webpack/lib/javascript/ChunkHelpers.js

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

const Entrypoint = require("../Entrypoint");

/** @typedef {import("../Chunk")} Chunk */

/**
 * @param {Entrypoint} entrypoint a chunk group
 * @param {(Chunk | null)=} excludedChunk1 current chunk which is excluded
 * @param {(Chunk | null)=} excludedChunk2 runtime chunk which is excluded
 * @returns {Set<Chunk>} chunks
 */
const getAllChunks = (entrypoint, excludedChunk1, excludedChunk2) => {
	/** @type {Set<Entrypoint>} */
	const queue = new Set([entrypoint]);
	/** @type {Set<Entrypoint>} */
	const groups = new Set();
	for (const group of queue) {
		if (group !== entrypoint) {
			groups.add(group);
		}
		for (const parent of group.parentsIterable) {
			if (parent instanceof Entrypoint) queue.add(parent);
		}
	}
	groups.add(entrypoint);

	/** @type {Set<Chunk>} */
	const chunks = new Set();
	for (const group of groups) {
		for (const chunk of group.chunks) {
			if (chunk === excludedChunk1) continue;
			if (chunk === excludedChunk2) continue;
			chunks.add(chunk);
		}
	}
	return chunks;
};

module.exports.getAllChunks = getAllChunks;