Re: local pre-declarations

[Asko Kauppi <asko.kauppi@...>]

Now, that's fancy.. :)   Thanks, I'll give it a go.

Other ideas I've come to think of:

	local upfunc= {}

	local function f
		...
		upfunc.g()
	end

	local function g
		...
	end
	upfunc.g= g

..but this is not at all so elegant.

-ak


1.9.2004 kello 16:02, Gabor Grothendieck kirjoitti:

>  If the objective here is to get rid of the declaration then the 
> utility
> function Recall defined in the first line below would allow you to do 
> it.
> It calls the function n levels up on the stack so if f calls g and
> g which calls Recall(2) then Recall(2) returns the function f.
>
> Recall = function(n) return debug.getinfo((n or 1)+1,"f").func end
> local g = function(x)
>    if (x > 0) then return x + Recall(2)(x-1) else return 0 end end
> local f = function(x)
>    if (x > 0) then return x + g(x-1) else return 0 end end
> print(f(3))