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			85 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			JavaScript
		
	
		
		
			
		
	
	
			85 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			JavaScript
		
	
| 
											9 months ago
										 | /* | ||
|  | 	MIT License http://www.opensource.org/licenses/mit-license.php
 | ||
|  | 	Author Tobias Koppers @sokra | ||
|  | */ | ||
|  | 
 | ||
|  | "use strict"; | ||
|  | 
 | ||
|  | const { compareChunksNatural } = require("../util/comparators"); | ||
|  | const createSchemaValidation = require("../util/create-schema-validation"); | ||
|  | const { assignAscendingChunkIds } = require("./IdHelpers"); | ||
|  | 
 | ||
|  | /** @typedef {import("../../declarations/plugins/ids/OccurrenceChunkIdsPlugin").OccurrenceChunkIdsPluginOptions} OccurrenceChunkIdsPluginOptions */ | ||
|  | /** @typedef {import("../Chunk")} Chunk */ | ||
|  | /** @typedef {import("../Compiler")} Compiler */ | ||
|  | /** @typedef {import("../Module")} Module */ | ||
|  | 
 | ||
|  | const validate = createSchemaValidation( | ||
|  | 	require("../../schemas/plugins/ids/OccurrenceChunkIdsPlugin.check.js"), | ||
|  | 	() => require("../../schemas/plugins/ids/OccurrenceChunkIdsPlugin.json"), | ||
|  | 	{ | ||
|  | 		name: "Occurrence Order Chunk Ids Plugin", | ||
|  | 		baseDataPath: "options" | ||
|  | 	} | ||
|  | ); | ||
|  | 
 | ||
|  | class OccurrenceChunkIdsPlugin { | ||
|  | 	/** | ||
|  | 	 * @param {OccurrenceChunkIdsPluginOptions=} options options object | ||
|  | 	 */ | ||
|  | 	constructor(options = {}) { | ||
|  | 		validate(options); | ||
|  | 		this.options = options; | ||
|  | 	} | ||
|  | 
 | ||
|  | 	/** | ||
|  | 	 * Apply the plugin | ||
|  | 	 * @param {Compiler} compiler the compiler instance | ||
|  | 	 * @returns {void} | ||
|  | 	 */ | ||
|  | 	apply(compiler) { | ||
|  | 		const prioritiseInitial = this.options.prioritiseInitial; | ||
|  | 		compiler.hooks.compilation.tap("OccurrenceChunkIdsPlugin", compilation => { | ||
|  | 			compilation.hooks.chunkIds.tap("OccurrenceChunkIdsPlugin", chunks => { | ||
|  | 				const chunkGraph = compilation.chunkGraph; | ||
|  | 
 | ||
|  | 				/** @type {Map<Chunk, number>} */ | ||
|  | 				const occursInInitialChunksMap = new Map(); | ||
|  | 
 | ||
|  | 				const compareNatural = compareChunksNatural(chunkGraph); | ||
|  | 
 | ||
|  | 				for (const c of chunks) { | ||
|  | 					let occurs = 0; | ||
|  | 					for (const chunkGroup of c.groupsIterable) { | ||
|  | 						for (const parent of chunkGroup.parentsIterable) { | ||
|  | 							if (parent.isInitial()) occurs++; | ||
|  | 						} | ||
|  | 					} | ||
|  | 					occursInInitialChunksMap.set(c, occurs); | ||
|  | 				} | ||
|  | 
 | ||
|  | 				const chunksInOccurrenceOrder = Array.from(chunks).sort((a, b) => { | ||
|  | 					if (prioritiseInitial) { | ||
|  | 						const aEntryOccurs = | ||
|  | 							/** @type {number} */ | ||
|  | 							(occursInInitialChunksMap.get(a)); | ||
|  | 						const bEntryOccurs = | ||
|  | 							/** @type {number} */ | ||
|  | 							(occursInInitialChunksMap.get(b)); | ||
|  | 						if (aEntryOccurs > bEntryOccurs) return -1; | ||
|  | 						if (aEntryOccurs < bEntryOccurs) return 1; | ||
|  | 					} | ||
|  | 					const aOccurs = a.getNumberOfGroups(); | ||
|  | 					const bOccurs = b.getNumberOfGroups(); | ||
|  | 					if (aOccurs > bOccurs) return -1; | ||
|  | 					if (aOccurs < bOccurs) return 1; | ||
|  | 					return compareNatural(a, b); | ||
|  | 				}); | ||
|  | 				assignAscendingChunkIds(chunksInOccurrenceOrder, compilation); | ||
|  | 			}); | ||
|  | 		}); | ||
|  | 	} | ||
|  | } | ||
|  | 
 | ||
|  | module.exports = OccurrenceChunkIdsPlugin; |