Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:54350
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: error (pb1.pair.com: domain schlueters.de from 217.114.211.66 cause and error)
To: Ryan McCue <lists@rotorised.com>
Cc: Lazare Inepologlou <linepogl@gmail.com>, Rasmus Lerdorf
 <rasmus@lerdorf.com>,  internals@lists.php.net
In-Reply-To: <4E3A8014.1030503@rotorised.com>
References:
	 <CAMyk_AZQ8cJ+iVZ=9x76kYCi4n5_FYyAg9JQQnL_BJhBUX6cCg@mail.gmail.com>
	 <4E3A48F2.4000503@lerdorf.com>
	 <CAMyk_AYxuK=o1s-HD7MGjV8u8KLksxgUfrvsx0qZdTO1MEuqJw@mail.gmail.com>
	 <4E3A8014.1030503@rotorised.com>
Content-Type: text/plain; charset="UTF-8"
Date: Thu, 04 Aug 2011 13:39:35 +0200
Message-ID: <1312457975.1541.7.camel@guybrush>
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: Re: [PHP-DEV] An implementation of a short syntax for closures
From: johannes@schlueters.de (Johannes =?ISO-8859-1?Q?Schl=FCter?=)

On Thu, 2011-08-04 at 21:18 +1000, Ryan McCue wrote:
> Lazare Inepologlou wrote:
> > Thank you for your interest. This is just a proposal that I have tested and
> > works. Of course, the final syntax can be different. Syntax is always a
> > matter of taste :-)
> 
> As much as I love the idea, I have to agree that using | doesn't really
> make sense here and actually makes the readability worse, IMO. However,
> I can't really think of a better operator. ( $x ) => $x + 1 for example
> would be ambiguous if used in an array definition, but is otherwise the
> best in terms of readability.

If you go there you can also allow more complex statements and re-use
symbols used to group statements, using a syntax like

     ( $x ) { $x + 1; }

Oh wait - now we've reached a point which was mentioned in this thread
already "allow to drop the function keyword".

Back when I proposed to drop "function" a key argument was that people
wanted an easy way to grep for function declarations. I accepted the
validity of that concern and think this might be a case here, too. The
difference of these few characters is not that much but the keyword
gives a clear guidance what's going on, else you might end up with a
long list of random characters next to each other ...

johannes