proguard.optimize.info.ProgramMemberOptimizationInfoSetter Maven / Gradle / Ivy
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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2019 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.optimize.info;
import proguard.classfile.*;
import proguard.classfile.util.*;
import proguard.classfile.visitor.MemberVisitor;
/**
* This MemberVisitor attaches a ProgramFieldOptimizationInfo instance to every
* field and a ProgramMethodOptimizationInfo instance to every method that is
* not being kept that it visits.
*
* @author Eric Lafortune
*/
public class ProgramMemberOptimizationInfoSetter
extends SimplifiedVisitor
implements MemberVisitor
{
private final boolean overwrite;
/**
* Creates a new ProgramMemberOptimizationInfoSetter that only attaches a
* ProgramFieldOptimizationInfo to a member if no other info is present
* on the member yet.
*/
public ProgramMemberOptimizationInfoSetter()
{
this(false);
}
/**
* Creates a new ProgramMemberOptimizationInfoSetter.
*
* @param overwrite boolean indicating whether an existing visitor info on
* a visited member should be overwritten or not.
*/
public ProgramMemberOptimizationInfoSetter(boolean overwrite)
{
this.overwrite = overwrite;
}
// Implementations for MemberVisitor.
public void visitProgramField(ProgramClass programClass, ProgramField programField)
{
if (programField.getVisitorInfo() == null || overwrite)
{
ProgramFieldOptimizationInfo.setProgramFieldOptimizationInfo(programClass,
programField);
}
}
public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)
{
if (MethodLinker.lastMember(programMethod).getVisitorInfo() == null || overwrite)
{
ProgramMethodOptimizationInfo.setProgramMethodOptimizationInfo(programClass,
programMethod);
}
}
}