1 files changed, 89 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/runtime/StartupChunkDependenciesPlugin.js b/node_modules/webpack/lib/runtime/StartupChunkDependenciesPlugin.js
new file mode 100644
index 00000000..3704331a
--- /dev/null
+++ b/node_modules/webpack/lib/runtime/StartupChunkDependenciesPlugin.js
@@ -0,0 +1,89 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+*/
+
+"use strict";
+
+const RuntimeGlobals = require("../RuntimeGlobals");
+const StartupChunkDependenciesRuntimeModule = require("./StartupChunkDependenciesRuntimeModule");
+const StartupEntrypointRuntimeModule = require("./StartupEntrypointRuntimeModule");
+
+/** @typedef {import("../../declarations/WebpackOptions").ChunkLoadingType} ChunkLoadingType */
+/** @typedef {import("../Chunk")} Chunk */
+/** @typedef {import("../Compiler")} Compiler */
+
+/**
+ * @typedef {Object} Options
+ * @property {ChunkLoadingType} chunkLoading
+ * @property {boolean=} asyncChunkLoading
+ */
+
+class StartupChunkDependenciesPlugin {
+	/**
+	 * @param {Options} options options
+	 */
+	constructor(options) {
+		this.chunkLoading = options.chunkLoading;
+		this.asyncChunkLoading =
+			typeof options.asyncChunkLoading === "boolean"
+				? options.asyncChunkLoading
+				: true;
+	}
+
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.thisCompilation.tap(
+			"StartupChunkDependenciesPlugin",
+			compilation => {
+				const globalChunkLoading = compilation.outputOptions.chunkLoading;
+				/**
+				 * @param {Chunk} chunk chunk to check
+				 * @returns {boolean} true, when the plugin is enabled for the chunk
+				 */
+				const isEnabledForChunk = chunk => {
+					const options = chunk.getEntryOptions();
+					const chunkLoading =
+						options && options.chunkLoading !== undefined
+							? options.chunkLoading
+							: globalChunkLoading;
+					return chunkLoading === this.chunkLoading;
+				};
+				compilation.hooks.additionalTreeRuntimeRequirements.tap(
+					"StartupChunkDependenciesPlugin",
+					(chunk, set, { chunkGraph }) => {
+						if (!isEnabledForChunk(chunk)) return;
+						if (chunkGraph.hasChunkEntryDependentChunks(chunk)) {
+							set.add(RuntimeGlobals.startup);
+							set.add(RuntimeGlobals.ensureChunk);
+							set.add(RuntimeGlobals.ensureChunkIncludeEntries);
+							compilation.addRuntimeModule(
+								chunk,
+								new StartupChunkDependenciesRuntimeModule(
+									this.asyncChunkLoading
+								)
+							);
+						}
+					}
+				);
+				compilation.hooks.runtimeRequirementInTree
+					.for(RuntimeGlobals.startupEntrypoint)
+					.tap("StartupChunkDependenciesPlugin", (chunk, set) => {
+						if (!isEnabledForChunk(chunk)) return;
+						set.add(RuntimeGlobals.require);
+						set.add(RuntimeGlobals.ensureChunk);
+						set.add(RuntimeGlobals.ensureChunkIncludeEntries);
+						compilation.addRuntimeModule(
+							chunk,
+							new StartupEntrypointRuntimeModule(this.asyncChunkLoading)
+						);
+					});
+			}
+		);
+	}
+}
+
+module.exports = StartupChunkDependenciesPlugin;