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ProGuard is a free Java class file shrinker, optimizer, and obfuscator. It removes unused classes, fields, methods, and attributes. It then optimizes the bytecode. It then renames the remaining classes, fields, and methods using short meaningless names. Finally, it preverifies the processed code for Java 6 or for Java Micro Edition.

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/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2009 Eric Lafortune ([email protected])
 *
 * 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.attribute.annotation;

import proguard.classfile.*;
import proguard.classfile.attribute.Attribute;
import proguard.classfile.attribute.annotation.visitor.AnnotationVisitor;

/**
 * This Attribute represents an annotations attribute.
 *
 * @author Eric Lafortune
 */
public abstract class AnnotationsAttribute extends Attribute
{
    public int          u2annotationsCount;
    public Annotation[] annotations;


    /**
     * Creates an uninitialized AnnotationsAttribute.
     */
    protected AnnotationsAttribute()
    {
    }


    /**
     * Creates an initialized AnnotationsAttribute. 
     */
    protected AnnotationsAttribute(int          u2attributeNameIndex,
                                   int          u2annotationsCount,
                                   Annotation[] annotations)
    {
        super(u2attributeNameIndex);

        this.u2annotationsCount = u2annotationsCount;
        this.annotations        = annotations;
    }


    /**
     * Applies the given visitor to all class annotations.
     */
    public void annotationsAccept(Clazz clazz, AnnotationVisitor annotationVisitor)
    {
        for (int index = 0; index < u2annotationsCount; index++)
        {
            // We don't need double dispatching here, since there is only one
            // type of Annotation.
            annotationVisitor.visitAnnotation(clazz, annotations[index]);
        }
    }


    /**
     * Applies the given visitor to all field annotations.
     */
    public void annotationsAccept(Clazz clazz, Field field, AnnotationVisitor annotationVisitor)
    {
        for (int index = 0; index < u2annotationsCount; index++)
        {
            // We don't need double dispatching here, since there is only one
            // type of Annotation.
            annotationVisitor.visitAnnotation(clazz, field, annotations[index]);
        }
    }


    /**
     * Applies the given visitor to all method annotations.
     */
    public void annotationsAccept(Clazz clazz, Method method, AnnotationVisitor annotationVisitor)
    {
        for (int index = 0; index < u2annotationsCount; index++)
        {
            // We don't need double dispatching here, since there is only one
            // type of Annotation.
            annotationVisitor.visitAnnotation(clazz, method, annotations[index]);
        }
    }
}