93 lines
3.3 KiB
C++
93 lines
3.3 KiB
C++
/*
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* Copyright (C) 2015 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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#ifndef ART_RUNTIME_MIRROR_FIELD_INL_H_
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#define ART_RUNTIME_MIRROR_FIELD_INL_H_
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#include "field.h"
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#include "art_field-inl.h"
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#include "mirror/dex_cache-inl.h"
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namespace art {
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namespace mirror {
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template <PointerSize kPointerSize, bool kTransactionActive>
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inline mirror::Field* Field::CreateFromArtField(Thread* self, ArtField* field, bool force_resolve) {
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StackHandleScope<2> hs(self);
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// Try to resolve type before allocating since this is a thread suspension point.
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Handle<mirror::Class> type = hs.NewHandle(field->GetType<true>());
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if (type == nullptr) {
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if (force_resolve) {
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if (kIsDebugBuild) {
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self->AssertPendingException();
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}
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return nullptr;
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} else {
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// Can't resolve, clear the exception if it isn't OOME and continue with a null type.
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mirror::Throwable* exception = self->GetException();
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if (exception->GetClass()->DescriptorEquals("Ljava/lang/OutOfMemoryError;")) {
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return nullptr;
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}
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self->ClearException();
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}
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}
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auto ret = hs.NewHandle(ObjPtr<Field>::DownCast(StaticClass()->AllocObject(self)));
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if (UNLIKELY(ret == nullptr)) {
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self->AssertPendingOOMException();
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return nullptr;
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}
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auto dex_field_index = field->GetDexFieldIndex();
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auto* resolved_field = field->GetDexCache()->GetResolvedField(dex_field_index, kPointerSize);
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if (field->GetDeclaringClass()->IsProxyClass()) {
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DCHECK(field->IsStatic());
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DCHECK_LT(dex_field_index, 2U);
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// The two static fields (interfaces, throws) of all proxy classes
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// share the same dex file indices 0 and 1. So, we can't resolve
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// them in the dex cache.
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} else {
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if (resolved_field != nullptr) {
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DCHECK_EQ(resolved_field, field);
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} else {
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// We rely on the field being resolved so that we can back to the ArtField
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// (i.e. FromReflectedMethod).
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field->GetDexCache()->SetResolvedField(dex_field_index, field, kPointerSize);
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}
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}
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ret->SetType<kTransactionActive>(type.Get());
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ret->SetDeclaringClass<kTransactionActive>(field->GetDeclaringClass());
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ret->SetAccessFlags<kTransactionActive>(field->GetAccessFlags());
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ret->SetDexFieldIndex<kTransactionActive>(dex_field_index);
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ret->SetOffset<kTransactionActive>(field->GetOffset().Int32Value());
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return ret.Get();
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}
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template<bool kTransactionActive>
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inline void Field::SetDeclaringClass(ObjPtr<mirror::Class> c) {
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SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_), c);
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}
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template<bool kTransactionActive>
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inline void Field::SetType(ObjPtr<mirror::Class> type) {
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SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, type_), type);
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}
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} // namespace mirror
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} // namespace art
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#endif // ART_RUNTIME_MIRROR_FIELD_INL_H_
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