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      1 /*
      2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
      3  *             of Java bytecode.
      4  *
      5  * Copyright (c) 2002-2014 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 import proguard.classfile.*;
     24 import proguard.classfile.constant.visitor.ConstantVisitor;
     25 
     26 /**
     27  * Representation of a bootstrap method.
     28  *
     29  * @author Eric Lafortune
     30  */
     31 public class BootstrapMethodInfo implements VisitorAccepter
     32 {
     33     public int   u2methodHandleIndex;
     34     public int   u2methodArgumentCount;
     35     public int[] u2methodArguments;
     36 
     37     /**
     38      * An extra field in which visitors can store information.
     39      */
     40     public Object visitorInfo;
     41 
     42 
     43     /**
     44      * Creates an uninitialized BootstrapMethodInfo.
     45      */
     46     public BootstrapMethodInfo()
     47     {
     48     }
     49 
     50 
     51     /**
     52      * Creates an initialized BootstrapMethodInfo.
     53      */
     54     public BootstrapMethodInfo(int   u2methodHandleIndex,
     55                                int   u2methodArgumentCount,
     56                                int[] u2methodArguments)
     57     {
     58         this.u2methodHandleIndex   = u2methodHandleIndex;
     59         this.u2methodArgumentCount = u2methodArgumentCount;
     60         this.u2methodArguments     = u2methodArguments;
     61     }
     62 
     63 
     64     /**
     65      * Applies the given constant pool visitor to the argument constants of the
     66      * bootstrap method.
     67      */
     68     public void methodArgumentsAccept(Clazz clazz, ConstantVisitor constantVisitor)
     69     {
     70         for (int index = 0; index < u2methodArgumentCount; index++)
     71         {
     72             clazz.constantPoolEntryAccept(u2methodArguments[index],
     73                                           constantVisitor);
     74         }
     75     }
     76 
     77 
     78     // Implementations for VisitorAccepter.
     79 
     80     public Object getVisitorInfo()
     81     {
     82         return visitorInfo;
     83     }
     84 
     85     public void setVisitorInfo(Object visitorInfo)
     86     {
     87         this.visitorInfo = visitorInfo;
     88     }
     89 }
     90