readonly ======== Routine to mark a member variable as read-only ---------------------------------------------- .. code-block:: cpp template auto readonly( T&& value ); The goal of read-only is to protect a variable set on a usertype or a function. Simply wrap it around a member variable, e.g. ``sol::readonly( &my_class::my_member_variable )`` in the appropriate place to use it. If someone tries to set it, it will throw an error.