#pragma once

#if !defined(MIJIN_UTIL_VARIANT_HPP_INCLUDED)
#define MIJIN_UTIL_VARIANT_HPP_INCLUDED 1

#include <utility>
#include <variant>
#include "./traits.hpp"

namespace mijin
{

//
// public traits
//

template<typename TSearch, typename TVariant>
inline constexpr bool variant_contains_v = false;

template<typename TSearch, typename... TVariantTypes>
inline constexpr bool variant_contains_v<TSearch, std::variant<TVariantTypes...>> = mijin::is_any_type_v<TSearch, TVariantTypes...>;

//
// public types
//

template<typename... TCallable>
struct Visitor : TCallable ...
{
    using TCallable::operator()...;
};

template<typename TRet>
struct CastTo
{
    template<typename T>
    TRet operator()(T&& arg) const
    {
        return static_cast<TRet>(std::forward<T>(arg));
    }
};
}
#endif // !defined(MIJIN_UTIL_VARIANT_HPP_INCLUDED)