OO programming with Lua

["Vincent Lascaux" <vincent.lascaux@...>]

 Hello,

 I'm new to Lua (since yesterday), so dont blame me if I say silly  things
;)  I know that I can use operator ':' to make the script look like object
oriented. X:A() is replaced by X.A(X).  I want to export C++ object, and
with this idiom, X must have a large table  to store every functions. I
think this could be a performance problem when  using a lot of variable of
the same type as X. Is there a way to make this  work with only one large
table ?

  For example, I'd like to define a new operator (I dont know if this is
 possible) '->' that would replace X->A() by functions[X.type].A(X), where
functions is a table containing a table for each type. So functions[X.type]
would be the table containing every functions associated with X.type (I
assume that I can assign to each variable a "type" value that identificate
its type).

 Thanks
 -- 
 Vincent