source: frontend/node_modules/webpack/lib/javascript/ChunkHelpers.js

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

"use strict";

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

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

/**
 * Returns chunks.
 * @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;