com.google.gwt.emul.java.lang.JsException Maven / Gradle / Ivy
/*
* 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);
}
}