update packages

1 files changed, 542 insertions, 556 deletions

diff --git a/node_modules/webpack/lib/NormalModule.js b/node_modules/webpack/lib/NormalModule.js
index c3288bf0d..fdabc3000 100644
--- a/node_modules/webpack/lib/NormalModule.js
+++ b/node_modules/webpack/lib/NormalModule.js
@@ -1,556 +1,542 @@
-/*

-	MIT License http://www.opensource.org/licenses/mit-license.php

-	Author Tobias Koppers @sokra

-*/

-"use strict";

-

-const path = require("path");

-const NativeModule = require("module");

-const crypto = require("crypto");

-

-const SourceMapSource = require("webpack-sources").SourceMapSource;

-const OriginalSource = require("webpack-sources").OriginalSource;

-const RawSource = require("webpack-sources").RawSource;

-const ReplaceSource = require("webpack-sources").ReplaceSource;

-const CachedSource = require("webpack-sources").CachedSource;

-const LineToLineMappedSource = require("webpack-sources").LineToLineMappedSource;

-

-const WebpackError = require("./WebpackError");

-const Module = require("./Module");

-const ModuleParseError = require("./ModuleParseError");

-const ModuleBuildError = require("./ModuleBuildError");

-const ModuleError = require("./ModuleError");

-const ModuleWarning = require("./ModuleWarning");

-

-const runLoaders = require("loader-runner").runLoaders;

-const getContext = require("loader-runner").getContext;

-

-function asString(buf) {

-	if(Buffer.isBuffer(buf)) {

-		return buf.toString("utf-8");

-	}

-	return buf;

-}

-

-function contextify(context, request) {

-	return request.split("!").map(function(r) {

-		const splitPath = r.split("?");

-		splitPath[0] = path.relative(context, splitPath[0]);

-		if(path.sep === "\\")

-			splitPath[0] = splitPath[0].replace(/\\/g, "/");

-		if(splitPath[0].indexOf("../") !== 0)

-			splitPath[0] = "./" + splitPath[0];

-		return splitPath.join("?");

-	}).join("!");

-}

-

-class NonErrorEmittedError extends WebpackError {

-	constructor(error) {

-		super();

-

-		this.name = "NonErrorEmittedError";

-		this.message = "(Emitted value instead of an instance of Error) " + error;

-

-		Error.captureStackTrace(this, this.constructor);

-	}

-}

-

-const dependencyTemplatesHashMap = new WeakMap();

-

-class NormalModule extends Module {

-

-	constructor(request, userRequest, rawRequest, loaders, resource, parser) {

-		super();

-		this.request = request;

-		this.userRequest = userRequest;

-		this.rawRequest = rawRequest;

-		this.parser = parser;

-		this.resource = resource;

-		this.context = getContext(resource);

-		this.loaders = loaders;

-		this.fileDependencies = [];

-		this.contextDependencies = [];

-		this.warnings = [];

-		this.errors = [];

-		this.error = null;

-		this._source = null;

-		this.assets = {};

-		this.built = false;

-		this._cachedSource = null;

-	}

-

-	identifier() {

-		return this.request;

-	}

-

-	readableIdentifier(requestShortener) {

-		return requestShortener.shorten(this.userRequest);

-	}

-

-	libIdent(options) {

-		return contextify(options.context, this.userRequest);

-	}

-

-	nameForCondition() {

-		const idx = this.resource.indexOf("?");

-		if(idx >= 0) return this.resource.substr(0, idx);

-		return this.resource;

-	}

-

-	createSourceForAsset(name, content, sourceMap) {

-		if(!sourceMap) {

-			return new RawSource(content);

-		}

-

-		if(typeof sourceMap === "string") {

-			return new OriginalSource(content, sourceMap);

-		}

-

-		return new SourceMapSource(content, name, sourceMap);

-	}

-

-	createLoaderContext(resolver, options, compilation, fs) {

-		const loaderContext = {

-			version: 2,

-			emitWarning: (warning) => {

-				if(!(warning instanceof Error))

-					warning = new NonErrorEmittedError(warning);

-				this.warnings.push(new ModuleWarning(this, warning));

-			},

-			emitError: (error) => {

-				if(!(error instanceof Error))

