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node_modules/webpack/lib/javascript/EnableChunkLoadingPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("../../declarations/WebpackOptions").ChunkLoadingType} ChunkLoadingType */
+/** @typedef {import("../Compiler")} Compiler */
+
+/** @type {WeakMap<Compiler, Set<ChunkLoadingType>>} */
+const enabledTypes = new WeakMap();
+
+/**
+ * @param {Compiler} compiler compiler
+ * @returns {Set<ChunkLoadingType>} enabled types
+ */
+const getEnabledTypes = compiler => {
+	let set = enabledTypes.get(compiler);
+	if (set === undefined) {
+		set = new Set();
+		enabledTypes.set(compiler, set);
+	}
+	return set;
+};
+
+class EnableChunkLoadingPlugin {
+	/**
+	 * @param {ChunkLoadingType} type library type that should be available
+	 */
+	constructor(type) {
+		this.type = type;
+	}
+
+	/**
+	 * @param {Compiler} compiler the compiler instance
+	 * @param {ChunkLoadingType} type type of library
+	 * @returns {void}
+	 */
+	static setEnabled(compiler, type) {
+		getEnabledTypes(compiler).add(type);
+	}
+
+	/**
+	 * @param {Compiler} compiler the compiler instance
+	 * @param {ChunkLoadingType} type type of library
+	 * @returns {void}
+	 */
+	static checkEnabled(compiler, type) {
+		if (!getEnabledTypes(compiler).has(type)) {
+			throw new Error(
+				`Chunk loading type "${type}" is not enabled. ` +
+					"EnableChunkLoadingPlugin need to be used to enable this type of chunk loading. " +
+					'This usually happens through the "output.enabledChunkLoadingTypes" option. ' +
+					'If you are using a function as entry which sets "chunkLoading", you need to add all potential chunk loading types to "output.enabledChunkLoadingTypes". ' +
+					"These types are enabled: " +
+					Array.from(getEnabledTypes(compiler)).join(", ")
+			);
+		}
+	}
+
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @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 "jsonp": {
+					const JsonpChunkLoadingPlugin = require("../web/JsonpChunkLoadingPlugin");
+					new JsonpChunkLoadingPlugin().apply(compiler);
+					break;
+				}
+				case "import-scripts": {
+					const ImportScriptsChunkLoadingPlugin = require("../webworker/ImportScriptsChunkLoadingPlugin");
+					new ImportScriptsChunkLoadingPlugin().apply(compiler);
+					break;
+				}
+				case "require": {
+					//@ts-expect-error https://github.com/microsoft/TypeScript/issues/41697
+					const CommonJsChunkLoadingPlugin = require("../node/CommonJsChunkLoadingPlugin");
+					new CommonJsChunkLoadingPlugin({
+						asyncChunkLoading: false
+					}).apply(compiler);
+					break;
+				}
+				case "async-node": {
+					//@ts-expect-error https://github.com/microsoft/TypeScript/issues/41697
+					const CommonJsChunkLoadingPlugin = require("../node/CommonJsChunkLoadingPlugin");
+					new CommonJsChunkLoadingPlugin({
+						asyncChunkLoading: true
+					}).apply(compiler);
+					break;
+				}
+				case "import": {
+					const ModuleChunkLoadingPlugin = require("../esm/ModuleChunkLoadingPlugin");
+					new ModuleChunkLoadingPlugin().apply(compiler);
+					break;
+				}
+				case "universal":
+					// TODO implement universal chunk loading
+					throw new Error("Universal Chunk Loading is not implemented yet");
+				default:
+					throw new Error(`Unsupported chunk loading type ${type}.
+Plugins which provide custom chunk loading types must call EnableChunkLoadingPlugin.setEnabled(compiler, type) to disable this error.`);
+			}
+		} else {
+			// TODO support plugin instances here
+			// apply them to the compiler
+		}
+	}
+}
+
+module.exports = EnableChunkLoadingPlugin;