mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			773 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			773 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
/*
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	MIT License http://www.opensource.org/licenses/mit-license.php
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	Author Tobias Koppers @sokra
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*/
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"use strict";
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const { OriginalSource, RawSource } = require("webpack-sources");
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const AsyncDependenciesBlock = require("./AsyncDependenciesBlock");
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const Module = require("./Module");
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const Template = require("./Template");
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const contextify = require("./util/identifier").contextify;
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("./Compilation")} Compilation */
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/** @typedef {import("./DependencyTemplates")} DependencyTemplates */
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/** @typedef {import("./Module").LibIdentOptions} LibIdentOptions */
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/** @typedef {import("./Module").SourceContext} SourceContext */
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/** @typedef {import("./ModuleGraph")} ModuleGraph */
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/** @typedef {import("./RequestShortener")} RequestShortener */
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/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
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/** @typedef {import("./dependencies/ContextElementDependency")} ContextElementDependency */
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/** @typedef {"sync" | "eager" | "weak" | "async-weak" | "lazy" | "lazy-once"} ContextMode Context mode */
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/**
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 * @callback ResolveDependenciesCallback
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 * @param {Error=} err
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 * @param {ContextElementDependency[]} dependencies
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 */
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/**
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 * @callback ResolveDependencies
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 * @param {TODO} fs
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 * @param {TODO} options
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 * @param {ResolveDependenciesCallback} callback
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 */
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class ContextModule extends Module {
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	// type ContextMode = "sync" | "eager" | "weak" | "async-weak" | "lazy" | "lazy-once"
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	// type ContextOptions = { resource: string, recursive: boolean, regExp: RegExp, addon?: string, mode?: ContextMode, chunkName?: string, include?: RegExp, exclude?: RegExp, groupOptions?: Object }
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	// resolveDependencies: (fs: FS, options: ContextOptions, (err: Error?, dependencies: Dependency[]) => void) => void
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	// options: ContextOptions
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	/**
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	 * @param {ResolveDependencies} resolveDependencies function to get dependencies in this context
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	 * @param {TODO} options options object
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	 */
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	constructor(resolveDependencies, options) {
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		let resource;
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		let resourceQuery;
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		const queryIdx = options.resource.indexOf("?");
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		if (queryIdx >= 0) {
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			resource = options.resource.substr(0, queryIdx);
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			resourceQuery = options.resource.substr(queryIdx);
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		} else {
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			resource = options.resource;
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			resourceQuery = "";
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		}
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		super("javascript/dynamic", resource);
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		// Info from Factory
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		this.resolveDependencies = resolveDependencies;
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		this.options = Object.assign({}, options, {
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			resource: resource,
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			resourceQuery: resourceQuery
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		});
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		if (options.resolveOptions !== undefined) {
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			this.resolveOptions = options.resolveOptions;
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		}
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		// Info from Build
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		this._contextDependencies = new Set([this.context]);
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		if (typeof options.mode !== "string") {
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			throw new Error("options.mode is a required option");
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		}
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		this._identifier = this._createIdentifier();
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	}
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	/**
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	 * Assuming this module is in the cache. Update the (cached) module with
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	 * the fresh module from the factory. Usually updates internal references
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	 * and properties.
