/*
* Copyright 2006 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 com.google.gwt.lang;
import com.google.gwt.core.client.JavaScriptException;
/**
* This is a magic class the compiler uses to throw and check exceptions.
*/
final class Exceptions {
static Object caught(Object e) {
if (e instanceof Throwable) {
return e;
}
return new JavaScriptException(javaScriptExceptionName(e),
javaScriptExceptionDescription(e));
}
/**
* Returns the description of an unexpected JavaScript exception (not a normal
* Java one).
*/
private static native String javaScriptExceptionDescription(Object e) /*-{
return e.message;
}-*/;
/**
* Returns the name of an unexpected JavaScript exception (not a normal Java
* one).
*/
private static native String javaScriptExceptionName(Object e) /*-{
return e.name;
}-*/;
}