AwaitDependenciesInitFragment.js
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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;