List of usage examples for org.aspectj.apache.bcel.generic Type getSignature
public String getSignature()
From source file:org.caesarj.mixer.intern.ClassModifyingVisitor.java
License:Open Source License
/** * Checks method references to super-constructors and outerclass methods * and modifies them to refer to the correct new outer classes. *///w w w.j av a 2 s . c o m protected void modifyMethodAndFieldRefs(JavaClass clazz) { ConstantPool cp = clazz.getConstantPool(); for (int i = 1; i < cp.getLength(); i++) { Constant c = cp.getConstant(i); if (c == null) continue; if (c.getTag() == Constants.CONSTANT_Fieldref) { ConstantFieldref fieldRef = (ConstantFieldref) c; String targetClass = fieldRef.getClass(cp); if (Tools.sameClass(targetClass, oldOuterClassName)) { int classIndex = fieldRef.getClassIndex(); ConstantClass cc = (ConstantClass) cp.getConstant(classIndex); int nameIndex = cc.getNameIndex(); cp.setConstant(nameIndex, new ConstantUtf8(newOuterClassName)); } } else if (c.getTag() == Constants.CONSTANT_Methodref) { ConstantMethodref mr = (ConstantMethodref) c; String targetClassName = mr.getClass(cp); int nameAndTypeIndex = mr.getNameAndTypeIndex(); ConstantNameAndType nat = ((ConstantNameAndType) cp.getConstant(nameAndTypeIndex)); String methodName = nat.getName(cp); // check for innerclass construction if (Tools.isPrefix(oldClassName, targetClassName)) { String innerIdent = targetClassName.substring(oldClassName.length() + 1); String newInnerName = newClassName + "$" + innerIdent; try { Integer.parseInt(innerIdent); } catch (Exception e) { // not an anonymous inner class continue; } // Change target class to new inner class int targetClassIndex = mr.getClassIndex(); int targetNameIndex = ((ConstantClass) cp.getConstant(targetClassIndex)).getNameIndex(); cp.setConstant(targetNameIndex, new ConstantUtf8(newInnerName)); // Change argument class to new class Type[] args = Type.getArgumentTypes(nat.getSignature(cp)); for (int j = 0; j < args.length; j++) { Type arg = args[j]; String signature = arg.getSignature(); String argumentType = arg.toString(); if (Tools.sameClass(argumentType, oldClassName)) { args[j] = Type.getType("L" + newClassName + ";"); } } String signature = Type.getMethodSignature(Type.getReturnType(nat.getSignature(cp)), args); int signatureIndex = nat.getSignatureIndex(); cp.setConstant(signatureIndex, new ConstantUtf8(signature)); } // Check for superconstructor calls with otuer class parameter if (Tools.sameClass(targetClassName, newSuperclassName)) { if (methodName.equals("<init>")) { Type[] args = Type.getArgumentTypes(nat.getSignature(cp)); if (args.length == 1) { String argumentType = args[0].toString(); // if parameter is of old super-outer-class type, set new signature if (Tools.sameClass(argumentType, outerOfOldSuper)) { cp.setConstant(nat.getSignatureIndex(), new ConstantUtf8("(L" + outerOfNewSuper + ";)V")); } } } } // check whether its a call to our old outer class if (Tools.isPrefix(targetClassName, oldOuterClassName)) { // String newTargetClass = Tools.getNewOuterName( // oldClassName, // targetClassName, // outerClasses); int classIndex = mr.getClassIndex(); ConstantClass cc = (ConstantClass) cp.getConstant(classIndex); int nameIndex = cc.getNameIndex(); cp.setConstant(nameIndex, new ConstantUtf8(newOuterClassName)); } } } }