100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "java_lang_reflect_Method.h"
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#include "nativehelper/jni_macros.h"
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#include "art_method-inl.h"
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#include "base/enums.h"
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#include "class_linker-inl.h"
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#include "class_linker.h"
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#include "class_root-inl.h"
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#include "dex/dex_file_annotations.h"
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#include "jni/jni_internal.h"
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#include "mirror/class-inl.h"
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#include "mirror/object-inl.h"
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#include "mirror/object_array-alloc-inl.h"
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#include "native_util.h"
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#include "reflection.h"
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#include "scoped_fast_native_object_access-inl.h"
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#include "well_known_classes.h"
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namespace art {
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static jobject Method_getDefaultValue(JNIEnv* env, jobject javaMethod) {
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ScopedFastNativeObjectAccess soa(env);
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ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
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if (!method->GetDeclaringClass()->IsAnnotation()) {
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return nullptr;
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}
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return soa.AddLocalReference<jobject>(annotations::GetAnnotationDefaultValue(method));
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}
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static jobjectArray Method_getExceptionTypes(JNIEnv* env, jobject javaMethod) {
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ScopedFastNativeObjectAccess soa(env);
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ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod);
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if (method->GetDeclaringClass()->IsProxyClass()) {
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ObjPtr<mirror::Class> klass = method->GetDeclaringClass();
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int throws_index = -1;
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size_t i = 0;
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for (const auto& m : klass->GetDeclaredVirtualMethods(kRuntimePointerSize)) {
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if (&m == method) {
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throws_index = i;
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break;
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}
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++i;
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}
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CHECK_NE(throws_index, -1);
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StackHandleScope<1u> hs(soa.Self());
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Handle<mirror::ObjectArray<mirror::Class>> declared_exceptions =
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hs.NewHandle(klass->GetProxyThrows()->Get(throws_index));
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return soa.AddLocalReference<jobjectArray>(
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mirror::ObjectArray<mirror::Class>::Clone(declared_exceptions, soa.Self()));
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} else {
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ObjPtr<mirror::ObjectArray<mirror::Class>> result_array =
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annotations::GetExceptionTypesForMethod(method);
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if (result_array == nullptr) {
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// Return an empty array instead of a null pointer
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ObjPtr<mirror::Class> class_array_class = GetClassRoot<mirror::ObjectArray<mirror::Class>>();
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DCHECK(class_array_class != nullptr);
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ObjPtr<mirror::ObjectArray<mirror::Class>> empty_array =
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mirror::ObjectArray<mirror::Class>::Alloc(soa.Self(), class_array_class, 0);
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return soa.AddLocalReference<jobjectArray>(empty_array);
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} else {
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return soa.AddLocalReference<jobjectArray>(result_array);
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}
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}
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}
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static jobject Method_invoke(JNIEnv* env, jobject javaMethod, jobject javaReceiver,
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jobjectArray javaArgs) {
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ScopedFastNativeObjectAccess soa(env);
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return InvokeMethod<kRuntimePointerSize>(soa, javaMethod, javaReceiver, javaArgs);
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}
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static JNINativeMethod gMethods[] = {
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FAST_NATIVE_METHOD(Method, getDefaultValue, "()Ljava/lang/Object;"),
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FAST_NATIVE_METHOD(Method, getExceptionTypes, "()[Ljava/lang/Class;"),
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FAST_NATIVE_METHOD(Method, invoke, "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;"),
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};
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void register_java_lang_reflect_Method(JNIEnv* env) {
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REGISTER_NATIVE_METHODS("java/lang/reflect/Method");
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}
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} // namespace art
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