Re: "Hidden" data in Lua objects

["Peter Sommerfeld" <peter@...>]

Marc Balmer wrote:
> Now I want to somehow store C data in these objects, or link them with
> such information.
>
> E.g. I have to store the Widget pointer (a C lightuserdata value) for
> each widget represented in the hierarchy.
>
> What is a good way to do this?  My adventourous approach at the moment
> is to create an additional table when an object is created, store my
> values in this additional table and add it as metatable to the created
> object...

You may hide the objects in closures. No way to access the object.

http://lua-users.org/wiki/ObjectOrientationClosureApproach

HTH

Peter