/* Soot - a J*va Optimization Framework
* Copyright (C) 2005 Antoine Mine
*
* 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.
*/
/**
* Implementation of the paper "A Combined Pointer and Purity Analysis for
* Java Programs" by Alexandru Salcianu and Martin Rinard, within the
* Soot Optimization Framework.
*
* by Antoine Mine, 2005/01/24
*/
package soot.jimple.toolkits.annotation.purity;
import soot.*;
import java.util.*;
/**
* Kind of Stmt inside node, but global to the method.
* Used for synthetic summary of unalysed methods returning a fresh object.
*/
public class PurityMethodNode implements PurityNode
{
/** Method that created the node */
private SootMethod id;
/** gives a unique id, for pretty-printing purposes */
private static final Map<SootMethod, Integer> nMap = new HashMap<SootMethod, Integer>();
private static int n = 0;
PurityMethodNode(SootMethod id)
{
this.id = id;
if (!nMap.containsKey(id)) { nMap.put(id,new Integer(n)); n++; }
}
public String toString()
{
return "M_"+nMap.get(id);
//return ""+id;
}
public int hashCode()
{ return id.hashCode(); }
public boolean equals(Object o)
{
if (o instanceof PurityMethodNode) {
PurityMethodNode oo = (PurityMethodNode)o;
return id.equals(oo.id);
}
else return false;
}
public boolean isInside()
{ return true; }
public boolean isLoad()
{ return false; }
public boolean isParam()
{ return false; }
}