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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.

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/*
 * Javassist, a Java-bytecode translator toolkit.
 * Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License.  Alternatively, the contents of this file may be used under
 * the terms of the GNU Lesser General Public License Version 2.1 or later,
 * or the Apache License Version 2.0.
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 */

package com.feilong.lib.javassist.compiler.ast;

import com.feilong.lib.javassist.compiler.CompileError;

/**
 * A node of a a binary tree. This class provides concrete methods
 * overriding abstract methods in ASTree.
 */
public class Pair extends ASTree{

    /** default serialVersionUID */
    private static final long serialVersionUID = 1L;

    protected ASTree          left, right;

    public Pair(ASTree _left, ASTree _right){
        left = _left;
        right = _right;
    }

    @Override
    public void accept(Visitor v) throws CompileError{
        v.atPair(this);
    }

    @Override
    public String toString(){
        StringBuffer sbuf = new StringBuffer();
        sbuf.append("( ");
        sbuf.append(left == null ? "" : left.toString());
        sbuf.append(" . ");
        sbuf.append(right == null ? "" : right.toString());
        sbuf.append(')');
        return sbuf.toString();
    }

    @Override
    public ASTree getLeft(){
        return left;
    }

    @Override
    public ASTree getRight(){
        return right;
    }

    @Override
    public void setLeft(ASTree _left){
        left = _left;
    }

    @Override
    public void setRight(ASTree _right){
        right = _right;
    }
}