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

	"use strict";

	const Dependency = require("../Dependency");
	const makeSerializable = require("../util/makeSerializable");

	class FallbackDependency extends Dependency {
	constructor(requests) {
	super();
	this.requests = requests;
	}

	/**
	* @returns {string \| null} an identifier to merge equal requests
	*/
	getResourceIdentifier() {
	return `fallback ${this.requests.join(" ")}`;
	}

	get type() {
	return "fallback";
	}

	get category() {
	return "esm";
	}

	serialize(context) {
	const { write } = context;
	write(this.requests);
	super.serialize(context);
	}

	static deserialize(context) {
	const { read } = context;
	const obj = new FallbackDependency(read());
	obj.deserialize(context);
	return obj;
	}
	}

	makeSerializable(
	FallbackDependency,
	"webpack/lib/container/FallbackDependency"
	);

	module.exports = FallbackDependency;