MAINHACK

Viewing / Editing File: Compilation.js

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

/** @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("../declarations/WebpackOptions").StatsOptions} StatsOptions */
/** @typedef {import("../declarations/WebpackOptions").WebpackPluginFunction} WebpackPluginFunction */
/** @typedef {import("../declarations/WebpackOptions").WebpackPluginInstance} WebpackPluginInstance */
/** @typedef {import("./AsyncDependenciesBlock")} AsyncDependenciesBlock */
/** @typedef {import("./Cache")} Cache */
/** @typedef {import("./CacheFacade")} CacheFacade */
/** @typedef {import("./ChunkGroup").ChunkGroupOptions} ChunkGroupOptions */
/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./Compiler").CompilationParams} CompilationParams */
/** @typedef {import("./DependenciesBlock")} DependenciesBlock */
/** @typedef {import("./Dependency").DependencyLocation} DependencyLocation */
/** @typedef {import("./Dependency").ReferencedExport} ReferencedExport */
/** @typedef {import("./DependencyTemplate")} DependencyTemplate */
/** @typedef {import("./Entrypoint").EntryOptions} EntryOptions */
/** @typedef {import("./Module").CodeGenerationResult} CodeGenerationResult */
/** @typedef {import("./ModuleFactory")} ModuleFactory */
/** @typedef {import("./ModuleFactory").ModuleFactoryCreateDataContextInfo} ModuleFactoryCreateDataContextInfo */
/** @typedef {import("./ModuleFactory").ModuleFactoryResult} ModuleFactoryResult */
/** @typedef {import("./RequestShortener")} RequestShortener */
/** @typedef {import("./RuntimeModule")} RuntimeModule */
/** @typedef {import("./Template").RenderManifestEntry} RenderManifestEntry */
/** @typedef {import("./Template").RenderManifestOptions} RenderManifestOptions */
/** @typedef {import("./stats/DefaultStatsFactoryPlugin").StatsAsset} StatsAsset */
/** @typedef {import("./stats/DefaultStatsFactoryPlugin").StatsError} StatsError */
/** @typedef {import("./stats/DefaultStatsFactoryPlugin").StatsModule} StatsModule */
/** @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 | null)=} err
 * @returns {void}
 */

/**
 * @callback ModuleCallback
 * @param {(WebpackError | null)=} err
 * @param {Module=} result
 * @returns {void}
 */

/**
 * @callback ModuleFactoryResultCallback
 * @param {(WebpackError | null)=} err
 * @param {ModuleFactoryResult=} result
 * @returns {void}
 */

/**
 * @callback ModuleOrFactoryResultCallback
 * @param {(WebpackError | null)=} err
 * @param {Module | ModuleFactoryResult=} result
 * @returns {void}
 */

/**
 * @callback ExecuteModuleCallback
 * @param {(WebpackError | null)=} err
 * @param {ExecuteModuleResult=} result
 * @returns {void}
 */

/**
 * @callback DepBlockVarDependenciesCallback
 * @param {Dependency} dependency
 * @returns {any}
 */

/** @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 {Object} RuntimeRequirementsContext
 * @property {ChunkGraph} chunkGraph the chunk graph
 * @property {CodeGenerationResults} codeGenerationResults the code generation results
 */

/**
 * @typedef {Object} ExecuteModuleOptions
 * @property {EntryOptions=} entryOptions
 */

/**
 * @typedef {Object} ExecuteModuleResult
 * @property {any} exports
 * @property {boolean} cacheable
 * @property {Map<string, { source: Source, info: AssetInfo }>} assets
 * @property {LazySet<string>} fileDependencies
 * @property {LazySet<string>} contextDependencies
 * @property {LazySet<string>} missingDependencies
 * @property {LazySet<string>} buildDependencies
 */

/**
 * @typedef {Object} ExecuteModuleArgument
 * @property {Module} module
 * @property {{ id: string, exports: any, loaded: boolean }=} moduleObject
 * @property {any} preparedInfo
 * @property {CodeGenerationResult} codeGenerationResult
 */

/**
 * @typedef {Object} ExecuteModuleContext
 * @property {Map<string, { source: Source, info: AssetInfo }>} assets
 * @property {Chunk} chunk
 * @property {ChunkGraph} chunkGraph
 * @property {function(string): any=} __webpack_require__
 */

/**
 * @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} KnownAssetInfo
 * @property {boolean=} immutable true, if the asset can be long term cached forever (contains a hash)
 * @property {boolean=} minimized whether the asset is minimized
 * @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 {string=} sourceFilename when asset was created from a source file (potentially transformed), the original filename relative to compilation context
 * @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 {boolean=} javascriptModule true, when asset is javascript and an ESM
 * @property {Record<string, string | string[]>=} related object of pointers to other assets, keyed by type of relation (only points from parent to child)
 */

/** @typedef {KnownAssetInfo & Record<string, any>} AssetInfo */

/**
 * @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
 */

/**
 * @typedef {Object} KnownNormalizedStatsOptions
 * @property {string} context
 * @property {RequestShortener} requestShortener
 * @property {string} chunksSort
 * @property {string} modulesSort
 * @property {string} chunkModulesSort
 * @property {string} nestedModulesSort
 * @property {string} assetsSort
 * @property {boolean} ids
 * @property {boolean} cachedAssets
 * @property {boolean} groupAssetsByEmitStatus
 * @property {boolean} groupAssetsByPath
 * @property {boolean} groupAssetsByExtension
 * @property {number} assetsSpace
 * @property {((value: string, asset: StatsAsset) => boolean)[]} excludeAssets
 * @property {((name: string, module: StatsModule, type: "module" | "chunk" | "root-of-chunk" | "nested") => boolean)[]} excludeModules
 * @property {((warning: StatsError, textValue: string) => boolean)[]} warningsFilter
 * @property {boolean} cachedModules
 * @property {boolean} orphanModules
 * @property {boolean} dependentModules
 * @property {boolean} runtimeModules
 * @property {boolean} groupModulesByCacheStatus
 * @property {boolean} groupModulesByLayer
 * @property {boolean} groupModulesByAttributes
 * @property {boolean} groupModulesByPath
 * @property {boolean} groupModulesByExtension
 * @property {boolean} groupModulesByType
 * @property {boolean | "auto"} entrypoints
 * @property {boolean} chunkGroups
 * @property {boolean} chunkGroupAuxiliary
 * @property {boolean} chunkGroupChildren
 * @property {number} chunkGroupMaxAssets
 * @property {number} modulesSpace
 * @property {number} chunkModulesSpace
 * @property {number} nestedModulesSpace
 * @property {false|"none"|"error"|"warn"|"info"|"log"|"verbose"} logging
 * @property {((value: string) => boolean)[]} loggingDebug
 * @property {boolean} loggingTrace
 * @property {any} _env
 */

/** @typedef {KnownNormalizedStatsOptions & Omit<StatsOptions, keyof KnownNormalizedStatsOptions> & Record<string, any>} NormalizedStatsOptions */

/**
 * @typedef {Object} KnownCreateStatsOptionsContext
 * @property {boolean=} forToString
 */

/** @typedef {KnownCreateStatsOptionsContext & Record<string, any>} CreateStatsOptionsContext */

/** @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"
);

// TODO webpack 6: remove
const defineRemovedModuleTemplates = moduleTemplates => {
	Object.defineProperties(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"
				);
			}
		}
	});
	moduleTemplates = undefined;
};

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);

/** @type {WeakMap<Dependency, Module & { restoreFromUnsafeCache: Function } | null>} */
const unsafeCacheDependencies = new WeakMap();

/** @type {WeakMap<Module & { restoreFromUnsafeCache: Function }, object>} */
const unsafeCacheData = new WeakMap();

class Compilation {
	/**
	 * Creates an instance of Compilation.
	 * @param {Compiler} compiler the compiler which created the compilation
	 * @param {CompilationParams} params the compilation parameters
	 */
	constructor(compiler, params) {
		this._backCompat = compiler._backCompat;

const getNormalModuleLoader = () => deprecatedNormalModuleLoaderHook(this);
		/** @typedef {{ additionalAssets?: true | Function }} ProcessAssetsAdditionalOptions */
		/** @type {AsyncSeriesHook<[CompilationAssets], ProcessAssetsAdditionalOptions>} */
		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) => {
			if (!this._backCompat && code) return undefined;
			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.hooks.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 {SyncHook<[ExecuteModuleArgument, ExecuteModuleContext]>} */
			executeModule: new SyncHook(["options", "context"]),
			/** @type {AsyncParallelHook<[ExecuteModuleArgument, ExecuteModuleContext]>} */
			prepareModuleExecution: new AsyncParallelHook(["options", "context"]),

/** @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>, RuntimeRequirementsContext]>} */
			additionalChunkRuntimeRequirements: new SyncHook([
				"chunk",
				"runtimeRequirements",
				"context"
			]),
			/** @type {HookMap<SyncBailHook<[Chunk, Set<string>, RuntimeRequirementsContext]>>} */
			runtimeRequirementInChunk: new HookMap(
				() => new SyncBailHook(["chunk", "runtimeRequirements", "context"])
			),
			/** @type {SyncHook<[Module, Set<string>, RuntimeRequirementsContext]>} */
			additionalModuleRuntimeRequirements: new SyncHook([
				"module",
				"runtimeRequirements",
				"context"
			]),
			/** @type {HookMap<SyncBailHook<[Module, Set<string>, RuntimeRequirementsContext]>>} */
			runtimeRequirementInModule: new HookMap(
				() => new SyncBailHook(["module", "runtimeRequirements", "context"])
			),
			/** @type {SyncHook<[Chunk, Set<string>, RuntimeRequirementsContext]>} */
			additionalTreeRuntimeRequirements: new SyncHook([
				"chunk",
				"runtimeRequirements",
				"context"
			]),
			/** @type {HookMap<SyncBailHook<[Chunk, Set<string>, RuntimeRequirementsContext]>>} */
			runtimeRequirementInTree: new HookMap(
				() => new SyncBailHook(["chunk", "runtimeRequirements", "context"])
			),

/** @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 {AsyncSeriesHook<[CompilationAssets]>} */
			processAdditionalAssets: new AsyncSeriesHook(["assets"]),

/** @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 {SyncWaterfallHook<[WebpackError[]]>} */
			processWarnings: new SyncWaterfallHook(["warnings"]),
			/** @type {SyncWaterfallHook<[WebpackError[]]>} */
			processErrors: new SyncWaterfallHook(["errors"]),

/** @type {HookMap<SyncHook<[Partial<NormalizedStatsOptions>, CreateStatsOptionsContext]>>} */
			statsPreset: new HookMap(() => new SyncHook(["options", "context"])),
			/** @type {SyncHook<[Partial<NormalizedStatsOptions>, CreateStatsOptionsContext]>} */
			statsNormalize: new SyncHook(["options", "context"]),
			/** @type {SyncHook<[StatsFactory, NormalizedStatsOptions]>} */
			statsFactory: new SyncHook(["statsFactory", "options"]),
			/** @type {SyncHook<[StatsPrinter, NormalizedStatsOptions]>} */
			statsPrinter: new SyncHook(["statsPrinter", "options"]),

get normalModuleLoader() {
				return getNormalModuleLoader();
			}
		});
		/** @type {string=} */
		this.name = undefined;
		this.startTime = undefined;
		this.endTime = 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"),
			hashFunction: compiler.options.output.hashFunction
		});
		if (compiler.fileTimestamps) {
			this.fileSystemInfo.addFileTimestamps(compiler.fileTimestamps, true);
		}
		if (compiler.contextTimestamps) {
			this.fileSystemInfo.addContextTimestamps(
				compiler.contextTimestamps,
				true
			);
		}
		/** @type {Map<string, string | Set<string>>} */
		this.valueCacheVersions = new Map();
		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.params = params;
		this.mainTemplate = new MainTemplate(this.outputOptions, this);
		this.chunkTemplate = new ChunkTemplate(this.outputOptions, this);
		this.runtimeTemplate = new RuntimeTemplate(
			this,
			this.outputOptions,
			this.requestShortener
		);
		/** @type {{javascript: ModuleTemplate}} */
		this.moduleTemplates = {
			javascript: new ModuleTemplate(this.runtimeTemplate, this)
		};
		defineRemovedModuleTemplates(this.moduleTemplates);

/** @type {Map<Module, WeakTupleMap<any, any>> | undefined} */
		this.moduleMemCaches = undefined;
		/** @type {Map<Module, WeakTupleMap<any, any>> | undefined} */
		this.moduleMemCaches2 = undefined;
		this.moduleGraph = new ModuleGraph();
		/** @type {ChunkGraph} */
		this.chunkGraph = undefined;
		/** @type {CodeGenerationResults} */
		this.codeGenerationResults = undefined;

/** @type {AsyncQueue<Module, Module, Module>} */
		this.processDependenciesQueue = new AsyncQueue({
			name: "processDependencies",
			parallelism: options.parallelism || 100,
			processor: this._processModuleDependencies.bind(this)
		});
		/** @type {AsyncQueue<Module, string, Module>} */
		this.addModuleQueue = new AsyncQueue({
			name: "addModule",
			parent: this.processDependenciesQueue,
			getKey: module => module.identifier(),
			processor: this._addModule.bind(this)
		});
		/** @type {AsyncQueue<FactorizeModuleOptions, string, Module | ModuleFactoryResult>} */
		this.factorizeQueue = new AsyncQueue({
			name: "factorize",
			parent: this.addModuleQueue,
			processor: this._factorizeModule.bind(this)
		});
		/** @type {AsyncQueue<Module, Module, Module>} */
		this.buildQueue = new AsyncQueue({
			name: "build",
			parent: this.factorizeQueue,
			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)
		});

