refactor(ModuleError): upgrade to ES6 (webpack#3695)

willmendesneto · TheLarkInn · commit 6a2840f10422 · 2017-01-03T12:27:43.000-06:00
diff --git a/lib/ModuleError.js b/lib/ModuleError.js
@@ -2,15 +2,20 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-function ModuleError(module, err) {
-	Error.call(this);
-	Error.captureStackTrace(this, ModuleError);
-	this.name = "ModuleError";
-	this.module = module;
-	this.message = err;
-	this.error = err;
+"use strict";
+
+class ModuleError extends Error {
+
+	constructor(module, err) {
+		super();
+		if(Error.hasOwnProperty("captureStackTrace")) {
+			Error.captureStackTrace(this, this.constructor);
+		}
+		this.name = "ModuleError";
+		this.module = module;
+		this.message = err;
+		this.error = err;
+	}
 }
-module.exports = ModuleError;
 
-ModuleError.prototype = Object.create(Error.prototype);
-ModuleError.prototype.constructor = ModuleError;
+module.exports = ModuleError;
