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rOACCT/node_modules/webpack/lib/prefetch/ChunkPreloadTriggerRuntimeModule.js
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ChunkPreloadTriggerRuntimeModule.js
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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("../RuntimeTemplate")} RuntimeTemplate */

			class ChunkPreloadTriggerRuntimeModule extends RuntimeModule {
			/**
			* @param {Record<string\|number, (string\|number)[]>} chunkMap map from chunk to chunks
			*/
			constructor(chunkMap) {
			super(`chunk preload trigger`, RuntimeModule.STAGE_TRIGGER);
			this.chunkMap = chunkMap;
			}

			/**
			* @returns {string} runtime code
			*/
			generate() {
			const { chunkMap } = this;
			const { runtimeTemplate } = this.compilation;
			const body = [
			"var chunks = chunkToChildrenMap[chunkId];",
			`Array.isArray(chunks) && chunks.map(${RuntimeGlobals.preloadChunk});`
			];
			return Template.asString([
			Template.asString([
			`var chunkToChildrenMap = ${JSON.stringify(chunkMap, null, "\t")};`,
			`${
			RuntimeGlobals.ensureChunkHandlers
			}.preload = ${runtimeTemplate.basicFunction("chunkId", body)};`
			])
			]);
			}
			}

			module.exports = ChunkPreloadTriggerRuntimeModule;