mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			123 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			123 lines
		
	
	
		
			3.8 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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/** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
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/** @typedef {import("../../declarations/WebpackOptions").WasmLoadingType} WasmLoadingType */
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/** @typedef {import("../Compiler")} Compiler */
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/** @type {WeakMap<Compiler, Set<WasmLoadingType>>} */
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const enabledTypes = new WeakMap();
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/**
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 * @param {Compiler} compiler compiler instance
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 * @returns {Set<WasmLoadingType>} enabled types
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 */
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const getEnabledTypes = compiler => {
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	let set = enabledTypes.get(compiler);
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	if (set === undefined) {
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		set = new Set();
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		enabledTypes.set(compiler, set);
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	}
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	return set;
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};
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class EnableWasmLoadingPlugin {
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	/**
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	 * @param {WasmLoadingType} type library type that should be available
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	 */
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	constructor(type) {
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		this.type = type;
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	}
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	/**
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	 * @param {Compiler} compiler the compiler instance
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	 * @param {WasmLoadingType} type type of library
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	 * @returns {void}
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	 */
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	static setEnabled(compiler, type) {
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		getEnabledTypes(compiler).add(type);
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	}
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	/**
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	 * @param {Compiler} compiler the compiler instance
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	 * @param {WasmLoadingType} type type of library
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	 * @returns {void}
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	 */
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	static checkEnabled(compiler, type) {
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		if (!getEnabledTypes(compiler).has(type)) {
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			throw new Error(
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				`Library type "${type}" is not enabled. ` +
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					"EnableWasmLoadingPlugin need to be used to enable this type of wasm loading. " +
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					'This usually happens through the "output.enabledWasmLoadingTypes" option. ' +
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					'If you are using a function as entry which sets "wasmLoading", you need to add all potential library types to "output.enabledWasmLoadingTypes". ' +
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					"These types are enabled: " +
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					Array.from(getEnabledTypes(compiler)).join(", ")
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			);
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		}
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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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		const { type } = this;
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		// Only enable once
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		const enabled = getEnabledTypes(compiler);
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		if (enabled.has(type)) return;
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		enabled.add(type);
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		if (typeof type === "string") {
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			switch (type) {
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				case "fetch": {
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					// TODO webpack 6 remove FetchCompileWasmPlugin
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					const FetchCompileWasmPlugin = require("../web/FetchCompileWasmPlugin");
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					const FetchCompileAsyncWasmPlugin = require("../web/FetchCompileAsyncWasmPlugin");
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					new FetchCompileWasmPlugin({
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						mangleImports: compiler.options.optimization.mangleWasmImports
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					}).apply(compiler);
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					new FetchCompileAsyncWasmPlugin().apply(compiler);
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					break;
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				}
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				case "async-node": {
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					// TODO webpack 6 remove ReadFileCompileWasmPlugin
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					const ReadFileCompileWasmPlugin = require("../node/ReadFileCompileWasmPlugin");
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					// @ts-expect-error typescript bug for duplicate require
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					const ReadFileCompileAsyncWasmPlugin = require("../node/ReadFileCompileAsyncWasmPlugin");
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					new ReadFileCompileWasmPlugin({
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						mangleImports: compiler.options.optimization.mangleWasmImports
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					}).apply(compiler);
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					new ReadFileCompileAsyncWasmPlugin({ type }).apply(compiler);
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					break;
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				}
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				case "async-node-module": {
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					// @ts-expect-error typescript bug for duplicate require
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					const ReadFileCompileAsyncWasmPlugin = require("../node/ReadFileCompileAsyncWasmPlugin");
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					new ReadFileCompileAsyncWasmPlugin({ type, import: true }).apply(
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						compiler
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					);
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					break;
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				}
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				case "universal":
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					throw new Error(
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						"Universal WebAssembly Loading is not implemented yet"
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					);
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				default:
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					throw new Error(`Unsupported wasm loading type ${type}.
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Plugins which provide custom wasm loading types must call EnableWasmLoadingPlugin.setEnabled(compiler, type) to disable this error.`);
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			}
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		} else {
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			// TODO support plugin instances here
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			// apply them to the compiler
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		}
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	}
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}
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module.exports = EnableWasmLoadingPlugin;
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