Re: lua hacking wondering

["Adam D. Moss" <adam@...>]

Dimitris Papavasiliou wrote:
> This is the impression I'm under as well, but I was wondering: since 
> these entries in the metatable (the metamethods that is) are used by the 
> VM it wouldn't be too ugly to keep a number of flags with each 
> table/userdata for storing wich (of the "standard") metamethods have 
> been set in it's metatable. Then every time, say, an index operation 
> takes place all you have to do is check if the index flag is set (a very 
> cheap operation) instead of looking up the metatable and indexing it. 

Actually I think this is roughly how it's implemented in reality.

--Adam
--
Adam D. Moss   . ,,^^   adam@gimp.org   http://www.foxbox.org/   co:3