1/* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21package proguard.classfile.constant; 22 23import proguard.classfile.*; 24import proguard.classfile.constant.visitor.ConstantVisitor; 25 26/** 27 * This abstract class represents an entry in the ConstantPool. Specific types 28 * of entries are subclassed from it. 29 * 30 * @author Eric Lafortune 31 */ 32public abstract class Constant implements VisitorAccepter 33{ 34 //public int u1tag; 35 //public byte info[]; 36 37 /** 38 * An extra field in which visitors can store information. 39 */ 40 public Object visitorInfo; 41 42 43 // Abstract methods to be implemented by extensions. 44 45 /** 46 * Returns the constant pool info tag that specifies the entry type. 47 */ 48 public abstract int getTag(); 49 50 51 /** 52 * Accepts the given visitor. 53 */ 54 public abstract void accept(Clazz clazz, ConstantVisitor constantVisitor); 55 56 57 // Implementations for VisitorAccepter. 58 59 public Object getVisitorInfo() 60 { 61 return visitorInfo; 62 } 63 64 public void setVisitorInfo(Object visitorInfo) 65 { 66 this.visitorInfo = visitorInfo; 67 } 68} 69