FM / lib

/var/www/flurhymez/node_modules/webpack/lib/

/var/www/flurhymez/node_modules/webpack/lib

Name	Size	Mode	Actions
asset/	-	0755	rm
async-modules/	-	0755	rm
cache/	-	0755	rm
config/	-	0755	rm
container/	-	0755	rm
debug/	-	0755	rm
dependencies/	-	0755	rm
electron/	-	0755	rm
errors/	-	0755	rm
esm/	-	0755	rm
hmr/	-	0755	rm
ids/	-	0755	rm
javascript/	-	0755	rm
json/	-	0755	rm
library/	-	0755	rm
logging/	-	0755	rm
node/	-	0755	rm
optimize/	-	0755	rm
performance/	-	0755	rm
prefetch/	-	0755	rm
rules/	-	0755	rm
runtime/	-	0755	rm
schemes/	-	0755	rm
serialization/	-	0755	rm
sharing/	-	0755	rm
stats/	-	0755	rm
util/	-	0755	rm
wasm/	-	0755	rm
wasm-async/	-	0755	rm
wasm-sync/	-	0755	rm
web/	-	0755	rm
webworker/	-	0755	rm
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APIPlugin.js	5835	0644	edit dl rm
AsyncDependenciesBlock.js	2930	0644	edit dl rm
AsyncDependencyToInitialChunkError.js	913	0644	edit dl rm
AutomaticPrefetchPlugin.js	1491	0644	edit dl rm
BannerPlugin.js	2755	0644	edit dl rm
buildChunkGraph.js	44463	0644	edit dl rm
Cache.js	3967	0644	edit dl rm
CacheFacade.js	8676	0644	edit dl rm
CaseSensitiveModulesWarning.js	2106	0644	edit dl rm
Chunk.js	21501	0644	edit dl rm
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ChunkRenderError.js	657	0644	edit dl rm
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cli.js	15619	0644	edit dl rm
CodeGenerationError.js	619	0644	edit dl rm
CodeGenerationResults.js	4463	0644	edit dl rm
CommentCompilationWarning.js	729	0644	edit dl rm
CompatibilityPlugin.js	4645	0644	edit dl rm
Compilation.js	159031	0644	edit dl rm
Compiler.js	34663	0644	edit dl rm
ConcatenationScope.js	4636	0644	edit dl rm
ConcurrentCompilationError.js	441	0644	edit dl rm
ConditionalInitFragment.js	3445	0644	edit dl rm
ConstPlugin.js	14769	0644	edit dl rm
ContextExclusionPlugin.js	797	0644	edit dl rm
ContextModule.js	32377	0644	edit dl rm
ContextModuleFactory.js	11185	0644	edit dl rm
ContextReplacementPlugin.js	4720	0644	edit dl rm
DefinePlugin.js	16671	0644	edit dl rm
DelegatedModule.js	7237	0644	edit dl rm
DelegatedModuleFactoryPlugin.js	2337	0644	edit dl rm
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DependenciesBlock.js	2589	0644	edit dl rm
Dependency.js	9338	0644	edit dl rm
DependencyTemplate.js	2094	0644	edit dl rm
DependencyTemplates.js	1716	0644	edit dl rm
DllEntryPlugin.js	1277	0644	edit dl rm
DllModule.js	4493	0644	edit dl rm
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DllPlugin.js	1702	0644	edit dl rm
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Entrypoint.js	3025	0644	edit dl rm
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ErrorHelpers.js	1454	0644	edit dl rm
EvalDevToolModulePlugin.js	3296	0644	edit dl rm
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ExportsInfo.js	43994	0644	edit dl rm
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ExternalModule.js	21521	0644	edit dl rm
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ExternalsPlugin.js	899	0644	edit dl rm
FileSystemInfo.js	103021	0644	edit dl rm
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GraphHelpers.js	1074	0644	edit dl rm
HarmonyLinkingError.js	357	0644	edit dl rm
HookWebpackError.js	2070	0644	edit dl rm
HotModuleReplacementPlugin.js	26338	0644	edit dl rm
HotUpdateChunk.js	353	0644	edit dl rm
IgnoreErrorModuleFactory.js	1048	0644	edit dl rm
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index.js	15926	0644	edit dl rm
InitFragment.js	4647	0644	edit dl rm
InvalidDependenciesModuleWarning.js	1874	0644	edit dl rm
JavascriptMetaInfoPlugin.js	2079	0644	edit dl rm
LibManifestPlugin.js	3116	0644	edit dl rm
LibraryTemplatePlugin.js	1588	0644	edit dl rm
LoaderOptionsPlugin.js	1857	0644	edit dl rm
LoaderTargetPlugin.js	747	0644	edit dl rm
MainTemplate.js	10391	0644	edit dl rm
Module.js	29686	0644	edit dl rm
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ModuleInfoHeaderPlugin.js	7174	0644	edit dl rm
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MultiCompiler.js	16038	0644	edit dl rm
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Stats.js	2003	0644	edit dl rm
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webpack.js	5085	0644	edit dl rm
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Edit: /var/www/flurhymez/node_modules/webpack/lib/Compiler.js (34663B)