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	 * @param {Module} module fresh module
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	 * @returns {void}
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	 */
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	updateCacheModule(module) {
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		const m = /** @type {ContextModule} */ (module);
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		this.resolveDependencies = m.resolveDependencies;
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		this.options = m.options;
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		this.resolveOptions = m.resolveOptions;
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	}
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	prettyRegExp(regexString) {
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		// remove the "/" at the front and the beginning
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		// "/foo/" -> "foo"
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		return regexString.substring(1, regexString.length - 1);
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	}
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	_createIdentifier() {
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		let identifier = this.context;
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		if (this.options.resourceQuery) {
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			identifier += ` ${this.options.resourceQuery}`;
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		}
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		if (this.options.mode) {
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			identifier += ` ${this.options.mode}`;
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		}
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		if (!this.options.recursive) {
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			identifier += " nonrecursive";
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		}
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		if (this.options.addon) {
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			identifier += ` ${this.options.addon}`;
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		}
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		if (this.options.regExp) {
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			identifier += ` ${this.options.regExp}`;
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		}
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		if (this.options.include) {
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			identifier += ` include: ${this.options.include}`;
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		}
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		if (this.options.exclude) {
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			identifier += ` exclude: ${this.options.exclude}`;
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		}
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		if (this.options.groupOptions) {
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			identifier += ` groupOptions: ${JSON.stringify(
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				this.options.groupOptions
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			)}`;
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		}
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		if (this.options.namespaceObject === "strict") {
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			identifier += " strict namespace object";
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		} else if (this.options.namespaceObject) {
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			identifier += " namespace object";
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		}
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		return identifier;
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	}
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	/**
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	 * @returns {string} a unique identifier of the module
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	 */
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	identifier() {
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		return this._identifier;
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	}
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	/**
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	 * @param {RequestShortener} requestShortener the request shortener
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	 * @returns {string} a user readable identifier of the module
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	 */
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	readableIdentifier(requestShortener) {
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		let identifier = requestShortener.shorten(this.context);
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		if (this.options.resourceQuery) {
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			identifier += ` ${this.options.resourceQuery}`;
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		}
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		if (this.options.mode) {
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			identifier += ` ${this.options.mode}`;
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		}
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		if (!this.options.recursive) {
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			identifier += " nonrecursive";
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		}
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		if (this.options.addon) {
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			identifier += ` ${requestShortener.shorten(this.options.addon)}`;
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		}
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		if (this.options.regExp) {
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			identifier += ` ${this.prettyRegExp(this.options.regExp + "")}`;
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		}
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		if (this.options.include) {
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			identifier += ` include: ${this.prettyRegExp(this.options.include + "")}`;
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		}
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		if (this.options.exclude) {
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			identifier += ` exclude: ${this.prettyRegExp(this.options.exclude + "")}`;
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		}
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		if (this.options.groupOptions) {
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			const groupOptions = this.options.groupOptions;
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			for (const key of Object.keys(groupOptions)) {
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				identifier += ` ${key}: ${groupOptions[key]}`;
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			}
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		}
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		if (this.options.namespaceObject === "strict") {
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			identifier += " strict namespace object";
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		} else if (this.options.namespaceObject) {
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			identifier += " namespace object";
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		}
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		return identifier;
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	}
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	/**
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	 * @param {LibIdentOptions} options options
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	 * @returns {string | null} an identifier for library inclusion
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	 */
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	libIdent(options) {
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		let identifier = contextify(options.context, this.context);
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		if (this.options.mode) {
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			identifier += ` ${this.options.mode}`;
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		}
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		if (this.options.recursive) {
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			identifier += " recursive";
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		}
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		if (this.options.addon) {
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			identifier += ` ${contextify(options.context, this.options.addon)}`;
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		}
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		if (this.options.regExp) {
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			identifier += ` ${this.prettyRegExp(this.options.regExp + "")}`;
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		}
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		if (this.options.include) {
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			identifier += ` include: ${this.prettyRegExp(this.options.include + "")}`;
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		}
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		if (this.options.exclude) {
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			identifier += ` exclude: ${this.prettyRegExp(this.options.exclude + "")}`;
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		}
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		return identifier;
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	}
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	/**
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	 * @param {TODO} fileTimestamps timestamps of files
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	 * @param {TODO} contextTimestamps timestamps of directories
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	 * @returns {boolean} true, if the module needs a rebuild
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	 */
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	needRebuild(fileTimestamps, contextTimestamps) {
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		const ts = contextTimestamps.get(this.context);
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		if (!ts) {
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			return true;
