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 28namespace art { 29 30static 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 44static 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 56static 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 68static 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 74void register_java_lang_reflect_AbstractMethod(JNIEnv* env) { 75 REGISTER_NATIVE_METHODS("java/lang/reflect/AbstractMethod"); 76} 77 78} // namespace art 79