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• [DIR] ..
• [FILE] ChunkPrefetchFunctionRuntimeModule.js
• [FILE] ChunkPrefetchPreloadPlugin.js
• [FILE] ChunkPrefetchStartupRuntimeModule.js
• [FILE] ChunkPrefetchTriggerRuntimeModule.js
• [FILE] ChunkPreloadTriggerRuntimeModule.js

Просмотр файла: ChunkPrefetchPreloadPlugin.js

/*
	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;

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