source: trip-planner-front/node_modules/webpack/lib/runtime/EnsureChunkRuntimeModule.js@ eed0bf8

Last change on this file since eed0bf8 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.7 KB
Line 
1/*
2 MIT License http://www.opensource.org/licenses/mit-license.php
3*/
4
5"use strict";
6
7const RuntimeGlobals = require("../RuntimeGlobals");
8const RuntimeModule = require("../RuntimeModule");
9const Template = require("../Template");
10
11class EnsureChunkRuntimeModule extends RuntimeModule {
12 constructor(runtimeRequirements) {
13 super("ensure chunk");
14 this.runtimeRequirements = runtimeRequirements;
15 }
16
17 /**
18 * @returns {string} runtime code
19 */
20 generate() {
21 const { runtimeTemplate } = this.compilation;
22 // Check if there are non initial chunks which need to be imported using require-ensure
23 if (this.runtimeRequirements.has(RuntimeGlobals.ensureChunkHandlers)) {
24 const handlers = RuntimeGlobals.ensureChunkHandlers;
25 return Template.asString([
26 `${handlers} = {};`,
27 "// This file contains only the entry chunk.",
28 "// The chunk loading function for additional chunks",
29 `${RuntimeGlobals.ensureChunk} = ${runtimeTemplate.basicFunction(
30 "chunkId",
31 [
32 `return Promise.all(Object.keys(${handlers}).reduce(${runtimeTemplate.basicFunction(
33 "promises, key",
34 [`${handlers}[key](chunkId, promises);`, "return promises;"]
35 )}, []));`
36 ]
37 )};`
38 ]);
39 } else {
40 // There ensureChunk is used somewhere in the tree, so we need an empty requireEnsure
41 // function. This can happen with multiple entrypoints.
42 return Template.asString([
43 "// The chunk loading function for additional chunks",
44 "// Since all referenced chunks are already included",
45 "// in this file, this function is empty here.",
46 `${RuntimeGlobals.ensureChunk} = ${runtimeTemplate.returningFunction(
47 "Promise.resolve()"
48 )};`
49 ]);
50 }
51 }
52}
53
54module.exports = EnsureChunkRuntimeModule;
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