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

"use strict";

/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../declarations/WebpackOptions").EntryNormalized} Entry */
/** @typedef {import("../declarations/WebpackOptions").OutputNormalized} OutputOptions */
/** @typedef {import("../declarations/WebpackOptions").WatchOptions} WatchOptions */
/** @typedef {import("../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("../declarations/WebpackOptions").WebpackPluginInstance} WebpackPluginInstance */
/** @typedef {import("./Chunk")} Chunk */
/** @typedef {import("./Dependency")} Dependency */
/** @typedef {import("./FileSystemInfo").FileSystemInfoEntry} FileSystemInfoEntry */
/** @typedef {import("./Module")} Module */
/** @typedef {import("./util/WeakTupleMap")} WeakTupleMap */
/** @typedef {import("./util/fs").InputFileSystem} InputFileSystem */
/** @typedef {import("./util/fs").IntermediateFileSystem} IntermediateFileSystem */
/** @typedef {import("./util/fs").OutputFileSystem} OutputFileSystem */
/** @typedef {import("./util/fs").WatchFileSystem} WatchFileSystem */

/**
 * @typedef {Object} CompilationParams
 * @property {NormalModuleFactory} normalModuleFactory
 * @property {ContextModuleFactory} contextModuleFactory
 */

/**
 * @template T
 * @callback Callback
 * @param {Error=} err
 * @param {T=} result
 */

/**
 * @callback RunAsChildCallback
 * @param {Error=} err
 * @param {Chunk[]=} entries
 * @param {Compilation=} compilation
 */

/**
 * @typedef {Object} AssetEmittedInfo
 * @property {Buffer} content
 * @property {Source} source
 * @property {Compilation} compilation
 * @property {string} outputPath
 * @property {string} targetPath
 */

/**
 * @param {string[]} array an array
 * @returns {boolean} true, if the array is sorted
 */
const isSorted = array => {
	for (let i = 1; i < array.length; i++) {
		if (array[i - 1] > array[i]) return false;
	}
	return true;
};

/**
 * @param {Object} obj an object
 * @param {string[]} keys the keys of the object
 * @returns {Object} the object with properties sorted by property name
 */
const sortObject = (obj, keys) => {
	const o = {};
	for (const k of keys.sort()) {
		o[k] = obj[k];
	}
	return o;
};

/**
 * @param {string} filename filename
 * @param {string | string[] | undefined} hashes list of hashes
 * @returns {boolean} true, if the filename contains any hash
 */
const includesHash = (filename, hashes) => {
	if (!hashes) return false;
	if (Array.isArray(hashes)) {
		return hashes.some(hash => filename.includes(hash));
	} else {
		return filename.includes(hashes);
	}
};

class Compiler {
	/**
	 * @param {string} context the compilation path
	 * @param {WebpackOptions} options options
	 */
	constructor(context, options = /** @type {WebpackOptions} */ ({})) {
		this.hooks = Object.freeze({
			/** @type {SyncHook<[]>} */
			initialize: new SyncHook([]),

