DllPlugin.js
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	/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
	*/

	"use strict";

	const DllEntryPlugin = require("./DllEntryPlugin");
	const FlagAllModulesAsUsedPlugin = require("./FlagAllModulesAsUsedPlugin");
	const LibManifestPlugin = require("./LibManifestPlugin");

	const { validate } = require("schema-utils");
	const schema = require("../schemas/plugins/DllPlugin.json");

	/** @typedef {import("../declarations/plugins/DllPlugin").DllPluginOptions} DllPluginOptions */
	/** @typedef {import("./Compiler")} Compiler */

	class DllPlugin {
	/**
	* @param {DllPluginOptions} options options object
	*/
	constructor(options) {
	validate(schema, options, {
	name: "Dll Plugin",
	baseDataPath: "options"
	});
	this.options = {
	...options,
	entryOnly: options.entryOnly !== false
	};
	}

	/**
	* Apply the plugin
	* @param {Compiler} compiler the compiler instance
	* @returns {void}
	*/
	apply(compiler) {
	compiler.hooks.entryOption.tap("DllPlugin", (context, entry) => {
	if (typeof entry !== "function") {
	for (const name of Object.keys(entry)) {
	const options = {
	name,
	filename: entry.filename
	};
	new DllEntryPlugin(context, entry[name].import, options).apply(
	compiler
	);
	}
	} else {
	throw new Error(
	"DllPlugin doesn't support dynamic entry (function) yet"
	);
	}
	return true;
	});
	new LibManifestPlugin(this.options).apply(compiler);
	if (!this.options.entryOnly) {
	new FlagAllModulesAsUsedPlugin("DllPlugin").apply(compiler);
	}
	}
	}

	module.exports = DllPlugin;