qxtj

qx

2025-08-06 fcc0076c3507bc4e544c3cb3915204937fa46f60

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
 
"use strict";
 
const RuntimeGlobals = require("../RuntimeGlobals");
const ExportWebpackRequireRuntimeModule = require("./ExportWebpackRequireRuntimeModule");
const ModuleChunkLoadingRuntimeModule = require("./ModuleChunkLoadingRuntimeModule");
 
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compiler")} Compiler */
 
const PLUGIN_NAME = "ModuleChunkLoadingPlugin";
 
class ModuleChunkLoadingPlugin {
    /**
     * Apply the plugin
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => {
            const globalChunkLoading = compilation.outputOptions.chunkLoading;
            /**
             * @param {Chunk} chunk chunk to check
             * @returns {boolean} true, when the plugin is enabled for the chunk
             */
            const isEnabledForChunk = (chunk) => {
                const options = chunk.getEntryOptions();
                const chunkLoading =
                    options && options.chunkLoading !== undefined
                        ? options.chunkLoading
                        : globalChunkLoading;
                return chunkLoading === "import";
            };
            const onceForChunkSet = new WeakSet();
            /**
             * @param {Chunk} chunk chunk to check
             * @param {Set<string>} set runtime requirements
             */
            const handler = (chunk, set) => {
                if (onceForChunkSet.has(chunk)) return;
                onceForChunkSet.add(chunk);
                if (!isEnabledForChunk(chunk)) return;
                set.add(RuntimeGlobals.moduleFactoriesAddOnly);
                set.add(RuntimeGlobals.hasOwnProperty);
                compilation.addRuntimeModule(
                    chunk,
                    new ModuleChunkLoadingRuntimeModule(set)
                );
            };
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.ensureChunkHandlers)
                .tap(PLUGIN_NAME, handler);
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.baseURI)
                .tap(PLUGIN_NAME, handler);
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.externalInstallChunk)
                .tap(PLUGIN_NAME, handler);
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.onChunksLoaded)
                .tap(PLUGIN_NAME, handler);
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.hmrDownloadUpdateHandlers)
                .tap(PLUGIN_NAME, handler);
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.hmrDownloadManifest)
                .tap(PLUGIN_NAME, handler);
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.externalInstallChunk)
                .tap(PLUGIN_NAME, (chunk, set, { chunkGraph }) => {
                    if (!isEnabledForChunk(chunk)) return;
                    // If a chunk contains an entryModule, all exports are determined by the entryModule.
                    // The ExportWebpackRequireRuntimeModule is for internal use only and not exposed to users.
                    if (chunkGraph.getNumberOfEntryModules(chunk) > 0) return;
                    compilation.addRuntimeModule(
                        chunk,
                        new ExportWebpackRequireRuntimeModule()
                    );
                });
 
            // We need public path only when we prefetch/preload chunk or public path is not `auto`
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.prefetchChunkHandlers)
                .tap(PLUGIN_NAME, (chunk, set) => {
                    if (!isEnabledForChunk(chunk)) return;
                    set.add(RuntimeGlobals.publicPath);
                });
 
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.preloadChunkHandlers)
                .tap(PLUGIN_NAME, (chunk, set) => {
                    if (!isEnabledForChunk(chunk)) return;
                    set.add(RuntimeGlobals.publicPath);
                });
 
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.ensureChunkHandlers)
                .tap(PLUGIN_NAME, (chunk, set) => {
                    if (!isEnabledForChunk(chunk)) return;
 
                    if (compilation.outputOptions.publicPath !== "auto") {
                        set.add(RuntimeGlobals.publicPath);
                    }
 
                    set.add(RuntimeGlobals.getChunkScriptFilename);
                });
 
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.hmrDownloadUpdateHandlers)
                .tap(PLUGIN_NAME, (chunk, set) => {
                    if (!isEnabledForChunk(chunk)) return;
                    set.add(RuntimeGlobals.publicPath);
                    set.add(RuntimeGlobals.loadScript);
                    set.add(RuntimeGlobals.getChunkUpdateScriptFilename);
                    set.add(RuntimeGlobals.moduleCache);
                    set.add(RuntimeGlobals.hmrModuleData);
                    set.add(RuntimeGlobals.moduleFactoriesAddOnly);
                });
 
            compilation.hooks.runtimeRequirementInTree
                .for(RuntimeGlobals.hmrDownloadManifest)
                .tap(PLUGIN_NAME, (chunk, set) => {
                    if (!isEnabledForChunk(chunk)) return;
                    set.add(RuntimeGlobals.publicPath);
                    set.add(RuntimeGlobals.getUpdateManifestFilename);
                });
 
            compilation.hooks.additionalTreeRuntimeRequirements.tap(
                PLUGIN_NAME,
                (chunk, set, { chunkGraph }) => {
                    if (chunkGraph.hasChunkEntryDependentChunks(chunk)) {
                        set.add(RuntimeGlobals.externalInstallChunk);
                    }
                }
            );
        });
    }
}
 
module.exports = ModuleChunkLoadingPlugin;