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

	"use strict";

	const InitFragment = require("../InitFragment");
	const RuntimeGlobals = require("../RuntimeGlobals");

	/** @typedef {import("webpack-sources").Source} Source */
	/** @typedef {import("../Generator").GenerateContext} GenerateContext */

	class AwaitDependenciesInitFragment extends InitFragment {
	/**
	* @param {Set<string>} promises the promises that should be awaited
	*/
	constructor(promises) {
	super(
	undefined,
	InitFragment.STAGE_ASYNC_DEPENDENCIES,
	0,
	"await-dependencies"
	);
	this.promises = promises;
	}

	merge(other) {
	const promises = new Set(this.promises);
	for (const p of other.promises) {
	promises.add(p);
	}
	return new AwaitDependenciesInitFragment(promises);
	}

	/**
	* @param {GenerateContext} generateContext context for generate
	* @returns {string\|Source} the source code that will be included as initialization code
	*/
	getContent({ runtimeRequirements }) {
	runtimeRequirements.add(RuntimeGlobals.module);
	const promises = this.promises;
	if (promises.size === 0) {
	return "";
	}
	if (promises.size === 1) {
	for (const p of promises) {
	return `${p} = await Promise.resolve(${p});\n`;
	}
	}
	const sepPromises = Array.from(promises).join(", ");
	return `([${sepPromises}] = await Promise.all([${sepPromises}]));\n`;
	}
	}

	module.exports = AwaitDependenciesInitFragment;