) {
throw new Error(errorMessage("it's using 'intercept'"));
},
/** @type {AsyncSeriesHook<T>["tap"]} */
tap: (options, fn) => {
processAssetsHook.tap(getOptions(options), () => fn(...getArgs()));
},
/** @type {AsyncSeriesHook<T>["tapAsync"]} */
tapAsync: (options, fn) => {
processAssetsHook.tapAsync(
getOptions(options),
(assets, callback) =>
/** @type {any} */ (fn)(...getArgs(), callback)
);
},
/** @type {AsyncSeriesHook<T>["tapPromise"]} */
tapPromise: (options, fn) => {
processAssetsHook.tapPromise(getOptions(options), () =>
fn(...getArgs())
);
}
},
`${name} is deprecated (use Compilation.hook.processAssets instead and use one of Compilation.PROCESS_ASSETS_STAGE_* as stage option)`,
code
);
};
this.hooks = Object.freeze({
/** @type {SyncHook<[Module]>} */
buildModule: new SyncHook(["module"]),
/** @type {SyncHook<[Module]>} */
rebuildModule: new SyncHook(["module"]),
/** @type {SyncHook<[Module, WebpackError]>} */
failedModule: new SyncHook(["module", "error"]),
/** @type {SyncHook<[Module]>} */
succeedModule: new SyncHook(["module"]),
/** @type {SyncHook<[Module]>} */
stillValidModule: new SyncHook(["module"]),
/** @type {SyncHook<[Dependency, EntryOptions]>} */
addEntry: new SyncHook(["entry", "options"]),
/** @type {SyncHook<[Dependency, EntryOptions, Error]>} */
failedEntry: new SyncHook(["entry", "options", "error"]),
/** @type {SyncHook<[Dependency, EntryOptions, Module]>} */
succeedEntry: new SyncHook(["entry", "options", "module"]),
/** @type {SyncWaterfallHook<[(string[] | ReferencedExport)[], Dependency, RuntimeSpec]>} */
dependencyReferencedExports: new SyncWaterfallHook([
"referencedExports",
"dependency",
"runtime"
]),
/** @type {AsyncSeriesHook<[Iterable<Module>]>} */
finishModules: new AsyncSeriesHook(["modules"]),
/** @type {AsyncSeriesHook<[Module]>} */
finishRebuildingModule: new AsyncSeriesHook(["module"]),
/** @type {SyncHook<[]>} */
unseal: new SyncHook([]),
/** @type {SyncHook<[]>} */
seal: new SyncHook([]),
/** @type {SyncHook<[]>} */
beforeChunks: new SyncHook([]),
/** @type {SyncHook<[Iterable<Chunk>]>} */
afterChunks: new SyncHook(["chunks"]),
/** @type {SyncBailHook<[Iterable<Module>]>} */
optimizeDependencies: new SyncBailHook(["modules"]),
/** @type {SyncHook<[Iterable<Module>]>} */
afterOptimizeDependencies: new SyncHook(["modules"]),
/** @type {SyncHook<[]>} */
optimize: new SyncHook([]),
/** @type {SyncBailHook<[Iterable<Module>]>} */
optimizeModules: new SyncBailHook(["modules"]),
/** @type {SyncHook<[Iterable<Module>]>} */
afterOptimizeModules: new SyncHook(["modules"]),
/** @type {SyncBailHook<[Iterable<Chunk>, ChunkGroup[]]>} */
optimizeChunks: new SyncBailHook(["chunks", "chunkGroups"]),
/** @type {SyncHook<[Iterable<Chunk>, ChunkGroup[]]>} */
afterOptimizeChunks: new SyncHook(["chunks", "chunkGroups"]),
/** @type {AsyncSeriesHook<[Iterable<Chunk>, Iterable<Module>]>} */
optimizeTree: new AsyncSeriesHook(["chunks", "modules"]),
/** @type {SyncHook<[Iterable<Chunk>, Iterable<Module>]>} */
afterOptimizeTree: new SyncHook(["chunks", "modules"]),
/** @type {AsyncSeriesBailHook<[Iterable<Chunk>, Iterable<Module>]>} */
