75 lines
2.5 KiB
C++
75 lines
2.5 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_invoke_MethodHandleImpl.h"
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#include "nativehelper/jni_macros.h"
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#include "art_method.h"
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#include "handle_scope-inl.h"
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#include "jni/jni_internal.h"
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#include "mirror/field.h"
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#include "mirror/method.h"
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#include "mirror/method_handle_impl-inl.h"
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#include "native_util.h"
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#include "runtime.h"
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#include "scoped_thread_state_change-inl.h"
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namespace art {
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static jobject MethodHandleImpl_getMemberInternal(JNIEnv* env, jobject thiz) {
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ScopedObjectAccess soa(env);
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StackHandleScope<2> hs(soa.Self());
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Handle<mirror::MethodHandleImpl> handle = hs.NewHandle(
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soa.Decode<mirror::MethodHandleImpl>(thiz));
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// Check the handle kind, we need to materialize a Field for field accessors,
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// a Method for method invokers and a Constructor for constructors.
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const mirror::MethodHandle::Kind handle_kind = handle->GetHandleKind();
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MutableHandle<mirror::Object> h_object(hs.NewHandle<mirror::Object>(nullptr));
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if (handle_kind >= mirror::MethodHandle::kFirstAccessorKind) {
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ArtField* const field = handle->GetTargetField();
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h_object.Assign(
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mirror::Field::CreateFromArtField(soa.Self(), field, /* force_resolve= */ false));
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} else {
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ArtMethod* const method = handle->GetTargetMethod();
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if (method->IsConstructor()) {
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h_object.Assign(
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mirror::Constructor::CreateFromArtMethod<kRuntimePointerSize>(soa.Self(), method));
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} else {
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h_object.Assign(mirror::Method::CreateFromArtMethod<kRuntimePointerSize>(soa.Self(), method));
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}
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}
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if (UNLIKELY(h_object == nullptr)) {
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soa.Self()->AssertPendingOOMException();
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return nullptr;
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}
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return soa.AddLocalReference<jobject>(h_object.Get());
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}
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static JNINativeMethod gMethods[] = {
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NATIVE_METHOD(MethodHandleImpl, getMemberInternal, "()Ljava/lang/reflect/Member;"),
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};
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void register_java_lang_invoke_MethodHandleImpl(JNIEnv* env) {
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REGISTER_NATIVE_METHODS("java/lang/invoke/MethodHandleImpl");
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}
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} // namespace art
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