File: as.hpp

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#ifndef RFL_AS_HPP_
#define RFL_AS_HPP_

#include "from_named_tuple.hpp"
#include "make_named_tuple.hpp"
#include "to_named_tuple.hpp"

namespace rfl {

/// Generates a type T from the input values.
template <class T, class Head, class... Tail>
T as(Head&& _head, Tail&&... _tail) {
    if constexpr (sizeof...(_tail) == 0) {
        return from_named_tuple<T>(to_named_tuple(std::forward<Head>(_head)));
    } else {
        return from_named_tuple<T>(
            to_named_tuple(std::forward<Head>(_head))
                .add(to_named_tuple(std::forward<Tail>(_tail))...));
    }
}

/// Generates a type T from the input values.
template <class T, class Head, class... Tail>
T as(const Head& _head, const Tail&... _tail) {
    if constexpr (sizeof...(_tail) == 0) {
        return from_named_tuple<T>(to_named_tuple(_head));
    } else {
        return from_named_tuple<T>(
            to_named_tuple(_head).add(to_named_tuple(_tail)...));
    }
}

}  // namespace rfl

#endif