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		}
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		return ts >= this.buildInfo.builtTime;
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	}
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	/**
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	 * @param {TODO} options TODO
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	 * @param {Compilation} compilation the compilation
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	 * @param {TODO} resolver TODO
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	 * @param {TODO} fs the file system
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	 * @param {function(Error=): void} callback callback function
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	 * @returns {void}
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	 */
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	build(options, compilation, resolver, fs, callback) {
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		this.buildMeta = {};
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		this.buildInfo = {
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			builtTime: Date.now(),
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			contextDependencies: this._contextDependencies
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		};
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		this.resolveDependencies(fs, this.options, (err, dependencies) => {
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			if (err) return callback(err);
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			// abort if something failed
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			// this will create an empty context
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			if (!dependencies) {
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				callback();
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				return;
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			}
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			// enhance dependencies with meta info
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			for (const dep of dependencies) {
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				dep.loc = {
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					name: dep.userRequest
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				};
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				dep.request = this.options.addon + dep.request;
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			}
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			if (this.options.mode === "sync" || this.options.mode === "eager") {
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				// if we have an sync or eager context
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				// just add all dependencies and continue
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				this.dependencies = dependencies;
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			} else if (this.options.mode === "lazy-once") {
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				// for the lazy-once mode create a new async dependency block
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				// and add that block to this context
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				if (dependencies.length > 0) {
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					const block = new AsyncDependenciesBlock(
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						Object.assign({}, this.options.groupOptions, {
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							name: this.options.chunkName
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						}),
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						this
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					);
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					for (const dep of dependencies) {
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						block.addDependency(dep);
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					}
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					this.addBlock(block);
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				}
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			} else if (
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				this.options.mode === "weak" ||
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				this.options.mode === "async-weak"
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			) {
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				// we mark all dependencies as weak
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				for (const dep of dependencies) {
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					dep.weak = true;
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				}
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				this.dependencies = dependencies;
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			} else if (this.options.mode === "lazy") {
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				// if we are lazy create a new async dependency block per dependency
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				// and add all blocks to this context
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				let index = 0;
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				for (const dep of dependencies) {
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					let chunkName = this.options.chunkName;
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					if (chunkName) {
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						if (!/\[(index|request)\]/.test(chunkName)) {
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							chunkName += "[index]";
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						}
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						chunkName = chunkName.replace(/\[index\]/g, index++);
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						chunkName = chunkName.replace(
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							/\[request\]/g,
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							Template.toPath(dep.userRequest)
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						);
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					}
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					const block = new AsyncDependenciesBlock(
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						Object.assign({}, this.options.groupOptions, {
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							name: chunkName
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						}),
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						compilation.moduleGraph.getModule(dep),
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						dep.loc,
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						dep.userRequest
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					);
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					block.addDependency(dep);
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					this.addBlock(block);
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				}
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			} else {
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				callback(
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					new Error(`Unsupported mode "${this.options.mode}" in context`)
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				);
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				return;
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			}
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			callback();
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		});
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	}
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	/**
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	 * @param {ContextElementDependency[]} dependencies all dependencies
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	 * @param {ModuleGraph} moduleGraph module graph
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	 * @returns {TODO} TODO
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	 */
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	getUserRequestMap(dependencies, moduleGraph) {
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		// if we filter first we get a new array
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		// therefor we dont need to create a clone of dependencies explicitly
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		// therefore the order of this is !important!
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		return dependencies
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			.filter(dependency => moduleGraph.getModule(dependency))
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			.sort((a, b) => {
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				if (a.userRequest === b.userRequest) {
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					return 0;
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				}
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				return a.userRequest < b.userRequest ? -1 : 1;
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			})
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			.reduce((map, dep) => {
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				map[dep.userRequest] = moduleGraph.getModule(dep).id;
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				return map;
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			}, Object.create(null));
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	}
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	/**
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	 * @param {ContextElementDependency[]} dependencies all dependencies
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	 * @param {ModuleGraph} moduleGraph module graph
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	 * @returns {TODO} TODO
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	 */
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	getFakeMap(dependencies, moduleGraph) {
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		if (!this.options.namespaceObject) {
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			return 9;
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		}
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		// if we filter first we get a new array
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		// therefor we dont need to create a clone of dependencies explicitly
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		// therefore the order of this is !important!