/**
		 * 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 {Entrypoint[]} */
		this.asyncEntrypoints = [];
		/** @type {Set<Chunk>} */
		this.chunks = new Set();
		/** @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();
		if (this._backCompat) {
			arrayToSetDeprecation(this.chunks, "Compilation.chunks");
			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.outputOptions.hashFunction
		);
		this.childrenCounters = {};
		/** @type {Set<number|string>} */
		this.usedChunkIds = null;
		/** @type {Set<number>} */
		this.usedModuleIds = null;
		/** @type {boolean} */
		this.needAdditionalPass = false;
		/** @type {Set<Module & { restoreFromUnsafeCache: Function }>} */
		this._restoredUnsafeCacheModuleEntries = new Set();
		/** @type {Map<string, Module & { restoreFromUnsafeCache: Function }>} */
		this._restoredUnsafeCacheEntries = new Map();
		/** @type {WeakSet<Module>} */
		this.builtModules = new WeakSet();
		/** @type {WeakSet<Module>} */
		this.codeGeneratedModules = new WeakSet();
		/** @type {WeakSet<Module>} */
		this.buildTimeExecutedModules = 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");

const unsafeCache = options.module.unsafeCache;
		this._unsafeCache = !!unsafeCache;
		this._unsafeCachePredicate =
			typeof unsafeCache === "function" ? unsafeCache : () => true;
	}

getStats() {
		return new Stats(this);
	}

/**
	 * @param {StatsOptions | string} optionsOrPreset stats option value
	 * @param {CreateStatsOptionsContext} context context
	 * @returns {NormalizedStatsOptions} normalized options
	 */
	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
			/** @type {Partial<NormalizedStatsOptions>} */
			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 /** @type {NormalizedStatsOptions} */ (options);
		} else {
			/** @type {Partial<NormalizedStatsOptions>} */
			const options = {};
			this.hooks.statsNormalize.call(options, context);
			return /** @type {NormalizedStatsOptions} */ (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);
			this.modules.add(module);
			if (this._backCompat)
				ModuleGraph.setModuleGraphForModule(module, this.moduleGraph);
			if (currentProfile !== undefined) {
				currentProfile.markIntegrationEnd();
			}
			callback(null, module);
		});
	}

/**
	 * Fetches a module from a compilation by its identifier
	 * @param {Module} module the module provided
	 * @returns {Module} the module requested
	 */
	getModule(module) {
		const identifier = module.identifier();
		return this._modules.get(identifier);
	}

/**
	 * Attempts to search for a module by its identifier
	 * @param {string} identifier identifier (usually path) for module
	 * @returns {Module|undefined} attempt to search for module and return it, else undefined
	 */
	findModule(identifier) {
		return this._modules.get(identifier);
	}

/**
	 * Schedules a build of the module object
	 *
	 * @param {Module} module module to be built
	 * @param {ModuleCallback} callback the callback
	 * @returns {void}
	 */
	buildModule(module, callback) {
		this.buildQueue.add(module, callback);
	}

/**
	 * Builds the module object
	 *
	 * @param {Module} module module to be built
	 * @param {ModuleCallback} callback the callback
	 * @returns {void}
	 */
	_buildModule(module, callback) {
		const currentProfile = this.profile
			? this.moduleGraph.getProfile(module)
			: undefined;
		if (currentProfile !== undefined) {
			currentProfile.markBuildingStart();
		}

module.needBuild(
			{
				compilation: this,
				fileSystemInfo: this.fileSystemInfo,
				valueCacheVersions: this.valueCacheVersions
			},
			(err, needBuild) => {
				if (err) return callback(err);

if (!needBuild) {
					if (currentProfile !== undefined) {
						currentProfile.markBuildingEnd();
					}
					this.hooks.stillValidModule.call(module);
					return callback();
				}

this.hooks.buildModule.call(module);
				this.builtModules.add(module);
				module.build(
					this.options,
					this,
					this.resolverFactory.get("normal", module.resolveOptions),
					this.inputFileSystem,
					err => {
						if (currentProfile !== undefined) {
							currentProfile.markBuildingEnd();
						}
						if (err) {
							this.hooks.failedModule.call(module, err);
							return callback(err);
						}
						if (currentProfile !== undefined) {
							currentProfile.markStoringStart();
						}
						this._modulesCache.store(module.identifier(), null, module, err => {
							if (currentProfile !== undefined) {
								currentProfile.markStoringEnd();
							}
							if (err) {
								this.hooks.failedModule.call(module, err);
								return callback(new ModuleStoreError(module, err));
							}
							this.hooks.succeedModule.call(module);
							return callback();
						});
					}
				);
			}
		);
	}

/**
	 * @param {Module} module to be processed for deps
	 * @param {ModuleCallback} callback callback to be triggered
	 * @returns {void}
	 */
	processModuleDependencies(module, callback) {
		this.processDependenciesQueue.add(module, callback);
	}

/**
	 * @param {Module} module to be processed for deps
	 * @returns {void}
	 */
	processModuleDependenciesNonRecursive(module) {
		const processDependenciesBlock = block => {
			if (block.dependencies) {
				let i = 0;
				for (const dep of block.dependencies) {
					this.moduleGraph.setParents(dep, block, module, i++);
				}
			}
			if (block.blocks) {
				for (const b of block.blocks) processDependenciesBlock(b);
			}
		};

processDependenciesBlock(module);
	}

/**
	 * @param {Module} module to be processed for deps
	 * @param {ModuleCallback} callback callback to be triggered
	 * @returns {void}
	 */
	_processModuleDependencies(module, callback) {
		/** @type {Array<{factory: ModuleFactory, dependencies: Dependency[], originModule: Module|null}>} */
		const sortedDependencies = [];

/** @type {DependenciesBlock} */
		let currentBlock;

/** @type {Map<ModuleFactory, Map<string, Dependency[]>>} */
		let dependencies;
		/** @type {DepConstructor} */
		let factoryCacheKey;
		/** @type {ModuleFactory} */
		let factoryCacheKey2;
		/** @type {Map<string, Dependency[]>} */
		let factoryCacheValue;
		/** @type {string} */
		let listCacheKey1;
		/** @type {string} */
		let listCacheKey2;
		/** @type {Dependency[]} */
		let listCacheValue;

let inProgressSorting = 1;
		let inProgressTransitive = 1;

const onDependenciesSorted = err => {
			if (err) return callback(err);

// early exit without changing parallelism back and forth
			if (sortedDependencies.length === 0 && inProgressTransitive === 1) {
				return callback();
			}

// This is nested so we need to allow one additional task
			this.processDependenciesQueue.increaseParallelism();

for (const item of sortedDependencies) {
				inProgressTransitive++;
				this.handleModuleCreation(item, err => {
					// In V8, the Error objects keep a reference to the functions on the stack. These warnings &
					// errors are created inside closures that keep a reference to the Compilation, so errors are
					// leaking the Compilation object.
					if (err && this.bail) {
						if (inProgressTransitive <= 0) return;
						inProgressTransitive = -1;
						// eslint-disable-next-line no-self-assign
						err.stack = err.stack;
						onTransitiveTasksFinished(err);
						return;
					}
					if (--inProgressTransitive === 0) onTransitiveTasksFinished();
				});
			}
			if (--inProgressTransitive === 0) onTransitiveTasksFinished();
		};

const onTransitiveTasksFinished = err => {
			if (err) return callback(err);
			this.processDependenciesQueue.decreaseParallelism();

return callback();
		};

/**
		 * @param {Dependency} dep dependency
		 * @param {number} index index in block
		 * @returns {void}
		 */
		const processDependency = (dep, index) => {
			this.moduleGraph.setParents(dep, currentBlock, module, index);
			if (this._unsafeCache) {
				try {
					const unsafeCachedModule = unsafeCacheDependencies.get(dep);
					if (unsafeCachedModule === null) return;
					if (unsafeCachedModule !== undefined) {
						if (
							this._restoredUnsafeCacheModuleEntries.has(unsafeCachedModule)
						) {
							this._handleExistingModuleFromUnsafeCache(
								module,
								dep,
								unsafeCachedModule
							);
							return;
						}
						const identifier = unsafeCachedModule.identifier();
						const cachedModule =
							this._restoredUnsafeCacheEntries.get(identifier);
						if (cachedModule !== undefined) {
							// update unsafe cache to new module
							unsafeCacheDependencies.set(dep, cachedModule);
							this._handleExistingModuleFromUnsafeCache(
								module,
								dep,
								cachedModule
							);
							return;
						}
						inProgressSorting++;
						this._modulesCache.get(identifier, null, (err, cachedModule) => {
							if (err) {
								if (inProgressSorting <= 0) return;
								inProgressSorting = -1;
								onDependenciesSorted(err);
								return;
							}
							try {
								if (!this._restoredUnsafeCacheEntries.has(identifier)) {
									const data = unsafeCacheData.get(cachedModule);
									if (data === undefined) {
										processDependencyForResolving(dep);
										if (--inProgressSorting === 0) onDependenciesSorted();
										return;
									}
									if (cachedModule !== unsafeCachedModule) {
										unsafeCacheDependencies.set(dep, cachedModule);
									}
									cachedModule.restoreFromUnsafeCache(
										data,
										this.params.normalModuleFactory,
										this.params
									);
									this._restoredUnsafeCacheEntries.set(
										identifier,
										cachedModule
									);
									this._restoredUnsafeCacheModuleEntries.add(cachedModule);
									if (!this.modules.has(cachedModule)) {
										inProgressTransitive++;
										this._handleNewModuleFromUnsafeCache(
											module,
											dep,
											cachedModule,
											err => {
												if (err) {
													if (inProgressTransitive <= 0) return;
													inProgressTransitive = -1;
													onTransitiveTasksFinished(err);
												}
												if (--inProgressTransitive === 0)
													return onTransitiveTasksFinished();
											}
										);
										if (--inProgressSorting === 0) onDependenciesSorted();
										return;
									}
								}
								if (unsafeCachedModule !== cachedModule) {
									unsafeCacheDependencies.set(dep, cachedModule);
								}
								this._handleExistingModuleFromUnsafeCache(
									module,
									dep,
									cachedModule
								); // a3
							} catch (err) {
								if (inProgressSorting <= 0) return;
								inProgressSorting = -1;
								onDependenciesSorted(err);
								return;
							}
							if (--inProgressSorting === 0) onDependenciesSorted();
						});
						return;
					}
				} catch (e) {
					console.error(e);
				}
			}
			processDependencyForResolving(dep);
		};

/**
		 * @param {Dependency} dep dependency
		 * @returns {void}
		 */
		const processDependencyForResolving = dep => {
			const resourceIdent = dep.getResourceIdentifier();
			if (resourceIdent !== undefined && resourceIdent !== null) {
				const category = dep.category;
				const constructor = /** @type {DepConstructor} */ (dep.constructor);
				if (factoryCacheKey === constructor) {
					// Fast path 1: same constructor as prev item
					if (listCacheKey1 === category && listCacheKey2 === resourceIdent) {
						// Super fast path 1: also same resource
						listCacheValue.push(dep);
						return;
					}
				} else {
					const factory = this.dependencyFactories.get(constructor);
					if (factory === undefined) {
						throw new Error(
							`No module factory available for dependency type: ${constructor.name}`
						);
					}
					if (factoryCacheKey2 === factory) {
						// Fast path 2: same factory as prev item
						factoryCacheKey = constructor;
						if (listCacheKey1 === category && listCacheKey2 === resourceIdent) {
							// Super fast path 2: also same resource
							listCacheValue.push(dep);
							return;
						}
					} else {
						// Slow path
						if (factoryCacheKey2 !== undefined) {
							// Archive last cache entry
							if (dependencies === undefined) dependencies = new Map();
							dependencies.set(factoryCacheKey2, factoryCacheValue);
							factoryCacheValue = dependencies.get(factory);
							if (factoryCacheValue === undefined) {
								factoryCacheValue = new Map();
							}
						} else {
							factoryCacheValue = new Map();
						}
						factoryCacheKey = constructor;
						factoryCacheKey2 = factory;
					}
				}
				// Here webpack is using heuristic that assumes
				// mostly esm dependencies would be used
				// so we don't allocate extra string for them
				const cacheKey =
					category === esmDependencyCategory
						? resourceIdent
						: `${category}${resourceIdent}`;
				let list = factoryCacheValue.get(cacheKey);
				if (list === undefined) {
					factoryCacheValue.set(cacheKey, (list = []));
					sortedDependencies.push({
						factory: factoryCacheKey2,
						dependencies: list,
						originModule: module
					});
				}
				list.push(dep);
				listCacheKey1 = category;
				listCacheKey2 = resourceIdent;
				listCacheValue = list;
			}
		};

try {
			/** @type {DependenciesBlock[]} */
			const queue = [module];
			do {
				const block = queue.pop();
				if (block.dependencies) {
					currentBlock = block;
					let i = 0;
					for (const dep of block.dependencies) processDependency(dep, i++);
				}
				if (block.blocks) {
					for (const b of block.blocks) queue.push(b);
				}
			} while (queue.length !== 0);
		} catch (e) {
			return callback(e);
		}

if (--inProgressSorting === 0) onDependenciesSorted();
	}

_handleNewModuleFromUnsafeCache(originModule, dependency, module, callback) {
		const moduleGraph = this.moduleGraph;

moduleGraph.setResolvedModule(originModule, dependency, module);

moduleGraph.setIssuerIfUnset(
			module,
			originModule !== undefined ? originModule : null
		);

this._modules.set(module.identifier(), module);
		this.modules.add(module);
		if (this._backCompat)
			ModuleGraph.setModuleGraphForModule(module, this.moduleGraph);

this._handleModuleBuildAndDependencies(
			originModule,
			module,
			true,
			callback
		);
	}

_handleExistingModuleFromUnsafeCache(originModule, dependency, module) {
		const moduleGraph = this.moduleGraph;

moduleGraph.setResolvedModule(originModule, dependency, module);
	}

/**
	 * @typedef {Object} HandleModuleCreationOptions
	 * @property {ModuleFactory} factory
	 * @property {Dependency[]} dependencies
	 * @property {Module | null} originModule
	 * @property {Partial<ModuleFactoryCreateDataContextInfo>=} contextInfo
	 * @property {string=} context
	 * @property {boolean=} recursive recurse into dependencies of the created module
	 * @property {boolean=} connectOrigin connect the resolved module with the origin module
	 */

