Vulkan-Hpp/snippets/ObjectFree.hpp

  template <typename OwnerType, typename Dispatch>
  class ObjectFree
  {
  public:
    ObjectFree() = default;

    ObjectFree( OwnerType                                               owner,
                Optional<const AllocationCallbacks> allocationCallbacks VULKAN_HPP_DEFAULT_ARGUMENT_NULLPTR_ASSIGNMENT,
                Dispatch const & dispatch VULKAN_HPP_DEFAULT_DISPATCHER_ASSIGNMENT ) VULKAN_HPP_NOEXCEPT
      : m_owner( owner )
      , m_allocationCallbacks( allocationCallbacks )
      , m_dispatch( &dispatch )
    {}

    OwnerType getOwner() const VULKAN_HPP_NOEXCEPT
    {
      return m_owner;
    }

    Optional<const AllocationCallbacks> getAllocator() const VULKAN_HPP_NOEXCEPT
    {
      return m_allocationCallbacks;
    }

    Dispatch const & getDispatch() const VULKAN_HPP_NOEXCEPT
    {
      return *m_dispatch;
    }

  protected:
    template <typename T>
    void destroy( T t ) VULKAN_HPP_NOEXCEPT
    {
      VULKAN_HPP_ASSERT( m_owner && m_dispatch );
      ( m_owner.free )( t, m_allocationCallbacks, *m_dispatch );
    }

  private:
    OwnerType                           m_owner               = {};
    Optional<const AllocationCallbacks> m_allocationCallbacks = nullptr;
    Dispatch const *                    m_dispatch            = nullptr;
  };