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      1 /*
      2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
      3  *             of Java bytecode.
      4  *
      5  * Copyright (c) 2002-2009 Eric Lafortune (eric (at) 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  */
     21 package proguard.classfile.attribute;
     22 
     23 
     24 import proguard.classfile.*;
     25 import proguard.classfile.attribute.visitor.AttributeVisitor;
     26 
     27 /**
     28  * This Attribute represents an unknown attribute.
     29  *
     30  * @author Eric Lafortune
     31  */
     32 public class UnknownAttribute extends Attribute
     33 {
     34     public final int    u4attributeLength;
     35     public byte[] info;
     36 
     37 
     38     /**
     39      * Creates an uninitialized UnknownAttribute with the given length.
     40      */
     41     public UnknownAttribute(int attributeLength)
     42     {
     43         u4attributeLength = attributeLength;
     44     }
     45 
     46 
     47     /**
     48      * Creates an initialized UnknownAttribute.
     49      */
     50     public UnknownAttribute(int    u2attributeNameIndex,
     51                             int    u4attributeLength,
     52                             byte[] info)
     53     {
     54         super(u2attributeNameIndex);
     55 
     56         this.u4attributeLength = u4attributeLength;
     57         this.info              = info;
     58     }
     59 
     60 
     61     // Implementations for Attribute.
     62 
     63     public void accept(Clazz clazz, AttributeVisitor attributeVisitor)
     64     {
     65         attributeVisitor.visitUnknownAttribute(clazz, this);
     66     }
     67 
     68     public void accept(Clazz clazz, Field field, AttributeVisitor attributeVisitor)
     69     {
     70         attributeVisitor.visitUnknownAttribute(clazz, this);
     71     }
     72 
     73     public void accept(Clazz clazz, Method method, AttributeVisitor attributeVisitor)
     74     {
     75         attributeVisitor.visitUnknownAttribute(clazz, this);
     76     }
     77 
     78     public void accept(Clazz clazz, Method method, CodeAttribute codeAttribute, AttributeVisitor attributeVisitor)
     79     {
     80         attributeVisitor.visitUnknownAttribute(clazz, this);
     81     }
     82 }
     83