/**
	 * @param {HandleModuleCreationOptions} options options object
	 * @param {ModuleCallback} callback callback
	 * @returns {void}
	 */
	handleModuleCreation(
		{
			factory,
			dependencies,
			originModule,
			contextInfo,
			context,
			recursive = true,
			connectOrigin = recursive
		},
		callback
	) {
		const moduleGraph = this.moduleGraph;

const currentProfile = this.profile ? new ModuleProfile() : undefined;

this.factorizeModule(
			{
				currentProfile,
				factory,
				dependencies,
				factoryResult: true,
				originModule,
				contextInfo,
				context
			},
			(err, factoryResult) => {
				const applyFactoryResultDependencies = () => {
					const { fileDependencies, contextDependencies, missingDependencies } =
						factoryResult;
					if (fileDependencies) {
						this.fileDependencies.addAll(fileDependencies);
					}
					if (contextDependencies) {
						this.contextDependencies.addAll(contextDependencies);
					}
					if (missingDependencies) {
						this.missingDependencies.addAll(missingDependencies);
					}
				};
				if (err) {
					if (factoryResult) applyFactoryResultDependencies();
					if (dependencies.every(d => d.optional)) {
						this.warnings.push(err);
						return callback();
					} else {
						this.errors.push(err);
						return callback(err);
					}
				}

const newModule = factoryResult.module;

if (!newModule) {
					applyFactoryResultDependencies();
					return callback();
				}

if (currentProfile !== undefined) {
					moduleGraph.setProfile(newModule, currentProfile);
				}

this.addModule(newModule, (err, module) => {
					if (err) {
						applyFactoryResultDependencies();
						if (!err.module) {
							err.module = module;
						}
						this.errors.push(err);

return callback(err);
					}

if (
						this._unsafeCache &&
						factoryResult.cacheable !== false &&
						/** @type {any} */ (module).restoreFromUnsafeCache &&
						this._unsafeCachePredicate(module)
					) {
						const unsafeCacheableModule =
							/** @type {Module & { restoreFromUnsafeCache: Function }} */ (
								module
							);
						for (let i = 0; i < dependencies.length; i++) {
							const dependency = dependencies[i];
							moduleGraph.setResolvedModule(
								connectOrigin ? originModule : null,
								dependency,
								unsafeCacheableModule
							);
							unsafeCacheDependencies.set(dependency, unsafeCacheableModule);
						}
						if (!unsafeCacheData.has(unsafeCacheableModule)) {
							unsafeCacheData.set(
								unsafeCacheableModule,
								unsafeCacheableModule.getUnsafeCacheData()
							);
						}
					} else {
						applyFactoryResultDependencies();
						for (let i = 0; i < dependencies.length; i++) {
							const dependency = dependencies[i];
							moduleGraph.setResolvedModule(
								connectOrigin ? originModule : null,
								dependency,
								module
							);
						}
					}

moduleGraph.setIssuerIfUnset(
						module,
						originModule !== undefined ? originModule : null
					);
					if (module !== newModule) {
						if (currentProfile !== undefined) {
							const otherProfile = moduleGraph.getProfile(module);
							if (otherProfile !== undefined) {
								currentProfile.mergeInto(otherProfile);
							} else {
								moduleGraph.setProfile(module, currentProfile);
							}
						}
					}

this._handleModuleBuildAndDependencies(
						originModule,
						module,
						recursive,
						callback
					);
				});
			}
		);
	}

_handleModuleBuildAndDependencies(originModule, module, recursive, callback) {
		// Check for cycles when build is trigger inside another build
		let creatingModuleDuringBuildSet = undefined;
		if (!recursive && this.buildQueue.isProcessing(originModule)) {
			// Track build dependency
			creatingModuleDuringBuildSet =
				this.creatingModuleDuringBuild.get(originModule);
			if (creatingModuleDuringBuildSet === undefined) {
				creatingModuleDuringBuildSet = new Set();
				this.creatingModuleDuringBuild.set(
					originModule,
					creatingModuleDuringBuildSet
				);
			}
			creatingModuleDuringBuildSet.add(module);

// When building is blocked by another module
			// search for a cycle, cancel the cycle by throwing
			// an error (otherwise this would deadlock)
			const blockReasons = this.creatingModuleDuringBuild.get(module);
			if (blockReasons !== undefined) {
				const set = new Set(blockReasons);
				for (const item of set) {
					const blockReasons = this.creatingModuleDuringBuild.get(item);
					if (blockReasons !== undefined) {
						for (const m of blockReasons) {
							if (m === module) {
								return callback(new BuildCycleError(module));
							}
							set.add(m);
						}
					}
				}
			}
		}

this.buildModule(module, err => {
			if (creatingModuleDuringBuildSet !== undefined) {
				creatingModuleDuringBuildSet.delete(module);
			}
			if (err) {
				if (!err.module) {
					err.module = module;
				}
				this.errors.push(err);

return callback(err);
			}

if (!recursive) {
				this.processModuleDependenciesNonRecursive(module);
				callback(null, module);
				return;
			}

// This avoids deadlocks for circular dependencies
			if (this.processDependenciesQueue.isProcessing(module)) {
				return callback();
			}

this.processModuleDependencies(module, err => {
				if (err) {
					return callback(err);
				}
				callback(null, module);
			});
		});
	}

/**
	 * @param {FactorizeModuleOptions} options options object
	 * @param {ModuleOrFactoryResultCallback} callback callback
	 * @returns {void}
	 */
	_factorizeModule(
		{
			currentProfile,
			factory,
			dependencies,
			originModule,
			factoryResult,
			contextInfo,
			context
		},
		callback
	) {
		if (currentProfile !== undefined) {
			currentProfile.markFactoryStart();
		}
		factory.create(
			{
				contextInfo: {
					issuer: originModule ? originModule.nameForCondition() : "",
					issuerLayer: originModule ? originModule.layer : null,
					compiler: this.compiler.name,
					...contextInfo
				},
				resolveOptions: originModule ? originModule.resolveOptions : undefined,
				context: context
					? context
					: originModule
					? originModule.context
					: this.compiler.context,
				dependencies: dependencies
			},
			(err, result) => {
				if (result) {
					// TODO webpack 6: remove
					// For backward-compat
					if (result.module === undefined && result instanceof Module) {
						result = {
							module: result
						};
					}
					if (!factoryResult) {
						const {
							fileDependencies,
							contextDependencies,
							missingDependencies
						} = result;
						if (fileDependencies) {
							this.fileDependencies.addAll(fileDependencies);
						}
						if (contextDependencies) {
							this.contextDependencies.addAll(contextDependencies);
						}
						if (missingDependencies) {
							this.missingDependencies.addAll(missingDependencies);
						}
					}
				}
				if (err) {
					const notFoundError = new ModuleNotFoundError(
						originModule,
						err,
						dependencies.map(d => d.loc).filter(Boolean)[0]
					);
					return callback(notFoundError, factoryResult ? result : undefined);
				}
				if (!result) {
					return callback();
				}

if (currentProfile !== undefined) {
					currentProfile.markFactoryEnd();
				}

callback(null, factoryResult ? result : result.module);
			}
		);
	}

/**
	 * @param {string} context context string path
	 * @param {Dependency} dependency dependency used to create Module chain
	 * @param {ModuleCallback} callback callback for when module chain is complete
	 * @returns {void} will throw if dependency instance is not a valid Dependency
	 */
	addModuleChain(context, dependency, callback) {
		return this.addModuleTree({ context, dependency }, callback);
	}

/**
	 * @param {Object} options options
	 * @param {string} options.context context string path
	 * @param {Dependency} options.dependency dependency used to create Module chain
	 * @param {Partial<ModuleFactoryCreateDataContextInfo>=} options.contextInfo additional context info for the root module
	 * @param {ModuleCallback} callback callback for when module chain is complete
	 * @returns {void} will throw if dependency instance is not a valid Dependency
	 */
	addModuleTree({ context, dependency, contextInfo }, callback) {
		if (
			typeof dependency !== "object" ||
			dependency === null ||
			!dependency.constructor
		) {
			return callback(
				new WebpackError("Parameter 'dependency' must be a Dependency")
			);
		}
		const Dep = /** @type {DepConstructor} */ (dependency.constructor);
		const moduleFactory = this.dependencyFactories.get(Dep);
		if (!moduleFactory) {
			return callback(
				new WebpackError(
					`No dependency factory available for this dependency type: ${dependency.constructor.name}`
				)
			);
		}

this.handleModuleCreation(
			{
				factory: moduleFactory,
				dependencies: [dependency],
				originModule: null,
				contextInfo,
				context
			},
			(err, result) => {
				if (err && this.bail) {
					callback(err);
					this.buildQueue.stop();
					this.rebuildQueue.stop();
					this.processDependenciesQueue.stop();
					this.factorizeQueue.stop();
				} else if (!err && result) {
					callback(null, result);
				} else {
					callback();
				}
			}
		);
	}

/**
	 * @param {string} context context path for entry
	 * @param {Dependency} entry entry dependency that should be followed
	 * @param {string | EntryOptions} optionsOrName options or deprecated name of entry
	 * @param {ModuleCallback} callback callback function
	 * @returns {void} returns
	 */
	addEntry(context, entry, optionsOrName, callback) {
		// TODO webpack 6 remove
		const options =
			typeof optionsOrName === "object"
				? optionsOrName
				: { name: optionsOrName };

this._addEntryItem(context, entry, "dependencies", options, callback);
	}

/**
	 * @param {string} context context path for entry
	 * @param {Dependency} dependency dependency that should be followed
	 * @param {EntryOptions} options options
	 * @param {ModuleCallback} callback callback function
	 * @returns {void} returns
	 */
	addInclude(context, dependency, options, callback) {
		this._addEntryItem(
			context,
			dependency,
			"includeDependencies",
			options,
			callback
		);
	}

/**
	 * @param {string} context context path for entry
	 * @param {Dependency} entry entry dependency that should be followed
	 * @param {"dependencies" | "includeDependencies"} target type of entry
	 * @param {EntryOptions} options options
	 * @param {ModuleCallback} callback callback function
	 * @returns {void} returns
	 */
	_addEntryItem(context, entry, target, options, callback) {
		const { name } = options;
		let entryData =
			name !== undefined ? this.entries.get(name) : this.globalEntry;
		if (entryData === undefined) {
			entryData = {
				dependencies: [],
				includeDependencies: [],
				options: {
					name: undefined,
					...options
				}
			};
			entryData[target].push(entry);
			this.entries.set(name, entryData);
		} else {
			entryData[target].push(entry);
			for (const key of Object.keys(options)) {
				if (options[key] === undefined) continue;
				if (entryData.options[key] === options[key]) continue;
				if (
					Array.isArray(entryData.options[key]) &&
					Array.isArray(options[key]) &&
					arrayEquals(entryData.options[key], options[key])
				) {
					continue;
				}
				if (entryData.options[key] === undefined) {
					entryData.options[key] = options[key];
				} else {
					return callback(
						new WebpackError(
							`Conflicting entry option ${key} = ${entryData.options[key]} vs ${options[key]}`
						)
					);
				}
			}
		}

this.hooks.addEntry.call(entry, options);

this.addModuleTree(
			{
				context,
				dependency: entry,
				contextInfo: entryData.options.layer
					? { issuerLayer: entryData.options.layer }
					: undefined
			},
			(err, module) => {
				if (err) {
					this.hooks.failedEntry.call(entry, options, err);
					return callback(err);
				}
				this.hooks.succeedEntry.call(entry, options, module);
				return callback(null, module);
			}
		);
	}

/**
	 * @param {Module} module module to be rebuilt
	 * @param {ModuleCallback} callback callback when module finishes rebuilding
	 * @returns {void}
	 */
	rebuildModule(module, callback) {
		this.rebuildQueue.add(module, callback);
	}

/**
	 * @param {Module} module module to be rebuilt
	 * @param {ModuleCallback} callback callback when module finishes rebuilding
	 * @returns {void}
	 */
	_rebuildModule(module, callback) {
		this.hooks.rebuildModule.call(module);
		const oldDependencies = module.dependencies.slice();
		const oldBlocks = module.blocks.slice();
		module.invalidateBuild();
		this.buildQueue.invalidate(module);
		this.buildModule(module, err => {
			if (err) {
				return this.hooks.finishRebuildingModule.callAsync(module, err2 => {
					if (err2) {
						callback(
							makeWebpackError(err2, "Compilation.hooks.finishRebuildingModule")
						);
						return;
					}
					callback(err);
				});
			}

this.processDependenciesQueue.invalidate(module);
			this.moduleGraph.unfreeze();
			this.processModuleDependencies(module, err => {
				if (err) return callback(err);
				this.removeReasonsOfDependencyBlock(module, {
					dependencies: oldDependencies,
					blocks: oldBlocks
				});
				this.hooks.finishRebuildingModule.callAsync(module, err2 => {
					if (err2) {
						callback(
							makeWebpackError(err2, "Compilation.hooks.finishRebuildingModule")
						);
						return;
					}
					callback(null, module);
				});
			});
		});
	}

_computeAffectedModules(modules) {
		const moduleMemCacheCache = this.compiler.moduleMemCaches;
		if (!moduleMemCacheCache) return;
		if (!this.moduleMemCaches) {
			this.moduleMemCaches = new Map();
			this.moduleGraph.setModuleMemCaches(this.moduleMemCaches);
		}
		const { moduleGraph, moduleMemCaches } = this;
		const affectedModules = new Set();
		const infectedModules = new Set();
		let statNew = 0;
		let statChanged = 0;
		let statUnchanged = 0;
		let statReferencesChanged = 0;
		let statWithoutBuild = 0;

/**
		 * @param {Module} module the module
		 * @param {WeakMap<Dependency, Module>} references references
		 * @returns {boolean} true, when the references differ
		 */
		const compareReferences = (module, references) => {
			if (references === undefined) return true;
			for (const connection of moduleGraph.getOutgoingConnections(module)) {
				const d = connection.dependency;
				if (!d) continue;
				const entry = references.get(d);
				if (entry === undefined) continue;
				if (entry !== connection.module) return false;
			}
			return true;
		};

for (const module of modulesWithoutCache) {
			const buildInfo = module.buildInfo;
			if (buildInfo) {
				// create a new entry
				const memCache = new WeakTupleMap();
				moduleMemCacheCache.set(module, {
					buildInfo,
					references: computeReferences(module),
					memCache
				});
				moduleMemCaches.set(module, memCache);
				affectedModules.add(module);
				statNew++;
			} else {
				infectedModules.add(module);
				statWithoutBuild++;
			}
		}

