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To: PHP internals <internals@lists.php.net>, Nikita Popov
 <nikita.ppv@gmail.com>
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Message-ID: <20190314140356.Horde.DRHws4diCrCqDCSv6NgOSdD@cloud.rochette.cc>
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Date: Thu, 14 Mar 2019 14:03:56 +0000
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Subject: Re: [PHP-DEV] [RFC] Arrow functions / short closures
From: mathieu@rochette.cc (Mathieu Rochette)
References: <CAF+90c9YZcrquGfS4h3x1a+codkCFLarAThsOXcN69RCTvbAFA@mail.gmail.com>


Hi,

it's nice to see this going on again :)

while reading the rfc I was wondering, why do we need the "static" keyword, couldn't static function be detected automatically ? 

I guess this apply to the existing closure syntax as well so to get more on this topic I'll share my preferences on the syntax: I like the ==> or ~> version because it also allow to drop the parenthesis when there is only one argument and it's closer to what I'm used to in javascript

I wouldn't mind having the rust syntax too but yeah, it would feel a bit odd in PHP


thank you for your work on this !

Nikita Popov – Wed, 13. March 2019 16:57
> Hi internals,
> 
> Motivated by the recent list comprehensions RFC, I think it's time we took
> another look at short closures:
> 
> wiki.php.net/rfc/arrow_functions_v2
> 
> This is based on a previous (withdrawn) proposal by Levi & Bob. It uses the
> syntax
> 
> fn($x) => $x * $multiplier
> 
> and implicit by-value variable binding. This example is roughly equivalent
> to:
> 
> function($x) use($multiplier) { return $x * $multiplier; }
> 
> The RFC contains a detailed discussion of syntax choices and binding modes.
> 
> Regards,
> Nikita