/* Soot - a J*va Optimization Framework
 * Copyright (C) 1999 Patrick Lam, Patrick Pominville and Raja Vallee-Rai
 *
 * 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.internal;

import soot.*;
import soot.baf.*;
import soot.util.*;

public class BSwapInst extends AbstractInst implements SwapInst
{

    protected Type mFromType, mToType;
    

    public BSwapInst(Type fromType, Type toType)
    {

        if(fromType instanceof LongType || fromType instanceof DoubleType)
            throw  new RuntimeException("fromType is LongType or DoubleType !");
        if(toType instanceof LongType || toType instanceof DoubleType)
            throw  new RuntimeException("toType is LongType or DoubleType !");
        
        mFromType = Baf.getDescriptorTypeOf(fromType);
        mToType = Baf.getDescriptorTypeOf(toType);
    }

    public Type getFromType()
    {
        return mFromType;
    }
    public void setFromType(Type fromType)
    {
        mFromType = fromType;
    }
    
    public Type getToType()
    {
        return mToType;
    }
    
    public void setToType(Type toType)
    {
        mToType = toType;
    }



    public int getInCount()
    {
        return 2;
    }

    public int getInMachineCount()
    {
        return 2;
    }
    
    public int getOutCount()
    {
        return 2;
    }

    public int getOutMachineCount()
    {
        return 2;
    }
    
    public void apply(Switch sw)
    {
        ((InstSwitch) sw).caseSwapInst(this);
    }   
    
    public String toString()
    {
        return "swap." + Baf.bafDescriptorOf(mFromType)  + Baf.bafDescriptorOf(mToType);
    }
    
    
    public String getName() {return "swap";}
 
    

}