/*******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.ibm.wala.dataflow.IFDS;
import com.ibm.wala.util.intset.IntSet;
/**
* A flow function corresponding to an edge in the supergraph.
*
* This function should be distributive for use with the Tabulation algorithm.
*/
public interface IUnaryFlowFunction extends IFlowFunction {
/**
* @param d1
* @return set of d2 such that (d1,d2) is an edge in this distributive function's graph representation, or null if there are none
*/
public IntSet getTargets(int d1);
}