1 files changed, 92 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/sharing/SharePlugin.js b/node_modules/webpack/lib/sharing/SharePlugin.js
new file mode 100644
index 00000000..65935b30
--- /dev/null
+++ b/node_modules/webpack/lib/sharing/SharePlugin.js
@@ -0,0 +1,92 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra and Zackary Jackson @ScriptedAlchemy
+*/
+
+"use strict";
+
+const { parseOptions } = require("../container/options");
+const ConsumeSharedPlugin = require("./ConsumeSharedPlugin");
+const ProvideSharedPlugin = require("./ProvideSharedPlugin");
+const { isRequiredVersion } = require("./utils");
+
+/** @typedef {import("../../declarations/plugins/sharing/ConsumeSharedPlugin").ConsumeSharedPluginOptions} ConsumeSharedPluginOptions */
+/** @typedef {import("../../declarations/plugins/sharing/ConsumeSharedPlugin").ConsumesConfig} ConsumesConfig */
+/** @typedef {import("../../declarations/plugins/sharing/ProvideSharedPlugin").ProvideSharedPluginOptions} ProvideSharedPluginOptions */
+/** @typedef {import("../../declarations/plugins/sharing/ProvideSharedPlugin").ProvidesConfig} ProvidesConfig */
+/** @typedef {import("../../declarations/plugins/sharing/SharePlugin").SharePluginOptions} SharePluginOptions */
+/** @typedef {import("../../declarations/plugins/sharing/SharePlugin").SharedConfig} SharedConfig */
+/** @typedef {import("../Compiler")} Compiler */
+
+class SharePlugin {
+	/**
+	 * @param {SharePluginOptions} options options
+	 */
+	constructor(options) {
+		/** @type {[string, SharedConfig][]} */
+		const sharedOptions = parseOptions(
+			options.shared,
+			(item, key) => {
+				if (typeof item !== "string")
+					throw new Error("Unexpected array in shared");
+				/** @type {SharedConfig} */
+				const config =
+					item === key || !isRequiredVersion(item)
+						? {
+								import: item
+							}
+						: {
+								import: key,
+								requiredVersion: item
+							};
+				return config;
+			},
+			item => item
+		);
+		/** @type {Record<string, ConsumesConfig>[]} */
+		const consumes = sharedOptions.map(([key, options]) => ({
+			[key]: {
+				import: options.import,
+				shareKey: options.shareKey || key,
+				shareScope: options.shareScope,
+				requiredVersion: options.requiredVersion,
+				strictVersion: options.strictVersion,
+				singleton: options.singleton,
+				packageName: options.packageName,
+				eager: options.eager
+			}
+		}));
+		/** @type {Record<string, ProvidesConfig>[]} */
+		const provides = sharedOptions
+			.filter(([, options]) => options.import !== false)
+			.map(([key, options]) => ({
+				[options.import || key]: {
+					shareKey: options.shareKey || key,
+					shareScope: options.shareScope,
+					version: options.version,
+					eager: options.eager
+				}
+			}));
+		this._shareScope = options.shareScope;
+		this._consumes = consumes;
+		this._provides = provides;
+	}
+
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		new ConsumeSharedPlugin({
+			shareScope: this._shareScope,
+			consumes: this._consumes
+		}).apply(compiler);
+		new ProvideSharedPlugin({
+			shareScope: this._shareScope,
+			provides: this._provides
+		}).apply(compiler);
+	}
+}
+
+module.exports = SharePlugin;