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		let hasNonHarmony = false;
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		let hasNamespace = false;
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		let hasNamed = false;
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		const fakeMap = dependencies
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			.map(dependency => ({
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				module: moduleGraph.getModule(dependency),
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				dependency
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			}))
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			.filter(item => item.module)
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			.sort((a, b) => {
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				if (a.module.id < b.module.id) return -1;
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				if (a.module.id > b.module.id) return 1;
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				return 0;
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			})
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			.reduce((map, { dependency: dep, module }) => {
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				const exportsType = module.buildMeta && module.buildMeta.exportsType;
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				const id = module.id;
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				if (!exportsType) {
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					map[id] = this.options.namespaceObject === "strict" ? 1 : 7;
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					hasNonHarmony = true;
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				} else if (exportsType === "namespace") {
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					map[id] = 9;
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					hasNamespace = true;
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				} else if (exportsType === "named") {
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					map[id] = 3;
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					hasNamed = true;
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				}
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				return map;
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			}, Object.create(null));
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		if (!hasNamespace && hasNonHarmony && !hasNamed) {
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			return this.options.namespaceObject === "strict" ? 1 : 7;
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		}
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		if (hasNamespace && !hasNonHarmony && !hasNamed) {
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			return 9;
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		}
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		if (!hasNamespace && !hasNonHarmony && hasNamed) {
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			return 3;
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		}
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		if (!hasNamespace && !hasNonHarmony && !hasNamed) {
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			return 9;
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		}
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		return fakeMap;
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	}
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	getFakeMapInitStatement(fakeMap) {
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		return typeof fakeMap === "object"
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			? `var fakeMap = ${JSON.stringify(fakeMap, null, "\t")};`
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			: "";
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	}
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	getReturn(type) {