/** @type {SyncBailHook<[Compilation], boolean>} */
			shouldEmit: new SyncBailHook(["compilation"]),
			/** @type {AsyncSeriesHook<[Stats]>} */
			done: new AsyncSeriesHook(["stats"]),
			/** @type {SyncHook<[Stats]>} */
			afterDone: new SyncHook(["stats"]),
			/** @type {AsyncSeriesHook<[]>} */
			additionalPass: new AsyncSeriesHook([]),
			/** @type {AsyncSeriesHook<[Compiler]>} */
			beforeRun: new AsyncSeriesHook(["compiler"]),
			/** @type {AsyncSeriesHook<[Compiler]>} */
			run: new AsyncSeriesHook(["compiler"]),
			/** @type {AsyncSeriesHook<[Compilation]>} */
			emit: new AsyncSeriesHook(["compilation"]),
			/** @type {AsyncSeriesHook<[string, AssetEmittedInfo]>} */
			assetEmitted: new AsyncSeriesHook(["file", "info"]),
			/** @type {AsyncSeriesHook<[Compilation]>} */
			afterEmit: new AsyncSeriesHook(["compilation"]),

/** @type {SyncHook<[Compilation, CompilationParams]>} */
			thisCompilation: new SyncHook(["compilation", "params"]),
			/** @type {SyncHook<[Compilation, CompilationParams]>} */
			compilation: new SyncHook(["compilation", "params"]),
			/** @type {SyncHook<[NormalModuleFactory]>} */
			normalModuleFactory: new SyncHook(["normalModuleFactory"]),
			/** @type {SyncHook<[ContextModuleFactory]>}  */
			contextModuleFactory: new SyncHook(["contextModuleFactory"]),

/** @type {AsyncSeriesHook<[CompilationParams]>} */
			beforeCompile: new AsyncSeriesHook(["params"]),
			/** @type {SyncHook<[CompilationParams]>} */
			compile: new SyncHook(["params"]),
			/** @type {AsyncParallelHook<[Compilation]>} */
			make: new AsyncParallelHook(["compilation"]),
			/** @type {AsyncParallelHook<[Compilation]>} */
			finishMake: new AsyncSeriesHook(["compilation"]),
			/** @type {AsyncSeriesHook<[Compilation]>} */
			afterCompile: new AsyncSeriesHook(["compilation"]),

/** @type {AsyncSeriesHook<[Compiler]>} */
			watchRun: new AsyncSeriesHook(["compiler"]),
			/** @type {SyncHook<[Error]>} */
			failed: new SyncHook(["error"]),
			/** @type {SyncHook<[string | null, number]>} */
			invalid: new SyncHook(["filename", "changeTime"]),
			/** @type {SyncHook<[]>} */
			watchClose: new SyncHook([]),
			/** @type {AsyncSeriesHook<[]>} */
			shutdown: new AsyncSeriesHook([]),

/** @type {SyncBailHook<[string, string, any[]], true>} */
			infrastructureLog: new SyncBailHook(["origin", "type", "args"]),

// TODO the following hooks are weirdly located here
			// TODO move them for webpack 5
			/** @type {SyncHook<[]>} */
			environment: new SyncHook([]),
			/** @type {SyncHook<[]>} */
			afterEnvironment: new SyncHook([]),
			/** @type {SyncHook<[Compiler]>} */
			afterPlugins: new SyncHook(["compiler"]),
			/** @type {SyncHook<[Compiler]>} */
			afterResolvers: new SyncHook(["compiler"]),
			/** @type {SyncBailHook<[string, Entry], boolean>} */
			entryOption: new SyncBailHook(["context", "entry"])
		});

this.webpack = webpack;

/** @type {string=} */
		this.name = undefined;
		/** @type {Compilation=} */
		this.parentCompilation = undefined;
		/** @type {Compiler} */
		this.root = this;
		/** @type {string} */
		this.outputPath = "";
		/** @type {Watching} */
		this.watching = undefined;

/** @type {OutputFileSystem} */
		this.outputFileSystem = null;
		/** @type {IntermediateFileSystem} */
		this.intermediateFileSystem = null;
		/** @type {InputFileSystem} */
		this.inputFileSystem = null;
		/** @type {WatchFileSystem} */
		this.watchFileSystem = null;

