1 files changed, 46 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/prefetch/ChunkPrefetchFunctionRuntimeModule.js b/node_modules/webpack/lib/prefetch/ChunkPrefetchFunctionRuntimeModule.js
new file mode 100644
index 00000000..a330b4a4
--- /dev/null
+++ b/node_modules/webpack/lib/prefetch/ChunkPrefetchFunctionRuntimeModule.js
@@ -0,0 +1,46 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+*/
+
+"use strict";
+
+const RuntimeModule = require("../RuntimeModule");
+const Template = require("../Template");
+
+/** @typedef {import("../Compilation")} Compilation */
+/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
+
+class ChunkPrefetchFunctionRuntimeModule extends RuntimeModule {
+	/**
+	 * @param {string} childType TODO
+	 * @param {string} runtimeFunction TODO
+	 * @param {string} runtimeHandlers TODO
+	 */
+	constructor(childType, runtimeFunction, runtimeHandlers) {
+		super(`chunk ${childType} function`);
+		this.childType = childType;
+		this.runtimeFunction = runtimeFunction;
+		this.runtimeHandlers = runtimeHandlers;
+	}
+
+	/**
+	 * @returns {string | null} runtime code
+	 */
+	generate() {
+		const { runtimeFunction, runtimeHandlers } = this;
+		const compilation = /** @type {Compilation} */ (this.compilation);
+		const { runtimeTemplate } = compilation;
+		return Template.asString([
+			`${runtimeHandlers} = {};`,
+			`${runtimeFunction} = ${runtimeTemplate.basicFunction("chunkId", [
+				// map is shorter than forEach
+				`Object.keys(${runtimeHandlers}).map(${runtimeTemplate.basicFunction(
+					"key",
+					`${runtimeHandlers}[key](chunkId);`
+				)});`
+			])}`
+		]);
+	}
+}
+
+module.exports = ChunkPrefetchFunctionRuntimeModule;