_computeAffectedModulesWithChunkGraph() {
		const { moduleMemCaches } = this;
		if (!moduleMemCaches) return;
		const moduleMemCaches2 = (this.moduleMemCaches2 = new Map());
		const { moduleGraph, chunkGraph } = this;
		const key = "memCache2";
		let statUnchanged = 0;
		let statChanged = 0;
		let statNew = 0;
		/**
		 * @param {Module} module module
		 * @returns {{ id: string | number, modules?: Map<Module, string | number | undefined>, blocks?: (string | number)[] }} references
		 */
		const computeReferences = module => {
			const id = chunkGraph.getModuleId(module);
			/** @type {Map<Module, string | number | undefined>} */
			let modules = undefined;
			/** @type {(string | number)[] | undefined} */
			let blocks = undefined;
			const outgoing = moduleGraph.getOutgoingConnectionsByModule(module);
			if (outgoing !== undefined) {
				for (const m of outgoing.keys()) {
					if (!m) continue;
					if (modules === undefined) modules = new Map();
					modules.set(m, chunkGraph.getModuleId(m));
				}
			}
			if (module.blocks.length > 0) {
				blocks = [];
				const queue = Array.from(module.blocks);
				for (const block of queue) {
					const chunkGroup = chunkGraph.getBlockChunkGroup(block);
					if (chunkGroup) {
						for (const chunk of chunkGroup.chunks) {
							blocks.push(chunk.id);
						}
					} else {
						blocks.push(null);
					}
					queue.push.apply(queue, block.blocks);
				}
			}
			return { id, modules, blocks };
		};
		/**
		 * @param {Module} module module
		 * @param {Object} references references
		 * @param {string | number} references.id id
		 * @param {Map<Module, string | number>=} references.modules modules
		 * @param {(string | number)[]=} references.blocks blocks
		 * @returns {boolean} ok?
		 */
		const compareReferences = (module, { id, modules, blocks }) => {
			if (id !== chunkGraph.getModuleId(module)) return false;
			if (modules !== undefined) {
				for (const [module, id] of modules) {
					if (chunkGraph.getModuleId(module) !== id) return false;
				}
			}
			if (blocks !== undefined) {
				const queue = Array.from(module.blocks);
				let i = 0;
				for (const block of queue) {
					const chunkGroup = chunkGraph.getBlockChunkGroup(block);
					if (chunkGroup) {
						for (const chunk of chunkGroup.chunks) {
							if (i >= blocks.length || blocks[i++] !== chunk.id) return false;
						}
					} else {
						if (i >= blocks.length || blocks[i++] !== null) return false;
					}
					queue.push.apply(queue, block.blocks);
				}
				if (i !== blocks.length) return false;
			}
			return true;
		};

for (const [module, memCache] of moduleMemCaches) {
			/** @type {{ references: { id: string | number, modules?: Map<Module, string | number | undefined>, blocks?: (string | number)[]}, memCache: WeakTupleMap<any[], any> }} */
			const cache = memCache.get(key);
			if (cache === undefined) {
				const memCache2 = new WeakTupleMap();
				memCache.set(key, {
					references: computeReferences(module),
					memCache: memCache2
				});
				moduleMemCaches2.set(module, memCache2);
				statNew++;
			} else if (!compareReferences(module, cache.references)) {
				const memCache = new WeakTupleMap();
				cache.references = computeReferences(module);
				cache.memCache = memCache;
				moduleMemCaches2.set(module, memCache);
				statChanged++;
			} else {
				moduleMemCaches2.set(module, cache.memCache);
				statUnchanged++;
			}
		}

this.logger.log(
			`${Math.round(
				(100 * statChanged) / (statNew + statChanged + statUnchanged)
			)}% modules flagged as affected by chunk graph (${statNew} new modules, ${statChanged} changed, ${statUnchanged} unchanged)`
		);
	}

finish(callback) {
		this.factorizeQueue.clear();
		if (this.profile) {
			this.logger.time("finish module profiles");
			const ParallelismFactorCalculator = require("./util/ParallelismFactorCalculator");
			const p = new ParallelismFactorCalculator();
			const moduleGraph = this.moduleGraph;
			const modulesWithProfiles = new Map();
			for (const module of this.modules) {
				const profile = moduleGraph.getProfile(module);
				if (!profile) continue;
				modulesWithProfiles.set(module, profile);
				p.range(
					profile.buildingStartTime,
					profile.buildingEndTime,
					f => (profile.buildingParallelismFactor = f)
				);
				p.range(
					profile.factoryStartTime,
					profile.factoryEndTime,
					f => (profile.factoryParallelismFactor = f)
				);
				p.range(
					profile.integrationStartTime,
					profile.integrationEndTime,
					f => (profile.integrationParallelismFactor = f)
				);
				p.range(
					profile.storingStartTime,
					profile.storingEndTime,
					f => (profile.storingParallelismFactor = f)
				);
				p.range(
					profile.restoringStartTime,
					profile.restoringEndTime,
					f => (profile.restoringParallelismFactor = f)
				);
				if (profile.additionalFactoryTimes) {
					for (const { start, end } of profile.additionalFactoryTimes) {
						const influence = (end - start) / profile.additionalFactories;
						p.range(
							start,
							end,
							f =>
								(profile.additionalFactoriesParallelismFactor += f * influence)
						);
					}
				}
			}
			p.calculate();

// extract warnings and errors from modules
			this.moduleGraph.freeze("dependency errors");
			// TODO keep a cacheToken (= {}) for each module in the graph
			// create a new one per compilation and flag all updated files
			// and parents with it
			this.logger.time("report dependency errors and warnings");
			for (const module of modules) {
				// TODO only run for modules with changed cacheToken
				// global WeakMap<CacheToken, WeakSet<Module>> to keep modules without errors/warnings
				const memCache = moduleMemCaches && moduleMemCaches.get(module);
				if (memCache && memCache.get("noWarningsOrErrors")) continue;
				let hasProblems = this.reportDependencyErrorsAndWarnings(module, [
					module
				]);
				const errors = module.getErrors();
				if (errors !== undefined) {
					for (const error of errors) {
						if (!error.module) {
							error.module = module;
						}
						this.errors.push(error);
						hasProblems = true;
					}
				}
				const warnings = module.getWarnings();
				if (warnings !== undefined) {
					for (const warning of warnings) {
						if (!warning.module) {
							warning.module = module;
						}
						this.warnings.push(warning);
						hasProblems = true;
					}
				}
				if (!hasProblems && memCache) memCache.set("noWarningsOrErrors", true);
			}
			this.moduleGraph.unfreeze();
			this.logger.timeEnd("report dependency errors and warnings");

callback();
		});
	}

unseal() {
		this.hooks.unseal.call();
		this.chunks.clear();
		this.chunkGroups.length = 0;
		this.namedChunks.clear();
		this.namedChunkGroups.clear();
		this.entrypoints.clear();
		this.additionalChunkAssets.length = 0;
		this.assets = {};
		this.assetsInfo.clear();
		this.moduleGraph.removeAllModuleAttributes();
		this.moduleGraph.unfreeze();
		this.moduleMemCaches2 = undefined;
	}

/**
	 * @param {Callback} callback signals when the call finishes
	 * @returns {void}
	 */
	seal(callback) {
		const finalCallback = err => {
			this.factorizeQueue.clear();
			this.buildQueue.clear();
			this.rebuildQueue.clear();
			this.processDependenciesQueue.clear();
			this.addModuleQueue.clear();
			return callback(err);
		};
		const chunkGraph = new ChunkGraph(
			this.moduleGraph,
			this.outputOptions.hashFunction
		);
		this.chunkGraph = chunkGraph;

if (this._backCompat) {
			for (const module of this.modules) {
				ChunkGraph.setChunkGraphForModule(module, chunkGraph);
			}
		}

this.hooks.seal.call();

this.logger.time("optimize dependencies");
		while (this.hooks.optimizeDependencies.call(this.modules)) {
			/* empty */
		}
		this.hooks.afterOptimizeDependencies.call(this.modules);
		this.logger.timeEnd("optimize dependencies");

this.logger.time("create chunks");
		this.hooks.beforeChunks.call();
		this.moduleGraph.freeze("seal");
		/** @type {Map<Entrypoint, Module[]>} */
		const chunkGraphInit = new Map();
		for (const [name, { dependencies, includeDependencies, options }] of this
			.entries) {
			const chunk = this.addChunk(name);
			if (options.filename) {
				chunk.filenameTemplate = options.filename;
			}
			const entrypoint = new Entrypoint(options);
			if (!options.dependOn && !options.runtime) {
				entrypoint.setRuntimeChunk(chunk);
			}
			entrypoint.setEntrypointChunk(chunk);
			this.namedChunkGroups.set(name, entrypoint);
			this.entrypoints.set(name, entrypoint);
			this.chunkGroups.push(entrypoint);
			connectChunkGroupAndChunk(entrypoint, chunk);

const entryModules = new Set();
			for (const dep of [...this.globalEntry.dependencies, ...dependencies]) {
				entrypoint.addOrigin(null, { name }, /** @type {any} */ (dep).request);

this.assignDepths(entryModules);

const mapAndSort = deps =>
				deps
					.map(dep => this.moduleGraph.getModule(dep))
					.filter(Boolean)
					.sort(compareModulesByIdentifier);
			const includedModules = [
				...mapAndSort(this.globalEntry.includeDependencies),
				...mapAndSort(includeDependencies)
			];

this.logger.time("optimize");
		this.hooks.optimize.call();

while (this.hooks.optimizeModules.call(this.modules)) {
			/* empty */
		}
		this.hooks.afterOptimizeModules.call(this.modules);

while (this.hooks.optimizeChunks.call(this.chunks, this.chunkGroups)) {
			/* empty */
		}
		this.hooks.afterOptimizeChunks.call(this.chunks, this.chunkGroups);

this.hooks.optimizeTree.callAsync(this.chunks, this.modules, err => {
			if (err) {
				return finalCallback(
					makeWebpackError(err, "Compilation.hooks.optimizeTree")
				);
			}

this.hooks.afterOptimizeTree.call(this.chunks, this.modules);

this.hooks.optimizeChunkModules.callAsync(
				this.chunks,
				this.modules,
				err => {
					if (err) {
						return finalCallback(
							makeWebpackError(err, "Compilation.hooks.optimizeChunkModules")
						);
					}

this.hooks.afterOptimizeChunkModules.call(this.chunks, this.modules);

const shouldRecord = this.hooks.shouldRecord.call() !== false;

this.hooks.reviveModules.call(this.modules, this.records);
					this.hooks.beforeModuleIds.call(this.modules);
					this.hooks.moduleIds.call(this.modules);
					this.hooks.optimizeModuleIds.call(this.modules);
					this.hooks.afterOptimizeModuleIds.call(this.modules);

this.hooks.reviveChunks.call(this.chunks, this.records);
					this.hooks.beforeChunkIds.call(this.chunks);
					this.hooks.chunkIds.call(this.chunks);
					this.hooks.optimizeChunkIds.call(this.chunks);
					this.hooks.afterOptimizeChunkIds.call(this.chunks);

this.assignRuntimeIds();

this.logger.time("compute affected modules with chunk graph");
					this._computeAffectedModulesWithChunkGraph();
					this.logger.timeEnd("compute affected modules with chunk graph");

this.sortItemsWithChunkIds();

if (shouldRecord) {
						this.hooks.recordModules.call(this.modules, this.records);
						this.hooks.recordChunks.call(this.chunks, this.records);
					}

this.hooks.optimizeCodeGeneration.call(this.modules);
					this.logger.timeEnd("optimize");

this.logger.time("module hashing");
					this.hooks.beforeModuleHash.call();
					this.createModuleHashes();
					this.hooks.afterModuleHash.call();
					this.logger.timeEnd("module hashing");

this.logger.time("code generation");
					this.hooks.beforeCodeGeneration.call();
					this.codeGeneration(err => {
						if (err) {
							return finalCallback(err);
						}
						this.hooks.afterCodeGeneration.call();
						this.logger.timeEnd("code generation");

this.logger.time("runtime requirements");
						this.hooks.beforeRuntimeRequirements.call();
						this.processRuntimeRequirements();
						this.hooks.afterRuntimeRequirements.call();
						this.logger.timeEnd("runtime requirements");

this.logger.time("hashing");
						this.hooks.beforeHash.call();
						const codeGenerationJobs = this.createHash();
						this.hooks.afterHash.call();
						this.logger.timeEnd("hashing");

this._runCodeGenerationJobs(codeGenerationJobs, err => {
							if (err) {
								return finalCallback(err);
							}

if (shouldRecord) {
								this.logger.time("record hash");
								this.hooks.recordHash.call(this.records);
								this.logger.timeEnd("record hash");
							}

this.logger.time("module assets");
							this.clearAssets();

this.hooks.beforeModuleAssets.call();
							this.createModuleAssets();
							this.logger.timeEnd("module assets");

const cont = () => {
								this.logger.time("process assets");
								this.hooks.processAssets.callAsync(this.assets, err => {
									if (err) {
										return finalCallback(
											makeWebpackError(err, "Compilation.hooks.processAssets")
										);
									}
									this.hooks.afterProcessAssets.call(this.assets);
									this.logger.timeEnd("process assets");
									this.assets = this._backCompat
										? soonFrozenObjectDeprecation(
												this.assets,
												"Compilation.assets",
												"DEP_WEBPACK_COMPILATION_ASSETS",
												`BREAKING CHANGE: No more changes should happen to Compilation.assets after sealing the Compilation.
	Do changes to assets earlier, e. g. in Compilation.hooks.processAssets.
	Make sure to select an appropriate stage from Compilation.PROCESS_ASSETS_STAGE_*.`
										  )
										: Object.freeze(this.assets);

this.summarizeDependencies();
									if (shouldRecord) {
										this.hooks.record.call(this, this.records);
									}

if (this.hooks.needAdditionalSeal.call()) {
										this.unseal();
										return this.seal(callback);
									}
									return this.hooks.afterSeal.callAsync(err => {
										if (err) {
											return finalCallback(
												makeWebpackError(err, "Compilation.hooks.afterSeal")
											);
										}
										this.fileSystemInfo.logStatistics();
										finalCallback();
									});
								});
							};

this.logger.time("create chunk assets");
							if (this.hooks.shouldGenerateChunkAssets.call() !== false) {
								this.hooks.beforeChunkAssets.call();
								this.createChunkAssets(err => {
									this.logger.timeEnd("create chunk assets");
									if (err) {
										return finalCallback(err);
									}
									cont();
								});
							} else {
								this.logger.timeEnd("create chunk assets");
								cont();
							}
						});
					});
				}
			);
		});
	}

