Re: Recursive anonymous functions?

[Wim Couwenberg <debosberg@...>]

Maybe a more Lua-friendly way to write Gabor's
proposal would be the function `reflect':

function reflect(f)
	local function me(...)
		return f(me, unpack(arg))
	end
	return me
end

With this helper you can easily express recursive
functions, but you must introduce an additional first
argument:

fac = reflect(function(me, n)
	if n == 0 then
		return 1
	else
		return n*me(n - 1)
	end
end)

for i = 0, 10 do
	print(i, fac(i))
end

Of course, in this example the first thing I do is to
give the anonymous function a name, but anyway...

--
Wim




	
		
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