-					error = new NonErrorEmittedError(error);

-				this.errors.push(new ModuleError(this, error));

-			},

-			exec: (code, filename) => {

-				const module = new NativeModule(filename, this);

-				module.paths = NativeModule._nodeModulePaths(this.context);

-				module.filename = filename;

-				module._compile(code, filename);

-				return module.exports;

-			},

-			resolve(context, request, callback) {

-				resolver.resolve({}, context, request, callback);

-			},

-			resolveSync(context, request) {

-				return resolver.resolveSync({}, context, request);

-			},

-			emitFile: (name, content, sourceMap) => {

-				this.assets[name] = this.createSourceForAsset(name, content, sourceMap);

-			},

-			options: options,

-			webpack: true,

-			sourceMap: !!this.useSourceMap,

-			_module: this,

-			_compilation: compilation,

-			_compiler: compilation.compiler,

-			fs: fs,

-		};

-

-		compilation.applyPlugins("normal-module-loader", loaderContext, this);

-		if(options.loader)

-			Object.assign(loaderContext, options.loader);

-

-		return loaderContext;

-	}

-

-	createSource(source, resourceBuffer, sourceMap) {

-		// if there is no identifier return raw source

-		if(!this.identifier) {

-			return new RawSource(source);

-		}

-

-		// from here on we assume we have an identifier

-		const identifier = this.identifier();

-

-		if(this.lineToLine && resourceBuffer) {

-			return new LineToLineMappedSource(

-				source, identifier, asString(resourceBuffer));

-		}

-

-		if(this.useSourceMap && sourceMap) {

-			return new SourceMapSource(source, identifier, sourceMap);

-		}

-

-		return new OriginalSource(source, identifier);

-	}

-

-	doBuild(options, compilation, resolver, fs, callback) {

-		this.cacheable = false;

-		const loaderContext = this.createLoaderContext(resolver, options, compilation, fs);

-

-		runLoaders({

-			resource: this.resource,

-			loaders: this.loaders,

-			context: loaderContext,

-			readResource: fs.readFile.bind(fs)

-		}, (err, result) => {

-			if(result) {

-				this.cacheable = result.cacheable;

-				this.fileDependencies = result.fileDependencies;

-				this.contextDependencies = result.contextDependencies;

-			}

-

-			if(err) {

-				const error = new ModuleBuildError(this, err);

-				return callback(error);

-			}

-

-			const resourceBuffer = result.resourceBuffer;

-			const source = result.result[0];

-			const sourceMap = result.result[1];

-

-			if(!Buffer.isBuffer(source) && typeof source !== "string") {

-				const error = new ModuleBuildError(this, new Error("Final loader didn't return a Buffer or String"));

-				return callback(error);

-			}

-

-			this._source = this.createSource(asString(source), resourceBuffer, sourceMap);

-			return callback();

-		});

-	}

-

-	disconnect() {

-		this.built = false;

-		super.disconnect();

-	}

-

-	markModuleAsErrored(error) {

-		this.meta = null;

-		this.error = error;

-		this.errors.push(this.error);

-		this._source = new RawSource("throw new Error(" + JSON.stringify(this.error.message) + ");");

-	}

-

-	applyNoParseRule(rule, content) {

-		// must start with "rule" if rule is a string

-		if(typeof rule === "string") {

-			return content.indexOf(rule) === 0;

-		}

-

-		if(typeof rule === "function") {

-			return rule(content);

-		}

-		// we assume rule is a regexp

-		return rule.test(content);

-	}

-

-	// check if module should not be parsed

-	// returns "true" if the module should !not! be parsed

-	// returns "false" if the module !must! be parsed

-	shouldPreventParsing(noParseRule, request) {

-		// if no noParseRule exists, return false

-		// the module !must! be parsed.

