src/mirror/field-inl.h

/*
 * 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_SRC_MIRROR_FIELD_INL_H_
#define ART_SRC_MIRROR_FIELD_INL_H_

#include "field.h"

#include "base/logging.h"
#include "gc/card_table-inl.h"
#include "jvalue.h"
#include "object-inl.h"
#include "object_utils.h"
#include "primitive.h"

namespace art {
namespace mirror {

inline Class* Field::GetDeclaringClass() const {
  Class* result = GetFieldObject<Class*>(OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_), false);
  DCHECK(result != NULL);
  DCHECK(result->IsLoaded() || result->IsErroneous());
  return result;
}

inline void Field::SetDeclaringClass(Class *new_declaring_class) {
  SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_), new_declaring_class, false);
}

inline uint32_t Field::GetAccessFlags() const {
  DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
  return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_), false);
}

inline MemberOffset Field::GetOffset() const {
  DCHECK(GetDeclaringClass()->IsResolved() || GetDeclaringClass()->IsErroneous());
  return MemberOffset(GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_), false));
}

inline MemberOffset Field::GetOffsetDuringLinking() const {
  DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
  return MemberOffset(GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_), false));
}

inline uint32_t Field::Get32(const Object* object) const {
  DCHECK(object != NULL) << PrettyField(this);
  DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
  return object->GetField32(GetOffset(), IsVolatile());
}

inline void Field::Set32(Object* object, uint32_t new_value) const {
  DCHECK(object != NULL) << PrettyField(this);
  DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
  object->SetField32(GetOffset(), new_value, IsVolatile());
}

inline uint64_t Field::Get64(const Object* object) const {
  DCHECK(object != NULL) << PrettyField(this);
  DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
  return object->GetField64(GetOffset(), IsVolatile());
}

inline void Field::Set64(Object* object, uint64_t new_value) const {
  DCHECK(object != NULL) << PrettyField(this);
  DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
  object->SetField64(GetOffset(), new_value, IsVolatile());
}

inline Object* Field::GetObj(const Object* object) const {
  DCHECK(object != NULL) << PrettyField(this);
  DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
  return object->GetFieldObject<Object*>(GetOffset(), IsVolatile());
}

inline void Field::SetObj(Object* object, const Object* new_value) const {
  DCHECK(object != NULL) << PrettyField(this);
  DCHECK(!IsStatic() || (object == GetDeclaringClass()) || !Runtime::Current()->IsStarted());
  object->SetFieldObject(GetOffset(), new_value, IsVolatile());
}

inline bool Field::GetBoolean(const Object* object) const {
  DCHECK_EQ(Primitive::kPrimBoolean, FieldHelper(this).GetTypeAsPrimitiveType())
      << PrettyField(this);
  return Get32(object);
}

inline void Field::SetBoolean(Object* object, bool z) const {
  DCHECK_EQ(Primitive::kPrimBoolean, FieldHelper(this).GetTypeAsPrimitiveType())
      << PrettyField(this);
  Set32(object, z);
}

inline int8_t Field::GetByte(const Object* object) const {
  DCHECK_EQ(Primitive::kPrimByte, FieldHelper(this).GetTypeAsPrimitiveType())
      << PrettyField(this);
  return Get32(object);
}

inline void Field::SetByte(Object* object, int8_t b) const {
  DCHECK_EQ(Primitive::kPrimByte, FieldHelper(this).GetTypeAsPrimitiveType())
      << PrettyField(this);
  Set32(object, b);
}

inline uint16_t Field::GetChar(const Object* object) const {
  DCHECK_EQ(Primitive::kPrimChar, FieldHelper(this).GetTypeAsPrimitiveType())
      << PrettyField(this);
  return Get32(object);
}

inline void Field::SetChar(Object* object, uint16_t c) const {
  DCHECK_EQ(Primitive::kPrimChar, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  Set32(object, c);
}

inline int16_t Field::GetShort(const Object* object) const {
  DCHECK_EQ(Primitive::kPrimShort, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  return Get32(object);
}

inline void Field::SetShort(Object* object, int16_t s) const {
  DCHECK_EQ(Primitive::kPrimShort, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  Set32(object, s);
}

inline int32_t Field::GetInt(const Object* object) const {
#ifndef NDEBUG
  Primitive::Type type = FieldHelper(this).GetTypeAsPrimitiveType();
  CHECK(type == Primitive::kPrimInt || type == Primitive::kPrimFloat) << PrettyField(this);
#endif
  return Get32(object);
}

inline void Field::SetInt(Object* object, int32_t i) const {
#ifndef NDEBUG
  Primitive::Type type = FieldHelper(this).GetTypeAsPrimitiveType();
  CHECK(type == Primitive::kPrimInt || type == Primitive::kPrimFloat) << PrettyField(this);
#endif
  Set32(object, i);
}

inline int64_t Field::GetLong(const Object* object) const {
#ifndef NDEBUG
  Primitive::Type type = FieldHelper(this).GetTypeAsPrimitiveType();
  CHECK(type == Primitive::kPrimLong || type == Primitive::kPrimDouble) << PrettyField(this);
#endif
  return Get64(object);
}

inline void Field::SetLong(Object* object, int64_t j) const {
#ifndef NDEBUG
  Primitive::Type type = FieldHelper(this).GetTypeAsPrimitiveType();
  CHECK(type == Primitive::kPrimLong || type == Primitive::kPrimDouble) << PrettyField(this);
#endif
  Set64(object, j);
}

inline float Field::GetFloat(const Object* object) const {
  DCHECK_EQ(Primitive::kPrimFloat, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  JValue bits;
  bits.SetI(Get32(object));
  return bits.GetF();
}

inline void Field::SetFloat(Object* object, float f) const {
  DCHECK_EQ(Primitive::kPrimFloat, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  JValue bits;
  bits.SetF(f);
  Set32(object, bits.GetI());
}

inline double Field::GetDouble(const Object* object) const {
  DCHECK_EQ(Primitive::kPrimDouble, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  JValue bits;
  bits.SetJ(Get64(object));
  return bits.GetD();
}

inline void Field::SetDouble(Object* object, double d) const {
  DCHECK_EQ(Primitive::kPrimDouble, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  JValue bits;
  bits.SetD(d);
  Set64(object, bits.GetJ());
}

inline Object* Field::GetObject(const Object* object) const {
  DCHECK_EQ(Primitive::kPrimNot, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  return GetObj(object);
}

inline void Field::SetObject(Object* object, const Object* l) const {
  DCHECK_EQ(Primitive::kPrimNot, FieldHelper(this).GetTypeAsPrimitiveType())
       << PrettyField(this);
  SetObj(object, l);
}

}  // namespace mirror
}  // namespace art

#endif  // ART_SRC_MIRROR_FIELD_INL_H_