utils_variant.hpp

#ifndef LXGUI_UTILS_VARIANT_HPP
#define LXGUI_UTILS_VARIANT_HPP
 
#include "lxgui/lxgui.hpp"
#include "lxgui/utils.hpp"
 
#include <string>
#include <type_traits>
#include <utility>
#include <variant>
 
namespace lxgui::utils {
 
struct empty {};
 
using variant = std::variant<
    empty,
    bool,
    std::int64_t,
    std::int32_t,
    std::int16_t,
    std::int8_t,
    std::uint64_t,
    std::uint32_t,
    std::uint16_t,
    std::uint8_t,
    double,
    float,
    std::string>;
 
template<typename T>
T& get(variant& value) {
    if constexpr (std::is_enum_v<T>)
        return reinterpret_cast<T&>(std::get<std::underlying_type_t<T>>(value));
    else
        return std::get<T>(value);
}
 
template<typename T>
const T& get(const variant& value) {
    if constexpr (std::is_enum_v<T>)
        return reinterpret_cast<const T&>(std::get<std::underlying_type_t<T>>(value));
    else
        return std::get<T>(value);
}
 
} // namespace lxgui::utils
 
#endif