| /* |
| * 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 "gc_root.h" |
| #include "obj_ptr.h" |
| #include "object.h" |
| #include "read_barrier_option.h" |
| |
| namespace art { |
| |
| class ArtField; |
| struct FieldOffsets; |
| |
| namespace mirror { |
| |
| class Class; |
| class String; |
| |
| // C++ mirror of java.lang.reflect.Field. |
| class MANAGED Field : public AccessibleObject { |
| public: |
| static mirror::Class* StaticClass() REQUIRES_SHARED(Locks::mutator_lock_) { |
| return static_class_.Read(); |
| } |
| |
| static mirror::Class* ArrayClass() REQUIRES_SHARED(Locks::mutator_lock_) { |
| return array_class_.Read(); |
| } |
| |
| ALWAYS_INLINE uint32_t GetDexFieldIndex() REQUIRES_SHARED(Locks::mutator_lock_) { |
| return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, dex_field_index_)); |
| } |
| |
| mirror::Class* GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_) { |
| return GetFieldObject<Class>(OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_)); |
| } |
| |
| 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_); |
| |
| mirror::Class* GetType() REQUIRES_SHARED(Locks::mutator_lock_) { |
| return GetFieldObject<mirror::Class>(OFFSET_OF_OBJECT_MEMBER(Field, type_)); |
| } |
| |
| int32_t GetOffset() REQUIRES_SHARED(Locks::mutator_lock_) { |
| return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_)); |
| } |
| |
| static void SetClass(ObjPtr<Class> klass) REQUIRES_SHARED(Locks::mutator_lock_); |
| static void ResetClass() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| static void SetArrayClass(ObjPtr<Class> klass) REQUIRES_SHARED(Locks::mutator_lock_); |
| static void ResetArrayClass() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| static void VisitRoots(RootVisitor* visitor) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Slow, try to use only for PrettyField and such. |
| ArtField* GetArtField() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| template <PointerSize kPointerSize, bool kTransactionActive = false> |
| static mirror::Field* CreateFromArtField(Thread* self, ArtField* field, |
| bool force_resolve) |
| REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_); |
| |
| 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 dex_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 SetDexFieldIndex(uint32_t idx) REQUIRES_SHARED(Locks::mutator_lock_) { |
| SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, dex_field_index_), idx); |
| } |
| |
| template<bool kTransactionActive> |
| void SetOffset(uint32_t offset) REQUIRES_SHARED(Locks::mutator_lock_) { |
| SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, offset_), offset); |
| } |
| |
| static GcRoot<Class> static_class_; // java.lang.reflect.Field.class. |
| static GcRoot<Class> array_class_; // array of java.lang.reflect.Field. |
| |
| friend struct art::FieldOffsets; // for verifying offset information |
| DISALLOW_IMPLICIT_CONSTRUCTORS(Field); |
| }; |
| |
| } // namespace mirror |
| } // namespace art |
| |
| #endif // ART_RUNTIME_MIRROR_FIELD_H_ |