blob: caacba6ec3db2505f3734cf43dbd77dd42c8f399 [file] [log] [blame]
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "java_lang_reflect_Method.h"
#include "art_method-inl.h"
#include "class_linker.h"
#include "class_linker-inl.h"
#include "jni_internal.h"
#include "mirror/class-inl.h"
#include "mirror/object-inl.h"
#include "mirror/object_array-inl.h"
#include "reflection.h"
#include "scoped_fast_native_object_access.h"
#include "well_known_classes.h"
namespace art {
static jobject Method_getAnnotationNative(JNIEnv* env, jobject javaMethod, jclass annotationType) {
ScopedFastNativeObjectAccess soa(env);
ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
if (method->GetDeclaringClass()->IsProxyClass()) {
return nullptr;
}
StackHandleScope<1> hs(soa.Self());
Handle<mirror::Class> klass(hs.NewHandle(soa.Decode<mirror::Class*>(annotationType)));
return soa.AddLocalReference<jobject>(
method->GetDexFile()->GetAnnotationForMethod(method, klass));
}
static jobjectArray Method_getDeclaredAnnotations(JNIEnv* env, jobject javaMethod) {
ScopedFastNativeObjectAccess soa(env);
ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
if (method->GetDeclaringClass()->IsProxyClass()) {
// Return an empty array instead of a null pointer.
mirror::Class* annotation_array_class =
soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_annotation_Annotation__array);
mirror::ObjectArray<mirror::Object>* empty_array =
mirror::ObjectArray<mirror::Object>::Alloc(soa.Self(), annotation_array_class, 0);
return soa.AddLocalReference<jobjectArray>(empty_array);
}
return soa.AddLocalReference<jobjectArray>(method->GetDexFile()->GetAnnotationsForMethod(method));
}
static jobject Method_getDefaultValue(JNIEnv* env, jobject javaMethod) {
ScopedFastNativeObjectAccess soa(env);
ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
if (!method->GetDeclaringClass()->IsAnnotation()) {
return nullptr;
}
return soa.AddLocalReference<jobject>(method->GetDexFile()->GetAnnotationDefaultValue(method));
}
static jobjectArray Method_getExceptionTypes(JNIEnv* env, jobject javaMethod) {
ScopedFastNativeObjectAccess soa(env);
ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
if (method->GetDeclaringClass()->IsProxyClass()) {
mirror::Class* klass = method->GetDeclaringClass();
int throws_index = -1;
size_t i = 0;
for (const auto& m : klass->GetVirtualMethods(sizeof(void*))) {
if (&m == method) {
throws_index = i;
break;
}
++i;
}
CHECK_NE(throws_index, -1);
mirror::ObjectArray<mirror::Class>* declared_exceptions = klass->GetThrows()->Get(throws_index);
return soa.AddLocalReference<jobjectArray>(declared_exceptions->Clone(soa.Self()));
} else {
mirror::ObjectArray<mirror::Class>* result_array =
method->GetDexFile()->GetExceptionTypesForMethod(method);
if (result_array == nullptr) {
// Return an empty array instead of a null pointer
mirror::Class* class_class = mirror::Class::GetJavaLangClass();
mirror::Class* class_array_class =
Runtime::Current()->GetClassLinker()->FindArrayClass(soa.Self(), &class_class);
if (class_array_class == nullptr) {
return nullptr;
}
mirror::ObjectArray<mirror::Class>* empty_array =
mirror::ObjectArray<mirror::Class>::Alloc(soa.Self(), class_array_class, 0);
return soa.AddLocalReference<jobjectArray>(empty_array);
} else {
return soa.AddLocalReference<jobjectArray>(result_array);
}
}
}
static jobjectArray Method_getParameterAnnotationsNative(JNIEnv* env, jobject javaMethod) {
ScopedFastNativeObjectAccess soa(env);
ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
if (method->GetDeclaringClass()->IsProxyClass()) {
return nullptr;
}
return soa.AddLocalReference<jobjectArray>(method->GetDexFile()->GetParameterAnnotations(method));
}
static jobject Method_invoke(JNIEnv* env, jobject javaMethod, jobject javaReceiver,
jobject javaArgs) {
ScopedFastNativeObjectAccess soa(env);
return InvokeMethod(soa, javaMethod, javaReceiver, javaArgs);
}
static jboolean Method_isAnnotationPresentNative(JNIEnv* env, jobject javaMethod,
jclass annotationType) {
ScopedFastNativeObjectAccess soa(env);
ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
if (method->GetDeclaringClass()->IsProxyClass()) {
return false;
}
StackHandleScope<1> hs(soa.Self());
Handle<mirror::Class> klass(hs.NewHandle(soa.Decode<mirror::Class*>(annotationType)));
return method->GetDexFile()->IsMethodAnnotationPresent(method, klass);
}
static JNINativeMethod gMethods[] = {
NATIVE_METHOD(Method, getAnnotationNative,
"!(Ljava/lang/Class;)Ljava/lang/annotation/Annotation;"),
NATIVE_METHOD(Method, getDeclaredAnnotations, "!()[Ljava/lang/annotation/Annotation;"),
NATIVE_METHOD(Method, getDefaultValue, "!()Ljava/lang/Object;"),
NATIVE_METHOD(Method, getExceptionTypes, "!()[Ljava/lang/Class;"),
NATIVE_METHOD(Method, getParameterAnnotationsNative, "!()[[Ljava/lang/annotation/Annotation;"),
NATIVE_METHOD(Method, invoke, "!(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;"),
NATIVE_METHOD(Method, isAnnotationPresentNative, "!(Ljava/lang/Class;)Z"),
};
void register_java_lang_reflect_Method(JNIEnv* env) {
REGISTER_NATIVE_METHODS("java/lang/reflect/Method");
}
} // namespace art