/**
	 * @param {Module} module module to report from
	 * @param {DependenciesBlock[]} blocks blocks to report from
	 * @returns {boolean} true, when it has warnings or errors
	 */
	reportDependencyErrorsAndWarnings(module, blocks) {
		let hasProblems = false;
		for (let indexBlock = 0; indexBlock < blocks.length; indexBlock++) {
			const block = blocks[indexBlock];
			const dependencies = block.dependencies;

for (let indexDep = 0; indexDep < dependencies.length; indexDep++) {
				const d = dependencies[indexDep];

const warnings = d.getWarnings(this.moduleGraph);
				if (warnings) {
					for (let indexWar = 0; indexWar < warnings.length; indexWar++) {
						const w = warnings[indexWar];

const warning = new ModuleDependencyWarning(module, w, d.loc);
						this.warnings.push(warning);
						hasProblems = true;
					}
				}
				const errors = d.getErrors(this.moduleGraph);
				if (errors) {
					for (let indexErr = 0; indexErr < errors.length; indexErr++) {
						const e = errors[indexErr];

const error = new ModuleDependencyError(module, e, d.loc);
						this.errors.push(error);
						hasProblems = true;
					}
				}
			}

if (this.reportDependencyErrorsAndWarnings(module, block.blocks))
				hasProblems = true;
		}
		return hasProblems;
	}

codeGeneration(callback) {
		const { chunkGraph } = this;
		this.codeGenerationResults = new CodeGenerationResults(
			this.outputOptions.hashFunction
		);
		/** @type {{module: Module, hash: string, runtime: RuntimeSpec, runtimes: RuntimeSpec[]}[]} */
		const jobs = [];
		for (const module of this.modules) {
			const runtimes = chunkGraph.getModuleRuntimes(module);
			if (runtimes.size === 1) {
				for (const runtime of runtimes) {
					const hash = chunkGraph.getModuleHash(module, runtime);
					jobs.push({ module, hash, runtime, runtimes: [runtime] });
				}
			} else if (runtimes.size > 1) {
				/** @type {Map<string, { runtimes: RuntimeSpec[] }>} */
				const map = new Map();
				for (const runtime of runtimes) {
					const hash = chunkGraph.getModuleHash(module, runtime);
					const job = map.get(hash);
					if (job === undefined) {
						const newJob = { module, hash, runtime, runtimes: [runtime] };
						jobs.push(newJob);
						map.set(hash, newJob);
					} else {
						job.runtimes.push(runtime);
					}
				}
			}
		}

this._runCodeGenerationJobs(jobs, callback);
	}

_runCodeGenerationJobs(jobs, callback) {
		let statModulesFromCache = 0;
		let statModulesGenerated = 0;
		const { chunkGraph, moduleGraph, dependencyTemplates, runtimeTemplate } =
			this;
		const results = this.codeGenerationResults;
		const errors = [];
		/** @type {Set<Module> | undefined} */
		let notCodeGeneratedModules = undefined;
		const runIteration = () => {
			let delayedJobs = [];
			let delayedModules = new Set();
			asyncLib.eachLimit(
				jobs,
				this.options.parallelism,
				(job, callback) => {
					const { module } = job;
					const { codeGenerationDependencies } = module;
					if (codeGenerationDependencies !== undefined) {
						if (
							notCodeGeneratedModules === undefined ||
							codeGenerationDependencies.some(dep => {
								const referencedModule = moduleGraph.getModule(dep);
								return notCodeGeneratedModules.has(referencedModule);
							})
						) {
							delayedJobs.push(job);
							delayedModules.add(module);
							return callback();
						}
					}
					const { hash, runtime, runtimes } = job;
					this._codeGenerationModule(
						module,
						runtime,
						runtimes,
						hash,
						dependencyTemplates,
						chunkGraph,
						moduleGraph,
						runtimeTemplate,
						errors,
						results,
						(err, codeGenerated) => {
							if (codeGenerated) statModulesGenerated++;
							else statModulesFromCache++;
							callback(err);
						}
					);
				},
				err => {
					if (err) return callback(err);
					if (delayedJobs.length > 0) {
						if (delayedJobs.length === jobs.length) {
							return callback(
								new Error(
									`Unable to make progress during code generation because of circular code generation dependency: ${Array.from(
										delayedModules,
										m => m.identifier()
									).join(", ")}`
								)
							);
						}
						jobs = delayedJobs;
						delayedJobs = [];
						notCodeGeneratedModules = delayedModules;
						delayedModules = new Set();
						return runIteration();
					}
					if (errors.length > 0) {
						errors.sort(
							compareSelect(err => err.module, compareModulesByIdentifier)
						);
						for (const error of errors) {
							this.errors.push(error);
						}
					}
					this.logger.log(
						`${Math.round(
							(100 * statModulesGenerated) /
								(statModulesGenerated + statModulesFromCache)
						)}% code generated (${statModulesGenerated} generated, ${statModulesFromCache} from cache)`
					);
					callback();
				}
			);
		};
		runIteration();
	}

/**
	 * @param {Module} module module
	 * @param {RuntimeSpec} runtime runtime
	 * @param {RuntimeSpec[]} runtimes runtimes
	 * @param {string} hash hash
	 * @param {DependencyTemplates} dependencyTemplates dependencyTemplates
	 * @param {ChunkGraph} chunkGraph chunkGraph
	 * @param {ModuleGraph} moduleGraph moduleGraph
	 * @param {RuntimeTemplate} runtimeTemplate runtimeTemplate
	 * @param {WebpackError[]} errors errors
	 * @param {CodeGenerationResults} results results
	 * @param {function(WebpackError=, boolean=): void} callback callback
	 */
	_codeGenerationModule(
		module,
		runtime,
		runtimes,
		hash,
		dependencyTemplates,
		chunkGraph,
		moduleGraph,
		runtimeTemplate,
		errors,
		results,
		callback
	) {
		let codeGenerated = false;
		const cache = new MultiItemCache(
			runtimes.map(runtime =>
				this._codeGenerationCache.getItemCache(
					`${module.identifier()}|${getRuntimeKey(runtime)}`,
					`${hash}|${dependencyTemplates.getHash()}`
				)
			)
		);
		cache.get((err, cachedResult) => {
			if (err) return callback(err);
			let result;
			if (!cachedResult) {
				try {
					codeGenerated = true;
					this.codeGeneratedModules.add(module);
					result = module.codeGeneration({
						chunkGraph,
						moduleGraph,
						dependencyTemplates,
						runtimeTemplate,
						runtime,
						codeGenerationResults: results
					});
				} catch (err) {
					errors.push(new CodeGenerationError(module, err));
					result = cachedResult = {
						sources: new Map(),
						runtimeRequirements: null
					};
				}
			} else {
				result = cachedResult;
			}
			for (const runtime of runtimes) {
				results.add(module, runtime, result);
			}
			if (!cachedResult) {
				cache.store(result, err => callback(err, codeGenerated));
			} else {
				callback(null, codeGenerated);
			}
		});
	}

_getChunkGraphEntries() {
		/** @type {Set<Chunk>} */
		const treeEntries = new Set();
		for (const ep of this.entrypoints.values()) {
			const chunk = ep.getRuntimeChunk();
			if (chunk) treeEntries.add(chunk);
		}
		for (const ep of this.asyncEntrypoints) {
			const chunk = ep.getRuntimeChunk();
			if (chunk) treeEntries.add(chunk);
		}
		return treeEntries;
	}

/**
	 * @param {Object} options options
	 * @param {ChunkGraph=} options.chunkGraph the chunk graph
	 * @param {Iterable<Module>=} options.modules modules
	 * @param {Iterable<Chunk>=} options.chunks chunks
	 * @param {CodeGenerationResults=} options.codeGenerationResults codeGenerationResults
	 * @param {Iterable<Chunk>=} options.chunkGraphEntries chunkGraphEntries
	 * @returns {void}
	 */
	processRuntimeRequirements({
		chunkGraph = this.chunkGraph,
		modules = this.modules,
		chunks = this.chunks,
		codeGenerationResults = this.codeGenerationResults,
		chunkGraphEntries = this._getChunkGraphEntries()
	} = {}) {
		const context = { chunkGraph, codeGenerationResults };
		const { moduleMemCaches2 } = this;
		this.logger.time("runtime requirements.modules");
		const additionalModuleRuntimeRequirements =
			this.hooks.additionalModuleRuntimeRequirements;
		const runtimeRequirementInModule = this.hooks.runtimeRequirementInModule;
		for (const module of modules) {
			if (chunkGraph.getNumberOfModuleChunks(module) > 0) {
				const memCache = moduleMemCaches2 && moduleMemCaches2.get(module);
				for (const runtime of chunkGraph.getModuleRuntimes(module)) {
					if (memCache) {
						const cached = memCache.get(
							`moduleRuntimeRequirements-${getRuntimeKey(runtime)}`
						);
						if (cached !== undefined) {
							if (cached !== null) {
								chunkGraph.addModuleRuntimeRequirements(
									module,
									runtime,
									cached,
									false
								);
							}
							continue;
						}
					}
					let set;
					const runtimeRequirements =
						codeGenerationResults.getRuntimeRequirements(module, runtime);
					if (runtimeRequirements && runtimeRequirements.size > 0) {
						set = new Set(runtimeRequirements);
					} else if (additionalModuleRuntimeRequirements.isUsed()) {
						set = new Set();
					} else {
						if (memCache) {
							memCache.set(
								`moduleRuntimeRequirements-${getRuntimeKey(runtime)}`,
								null
							);
						}
						continue;
					}
					additionalModuleRuntimeRequirements.call(module, set, context);

for (const r of set) {
						const hook = runtimeRequirementInModule.get(r);
						if (hook !== undefined) hook.call(module, set, context);
					}
					if (set.size === 0) {
						if (memCache) {
							memCache.set(
								`moduleRuntimeRequirements-${getRuntimeKey(runtime)}`,
								null
							);
						}
					} else {
						if (memCache) {
							memCache.set(
								`moduleRuntimeRequirements-${getRuntimeKey(runtime)}`,
								set
							);
							chunkGraph.addModuleRuntimeRequirements(
								module,
								runtime,
								set,
								false
							);
						} else {
							chunkGraph.addModuleRuntimeRequirements(module, runtime, set);
						}
					}
				}
			}
		}
		this.logger.timeEnd("runtime requirements.modules");

this.logger.time("runtime requirements.chunks");
		for (const chunk of chunks) {
			const set = new Set();
			for (const module of chunkGraph.getChunkModulesIterable(chunk)) {
				const runtimeRequirements = chunkGraph.getModuleRuntimeRequirements(
					module,
					chunk.runtime
				);
				for (const r of runtimeRequirements) set.add(r);
			}
			this.hooks.additionalChunkRuntimeRequirements.call(chunk, set, context);

for (const r of set) {
				this.hooks.runtimeRequirementInChunk.for(r).call(chunk, set, context);
			}

chunkGraph.addChunkRuntimeRequirements(chunk, set);
		}
		this.logger.timeEnd("runtime requirements.chunks");

this.logger.time("runtime requirements.entries");
		for (const treeEntry of chunkGraphEntries) {
			const set = new Set();
			for (const chunk of treeEntry.getAllReferencedChunks()) {
				const runtimeRequirements =
					chunkGraph.getChunkRuntimeRequirements(chunk);
				for (const r of runtimeRequirements) set.add(r);
			}

this.hooks.additionalTreeRuntimeRequirements.call(
				treeEntry,
				set,
				context
			);

for (const r of set) {
				this.hooks.runtimeRequirementInTree
					.for(r)
					.call(treeEntry, set, context);
			}

chunkGraph.addTreeRuntimeRequirements(treeEntry, set);
		}
		this.logger.timeEnd("runtime requirements.entries");
	}

// TODO webpack 6 make chunkGraph argument non-optional
	/**
	 * @param {Chunk} chunk target chunk
	 * @param {RuntimeModule} module runtime module
	 * @param {ChunkGraph} chunkGraph the chunk graph
	 * @returns {void}
	 */
	addRuntimeModule(chunk, module, chunkGraph = this.chunkGraph) {
		// Deprecated ModuleGraph association
		if (this._backCompat)
			ModuleGraph.setModuleGraphForModule(module, this.moduleGraph);

// add it to the list
		this.modules.add(module);
		this._modules.set(module.identifier(), module);

// connect to the chunk graph
		chunkGraph.connectChunkAndModule(chunk, module);
		chunkGraph.connectChunkAndRuntimeModule(chunk, module);
		if (module.fullHash) {
			chunkGraph.addFullHashModuleToChunk(chunk, module);
		} else if (module.dependentHash) {
			chunkGraph.addDependentHashModuleToChunk(chunk, module);
		}

// attach runtime module
		module.attach(this, chunk, chunkGraph);

// Setup internals
		const exportsInfo = this.moduleGraph.getExportsInfo(module);
		exportsInfo.setHasProvideInfo();
		if (typeof chunk.runtime === "string") {
			exportsInfo.setUsedForSideEffectsOnly(chunk.runtime);
		} else if (chunk.runtime === undefined) {
			exportsInfo.setUsedForSideEffectsOnly(undefined);
		} else {
			for (const runtime of chunk.runtime) {
				exportsInfo.setUsedForSideEffectsOnly(runtime);
			}
		}
		chunkGraph.addModuleRuntimeRequirements(
			module,
			chunk.runtime,
			new Set([RuntimeGlobals.requireScope])
		);

// runtime modules don't need ids
		chunkGraph.setModuleId(module, "");

// Call hook
		this.hooks.runtimeModule.call(module, chunk);
	}

/**
	 * If `module` is passed, `loc` and `request` must also be passed.
	 * @param {string | ChunkGroupOptions} groupOptions options for the chunk group
	 * @param {Module=} module the module the references the chunk group
	 * @param {DependencyLocation=} loc the location from with the chunk group is referenced (inside of module)
	 * @param {string=} request the request from which the the chunk group is referenced
	 * @returns {ChunkGroup} the new or existing chunk group
	 */
	addChunkInGroup(groupOptions, module, loc, request) {
		if (typeof groupOptions === "string") {
			groupOptions = { name: groupOptions };
		}
		const name = groupOptions.name;

if (name) {
			const chunkGroup = this.namedChunkGroups.get(name);
			if (chunkGroup !== undefined) {
				chunkGroup.addOptions(groupOptions);
				if (module) {
					chunkGroup.addOrigin(module, loc, request);
				}
				return chunkGroup;
			}
		}
		const chunkGroup = new ChunkGroup(groupOptions);
		if (module) chunkGroup.addOrigin(module, loc, request);
		const chunk = this.addChunk(name);

connectChunkGroupAndChunk(chunkGroup, chunk);

this.chunkGroups.push(chunkGroup);
		if (name) {
			this.namedChunkGroups.set(name, chunkGroup);
		}
		return chunkGroup;
	}

/**
	 * @param {EntryOptions} options options for the entrypoint
	 * @param {Module} module the module the references the chunk group
	 * @param {DependencyLocation} loc the location from with the chunk group is referenced (inside of module)
	 * @param {string} request the request from which the the chunk group is referenced
	 * @returns {Entrypoint} the new or existing entrypoint
	 */
	addAsyncEntrypoint(options, module, loc, request) {
		const name = options.name;
		if (name) {
			const entrypoint = this.namedChunkGroups.get(name);
			if (entrypoint instanceof Entrypoint) {
				if (entrypoint !== undefined) {
					if (module) {
						entrypoint.addOrigin(module, loc, request);
					}
					return entrypoint;
				}
			} else if (entrypoint) {
				throw new Error(
					`Cannot add an async entrypoint with the name '${name}', because there is already an chunk group with this name`
				);
			}
		}
		const chunk = this.addChunk(name);
		if (options.filename) {
			chunk.filenameTemplate = options.filename;
		}
		const entrypoint = new Entrypoint(options, false);
		entrypoint.setRuntimeChunk(chunk);
		entrypoint.setEntrypointChunk(chunk);
		if (name) {
			this.namedChunkGroups.set(name, entrypoint);
		}
		this.chunkGroups.push(entrypoint);
		this.asyncEntrypoints.push(entrypoint);
		connectChunkGroupAndChunk(entrypoint, chunk);
		if (module) {
			entrypoint.addOrigin(module, loc, request);
		}
		return entrypoint;
	}

