private boolean isPotentialTypeMatch(ArrayList<String> deobfTypes, ArrayList<String> obfTypes) {
if (deobfTypes.size() != obfTypes.size()) {
return false;
}
for (int i = 0; i < deobfTypes.size(); i++) {
String deobfType = deobfTypes.get(i);
String obfType = obfTypes.get(i);
String deobfClass = deobfType.replaceFirst("^\\[+", "");
String obfClass = obfType.replaceFirst("^\\[+", "");
if (deobfType.length() - deobfClass.length() != obfType.length() - obfClass.length()) {
return false;
}
if (deobfClass.charAt(0) == 'L' && obfClass.charAt(0) == 'L') {
deobfClass = ClassMap.descriptorToClassName(deobfClass);
obfClass = ClassMap.descriptorToClassName(obfClass);
boolean deobfIsMC = !deobfClass.contains(".") || deobfClass.startsWith("net.minecraft.");
boolean obfIsMC = !obfClass.matches(".*[^a-z].*") || obfClass.startsWith("net.minecraft.");
if (deobfIsMC != obfIsMC) {
return false;
} else if (deobfIsMC) {
if (classMod.getClassMap().hasMap(deobfClass)) {
String deobfMapping = classMod.getClassMap().map(deobfClass).replace('/', '.');
if (!deobfMapping.equals(obfClass)) {
return false;
}
}
} else if (!deobfClass.equals(obfClass)) {
return false;
}
} else if (!deobfClass.equals(obfClass)) {
return false;
}
}
return true;
}
public boolean match(String filename, ClassFile classFile, ClassMap tempClassMap) {
for (Object o : classFile.getMethods()) {
MethodInfo methodInfo = (MethodInfo) o;
classMod.methodInfo = methodInfo;
CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
if (codeAttribute == null) {
continue;
}
if (getClassMap().hasMap(deobfMethod)) {
MethodRef obfTarget = (MethodRef) getClassMap().map(deobfMethod);
if (!methodInfo.getName().equals(obfTarget.getName())) {
continue;
}
}
ArrayList<String> deobfTypes = null;
ArrayList<String> obfTypes = null;
if (deobfMethod != null && deobfMethod.getType() != null) {
deobfTypes = ConstPoolUtils.parseDescriptor(deobfMethod.getType());
obfTypes = ConstPoolUtils.parseDescriptor(methodInfo.getDescriptor());
if (!isPotentialTypeMatch(deobfTypes, obfTypes)) {
continue;
}
}
ConstPool constPool = methodInfo.getConstPool();
CodeIterator codeIterator = codeAttribute.iterator();
initMatcher();
ArrayList<JavaRef> tempMappings = new ArrayList<JavaRef>();
try {
match:
for (int offset = 0;
offset < codeIterator.getCodeLength() && matcher.match(methodInfo, offset);
offset = codeIterator.next()) {
tempMappings.clear();
for (Map.Entry<Integer, JavaRef> entry : xrefs.entrySet()) {
int captureGroup = entry.getKey();
JavaRef xref = entry.getValue();
byte[] code = matcher.getCaptureGroup(captureGroup);
int index = Util.demarshal(code, 1, 2);
ConstPoolUtils.matchOpcodeToRefType(code[0], xref);
ConstPoolUtils.matchConstPoolTagToRefType(constPool.getTag(index), xref);
JavaRef newRef = ConstPoolUtils.getRefForIndex(constPool, index);
if (!isPotentialTypeMatch(xref.getType(), newRef.getType())) {
if (deobfMethod != null) {
Logger.log(
Logger.LOG_METHOD,
"method %s %s matches %s %s, but",
methodInfo.getName(),
methodInfo.getDescriptor(),
deobfMethod.getName(),
deobfMethod.getType());
}
Logger.log(
Logger.LOG_METHOD,
"method %s %s failed xref #%d %s %s -> %s %s",
methodInfo.getName(),
methodInfo.getDescriptor(),
captureGroup,
xref.getName(),
xref.getType(),
newRef.getName(),
newRef.getType());
continue match;
}
tempMappings.add(xref);
tempMappings.add(newRef);
}
for (int i = 0; i + 1 < tempMappings.size(); i += 2) {
tempClassMap.addMap(tempMappings.get(i), tempMappings.get(i + 1));
}
if (deobfMethod != null) {
String deobfName = classMod.getDeobfClass();
tempClassMap.addClassMap(deobfName, ClassMap.filenameToClassName(filename));
tempClassMap.addMethodMap(
deobfName, deobfMethod.getName(), methodInfo.getName(), methodInfo.getDescriptor());
if (deobfTypes != null && obfTypes != null) {
for (int i = 0; i < deobfTypes.size(); i++) {
String desc = ClassMap.descriptorToClassName(deobfTypes.get(i));
String obf = ClassMap.descriptorToClassName(obfTypes.get(i));
if (!obf.equals(desc)) {
tempClassMap.addClassMap(desc, obf);
}
}
}
}
afterMatch(classFile, methodInfo);
classMod.methodInfo = null;
return true;
}
} catch (BadBytecode e) {
Logger.log(e);
}
}
classMod.methodInfo = null;
return false;
}