/** @type {string|null} */
		this.recordsInputPath = null;
		/** @type {string|null} */
		this.recordsOutputPath = null;
		this.records = {};
		/** @type {Set<string | RegExp>} */
		this.managedPaths = new Set();
		/** @type {Set<string | RegExp>} */
		this.immutablePaths = new Set();

/** @type {ReadonlySet<string>} */
		this.modifiedFiles = undefined;
		/** @type {ReadonlySet<string>} */
		this.removedFiles = undefined;
		/** @type {ReadonlyMap<string, FileSystemInfoEntry | "ignore" | null>} */
		this.fileTimestamps = undefined;
		/** @type {ReadonlyMap<string, FileSystemInfoEntry | "ignore" | null>} */
		this.contextTimestamps = undefined;
		/** @type {number} */
		this.fsStartTime = undefined;

/** @type {ResolverFactory} */
		this.resolverFactory = new ResolverFactory();

this.infrastructureLogger = undefined;

this.options = options;

this.context = context;

this.requestShortener = new RequestShortener(context, this.root);

this.cache = new Cache();

/** @type {Map<Module, { buildInfo: object, references: WeakMap<Dependency, Module>, memCache: WeakTupleMap }> | undefined} */
		this.moduleMemCaches = undefined;

this.compilerPath = "";

/** @type {boolean} */
		this.running = false;

/** @type {boolean} */
		this.idle = false;

/** @type {boolean} */
		this.watchMode = false;

this._backCompat = this.options.experiments.backCompat !== false;

/** @type {Compilation} */
		this._lastCompilation = undefined;
		/** @type {NormalModuleFactory} */
		this._lastNormalModuleFactory = undefined;

/** @private @type {WeakMap<Source, { sizeOnlySource: SizeOnlySource, writtenTo: Map<string, number> }>} */
		this._assetEmittingSourceCache = new WeakMap();
		/** @private @type {Map<string, number>} */
		this._assetEmittingWrittenFiles = new Map();
		/** @private @type {Set<string>} */
		this._assetEmittingPreviousFiles = new Set();
	}

/**
	 * @param {string} name cache name
	 * @returns {CacheFacade} the cache facade instance
	 */
	getCache(name) {
		return new CacheFacade(
			this.cache,
			`${this.compilerPath}${name}`,
			this.options.output.hashFunction
		);
	}

/**
	 * @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
	 */
	getInfrastructureLogger(name) {
		if (!name) {
			throw new TypeError(
				"Compiler.getInfrastructureLogger(name) called without a name"
			);
		}
		return new Logger(
			(type, args) => {
				if (typeof name === "function") {
					name = name();
					if (!name) {
						throw new TypeError(
							"Compiler.getInfrastructureLogger(name) called with a function not returning a name"
						);
					}
				}
				if (this.hooks.infrastructureLog.call(name, type, args) === undefined) {
					if (this.infrastructureLogger !== undefined) {
						this.infrastructureLogger(name, type, args);
					}
				}
			},
			childName => {
				if (typeof name === "function") {
					if (typeof childName === "function") {
						return this.getInfrastructureLogger(() => {
							if (typeof name === "function") {
								name = name();
								if (!name) {
									throw new TypeError(
										"Compiler.getInfrastructureLogger(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.getInfrastructureLogger(() => {
							if (typeof name === "function") {
								name = name();
								if (!name) {
									throw new TypeError(
										"Compiler.getInfrastructureLogger(name) called with a function not returning a name"
									);
								}
							}
							return `${name}/${childName}`;
						});
					}
				} else {
					if (typeof childName === "function") {
						return this.getInfrastructureLogger(() => {
							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.getInfrastructureLogger(`${name}/${childName}`);
					}
				}
			}
		);
	}

// TODO webpack 6: solve this in a better way
	// e.g. move compilation specific info from Modules into ModuleGraph
	_cleanupLastCompilation() {
		if (this._lastCompilation !== undefined) {
			for (const module of this._lastCompilation.modules) {
				ChunkGraph.clearChunkGraphForModule(module);
				ModuleGraph.clearModuleGraphForModule(module);
				module.cleanupForCache();
			}
			for (const chunk of this._lastCompilation.chunks) {
				ChunkGraph.clearChunkGraphForChunk(chunk);
			}
			this._lastCompilation = undefined;
		}
	}

