reference.hpp

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#pragma once
 
#include <nui/frontend/dom/basic_element.hpp>
 
#include <concepts>
#include <functional>
#include <memory>
#include <type_traits>
 
namespace Nui::Dom
{
    template <typename T>
    struct ReferencePasser
    {
      public:
        explicit ReferencePasser(T&& func)
            : func_{std::move(func)}
        {}
        void operator()(std::weak_ptr<BasicElement>&& weakElement) const
        {
            func_(std::move(weakElement));
        }
 
      private:
        std::function<void(std::weak_ptr<BasicElement>&&)> func_;
    };
 
    namespace Detail
    {
        template <typename T>
        struct IsReferencePasser : std::false_type
        {};
        template <typename T>
        struct IsReferencePasser<ReferencePasser<T>> : std::true_type
        {};
    }
 
    template <typename T>
    concept IsNotReferencePasser = !Detail::IsReferencePasser<T>::value;
    template <typename T>
    concept IsReferencePasser = Detail::IsReferencePasser<T>::value;
}