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