case_2.h

//
// Created by belov on 14.07.2026.
//

#pragma once


namespace case_2 {
    struct Data {
        std::string_view name;
        std::uint16_t age;
        bool busy;
    };

    void case_2() {
        constexpr auto ctx = std::meta::access_context::current();
        static constexpr auto members = std::define_static_array(std::meta::nonstatic_data_members_of(^^Data, ctx));

        std::array<std::string_view, members.size()> names;

        auto equal = []<typename T>(const T& a,const T& b) constexpr -> bool {
            constexpr auto ctx = std::meta::access_context::current();
            template for (constexpr auto m : std::define_static_array(std::meta::nonstatic_data_members_of(^^T, ctx))) {
                if (a.[:m:] != b.[:m:])
                    return false;
            }
            return true;
        };

        Data d{.name="Ivan", .age=17, .busy=false};

        std::size_t i = 0;
        template for (constexpr auto m : members) {
            names[i++] = std::meta::identifier_of(m);
        }

        constexpr auto check1 = std::array<std::string_view, 3>{"name", "age", "busy"};
        assert(names == check1);

        constexpr auto check2 = std::array<std::string_view, 3>{"name", "age1", "busy"};
        assert(names != check2);
    }
}