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Date: Thu, 24 Apr 2014 12:23:54 -0600
Message-ID: <CAFMT4Norvvm5c=n0KExnZavpp2EZuJPM6ygRs8h=76MPu76HYQ@mail.gmail.com>
To: Adam Harvey <aharvey@php.net>
Cc: "internals@lists.php.net" <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=089e0115ee7ca5fdb804f7cdf3fd
Subject: Re: [PHP-DEV] Re: Return Type Declarations
From: morrison.levi@gmail.com (Levi Morrison)

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On Thu, Apr 24, 2014 at 12:18 PM, Adam Harvey <aharvey@php.net> wrote:

> On 24 April 2014 11:15, Levi Morrison <morrison.levi@gmail.com> wrote:
> >> Levi, what's the syntax like for closures with use blocks? I can see
> >> that looking a bit weird either way, since it's presumably either:
> >>
> >> function ($foo): Bar use ($quux) {}
> >>
> >> or:
> >>
> >> function ($foo) use ($quux): Bar {}
> >>
> >> Neither are exactly ideal, but that's the hand we've dealt ourselves, =
I
> >> guess.
> >
> >
> > I believe it is the latter: function ($foo) use ($quux): Bar {}
> >
> > I'll check with Joe Watkins. Do you have a case for one being superior =
to
> > the other?
>
> Not really =E2=80=94 I think I prefer that one slightly, but they both re=
quire
> a moment to parse. On the bright side, I don't see a lot of people
> using return type declarations with closures.


If we ever support type hints like `function array_sort(array &$array,
callable($a, $b): int $callback)` then I can see us using type declarations
with closures. Maybe.

So in summary: after the use statement is visually a bit better. Perhaps
someone will think of one reason to do the former but I'll just plan on
documenting it as the latter option.

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