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; }
boolean match() { matcher = new BytecodeMatcher(getMatchExpression()); return matcher.match(getMethodInfo()); }