/**
	 * This method first looks to see if a name is provided for a new chunk,
	 * and first looks to see if any named chunks already exist and reuse that chunk instead.
	 *
	 * @param {string=} name optional chunk name to be provided
	 * @returns {Chunk} create a chunk (invoked during seal event)
	 */
	addChunk(name) {
		if (name) {
			const chunk = this.namedChunks.get(name);
			if (chunk !== undefined) {
				return chunk;
			}
		}
		const chunk = new Chunk(name, this._backCompat);
		this.chunks.add(chunk);
		if (this._backCompat)
			ChunkGraph.setChunkGraphForChunk(chunk, this.chunkGraph);
		if (name) {
			this.namedChunks.set(name, chunk);
		}
		return chunk;
	}

/**
	 * @deprecated
	 * @param {Module} module module to assign depth
	 * @returns {void}
	 */
	assignDepth(module) {
		const moduleGraph = this.moduleGraph;

const queue = new Set([module]);
		let depth;

moduleGraph.setDepth(module, 0);

/**
		 * @param {Module} module module for processing
		 * @returns {void}
		 */
		const processModule = module => {
			if (!moduleGraph.setDepthIfLower(module, depth)) return;
			queue.add(module);
		};

for (module of queue) {
			queue.delete(module);
			depth = moduleGraph.getDepth(module) + 1;

for (const connection of moduleGraph.getOutgoingConnections(module)) {
				const refModule = connection.module;
				if (refModule) {
					processModule(refModule);
				}
			}
		}
	}

/**
	 * @param {Set<Module>} modules module to assign depth
	 * @returns {void}
	 */
	assignDepths(modules) {
		const moduleGraph = this.moduleGraph;

/** @type {Set<Module | number>} */
		const queue = new Set(modules);
		queue.add(1);
		let depth = 0;

/**
	 * @param {Dependency} dependency the dependency
	 * @param {RuntimeSpec} runtime the runtime
	 * @returns {(string[] | ReferencedExport)[]} referenced exports
	 */
	getDependencyReferencedExports(dependency, runtime) {
		const referencedExports = dependency.getReferencedExports(
			this.moduleGraph,
			runtime
		);
		return this.hooks.dependencyReferencedExports.call(
			referencedExports,
			dependency,
			runtime
		);
	}

/**
	 *
	 * @param {Module} module module relationship for removal
	 * @param {DependenciesBlockLike} block //TODO: good description
	 * @returns {void}
	 */
	removeReasonsOfDependencyBlock(module, block) {
		if (block.blocks) {
			for (const b of block.blocks) {
				this.removeReasonsOfDependencyBlock(module, b);
			}
		}

if (block.dependencies) {
			for (const dep of block.dependencies) {
				const originalModule = this.moduleGraph.getModule(dep);
				if (originalModule) {
					this.moduleGraph.removeConnection(dep);

if (this.chunkGraph) {
						for (const chunk of this.chunkGraph.getModuleChunks(
							originalModule
						)) {
							this.patchChunksAfterReasonRemoval(originalModule, chunk);
						}
					}
				}
			}
		}
	}

/**
	 * @param {Module} module module to patch tie
	 * @param {Chunk} chunk chunk to patch tie
	 * @returns {void}
	 */
	patchChunksAfterReasonRemoval(module, chunk) {
		if (!module.hasReasons(this.moduleGraph, chunk.runtime)) {
			this.removeReasonsOfDependencyBlock(module, module);
		}
		if (!module.hasReasonForChunk(chunk, this.moduleGraph, this.chunkGraph)) {
			if (this.chunkGraph.isModuleInChunk(module, chunk)) {
				this.chunkGraph.disconnectChunkAndModule(chunk, module);
				this.removeChunkFromDependencies(module, chunk);
			}
		}
	}

/**
	 *
	 * @param {DependenciesBlock} block block tie for Chunk
	 * @param {Chunk} chunk chunk to remove from dep
	 * @returns {void}
	 */
	removeChunkFromDependencies(block, chunk) {
		/**
		 * @param {Dependency} d dependency to (maybe) patch up
		 */
		const iteratorDependency = d => {
			const depModule = this.moduleGraph.getModule(d);
			if (!depModule) {
				return;
			}
			this.patchChunksAfterReasonRemoval(depModule, chunk);
		};

const blocks = block.blocks;
		for (let indexBlock = 0; indexBlock < blocks.length; indexBlock++) {
			const asyncBlock = blocks[indexBlock];
			const chunkGroup = this.chunkGraph.getBlockChunkGroup(asyncBlock);
			// Grab all chunks from the first Block's AsyncDepBlock
			const chunks = chunkGroup.chunks;
			// For each chunk in chunkGroup
			for (let indexChunk = 0; indexChunk < chunks.length; indexChunk++) {
				const iteratedChunk = chunks[indexChunk];
				chunkGroup.removeChunk(iteratedChunk);
				// Recurse
				this.removeChunkFromDependencies(block, iteratedChunk);
			}
		}

if (block.dependencies) {
			for (const dep of block.dependencies) iteratorDependency(dep);
		}
	}

assignRuntimeIds() {
		const { chunkGraph } = this;
		const processEntrypoint = ep => {
			const runtime = ep.options.runtime || ep.name;
			const chunk = ep.getRuntimeChunk();
			chunkGraph.setRuntimeId(runtime, chunk.id);
		};
		for (const ep of this.entrypoints.values()) {
			processEntrypoint(ep);
		}
		for (const ep of this.asyncEntrypoints) {
			processEntrypoint(ep);
		}
	}

sortItemsWithChunkIds() {
		for (const chunkGroup of this.chunkGroups) {
			chunkGroup.sortItems();
		}

this.errors.sort(compareErrors);
		this.warnings.sort(compareErrors);
		this.children.sort(byNameOrHash);
	}

summarizeDependencies() {
		for (
			let indexChildren = 0;
			indexChildren < this.children.length;
			indexChildren++
		) {
			const child = this.children[indexChildren];

this.fileDependencies.addAll(child.fileDependencies);
			this.contextDependencies.addAll(child.contextDependencies);
			this.missingDependencies.addAll(child.missingDependencies);
			this.buildDependencies.addAll(child.buildDependencies);
		}

for (const module of this.modules) {
			module.addCacheDependencies(
				this.fileDependencies,
				this.contextDependencies,
				this.missingDependencies,
				this.buildDependencies
			);
		}
	}

createModuleHashes() {
		let statModulesHashed = 0;
		let statModulesFromCache = 0;
		const { chunkGraph, runtimeTemplate, moduleMemCaches2 } = this;
		const { hashFunction, hashDigest, hashDigestLength } = this.outputOptions;
		for (const module of this.modules) {
			const memCache = moduleMemCaches2 && moduleMemCaches2.get(module);
			for (const runtime of chunkGraph.getModuleRuntimes(module)) {
				if (memCache) {
					const digest = memCache.get(`moduleHash-${getRuntimeKey(runtime)}`);
					if (digest !== undefined) {
						chunkGraph.setModuleHashes(
							module,
							runtime,
							digest,
							digest.substr(0, hashDigestLength)
						);
						statModulesFromCache++;
						continue;
					}
				}
				statModulesHashed++;
				const digest = this._createModuleHash(
					module,
					chunkGraph,
					runtime,
					hashFunction,
					runtimeTemplate,
					hashDigest,
					hashDigestLength
				);
				if (memCache) {
					memCache.set(`moduleHash-${getRuntimeKey(runtime)}`, digest);
				}
			}
		}
		this.logger.log(
			`${statModulesHashed} modules hashed, ${statModulesFromCache} from cache (${
				Math.round(
					(100 * (statModulesHashed + statModulesFromCache)) / this.modules.size
				) / 100
			} variants per module in average)`
		);
	}

_createModuleHash(
		module,
		chunkGraph,
		runtime,
		hashFunction,
		runtimeTemplate,
		hashDigest,
		hashDigestLength
	) {
		const moduleHash = createHash(hashFunction);
		module.updateHash(moduleHash, {
			chunkGraph,
			runtime,
			runtimeTemplate
		});
		const moduleHashDigest = /** @type {string} */ (
			moduleHash.digest(hashDigest)
		);
		chunkGraph.setModuleHashes(
			module,
			runtime,
			moduleHashDigest,
			moduleHashDigest.substr(0, hashDigestLength)
		);
		return moduleHashDigest;
	}

createHash() {
		this.logger.time("hashing: initialize hash");
		const chunkGraph = this.chunkGraph;
		const runtimeTemplate = this.runtimeTemplate;
		const outputOptions = this.outputOptions;
		const hashFunction = outputOptions.hashFunction;
		const hashDigest = outputOptions.hashDigest;
		const hashDigestLength = outputOptions.hashDigestLength;
		const hash = createHash(hashFunction);
		if (outputOptions.hashSalt) {
			hash.update(outputOptions.hashSalt);
		}
		this.logger.timeEnd("hashing: initialize hash");
		if (this.children.length > 0) {
			this.logger.time("hashing: hash child compilations");
			for (const child of this.children) {
				hash.update(child.hash);
			}
			this.logger.timeEnd("hashing: hash child compilations");
		}
		if (this.warnings.length > 0) {
			this.logger.time("hashing: hash warnings");
			for (const warning of this.warnings) {
				hash.update(`${warning.message}`);
			}
			this.logger.timeEnd("hashing: hash warnings");
		}
		if (this.errors.length > 0) {
			this.logger.time("hashing: hash errors");
			for (const error of this.errors) {
				hash.update(`${error.message}`);
			}
			this.logger.timeEnd("hashing: hash errors");
		}

this.logger.time("hashing: sort chunks");
		/*
		 * all non-runtime chunks need to be hashes first,
		 * since runtime chunk might use their hashes.
		 * runtime chunks need to be hashed in the correct order
		 * since they may depend on each other (for async entrypoints).
		 * So we put all non-runtime chunks first and hash them in any order.
		 * And order runtime chunks according to referenced between each other.
		 * Chunks need to be in deterministic order since we add hashes to full chunk
		 * during these hashing.
		 */
		/** @type {Chunk[]} */
		const unorderedRuntimeChunks = [];
		/** @type {Chunk[]} */
		const otherChunks = [];
		for (const c of this.chunks) {
			if (c.hasRuntime()) {
				unorderedRuntimeChunks.push(c);
			} else {
				otherChunks.push(c);
			}
		}
		unorderedRuntimeChunks.sort(byId);
		otherChunks.sort(byId);

/** @typedef {{ chunk: Chunk, referencedBy: RuntimeChunkInfo[], remaining: number }} RuntimeChunkInfo */
		/** @type {Map<Chunk, RuntimeChunkInfo>} */
		const runtimeChunksMap = new Map();
		for (const chunk of unorderedRuntimeChunks) {
			runtimeChunksMap.set(chunk, {
				chunk,
				referencedBy: [],
				remaining: 0
			});
		}
		let remaining = 0;
		for (const info of runtimeChunksMap.values()) {
			for (const other of new Set(
				Array.from(info.chunk.getAllReferencedAsyncEntrypoints()).map(
					e => e.chunks[e.chunks.length - 1]
				)
			)) {
				const otherInfo = runtimeChunksMap.get(other);
				otherInfo.referencedBy.push(info);
				info.remaining++;
				remaining++;
			}
		}
		/** @type {Chunk[]} */
		const runtimeChunks = [];
		for (const info of runtimeChunksMap.values()) {
			if (info.remaining === 0) {
				runtimeChunks.push(info.chunk);
			}
		}
		// If there are any references between chunks
		// make sure to follow these chains
		if (remaining > 0) {
			const readyChunks = [];
			for (const chunk of runtimeChunks) {
				const hasFullHashModules =
					chunkGraph.getNumberOfChunkFullHashModules(chunk) !== 0;
				const info = runtimeChunksMap.get(chunk);
				for (const otherInfo of info.referencedBy) {
					if (hasFullHashModules) {
						chunkGraph.upgradeDependentToFullHashModules(otherInfo.chunk);
					}
					remaining--;
					if (--otherInfo.remaining === 0) {
						readyChunks.push(otherInfo.chunk);
					}
				}
				if (readyChunks.length > 0) {
					// This ensures deterministic ordering, since referencedBy is non-deterministic
					readyChunks.sort(byId);
					for (const c of readyChunks) runtimeChunks.push(c);
					readyChunks.length = 0;
				}
			}
		}
		// If there are still remaining references we have cycles and want to create a warning
		if (remaining > 0) {
			let circularRuntimeChunkInfo = [];
			for (const info of runtimeChunksMap.values()) {
				if (info.remaining !== 0) {
					circularRuntimeChunkInfo.push(info);
				}
			}
			circularRuntimeChunkInfo.sort(compareSelect(i => i.chunk, byId));
			const err =
				new WebpackError(`Circular dependency between chunks with runtime (${Array.from(
					circularRuntimeChunkInfo,
					c => c.chunk.name || c.chunk.id
				).join(", ")})
This prevents using hashes of each other and should be avoided.`);
			err.chunk = circularRuntimeChunkInfo[0].chunk;
			this.warnings.push(err);
			for (const i of circularRuntimeChunkInfo) runtimeChunks.push(i.chunk);
		}
		this.logger.timeEnd("hashing: sort chunks");

this.logger.timeAggregateEnd("hashing: hash runtime modules");
		this.logger.timeAggregateEnd("hashing: hash chunks");
		this.logger.time("hashing: hash digest");
		this.hooks.fullHash.call(hash);
		this.fullHash = /** @type {string} */ (hash.digest(hashDigest));
		this.hash = this.fullHash.substr(0, hashDigestLength);
		this.logger.timeEnd("hashing: hash digest");

this.logger.time("hashing: process full hash modules");
		for (const chunk of fullHashChunks) {
			for (const module of chunkGraph.getChunkFullHashModulesIterable(chunk)) {
				const moduleHash = createHash(hashFunction);
				module.updateHash(moduleHash, {
					chunkGraph,
					runtime: chunk.runtime,
					runtimeTemplate
				});
				const moduleHashDigest = /** @type {string} */ (
					moduleHash.digest(hashDigest)
				);
				const oldHash = chunkGraph.getModuleHash(module, chunk.runtime);
				chunkGraph.setModuleHashes(
					module,
					chunk.runtime,
					moduleHashDigest,
					moduleHashDigest.substr(0, hashDigestLength)
				);
				codeGenerationJobsMap.get(oldHash).get(module).hash = moduleHashDigest;
			}
			const chunkHash = createHash(hashFunction);
			chunkHash.update(chunk.hash);
			chunkHash.update(this.hash);
			const chunkHashDigest = /** @type {string} */ (
				chunkHash.digest(hashDigest)
			);
			chunk.hash = chunkHashDigest;
			chunk.renderedHash = chunk.hash.substr(0, hashDigestLength);
			this.hooks.contentHash.call(chunk);
		}
		this.logger.timeEnd("hashing: process full hash modules");
		return codeGenerationJobs;
	}