optimizeChunkModules: new AsyncSeriesBailHook(["chunks", "modules"]),
/** @type {SyncHook<[Iterable<Chunk>, Iterable<Module>]>} */
afterOptimizeChunkModules: new SyncHook(["chunks", "modules"]),
/** @type {SyncBailHook<[], boolean>} */
shouldRecord: new SyncBailHook([]),
/** @type {SyncHook<[Chunk, Set<string>]>} */
additionalChunkRuntimeRequirements: new SyncHook([
"chunk",
"runtimeRequirements"
]),
/** @type {HookMap<SyncBailHook<[Chunk, Set<string>]>>} */
runtimeRequirementInChunk: new HookMap(
() => new SyncBailHook(["chunk", "runtimeRequirements"])
),
/** @type {SyncHook<[Module, Set<string>]>} */
additionalModuleRuntimeRequirements: new SyncHook([
"module",
"runtimeRequirements"
]),
/** @type {HookMap<SyncBailHook<[Module, Set<string>]>>} */
runtimeRequirementInModule: new HookMap(
() => new SyncBailHook(["module", "runtimeRequirements"])
),
/** @type {SyncHook<[Chunk, Set<string>]>} */
additionalTreeRuntimeRequirements: new SyncHook([
"chunk",
"runtimeRequirements"
]),
/** @type {HookMap<SyncBailHook<[Chunk, Set<string>]>>} */
runtimeRequirementInTree: new HookMap(
() => new SyncBailHook(["chunk", "runtimeRequirements"])
),
/** @type {SyncHook<[RuntimeModule, Chunk]>} */
runtimeModule: new SyncHook(["module", "chunk"]),
/** @type {SyncHook<[Iterable<Module>, any]>} */
reviveModules: new SyncHook(["modules", "records"]),
/** @type {SyncHook<[Iterable<Module>]>} */
beforeModuleIds: new SyncHook(["modules"]),
/** @type {SyncHook<[Iterable<Module>]>} */
moduleIds: new SyncHook(["modules"]),
/** @type {SyncHook<[Iterable<Module>]>} */
optimizeModuleIds: new SyncHook(["modules"]),
/** @type {SyncHook<[Iterable<Module>]>} */
afterOptimizeModuleIds: new SyncHook(["modules"]),
/** @type {SyncHook<[Iterable<Chunk>, any]>} */
reviveChunks: new SyncHook(["chunks", "records"]),
/** @type {SyncHook<[Iterable<Chunk>]>} */
beforeChunkIds: new SyncHook(["chunks"]),
/** @type {SyncHook<[Iterable<Chunk>]>} */
chunkIds: new SyncHook(["chunks"]),
/** @type {SyncHook<[Iterable<Chunk>]>} */
optimizeChunkIds: new SyncHook(["chunks"]),
/** @type {SyncHook<[Iterable<Chunk>]>} */
afterOptimizeChunkIds: new SyncHook(["chunks"]),
/** @type {SyncHook<[Iterable<Module>, any]>} */
recordModules: new SyncHook(["modules", "records"]),
/** @type {SyncHook<[Iterable<Chunk>, any]>} */
recordChunks: new SyncHook(["chunks", "records"]),
/** @type {SyncHook<[Iterable<Module>]>} */
optimizeCodeGeneration: new SyncHook(["modules"]),
/** @type {SyncHook<[]>} */
beforeModuleHash: new SyncHook([]),
/** @type {SyncHook<[]>} */
afterModuleHash: new SyncHook([]),
/** @type {SyncHook<[]>} */
beforeCodeGeneration: new SyncHook([]),
/** @type {SyncHook<[]>} */
afterCodeGeneration: new SyncHook([]),
/** @type {SyncHook<[]>} */
beforeRuntimeRequirements: new SyncHook([]),
/** @type {SyncHook<[]>} */
afterRuntimeRequirements: new SyncHook([]),
/** @type {SyncHook<[]>} */
beforeHash: new SyncHook([]),
/** @type {SyncHook<[Chunk]>} */
contentHash: new SyncHook(["chunk"]),
/** @type {SyncHook<[]>} */
afterHash: new SyncHook([]),
/** @type {SyncHook<[any]>} */