-		if(!noParseRule) {

-			return false;

-		}

-

-		// we only have one rule to check

-		if(!Array.isArray(noParseRule)) {

-			// returns "true" if the module is !not! to be parsed

-			return this.applyNoParseRule(noParseRule, request);

-		}

-

-		for(let i = 0; i < noParseRule.length; i++) {

-			const rule = noParseRule[i];

-			// early exit on first truthy match

-			// this module is !not! to be parsed

-			if(this.applyNoParseRule(rule, request)) {

-				return true;

-			}

-		}

-		// no match found, so this module !should! be parsed

-		return false;

-	}

-

-	build(options, compilation, resolver, fs, callback) {

-		this.buildTimestamp = Date.now();

-		this.built = true;

-		this._source = null;

-		this.error = null;

-		this.errors.length = 0;

-		this.warnings.length = 0;

-		this.meta = {};

-

-		return this.doBuild(options, compilation, resolver, fs, (err) => {

-			this.dependencies.length = 0;

-			this.variables.length = 0;

-			this.blocks.length = 0;

-			this._cachedSource = null;

-

-			// if we have an error mark module as failed and exit

-			if(err) {

-				this.markModuleAsErrored(err);

-				return callback();

-			}

-

-			// check if this module should !not! be parsed.

-			// if so, exit here;

-			const noParseRule = options.module && options.module.noParse;

-			if(this.shouldPreventParsing(noParseRule, this.request)) {

-				return callback();

-			}

-

-			try {

-				this.parser.parse(this._source.source(), {

-					current: this,

-					module: this,

-					compilation: compilation,

-					options: options

-				});

-			} catch(e) {

-				const source = this._source.source();

-				const error = new ModuleParseError(this, source, e);

-				this.markModuleAsErrored(error);

-				return callback();

-			}

-			return callback();

-		});

-	}

-

-	getHashDigest(dependencyTemplates) {

-		let dtHash = dependencyTemplatesHashMap.get("hash");

-		const hash = crypto.createHash("md5");

-		this.updateHash(hash);

-		hash.update(`${dtHash}`);

-		return hash.digest("hex");

-	}

-

-	sourceDependency(dependency, dependencyTemplates, source, outputOptions, requestShortener) {

-		const template = dependencyTemplates.get(dependency.constructor);

-		if(!template) throw new Error("No template for dependency: " + dependency.constructor.name);

-		template.apply(dependency, source, outputOptions, requestShortener, dependencyTemplates);

-	}

-

-	sourceVariables(variable, availableVars, dependencyTemplates, outputOptions, requestShortener) {

-		const name = variable.name;

-		const expr = variable.expressionSource(dependencyTemplates, outputOptions, requestShortener);

-

-		if(availableVars.some(v => v.name === name && v.expression.source() === expr.source())) {

-			return;

-		}

-		return {

-			name: name,

-			expression: expr

-		};

-	}

-

-	/*

-	 * creates the start part of a IIFE around the module to inject a variable name

-	 * (function(...){   <- this part

-	 * }.call(...))

-	 */

-	variableInjectionFunctionWrapperStartCode(varNames) {

-		const args = varNames.join(", ");

-		return `/* WEBPACK VAR INJECTION */(function(${args}) {`;

-	}

-

-	contextArgument(block) {

-		if(this === block) {

-			return this.exportsArgument || "exports";

-		}

-		return "this";

-	}

-

-	/*

-	 * creates the end part of a IIFE around the module to inject a variable name

-	 * (function(...){

-	 * }.call(...))   <- this part

-	 */

-	variableInjectionFunctionWrapperEndCode(varExpressions, block) {

-		const firstParam = this.contextArgument(block);

-		const furtherParams = varExpressions.map(e => e.source()).join(", ");

-		return `}.call(${firstParam}, ${furtherParams}))`;

-	}

-

-	splitVariablesInUniqueNamedChunks(vars) {

-		const startState = [

-			[]

-		];

-		return vars.reduce((chunks, variable) => {

-			const current = chunks[chunks.length - 1];

-			// check if variable with same name exists already

-			// if so create a new chunk of variables.

-			const variableNameAlreadyExists = current.some(v => v.name === variable.name);

-

-			if(variableNameAlreadyExists) {

-				// start new chunk with current variable

-				chunks.push([variable]);

-			} else {

-				// else add it to current chunk

-				current.push(variable);

-			}

-			return chunks;

-		}, startState);

-	}

-

-	sourceBlock(block, availableVars, dependencyTemplates, source, outputOptions, requestShortener) {

-		block.dependencies.forEach((dependency) => this.sourceDependency(

-			dependency, dependencyTemplates, source, outputOptions, requestShortener));

-

-		/**

-		 * Get the variables of all blocks that we need to inject.

