Constant.java example

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/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2011 Eric Lafortune (eric@graphics.cornell.edu)
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program 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 General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.classfile.constant;

import proguard.classfile.*;
import proguard.classfile.constant.visitor.ConstantVisitor;

/**
 * This abstract class represents an entry in the ConstantPool. Specific types
 * of entries are subclassed from it.
 *
 * @author Eric Lafortune
 */
public abstract class Constant implements VisitorAccepter
{
    //public int  u1tag;
    //public byte info[];

    /**
     * An extra field in which visitors can store information.
     */
    public Object visitorInfo;


    // Abstract methods to be implemented by extensions.

    /**
     * Returns the constant pool info tag that specifies the entry type.
     */
    public abstract int getTag();


    /**
     * Accepts the given visitor.
     */
    public abstract void accept(Clazz clazz, ConstantVisitor constantVisitor);


    // Implementations for VisitorAccepter.

    public Object getVisitorInfo()
    {
        return visitorInfo;
    }

    public void setVisitorInfo(Object visitorInfo)
    {
        this.visitorInfo = visitorInfo;
    }
}