recordHash: new SyncHook(["records"]),
/** @type {SyncHook<[Compilation, any]>} */
record: new SyncHook(["compilation", "records"]),
/** @type {SyncHook<[]>} */
beforeModuleAssets: new SyncHook([]),
/** @type {SyncBailHook<[], boolean>} */
shouldGenerateChunkAssets: new SyncBailHook([]),
/** @type {SyncHook<[]>} */
beforeChunkAssets: new SyncHook([]),
// TODO webpack 6 remove
/** @deprecated */
additionalChunkAssets: createProcessAssetsHook(
"additionalChunkAssets",
Compilation.PROCESS_ASSETS_STAGE_ADDITIONAL,
() => [this.chunks],
"DEP_WEBPACK_COMPILATION_ADDITIONAL_CHUNK_ASSETS"
),
// TODO webpack 6 deprecate
/** @deprecated */
additionalAssets: createProcessAssetsHook(
"additionalAssets",
Compilation.PROCESS_ASSETS_STAGE_ADDITIONAL,
() => []
),
// TODO webpack 6 remove
/** @deprecated */
optimizeChunkAssets: createProcessAssetsHook(
"optimizeChunkAssets",
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE,
() => [this.chunks],
"DEP_WEBPACK_COMPILATION_OPTIMIZE_CHUNK_ASSETS"
),
// TODO webpack 6 remove
/** @deprecated */
afterOptimizeChunkAssets: createProcessAssetsHook(
"afterOptimizeChunkAssets",
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE + 1,
() => [this.chunks],
"DEP_WEBPACK_COMPILATION_AFTER_OPTIMIZE_CHUNK_ASSETS"
),
// TODO webpack 6 deprecate
/** @deprecated */
optimizeAssets: processAssetsHook,
// TODO webpack 6 deprecate
/** @deprecated */
afterOptimizeAssets: afterProcessAssetsHook,
processAssets: processAssetsHook,
afterProcessAssets: afterProcessAssetsHook,
/** @type {SyncBailHook<[], boolean>} */
needAdditionalSeal: new SyncBailHook([]),
/** @type {AsyncSeriesHook<[]>} */
afterSeal: new AsyncSeriesHook([]),
/** @type {SyncWaterfallHook<[RenderManifestEntry[], RenderManifestOptions]>} */
renderManifest: new SyncWaterfallHook(["result", "options"]),
/** @type {SyncHook<[Hash]>} */
fullHash: new SyncHook(["hash"]),
/** @type {SyncHook<[Chunk, Hash, ChunkHashContext]>} */
chunkHash: new SyncHook(["chunk", "chunkHash", "ChunkHashContext"]),
/** @type {SyncHook<[Module, string]>} */
moduleAsset: new SyncHook(["module", "filename"]),
/** @type {SyncHook<[Chunk, string]>} */
chunkAsset: new SyncHook(["chunk", "filename"]),
/** @type {SyncWaterfallHook<[string, object, AssetInfo]>} */
assetPath: new SyncWaterfallHook(["path", "options", "assetInfo"]),
/** @type {SyncBailHook<[], boolean>} */
needAdditionalPass: new SyncBailHook([]),
/** @type {SyncHook<[Compiler, string, number]>} */
childCompiler: new SyncHook([
"childCompiler",
"compilerName",
"compilerIndex"
]),
/** @type {SyncBailHook<[string, LogEntry], true>} */
log: new SyncBailHook(["origin", "logEntry"]),
/** @type {HookMap<SyncHook<[Object, Object]>>} */
statsPreset: new HookMap(() => new SyncHook(["options", "context"])),
/** @type {SyncHook<[Object, Object]>} */
statsNormalize: new SyncHook(["options", "context"]),
/** @type {SyncHook<[StatsFactory, Object]>} */
statsFactory: new SyncHook(["statsFactory", "options"]),
/** @type {SyncHook<[StatsPrinter, Object]>} */
statsPrinter: new SyncHook(["statsPrinter", "options"]),