-		 * These will contain the variable name and its expression.

-		 * The name will be added as a paramter in a IIFE the expression as its value.

-		 */

-		const vars = block.variables.reduce((result, value) => {

-			const variable = this.sourceVariables(

-				value, availableVars, dependencyTemplates, outputOptions, requestShortener);

-

-			if(variable) {

-				result.push(variable);

-			}

-

-			return result;

-		}, []);

-

-		/**

-		 * if we actually have variables

-		 * this is important as how #splitVariablesInUniqueNamedChunks works

-		 * it will always return an array in an array which would lead to a IIFE wrapper around

-		 * a module if we do this with an empty vars array.

-		 */

-		if(vars.length > 0) {

-			/**

-			 * Split all variables up into chunks of unique names.

-			 * e.g. imagine you have the following variable names that need to be injected:

-			 * [foo, bar, baz, foo, some, more]

-			 * we can not inject "foo" twice, therefore we just make two IIFEs like so:

-			 * (function(foo, bar, baz){

-			 *   (function(foo, some, more){

-			 *     ...

-			 *   }(...));

-			 * }(...));

-			 *

-			 * "splitVariablesInUniqueNamedChunks" splits the variables shown above up to this:

-			 * [[foo, bar, baz], [foo, some, more]]

-			 */

-			const injectionVariableChunks = this.splitVariablesInUniqueNamedChunks(vars);

-

-			// create all the beginnings of IIFEs

-			const functionWrapperStarts = injectionVariableChunks.map((variableChunk) => {

-				return this.variableInjectionFunctionWrapperStartCode(

-					variableChunk.map(variable => variable.name)

-				);

-			});

-

-			// and all the ends

-			const functionWrapperEnds = injectionVariableChunks.map((variableChunk) => {

-				return this.variableInjectionFunctionWrapperEndCode(

-					variableChunk.map(variable => variable.expression), block

-				);

-			});

-

-			// join them to one big string

-			const varStartCode = functionWrapperStarts.join("");

-

-			// reverse the ends first before joining them, as the last added must be the inner most

-			const varEndCode = functionWrapperEnds.reverse().join("");

-

-			// if we have anything, add it to the source

-			if(varStartCode && varEndCode) {

-				const start = block.range ? block.range[0] : -10;

-				const end = block.range ? block.range[1] : (this._source.size() + 1);

-				source.insert(start + 0.5, varStartCode);

-				source.insert(end + 0.5, "\n/* WEBPACK VAR INJECTION */" + varEndCode);

-			}

-		}

-

-		block.blocks.forEach((block) =>

-			this.sourceBlock(

-				block,

-				availableVars.concat(vars),

-				dependencyTemplates,

-				source,

-				outputOptions,

-				requestShortener

-			)

-		);

-	}

-

-	source(dependencyTemplates, outputOptions, requestShortener) {

-		const hashDigest = this.getHashDigest(dependencyTemplates);

-		if(this._cachedSource && this._cachedSource.hash === hashDigest) {

-			return this._cachedSource.source;

-		}

-

-		if(!this._source) {

-			return new RawSource("throw new Error('No source available');");

-		}

-

-		const source = new ReplaceSource(this._source);

-		this._cachedSource = {

-			source: source,

-			hash: hashDigest

-		};

-

-		this.sourceBlock(this, [], dependencyTemplates, source, outputOptions, requestShortener);

-		return new CachedSource(source);

-	}

-

-	originalSource() {

-		return this._source;

-	}

-

-	getHighestTimestamp(keys, timestampsByKey) {

-		let highestTimestamp = 0;

-		for(let i = 0; i < keys.length; i++) {

-			const key = keys[i];

-			const timestamp = timestampsByKey[key];

-			// if there is no timestamp yet, early return with Infinity

-			if(!timestamp) return Infinity;

-			highestTimestamp = Math.max(highestTimestamp, timestamp);

-		}

-		return highestTimestamp;

-	}

-

-	needRebuild(fileTimestamps, contextTimestamps) {

-		const highestFileDepTimestamp = this.getHighestTimestamp(

-			this.fileDependencies, fileTimestamps);

-		// if the hightest is Infinity, we need a rebuild

-		// exit early here.

