GetMainFilenameRuntimeModule.js
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	/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	*/

	"use strict";

	const RuntimeGlobals = require("../RuntimeGlobals");
	const RuntimeModule = require("../RuntimeModule");
	const Template = require("../Template");

	/** @typedef {import("../Compilation")} Compilation */

	class GetMainFilenameRuntimeModule extends RuntimeModule {
	/**
	* @param {string} name readable name
	* @param {string} global global object binding
	* @param {string} filename main file name
	*/
	constructor(name, global, filename) {
	super(`get ${name} filename`);
	this.global = global;
	this.filename = filename;
	}

	/**
	* @returns {string} runtime code
	*/
	generate() {
	const { global, filename, compilation, chunk } = this;
	const { runtimeTemplate } = compilation;
	const url = compilation.getPath(JSON.stringify(filename), {
	hash: `" + ${RuntimeGlobals.getFullHash}() + "`,
	hashWithLength: length =>
	`" + ${RuntimeGlobals.getFullHash}().slice(0, ${length}) + "`,
	chunk,
	runtime: chunk.runtime
	});
	return Template.asString([
	`${global} = ${runtimeTemplate.returningFunction(url)};`
	]);
	}
	}

	module.exports = GetMainFilenameRuntimeModule;