153 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			153 lines
		
	
	
		
			4.5 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 Generator = require("../Generator");
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const { WEBASSEMBLY_MODULE_TYPE_SYNC } = require("../ModuleTypeConstants");
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const WebAssemblyExportImportedDependency = require("../dependencies/WebAssemblyExportImportedDependency");
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const WebAssemblyImportDependency = require("../dependencies/WebAssemblyImportDependency");
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const { compareModulesByIdOrIdentifier } = require("../util/comparators");
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const memoize = require("../util/memoize");
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const WebAssemblyInInitialChunkError = require("./WebAssemblyInInitialChunkError");
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/** @typedef {import("webpack-sources").Source} Source */
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/** @typedef {import("../../declarations/WebpackOptions").OutputNormalized} OutputOptions */
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/** @typedef {import("../Compiler")} Compiler */
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/** @typedef {import("../Module")} Module */
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/** @typedef {import("../ModuleTemplate")} ModuleTemplate */
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/** @typedef {import("../javascript/JavascriptModulesPlugin").RenderContext} RenderContext */
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const getWebAssemblyGenerator = memoize(() =>
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	require("./WebAssemblyGenerator")
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);
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const getWebAssemblyJavascriptGenerator = memoize(() =>
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	require("./WebAssemblyJavascriptGenerator")
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);
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const getWebAssemblyParser = memoize(() => require("./WebAssemblyParser"));
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const PLUGIN_NAME = "WebAssemblyModulesPlugin";
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/**
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 * @typedef {object} WebAssemblyModulesPluginOptions
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 * @property {boolean=} mangleImports mangle imports
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 */
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class WebAssemblyModulesPlugin {
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	/**
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	 * @param {WebAssemblyModulesPluginOptions} options options
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	 */
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	constructor(options) {
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		this.options = options;
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	}
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	/**
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	 * Apply the plugin
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	 * @param {Compiler} compiler the compiler instance
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	 * @returns {void}
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	 */
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	apply(compiler) {
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		compiler.hooks.compilation.tap(
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			PLUGIN_NAME,
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			(compilation, { normalModuleFactory }) => {
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				compilation.dependencyFactories.set(
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					WebAssemblyImportDependency,
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					normalModuleFactory
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				);
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				compilation.dependencyFactories.set(
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					WebAssemblyExportImportedDependency,
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					normalModuleFactory
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				);
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				normalModuleFactory.hooks.createParser
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					.for(WEBASSEMBLY_MODULE_TYPE_SYNC)
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					.tap(PLUGIN_NAME, () => {
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						const WebAssemblyParser = getWebAssemblyParser();
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						return new WebAssemblyParser();
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					});
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				normalModuleFactory.hooks.createGenerator
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					.for(WEBASSEMBLY_MODULE_TYPE_SYNC)
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					.tap(PLUGIN_NAME, () => {
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						const WebAssemblyJavascriptGenerator =
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							getWebAssemblyJavascriptGenerator();
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						const WebAssemblyGenerator = getWebAssemblyGenerator();
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						return Generator.byType({
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							javascript: new WebAssemblyJavascriptGenerator(),
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							webassembly: new WebAssemblyGenerator(this.options)
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						});
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					});
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				compilation.hooks.renderManifest.tap(PLUGIN_NAME, (result, options) => {
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					const { chunkGraph } = compilation;
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					const { chunk, outputOptions, codeGenerationResults } = options;
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					for (const module of chunkGraph.getOrderedChunkModulesIterable(
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						chunk,
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						compareModulesByIdOrIdentifier(chunkGraph)
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					)) {
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						if (module.type === WEBASSEMBLY_MODULE_TYPE_SYNC) {
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							const filenameTemplate =
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								/** @type {NonNullable<OutputOptions["webassemblyModuleFilename"]>} */
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								(outputOptions.webassemblyModuleFilename);
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							result.push({
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								render: () =>
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									codeGenerationResults.getSource(
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										module,
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										chunk.runtime,
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										"webassembly"
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									),
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								filenameTemplate,
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								pathOptions: {
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									module,
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									runtime: chunk.runtime,
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									chunkGraph
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								},
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								auxiliary: true,
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								identifier: `webassemblyModule${chunkGraph.getModuleId(
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									module
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								)}`,
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								hash: chunkGraph.getModuleHash(module, chunk.runtime)
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							});
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						}
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					}
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					return result;
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				});
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				compilation.hooks.afterChunks.tap(PLUGIN_NAME, () => {
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					const chunkGraph = compilation.chunkGraph;
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					const initialWasmModules = new Set();
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					for (const chunk of compilation.chunks) {
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						if (chunk.canBeInitial()) {
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							for (const module of chunkGraph.getChunkModulesIterable(chunk)) {
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								if (module.type === WEBASSEMBLY_MODULE_TYPE_SYNC) {
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									initialWasmModules.add(module);
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								}
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							}
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						}
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					}
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					for (const module of initialWasmModules) {
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						compilation.errors.push(
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							new WebAssemblyInInitialChunkError(
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								module,
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								compilation.moduleGraph,
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								compilation.chunkGraph,
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								compilation.requestShortener
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							)
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						);
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					}
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				});
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			}
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		);
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	}
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}
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module.exports = WebAssemblyModulesPlugin;
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