-		if(highestFileDepTimestamp === Infinity) {

-			return true;

-		}

-

-		const highestContextDepTimestamp = this.getHighestTimestamp(

-			this.contextDependencies, contextTimestamps);

-

-		// Again if the hightest is Infinity, we need a rebuild

-		// exit early here.

-		if(highestContextDepTimestamp === Infinity) {

-			return true;

-		}

-

-		// else take the highest of file and context timestamps and compare

-		// to last build timestamp

-		return Math.max(highestContextDepTimestamp, highestFileDepTimestamp) >= this.buildTimestamp;

-	}

-

-	size() {

-		return this._source ? this._source.size() : -1;

-	}

-

-	updateHashWithSource(hash) {

-		if(!this._source) {

-			hash.update("null");

-			return;

-		}

-		hash.update("source");

-		this._source.updateHash(hash);

-	}

-

-	updateHashWithMeta(hash) {

-		hash.update("meta");

-		hash.update(JSON.stringify(this.meta));

-	}

-

-	updateHash(hash) {

-		this.updateHashWithSource(hash);

-		this.updateHashWithMeta(hash);

-		super.updateHash(hash);

-	}

-

-}

-

-module.exports = NormalModule;

+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const NativeModule = require("module");
+
+const {
+	CachedSource,
+	LineToLineMappedSource,
+	OriginalSource,
+	RawSource,
+	SourceMapSource
+} = require("webpack-sources");
+const { getContext, runLoaders } = require("loader-runner");
+
+const WebpackError = require("./WebpackError");
+const Module = require("./Module");
+const ModuleParseError = require("./ModuleParseError");
+const ModuleBuildError = require("./ModuleBuildError");
+const ModuleError = require("./ModuleError");
+const ModuleWarning = require("./ModuleWarning");
+const createHash = require("./util/createHash");
+const contextify = require("./util/identifier").contextify;
+
+/** @typedef {import("./util/createHash").Hash} Hash */
+
+const asString = buf => {
+	if (Buffer.isBuffer(buf)) {
+		return buf.toString("utf-8");
+	}
+	return buf;
+};
+
+const asBuffer = str => {
+	if (!Buffer.isBuffer(str)) {
+		return Buffer.from(str, "utf-8");
+	}
+	return str;
+};
+
+class NonErrorEmittedError extends WebpackError {
+	constructor(error) {
+		super();
+
+		this.name = "NonErrorEmittedError";
+		this.message = "(Emitted value instead of an instance of Error) " + error;
+
+		Error.captureStackTrace(this, this.constructor);
+	}
+}
+
+/**
+ * @typedef {Object} CachedSourceEntry
+ * @property {TODO} source the generated source
+ * @property {string} hash the hash value
+ */
+
+class NormalModule extends Module {
+	constructor({
+		type,
+		request,
+		userRequest,
+		rawRequest,
+		loaders,
+		resource,
+		matchResource,
+		parser,
+		generator,
+		resolveOptions
+	}) {
+		super(type, getContext(resource));
+
+		// Info from Factory
+		this.request = request;
+		this.userRequest = userRequest;
+		this.rawRequest = rawRequest;
+		this.binary = type.startsWith("webassembly");
+		this.parser = parser;
+		this.generator = generator;
+		this.resource = resource;
+		this.matchResource = matchResource;
+		this.loaders = loaders;
+		if (resolveOptions !== undefined) this.resolveOptions = resolveOptions;
+
+		// Info from Build
+		this.error = null;
+		this._source = null;
+		this._buildHash = "";
+		this.buildTimestamp = undefined;
+		/** @private @type {Map<string, CachedSourceEntry>} */
+		this._cachedSources = new Map();
+
+		// Options for the NormalModule set by plugins
+		// TODO refactor this -> options object filled from Factory
+		this.useSourceMap = false;
+		this.lineToLine = false;
+
+		// Cache
+		this._lastSuccessfulBuildMeta = {};
+	}
+
+	identifier() {
+		return this.request;
+	}
+
+	readableIdentifier(requestShortener) {
+		return requestShortener.shorten(this.userRequest);
+	}
+
+	libIdent(options) {
+		return contextify(options.context, this.userRequest);
+	}
+
+	nameForCondition() {
+		const resource = this.matchResource || this.resource;