/**
	 * @param {string} file file name
	 * @param {Source} source asset source
	 * @param {AssetInfo} assetInfo extra asset information
	 * @returns {void}
	 */
	emitAsset(file, source, assetInfo = {}) {
		if (this.assets[file]) {
			if (!isSourceEqual(this.assets[file], source)) {
				this.errors.push(
					new WebpackError(
						`Conflict: Multiple assets emit different content to the same filename ${file}`
					)
				);
				this.assets[file] = source;
				this._setAssetInfo(file, assetInfo);
				return;
			}
			const oldInfo = this.assetsInfo.get(file);
			const newInfo = Object.assign({}, oldInfo, assetInfo);
			this._setAssetInfo(file, newInfo, oldInfo);
			return;
		}
		this.assets[file] = source;
		this._setAssetInfo(file, assetInfo, undefined);
	}

_setAssetInfo(file, newInfo, oldInfo = this.assetsInfo.get(file)) {
		if (newInfo === undefined) {
			this.assetsInfo.delete(file);
		} else {
			this.assetsInfo.set(file, newInfo);
		}
		const oldRelated = oldInfo && oldInfo.related;
		const newRelated = newInfo && newInfo.related;
		if (oldRelated) {
			for (const key of Object.keys(oldRelated)) {
				const remove = name => {
					const relatedIn = this._assetsRelatedIn.get(name);
					if (relatedIn === undefined) return;
					const entry = relatedIn.get(key);
					if (entry === undefined) return;
					entry.delete(file);
					if (entry.size !== 0) return;
					relatedIn.delete(key);
					if (relatedIn.size === 0) this._assetsRelatedIn.delete(name);
				};
				const entry = oldRelated[key];
				if (Array.isArray(entry)) {
					entry.forEach(remove);
				} else if (entry) {
					remove(entry);
				}
			}
		}
		if (newRelated) {
			for (const key of Object.keys(newRelated)) {
				const add = name => {
					let relatedIn = this._assetsRelatedIn.get(name);
					if (relatedIn === undefined) {
						this._assetsRelatedIn.set(name, (relatedIn = new Map()));
					}
					let entry = relatedIn.get(key);
					if (entry === undefined) {
						relatedIn.set(key, (entry = new Set()));
					}
					entry.add(file);
				};
				const entry = newRelated[key];
				if (Array.isArray(entry)) {
					entry.forEach(add);
				} else if (entry) {
					add(entry);
				}
			}
		}
	}

/**
	 * @param {string} file file name
	 * @param {Source | function(Source): Source} newSourceOrFunction new asset source or function converting old to new
	 * @param {AssetInfo | function(AssetInfo | undefined): AssetInfo} assetInfoUpdateOrFunction new asset info or function converting old to new
	 */
	updateAsset(
		file,
		newSourceOrFunction,
		assetInfoUpdateOrFunction = undefined
	) {
		if (!this.assets[file]) {
			throw new Error(
				`Called Compilation.updateAsset for not existing filename ${file}`
			);
		}
		if (typeof newSourceOrFunction === "function") {
			this.assets[file] = newSourceOrFunction(this.assets[file]);
		} else {
			this.assets[file] = newSourceOrFunction;
		}
		if (assetInfoUpdateOrFunction !== undefined) {
			const oldInfo = this.assetsInfo.get(file) || EMPTY_ASSET_INFO;
			if (typeof assetInfoUpdateOrFunction === "function") {
				this._setAssetInfo(file, assetInfoUpdateOrFunction(oldInfo), oldInfo);
			} else {
				this._setAssetInfo(
					file,
					cachedCleverMerge(oldInfo, assetInfoUpdateOrFunction),
					oldInfo
				);
			}
		}
	}

renameAsset(file, newFile) {
		const source = this.assets[file];
		if (!source) {
			throw new Error(
				`Called Compilation.renameAsset for not existing filename ${file}`
			);
		}
		if (this.assets[newFile]) {
			if (!isSourceEqual(this.assets[file], source)) {
				this.errors.push(
					new WebpackError(
						`Conflict: Called Compilation.renameAsset for already existing filename ${newFile} with different content`
					)
				);
			}
		}
		const assetInfo = this.assetsInfo.get(file);
		// Update related in all other assets
		const relatedInInfo = this._assetsRelatedIn.get(file);
		if (relatedInInfo) {
			for (const [key, assets] of relatedInInfo) {
				for (const name of assets) {
					const info = this.assetsInfo.get(name);
					if (!info) continue;
					const related = info.related;
					if (!related) continue;
					const entry = related[key];
					let newEntry;
					if (Array.isArray(entry)) {
						newEntry = entry.map(x => (x === file ? newFile : x));
					} else if (entry === file) {
						newEntry = newFile;
					} else continue;
					this.assetsInfo.set(name, {
						...info,
						related: {
							...related,
							[key]: newEntry
						}
					});
				}
			}
		}
		this._setAssetInfo(file, undefined, assetInfo);
		this._setAssetInfo(newFile, assetInfo);
		delete this.assets[file];
		this.assets[newFile] = source;
		for (const chunk of this.chunks) {
			{
				const size = chunk.files.size;
				chunk.files.delete(file);
				if (size !== chunk.files.size) {
					chunk.files.add(newFile);
				}
			}
			{
				const size = chunk.auxiliaryFiles.size;
				chunk.auxiliaryFiles.delete(file);
				if (size !== chunk.auxiliaryFiles.size) {
					chunk.auxiliaryFiles.add(newFile);
				}
			}
		}
	}

/**
	 * @param {string} file file name
	 */
	deleteAsset(file) {
		if (!this.assets[file]) {
			return;
		}
		delete this.assets[file];
		const assetInfo = this.assetsInfo.get(file);
		this._setAssetInfo(file, undefined, assetInfo);
		const related = assetInfo && assetInfo.related;
		if (related) {
			for (const key of Object.keys(related)) {
				const checkUsedAndDelete = file => {
					if (!this._assetsRelatedIn.has(file)) {
						this.deleteAsset(file);
					}
				};
				const items = related[key];
				if (Array.isArray(items)) {
					items.forEach(checkUsedAndDelete);
				} else if (items) {
					checkUsedAndDelete(items);
				}
			}
		}
		// TODO If this becomes a performance problem
		// store a reverse mapping from asset to chunk
		for (const chunk of this.chunks) {
			chunk.files.delete(file);
			chunk.auxiliaryFiles.delete(file);
		}
	}

getAssets() {
		/** @type {Readonly<Asset>[]} */
		const array = [];
		for (const assetName of Object.keys(this.assets)) {
			if (Object.prototype.hasOwnProperty.call(this.assets, assetName)) {
				array.push({
					name: assetName,
					source: this.assets[assetName],
					info: this.assetsInfo.get(assetName) || EMPTY_ASSET_INFO
				});
			}
		}
		return array;
	}

/**
	 * @param {string} name the name of the asset
	 * @returns {Readonly<Asset> | undefined} the asset or undefined when not found
	 */
	getAsset(name) {
		if (!Object.prototype.hasOwnProperty.call(this.assets, name))
			return undefined;
		return {
			name,
			source: this.assets[name],
			info: this.assetsInfo.get(name) || EMPTY_ASSET_INFO
		};
	}

clearAssets() {
		for (const chunk of this.chunks) {
			chunk.files.clear();
			chunk.auxiliaryFiles.clear();
		}
	}

createModuleAssets() {
		const { chunkGraph } = this;
		for (const module of this.modules) {
			if (module.buildInfo.assets) {
				const assetsInfo = module.buildInfo.assetsInfo;
				for (const assetName of Object.keys(module.buildInfo.assets)) {
					const fileName = this.getPath(assetName, {
						chunkGraph: this.chunkGraph,
						module
					});
					for (const chunk of chunkGraph.getModuleChunksIterable(module)) {
						chunk.auxiliaryFiles.add(fileName);
					}
					this.emitAsset(
						fileName,
						module.buildInfo.assets[assetName],
						assetsInfo ? assetsInfo.get(assetName) : undefined
					);
					this.hooks.moduleAsset.call(module, fileName);
				}
			}
		}
	}

/**
	 * @param {RenderManifestOptions} options options object
	 * @returns {RenderManifestEntry[]} manifest entries
	 */
	getRenderManifest(options) {
		return this.hooks.renderManifest.call([], options);
	}

/**
	 * @param {Callback} callback signals when the call finishes
	 * @returns {void}
	 */
	createChunkAssets(callback) {
		const outputOptions = this.outputOptions;
		const cachedSourceMap = new WeakMap();
		/** @type {Map<string, {hash: string, source: Source, chunk: Chunk}>} */
		const alreadyWrittenFiles = new Map();

asyncLib.forEachLimit(
			this.chunks,
			15,
			(chunk, callback) => {
				/** @type {RenderManifestEntry[]} */
				let manifest;
				try {
					manifest = this.getRenderManifest({
						chunk,
						hash: this.hash,
						fullHash: this.fullHash,
						outputOptions,
						codeGenerationResults: this.codeGenerationResults,
						moduleTemplates: this.moduleTemplates,
						dependencyTemplates: this.dependencyTemplates,
						chunkGraph: this.chunkGraph,
						moduleGraph: this.moduleGraph,
						runtimeTemplate: this.runtimeTemplate
					});
				} catch (err) {
					this.errors.push(new ChunkRenderError(chunk, "", err));
					return callback();
				}
				asyncLib.forEach(
					manifest,
					(fileManifest, callback) => {
						const ident = fileManifest.identifier;
						const usedHash = fileManifest.hash;

const assetCacheItem = this._assetsCache.getItemCache(
							ident,
							usedHash
						);

assetCacheItem.get((err, sourceFromCache) => {
							/** @type {string | function(PathData, AssetInfo=): string} */
							let filenameTemplate;
							/** @type {string} */
							let file;
							/** @type {AssetInfo} */
							let assetInfo;

let inTry = true;
							const errorAndCallback = err => {
								const filename =
									file ||
									(typeof file === "string"
										? file
										: typeof filenameTemplate === "string"
										? filenameTemplate
										: "");

this.errors.push(new ChunkRenderError(chunk, filename, err));
								inTry = false;
								return callback();
							};

try {
								if ("filename" in fileManifest) {
									file = fileManifest.filename;
									assetInfo = fileManifest.info;
								} else {
									filenameTemplate = fileManifest.filenameTemplate;
									const pathAndInfo = this.getPathWithInfo(
										filenameTemplate,
										fileManifest.pathOptions
									);
									file = pathAndInfo.path;
									assetInfo = fileManifest.info
										? {
												...pathAndInfo.info,
												...fileManifest.info
										  }
										: pathAndInfo.info;
								}

if (err) {
									return errorAndCallback(err);
								}

let source = sourceFromCache;

// check if the same filename was already written by another chunk
								const alreadyWritten = alreadyWrittenFiles.get(file);
								if (alreadyWritten !== undefined) {
									if (alreadyWritten.hash !== usedHash) {
										inTry = false;
										return callback(
											new WebpackError(
												`Conflict: Multiple chunks emit assets to the same filename ${file}` +
													` (chunks ${alreadyWritten.chunk.id} and ${chunk.id})`
											)
										);
									} else {
										source = alreadyWritten.source;
									}
								} else if (!source) {
									// render the asset
									source = fileManifest.render();

// Ensure that source is a cached source to avoid additional cost because of repeated access
									if (!(source instanceof CachedSource)) {
										const cacheEntry = cachedSourceMap.get(source);
										if (cacheEntry) {
											source = cacheEntry;
										} else {
											const cachedSource = new CachedSource(source);
											cachedSourceMap.set(source, cachedSource);
											source = cachedSource;
										}
									}
								}
								this.emitAsset(file, source, assetInfo);
								if (fileManifest.auxiliary) {
									chunk.auxiliaryFiles.add(file);
								} else {
									chunk.files.add(file);
								}
								this.hooks.chunkAsset.call(chunk, file);
								alreadyWrittenFiles.set(file, {
									hash: usedHash,
									source,
									chunk
								});
								if (source !== sourceFromCache) {
									assetCacheItem.store(source, err => {
										if (err) return errorAndCallback(err);
										inTry = false;
										return callback();
									});
								} else {
									inTry = false;
									callback();
								}
							} catch (err) {
								if (!inTry) throw err;
								errorAndCallback(err);
							}
						});
					},
					callback
				);
			},
			callback
		);
	}

/**
	 * @param {string | function(PathData, AssetInfo=): string} filename used to get asset path with hash
	 * @param {PathData} data context data
	 * @returns {string} interpolated path
	 */
	getPath(filename, data = {}) {
		if (!data.hash) {
			data = {
				hash: this.hash,
				...data
			};
		}
		return this.getAssetPath(filename, data);
	}

/**
	 * @param {string | function(PathData, AssetInfo=): string} filename used to get asset path with hash
	 * @param {PathData} data context data
	 * @returns {{ path: string, info: AssetInfo }} interpolated path and asset info
	 */
	getPathWithInfo(filename, data = {}) {
		if (!data.hash) {
			data = {
				hash: this.hash,
				...data
			};
		}
		return this.getAssetPathWithInfo(filename, data);
	}

/**
	 * @param {string | function(PathData, AssetInfo=): string} filename used to get asset path with hash
	 * @param {PathData} data context data
	 * @returns {string} interpolated path
	 */
	getAssetPath(filename, data) {
		return this.hooks.assetPath.call(
			typeof filename === "function" ? filename(data) : filename,
			data,
			undefined
		);
	}

