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/*******************************************************************************
* Copyright (c) 2014 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.analysis;
import javassist.CtClass;
import javassist.CtMethod;
import javassist.bytecode.ConstPool;
import javassist.bytecode.Descriptor;
import cuchaz.enigma.bytecode.ConstPoolEditor;
import cuchaz.enigma.mapping.BehaviorEntry;
import cuchaz.enigma.mapping.BehaviorEntryFactory;
import cuchaz.enigma.mapping.ClassEntry;
import cuchaz.enigma.mapping.MethodEntry;
public class BridgeFixer
{
private JarIndex m_index;
public BridgeFixer( JarIndex index )
{
m_index = index;
}
public void fixBridges( CtClass c )
{
// rename declared methods
for( CtMethod method : c.getDeclaredMethods() )
{
// get the method entry
MethodEntry methodEntry = new MethodEntry(
new ClassEntry( Descriptor.toJvmName( c.getName() ) ),
method.getName(),
method.getSignature()
);
MethodEntry bridgeMethodEntry = m_index.getBridgeMethod( methodEntry );
if( bridgeMethodEntry != null )
{
// fix this bridged method
method.setName( bridgeMethodEntry.getName() );
}
}
// rename method references
// translate all the field and method references in the code by editing the constant pool
ConstPool constants = c.getClassFile().getConstPool();
ConstPoolEditor editor = new ConstPoolEditor( constants );
for( int i=1; i<constants.getSize(); i++ )
{
switch( constants.getTag( i ) )
{
case ConstPool.CONST_Methodref:
case ConstPool.CONST_InterfaceMethodref:
{
BehaviorEntry behaviorEntry = BehaviorEntryFactory.create(
Descriptor.toJvmName( editor.getMemberrefClassname( i ) ),
editor.getMemberrefName( i ),
editor.getMemberrefType( i )
);
if( behaviorEntry instanceof MethodEntry )
{
MethodEntry methodEntry = (MethodEntry)behaviorEntry;
// translate the name and type
MethodEntry bridgeMethodEntry = m_index.getBridgeMethod( methodEntry );
if( bridgeMethodEntry != null )
{
// FIXIT FIXIT FIXIT FIXIT FIXIT FIXIT FIXIT
editor.changeMemberrefNameAndType( i, bridgeMethodEntry.getName(), bridgeMethodEntry.getSignature() );
}
}
}
break;
}
}
}
}
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