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/*
* Copyright (C) 2015 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.
*/
#ifndef ART_RUNTIME_MIRROR_FIELD_H_
#define ART_RUNTIME_MIRROR_FIELD_H_
#include "accessible_object.h"
#include "base/enums.h"
#include "dex/modifiers.h"
#include "dex/primitive.h"
#include "obj_ptr.h"
#include "object.h"
#include "read_barrier_option.h"
namespace art {
class ArtField;
struct FieldOffsets;
class ReflectiveValueVisitor;
namespace mirror {
class Class;
class String;
// C++ mirror of java.lang.reflect.Field.
class MANAGED Field : public AccessibleObject {
public:
ALWAYS_INLINE uint32_t GetArtFieldIndex() REQUIRES_SHARED(Locks::mutator_lock_) {
return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, art_field_index_));
}
// Public for use by class redefinition code.
template<bool kTransactionActive>
void SetArtFieldIndex(uint32_t idx) REQUIRES_SHARED(Locks::mutator_lock_) {
SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, art_field_index_), idx);
}
ObjPtr<mirror::Class> GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_);
uint32_t GetAccessFlags() REQUIRES_SHARED(Locks::mutator_lock_) {
return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_));
}
bool IsStatic() REQUIRES_SHARED(Locks::mutator_lock_) {
return (GetAccessFlags() & kAccStatic) != 0;
}
bool IsFinal() REQUIRES_SHARED(Locks::mutator_lock_) {
return (GetAccessFlags() & kAccFinal) != 0;
}
bool IsVolatile() REQUIRES_SHARED(Locks::mutator_lock_) {
return (GetAccessFlags() & kAccVolatile) != 0;
}
ALWAYS_INLINE Primitive::Type GetTypeAsPrimitiveType() REQUIRES_SHARED(Locks::mutator_lock_);
ObjPtr<mirror::Class> GetType() REQUIRES_SHARED(Locks::mutator_lock_);
int32_t GetOffset() REQUIRES_SHARED(Locks::mutator_lock_) {
return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_));
}
ArtField* GetArtField() REQUIRES_SHARED(Locks::mutator_lock_);
template <PointerSize kPointerSize, bool kTransactionActive = false>
static ObjPtr<mirror::Field> CreateFromArtField(Thread* self,
ArtField* field,
bool force_resolve)
REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
// Used to modify the target of this Field object, if required for structural redefinition or some
// other purpose.
void VisitTarget(ReflectiveValueVisitor* v) REQUIRES(Locks::mutator_lock_);
private:
// Padding required for matching alignment with the Java peer.
uint8_t padding_[2];
HeapReference<mirror::Class> declaring_class_;
HeapReference<mirror::Class> type_;
int32_t access_flags_;
int32_t art_field_index_;
int32_t offset_;
template<bool kTransactionActive>
void SetDeclaringClass(ObjPtr<mirror::Class> c) REQUIRES_SHARED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetType(ObjPtr<mirror::Class> type) REQUIRES_SHARED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetAccessFlags(uint32_t flags) REQUIRES_SHARED(Locks::mutator_lock_) {
SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_), flags);
}
template<bool kTransactionActive>
void SetOffset(uint32_t offset) REQUIRES_SHARED(Locks::mutator_lock_) {
SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, offset_), offset);
}
friend struct art::FieldOffsets; // for verifying offset information
DISALLOW_IMPLICIT_CONSTRUCTORS(Field);
};
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_FIELD_H_
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