module.hpp

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#pragma once
#include <welder/rods/lua/sol2/rod.hpp>
#include <welder/module.hpp> // the backend-agnostic WELDER_MODULE dispatch

#ifndef WELDER_DETAIL_LUAOPEN_EXPORT
#  if defined(_WIN32)
#    define WELDER_DETAIL_LUAOPEN_EXPORT __declspec(dllexport)
#  else
#    define WELDER_DETAIL_LUAOPEN_EXPORT __attribute__((visibility("default")))
#  endif
#endif

#define WELDER_DETAIL_MODULE_ENTRY_sol2(ns, ...)                                  \
    static void welder_glue_##ns##_sol2(::sol::table&);                           \
    extern "C" WELDER_DETAIL_LUAOPEN_EXPORT int luaopen_##ns(                     \
        lua_State* welder_lua_state_) {                                           \
        ::sol::state_view welder_lua_{welder_lua_state_};                         \
        ::sol::table welder_module_var_{welder_lua_.create_table()};             \
        using welder_weld_ = ::welder::detail::module_welder_t<                   \
            ::welder::welder<::welder::rods::sol2::rod>                           \
                __VA_OPT__(, ) __VA_ARGS__>;                                      \
        static_assert(                                                            \
            ::std::is_same_v<typename welder_weld_::module_type, ::sol::table>,   \
            "WELDER_MODULE(ns, sol2, W): W must be a welder::welder over a rod "  \
            "whose module handle is sol::table");                                 \
        welder_weld_::weld_module<^^ns>(                                          \
            welder_module_var_, welder_weld_::noop,                               \
            [](::sol::table& welder_glue_m_) {                                    \
                welder_glue_##ns##_sol2(welder_glue_m_);                          \
            });                                                                   \
        return ::sol::stack::push(welder_lua_state_, welder_module_var_);         \
    }                                                                             \
    static void welder_glue_##ns##_sol2(::sol::table& module)