/* Soot - a J*va Optimization Framework
* Copyright (C) 1999 Patrice Pominville
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the Sable Research Group and others 1997-1999.
* See the 'credits' file distributed with Soot for the complete list of
* contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
*/
package soot.baf.toolkits.base;
import java.util.*;
import soot.*;
import soot.baf.*;
/**
* Example peephole that remove all checkcast operations.
* Resulting class will likely not verify.
*/
public class ExamplePeephole implements Peephole
{
public boolean apply(Body b)
{
boolean changed = false;
Iterator it = b.getUnits().iterator();
while(it.hasNext()) {
Unit u = (Unit) it.next();
if(u instanceof InstanceCastInst) {
it.remove();
changed = true;
}
}
return changed;
}
}