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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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