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CommonJsChunkLoadingPlugin.js
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Created
Wed, Feb 5, 02:50

CommonJsChunkLoadingPlugin.js

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RuntimeGlobals = require("../RuntimeGlobals");
const StartupChunkDependenciesPlugin = require("../runtime/StartupChunkDependenciesPlugin");
/** @typedef {import("../Compiler")} Compiler */
class CommonJsChunkLoadingPlugin {
constructor(options) {
options = options || {};
this._asyncChunkLoading = options.asyncChunkLoading;
}
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
const ChunkLoadingRuntimeModule = this._asyncChunkLoading
? require("./ReadFileChunkLoadingRuntimeModule")
: require("./RequireChunkLoadingRuntimeModule");
const chunkLoadingValue = this._asyncChunkLoading
? "async-node"
: "require";
new StartupChunkDependenciesPlugin({
chunkLoading: chunkLoadingValue,
asyncChunkLoading: this._asyncChunkLoading
}).apply(compiler);
compiler.hooks.thisCompilation.tap(
"CommonJsChunkLoadingPlugin",
compilation => {
const globalChunkLoading = compilation.outputOptions.chunkLoading;
const isEnabledForChunk = chunk => {
const options = chunk.getEntryOptions();
const chunkLoading =
(options && options.chunkLoading) || globalChunkLoading;
return chunkLoading === chunkLoadingValue;
};
const onceForChunkSet = new WeakSet();
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 ChunkLoadingRuntimeModule(set)
);
};
compilation.hooks.additionalTreeRuntimeRequirements.tap(
"CommonJsChunkLoadingPlugin",
(chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
if (
Array.from(chunk.getAllReferencedChunks()).some(
c =>
c !== chunk &&
compilation.chunkGraph.getNumberOfEntryModules(c) > 0
)
) {
set.add(RuntimeGlobals.startupEntrypoint);
set.add(RuntimeGlobals.externalInstallChunk);
}
}
);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.ensureChunkHandlers)
.tap("CommonJsChunkLoadingPlugin", handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadUpdateHandlers)
.tap("CommonJsChunkLoadingPlugin", handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadManifest)
.tap("CommonJsChunkLoadingPlugin", handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.baseURI)
.tap("CommonJsChunkLoadingPlugin", handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.ensureChunkHandlers)
.tap("CommonJsChunkLoadingPlugin", (chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
set.add(RuntimeGlobals.getChunkScriptFilename);
});
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadUpdateHandlers)
.tap("CommonJsChunkLoadingPlugin", (chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
set.add(RuntimeGlobals.getChunkUpdateScriptFilename);
set.add(RuntimeGlobals.moduleCache);
set.add(RuntimeGlobals.hmrModuleData);
set.add(RuntimeGlobals.moduleFactoriesAddOnly);
});
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadManifest)
.tap("CommonJsChunkLoadingPlugin", (chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
set.add(RuntimeGlobals.getUpdateManifestFilename);
});
}
);
}
}
module.exports = CommonJsChunkLoadingPlugin;

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