1 files changed, 57 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/AutomaticPrefetchPlugin.js b/node_modules/webpack/lib/AutomaticPrefetchPlugin.js
new file mode 100644
index 0000000..2d0db16
--- /dev/null
+++ b/node_modules/webpack/lib/AutomaticPrefetchPlugin.js
@@ -0,0 +1,57 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const asyncLib = require("neo-async");
+const PrefetchDependency = require("./dependencies/PrefetchDependency");
+const NormalModule = require("./NormalModule");
+
+/** @typedef {import("./Compiler")} Compiler */
+
+class AutomaticPrefetchPlugin {
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler Webpack Compiler
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.compilation.tap(
+			"AutomaticPrefetchPlugin",
+			(compilation, { normalModuleFactory }) => {
+				compilation.dependencyFactories.set(
+					PrefetchDependency,
+					normalModuleFactory
+				);
+			}
+		);
+		let lastModules = null;
+		compiler.hooks.afterCompile.tap("AutomaticPrefetchPlugin", compilation => {
+			lastModules = compilation.modules
+				.filter(m => m instanceof NormalModule)
+				.map((/** @type {NormalModule} */ m) => ({
+					context: m.context,
+					request: m.request
+				}));
+		});
+		compiler.hooks.make.tapAsync(
+			"AutomaticPrefetchPlugin",
+			(compilation, callback) => {
+				if (!lastModules) return callback();
+				asyncLib.forEach(
+					lastModules,
+					(m, callback) => {
+						compilation.prefetch(
+							m.context || compiler.context,
+							new PrefetchDependency(m.request),
+							callback
+						);
+					},
+					callback
+				);
+			}
+		);
+	}
+}
+module.exports = AutomaticPrefetchPlugin;