// TODO webpack 6: solve this in a better way
	_cleanupLastNormalModuleFactory() {
		if (this._lastNormalModuleFactory !== undefined) {
			this._lastNormalModuleFactory.cleanupForCache();
			this._lastNormalModuleFactory = undefined;
		}
	}

/**
	 * @param {WatchOptions} watchOptions the watcher's options
	 * @param {Callback<Stats>} handler signals when the call finishes
	 * @returns {Watching} a compiler watcher
	 */
	watch(watchOptions, handler) {
		if (this.running) {
			return handler(new ConcurrentCompilationError());
		}

this.running = true;
		this.watchMode = true;
		this.watching = new Watching(this, watchOptions, handler);
		return this.watching;
	}

/**
	 * @param {Callback<Stats>} callback signals when the call finishes
	 * @returns {void}
	 */
	run(callback) {
		if (this.running) {
			return callback(new ConcurrentCompilationError());
		}

let logger;

const finalCallback = (err, stats) => {
			if (logger) logger.time("beginIdle");
			this.idle = true;
			this.cache.beginIdle();
			this.idle = true;
			if (logger) logger.timeEnd("beginIdle");
			this.running = false;
			if (err) {
				this.hooks.failed.call(err);
			}
			if (callback !== undefined) callback(err, stats);
			this.hooks.afterDone.call(stats);
		};

const startTime = Date.now();

this.running = true;

const onCompiled = (err, compilation) => {
			if (err) return finalCallback(err);

if (this.hooks.shouldEmit.call(compilation) === false) {
				compilation.startTime = startTime;
				compilation.endTime = Date.now();
				const stats = new Stats(compilation);
				this.hooks.done.callAsync(stats, err => {
					if (err) return finalCallback(err);
					return finalCallback(null, stats);
				});
				return;
			}

process.nextTick(() => {
				logger = compilation.getLogger("webpack.Compiler");
				logger.time("emitAssets");
				this.emitAssets(compilation, err => {
					logger.timeEnd("emitAssets");
					if (err) return finalCallback(err);

if (compilation.hooks.needAdditionalPass.call()) {
						compilation.needAdditionalPass = true;

this.hooks.additionalPass.callAsync(err => {
								if (err) return finalCallback(err);
								this.compile(onCompiled);
							});
						});
						return;
					}

logger.time("emitRecords");
					this.emitRecords(err => {
						logger.timeEnd("emitRecords");
						if (err) return finalCallback(err);

compilation.startTime = startTime;
						compilation.endTime = Date.now();
						logger.time("done hook");
						const stats = new Stats(compilation);
						this.hooks.done.callAsync(stats, err => {
							logger.timeEnd("done hook");
							if (err) return finalCallback(err);
							this.cache.storeBuildDependencies(
								compilation.buildDependencies,
								err => {
									if (err) return finalCallback(err);
									return finalCallback(null, stats);
								}
							);
						});
					});
				});
			});
		};

const run = () => {
			this.hooks.beforeRun.callAsync(this, err => {
				if (err) return finalCallback(err);

this.hooks.run.callAsync(this, err => {
					if (err) return finalCallback(err);

this.readRecords(err => {
						if (err) return finalCallback(err);

this.compile(onCompiled);
					});
				});
			});
		};

if (this.idle) {
			this.cache.endIdle(err => {
				if (err) return finalCallback(err);

this.idle = false;
				run();
			});
		} else {
			run();
		}
	}

/**
	 * @param {RunAsChildCallback} callback signals when the call finishes
	 * @returns {void}
	 */
	runAsChild(callback) {
		const startTime = Date.now();
		this.compile((err, compilation) => {
			if (err) return callback(err);

this.parentCompilation.children.push(compilation);
			for (const { name, source, info } of compilation.getAssets()) {
				this.parentCompilation.emitAsset(name, source, info);
			}

const entries = [];
			for (const ep of compilation.entrypoints.values()) {
				entries.push(...ep.chunks);
			}

compilation.startTime = startTime;
			compilation.endTime = Date.now();

return callback(null, entries, compilation);
		});
	}

purgeInputFileSystem() {
		if (this.inputFileSystem && this.inputFileSystem.purge) {
			this.inputFileSystem.purge();
		}
	}

