/*
  Copyright 2006 by Sean Luke
  Licensed under the Academic Free License version 3.0
  See the file "LICENSE" for more information
*/


package ec.app.lid.func;
import ec.*;
import ec.app.lid.*;
import ec.gp.*;
import ec.util.*;

/*
 * LidX.java
 *
 * Created: Thursday 23 November 2011
 * By: James McDermott
 */

/**
 * @author James McDermott
 */

public class LidX extends GPNode
    {
    public String toString() { return "X"; }

    public int expectedChildren() { return 0; }

    public void eval(final EvolutionState state,
        final int thread,
        final GPData input,
        final ADFStack stack,
        final GPIndividual individual,
        final Problem problem)
        {
        // No need to evaluate or look at children. Lid is only
        // about tree shape/size
        }
    }
