proguard.classfile.visitor.ExceptionHandlerConstantVisitor Maven / Gradle / Ivy
/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2018 GuardSquare NV
*
* 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.visitor;
import proguard.classfile.*;
import proguard.classfile.attribute.*;
import proguard.classfile.attribute.visitor.ExceptionInfoVisitor;
import proguard.classfile.constant.visitor.ConstantVisitor;
/**
* This ExceptionInfoVisitor
lets a given
* ConstantVisitor
visit all catch class constants of exceptions
* that it visits.
*
* @author Eric Lafortune
*/
public class ExceptionHandlerConstantVisitor
implements ExceptionInfoVisitor
{
private final ConstantVisitor constantVisitor;
/**
* Creates a new ExceptionHandlerConstantVisitor.
* @param constantVisitor the ConstantVisitor that will visit the catch
* class constants.
*/
public ExceptionHandlerConstantVisitor(ConstantVisitor constantVisitor)
{
this.constantVisitor = constantVisitor;
}
// Implementations for ExceptionInfoVisitor.
public void visitExceptionInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, ExceptionInfo exceptionInfo)
{
int catchType = exceptionInfo.u2catchType;
if (catchType != 0)
{
clazz.constantPoolEntryAccept(catchType, constantVisitor);
}
}
}
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