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Date: Thu, 1 Oct 2015 11:47:58 +0200
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To: PHP internals <internals@lists.php.net>
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Subject: Fwd: [PHP-DEV] Arrow function expressions in PHP
From: pajousek@gmail.com (=?UTF-8?Q?Pavel_Kou=C5=99il?=)

>
> How does hack solve this? Do they have backtracking in their parser?
>
> It was discussed earlier & Bob answered it, a T_LAMDA_OP is inserted
> by a token token-pre-parser before hitting the real parser, see:
>
> Subject: Re: [PHP-DEV] [RFC] [Discussion] Short Closures
> Date: Sun, 6 Sep 2015 17:59:57 -0700
> From: Sara Golemon <php@golemon.com>
> To: Bob Weinand <bobwei9@hotmail.com>
> Copy: Bj=C3=B6rn Larsson <bjorn.x.larsson@telia.com>, PHP Internals
> <internals@lists.php.net>
>
> Regards //Bj=C3=B6rn Larsson
>

(Resending, because I accidentally forgot to "Reply All".)

So, if I'm understanding this correctly - this approach wouldn't
require backtracking, and would make the simplest syntax possible?

Regards
PK