package votorola.g.lang; // Copyright 2006, Michael Allan.  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Votorola Software"), to deal in the Votorola Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Votorola Software, and to permit persons to whom the Votorola Software is furnished to do so, subject to the following conditions: The preceding copyright notice and this permission notice shall be included in all copies or substantial portions of the Votorola Software. THE VOTOROLA SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE VOTOROLA SOFTWARE OR THE USE OR OTHER DEALINGS IN THE VOTOROLA SOFTWARE.

import java.lang.reflect.UndeclaredThrowableException;


/** A null implementation of a catcher that re-throws all errors and exceptions.
  */
public @ThreadSafe final class Catcher0R<S> implements Catcher<S>
{

    private Catcher0R() {}



    /** The single instance of Catcher0R.
      */
      @SuppressWarnings( "unchecked" )
    public static <S> Catcher0R<S> i() { return (Catcher0R<S>)instance; }



   // - C a t c h e r --------------------------------------------------------------------


    /** Immediately re-throws the error.  Subclasses that override this method would
      * normally also re-throw it (or call super.catchError) taking care not to drop it
      * first.
      */
    public void catchError( S source, Error r ) { throw r; }



    /** Immediately re-throws the exception.  If it is not a RuntimeException, then it is
      * first wrapped as an {@linkplain java.lang.reflect.UndeclaredThrowableException
      * UndeclaredThrowableException}.
      */
    public void catchException( S source, Exception x )
    {
        if( x instanceof RuntimeException ) throw (RuntimeException)x;
        else throw new UndeclaredThrowableException( x );
    }



//////////////////////////////////////////////////////////////////////////////////////////
// Last, so static fields above initialize, and are available during instantiation below


    private static final Catcher0R<Object> instance = new Catcher0R<Object>();



}