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/*
* Copyright (C) 2011 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_ART_FIELD_H_
#define ART_RUNTIME_MIRROR_ART_FIELD_H_
#include <jni.h>
#include "gc_root.h"
#include "modifiers.h"
#include "object.h"
#include "object_callbacks.h"
#include "primitive.h"
#include "read_barrier_option.h"
namespace art {
struct ArtFieldOffsets;
class DexFile;
class ScopedObjectAccessAlreadyRunnable;
namespace mirror {
class DexCache;
// C++ mirror of java.lang.reflect.ArtField
class MANAGED ArtField FINAL : public Object {
public:
// Size of java.lang.reflect.ArtField.class.
static uint32_t ClassSize();
// Size of an instance of java.lang.reflect.ArtField not including its value array.
static constexpr uint32_t InstanceSize() {
return sizeof(ArtField);
}
ALWAYS_INLINE static ArtField* FromReflectedField(const ScopedObjectAccessAlreadyRunnable& soa,
jobject jlr_field)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
Class* GetDeclaringClass() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void SetDeclaringClass(Class *new_declaring_class) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
uint32_t GetAccessFlags() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void SetAccessFlags(uint32_t new_access_flags) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
// Not called within a transaction.
SetField32<false>(OFFSET_OF_OBJECT_MEMBER(ArtField, access_flags_), new_access_flags);
}
bool IsPublic() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return (GetAccessFlags() & kAccPublic) != 0;
}
bool IsStatic() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return (GetAccessFlags() & kAccStatic) != 0;
}
bool IsFinal() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return (GetAccessFlags() & kAccFinal) != 0;
}
uint32_t GetDexFieldIndex() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return GetField32(OFFSET_OF_OBJECT_MEMBER(ArtField, field_dex_idx_));
}
void SetDexFieldIndex(uint32_t new_idx) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
// Not called within a transaction.
SetField32<false>(OFFSET_OF_OBJECT_MEMBER(ArtField, field_dex_idx_), new_idx);
}
// Offset to field within an Object.
MemberOffset GetOffset() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
static MemberOffset OffsetOffset() {
return MemberOffset(OFFSETOF_MEMBER(ArtField, offset_));
}
MemberOffset GetOffsetDuringLinking() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void SetOffset(MemberOffset num_bytes) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// field access, null object for static fields
uint8_t GetBoolean(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetBoolean(Object* object, uint8_t z) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
int8_t GetByte(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetByte(Object* object, int8_t b) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
uint16_t GetChar(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetChar(Object* object, uint16_t c) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
int16_t GetShort(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetShort(Object* object, int16_t s) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
int32_t GetInt(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetInt(Object* object, int32_t i) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
int64_t GetLong(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetLong(Object* object, int64_t j) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
float GetFloat(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetFloat(Object* object, float f) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
double GetDouble(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetDouble(Object* object, double d) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
Object* GetObject(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetObject(Object* object, Object* l) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Raw field accesses.
uint32_t Get32(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void Set32(Object* object, uint32_t new_value) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
uint64_t Get64(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void Set64(Object* object, uint64_t new_value) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
Object* GetObj(Object* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<bool kTransactionActive>
void SetObj(Object* object, Object* new_value) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
template<ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
static Class* GetJavaLangReflectArtField() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
DCHECK(!java_lang_reflect_ArtField_.IsNull());
return java_lang_reflect_ArtField_.Read<kReadBarrierOption>();
}
static void SetClass(Class* java_lang_reflect_ArtField);
static void ResetClass();
static void VisitRoots(RootCallback* callback, void* arg)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool IsVolatile() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return (GetAccessFlags() & kAccVolatile) != 0;
}
// Returns an instance field with this offset in the given class or nullptr if not found.
static ArtField* FindInstanceFieldWithOffset(mirror::Class* klass, uint32_t field_offset)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const char* GetName() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const char* GetTypeDescriptor() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
Primitive::Type GetTypeAsPrimitiveType() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool IsPrimitiveType() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
Class* GetType(bool resolve) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
size_t FieldSize() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
mirror::DexCache* GetDexCache() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
const DexFile* GetDexFile() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
private:
// Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses".
// The class we are a part of
HeapReference<Class> declaring_class_;
uint32_t access_flags_;
// Dex cache index of field id
uint32_t field_dex_idx_;
// Offset of field within an instance or in the Class' static fields
uint32_t offset_;
static GcRoot<Class> java_lang_reflect_ArtField_;
friend struct art::ArtFieldOffsets; // for verifying offset information
DISALLOW_IMPLICIT_CONSTRUCTORS(ArtField);
};
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_ART_FIELD_H_