137 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			137 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
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	MIT License http://www.opensource.org/licenses/mit-license.php
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	Author Ivan Kopeykin @vankop
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*/
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"use strict";
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const Dependency = require("../Dependency");
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const RuntimeGlobals = require("../RuntimeGlobals");
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const makeSerializable = require("../util/makeSerializable");
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const ModuleDependency = require("./ModuleDependency");
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/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
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/** @typedef {import("../AsyncDependenciesBlock")} AsyncDependenciesBlock */
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/** @typedef {import("../ChunkGraph")} ChunkGraph */
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/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
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/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
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/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
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/** @typedef {import("../Entrypoint")} Entrypoint */
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/** @typedef {import("../ModuleGraph")} ModuleGraph */
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/** @typedef {import("../javascript/JavascriptParser").Range} Range */
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/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
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/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
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/** @typedef {import("../util/Hash")} Hash */
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/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
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class WorkerDependency extends ModuleDependency {
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	/**
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	 * @param {string} request request
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	 * @param {Range} range range
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	 * @param {object} workerDependencyOptions options
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	 * @param {string=} workerDependencyOptions.publicPath public path for the worker
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	 * @param {boolean=} workerDependencyOptions.needNewUrl need generate `new URL(...)`
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	 */
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	constructor(request, range, workerDependencyOptions) {
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		super(request);
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		this.range = range;
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		// If options are updated, don't forget to update the hash and serialization functions
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		this.options = workerDependencyOptions;
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		/** Cache the hash */
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		this._hashUpdate = undefined;
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	}
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	/**
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	 * Returns list of exports referenced by this dependency
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	 * @param {ModuleGraph} moduleGraph module graph
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	 * @param {RuntimeSpec} runtime the runtime for which the module is analysed
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	 * @returns {(string[] | ReferencedExport)[]} referenced exports
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	 */
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	getReferencedExports(moduleGraph, runtime) {
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		return Dependency.NO_EXPORTS_REFERENCED;
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	}
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	get type() {
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		return "new Worker()";
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	}
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	get category() {
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		return "worker";
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	}
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	/**
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	 * Update the hash
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	 * @param {Hash} hash hash to be updated
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	 * @param {UpdateHashContext} context context
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	 * @returns {void}
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	 */
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	updateHash(hash, context) {
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		if (this._hashUpdate === undefined) {
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			this._hashUpdate = JSON.stringify(this.options);
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		}
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		hash.update(this._hashUpdate);
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	}
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	/**
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	 * @param {ObjectSerializerContext} context context
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	 */
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	serialize(context) {
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		const { write } = context;
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		write(this.options);
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		super.serialize(context);
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	}
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	/**
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	 * @param {ObjectDeserializerContext} context context
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	 */
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	deserialize(context) {
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		const { read } = context;
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		this.options = read();
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		super.deserialize(context);
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	}
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}
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WorkerDependency.Template = class WorkerDependencyTemplate extends (
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	ModuleDependency.Template
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) {
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	/**
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	 * @param {Dependency} dependency the dependency for which the template should be applied
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	 * @param {ReplaceSource} source the current replace source which can be modified
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	 * @param {DependencyTemplateContext} templateContext the context object
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	 * @returns {void}
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	 */
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	apply(dependency, source, templateContext) {
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		const { chunkGraph, moduleGraph, runtimeRequirements } = templateContext;
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		const dep = /** @type {WorkerDependency} */ (dependency);
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		const block = /** @type {AsyncDependenciesBlock} */ (
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			moduleGraph.getParentBlock(dependency)
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		);
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		const entrypoint = /** @type {Entrypoint} */ (
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			chunkGraph.getBlockChunkGroup(block)
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		);
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		const chunk = entrypoint.getEntrypointChunk();
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		// We use the workerPublicPath option if provided, else we fallback to the RuntimeGlobal publicPath
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		const workerImportBaseUrl = dep.options.publicPath
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			? `"${dep.options.publicPath}"`
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			: RuntimeGlobals.publicPath;
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		runtimeRequirements.add(RuntimeGlobals.publicPath);
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		runtimeRequirements.add(RuntimeGlobals.baseURI);
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		runtimeRequirements.add(RuntimeGlobals.getChunkScriptFilename);
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		const workerImportStr = `/* worker import */ ${workerImportBaseUrl} + ${
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			RuntimeGlobals.getChunkScriptFilename
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		}(${JSON.stringify(chunk.id)}), ${RuntimeGlobals.baseURI}`;
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		source.replace(
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			dep.range[0],
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			dep.range[1] - 1,
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			dep.options.needNewUrl ? `new URL(${workerImportStr})` : workerImportStr
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		);
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	}
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};
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makeSerializable(WorkerDependency, "webpack/lib/dependencies/WorkerDependency");
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module.exports = WorkerDependency;
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