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		if (type === 9) {
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			return "__webpack_require__(id)";
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		}
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		return `__webpack_require__.t(id, ${type})`;
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	}
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	getReturnModuleObjectSource(fakeMap, fakeMapDataExpression = "fakeMap[id]") {
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		if (typeof fakeMap === "number") {
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			return `return ${this.getReturn(fakeMap)};`;
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		}
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		return `return __webpack_require__.t(id, ${fakeMapDataExpression})`;
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	}
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	getSyncSource(dependencies, id, moduleGraph) {
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		const map = this.getUserRequestMap(dependencies, moduleGraph);
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		const fakeMap = this.getFakeMap(dependencies, moduleGraph);
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		const returnModuleObject = this.getReturnModuleObjectSource(fakeMap);
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		return `var map = ${JSON.stringify(map, null, "\t")};
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${this.getFakeMapInitStatement(fakeMap)}
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 | 
						|
function webpackContext(req) {
 | 
						|
	var id = webpackContextResolve(req);
 | 
						|
	${returnModuleObject}
 | 
						|
}
 | 
						|
function webpackContextResolve(req) {
 | 
						|
	var id = map[req];
 | 
						|
	if(!(id + 1)) { // check for number or string
 | 
						|
		var e = new Error("Cannot find module '" + req + "'");
 | 
						|
		e.code = 'MODULE_NOT_FOUND';
 | 
						|
		throw e;
 | 
						|
	}
 | 
						|
	return id;
 | 
						|
}
 | 
						|
webpackContext.keys = function webpackContextKeys() {
 | 
						|
	return Object.keys(map);
 | 
						|
};
 | 
						|
webpackContext.resolve = webpackContextResolve;
 | 
						|
module.exports = webpackContext;
 | 
						|
webpackContext.id = ${JSON.stringify(id)};`;
 | 
						|
	}
 | 
						|
 | 
						|
	getWeakSyncSource(dependencies, id, moduleGraph) {
 | 
						|
		const map = this.getUserRequestMap(dependencies, moduleGraph);
 | 
						|
		const fakeMap = this.getFakeMap(dependencies, moduleGraph);
 | 
						|
		const returnModuleObject = this.getReturnModuleObjectSource(fakeMap);
 | 
						|
 | 
						|
		return `var map = ${JSON.stringify(map, null, "\t")};
 | 
						|
${this.getFakeMapInitStatement(fakeMap)}
 | 
						|
 | 
						|
function webpackContext(req) {
 | 
						|
	var id = webpackContextResolve(req);
 | 
						|
	if(!__webpack_require__.m[id]) {
 | 
						|
		var e = new Error("Module '" + req + "' ('" + id + "') is not available (weak dependency)");
 | 
						|
		e.code = 'MODULE_NOT_FOUND';
 | 
						|
		throw e;
 | 
						|
	}
 | 
						|
	${returnModuleObject}
 | 
						|
}
 | 
						|
function webpackContextResolve(req) {
 | 
						|
	var id = map[req];
 | 
						|
	if(!(id + 1)) { // check for number or string
 | 
						|
		var e = new Error("Cannot find module '" + req + "'");
 | 
						|
		e.code = 'MODULE_NOT_FOUND';
 | 
						|
		throw e;
 | 
						|
	}
 | 
						|
	return id;
 | 
						|
}
 | 
						|
webpackContext.keys = function webpackContextKeys() {
 | 
						|
	return Object.keys(map);
 | 
						|
};
 | 
						|
webpackContext.resolve = webpackContextResolve;
 | 
						|
webpackContext.id = ${JSON.stringify(id)};
 | 
						|
module.exports = webpackContext;`;
 | 
						|
	}
 | 
						|
 | 
						|
	getAsyncWeakSource(dependencies, id, moduleGraph) {
 | 
						|
		const map = this.getUserRequestMap(dependencies, moduleGraph);
 | 
						|
