Re: keys in tables

[Romulo Bahiense <romulo@...>]

Gavin Wraith wrote:
> Somebody must have asked this before! Is there anybody
> who can claim to have written a Lua program that uses
> a table whose keys are neither numbers nor strings,
> and for which this feature is essential?

Perhaps Lua's Registry itself, when registering metatables and any other 
resource? I know that there might be work-arounds, but I think none of 
them are as fast as it is now, specially because you would have to hash 
objects from/to string/number to be used as table keys.

I can't imagine myself without this feature (table keys as any non-nil 
value), nowadays :)