mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			109 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			109 lines
		
	
	
		
			3.3 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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| 
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| "use strict";
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| 
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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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| 
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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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| 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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| 
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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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| 	/**
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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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| 	/**
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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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| 					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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| 	/**
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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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| 
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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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| 
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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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| 					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().apply(compiler);
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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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| 
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| module.exports = EnableWasmLoadingPlugin;
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