		const fakeMap = this.getFakeMap(dependencies, moduleGraph);
 | 
						|
		const returnModuleObject = this.getReturnModuleObjectSource(fakeMap);
 | 
						|
 | 
						|
		return `var map = ${JSON.stringify(map, null, "\t")};
 | 
						|
${this.getFakeMapInitStatement(fakeMap)}
 | 
						|
 | 
						|
function webpackAsyncContext(req) {
 | 
						|
	return webpackAsyncContextResolve(req).then(function(id) {
 | 
						|
		if(!__webpack_require__.m[id]) {
 | 
						|
			var e = new Error("Module '" + req + "' ('" + id + "') is not available (weak dependency)");
 | 
						|
			e.code = 'MODULE_NOT_FOUND';
 | 
						|
			throw e;
 | 
						|
		}
 | 
						|
		${returnModuleObject}
 | 
						|
	});
 | 
						|
}
 | 
						|
function webpackAsyncContextResolve(req) {
 | 
						|
	// Here Promise.resolve().then() is used instead of new Promise() to prevent
 | 
						|
	// uncaught exception popping up in devtools
 | 
						|
	return Promise.resolve().then(function() {
 | 
						|
		var id = map[req];
 | 
						|
		if(!(id + 1)) { // check for number or string
 | 
						|
			var e = new Error("Cannot find module '" + req + "'");
 | 
						|
			e.code = 'MODULE_NOT_FOUND';
 | 
						|
			throw e;
 | 
						|
		}
 | 
						|
		return id;
 | 
						|
	});
 | 
						|
}
 | 
						|
webpackAsyncContext.keys = function webpackAsyncContextKeys() {
 | 
						|
	return Object.keys(map);
 | 
						|
};
 | 
						|
webpackAsyncContext.resolve = webpackAsyncContextResolve;
 | 
						|
webpackAsyncContext.id = ${JSON.stringify(id)};
 | 
						|
module.exports = webpackAsyncContext;`;
 | 
						|
	}
 | 
						|
 | 
						|
	getEagerSource(dependencies, id, moduleGraph) {
 | 
						|
		const map = this.getUserRequestMap(dependencies, moduleGraph);
 | 
						|
		const fakeMap = this.getFakeMap(dependencies, moduleGraph);
 | 
						|
		const thenFunction =
 | 
						|
			fakeMap !== 9
 | 
						|
				? `function(id) {
 | 
						|
		${this.getReturnModuleObjectSource(fakeMap)}
 | 
						|
	}`
 | 
						|
				: "__webpack_require__";
 | 
						|
		return `var map = ${JSON.stringify(map, null, "\t")};
 | 
						|
${this.getFakeMapInitStatement(fakeMap)}
 | 
						|
 | 
						|
function webpackAsyncContext(req) {
 | 
						|
	return webpackAsyncContextResolve(req).then(${thenFunction});
 | 
						|
}
 | 
						|
function webpackAsyncContextResolve(req) {
 | 
						|
	// Here Promise.resolve().then() is used instead of new Promise() to prevent
 | 
						|
	// uncaught exception popping up in devtools
 | 
						|
	return Promise.resolve().then(function() {
 | 
						|
		var id = map[req];
 | 
						|
		if(!(id + 1)) { // check for number or string
 | 
						|
			var e = new Error("Cannot find module '" + req + "'");
 | 
						|
			e.code = 'MODULE_NOT_FOUND';
 | 
						|
			throw e;
 | 
						|
		}
 | 
						|
		return id;
 | 
						|
	});
 | 
						|
}
 | 
						|
webpackAsyncContext.keys = function webpackAsyncContextKeys() {
 | 
						|
	return Object.keys(map);
 | 
						|
};
 | 
						|
webpackAsyncContext.resolve = webpackAsyncContextResolve;
 | 
						|
webpackAsyncContext.id = ${JSON.stringify(id)};
 | 
						|
module.exports = webpackAsyncContext;`;
 | 
						|
	}
 | 
						|
 | 
						|
	getLazyOnceSource(block, dependencies, id, { runtimeTemplate, moduleGraph }) {
 | 
						|
		const promise = runtimeTemplate.blockPromise({
 | 
						|
			block,
 | 
						|
			message: "lazy-once context"
 | 
						|
		});
 | 
						|
		const map = this.getUserRequestMap(dependencies, moduleGraph);
 | 
						|
		const fakeMap = this.getFakeMap(dependencies, moduleGraph);
 | 
						|
		const thenFunction =
 | 
						|
			fakeMap !== 9
 | 
						|
				? `function(id) {
 | 
						|
		${this.getReturnModuleObjectSource(fakeMap)};
 | 
						|
	}`
 | 
						|
				: "__webpack_require__";
 | 
						|
 | 
						|
		return `var map = ${JSON.stringify(map, null, "\t")};
 | 
						|
${this.getFakeMapInitStatement(fakeMap)}
 | 
						|
 | 
						|
function webpackAsyncContext(req) {
