Function bind_unknown

modules/engine/lua/src/build.skr_lua.cpp:234–272

    ((skr::SObjectPtr<skr::SInterface>*)((char*)p + sizeof(void*)))->reset();
}
void bind_unknown(lua_State* L)
{
    luaL_Reg metamethods[] = {
        { "__eq", [](lua_State* L) -> int {
            void* a = *(void**)lua_touserdata(L, 1);
            void* b = *(void**)lua_touserdata(L, 2);
            lua_pushboolean(L, a == b);
            return 1;
        } },
        { nullptr, nullptr }
    };
    luaL_newmetatable(L, "skr_opaque_t");
    luaL_register(L, nullptr, metamethods);
    lua_pop(L, 1);
    luaL_Reg uniquemetamethods[] = {
        metamethods[0],
        metamethods[1],
        { nullptr, nullptr }
    };
    luaL_newmetatable(L, "[unique]skr_opaque_t");
    luaL_register(L, nullptr, uniquemetamethods);
    lua_pop(L, 1);
    luaL_Reg sharedmetamethods[] = {
        metamethods[0],
        metamethods[1],
        { nullptr, nullptr }
    };
    luaL_newmetatable(L, "[shared]skr_opaque_t");
    luaL_register(L, nullptr, sharedmetamethods);
    lua_pop(L, 1);
    luaL_Reg objectmetamethods[] = {
        metamethods[0],
        metamethods[1],
        { nullptr, nullptr }
    };
    luaL_newmetatable(L, "[object]skr_opaque_t");
    luaL_register(L, nullptr, objectmetamethods);
    lua_pop(L, 1);
}

void skr_lua_close(lua_State* L)
{