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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu)
*
* 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.preverification;
import proguard.classfile.*;
import proguard.classfile.attribute.*;
import proguard.classfile.attribute.preverification.visitor.StackMapFrameVisitor;
import proguard.classfile.attribute.visitor.AttributeVisitor;
/**
* This Attribute represents an exceptions attribute.
*
* @author Eric Lafortune
*/
public class StackMapAttribute extends Attribute
{
public int u2stackMapFramesCount;
public FullFrame[] stackMapFrames;
/**
* Creates an uninitialized ExceptionsAttribute.
*/
public StackMapAttribute()
{
}
/**
* Creates a StackMapTableAttribute with the given stack map frames.
*/
public StackMapAttribute(FullFrame[] stackMapFrames)
{
this(stackMapFrames.length, stackMapFrames);
}
/**
* Creates a StackMapTableAttribute with the given stack map frames.
*/
public StackMapAttribute(int stackMapFramesCount,
FullFrame[] stackMapFrames)
{
this.u2stackMapFramesCount = stackMapFramesCount;
this.stackMapFrames = stackMapFrames;
}
// Implementations for Attribute.
public void accept(Clazz clazz, Method method, CodeAttribute codeAttribute, AttributeVisitor attributeVisitor)
{
attributeVisitor.visitStackMapAttribute(clazz, method, codeAttribute, this);
}
/**
* Applies the given stack map frame visitor to all stack map frames.
*/
public void stackMapFramesAccept(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapFrameVisitor stackMapFrameVisitor)
{
for (int index = 0; index < u2stackMapFramesCount; index++)
{
FullFrame stackMapFrame = stackMapFrames[index];
// We don't need double dispatching here, since there is only one
// type of StackMapFrame.
stackMapFrameVisitor.visitFullFrame(clazz, method, codeAttribute, stackMapFrame.getOffsetDelta(), stackMapFrame);
}
}
}
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