webpack/lib/runtime/GetMainFilenameRuntimeModule.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	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;