/* Soot - a J*va Optimization Framework
* Copyright (C) 1997-1999 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.jimple;
import soot.tagkit.*;
import soot.*;
import java.util.*;
public abstract class Constant implements Value, Immediate
{
public List getUseBoxes()
{
return AbstractUnit.emptyList;
}
/** Adds a Baf instruction pushing this constant to the stack onto <code>out</code>. */
/** Clones the current constant. Not implemented here. */
public Object clone()
{
throw new RuntimeException();
}
/** Returns true if this object is structurally equivalent to c.
* For Constants, equality is structural equality, so we just call equals(). */
public boolean equivTo(Object c)
{
return equals(c);
}
/** Returns a hash code consistent with structural equality for this object.
* For Constants, equality is structural equality; we hope that each subclass defines hashCode() correctly. */
public int equivHashCode()
{
return hashCode();
}
public void toString( UnitPrinter up ) {
up.constant(this);
}
}