proguard.optimize.OptimizationInfoMemberFilter 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.optimize;
import proguard.classfile.*;
import proguard.classfile.visitor.MemberVisitor;
import proguard.optimize.info.*;
/**
* This MemberVisitor
delegates its visits to another given
* MemberVisitor
, but only when the visited member has editable
* optimization info.
*
* @see FieldOptimizationInfo
* @see ProgramFieldOptimizationInfo
* @see MethodOptimizationInfo
* @see ProgramMethodOptimizationInfo
* @author Eric Lafortune
*/
public class OptimizationInfoMemberFilter
implements MemberVisitor
{
private final MemberVisitor memberVisitor;
private final MemberVisitor otherMemberVisitor;
/**
* Creates a new OptimizationInfoMemberFilter.
* @param memberVisitor the MemberVisitor
to which visits will
* be delegated.
*/
public OptimizationInfoMemberFilter(MemberVisitor memberVisitor)
{
this(memberVisitor, null);
}
/**
* Creates a new OptimizationInfoMemberFilter.
* @param memberVisitor the MemberVisitor
to which visits will
* be delegated if the member has editable optimization
* info.
* @param otherMemberVisitor the MemberVisitor
to which visits will
* be delegated if the member does not have editable
* optimization info.
*/
public OptimizationInfoMemberFilter(MemberVisitor memberVisitor,
MemberVisitor otherMemberVisitor)
{
this.memberVisitor = memberVisitor;
this.otherMemberVisitor = otherMemberVisitor;
}
// Implementations for MemberVisitor.
public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) {}
public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) {}
public void visitProgramField(ProgramClass programClass, ProgramField programField)
{
MemberVisitor visitor =
FieldOptimizationInfo.getFieldOptimizationInfo(programField) instanceof ProgramFieldOptimizationInfo ?
memberVisitor : otherMemberVisitor;
if (visitor != null)
{
visitor.visitProgramField(programClass, programField);
}
}
public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)
{
MemberVisitor visitor =
MethodOptimizationInfo.getMethodOptimizationInfo(programMethod) instanceof ProgramMethodOptimizationInfo ?
memberVisitor : otherMemberVisitor;
if (visitor != null)
{
visitor.visitProgramMethod(programClass, programMethod);
}
}
}
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