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Date: Tue, 31 Jan 2017 13:03:37 +0000
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To: Nicolas Grekas <nicolas.grekas+php@gmail.com>
Cc: PHP Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=001a114a7f8a103c0305476390fd
Subject: Re: [PHP-DEV] [RFC][Discuss] Arrow Functions
From: me@kelunik.com (Niklas Keller)

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Content-Type: text/plain; charset=UTF-8

Nicolas Grekas <nicolas.grekas+php@gmail.com> schrieb am Di., 31. Jan.
2017, 13:45:

> >
> > As noted in the RFC,  this isn't possible due to ambiguities with array
> > keys and yield expressions with keys.
> >
>
> There are not ambiguities technically, so it is possible if we want to:
>
> $a = [
>     $y => 'b',
>     ($x) => $x + 1, // key, value pair
> ];
>
> $a = [
>     $y => 'b',
>    (($x) => $x + 1), // closure
> ];
>

Well, it is ambiguous. Your solution just arbitrarily resolves it to one of
them.

But as far as I know there are more problems like supporting types that
make it quite complicated with that syntax.

Regards, Niklas

>

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