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Postings from August 2013
On 01.08.2013 01:35, Ricardo SIGNES via RT wrote:
> On Tue Jul 30 16:05:09 2013, sprout wrote:
>> In short: closures close over variables, not lexical scopes, unless
>> string eval is involved. (So one can work around this by including eval
>> "" in the sub.)
>
> When did this become true in practice?
>
> It does not match up with what I take to be common definition of closures as enclosing a
> complete environment. I agree that PadWalker is letting Perl programmers go beyond the realm
> of polite behavior, but let's put that aside.
Heh. I never think about "complete environments" or anything like that.
My mental model works with variables only ("function X closes over
variables A and B"). I'm surprised to learn the common definition works
differently.
Just my 2 cents
--
Lukas Mai <plokinom@gmail.com>
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