special_casts.h

 
#ifndef _aspose_system_casts_h_
#define _aspose_system_casts_h_
 
#include <system/collections/ienumerable.h>
#include <system/collections/list.h>
#include <system/object_ext.h>
#include <system/shared_ptr.h>
#include <system/weak_ptr.h>
#include <system/array.h>
 
namespace System {
 
template<class To, class From>
typename std::enable_if<!System::detail::has_method_get_Count<From>::value,
Collections::Generic::ListPtr<To>>::type CastEnumerableTo(const From& enumerable)
{
    auto result = MakeObject<Collections::Generic::List<To>>();
 
    auto enumerator = enumerable->GetEnumerator();
    while (enumerator->MoveNext())
    {
        const auto& item = ExplicitCast<To>(enumerator->get_Current());
        result->Add(item);
    }
 
    return result;
}
 
template<class To, class From>
typename std::enable_if<System::detail::has_method_get_Count<From>::value,
Collections::Generic::ListPtr<To>>::type CastEnumerableTo(const From& enumerable)
{
    auto result = MakeObject<Collections::Generic::List<To>>(enumerable->get_Count());
 
    auto enumerator = enumerable->GetEnumerator();
    while (enumerator->MoveNext())
    {
        const auto& item = ExplicitCast<To>(enumerator->get_Current());
        result->Add(item);
    }
 
    return result;
}
 
 
template<typename To, typename From>
std::enable_if_t<System::IsSmartPtr<From>::value, System::SharedPtr<System::Array<To>>>
StaticCastArray(const System::SharedPtr<System::Array<From>>& from)
{
    return ExplicitCast<System::ArrayPtr<To>>(from);
}
 
template<typename To, typename From>
std::enable_if_t<!System::IsSmartPtr<From>::value && System::IsBoxable<From>::value && std::is_same<To, System::SharedPtr<Object>>::value, System::SharedPtr<System::Array<To>>>
StaticCastArray(const System::SharedPtr<System::Array<From>>& from)
{
    return ExplicitCast<System::ArrayPtr<To>>(from);
}
 
template<class To, class From>
SharedPtr<Array<To>> DynamicCastArray(const SharedPtr<Array<From>>& from)
{
    return ExplicitCast<System::ArrayPtr<To>>(from);
}
 
} // namespace System
 
#endif // _aspose_system_casts_h_