mirror of https://github.com/webpack/webpack.git
71 lines
2.2 KiB
JavaScript
71 lines
2.2 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Natsu @xiaoxiaojx
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*/
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"use strict";
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const { updateHashForEntryStartup } = require("./StartupHelpers");
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/** @typedef {import("../ChunkGraph")} ChunkGraph */
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/** @typedef {import("../Module")} Module */
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/** @typedef {import("../Chunk")} Chunk */
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/** @typedef {import("../Entrypoint")} Entrypoint */
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/** @typedef {import("../util/Hash")} Hash */
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/** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
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/**
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* Gets information about a chunk including its entries and runtime chunk
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* @param {Chunk} chunk The chunk to get information for
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* @param {ChunkGraph} chunkGraph The chunk graph containing the chunk
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* @returns {{entries: Array<[Module, Entrypoint | undefined]>, runtimeChunk: Chunk|null}} Object containing chunk entries and runtime chunk
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*/
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function getChunkInfo(chunk, chunkGraph) {
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const entries = [
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...chunkGraph.getChunkEntryModulesWithChunkGroupIterable(chunk)
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];
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const runtimeChunk =
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entries.length > 0
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? /** @type {Entrypoint[][]} */
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(entries)[0][1].getRuntimeChunk()
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: null;
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return {
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entries,
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runtimeChunk
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};
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}
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/**
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* Creates a chunk hash handler
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* @param {string} name The name of the chunk
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* @returns {(chunk: Chunk, hash: Hash, { chunkGraph }: ChunkHashContext) => void} The chunk hash handler
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*/
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function createChunkHashHandler(name) {
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/**
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* @param {Chunk} chunk The chunk to get information for
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* @param {Hash} hash The hash to update
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* @param {ChunkHashContext} chunkHashContext The chunk hash context
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* @returns {void}
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*/
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return (chunk, hash, { chunkGraph }) => {
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if (chunk.hasRuntime()) return;
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const { entries, runtimeChunk } = getChunkInfo(chunk, chunkGraph);
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hash.update(name);
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hash.update("1");
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if (runtimeChunk && runtimeChunk.hash) {
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// https://github.com/webpack/webpack/issues/19439
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// Any change to runtimeChunk should trigger a hash update,
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// we shouldn't depend on or inspect its internal implementation.
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// import __webpack_require__ from "./runtime-main.e9400aee33633a3973bd.js";
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hash.update(runtimeChunk.hash);
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}
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updateHashForEntryStartup(hash, chunkGraph, entries, chunk);
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};
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}
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module.exports = {
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createChunkHashHandler,
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getChunkInfo
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};
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