decl_name.hpp

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#ifndef EAGINE_REFLECT_DECL_NAME_HPP
#define EAGINE_REFLECT_DECL_NAME_HPP
 
#include "../memory/span_algo.hpp"
#include "../string_span.hpp"
 
namespace eagine {
//------------------------------------------------------------------------------
struct decl_name : string_view {
    static constexpr const span_size_t max_length = 80;
 
    constexpr decl_name() noexcept = default;
 
    template <
      std::size_t N,
      typename = std::enable_if_t<(N <= span_size_t(max_length))>>
    constexpr decl_name(const char (&array)[N]) noexcept
      : string_view{array} {}
};
//------------------------------------------------------------------------------
class decl_name_storage {
public:
    static constexpr const span_size_t max_length = decl_name::max_length;
 
    auto assign(string_view str) -> bool {
        if(str.size() <= max_length) {
            memory::copy(str, cover(_storage));
            _length = str.size();
            return true;
        }
        return false;
    }
 
    auto get() noexcept {
        return head(cover(_storage), _length);
    }
 
    auto get() const noexcept {
        return head(view(_storage), _length);
    }
 
private:
    std::array<char, max_length> _storage{};
    span_size_t _length{0};
};
//------------------------------------------------------------------------------
} // namespace eagine
 
#endif // EAGINE_REFLECT_DECL_NAME_HPP