+		const idx = resource.indexOf("?");
+		if (idx >= 0) return resource.substr(0, idx);
+		return resource;
+	}
+
+	updateCacheModule(module) {
+		this.type = module.type;
+		this.request = module.request;
+		this.userRequest = module.userRequest;
+		this.rawRequest = module.rawRequest;
+		this.parser = module.parser;
+		this.generator = module.generator;
+		this.resource = module.resource;
+		this.matchResource = module.matchResource;
+		this.loaders = module.loaders;
+		this.resolveOptions = module.resolveOptions;
+	}
+
+	createSourceForAsset(name, content, sourceMap) {
+		if (!sourceMap) {
+			return new RawSource(content);
+		}
+
+		if (typeof sourceMap === "string") {
+			return new OriginalSource(content, sourceMap);
+		}
+
+		return new SourceMapSource(content, name, sourceMap);
+	}
+
+	createLoaderContext(resolver, options, compilation, fs) {
+		const requestShortener = compilation.runtimeTemplate.requestShortener;
+		const loaderContext = {
+			version: 2,
+			emitWarning: warning => {
+				if (!(warning instanceof Error)) {
+					warning = new NonErrorEmittedError(warning);
+				}
+				const currentLoader = this.getCurrentLoader(loaderContext);
+				this.warnings.push(
+					new ModuleWarning(this, warning, {
+						from: requestShortener.shorten(currentLoader.loader)
+					})
+				);
+			},
+			emitError: error => {
+				if (!(error instanceof Error)) {
+					error = new NonErrorEmittedError(error);
+				}
+				const currentLoader = this.getCurrentLoader(loaderContext);
+				this.errors.push(
+					new ModuleError(this, error, {
+						from: requestShortener.shorten(currentLoader.loader)
+					})
+				);
+			},
+			// TODO remove in webpack 5
+			exec: (code, filename) => {
+				// @ts-ignore Argument of type 'this' is not assignable to parameter of type 'Module'.
+				const module = new NativeModule(filename, this);
+				// @ts-ignore _nodeModulePaths is deprecated and undocumented Node.js API
+				module.paths = NativeModule._nodeModulePaths(this.context);
+				module.filename = filename;
+				module._compile(code, filename);
+				return module.exports;
+			},
+			resolve(context, request, callback) {
+				resolver.resolve({}, context, request, {}, callback);
+			},
+			emitFile: (name, content, sourceMap) => {
+				if (!this.buildInfo.assets) {
+					this.buildInfo.assets = Object.create(null);
+				}
+				this.buildInfo.assets[name] = this.createSourceForAsset(
+					name,
+					content,
+					sourceMap
+				);
+			},
+			rootContext: options.context,
+			webpack: true,
+			sourceMap: !!this.useSourceMap,
+			_module: this,
+			_compilation: compilation,
+			_compiler: compilation.compiler,
+			fs: fs
+		};
+
+		compilation.hooks.normalModuleLoader.call(loaderContext, this);
+		if (options.loader) {
+			Object.assign(loaderContext, options.loader);
+		}
+
+		return loaderContext;
+	}
+
+	getCurrentLoader(loaderContext, index = loaderContext.loaderIndex) {
+		if (
+			this.loaders &&
+			this.loaders.length &&
+			index < this.loaders.length &&
+			index >= 0 &&
+			this.loaders[index]
+		) {
+			return this.loaders[index];
+		}
+		return null;
+	}
+
+	createSource(source, resourceBuffer, sourceMap) {
+		// if there is no identifier return raw source
+		if (!this.identifier) {
+			return new RawSource(source);
+		}
+
+		// from here on we assume we have an identifier
+		const identifier = this.identifier();
+
+		if (this.lineToLine && resourceBuffer) {
+			return new LineToLineMappedSource(
+				source,
+				identifier,
+				asString(resourceBuffer)
+			);
+		}
+
+		if (this.useSourceMap && sourceMap) {
+			return new SourceMapSource(source, identifier, sourceMap);
+		}
+
+		if (Buffer.isBuffer(source)) {
+			// @ts-ignore
+			// TODO We need to fix @types/webpack-sources to allow RawSource to take a Buffer | string
+			return new RawSource(source);
+		}
+
+		return new OriginalSource(source, identifier);
