Examples with AttributeInfo javassist.bytecode.AttributeInfo used on opensource projects

Example 1 with AttributeInfo

use of javassist.bytecode.AttributeInfo in project pinpoint by naver.

the class JavaAssistUtils method lookupLocalVariableAttribute.

/**
     * get LocalVariableAttribute
     *
     * @param method
     * @return null if the class is not compiled with debug option
     */
public static LocalVariableAttribute lookupLocalVariableAttribute(CtBehavior method) {
    if (method == null) {
        throw new NullPointerException("method must not be null");
    }
    MethodInfo methodInfo = method.getMethodInfo2();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    if (codeAttribute == null) {
        return null;
    }
    AttributeInfo localVariableTable = codeAttribute.getAttribute(LocalVariableAttribute.tag);
    LocalVariableAttribute local = (LocalVariableAttribute) localVariableTable;
    return local;
}

Example 2 with AttributeInfo

use of javassist.bytecode.AttributeInfo in project fakereplace by fakereplace.

the class FieldReplacementTransformer method copyFieldAttributes.

private static void copyFieldAttributes(FieldInfo oldField, FieldInfo newField) {
    AnnotationsAttribute annotations = (AnnotationsAttribute) oldField.getAttribute(AnnotationsAttribute.visibleTag);
    SignatureAttribute sigAt = (SignatureAttribute) oldField.getAttribute(SignatureAttribute.tag);
    if (annotations != null) {
        AttributeInfo newAnnotations = annotations.copy(newField.getConstPool(), Collections.EMPTY_MAP);
        newField.addAttribute(newAnnotations);
    }
    if (sigAt != null) {
        AttributeInfo newAnnotations = sigAt.copy(newField.getConstPool(), Collections.EMPTY_MAP);
        newField.addAttribute(newAnnotations);
    }
}

Example 3 with AttributeInfo

use of javassist.bytecode.AttributeInfo in project fakereplace by fakereplace.

the class MethodReplacementTransformer method copyMethodAttributes.

public static void copyMethodAttributes(MethodInfo oldMethod, MethodInfo newMethod) {
    AnnotationsAttribute annotations = (AnnotationsAttribute) oldMethod.getAttribute(AnnotationsAttribute.visibleTag);
    ParameterAnnotationsAttribute pannotations = (ParameterAnnotationsAttribute) oldMethod.getAttribute(ParameterAnnotationsAttribute.visibleTag);
    ExceptionsAttribute exAt = (ExceptionsAttribute) oldMethod.getAttribute(ExceptionsAttribute.tag);
    SignatureAttribute sigAt = (SignatureAttribute) oldMethod.getAttribute(SignatureAttribute.tag);
    if (annotations != null) {
        AttributeInfo newAnnotations = annotations.copy(newMethod.getConstPool(), Collections.EMPTY_MAP);
        newMethod.addAttribute(newAnnotations);
    }
    if (pannotations != null) {
        AttributeInfo newAnnotations = pannotations.copy(newMethod.getConstPool(), Collections.EMPTY_MAP);
        newMethod.addAttribute(newAnnotations);
    }
    if (sigAt != null) {
        AttributeInfo newAnnotations = sigAt.copy(newMethod.getConstPool(), Collections.EMPTY_MAP);
        newMethod.addAttribute(newAnnotations);
    }
    if (exAt != null) {
        AttributeInfo newAnnotations = exAt.copy(newMethod.getConstPool(), Collections.EMPTY_MAP);
        newMethod.addAttribute(newAnnotations);
    }
}

Example 4 with AttributeInfo

use of javassist.bytecode.AttributeInfo in project fakereplace by fakereplace.

the class FinalMethodManipulator method transformClass.

public boolean transformClass(ClassFile file, ClassLoader loader, boolean modifiableClass, final Set<MethodInfo> modifiedMethods) {
    if (!modifiableClass) {
        return false;
    }
    boolean modified = false;
    for (Object i : file.getMethods()) {
        MethodInfo m = (MethodInfo) i;
        if ((m.getAccessFlags() & AccessFlag.FINAL) != 0) {
            m.setAccessFlags(m.getAccessFlags() & ~AccessFlag.FINAL);
            // ClassDataStore.addFinalMethod(file.getName(), m.getName(),
            // m.getDescriptor());
            AnnotationsAttribute at = (AnnotationsAttribute) m.getAttribute(AnnotationsAttribute.visibleTag);
            if (at == null) {
                at = new AnnotationsAttribute(file.getConstPool(), AnnotationsAttribute.visibleTag);
                m.addAttribute(at);
            }
            at.addAnnotation(new Annotation(ModifiedMethod.class.getName(), file.getConstPool()));
            m.addAttribute(new AttributeInfo(file.getConstPool(), Constants.FINAL_METHOD_ATTRIBUTE, new byte[0]));
            modified = true;
        }
    }
    return modified;
}

Example 5 with AttributeInfo

use of javassist.bytecode.AttributeInfo in project powermock by powermock.

the class ClassFinalModifierMockTransformer method transform.

@Override
public CtClass transform(final CtClass clazz) {
    if (clazz.isInterface()) {
        return clazz;
    }
    if (getStrategy() != INST_REDEFINE) {
        if (Modifier.isFinal(clazz.getModifiers())) {
            clazz.setModifiers(clazz.getModifiers() ^ Modifier.FINAL);
        }
        ClassFile classFile = clazz.getClassFile2();
        AttributeInfo attribute = classFile.getAttribute(InnerClassesAttribute.tag);
        if (attribute != null && attribute instanceof InnerClassesAttribute) {
            InnerClassesAttribute ica = (InnerClassesAttribute) attribute;
            String name = classFile.getName();
            int n = ica.tableLength();
            for (int i = 0; i < n; ++i) {
                if (name.equals(ica.innerClass(i))) {
                    int accessFlags = ica.accessFlags(i);
                    if (Modifier.isFinal(accessFlags)) {
                        ica.setAccessFlags(i, accessFlags ^ Modifier.FINAL);
                    }
                }
            }
        }
    }
    return clazz;
}