get normalModuleLoader() {
return getNormalModuleLoader();
}
});
/** @type {string=} */
this.name = undefined;
/** @type {Compiler} */
this.compiler = compiler;
this.resolverFactory = compiler.resolverFactory;
this.inputFileSystem = compiler.inputFileSystem;
this.fileSystemInfo = new FileSystemInfo(this.inputFileSystem, {
managedPaths: compiler.managedPaths,
immutablePaths: compiler.immutablePaths,
logger: this.getLogger("webpack.FileSystemInfo")
});
if (compiler.fileTimestamps) {
this.fileSystemInfo.addFileTimestamps(compiler.fileTimestamps);
}
if (compiler.contextTimestamps) {
this.fileSystemInfo.addContextTimestamps(compiler.contextTimestamps);
}
this.requestShortener = compiler.requestShortener;
this.compilerPath = compiler.compilerPath;
this.logger = this.getLogger("webpack.Compilation");
const options = compiler.options;
this.options = options;
this.outputOptions = options && options.output;
/** @type {boolean} */
this.bail = (options && options.bail) || false;
/** @type {boolean} */
this.profile = (options && options.profile) || false;
this.mainTemplate = new MainTemplate(this.outputOptions, this);
this.chunkTemplate = new ChunkTemplate(this.outputOptions, this);
this.runtimeTemplate = new RuntimeTemplate(
this.outputOptions,
this.requestShortener
);
/** @type {{javascript: ModuleTemplate}} */
this.moduleTemplates = {
javascript: new ModuleTemplate(this.runtimeTemplate, this)
};
Object.defineProperties(this.moduleTemplates, {
asset: {
enumerable: false,
configurable: false,
get() {
throw new WebpackError(
"Compilation.moduleTemplates.asset has been removed"
);
}
},
webassembly: {
enumerable: false,
configurable: false,
get() {
throw new WebpackError(
"Compilation.moduleTemplates.webassembly has been removed"
);
}
}
});
this.moduleGraph = new ModuleGraph();
this.chunkGraph = undefined;
/** @type {CodeGenerationResults} */
this.codeGenerationResults = undefined;
/** @type {AsyncQueue<FactorizeModuleOptions, string, Module>} */
this.factorizeQueue = new AsyncQueue({
name: "factorize",
parallelism: options.parallelism || 100,
processor: this._factorizeModule.bind(this)
});
/** @type {AsyncQueue<Module, string, Module>} */
this.addModuleQueue = new AsyncQueue({
name: "addModule",
parallelism: options.parallelism || 100,
getKey: module => module.identifier(),
processor: this._addModule.bind(this)
});
/** @type {AsyncQueue<Module, Module, Module>} */
this.buildQueue = new AsyncQueue({
name: "build",
parallelism: options.parallelism || 100,
processor: this._buildModule.bind(this)
});
/** @type {AsyncQueue<Module, Module, Module>} */
this.rebuildQueue = new AsyncQueue({
name: "rebuild",
parallelism: options.parallelism || 100,
processor: this._rebuildModule.bind(this)
});
/** @type {AsyncQueue<Module, Module, Module>} */
this.processDependenciesQueue = new AsyncQueue({
name: "processDependencies",
parallelism: options.parallelism || 100,
processor: this._processModuleDependencies.bind(this)
});
/**
* Modules in value are building during the build of Module in key.
* Means value blocking key from finishing.
* Needed to detect build cycles.