/**
	 * @param {Compilation} compilation the compilation
	 * @param {Callback<void>} callback signals when the assets are emitted
	 * @returns {void}
	 */
	emitAssets(compilation, callback) {
		let outputPath;

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

const writeOut = err => {
						if (err) return callback(err);
						const targetPath = join(
							this.outputFileSystem,
							outputPath,
							targetFile
						);
						allTargetPaths.add(targetPath);

// check if the target file has already been written by this Compiler
						const targetFileGeneration =
							this._assetEmittingWrittenFiles.get(targetPath);

// create an cache entry for this Source if not already existing
						let cacheEntry = this._assetEmittingSourceCache.get(source);
						if (cacheEntry === undefined) {
							cacheEntry = {
								sizeOnlySource: undefined,
								writtenTo: new Map()
							};
							this._assetEmittingSourceCache.set(source, cacheEntry);
						}

let similarEntry;

/**
						 * get the binary (Buffer) content from the Source
						 * @returns {Buffer} content for the source
						 */
						const getContent = () => {
							if (typeof source.buffer === "function") {
								return source.buffer();
							} else {
								const bufferOrString = source.source();
								if (Buffer.isBuffer(bufferOrString)) {
									return bufferOrString;
								} else {
									return Buffer.from(bufferOrString, "utf8");
								}
							}
						};

/**
						 * Write the file to output file system
						 * @param {Buffer} content content to be written
						 * @returns {void}
						 */
						const doWrite = content => {
							this.outputFileSystem.writeFile(targetPath, content, err => {
								if (err) return callback(err);

// information marker that the asset has been emitted
								compilation.emittedAssets.add(file);

// cache the information that the Source has been written to that location
								const newGeneration =
									targetFileGeneration === undefined
										? 1
										: targetFileGeneration + 1;
								cacheEntry.writtenTo.set(targetPath, newGeneration);
								this._assetEmittingWrittenFiles.set(targetPath, newGeneration);
								this.hooks.assetEmitted.callAsync(
									file,
									{
										content,
										source,
										outputPath,
										compilation,
										targetPath
									},
									callback
								);
							});
						};

const processExistingFile = stats => {
							// skip emitting if it's already there and an immutable file
							if (immutable) {
								updateWithReplacementSource(stats.size);
								return alreadyWritten();
							}

const content = getContent();

updateWithReplacementSource(content.length);

// if it exists and content on disk matches content
							// skip writing the same content again
							// (to keep mtime and don't trigger watchers)
							// for a fast negative match file size is compared first
							if (content.length === stats.size) {
								compilation.comparedForEmitAssets.add(file);
								return this.outputFileSystem.readFile(
									targetPath,
									(err, existingContent) => {
										if (
											err ||
											!content.equals(/** @type {Buffer} */ (existingContent))
										) {
											return doWrite(content);
										} else {
											return alreadyWritten();
										}
									}
								);
							}

return doWrite(content);
						};

const processMissingFile = () => {
							const content = getContent();

updateWithReplacementSource(content.length);

return doWrite(content);
						};

// if the target file has already been written
						if (targetFileGeneration !== undefined) {
							// check if the Source has been written to this target file
							const writtenGeneration = cacheEntry.writtenTo.get(targetPath);
							if (writtenGeneration === targetFileGeneration) {
								// if yes, we may skip writing the file
								// if it's already there
								// (we assume one doesn't modify files while the Compiler is running, other then removing them)

if (this._assetEmittingPreviousFiles.has(targetPath)) {
									// We assume that assets from the last compilation say intact on disk (they are not removed)
									compilation.updateAsset(file, cacheEntry.sizeOnlySource, {
										size: cacheEntry.sizeOnlySource.size()
									});

