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rOACCT/node_modules/webpack/lib/ids/OccurrenceChunkIdsPlugin.js
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OccurrenceChunkIdsPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const { validate } = require("schema-utils");
const schema = require("../../schemas/plugins/ids/OccurrenceChunkIdsPlugin.json");
const { compareChunksNatural } = require("../util/comparators");
const { assignAscendingChunkIds } = require("./IdHelpers");
/** @typedef {import("../../declarations/plugins/ids/OccurrenceChunkIdsPlugin").OccurrenceChunkIdsPluginOptions} OccurrenceChunkIdsPluginOptions */
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../Module")} Module */
class OccurrenceChunkIdsPlugin {
/**
* @param {OccurrenceChunkIdsPluginOptions=} options options object
*/
constructor(options = {}) {
validate(schema, options, {
name: "Occurrence Order Chunk Ids Plugin",
baseDataPath: "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 = occursInInitialChunksMap.get(a);
const bEntryOccurs = 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;
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