1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "java_lang_reflect_AbstractMethod.h"
18
19 #include "art_method-inl.h"
20 #include "jni_internal.h"
21 #include "mirror/class-inl.h"
22 #include "mirror/object-inl.h"
23 #include "mirror/object_array-inl.h"
24 #include "reflection.h"
25 #include "scoped_fast_native_object_access.h"
26 #include "well_known_classes.h"
27
28 namespace art {
29
AbstractMethod_getDeclaredAnnotations(JNIEnv * env,jobject javaMethod)30 static jobjectArray AbstractMethod_getDeclaredAnnotations(JNIEnv* env, jobject javaMethod) {
31 ScopedFastNativeObjectAccess soa(env);
32 ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
33 if (method->GetDeclaringClass()->IsProxyClass()) {
34 // Return an empty array instead of a null pointer.
35 mirror::Class* annotation_array_class =
36 soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_annotation_Annotation__array);
37 mirror::ObjectArray<mirror::Object>* empty_array =
38 mirror::ObjectArray<mirror::Object>::Alloc(soa.Self(), annotation_array_class, 0);
39 return soa.AddLocalReference<jobjectArray>(empty_array);
40 }
41 return soa.AddLocalReference<jobjectArray>(method->GetDexFile()->GetAnnotationsForMethod(method));
42 }
43
AbstractMethod_getSignatureAnnotation(JNIEnv * env,jobject javaMethod)44 static jobjectArray AbstractMethod_getSignatureAnnotation(JNIEnv* env, jobject javaMethod) {
45 ScopedFastNativeObjectAccess soa(env);
46 ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
47 if (method->GetDeclaringClass()->IsProxyClass()) {
48 return nullptr;
49 }
50 StackHandleScope<1> hs(soa.Self());
51 return soa.AddLocalReference<jobjectArray>(
52 method->GetDexFile()->GetSignatureAnnotationForMethod(method));
53 }
54
55
AbstractMethod_isAnnotationPresentNative(JNIEnv * env,jobject javaMethod,jclass annotationType)56 static jboolean AbstractMethod_isAnnotationPresentNative(JNIEnv* env, jobject javaMethod,
57 jclass annotationType) {
58 ScopedFastNativeObjectAccess soa(env);
59 ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
60 if (method->GetDeclaringClass()->IsProxyClass()) {
61 return false;
62 }
63 StackHandleScope<1> hs(soa.Self());
64 Handle<mirror::Class> klass(hs.NewHandle(soa.Decode<mirror::Class*>(annotationType)));
65 return method->GetDexFile()->IsMethodAnnotationPresent(method, klass);
66 }
67
68 static JNINativeMethod gMethods[] = {
69 NATIVE_METHOD(AbstractMethod, getDeclaredAnnotations, "!()[Ljava/lang/annotation/Annotation;"),
70 NATIVE_METHOD(AbstractMethod, getSignatureAnnotation, "!()[Ljava/lang/String;"),
71 NATIVE_METHOD(AbstractMethod, isAnnotationPresentNative, "!(Ljava/lang/Class;)Z"),
72 };
73
register_java_lang_reflect_AbstractMethod(JNIEnv * env)74 void register_java_lang_reflect_AbstractMethod(JNIEnv* env) {
75 REGISTER_NATIVE_METHODS("java/lang/reflect/AbstractMethod");
76 }
77
78 } // namespace art
79