You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.0 KiB
66 lines
2.0 KiB
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
"use strict";
|
|
|
|
const validateOptions = require("schema-utils");
|
|
const schema = require("../../schemas/plugins/optimize/OccurrenceOrderChunkIdsPlugin.json");
|
|
|
|
/** @typedef {import("../../declarations/plugins/optimize/OccurrenceOrderChunkIdsPlugin").OccurrenceOrderChunkIdsPluginOptions} OccurrenceOrderChunkIdsPluginOptions */
|
|
|
|
class OccurrenceOrderChunkIdsPlugin {
|
|
/**
|
|
* @param {OccurrenceOrderChunkIdsPluginOptions=} options options object
|
|
*/
|
|
constructor(options = {}) {
|
|
validateOptions(schema, options, "Occurrence Order Chunk Ids Plugin");
|
|
this.options = options;
|
|
}
|
|
|
|
apply(compiler) {
|
|
const prioritiseInitial = this.options.prioritiseInitial;
|
|
compiler.hooks.compilation.tap(
|
|
"OccurrenceOrderChunkIdsPlugin",
|
|
compilation => {
|
|
compilation.hooks.optimizeChunkOrder.tap(
|
|
"OccurrenceOrderChunkIdsPlugin",
|
|
chunks => {
|
|
const occursInInitialChunksMap = new Map();
|
|
const originalOrder = new Map();
|
|
|
|
let i = 0;
|
|
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);
|
|
originalOrder.set(c, i++);
|
|
}
|
|
|
|
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;
|
|
const orgA = originalOrder.get(a);
|
|
const orgB = originalOrder.get(b);
|
|
return orgA - orgB;
|
|
});
|
|
}
|
|
);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
module.exports = OccurrenceOrderChunkIdsPlugin;
|
|
|