| // Copyright 2009 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| /** |
| * @fileoverview Provides a base class for custom Error objects such that the |
| * stack is correctly maintained. |
| * |
| * You should never need to throw goog.debug.Error(msg) directly, Error(msg) is |
| * sufficient. |
| * |
| */ |
| |
| goog.provide('goog.debug.Error'); |
| |
| |
| |
| /** |
| * Base class for custom error objects. |
| * @param {*=} opt_msg The message associated with the error. |
| * @constructor |
| * @extends {Error} |
| */ |
| goog.debug.Error = function(opt_msg) { |
| |
| // Attempt to ensure there is a stack trace. |
| if (Error.captureStackTrace) { |
| Error.captureStackTrace(this, goog.debug.Error); |
| } else { |
| var stack = new Error().stack; |
| if (stack) { |
| this.stack = stack; |
| } |
| } |
| |
| if (opt_msg) { |
| this.message = String(opt_msg); |
| } |
| }; |
| goog.inherits(goog.debug.Error, Error); |
| |
| |
| /** @override */ |
| goog.debug.Error.prototype.name = 'CustomError'; |