error.js 1.8 KB

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  1. // Copyright 2009 The Closure Library Authors. All Rights Reserved.
  2. //
  3. // Licensed under the Apache License, Version 2.0 (the "License");
  4. // you may not use this file except in compliance with the License.
  5. // You may obtain a copy of the License at
  6. //
  7. // http://www.apache.org/licenses/LICENSE-2.0
  8. //
  9. // Unless required by applicable law or agreed to in writing, software
  10. // distributed under the License is distributed on an "AS-IS" BASIS,
  11. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12. // See the License for the specific language governing permissions and
  13. // limitations under the License.
  14. /**
  15. * @fileoverview Provides a base class for custom Error objects such that the
  16. * stack is correctly maintained.
  17. *
  18. * You should never need to throw goog.debug.Error(msg) directly, Error(msg) is
  19. * sufficient.
  20. *
  21. */
  22. goog.provide('goog.debug.Error');
  23. /**
  24. * Base class for custom error objects.
  25. * @param {*=} opt_msg The message associated with the error.
  26. * @constructor
  27. * @extends {Error}
  28. */
  29. goog.debug.Error = function(opt_msg) {
  30. // Attempt to ensure there is a stack trace.
  31. if (Error.captureStackTrace) {
  32. Error.captureStackTrace(this, goog.debug.Error);
  33. } else {
  34. var stack = new Error().stack;
  35. if (stack) {
  36. this.stack = stack;
  37. }
  38. }
  39. if (opt_msg) {
  40. this.message = String(opt_msg);
  41. }
  42. /**
  43. * Whether to report this error to the server. Setting this to false will
  44. * cause the error reporter to not report the error back to the server,
  45. * which can be useful if the client knows that the error has already been
  46. * logged on the server.
  47. * @type {boolean}
  48. */
  49. this.reportErrorToServer = true;
  50. };
  51. goog.inherits(goog.debug.Error, Error);
  52. /** @override */
  53. goog.debug.Error.prototype.name = 'CustomError';