soot.toolkits.graph.InverseGraph Maven / Gradle / Ivy
/* Soot - a J*va Optimization Framework
* Copyright (C) 2007 Eric Bodden
*
* 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.
*/
package soot.toolkits.graph;
import java.util.Iterator;
import java.util.List;
/**
* An inverted graph of a directed graph.
*
* @author Eric Bodden
*/
public class InverseGraph implements DirectedGraph {
protected final DirectedGraph g;
public InverseGraph(DirectedGraph g) {
this.g = g;
}
/**
* {@inheritDoc}
*/
public List getHeads() {
return g.getTails();
}
/**
* {@inheritDoc}
*/
public List getPredsOf(N s) {
return g.getSuccsOf(s);
}
/**
* {@inheritDoc}
*/
public List getSuccsOf(N s) {
return g.getPredsOf(s);
}
/**
* {@inheritDoc}
*/
public List getTails() {
return g.getHeads();
}
/**
* {@inheritDoc}
*/
public Iterator iterator() {
return g.iterator();
}
/**
* {@inheritDoc}
*/
public int size() {
return g.size();
}
}