| /* |
| * Copyright 2015 Google Inc. |
| * |
| * 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. |
| */ |
| package java.lang; |
| |
| /** |
| * Abstracts an object thrown natively in JavaScript. Thrown objects are most of the time a |
| * JavaScript Error but not guaranteed to be as JavaScript code can throw anything including |
| * primitives like {@code null}, numbers, etc. |
| */ |
| public class JsException extends RuntimeException { |
| |
| private static final Object UNINITIALIZED = "__noinit__"; |
| |
| private Object backingJsObject = UNINITIALIZED; |
| |
| protected JsException(Object backingJsObject) { |
| super(backingJsObject); |
| this.backingJsObject = backingJsObject; |
| } |
| |
| JsException(String msg) { |
| super(msg); |
| } |
| |
| JsException() { |
| super(); |
| } |
| |
| // Note that this initialization path is only used for J2CL transpiler, not in GWT. |
| @Override |
| void privateInitError(Object error) { |
| super.privateInitError(backingJsObject == UNINITIALIZED ? error : backingJsObject); |
| } |
| } |