TOptPointerVector.h

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// SPDX-License-Identifier: LGPL-2.1-or-later OR GPL-2.0-or-later OR GPL-3.0-or-later OR LicenseRef-ACF-Commercial
#pragma once
 
 
// ACF includes
#include <istd/TPointerVector.h>
 
 
namespace istd
{
 
 
template<typename Pointer>
class TOptDeleteAdapter
{
public:
       struct ElementType
       {
              Pointer* pointer = nullptr;
              bool releaseFlag = false;
       };
 
       static Pointer* GetPtr(const ElementType& element)
       {
              return element.pointer;
       }
 
       static Pointer* PopPtr(const ElementType& element)
       {
              return GetPtr(element);
       }
 
       static void Delete(const ElementType& element)
       {
              if (element.releaseFlag && (element.pointer != nullptr)){
                     delete element.pointer;
              }
       }
};
 
 
template <typename Pointer>
class TOptPointerVector: public TPointerVector<Pointer, TOptDeleteAdapter<Pointer> >
{
public:
       typedef TPointerVector<Pointer, TOptDeleteAdapter<Pointer> > BaseClass;
 
       void SetAt(int index, Pointer* pointer, bool releaseFlag = false);
       void PushBack(Pointer* pointer, bool releaseFlag = false);
       void InsertAt(int index, Pointer* pointer, bool releaseFlag = false);
};
 
 
// public methods
 
template <typename Pointer>
void TOptPointerVector<Pointer>::SetAt(int index, Pointer* pointer, bool releaseFlag)
{
       typename TOptDeleteAdapter<Pointer>::ElementType element;
       element.pointer = pointer;
       element.releaseFlag = releaseFlag;
 
       BaseClass::SetElementAt(index, element);
}
 
 
template <typename Pointer>
void TOptPointerVector<Pointer>::PushBack(Pointer* pointer, bool releaseFlag)
{
       typename TOptDeleteAdapter<Pointer>::ElementType element;
       element.pointer = pointer;
       element.releaseFlag = releaseFlag;
 
       BaseClass::PushBack(element);
}
 
 
template <typename Pointer>
void TOptPointerVector<Pointer>::InsertAt(int index, Pointer* pointer, bool releaseFlag)
{
       typename TOptDeleteAdapter<Pointer>::ElementType element;
       element.pointer = pointer;
       element.releaseFlag = releaseFlag;
 
       BaseClass::InsertElementAt(index, element);
}
 
 
} // namespace istd