webpack/lib/hmr/HotModuleReplacementRuntimeModule.js

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports 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
	Author Tobias Koppers @sokra
*/

"use strict";

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

class HotModuleReplacementRuntimeModule extends RuntimeModule {
	constructor() {
		super("hot module replacement", RuntimeModule.STAGE_BASIC);
	}

	/**
	 * @returns {string | null} runtime code
	 */
	generate() {
		return Template.getFunctionContent(
			require("./HotModuleReplacement.runtime.js")
		)
			.replace(
				/\$interceptModuleExecution\$/g,
				RuntimeGlobals.interceptModuleExecution
			)
			.replace(/\$moduleCache\$/g, RuntimeGlobals.moduleCache)
			.replace(/\$hmrModuleData\$/g, RuntimeGlobals.hmrModuleData)
			.replace(/\$hmrDownloadManifest\$/g, RuntimeGlobals.hmrDownloadManifest)
			.replace(
				/\$hmrInvalidateModuleHandlers\$/g,
				RuntimeGlobals.hmrInvalidateModuleHandlers
			)
			.replace(
				/\$hmrDownloadUpdateHandlers\$/g,
				RuntimeGlobals.hmrDownloadUpdateHandlers
			);
	}
}

module.exports = HotModuleReplacementRuntimeModule;