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lib/prefetch/ChunkPrefetchTriggerRuntimeModule.js
56 строк
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Alexander Akait
test: make them stable (#20898)
30 апр 2026, 22:33
Не верифицирован
30 апр 2026, 22:33
25f937c
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/* MIT License http://www.opensource.org/licenses/mit-license.php */ "use strict"; const RuntimeGlobals = require("../RuntimeGlobals"); const RuntimeModule = require("../RuntimeModule"); const Template = require("../Template"); /** @typedef {import("../Compilation")} Compilation */ /** @typedef {import("../Chunk").ChunkChildIdsByOrdersMap} ChunkChildIdsByOrdersMap */ class ChunkPrefetchTriggerRuntimeModule extends RuntimeModule { /** * @param {ChunkChildIdsByOrdersMap} chunkMap map from chunk to */ constructor(chunkMap) { super("chunk prefetch trigger", RuntimeModule.STAGE_TRIGGER); /** @type {ChunkChildIdsByOrdersMap} */ this.chunkMap = chunkMap; } /** * Generates runtime code for this runtime module. * @returns {string | null} runtime code */ generate() { const { chunkMap } = this; const compilation = /** @type {Compilation} */ (this.compilation); const { runtimeTemplate } = compilation; const body = [ "var chunks = chunkToChildrenMap[chunkId];", `Array.isArray(chunks) && chunks.map(${RuntimeGlobals.prefetchChunk});` ]; return Template.asString([ Template.asString([ `var chunkToChildrenMap = ${JSON.stringify(chunkMap, null, "\t")};`, `${ RuntimeGlobals.ensureChunkHandlers }.prefetch = ${runtimeTemplate.expressionFunction( // Prefetch is best-effort; silence rejections so a failed chunk // load (e.g. chunkLoadTimeout) doesn't surface as an unhandled // rejection through this dangling Promise.all chain. `Promise.all(promises).then(${runtimeTemplate.basicFunction( "", body )}, ${runtimeTemplate.basicFunction("", "")})`, "chunkId, promises" )};` ]) ]); } } module.exports = ChunkPrefetchTriggerRuntimeModule;