/*******************************************************************************
* 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.fixedpoint.impl;
import com.ibm.wala.fixpoint.AbstractOperator;
import com.ibm.wala.fixpoint.FixedPointConstants;
import com.ibm.wala.fixpoint.IVariable;
/**
* An operator of the form lhs = op
*/
@SuppressWarnings("rawtypes")
public abstract class NullaryOperator<T extends IVariable> extends AbstractOperator<T> implements FixedPointConstants {
@Override
public byte evaluate(T lhs, T[] rhs) throws UnsupportedOperationException {
throw new UnsupportedOperationException();
}
/**
* Evaluate this equation, setting a new value for the
* left-hand side.
*
* @return true if the lhs value changes. false otherwise.
*/
public abstract byte evaluate(T lhs);
}