return callback();
								} else {
									// Settings immutable will make it accept file content without comparing when file exist
									immutable = true;
								}
							} else if (!immutable) {
								if (checkSimilarFile()) return;
								// We wrote to this file before which has very likely a different content
								// skip comparing and assume content is different for performance
								// This case happens often during watch mode.
								return processMissingFile();
							}
						}

if (checkSimilarFile()) return;
						if (this.options.output.compareBeforeEmit) {
							this.outputFileSystem.stat(targetPath, (err, stats) => {
								const exists = !err && stats.isFile();

if (exists) {
									processExistingFile(stats);
								} else {
									processMissingFile();
								}
							});
						} else {
							processMissingFile();
						}
					};

if (targetFile.match(/\/|\\/)) {
						const fs = this.outputFileSystem;
						const dir = dirname(fs, join(fs, outputPath, targetFile));
						mkdirp(fs, dir, writeOut);
					} else {
						writeOut();
					}
				},
				err => {
					// Clear map to free up memory
					caseInsensitiveMap.clear();
					if (err) {
						this._assetEmittingPreviousFiles.clear();
						return callback(err);
					}

this._assetEmittingPreviousFiles = allTargetPaths;

this.hooks.afterEmit.callAsync(compilation, err => {
						if (err) return callback(err);

return callback();
					});
				}
			);
		};

this.hooks.emit.callAsync(compilation, err => {
			if (err) return callback(err);
			outputPath = compilation.getPath(this.outputPath, {});
			mkdirp(this.outputFileSystem, outputPath, emitFiles);
		});
	}

/**
	 * @param {Callback<void>} callback signals when the call finishes
	 * @returns {void}
	 */
	emitRecords(callback) {
		if (!this.recordsOutputPath) return callback();

const recordsOutputPathDirectory = dirname(
			this.outputFileSystem,
			this.recordsOutputPath
		);
		if (!recordsOutputPathDirectory) {
			return writeFile();
		}
		mkdirp(this.outputFileSystem, recordsOutputPathDirectory, err => {
			if (err) return callback(err);
			writeFile();
		});
	}

/**
	 * @param {Callback<void>} callback signals when the call finishes
	 * @returns {void}
	 */
	readRecords(callback) {
		if (!this.recordsInputPath) {
			this.records = {};
			return callback();
		}
		this.inputFileSystem.stat(this.recordsInputPath, err => {
			// It doesn't exist
			// We can ignore this.
			if (err) return callback();

this.inputFileSystem.readFile(this.recordsInputPath, (err, content) => {
				if (err) return callback(err);

try {
					this.records = parseJson(content.toString("utf-8"));
				} catch (e) {
					e.message = "Cannot parse records: " + e.message;
					return callback(e);
				}

return callback();
			});
		});
	}

/**
	 * @param {Compilation} compilation the compilation
	 * @param {string} compilerName the compiler's name
	 * @param {number} compilerIndex the compiler's index
	 * @param {OutputOptions=} outputOptions the output options
	 * @param {WebpackPluginInstance[]=} plugins the plugins to apply
	 * @returns {Compiler} a child compiler
	 */
	createChildCompiler(
		compilation,
		compilerName,
		compilerIndex,
		outputOptions,
		plugins
	) {
		const childCompiler = new Compiler(this.context, {
			...this.options,
			output: {
				...this.options.output,
				...outputOptions
			}
		});
		childCompiler.name = compilerName;
		childCompiler.outputPath = this.outputPath;
		childCompiler.inputFileSystem = this.inputFileSystem;
		childCompiler.outputFileSystem = null;
		childCompiler.resolverFactory = this.resolverFactory;
		childCompiler.modifiedFiles = this.modifiedFiles;
		childCompiler.removedFiles = this.removedFiles;
		childCompiler.fileTimestamps = this.fileTimestamps;
		childCompiler.contextTimestamps = this.contextTimestamps;
		childCompiler.fsStartTime = this.fsStartTime;
		childCompiler.cache = this.cache;
		childCompiler.compilerPath = `${this.compilerPath}${compilerName}|${compilerIndex}|`;
		childCompiler._backCompat = this._backCompat;