+	}
+
+	doBuild(options, compilation, resolver, fs, callback) {
+		const loaderContext = this.createLoaderContext(
+			resolver,
+			options,
+			compilation,
+			fs
+		);
+
+		runLoaders(
+			{
+				resource: this.resource,
+				loaders: this.loaders,
+				context: loaderContext,
+				readResource: fs.readFile.bind(fs)
+			},
+			(err, result) => {
+				if (result) {
+					this.buildInfo.cacheable = result.cacheable;
+					this.buildInfo.fileDependencies = new Set(result.fileDependencies);
+					this.buildInfo.contextDependencies = new Set(
+						result.contextDependencies
+					);
+				}
+
+				if (err) {
+					if (!(err instanceof Error)) {
+						err = new NonErrorEmittedError(err);
+					}
+					const currentLoader = this.getCurrentLoader(loaderContext);
+					const error = new ModuleBuildError(this, err, {
+						from:
+							currentLoader &&
+							compilation.runtimeTemplate.requestShortener.shorten(
+								currentLoader.loader
+							)
+					});
+					return callback(error);
+				}
+
+				const resourceBuffer = result.resourceBuffer;
+				const source = result.result[0];
+				const sourceMap = result.result.length >= 1 ? result.result[1] : null;
+				const extraInfo = result.result.length >= 2 ? result.result[2] : null;
+
+				if (!Buffer.isBuffer(source) && typeof source !== "string") {
+					const currentLoader = this.getCurrentLoader(loaderContext, 0);
+					const err = new Error(
+						`Final loader (${
+							currentLoader
+								? compilation.runtimeTemplate.requestShortener.shorten(
+										currentLoader.loader
+								  )
+								: "unknown"
+						}) didn't return a Buffer or String`
+					);
+					const error = new ModuleBuildError(this, err);
+					return callback(error);
+				}
+
+				this._source = this.createSource(
+					this.binary ? asBuffer(source) : asString(source),
+					resourceBuffer,
+					sourceMap
+				);
+				this._ast =
+					typeof extraInfo === "object" &&
+					extraInfo !== null &&
+					extraInfo.webpackAST !== undefined
+						? extraInfo.webpackAST
+						: null;
+				return callback();
+			}
+		);
+	}
+
+	markModuleAsErrored(error) {
+		// Restore build meta from successful build to keep importing state
+		this.buildMeta = Object.assign({}, this._lastSuccessfulBuildMeta);
+
+		this.error = error;
+		this.errors.push(this.error);
+		this._source = new RawSource(
+			"throw new Error(" + JSON.stringify(this.error.message) + ");"
+		);
+		this._ast = null;
+	}
+
+	applyNoParseRule(rule, content) {
+		// must start with "rule" if rule is a string
+		if (typeof rule === "string") {
+			return content.indexOf(rule) === 0;
+		}
+
+		if (typeof rule === "function") {
+			return rule(content);
+		}
+		// we assume rule is a regexp
+		return rule.test(content);
+	}
+
+	// check if module should not be parsed
+	// returns "true" if the module should !not! be parsed
+	// returns "false" if the module !must! be parsed
+	shouldPreventParsing(noParseRule, request) {
+		// if no noParseRule exists, return false
+		// the module !must! be parsed.
+		if (!noParseRule) {
+			return false;
+		}
+
+		// we only have one rule to check
+		if (!Array.isArray(noParseRule)) {
+			// returns "true" if the module is !not! to be parsed
+			return this.applyNoParseRule(noParseRule, request);
+		}
+
+		for (let i = 0; i < noParseRule.length; i++) {
+			const rule = noParseRule[i];
+			// early exit on first truthy match
+			// this module is !not! to be parsed
+			if (this.applyNoParseRule(rule, request)) {
+				return true;
+			}
+		}
+		// no match found, so this module !should! be parsed
+		return false;
+	}
+
+	_initBuildHash(compilation) {
+		const hash = createHash(compilation.outputOptions.hashFunction);
+		if (this._source) {
+			hash.update("source");
+			this._source.updateHash(hash);
+		}
+		hash.update("meta");
+		hash.update(JSON.stringify(this.buildMeta));
