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ContainerReferencePlugin.js
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Mon, Jul 7, 09:17

ContainerReferencePlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra and Zackary Jackson @ScriptedAlchemy
*/
"use strict";
const { validate } = require("schema-utils");
const schema = require("../../schemas/plugins/container/ContainerReferencePlugin.json");
const ExternalsPlugin = require("../ExternalsPlugin");
const RuntimeGlobals = require("../RuntimeGlobals");
const FallbackDependency = require("./FallbackDependency");
const FallbackItemDependency = require("./FallbackItemDependency");
const FallbackModuleFactory = require("./FallbackModuleFactory");
const RemoteModule = require("./RemoteModule");
const RemoteRuntimeModule = require("./RemoteRuntimeModule");
const RemoteToExternalDependency = require("./RemoteToExternalDependency");
const { parseOptions } = require("./options");
/** @typedef {import("../../declarations/plugins/container/ContainerReferencePlugin").ContainerReferencePluginOptions} ContainerReferencePluginOptions */
/** @typedef {import("../../declarations/plugins/container/ContainerReferencePlugin").RemotesConfig} RemotesConfig */
/** @typedef {import("../Compiler")} Compiler */
const slashCode = "/".charCodeAt(0);
class ContainerReferencePlugin {
/**
* @param {ContainerReferencePluginOptions} options options
*/
constructor(options) {
validate(schema, options, { name: "Container Reference Plugin" });
this._remoteType = options.remoteType;
this._remotes = parseOptions(
options.remotes,
item => ({
external: Array.isArray(item) ? item : [item],
shareScope: options.shareScope || "default"
}),
item => ({
external: Array.isArray(item.external)
? item.external
: [item.external],
shareScope: item.shareScope || options.shareScope || "default"
})
);
}
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
const { _remotes: remotes, _remoteType: remoteType } = this;
/** @type {Record<string, string>} */
const remoteExternals = {};
for (const [key, config] of remotes) {
let i = 0;
for (const external of config.external) {
if (external.startsWith("internal ")) continue;
remoteExternals[
`webpack/container/reference/${key}${i ? `/fallback-${i}` : ""}`
] = external;
i++;
}
}
new ExternalsPlugin(remoteType, remoteExternals).apply(compiler);
compiler.hooks.compilation.tap(
"ContainerReferencePlugin",
(compilation, { normalModuleFactory }) => {
compilation.dependencyFactories.set(
RemoteToExternalDependency,
normalModuleFactory
);
compilation.dependencyFactories.set(
FallbackItemDependency,
normalModuleFactory
);
compilation.dependencyFactories.set(
FallbackDependency,
new FallbackModuleFactory()
);
normalModuleFactory.hooks.factorize.tap(
"ContainerReferencePlugin",
data => {
if (!data.request.includes("!")) {
for (const [key, config] of remotes) {
if (
data.request.startsWith(`${key}`) &&
(data.request.length === key.length ||
data.request.charCodeAt(key.length) === slashCode)
) {
return new RemoteModule(
data.request,
config.external.map((external, i) =>
external.startsWith("internal ")
? external.slice(9)
: `webpack/container/reference/${key}${
i ? `/fallback-${i}` : ""
}`
),
`.${data.request.slice(key.length)}`,
config.shareScope
);
}
}
}
}
);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.ensureChunkHandlers)
.tap("ContainerReferencePlugin", (chunk, set) => {
set.add(RuntimeGlobals.module);
set.add(RuntimeGlobals.moduleFactoriesAddOnly);
set.add(RuntimeGlobals.hasOwnProperty);
set.add(RuntimeGlobals.initializeSharing);
set.add(RuntimeGlobals.shareScopeMap);
compilation.addRuntimeModule(chunk, new RemoteRuntimeModule());
});
}
);
}
}
module.exports = ContainerReferencePlugin;

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