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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_INL_H_
#define ART_RUNTIME_MIRROR_ART_FIELD_INL_H_
#include "art_field.h"
#include "base/logging.h"
#include "class_linker.h"
#include "dex_cache.h"
#include "gc/accounting/card_table-inl.h"
#include "jvalue.h"
#include "object-inl.h"
#include "primitive.h"
#include "thread-inl.h"
#include "scoped_thread_state_change.h"
#include "well_known_classes.h"
namespace art {
namespace mirror {
inline uint32_t ArtField::ClassSize() {
uint32_t vtable_entries = Object::kVTableLength + 6;
return Class::ComputeClassSize(true, vtable_entries, 0, 0, 0, 0, 0);
}
inline Class* ArtField::GetDeclaringClass() {
Class* result = GetFieldObject<Class>(OFFSET_OF_OBJECT_MEMBER(ArtField, declaring_class_));
DCHECK(result != NULL);
DCHECK(result->IsLoaded() || result->IsErroneous());
return result;
}
inline void ArtField::SetDeclaringClass(Class *new_declaring_class) {
SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(ArtField, declaring_class_), new_declaring_class);
}
inline uint32_t ArtField::GetAccessFlags() {
DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
return GetField32(OFFSET_OF_OBJECT_MEMBER(ArtField, access_flags_));
}
inline MemberOffset ArtField::GetOffset() {
DCHECK(GetDeclaringClass()->IsResolved() || GetDeclaringClass()->IsErroneous());
return MemberOffset(GetField32(OFFSET_OF_OBJECT_MEMBER(ArtField, offset_)));
}
inline MemberOffset ArtField::GetOffsetDuringLinking() {
DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
return MemberOffset(GetField32(OFFSET_OF_OBJECT_MEMBER(ArtField, offset_)));
}
inline uint32_t ArtField::Get32(Object* object) {
DCHECK(object != nullptr) << PrettyField(this);
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
if (UNLIKELY(IsVolatile())) {
return object->GetField32Volatile(GetOffset());
}
return object->GetField32(GetOffset());
}
template<bool kTransactionActive>
inline void ArtField::Set32(Object* object, uint32_t new_value) {
DCHECK(object != nullptr) << PrettyField(this);
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
if (UNLIKELY(IsVolatile())) {
object->SetField32Volatile<kTransactionActive>(GetOffset(), new_value);
} else {
object->SetField32<kTransactionActive>(GetOffset(), new_value);
}
}
inline uint64_t ArtField::Get64(Object* object) {
DCHECK(object != NULL) << PrettyField(this);
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
if (UNLIKELY(IsVolatile())) {
return object->GetField64Volatile(GetOffset());
}
return object->GetField64(GetOffset());
}
template<bool kTransactionActive>
inline void ArtField::Set64(Object* object, uint64_t new_value) {
DCHECK(object != NULL) << PrettyField(this);
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
if (UNLIKELY(IsVolatile())) {
object->SetField64Volatile<kTransactionActive>(GetOffset(), new_value);
} else {
object->SetField64<kTransactionActive>(GetOffset(), new_value);
}
}
inline Object* ArtField::GetObj(Object* object) {
DCHECK(object != NULL) << PrettyField(this);
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
if (UNLIKELY(IsVolatile())) {
return object->GetFieldObjectVolatile<Object>(GetOffset());
}
return object->GetFieldObject<Object>(GetOffset());
}
template<bool kTransactionActive>
inline void ArtField::SetObj(Object* object, Object* new_value) {
DCHECK(object != NULL) << PrettyField(this);
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
if (UNLIKELY(IsVolatile())) {
object->SetFieldObjectVolatile<kTransactionActive>(GetOffset(), new_value);
} else {
object->SetFieldObject<kTransactionActive>(GetOffset(), new_value);
}
}
#define FIELD_GET(object, type) \
DCHECK_EQ(Primitive::kPrim ## type, GetTypeAsPrimitiveType()) << PrettyField(this); \
DCHECK(object != nullptr) << PrettyField(this); \
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted()); \
if (UNLIKELY(IsVolatile())) { \
return object->GetField ## type ## Volatile(GetOffset()); \
} \
return object->GetField ## type(GetOffset());
#define FIELD_SET(object, type, value) \
DCHECK_EQ(Primitive::kPrim ## type, GetTypeAsPrimitiveType()) << PrettyField(this); \
DCHECK(object != nullptr) << PrettyField(this); \
DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted()); \
if (UNLIKELY(IsVolatile())) { \
object->SetField ## type ## Volatile<kTransactionActive>(GetOffset(), value); \
} else { \
object->SetField ## type<kTransactionActive>(GetOffset(), value); \
}
inline uint8_t ArtField::GetBoolean(Object* object) {
FIELD_GET(object, Boolean);
}
template<bool kTransactionActive>
inline void ArtField::SetBoolean(Object* object, uint8_t z) {
FIELD_SET(object, Boolean, z);
}
inline int8_t ArtField::GetByte(Object* object) {
FIELD_GET(object, Byte);
}
template<bool kTransactionActive>
inline void ArtField::SetByte(Object* object, int8_t b) {
FIELD_SET(object, Byte, b);
}
inline uint16_t ArtField::GetChar(Object* object) {
FIELD_GET(object, Char);
}
template<bool kTransactionActive>
inline void ArtField::SetChar(Object* object, uint16_t c) {
FIELD_SET(object, Char, c);
}
inline int16_t ArtField::GetShort(Object* object) {
FIELD_GET(object, Short);
}
template<bool kTransactionActive>