+		this._buildHash = hash.digest("hex");
+	}
+
+	build(options, compilation, resolver, fs, callback) {
+		this.buildTimestamp = Date.now();
+		this.built = true;
+		this._source = null;
+		this._ast = null;
+		this._buildHash = "";
+		this.error = null;
+		this.errors.length = 0;
+		this.warnings.length = 0;
+		this.buildMeta = {};
+		this.buildInfo = {
+			cacheable: false,
+			fileDependencies: new Set(),
+			contextDependencies: new Set()
+		};
+
+		return this.doBuild(options, compilation, resolver, fs, err => {
+			this._cachedSources.clear();
+
+			// if we have an error mark module as failed and exit
+			if (err) {
+				this.markModuleAsErrored(err);
+				this._initBuildHash(compilation);
+				return callback();
+			}
+
+			// check if this module should !not! be parsed.
+			// if so, exit here;
+			const noParseRule = options.module && options.module.noParse;
+			if (this.shouldPreventParsing(noParseRule, this.request)) {
+				this._initBuildHash(compilation);
+				return callback();
+			}
+
+			const handleParseError = e => {
+				const source = this._source.source();
+				const error = new ModuleParseError(this, source, e);
+				this.markModuleAsErrored(error);
+				this._initBuildHash(compilation);
+				return callback();
+			};
+
+			const handleParseResult = result => {
+				this._lastSuccessfulBuildMeta = this.buildMeta;
+				this._initBuildHash(compilation);
+				return callback();
+			};
+
+			try {
+				const result = this.parser.parse(
+					this._ast || this._source.source(),
+					{
+						current: this,
+						module: this,
+						compilation: compilation,
+						options: options
+					},
+					(err, result) => {
+						if (err) {
+							handleParseError(err);
+						} else {
+							handleParseResult(result);
+						}
+					}
+				);
+				if (result !== undefined) {
+					// parse is sync
+					handleParseResult(result);
+				}
+			} catch (e) {
+				handleParseError(e);
+			}
+		});
+	}
+
+	getHashDigest(dependencyTemplates) {
+		// TODO webpack 5 refactor
+		let dtHash = dependencyTemplates.get("hash");
+		return `${this.hash}-${dtHash}`;
+	}
+
+	source(dependencyTemplates, runtimeTemplate, type = "javascript") {
+		const hashDigest = this.getHashDigest(dependencyTemplates);
+		const cacheEntry = this._cachedSources.get(type);
+		if (cacheEntry !== undefined && cacheEntry.hash === hashDigest) {
+			// We can reuse the cached source
+			return cacheEntry.source;
+		}
+
+		const source = this.generator.generate(
+			this,
+			dependencyTemplates,
+			runtimeTemplate,
+			type
+		);
+
+		const cachedSource = new CachedSource(source);
+		this._cachedSources.set(type, {
+			source: cachedSource,
+			hash: hashDigest
+		});
+		return cachedSource;
+	}
+
+	originalSource() {
+		return this._source;
+	}
+
+	needRebuild(fileTimestamps, contextTimestamps) {
+		// always try to rebuild in case of an error
+		if (this.error) return true;
+
+		// always rebuild when module is not cacheable
+		if (!this.buildInfo.cacheable) return true;
+
+		// Check timestamps of all dependencies
+		// Missing timestamp -> need rebuild
+		// Timestamp bigger than buildTimestamp -> need rebuild
+		for (const file of this.buildInfo.fileDependencies) {
+			const timestamp = fileTimestamps.get(file);
+			if (!timestamp) return true;
+			if (timestamp >= this.buildTimestamp) return true;
+		}
+		for (const file of this.buildInfo.contextDependencies) {
+			const timestamp = contextTimestamps.get(file);
+			if (!timestamp) return true;
+			if (timestamp >= this.buildTimestamp) return true;
+		}
+		// elsewise -> no rebuild needed
+		return false;
+	}
+
+	size() {
+		return this._source ? this._source.size() : -1;
+	}
+
+	/**
+	 * @param {Hash} hash the hash used to track dependencies
+	 * @returns {void}
+	 */
+	updateHash(hash) {
+		hash.update(this._buildHash);
+		super.updateHash(hash);
+	}
+}
+
+module.exports = NormalModule;