childCompiler.parentCompilation = compilation;
		childCompiler.root = this.root;
		if (Array.isArray(plugins)) {
			for (const plugin of plugins) {
				plugin.apply(childCompiler);
			}
		}
		for (const name in this.hooks) {
			if (
				![
					"make",
					"compile",
					"emit",
					"afterEmit",
					"invalid",
					"done",
					"thisCompilation"
				].includes(name)
			) {
				if (childCompiler.hooks[name]) {
					childCompiler.hooks[name].taps = this.hooks[name].taps.slice();
				}
			}
		}

compilation.hooks.childCompiler.call(
			childCompiler,
			compilerName,
			compilerIndex
		);

return childCompiler;
	}

isChild() {
		return !!this.parentCompilation;
	}

createCompilation(params) {
		this._cleanupLastCompilation();
		return (this._lastCompilation = new Compilation(this, params));
	}

/**
	 * @param {CompilationParams} params the compilation parameters
	 * @returns {Compilation} the created compilation
	 */
	newCompilation(params) {
		const compilation = this.createCompilation(params);
		compilation.name = this.name;
		compilation.records = this.records;
		this.hooks.thisCompilation.call(compilation, params);
		this.hooks.compilation.call(compilation, params);
		return compilation;
	}

createNormalModuleFactory() {
		this._cleanupLastNormalModuleFactory();
		const normalModuleFactory = new NormalModuleFactory({
			context: this.options.context,
			fs: this.inputFileSystem,
			resolverFactory: this.resolverFactory,
			options: this.options.module,
			associatedObjectForCache: this.root,
			layers: this.options.experiments.layers
		});
		this._lastNormalModuleFactory = normalModuleFactory;
		this.hooks.normalModuleFactory.call(normalModuleFactory);
		return normalModuleFactory;
	}

createContextModuleFactory() {
		const contextModuleFactory = new ContextModuleFactory(this.resolverFactory);
		this.hooks.contextModuleFactory.call(contextModuleFactory);
		return contextModuleFactory;
	}

newCompilationParams() {
		const params = {
			normalModuleFactory: this.createNormalModuleFactory(),
			contextModuleFactory: this.createContextModuleFactory()
		};
		return params;
	}

/**
	 * @param {Callback<Compilation>} callback signals when the compilation finishes
	 * @returns {void}
	 */
	compile(callback) {
		const params = this.newCompilationParams();
		this.hooks.beforeCompile.callAsync(params, err => {
			if (err) return callback(err);

this.hooks.compile.call(params);

const compilation = this.newCompilation(params);

const logger = compilation.getLogger("webpack.Compiler");

logger.time("make hook");
			this.hooks.make.callAsync(compilation, err => {
				logger.timeEnd("make hook");
				if (err) return callback(err);

logger.time("finish make hook");
				this.hooks.finishMake.callAsync(compilation, err => {
					logger.timeEnd("finish make hook");
					if (err) return callback(err);

process.nextTick(() => {
						logger.time("finish compilation");
						compilation.finish(err => {
							logger.timeEnd("finish compilation");
							if (err) return callback(err);

logger.time("seal compilation");
							compilation.seal(err => {
								logger.timeEnd("seal compilation");
								if (err) return callback(err);

logger.time("afterCompile hook");
								this.hooks.afterCompile.callAsync(compilation, err => {
									logger.timeEnd("afterCompile hook");
									if (err) return callback(err);

return callback(null, compilation);
								});
							});
						});
					});
				});
			});
		});
	}

/**
	 * @param {Callback<void>} callback signals when the compiler closes
	 * @returns {void}
	 */
	close(callback) {
		if (this.watching) {
			// When there is still an active watching, close this first
			this.watching.close(err => {
				this.close(callback);
			});
			return;
		}
		this.hooks.shutdown.callAsync(err => {
			if (err) return callback(err);
			// Get rid of reference to last compilation to avoid leaking memory
			// We can't run this._cleanupLastCompilation() as the Stats to this compilation
			// might be still in use. We try to get rid of the reference to the cache instead.
			this._lastCompilation = undefined;
			this._lastNormalModuleFactory = undefined;
			this.cache.shutdown(callback);
		});
	}
}

module.exports = Compiler;

cmd: