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/*
* 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 "nativehelper/jni_macros.h"
#include "art_method-inl.h"
#include "base/enums.h"
#include "class_linker-inl.h"
#include "class_linker.h"
#include "class_root-inl.h"
#include "dex/dex_file_annotations.h"
#include "jni/jni_internal.h"
#include "mirror/class-inl.h"
#include "mirror/object-inl.h"
#include "mirror/object_array-alloc-inl.h"
#include "native_util.h"
#include "reflection.h"
#include "scoped_fast_native_object_access-inl.h"
namespace art {
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>(annotations::GetAnnotationDefaultValue(method));
}
static jobjectArray Method_getExceptionTypes(JNIEnv* env, jobject javaMethod) {
ScopedFastNativeObjectAccess soa(env);
ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
if (method->GetDeclaringClass()->IsProxyClass()) {
ObjPtr<mirror::Class> klass = method->GetDeclaringClass();
int throws_index = -1;
size_t i = 0;
for (const auto& m : klass->GetDeclaredVirtualMethods(kRuntimePointerSize)) {
if (&m == method) {
throws_index = i;
break;
}
++i;
}
CHECK_NE(throws_index, -1);
StackHandleScope<1u> hs(soa.Self());
Handle<mirror::ObjectArray<mirror::Class>> declared_exceptions =
hs.NewHandle(klass->GetProxyThrows()->Get(throws_index));
return soa.AddLocalReference<jobjectArray>(
mirror::ObjectArray<mirror::Class>::Clone(declared_exceptions, soa.Self()));
} else {
ObjPtr<mirror::ObjectArray<mirror::Class>> result_array =
annotations::GetExceptionTypesForMethod(method);
if (result_array == nullptr) {
// Return an empty array instead of a null pointer
ObjPtr<mirror::Class> class_array_class = GetClassRoot<mirror::ObjectArray<mirror::Class>>();
DCHECK(class_array_class != nullptr);
ObjPtr<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);
}
}
}
NO_STACK_PROTECTOR
static jobject Method_invoke(JNIEnv* env, jobject javaMethod, jobject javaReceiver,
jobjectArray javaArgs) {
ScopedFastNativeObjectAccess soa(env);
return InvokeMethod<kRuntimePointerSize>(soa, javaMethod, javaReceiver, javaArgs);
}
static JNINativeMethod gMethods[] = {
FAST_NATIVE_METHOD(Method, getDefaultValue, "()Ljava/lang/Object;"),
FAST_NATIVE_METHOD(Method, getExceptionTypes, "()[Ljava/lang/Class;"),
FAST_NATIVE_METHOD(Method, invoke, "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;"),
};
void register_java_lang_reflect_Method(JNIEnv* env) {
REGISTER_NATIVE_METHODS("java/lang/reflect/Method");
}
} // namespace art
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