* @type {WeakMap<Module, Set<Module>>}
*/
this.creatingModuleDuringBuild = new WeakMap();
/** @type {Map<string, EntryData>} */
this.entries = new Map();
/** @type {EntryData} */
this.globalEntry = {
dependencies: [],
includeDependencies: [],
options: {
name: undefined
}
};
/** @type {Map<string, Entrypoint>} */
this.entrypoints = new Map();
/** @type {Set<Chunk>} */
this.chunks = new Set();
arrayToSetDeprecation(this.chunks, "Compilation.chunks");
/** @type {ChunkGroup[]} */
this.chunkGroups = [];
/** @type {Map<string, ChunkGroup>} */
this.namedChunkGroups = new Map();
/** @type {Map<string, Chunk>} */
this.namedChunks = new Map();
/** @type {Set<Module>} */
this.modules = new Set();
arrayToSetDeprecation(this.modules, "Compilation.modules");
/** @private @type {Map<string, Module>} */
this._modules = new Map();
this.records = null;
/** @type {string[]} */
this.additionalChunkAssets = [];
/** @type {CompilationAssets} */
this.assets = {};
/** @type {Map<string, AssetInfo>} */
this.assetsInfo = new Map();
/** @type {Map<string, Map<string, Set<string>>>} */
this._assetsRelatedIn = new Map();
/** @type {WebpackError[]} */
this.errors = [];
/** @type {WebpackError[]} */
this.warnings = [];
/** @type {Compilation[]} */
this.children = [];
/** @type {Map<string, LogEntry[]>} */
this.logging = new Map();
/** @type {Map<DepConstructor, ModuleFactory>} */
this.dependencyFactories = new Map();
/** @type {DependencyTemplates} */
this.dependencyTemplates = new DependencyTemplates();
this.childrenCounters = {};
/** @type {Set<number|string>} */
this.usedChunkIds = null;
/** @type {Set<number>} */
this.usedModuleIds = null;
/** @type {boolean} */
this.needAdditionalPass = false;
/** @type {WeakSet<Module>} */
this.builtModules = new WeakSet();
/** @private @type {Map<Module, Callback[]>} */
this._rebuildingModules = new Map();
/** @type {Set<string>} */
this.emittedAssets = new Set();
/** @type {Set<string>} */
this.comparedForEmitAssets = new Set();
/** @type {LazySet<string>} */
this.fileDependencies = new LazySet();
/** @type {LazySet<string>} */
this.contextDependencies = new LazySet();
/** @type {LazySet<string>} */
this.missingDependencies = new LazySet();
/** @type {LazySet<string>} */
this.buildDependencies = new LazySet();
// TODO webpack 6 remove
this.compilationDependencies = {
add: util.deprecate(
item => this.fileDependencies.add(item),
"Compilation.compilationDependencies is deprecated (used Compilation.fileDependencies instead)",
"DEP_WEBPACK_COMPILATION_COMPILATION_DEPENDENCIES"
)
};
this._modulesCache = this.getCache("Compilation/modules");
this._assetsCache = this.getCache("Compilation/assets");
this._codeGenerationCache = this.getCache("Compilation/codeGeneration");
}
getStats() {
return new Stats(this);
}
createStatsOptions(optionsOrPreset, context = {}) {
if (
typeof optionsOrPreset === "boolean" ||
typeof optionsOrPreset === "string"
) {
optionsOrPreset = { preset: optionsOrPreset };
}
if (typeof optionsOrPreset === "object" && optionsOrPreset !== null) {
// We use this method of shallow cloning this object to include
// properties in the prototype chain
const options = {};
for (const key in optionsOrPreset) {
options[key] = optionsOrPreset[key];
}
if (options.preset !== undefined) {
this.hooks.statsPreset.for(options.preset).call(options, context);
}
this.hooks.statsNormalize.call(options, context);
return options;
} else {
const options = {};
this.hooks.statsNormalize.call(options, context);
return options;
}
}
createStatsFactory(options) {
const statsFactory = new StatsFactory();
this.hooks.statsFactory.call(statsFactory, options);
return statsFactory;
}
createStatsPrinter(options) {
const statsPrinter = new StatsPrinter();
this.hooks.statsPrinter.call(statsPrinter, options);
return statsPrinter;
}
/**
* @param {string} name cache name
* @returns {CacheFacade} the cache facade instance
*/
getCache(name) {
return this.compiler.getCache(name);
}
/**
