1 files changed, 122 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/library/ExportPropertyLibraryPlugin.js b/node_modules/webpack/lib/library/ExportPropertyLibraryPlugin.js
new file mode 100644
index 00000000..1fe8945b
--- /dev/null
+++ b/node_modules/webpack/lib/library/ExportPropertyLibraryPlugin.js
@@ -0,0 +1,122 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { ConcatSource } = require("webpack-sources");
+const { UsageState } = require("../ExportsInfo");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const propertyAccess = require("../util/propertyAccess");
+const { getEntryRuntime } = require("../util/runtime");
+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("../Compiler")} Compiler */
+/** @typedef {import("../Module")} Module */
+/** @typedef {import("../javascript/JavascriptModulesPlugin").StartupRenderContext} StartupRenderContext */
+/** @template T @typedef {import("./AbstractLibraryPlugin").LibraryContext<T>} LibraryContext<T> */
+
+/**
+ * @typedef {object} ExportPropertyLibraryPluginParsed
+ * @property {string | string[]} export
+ */
+
+/**
+ * @typedef {object} ExportPropertyLibraryPluginOptions
+ * @property {LibraryType} type
+ * @property {boolean} nsObjectUsed the namespace object is used
+ * @property {boolean} runtimeExportsUsed runtime exports are used
+ */
+/**
+ * @typedef {ExportPropertyLibraryPluginParsed} T
+ * @extends {AbstractLibraryPlugin<ExportPropertyLibraryPluginParsed>}
+ */
+class ExportPropertyLibraryPlugin extends AbstractLibraryPlugin {
+	/**
+	 * @param {ExportPropertyLibraryPluginOptions} options options
+	 */
+	constructor({ type, nsObjectUsed, runtimeExportsUsed }) {
+		super({
+			pluginName: "ExportPropertyLibraryPlugin",
+			type
+		});
+		this.nsObjectUsed = nsObjectUsed;
+		this.runtimeExportsUsed = runtimeExportsUsed;
+	}
+
+	/**
+	 * @param {LibraryOptions} library normalized library option
+	 * @returns {T | false} preprocess as needed by overriding
+	 */
+	parseOptions(library) {
+		return {
+			export: library.export
+		};
+	}
+
+	/**
+	 * @param {Module} module the exporting entry module
+	 * @param {string} entryName the name of the entrypoint
+	 * @param {LibraryContext<T>} libraryContext context
+	 * @returns {void}
+	 */
+	finishEntryModule(
+		module,
+		entryName,
+		{ options, compilation, compilation: { moduleGraph } }
+	) {
+		const runtime = getEntryRuntime(compilation, entryName);
+		if (options.export) {
+			const exportsInfo = moduleGraph.getExportInfo(
+				module,
+				Array.isArray(options.export) ? options.export[0] : options.export
+			);
+			exportsInfo.setUsed(UsageState.Used, runtime);
+			exportsInfo.canMangleUse = false;
+		} else {
+			const exportsInfo = moduleGraph.getExportsInfo(module);
+			if (this.nsObjectUsed) {
+				exportsInfo.setUsedInUnknownWay(runtime);
+			} else {
+				exportsInfo.setAllKnownExportsUsed(runtime);
+			}
+		}
+		moduleGraph.addExtraReason(module, "used as library export");
+	}
+
+	/**
+	 * @param {Chunk} chunk the chunk
+	 * @param {Set<string>} set runtime requirements
+	 * @param {LibraryContext<T>} libraryContext context
+	 * @returns {void}
+	 */
+	runtimeRequirements(chunk, set, libraryContext) {
+		if (this.runtimeExportsUsed) {
+			set.add(RuntimeGlobals.exports);
+		}
+	}
+
+	/**
+	 * @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, renderContext, { options }) {
+		if (!options.export) return source;
+		const postfix = `${RuntimeGlobals.exports} = ${
+			RuntimeGlobals.exports
+		}${propertyAccess(
+			Array.isArray(options.export) ? options.export : [options.export]
+		)};\n`;
+		return new ConcatSource(source, postfix);
+	}
+}
+
+module.exports = ExportPropertyLibraryPlugin;