 | 
						|
	return webpackAsyncContextResolve(req).then(${thenFunction});
 | 
						|
}
 | 
						|
function webpackAsyncContextResolve(req) {
 | 
						|
	return ${promise}.then(function() {
 | 
						|
		var id = map[req];
 | 
						|
		if(!(id + 1)) { // check for number or string
 | 
						|
			var e = new Error("Cannot find module '" + req + "'");
 | 
						|
			e.code = 'MODULE_NOT_FOUND';
 | 
						|
			throw e;
 | 
						|
		}
 | 
						|
		return id;
 | 
						|
	});
 | 
						|
}
 | 
						|
webpackAsyncContext.keys = function webpackAsyncContextKeys() {
 | 
						|
	return Object.keys(map);
 | 
						|
};
 | 
						|
webpackAsyncContext.resolve = webpackAsyncContextResolve;
 | 
						|
webpackAsyncContext.id = ${JSON.stringify(id)};
 | 
						|
module.exports = webpackAsyncContext;`;
 | 
						|
	}
 | 
						|
 | 
						|
	getLazySource(blocks, id, moduleGraph) {
 | 
						|
		let hasMultipleOrNoChunks = false;
 | 
						|
		const fakeMap = this.getFakeMap(
 | 
						|
			blocks.map(b => b.dependencies[0]),
 | 
						|
			moduleGraph
 | 
						|
		);
 | 
						|
		const map = blocks
 | 
						|
			.map(block => {
 | 
						|
				const dependency = block.dependencies[0];
 | 
						|
				return {
 | 
						|
					dependency: dependency,
 | 
						|
					module: moduleGraph.getModule(dependency),
 | 
						|
					block: block,
 | 
						|
					userRequest: dependency.userRequest
 | 
						|
				};
 | 
						|
			})
 | 
						|
			.filter(item => item.module)
 | 
						|
			.sort((a, b) => {
 | 
						|
				if (a.userRequest === b.userRequest) return 0;
 | 
						|
				return a.userRequest < b.userRequest ? -1 : 1;
 | 
						|
			})
 | 
						|
			.reduce((map, item) => {
 | 
						|
				const chunks =
 | 
						|
					(item.block.chunkGroup && item.block.chunkGroup.chunks) || [];
 | 
						|
				if (chunks.length !== 1) {
 | 
						|
					hasMultipleOrNoChunks = true;
 | 
						|
				}
 | 
						|
				const arrayStart = [moduleGraph.getModule(item.dependency).id];
 | 
						|
				if (typeof fakeMap === "object") {
 | 
						|
					arrayStart.push(fakeMap[moduleGraph.getModule(item.dependency).id]);
 | 
						|
				}
 | 
						|
				map[item.userRequest] = arrayStart.concat(
 | 
						|
					chunks.map(chunk => chunk.id)
 | 
						|
				);
 | 
						|
 | 
						|
				return map;
 | 
						|
			}, Object.create(null));
 | 
						|
 | 
						|
		const chunksStartPosition = typeof fakeMap === "object" ? 2 : 1;
 | 
						|
		const requestPrefix = hasMultipleOrNoChunks
 | 
						|
			? `Promise.all(ids.slice(${chunksStartPosition}).map(__webpack_require__.e))`
 | 
						|
			: `__webpack_require__.e(ids[${chunksStartPosition}])`;
 | 
						|
		const returnModuleObject = this.getReturnModuleObjectSource(
 | 
						|
			fakeMap,
 | 
						|
			"ids[1]"
 | 
						|
		);
 | 
						|
 | 
						|
		return `var map = ${JSON.stringify(map, null, "\t")};
 | 
						|
function webpackAsyncContext(req) {
 | 
						|
	var ids = map[req];
 | 
						|
	if(!ids) {
 | 
						|
		return Promise.resolve().then(function() {
 | 
						|
			var e = new Error("Cannot find module '" + req + "'");
 | 
						|
			e.code = 'MODULE_NOT_FOUND';
 | 
						|
			throw e;
 | 
						|
		});
 | 
						|
	}
 | 
						|
	return ${requestPrefix}.then(function() {
 | 
						|
		var id = ids[0];
 | 
						|
		${returnModuleObject}
 | 
						|
	});
 | 
						|
}
 | 
						|
webpackAsyncContext.keys = function webpackAsyncContextKeys() {
 | 
						|
	return Object.keys(map);
 | 
						|
};
 | 
						|
webpackAsyncContext.id = ${JSON.stringify(id)};
 | 
						|
module.exports = webpackAsyncContext;`;
 | 
						|
	}
 | 
						|
 | 
						|
	getSourceForEmptyContext(id) {
 | 
						|
		return `function webpackEmptyContext(req) {
 | 
						|
	var e = new Error("Cannot find module '" + req + "'");
 | 
						|
	e.code = 'MODULE_NOT_FOUND';
 | 
						|
	throw e;
 | 
						|
}
 | 
						|
webpackEmptyContext.keys = function() { return []; };
 | 
						|
