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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.annotation;
     22 
     23 import proguard.classfile.*;
     24 import proguard.classfile.attribute.Attribute;
     25 import proguard.classfile.attribute.annotation.visitor.AnnotationVisitor;
     26 
     27 /**
     28  * This Attribute represents an annotations attribute.
     29  *
     30  * @author Eric Lafortune
     31  */
     32 public abstract class AnnotationsAttribute extends Attribute
     33 {
     34     public int          u2annotationsCount;
     35     public Annotation[] annotations;
     36 
     37 
     38     /**
     39      * Creates an uninitialized AnnotationsAttribute.
     40      */
     41     protected AnnotationsAttribute()
     42     {
     43     }
     44 
     45 
     46     /**
     47      * Creates an initialized AnnotationsAttribute.
     48      */
     49     protected AnnotationsAttribute(int          u2attributeNameIndex,
     50                                    int          u2annotationsCount,
     51                                    Annotation[] annotations)
     52     {
     53         super(u2attributeNameIndex);
     54 
     55         this.u2annotationsCount = u2annotationsCount;
     56         this.annotations        = annotations;
     57     }
     58 
     59 
     60     /**
     61      * Applies the given visitor to all class annotations.
     62      */
     63     public void annotationsAccept(Clazz clazz, AnnotationVisitor annotationVisitor)
     64     {
     65         for (int index = 0; index < u2annotationsCount; index++)
     66         {
     67             // We don't need double dispatching here, since there is only one
     68             // type of Annotation.
     69             annotationVisitor.visitAnnotation(clazz, annotations[index]);
     70         }
     71     }
     72 
     73 
     74     /**
     75      * Applies the given visitor to all field annotations.
     76      */
     77     public void annotationsAccept(Clazz clazz, Field field, AnnotationVisitor annotationVisitor)
     78     {
     79         for (int index = 0; index < u2annotationsCount; index++)
     80         {
     81             // We don't need double dispatching here, since there is only one
     82             // type of Annotation.
     83             annotationVisitor.visitAnnotation(clazz, field, annotations[index]);
     84         }
     85     }
     86 
     87 
     88     /**
     89      * Applies the given visitor to all method annotations.
     90      */
     91     public void annotationsAccept(Clazz clazz, Method method, AnnotationVisitor annotationVisitor)
     92     {
     93         for (int index = 0; index < u2annotationsCount; index++)
     94         {
     95             // We don't need double dispatching here, since there is only one
     96             // type of Annotation.
     97             annotationVisitor.visitAnnotation(clazz, method, annotations[index]);
     98         }
     99     }
    100 }
    101