Re: Varargs efficiency

[Jorge <xxopxe@...>]

On 04/18/2015 02:45 PM, Hisham wrote:
> > > I would doubt that using varargs as a Forth stack is the best approach.
> > > What’s wrong with a Lua array (aka table)?
> >
> > Lua arrays can't do nil, Lua stacks can.
>
> If you're already writing a VM to a different language, you can just
> map your Forth's nil to a non-nil Lua singleton.

I'm on the same camp: null-like values that have a meaning in your 
business logic are not Lua nil. Nil is a language thing, not 
"something". If your applications has a value that can be stored and is 
guaranteed to exist only once then is a singleton, something like

NULL = {}  --accesible globally


Jorge