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app_vue/node_modules/webpack/lib/prefetch/ChunkPrefetchPreloadPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const RuntimeGlobals = require("../RuntimeGlobals");
+const ChunkPrefetchFunctionRuntimeModule = require("./ChunkPrefetchFunctionRuntimeModule");
+const ChunkPrefetchStartupRuntimeModule = require("./ChunkPrefetchStartupRuntimeModule");
+const ChunkPrefetchTriggerRuntimeModule = require("./ChunkPrefetchTriggerRuntimeModule");
+const ChunkPreloadTriggerRuntimeModule = require("./ChunkPreloadTriggerRuntimeModule");
+
+/** @typedef {import("../Chunk")} Chunk */
+/** @typedef {import("../ChunkGroup").RawChunkGroupOptions} RawChunkGroupOptions */
+/** @typedef {import("../Compiler")} Compiler */
+
+const PLUGIN_NAME = "ChunkPrefetchPreloadPlugin";
+
+class ChunkPrefetchPreloadPlugin {
+	/**
+	 * @param {Compiler} compiler the compiler
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.compilation.tap(PLUGIN_NAME, compilation => {
+			compilation.hooks.additionalChunkRuntimeRequirements.tap(
+				PLUGIN_NAME,
+				(chunk, set, { chunkGraph }) => {
+					if (chunkGraph.getNumberOfEntryModules(chunk) === 0) return;
+					const startupChildChunks = chunk.getChildrenOfTypeInOrder(
+						chunkGraph,
+						"prefetchOrder"
+					);
+					if (startupChildChunks) {
+						set.add(RuntimeGlobals.prefetchChunk);
+						set.add(RuntimeGlobals.onChunksLoaded);
+						set.add(RuntimeGlobals.exports);
+						compilation.addRuntimeModule(
+							chunk,
+							new ChunkPrefetchStartupRuntimeModule(startupChildChunks)
+						);
+					}
+				}
+			);
+			compilation.hooks.additionalTreeRuntimeRequirements.tap(
+				PLUGIN_NAME,
+				(chunk, set, { chunkGraph }) => {
+					const chunkMap = chunk.getChildIdsByOrdersMap(chunkGraph);
+
+					if (chunkMap.prefetch) {
+						set.add(RuntimeGlobals.prefetchChunk);
+						compilation.addRuntimeModule(
+							chunk,
+							new ChunkPrefetchTriggerRuntimeModule(chunkMap.prefetch)
+						);
+					}
+					if (chunkMap.preload) {
+						set.add(RuntimeGlobals.preloadChunk);
+						compilation.addRuntimeModule(
+							chunk,
+							new ChunkPreloadTriggerRuntimeModule(chunkMap.preload)
+						);
+					}
+				}
+			);
+			compilation.hooks.runtimeRequirementInTree
+				.for(RuntimeGlobals.prefetchChunk)
+				.tap(PLUGIN_NAME, (chunk, set) => {
+					compilation.addRuntimeModule(
+						chunk,
+						new ChunkPrefetchFunctionRuntimeModule(
+							"prefetch",
+							RuntimeGlobals.prefetchChunk,
+							RuntimeGlobals.prefetchChunkHandlers
+						)
+					);
+					set.add(RuntimeGlobals.prefetchChunkHandlers);
+				});
+			compilation.hooks.runtimeRequirementInTree
+				.for(RuntimeGlobals.preloadChunk)
+				.tap(PLUGIN_NAME, (chunk, set) => {
+					compilation.addRuntimeModule(
+						chunk,
+						new ChunkPrefetchFunctionRuntimeModule(
+							"preload",
+							RuntimeGlobals.preloadChunk,
+							RuntimeGlobals.preloadChunkHandlers
+						)
+					);
+					set.add(RuntimeGlobals.preloadChunkHandlers);
+				});
+		});
+	}
+}
+
+module.exports = ChunkPrefetchPreloadPlugin;