webpackEmptyContext.resolve = webpackEmptyContext;
 | 
						|
module.exports = webpackEmptyContext;
 | 
						|
webpackEmptyContext.id = ${JSON.stringify(id)};`;
 | 
						|
	}
 | 
						|
 | 
						|
	getSourceForEmptyAsyncContext(id) {
 | 
						|
		return `function webpackEmptyAsyncContext(req) {
 | 
						|
	// Here Promise.resolve().then() is used instead of new Promise() to prevent
 | 
						|
	// uncaught exception popping up in devtools
 | 
						|
	return Promise.resolve().then(function() {
 | 
						|
		var e = new Error("Cannot find module '" + req + "'");
 | 
						|
		e.code = 'MODULE_NOT_FOUND';
 | 
						|
		throw e;
 | 
						|
	});
 | 
						|
}
 | 
						|
webpackEmptyAsyncContext.keys = function() { return []; };
 | 
						|
webpackEmptyAsyncContext.resolve = webpackEmptyAsyncContext;
 | 
						|
module.exports = webpackEmptyAsyncContext;
 | 
						|
webpackEmptyAsyncContext.id = ${JSON.stringify(id)};`;
 | 
						|
	}
 | 
						|
 | 
						|
	getSourceString(asyncMode, { runtimeTemplate, moduleGraph }) {
 | 
						|
		if (asyncMode === "lazy") {
 | 
						|
			if (this.blocks && this.blocks.length > 0) {
 | 
						|
				return this.getLazySource(this.blocks, this.id, moduleGraph);
 | 
						|
			}
 | 
						|
			return this.getSourceForEmptyAsyncContext(this.id);
 | 
						|
		}
 | 
						|
		if (asyncMode === "eager") {
 | 
						|
			if (this.dependencies && this.dependencies.length > 0) {
 | 
						|
				return this.getEagerSource(this.dependencies, this.id, moduleGraph);
 | 
						|
			}
 | 
						|
			return this.getSourceForEmptyAsyncContext(this.id);
 | 
						|
		}
 | 
						|
		if (asyncMode === "lazy-once") {
 | 
						|
			const block = this.blocks[0];
 | 
						|
			if (block) {
 | 
						|
				return this.getLazyOnceSource(block, block.dependencies, this.id, {
 | 
						|
					runtimeTemplate,
 | 
						|
					moduleGraph
 | 
						|
				});
 | 
						|
			}
 | 
						|
			return this.getSourceForEmptyAsyncContext(this.id);
 | 
						|
		}
 | 
						|
		if (asyncMode === "async-weak") {
 | 
						|
			if (this.dependencies && this.dependencies.length > 0) {
 | 
						|
				return this.getAsyncWeakSource(this.dependencies, this.id, moduleGraph);
 | 
						|
			}
 | 
						|
			return this.getSourceForEmptyAsyncContext(this.id);
 | 
						|
		}
 | 
						|
		if (asyncMode === "weak") {
 | 
						|
			if (this.dependencies && this.dependencies.length > 0) {
 | 
						|
				return this.getWeakSyncSource(this.dependencies, this.id, moduleGraph);
 | 
						|
			}
 | 
						|
		}
 | 
						|
		if (this.dependencies && this.dependencies.length > 0) {
 | 
						|
			return this.getSyncSource(this.dependencies, this.id, moduleGraph);
 | 
						|
		}
 | 
						|
		return this.getSourceForEmptyContext(this.id);
 | 
						|
	}
 | 
						|
 | 
						|
	getSource(sourceString) {
 | 
						|
		if (this.useSourceMap) {
 | 
						|
			return new OriginalSource(sourceString, this.identifier());
 | 
						|
		}
 | 
						|
		return new RawSource(sourceString);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @param {SourceContext} sourceContext source context
 | 
						|
	 * @returns {Source} generated source
 | 
						|
	 */
 | 
						|
	source({ runtimeTemplate, moduleGraph }) {
 | 
						|
		return this.getSource(
 | 
						|
			this.getSourceString(this.options.mode, { runtimeTemplate, moduleGraph })
 | 
						|
		);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * @returns {number} the estimated size of the module
 | 
						|
	 */
 | 
						|
	size() {
 | 
						|
		// base penalty
 | 
						|
		const initialSize = 160;
 | 
						|
 | 
						|
		// if we dont have dependencies we stop here.
 | 
						|
		return this.dependencies.reduce((size, dependency) => {
 | 
						|
			const element = /** @type {ContextElementDependency} */ (dependency);
 | 
						|
			return size + 5 + element.userRequest.length;
 | 
						|
		}, initialSize);
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
module.exports = ContextModule;
 |