Method apply

lib/wasm/EnableWasmLoadingPlugin.js:84–157

* Enables the requested wasm loading backend once and applies the * environment-specific plugins that provide its parser, generator, and * runtime support. * @param {Compiler} compiler the compiler instance * @returns {void}

(compiler)

	 * @returns {void}
	 */
	apply(compiler) {
		const { type } = this;

		// Only enable once
		const enabled = getEnabledTypes(compiler);
		if (enabled.has(type)) return;
		enabled.add(type);

		if (typeof type === "string") {
			switch (type) {
				case "fetch": {
					if (compiler.options.experiments.syncWebAssembly) {
						const FetchCompileWasmPlugin = require("../web/FetchCompileWasmPlugin");

						new FetchCompileWasmPlugin({
							mangleImports: compiler.options.optimization.mangleWasmImports
						}).apply(compiler);
					}

					if (compiler.options.experiments.asyncWebAssembly) {
						const FetchCompileAsyncWasmPlugin = require("../web/FetchCompileAsyncWasmPlugin");

						new FetchCompileAsyncWasmPlugin().apply(compiler);
					}

					break;
				}
				case "async-node": {
					if (compiler.options.experiments.syncWebAssembly) {
						const ReadFileCompileWasmPlugin = require("../node/ReadFileCompileWasmPlugin");

						new ReadFileCompileWasmPlugin({
							mangleImports: compiler.options.optimization.mangleWasmImports,
							import:
								compiler.options.output.module &&
								compiler.options.output.environment.dynamicImport
						}).apply(compiler);
					}

					if (compiler.options.experiments.asyncWebAssembly) {
						const ReadFileCompileAsyncWasmPlugin = require("../node/ReadFileCompileAsyncWasmPlugin");

						new ReadFileCompileAsyncWasmPlugin({
							import:
								compiler.options.output.module &&
								compiler.options.output.environment.dynamicImport
						}).apply(compiler);
					}

					break;
				}
				case "universal": {
					if (compiler.options.experiments.syncWebAssembly) {
						throw new Error(
							"Universal wasm loading type is only supported by asynchronous web assembly."
						);
					}