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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/webpack/lib/optimize/OccurrenceChunkOrderPlugin.js
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Diffstat (limited to 'node_modules/webpack/lib/optimize/OccurrenceChunkOrderPlugin.js')
-rw-r--r--node_modules/webpack/lib/optimize/OccurrenceChunkOrderPlugin.js66
1 files changed, 66 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/optimize/OccurrenceChunkOrderPlugin.js b/node_modules/webpack/lib/optimize/OccurrenceChunkOrderPlugin.js
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@@ -0,0 +1,66 @@
+/*
+ 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;