proguard.evaluation.BranchUnit 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.evaluation;
import proguard.classfile.Clazz;
import proguard.classfile.attribute.CodeAttribute;
/**
* This InstructionVisitor evaluates the instructions that it visits.
*
* @author Eric Lafortune
*/
public interface BranchUnit
{
/**
* Sets the new instruction offset.
*/
public void branch(Clazz clazz,
CodeAttribute codeAttribute,
int offset,
int branchTarget);
/**
* Sets the new instruction offset, depending on the certainty of the
* conditional branch.
*/
public void branchConditionally(Clazz clazz,
CodeAttribute codeAttribute,
int offset,
int branchTarget,
int conditional);
/**
* Returns from the method with the given value.
*/
public void returnFromMethod();
/**
* Handles the throwing of an exception.
*/
public void throwException();
}
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