npm and error messages

node_modules/webpack/lib/ModuleBuildError.js

@@ -0,0 +1,42 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const WebpackError = require("./WebpackError");
+const cutOffLoaderExecution = require("./ErrorHelpers").cutOffLoaderExecution;
+
+class ModuleBuildError extends WebpackError {
+	constructor(module, err) {
+		super();
+
+		this.name = "ModuleBuildError";
+		this.message = "Module build failed: ";
+		if(err !== null && typeof err === "object") {
+			if(typeof err.stack === "string" && err.stack) {
+				var stack = cutOffLoaderExecution(err.stack);
+				if(!err.hideStack) {
+					this.message += stack;
+				} else {
+					this.details = stack;
+					if(typeof err.message === "string" && err.message) {
+						this.message += err.message;
+					} else {
+						this.message += err;
+					}
+				}
+			} else if(typeof err.message === "string" && err.message) {
+				this.message += err.message;
+			} else {
+				this.message += err;
+			}
+		}
+		this.module = module;
+		this.error = err;
+
+		Error.captureStackTrace(this, this.constructor);
+	}
+}
+
+module.exports = ModuleBuildError;