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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_SRC_MIRROR_OBJECT_ARRAY_INL_H_
#define ART_SRC_MIRROR_OBJECT_ARRAY_INL_H_
#include "object_array.h"
#include "gc/heap.h"
#include "mirror/class.h"
#include "mirror/field.h"
#include "runtime.h"
#include "thread.h"
namespace art {
namespace mirror {
template<class T>
inline ObjectArray<T>* ObjectArray<T>::Alloc(Thread* self, Class* object_array_class, int32_t length) {
Array* array = Array::Alloc(self, object_array_class, length, sizeof(Object*));
if (UNLIKELY(array == NULL)) {
return NULL;
} else {
return array->AsObjectArray<T>();
}
}
template<class T>
inline T* ObjectArray<T>::Get(int32_t i) const {
if (UNLIKELY(!IsValidIndex(i))) {
return NULL;
}
MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*));
return GetFieldObject<T*>(data_offset, false);
}
template<class T>
inline bool ObjectArray<T>::CheckAssignable(T* object) {
if (object != NULL) {
Class* element_class = GetClass()->GetComponentType();
if (UNLIKELY(!object->InstanceOf(element_class))) {
ThrowArrayStoreException(object);
return false;
}
}
return true;
}
template<class T>
inline void ObjectArray<T>::Set(int32_t i, T* object) {
if (LIKELY(IsValidIndex(i) && CheckAssignable(object))) {
MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*));
SetFieldObject(data_offset, object, false);
} else {
DCHECK(Thread::Current()->IsExceptionPending());
}
}
template<class T>
inline void ObjectArray<T>::SetWithoutChecks(int32_t i, T* object) {
DCHECK(IsValidIndex(i));
MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*));
SetFieldObject(data_offset, object, false);
}
template<class T>
inline void ObjectArray<T>::SetPtrWithoutChecks(int32_t i, T* object) {
DCHECK(IsValidIndex(i));
MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*));
SetFieldPtr(data_offset, object, false);
}
template<class T>
inline T* ObjectArray<T>::GetWithoutChecks(int32_t i) const {
DCHECK(IsValidIndex(i));
MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*));
return GetFieldObject<T*>(data_offset, false);
}
template<class T>
inline void ObjectArray<T>::Copy(const ObjectArray<T>* src, int src_pos,
ObjectArray<T>* dst, int dst_pos,
size_t length) {
if (src->IsValidIndex(src_pos) &&
src->IsValidIndex(src_pos+length-1) &&
dst->IsValidIndex(dst_pos) &&
dst->IsValidIndex(dst_pos+length-1)) {
MemberOffset src_offset(DataOffset(sizeof(Object*)).Int32Value() + src_pos * sizeof(Object*));
MemberOffset dst_offset(DataOffset(sizeof(Object*)).Int32Value() + dst_pos * sizeof(Object*));
Class* array_class = dst->GetClass();
gc::Heap* heap = Runtime::Current()->GetHeap();
if (array_class == src->GetClass()) {
// No need for array store checks if arrays are of the same type
for (size_t i = 0; i < length; i++) {
Object* object = src->GetFieldObject<Object*>(src_offset, false);
heap->VerifyObject(object);
// directly set field, we do a bulk write barrier at the end
dst->SetField32(dst_offset, reinterpret_cast<uint32_t>(object), false, true);
src_offset = MemberOffset(src_offset.Uint32Value() + sizeof(Object*));
dst_offset = MemberOffset(dst_offset.Uint32Value() + sizeof(Object*));
}
} else {
Class* element_class = array_class->GetComponentType();
CHECK(!element_class->IsPrimitive());
for (size_t i = 0; i < length; i++) {
Object* object = src->GetFieldObject<Object*>(src_offset, false);
if (object != NULL && !object->InstanceOf(element_class)) {
dst->ThrowArrayStoreException(object);
return;
}
heap->VerifyObject(object);
// directly set field, we do a bulk write barrier at the end
dst->SetField32(dst_offset, reinterpret_cast<uint32_t>(object), false, true);
src_offset = MemberOffset(src_offset.Uint32Value() + sizeof(Object*));
dst_offset = MemberOffset(dst_offset.Uint32Value() + sizeof(Object*));
}
}
heap->WriteBarrierArray(dst, dst_pos, length);
}
}
template<class T>
inline ObjectArray<T>* ObjectArray<T>::CopyOf(Thread* self, int32_t new_length) {
ObjectArray<T>* new_array = Alloc(self, GetClass(), new_length);
Copy(this, 0, new_array, 0, std::min(GetLength(), new_length));
return new_array;
}
} // namespace mirror
} // namespace art
#endif // ART_SRC_MIRROR_OBJET_ARRAY_INL_H_
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