inline void ArtField::SetShort(Object* object, int16_t s) {
FIELD_SET(object, Short, s);
}
#undef FIELD_GET
#undef FIELD_SET
inline int32_t ArtField::GetInt(Object* object) {
if (kIsDebugBuild) {
Primitive::Type type = GetTypeAsPrimitiveType();
CHECK(type == Primitive::kPrimInt || type == Primitive::kPrimFloat) << PrettyField(this);
}
return Get32(object);
}
template<bool kTransactionActive>
inline void ArtField::SetInt(Object* object, int32_t i) {
if (kIsDebugBuild) {
Primitive::Type type = GetTypeAsPrimitiveType();
CHECK(type == Primitive::kPrimInt || type == Primitive::kPrimFloat) << PrettyField(this);
}
Set32<kTransactionActive>(object, i);
}
inline int64_t ArtField::GetLong(Object* object) {
if (kIsDebugBuild) {
Primitive::Type type = GetTypeAsPrimitiveType();
CHECK(type == Primitive::kPrimLong || type == Primitive::kPrimDouble) << PrettyField(this);
}
return Get64(object);
}
template<bool kTransactionActive>
inline void ArtField::SetLong(Object* object, int64_t j) {
if (kIsDebugBuild) {
Primitive::Type type = GetTypeAsPrimitiveType();
CHECK(type == Primitive::kPrimLong || type == Primitive::kPrimDouble) << PrettyField(this);
}
Set64<kTransactionActive>(object, j);
}
inline float ArtField::GetFloat(Object* object) {
DCHECK_EQ(Primitive::kPrimFloat, GetTypeAsPrimitiveType()) << PrettyField(this);
JValue bits;
bits.SetI(Get32(object));
return bits.GetF();
}
template<bool kTransactionActive>
inline void ArtField::SetFloat(Object* object, float f) {
DCHECK_EQ(Primitive::kPrimFloat, GetTypeAsPrimitiveType()) << PrettyField(this);
JValue bits;
bits.SetF(f);
Set32<kTransactionActive>(object, bits.GetI());
}
inline double ArtField::GetDouble(Object* object) {
DCHECK_EQ(Primitive::kPrimDouble, GetTypeAsPrimitiveType()) << PrettyField(this);
JValue bits;
bits.SetJ(Get64(object));
return bits.GetD();
}
template<bool kTransactionActive>
inline void ArtField::SetDouble(Object* object, double d) {
DCHECK_EQ(Primitive::kPrimDouble, GetTypeAsPrimitiveType()) << PrettyField(this);
JValue bits;
bits.SetD(d);
Set64<kTransactionActive>(object, bits.GetJ());
}
inline Object* ArtField::GetObject(Object* object) {
DCHECK_EQ(Primitive::kPrimNot, GetTypeAsPrimitiveType()) << PrettyField(this);
return GetObj(object);
}
template<bool kTransactionActive>
inline void ArtField::SetObject(Object* object, Object* l) {
DCHECK_EQ(Primitive::kPrimNot, GetTypeAsPrimitiveType()) << PrettyField(this);
SetObj<kTransactionActive>(object, l);
}
inline const char* ArtField::GetName() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
uint32_t field_index = GetDexFieldIndex();
if (UNLIKELY(GetDeclaringClass()->IsProxyClass())) {
DCHECK(IsStatic());
DCHECK_LT(field_index, 2U);
return field_index == 0 ? "interfaces" : "throws";
}
const DexFile* dex_file = GetDexFile();
return dex_file->GetFieldName(dex_file->GetFieldId(field_index));
}
inline const char* ArtField::GetTypeDescriptor() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
uint32_t field_index = GetDexFieldIndex();
if (UNLIKELY(GetDeclaringClass()->IsProxyClass())) {
DCHECK(IsStatic());
DCHECK_LT(field_index, 2U);
// 0 == Class[] interfaces; 1 == Class[][] throws;
return field_index == 0 ? "[Ljava/lang/Class;" : "[[Ljava/lang/Class;";
}
const DexFile* dex_file = GetDexFile();
const DexFile::FieldId& field_id = dex_file->GetFieldId(field_index);
return dex_file->GetFieldTypeDescriptor(field_id);
}
inline Primitive::Type ArtField::GetTypeAsPrimitiveType()
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return Primitive::GetType(GetTypeDescriptor()[0]);
}
inline bool ArtField::IsPrimitiveType() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return GetTypeAsPrimitiveType() != Primitive::kPrimNot;
}
inline Class* ArtField::GetType(bool resolve) {
uint32_t field_index = GetDexFieldIndex();
if (UNLIKELY(GetDeclaringClass()->IsProxyClass())) {
return Runtime::Current()->GetClassLinker()->FindSystemClass(Thread::Current(),
GetTypeDescriptor());
}
const DexFile* dex_file = GetDexFile();
const DexFile::FieldId& field_id = dex_file->GetFieldId(field_index);
mirror::Class* type = GetDexCache()->GetResolvedType(field_id.type_idx_);
if (resolve && (type == nullptr)) {
type = Runtime::Current()->GetClassLinker()->ResolveType(field_id.type_idx_, this);
CHECK(type != nullptr || Thread::Current()->IsExceptionPending());
}
return type;
}
inline size_t ArtField::FieldSize() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return Primitive::ComponentSize(GetTypeAsPrimitiveType());
}
inline mirror::DexCache* ArtField::GetDexCache() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return GetDeclaringClass()->GetDexCache();
}
inline const DexFile* ArtField::GetDexFile() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return GetDexCache()->GetDexFile();
}
inline ArtField* ArtField::FromReflectedField(const ScopedObjectAccessAlreadyRunnable& soa,
jobject jlr_field) {
mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_reflect_Field_artField);
mirror::ArtField* field = f->GetObject(soa.Decode<mirror::Object*>(jlr_field))->AsArtField();
DCHECK(field != nullptr);
return field;
}
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_ART_FIELD_INL_H_