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node_modules/webpack/lib/library/ModuleLibraryPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { ConcatSource } = require("webpack-sources");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const Template = require("../Template");
+const propertyAccess = require("../util/propertyAccess");
+const AbstractLibraryPlugin = require("./AbstractLibraryPlugin");
+
+/** @typedef {import("webpack-sources").Source} Source */
+/** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
+/** @typedef {import("../../declarations/WebpackOptions").LibraryType} LibraryType */
+/** @typedef {import("../Chunk")} Chunk */
+/** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
+/** @typedef {import("../Compiler")} Compiler */
+/** @typedef {import("../Module")} Module */
+/** @typedef {import("../javascript/JavascriptModulesPlugin").StartupRenderContext} StartupRenderContext */
+/** @typedef {import("../util/Hash")} Hash */
+/** @template T @typedef {import("./AbstractLibraryPlugin").LibraryContext<T>} LibraryContext<T> */
+
+/**
+ * @typedef {Object} ModuleLibraryPluginOptions
+ * @property {LibraryType} type
+ */
+
+/**
+ * @typedef {Object} ModuleLibraryPluginParsed
+ * @property {string} name
+ */
+
+/**
+ * @typedef {ModuleLibraryPluginParsed} T
+ * @extends {AbstractLibraryPlugin<ModuleLibraryPluginParsed>}
+ */
+class ModuleLibraryPlugin extends AbstractLibraryPlugin {
+	/**
+	 * @param {ModuleLibraryPluginOptions} options the plugin options
+	 */
+	constructor(options) {
+		super({
+			pluginName: "ModuleLibraryPlugin",
+			type: options.type
+		});
+	}
+
+	/**
+	 * @param {LibraryOptions} library normalized library option
+	 * @returns {T | false} preprocess as needed by overriding
+	 */
+	parseOptions(library) {
+		const { name } = library;
+		if (name) {
+			throw new Error(
+				`Library name must be unset. ${AbstractLibraryPlugin.COMMON_LIBRARY_NAME_MESSAGE}`
+			);
+		}
+		return {
+			name: /** @type {string} */ (name)
+		};
+	}
+
+	/**
+	 * @param {Source} source source
+	 * @param {Module} module module
+	 * @param {StartupRenderContext} renderContext render context
+	 * @param {LibraryContext<T>} libraryContext context
+	 * @returns {Source} source with library export
+	 */
+	renderStartup(
+		source,
+		module,
+		{ moduleGraph, chunk },
+		{ options, compilation }
+	) {
+		const result = new ConcatSource(source);
+		const exportsInfo = moduleGraph.getExportsInfo(module);
+		const exports = [];
+		const isAsync = moduleGraph.isAsync(module);
+		if (isAsync) {
+			result.add(
+				`${RuntimeGlobals.exports} = await ${RuntimeGlobals.exports};\n`
+			);
+		}
+		for (const exportInfo of exportsInfo.orderedExports) {
+			if (!exportInfo.provided) continue;
+			const varName = `${RuntimeGlobals.exports}${Template.toIdentifier(
+				exportInfo.name
+			)}`;
+			result.add(
+				`var ${varName} = ${RuntimeGlobals.exports}${propertyAccess([
+					/** @type {string} */
+					(exportInfo.getUsedName(exportInfo.name, chunk.runtime))
+				])};\n`
+			);
+			exports.push(`${varName} as ${exportInfo.name}`);
+		}
+		if (exports.length > 0) {
+			result.add(`export { ${exports.join(", ")} };\n`);
+		}
+		return result;
+	}
+}
+
+module.exports = ModuleLibraryPlugin;