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ABinaryExp.java

package edu.ksu.cis.bandera.jjjc.node;

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Bandera, a Java(TM) analysis and transformation toolkit           *
 * Copyright (C) 1998-2001 SAnToS Laboratories (santos@cis.ksu.edu)  *

 * All rights reserved.                                              *
 *                                                                   *
 * This work was done as a project in the SAnToS Laboratory,         *
 * Department of Computing and Information Sciences, Kansas State    *
 * University, USA (http://www.cis.ksu.edu/santos).                  *
 * It is understood that any modification not identified as such is  *
 * not covered by the preceding statement.                           *
 *                                                                   *
 * This work is free software; you can redistribute it and/or        *
 * modify it under the terms of the GNU Library General Public       *
 * License as published by the Free Software Foundation; either      *
 * version 2 of the License, or (at your option) any later version.  *
 *                                                                   *
 * This work 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 *
 * Library General Public License for more details.                  *
 *                                                                   *
 * You should have received a copy of the GNU Library General Public *
 * License along with this toolkit; if not, write to the             *
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,      *
 * Boston, MA  02111-1307, USA.                                      *
 *                                                                   *
 * Java is a trademark of Sun Microsystems, Inc.                     *
 *                                                                   *
 * To submit a bug report, send a comment, or get the latest news on *
 * this project and other SAnToS projects, please visit the web-site *
 *                http://www.cis.ksu.edu/santos                      *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
import ca.mcgill.sable.util.*;
import edu.ksu.cis.bandera.jjjc.analysis.*;

public final class ABinaryExp extends PExp
{
    private PExp _first_;
    private PBinaryOperator _binaryOperator_;
    private PExp _second_;

    public ABinaryExp()
    {
    }
    public ABinaryExp(
        PExp _first_,
        PBinaryOperator _binaryOperator_,
        PExp _second_)
    {
        setFirst(_first_);

        setBinaryOperator(_binaryOperator_);

        setSecond(_second_);

    }
    public void apply(Switch sw)
    {
        ((Analysis) sw).caseABinaryExp(this);
    }
    public Object clone()
    {
        return new ABinaryExp(
            (PExp) cloneNode(_first_),
            (PBinaryOperator) cloneNode(_binaryOperator_),
            (PExp) cloneNode(_second_));
    }
    public PBinaryOperator getBinaryOperator()
    {
        return _binaryOperator_;
    }
    public PExp getFirst()
    {
        return _first_;
    }
    public PExp getSecond()
    {
        return _second_;
    }
    void removeChild(Node child)
    {
        if(_first_ == child)
        {
            _first_ = null;
            return;
        }

        if(_binaryOperator_ == child)
        {
            _binaryOperator_ = null;
            return;
        }

        if(_second_ == child)
        {
            _second_ = null;
            return;
        }

    }
    void replaceChild(Node oldChild, Node newChild)
    {
        if(_first_ == oldChild)
        {
            setFirst((PExp) newChild);
            return;
        }

        if(_binaryOperator_ == oldChild)
        {
            setBinaryOperator((PBinaryOperator) newChild);
            return;
        }

        if(_second_ == oldChild)
        {
            setSecond((PExp) newChild);
            return;
        }

    }
    public void setBinaryOperator(PBinaryOperator node)
    {
        if(_binaryOperator_ != null)
        {
            _binaryOperator_.parent(null);
        }

        if(node != null)
        {
            if(node.parent() != null)
            {
                node.parent().removeChild(node);
            }

            node.parent(this);
        }

        _binaryOperator_ = node;
    }
    public void setFirst(PExp node)
    {
        if(_first_ != null)
        {
            _first_.parent(null);
        }

        if(node != null)
        {
            if(node.parent() != null)
            {
                node.parent().removeChild(node);
            }

            node.parent(this);
        }

        _first_ = node;
    }
    public void setSecond(PExp node)
    {
        if(_second_ != null)
        {
            _second_.parent(null);
        }

        if(node != null)
        {
            if(node.parent() != null)
            {
                node.parent().removeChild(node);
            }

            node.parent(this);
        }

        _second_ = node;
    }
    public String toString()
    {
        return ""
            + toString(_first_)
            + toString(_binaryOperator_)
            + toString(_second_);
    }
}

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