Re: Forward function declarations - relocal command
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- Subject: Re: Forward function declarations - relocal command
- From: Michal Kolodziejczyk <miko@...>
- Date: 2012年11月21日 01:38:29 +0100
On 21.11.2012 01:15, Robert Virding wrote:
> Sorry I don't WHY there is a problem. I assume I would get the same effect with a recursive function. So
>
> local f
> local f = function () <ref to f> end
>
> doesn't work but the following doesn't
>
> local f
> f = function () <ref to f> end
>
> The second one is from the 5.2 manual as the expansion for
>
> local function f () <ref to f> end
>
> Why is it like that? Does it need to be like that? Have I missed something in the manual? Or is it just an implementation detail?
Because "local" creates a new local. Try this to see the difference:
local f=1
do
print(f)
local f=2 -- creating another local variable
print(f)
end
print(f)
local g=1
do
print(g)
g=2 -- (re)using a local variable
print(g)
end
print(g)
Regards,
miko