74 lines
2.7 KiB
C++
74 lines
2.7 KiB
C++
/*
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* Copyright (C) 2016 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 "method_handle_impl-inl.h"
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#include "class-alloc-inl.h"
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#include "class_root-inl.h"
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namespace art {
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namespace mirror {
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const char* MethodHandle::GetReturnTypeDescriptor(const char* invoke_method_name) {
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if (strcmp(invoke_method_name, "invoke") == 0 || strcmp(invoke_method_name, "invokeExact") == 0) {
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return "Ljava/lang/Object;";
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} else {
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return nullptr;
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}
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}
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void MethodHandle::Initialize(uintptr_t art_field_or_method,
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Kind kind,
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Handle<MethodType> method_type)
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REQUIRES_SHARED(Locks::mutator_lock_) {
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CHECK(!Runtime::Current()->IsActiveTransaction());
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SetFieldObject<false>(CachedSpreadInvokerOffset(), nullptr);
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SetFieldObject<false>(MethodTypeOffset(), method_type.Get());
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SetFieldObject<false>(AsTypeCacheOffset(), nullptr);
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SetField32<false>(HandleKindOffset(), static_cast<uint32_t>(kind));
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SetField64<false>(ArtFieldOrMethodOffset(), art_field_or_method);
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}
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ObjPtr<mirror::MethodHandleImpl> MethodHandleImpl::Create(Thread* const self,
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uintptr_t art_field_or_method,
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MethodHandle::Kind kind,
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Handle<MethodType> method_type)
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REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_) {
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StackHandleScope<1> hs(self);
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Handle<mirror::MethodHandleImpl> mh(hs.NewHandle(ObjPtr<MethodHandleImpl>::DownCast(
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GetClassRoot<MethodHandleImpl>()->AllocObject(self))));
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mh->Initialize(art_field_or_method, kind, method_type);
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return mh.Get();
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}
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void MethodHandle::VisitTarget(ReflectiveValueVisitor* v) {
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void* target = GetTargetField();
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void* result;
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HeapReflectiveSourceInfo hrsi(kSourceJavaLangInvokeMethodHandle, this);
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if (GetHandleKind() < kFirstAccessorKind) {
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result = v->VisitMethod(GetTargetMethod(), hrsi);
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} else {
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result = v->VisitField(GetTargetField(), hrsi);
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}
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if (result != target) {
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SetField64<false>(ArtFieldOrMethodOffset(), reinterpret_cast<uintptr_t>(result));
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}
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}
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} // namespace mirror
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} // namespace art
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