Firebase Update

express-server/node_modules/create-error-class/index.js

@@ -0,0 +1,44 @@
+'use strict';
+var captureStackTrace = require('capture-stack-trace');
+
+function inherits(ctor, superCtor) {
+	ctor.super_ = superCtor;
+	ctor.prototype = Object.create(superCtor.prototype, {
+		constructor: {
+			value: ctor,
+			enumerable: false,
+			writable: true,
+			configurable: true
+		}
+	});
+}
+
+module.exports = function createErrorClass(className, setup) {
+	if (typeof className !== 'string') {
+		throw new TypeError('Expected className to be a string');
+	}
+
+	if (/[^0-9a-zA-Z_$]/.test(className)) {
+		throw new Error('className contains invalid characters');
+	}
+
+	setup = setup || function (message) {
+		this.message = message;
+	};
+
+	var ErrorClass = function () {
+		Object.defineProperty(this, 'name', {
+			configurable: true,
+			value: className,
+			writable: true
+		});
+
+		captureStackTrace(this, this.constructor);
+
+		setup.apply(this, arguments);
+	};
+
+	inherits(ErrorClass, Error);
+
+	return ErrorClass;
+};