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145 lines
4.6 KiB
145 lines
4.6 KiB
/*
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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_H_
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#define ART_RUNTIME_MIRROR_FIELD_H_
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#include "accessible_object.h"
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#include "base/enums.h"
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#include "dex/modifiers.h"
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#include "dex/primitive.h"
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#include "obj_ptr.h"
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#include "object.h"
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#include "read_barrier_option.h"
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namespace art {
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class ArtField;
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struct FieldOffsets;
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class ReflectiveValueVisitor;
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namespace mirror {
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class Class;
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class String;
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// C++ mirror of java.lang.reflect.Field.
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class MANAGED Field : public AccessibleObject {
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public:
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MIRROR_CLASS("Ljava/lang/reflect/Field;");
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ALWAYS_INLINE uint32_t GetArtFieldIndex() REQUIRES_SHARED(Locks::mutator_lock_) {
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return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, art_field_index_));
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}
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ObjPtr<mirror::Class> GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_);
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uint32_t GetAccessFlags() REQUIRES_SHARED(Locks::mutator_lock_) {
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return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_));
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}
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bool IsStatic() REQUIRES_SHARED(Locks::mutator_lock_) {
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return (GetAccessFlags() & kAccStatic) != 0;
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}
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bool IsFinal() REQUIRES_SHARED(Locks::mutator_lock_) {
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return (GetAccessFlags() & kAccFinal) != 0;
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}
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bool IsVolatile() REQUIRES_SHARED(Locks::mutator_lock_) {
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return (GetAccessFlags() & kAccVolatile) != 0;
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}
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ALWAYS_INLINE Primitive::Type GetTypeAsPrimitiveType() REQUIRES_SHARED(Locks::mutator_lock_);
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ObjPtr<mirror::Class> GetType() REQUIRES_SHARED(Locks::mutator_lock_);
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int32_t GetOffset() REQUIRES_SHARED(Locks::mutator_lock_) {
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return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_));
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}
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ArtField* GetArtField() REQUIRES_SHARED(Locks::mutator_lock_);
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static ObjPtr<mirror::Field> CreateFromArtField(Thread* self,
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ArtField* field,
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bool force_resolve)
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REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
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// Used to modify the target of this Field object, if required for structural redefinition or some
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// other purpose.
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void VisitTarget(ReflectiveValueVisitor* v) REQUIRES(Locks::mutator_lock_);
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private:
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// Padding required for matching alignment with the Java peer.
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uint8_t padding_[3];
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HeapReference<mirror::Class> declaring_class_;
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HeapReference<mirror::Class> type_;
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int32_t access_flags_;
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int32_t art_field_index_;
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int32_t offset_;
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static constexpr MemberOffset DeclaringClassOffset() {
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return OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_);
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}
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static constexpr MemberOffset TypeOffset() {
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return OFFSET_OF_OBJECT_MEMBER(Field, type_);
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}
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static constexpr MemberOffset AccessFlagsOffset() {
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return OFFSET_OF_OBJECT_MEMBER(Field, access_flags_);
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}
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static constexpr MemberOffset ArtFieldIndexOffset() {
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return OFFSET_OF_OBJECT_MEMBER(Field, art_field_index_);
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}
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static constexpr MemberOffset OffsetOffset() {
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return OFFSET_OF_OBJECT_MEMBER(Field, offset_);
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}
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template<bool kTransactionActive, bool kCheckTransaction = true>
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void SetDeclaringClass(ObjPtr<Class> c) REQUIRES_SHARED(Locks::mutator_lock_);
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template<bool kTransactionActive, bool kCheckTransaction = true>
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void SetType(ObjPtr<Class> type) REQUIRES_SHARED(Locks::mutator_lock_);
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template<bool kTransactionActive, bool kCheckTransaction = true>
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void SetAccessFlags(uint32_t access_flags) REQUIRES_SHARED(Locks::mutator_lock_) {
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SetField32<kTransactionActive, kCheckTransaction>(AccessFlagsOffset(), access_flags);
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}
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template<bool kTransactionActive, bool kCheckTransaction = true>
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void SetArtFieldIndex(uint32_t idx) REQUIRES_SHARED(Locks::mutator_lock_) {
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SetField32<kTransactionActive, kCheckTransaction>(ArtFieldIndexOffset(), idx);
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}
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template<bool kTransactionActive, bool kCheckTransaction = true>
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void SetOffset(uint32_t offset) REQUIRES_SHARED(Locks::mutator_lock_) {
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SetField32<kTransactionActive, kCheckTransaction>(OffsetOffset(), offset);
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}
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friend struct art::FieldOffsets; // for verifying offset information
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DISALLOW_IMPLICIT_CONSTRUCTORS(Field);
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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_H_
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