* @param {string | (function(): string)} name name of the logger, or function called once to get the logger name
* @returns {Logger} a logger with that name
*/
getLogger(name) {
if (!name) {
throw new TypeError("Compilation.getLogger(name) called without a name");
}
/** @type {LogEntry[] | undefined} */
let logEntries;
return new Logger(
(type, args) => {
if (typeof name === "function") {
name = name();
if (!name) {
throw new TypeError(
"Compilation.getLogger(name) called with a function not returning a name"
);
}
}
let trace;
switch (type) {
case LogType.warn:
case LogType.error:
case LogType.trace:
trace = ErrorHelpers.cutOffLoaderExecution(new Error("Trace").stack)
.split("\n")
.slice(3);
break;
}
/** @type {LogEntry} */
const logEntry = {
time: Date.now(),
type,
args,
trace
};
if (this.hooks.log.call(name, logEntry) === undefined) {
if (logEntry.type === LogType.profileEnd) {
// eslint-disable-next-line node/no-unsupported-features/node-builtins
if (typeof console.profileEnd === "function") {
// eslint-disable-next-line node/no-unsupported-features/node-builtins
console.profileEnd(`[${name}] ${logEntry.args[0]}`);
}
}
if (logEntries === undefined) {
logEntries = this.logging.get(name);
if (logEntries === undefined) {
logEntries = [];
this.logging.set(name, logEntries);
}
}
logEntries.push(logEntry);
if (logEntry.type === LogType.profile) {
// eslint-disable-next-line node/no-unsupported-features/node-builtins
if (typeof console.profile === "function") {
// eslint-disable-next-line node/no-unsupported-features/node-builtins
console.profile(`[${name}] ${logEntry.args[0]}`);
}
}
}
},
childName => {
if (typeof name === "function") {
if (typeof childName === "function") {
return this.getLogger(() => {
if (typeof name === "function") {
name = name();
if (!name) {
throw new TypeError(
"Compilation.getLogger(name) called with a function not returning a name"
);
}
}
if (typeof childName === "function") {
childName = childName();
if (!childName) {
throw new TypeError(
"Logger.getChildLogger(name) called with a function not returning a name"
);
}
}
return `${name}/${childName}`;
});
} else {
return this.getLogger(() => {
if (typeof name === "function") {
name = name();
if (!name) {
throw new TypeError(
"Compilation.getLogger(name) called with a function not returning a name"
);
}
}
return `${name}/${childName}`;
});
}
} else {
if (typeof childName === "function") {
return this.getLogger(() => {
if (typeof childName === "function") {
childName = childName();
if (!childName) {
throw new TypeError(
"Logger.getChildLogger(name) called with a function not returning a name"
);
}
}
return `${name}/${childName}`;
});
} else {
return this.getLogger(`${name}/${childName}`);
}
}
}
);
}
/**
* @param {Module} module module to be added that was created
* @param {ModuleCallback} callback returns the module in the compilation,
* it could be the passed one (if new), or an already existing in the compilation
* @returns {void}
*/
addModule(module, callback) {
this.addModuleQueue.add(module, callback);
}
/**
* @param {Module} module module to be added that was created
* @param {ModuleCallback} callback returns the module in the compilation,
* it could be the passed one (if new), or an already existing in the compilation
* @returns {void}
*/
_addModule(module, callback) {
const identifier = module.identifier();
const alreadyAddedModule = this._modules.get(identifier);
if (alreadyAddedModule) {
return callback(null, alreadyAddedModule);
}
const currentProfile = this.profile
? this.moduleGraph.getProfile(module)
: undefined;
if (currentProfile !== undefined) {
currentProfile.markRestoringStart();
}
this._modulesCache.get(identifier, null, (err, cacheModule) => {
if (err) return callback(new ModuleRestoreError(module, err));
if (currentProfile !== undefined) {
currentProfile.markRestoringEnd();
currentProfile.markIntegrationStart();
}
if (cacheModule) {
cacheModule.updateCacheModule(module);
module = cacheModule;
}
this._modules.set(identifier, module);