Function lua_Integer luaL_len

3rdparty/lua/sol/sol.hpp:3780–3790

}

COMPAT53_API lua_Integer luaL_len(lua_State* L, int i) {
	lua_Integer res = 0;
	int isnum = 0;
	luaL_checkstack(L, 1, "not enough stack slots");
	lua_len(L, i);
	res = lua_tointegerx(L, -1, &isnum);
	lua_pop(L, 1);
	if (!isnum)
		luaL_error(L, "object length is not an integer");
	return res;
}

COMPAT53_API void luaL_setfuncs(lua_State* L, const luaL_Reg* l, int nup) {
	luaL_checkstack(L, nup + 1, "too many upvalues");