/**
	 * @param {string | function(PathData, AssetInfo=): string} filename used to get asset path with hash
	 * @param {PathData} data context data
	 * @returns {{ path: string, info: AssetInfo }} interpolated path and asset info
	 */
	getAssetPathWithInfo(filename, data) {
		const assetInfo = {};
		// TODO webpack 5: refactor assetPath hook to receive { path, info } object
		const newPath = this.hooks.assetPath.call(
			typeof filename === "function" ? filename(data, assetInfo) : filename,
			data,
			assetInfo
		);
		return { path: newPath, info: assetInfo };
	}

getWarnings() {
		return this.hooks.processWarnings.call(this.warnings);
	}

getErrors() {
		return this.hooks.processErrors.call(this.errors);
	}

/**
	 * This function allows you to run another instance of webpack inside of webpack however as
	 * a child with different settings and configurations (if desired) applied. It copies all hooks, plugins
	 * from parent (or top level compiler) and creates a child Compilation
	 *
	 * @param {string} name name of the child compiler
	 * @param {OutputOptions=} outputOptions // Need to convert config schema to types for this
	 * @param {Array<WebpackPluginInstance | WebpackPluginFunction>=} plugins webpack plugins that will be applied
	 * @returns {Compiler} creates a child Compiler instance
	 */
	createChildCompiler(name, outputOptions, plugins) {
		const idx = this.childrenCounters[name] || 0;
		this.childrenCounters[name] = idx + 1;
		return this.compiler.createChildCompiler(
			this,
			name,
			idx,
			outputOptions,
			plugins
		);
	}

/**
	 * @param {Module} module the module
	 * @param {ExecuteModuleOptions} options options
	 * @param {ExecuteModuleCallback} callback callback
	 */
	executeModule(module, options, callback) {
		// Aggregate all referenced modules and ensure they are ready
		const modules = new Set([module]);
		processAsyncTree(
			modules,
			10,
			/**
			 * @param {Module} module the module
			 * @param {function(Module): void} push push more jobs
			 * @param {Callback} callback callback
			 * @returns {void}
			 */
			(module, push, callback) => {
				this.buildQueue.waitFor(module, err => {
					if (err) return callback(err);
					this.processDependenciesQueue.waitFor(module, err => {
						if (err) return callback(err);
						for (const { module: m } of this.moduleGraph.getOutgoingConnections(
							module
						)) {
							const size = modules.size;
							modules.add(m);
							if (modules.size !== size) push(m);
						}
						callback();
					});
				});
			},
			err => {
				if (err) return callback(err);

// Create new chunk graph, chunk and entrypoint for the build time execution
				const chunkGraph = new ChunkGraph(
					this.moduleGraph,
					this.outputOptions.hashFunction
				);
				const runtime = "build time";
				const { hashFunction, hashDigest, hashDigestLength } =
					this.outputOptions;
				const runtimeTemplate = this.runtimeTemplate;

const chunk = new Chunk("build time chunk", this._backCompat);
				chunk.id = chunk.name;
				chunk.ids = [chunk.id];
				chunk.runtime = runtime;

const entrypoint = new Entrypoint({
					runtime,
					chunkLoading: false,
					...options.entryOptions
				});
				chunkGraph.connectChunkAndEntryModule(chunk, module, entrypoint);
				connectChunkGroupAndChunk(entrypoint, chunk);
				entrypoint.setRuntimeChunk(chunk);
				entrypoint.setEntrypointChunk(chunk);

const chunks = new Set([chunk]);

// Assign ids to modules and modules to the chunk
				for (const module of modules) {
					const id = module.identifier();
					chunkGraph.setModuleId(module, id);
					chunkGraph.connectChunkAndModule(chunk, module);
				}

// Hash modules
				for (const module of modules) {
					this._createModuleHash(
						module,
						chunkGraph,
						runtime,
						hashFunction,
						runtimeTemplate,
						hashDigest,
						hashDigestLength
					);
				}

// Generate code for all aggregated modules
				asyncLib.eachLimit(modules, 10, codeGen, err => {
					if (err) return callback(err);
					reportErrors();

// for backward-compat temporary set the chunk graph
					// TODO webpack 6
					const old = this.chunkGraph;
					this.chunkGraph = chunkGraph;
					this.processRuntimeRequirements({
						chunkGraph,
						modules,
						chunks,
						codeGenerationResults,
						chunkGraphEntries: chunks
					});
					this.chunkGraph = old;

const runtimeModules =
						chunkGraph.getChunkRuntimeModulesIterable(chunk);

// Hash runtime modules
					for (const module of runtimeModules) {
						modules.add(module);
						this._createModuleHash(
							module,
							chunkGraph,
							runtime,
							hashFunction,
							runtimeTemplate,
							hashDigest,
							hashDigestLength
						);
					}

// Generate code for all runtime modules
					asyncLib.eachLimit(runtimeModules, 10, codeGen, err => {
						if (err) return callback(err);
						reportErrors();

/** @type {Map<Module, ExecuteModuleArgument>} */
						const moduleArgumentsMap = new Map();
						/** @type {Map<string, ExecuteModuleArgument>} */
						const moduleArgumentsById = new Map();

/** @type {ExecuteModuleResult["fileDependencies"]} */
						const fileDependencies = new LazySet();
						/** @type {ExecuteModuleResult["contextDependencies"]} */
						const contextDependencies = new LazySet();
						/** @type {ExecuteModuleResult["missingDependencies"]} */
						const missingDependencies = new LazySet();
						/** @type {ExecuteModuleResult["buildDependencies"]} */
						const buildDependencies = new LazySet();

/** @type {ExecuteModuleResult["assets"]} */
						const assets = new Map();

let cacheable = true;

/** @type {ExecuteModuleContext} */
						const context = {
							assets,
							__webpack_require__: undefined,
							chunk,
							chunkGraph
						};

// Prepare execution
						asyncLib.eachLimit(
							modules,
							10,
							(module, callback) => {
								const codeGenerationResult = codeGenerationResults.get(
									module,
									runtime
								);
								/** @type {ExecuteModuleArgument} */
								const moduleArgument = {
									module,
									codeGenerationResult,
									preparedInfo: undefined,
									moduleObject: undefined
								};
								moduleArgumentsMap.set(module, moduleArgument);
								moduleArgumentsById.set(module.identifier(), moduleArgument);
								module.addCacheDependencies(
									fileDependencies,
									contextDependencies,
									missingDependencies,
									buildDependencies
								);
								if (module.buildInfo.cacheable === false) {
									cacheable = false;
								}
								if (module.buildInfo && module.buildInfo.assets) {
									const { assets: moduleAssets, assetsInfo } = module.buildInfo;
									for (const assetName of Object.keys(moduleAssets)) {
										assets.set(assetName, {
											source: moduleAssets[assetName],
											info: assetsInfo ? assetsInfo.get(assetName) : undefined
										});
									}
								}
								this.hooks.prepareModuleExecution.callAsync(
									moduleArgument,
									context,
									callback
								);
							},
							err => {
								if (err) return callback(err);

let exports;
								try {
									const {
										strictModuleErrorHandling,
										strictModuleExceptionHandling
									} = this.outputOptions;
									const __webpack_require__ = id => {
										const cached = moduleCache[id];
										if (cached !== undefined) {
											if (cached.error) throw cached.error;
											return cached.exports;
										}
										const moduleArgument = moduleArgumentsById.get(id);
										return __webpack_require_module__(moduleArgument, id);
									};
									const interceptModuleExecution = (__webpack_require__[
										RuntimeGlobals.interceptModuleExecution.replace(
											"__webpack_require__.",
											""
										)
									] = []);
									const moduleCache = (__webpack_require__[
										RuntimeGlobals.moduleCache.replace(
											"__webpack_require__.",
											""
										)
									] = {});

context.__webpack_require__ = __webpack_require__;

/**
									 * @param {ExecuteModuleArgument} moduleArgument the module argument
									 * @param {string=} id id
									 * @returns {any} exports
									 */
									const __webpack_require_module__ = (moduleArgument, id) => {
										var execOptions = {
											id,
											module: {
												id,
												exports: {},
												loaded: false,
												error: undefined
											},
											require: __webpack_require__
										};
										interceptModuleExecution.forEach(handler =>
											handler(execOptions)
										);
										const module = moduleArgument.module;
										this.buildTimeExecutedModules.add(module);
										const moduleObject = execOptions.module;
										moduleArgument.moduleObject = moduleObject;
										try {
											if (id) moduleCache[id] = moduleObject;

tryRunOrWebpackError(
												() =>
													this.hooks.executeModule.call(
														moduleArgument,
														context
													),
												"Compilation.hooks.executeModule"
											);
											moduleObject.loaded = true;
											return moduleObject.exports;
										} catch (e) {
											if (strictModuleExceptionHandling) {
												if (id) delete moduleCache[id];
											} else if (strictModuleErrorHandling) {
												moduleObject.error = e;
											}
											if (!e.module) e.module = module;
											throw e;
										}
									};

for (const runtimeModule of chunkGraph.getChunkRuntimeModulesInOrder(
										chunk
									)) {
										__webpack_require_module__(
											moduleArgumentsMap.get(runtimeModule)
										);
									}
									exports = __webpack_require__(module.identifier());
								} catch (e) {
									const err = new WebpackError(
										`Execution of module code from module graph (${module.readableIdentifier(
											this.requestShortener
										)}) failed: ${e.message}`
									);
									err.stack = e.stack;
									err.module = e.module;
									return callback(err);
								}

callback(null, {
									exports,
									assets,
									cacheable,
									fileDependencies,
									contextDependencies,
									missingDependencies,
									buildDependencies
								});
							}
						);
					});
				});
			}
		);
	}

checkConstraints() {
		const chunkGraph = this.chunkGraph;

/** @type {Set<number|string>} */
		const usedIds = new Set();

for (const module of this.modules) {
			if (module.type === "runtime") continue;
			const moduleId = chunkGraph.getModuleId(module);
			if (moduleId === null) continue;
			if (usedIds.has(moduleId)) {
				throw new Error(`checkConstraints: duplicate module id ${moduleId}`);
			}
			usedIds.add(moduleId);
		}

for (const chunk of this.chunks) {
			for (const module of chunkGraph.getChunkModulesIterable(chunk)) {
				if (!this.modules.has(module)) {
					throw new Error(
						"checkConstraints: module in chunk but not in compilation " +
							` ${chunk.debugId} ${module.debugId}`
					);
				}
			}
			for (const module of chunkGraph.getChunkEntryModulesIterable(chunk)) {
				if (!this.modules.has(module)) {
					throw new Error(
						"checkConstraints: entry module in chunk but not in compilation " +
							` ${chunk.debugId} ${module.debugId}`
					);
				}
			}
		}

for (const chunkGroup of this.chunkGroups) {
			chunkGroup.checkConstraints();
		}
	}
}

/**
 * @typedef {Object} FactorizeModuleOptions
 * @property {ModuleProfile} currentProfile
 * @property {ModuleFactory} factory
 * @property {Dependency[]} dependencies
 * @property {boolean=} factoryResult return full ModuleFactoryResult instead of only module
 * @property {Module | null} originModule
 * @property {Partial<ModuleFactoryCreateDataContextInfo>=} contextInfo
 * @property {string=} context
 */

/**
 * @param {FactorizeModuleOptions} options options object
 * @param {ModuleCallback | ModuleFactoryResultCallback} callback callback
 * @returns {void}
 */

// Workaround for typescript as it doesn't support function overloading in jsdoc within a class
Compilation.prototype.factorizeModule = /** @type {{
	(options: FactorizeModuleOptions & { factoryResult?: false }, callback: ModuleCallback): void;
	(options: FactorizeModuleOptions & { factoryResult: true }, callback: ModuleFactoryResultCallback): void;
}} */ (
	function (options, callback) {
		this.factorizeQueue.add(options, callback);
	}
);

// Hide from typescript
const compilationPrototype = Compilation.prototype;

// TODO webpack 6 remove
Object.defineProperty(compilationPrototype, "modifyHash", {
	writable: false,
	enumerable: false,
	configurable: false,
	value: () => {
		throw new Error(
			"Compilation.modifyHash was removed in favor of Compilation.hooks.fullHash"
		);
	}
});

// TODO webpack 6 remove
Object.defineProperty(compilationPrototype, "cache", {
	enumerable: false,
	configurable: false,
	get: util.deprecate(
		/**
		 * @this {Compilation} the compilation
		 * @returns {Cache} the cache
		 */
		function () {
			return this.compiler.cache;
		},
		"Compilation.cache was removed in favor of Compilation.getCache()",
		"DEP_WEBPACK_COMPILATION_CACHE"
	),
	set: util.deprecate(
		v => {},
		"Compilation.cache was removed in favor of Compilation.getCache()",
		"DEP_WEBPACK_COMPILATION_CACHE"
	)
});

/**
 * Add additional assets to the compilation.
 */
Compilation.PROCESS_ASSETS_STAGE_ADDITIONAL = -2000;

/**
 * Basic preprocessing of assets.
 */
Compilation.PROCESS_ASSETS_STAGE_PRE_PROCESS = -1000;

/**
 * Derive new assets from existing assets.
 * Existing assets should not be treated as complete.
 */
Compilation.PROCESS_ASSETS_STAGE_DERIVED = -200;

/**
 * Add additional sections to existing assets, like a banner or initialization code.
 */
Compilation.PROCESS_ASSETS_STAGE_ADDITIONS = -100;

/**
 * Optimize existing assets in a general way.
 */
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE = 100;

/**
 * Optimize the count of existing assets, e. g. by merging them.
 * Only assets of the same type should be merged.
 * For assets of different types see PROCESS_ASSETS_STAGE_OPTIMIZE_INLINE.
 */
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_COUNT = 200;

/**
 * Optimize the compatibility of existing assets, e. g. add polyfills or vendor-prefixes.
 */
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_COMPATIBILITY = 300;

/**
 * Optimize the size of existing assets, e. g. by minimizing or omitting whitespace.
 */
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_SIZE = 400;

/**
 * Add development tooling to assets, e. g. by extracting a SourceMap.
 */
Compilation.PROCESS_ASSETS_STAGE_DEV_TOOLING = 500;

/**
 * Optimize the count of existing assets, e. g. by inlining assets of into other assets.
 * Only assets of different types should be inlined.
 * For assets of the same type see PROCESS_ASSETS_STAGE_OPTIMIZE_COUNT.
 */
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_INLINE = 700;

/**
 * Summarize the list of existing assets
 * e. g. creating an assets manifest of Service Workers.
 */
Compilation.PROCESS_ASSETS_STAGE_SUMMARIZE = 1000;

/**
 * Optimize the hashes of the assets, e. g. by generating real hashes of the asset content.
 */
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_HASH = 2500;

/**
 * Optimize the transfer of existing assets, e. g. by preparing a compressed (gzip) file as separate asset.
 */
Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_TRANSFER = 3000;

/**
 * Analyse existing assets.
 */
Compilation.PROCESS_ASSETS_STAGE_ANALYSE = 4000;

/**
 * Creating assets for reporting purposes.
 */
Compilation.PROCESS_ASSETS_STAGE_REPORT = 5000;

module.exports = Compilation;

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