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Date: Thu, 14 Mar 2019 01:01:54 -0300
Message-ID: <CAEsg9X0KD4F-CdK7WwjG6JXhmqauKBaie799F+Nkqp7iTwjidA@mail.gmail.com>
To: Nikita Popov <nikita.ppv@gmail.com>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] Arrow functions / short closures
From: david.proweb@gmail.com (David Rodrigues)

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I have two doubts about the RFC:

1. Your example with "($x) =3D> $x" consider the use of "$x =3D> $x", but n=
ot
specifically "($x) =3D> $x". I mean: maybe it can accept "($x) =3D> $x" but=
 not
"$x =3D> $x" because of the array conflict (as mentioned), and with that we
avoid to create a new keyword "fn". So parentheses is required.

2. I don't remember. haha

Em qua, 13 de mar de 2019 =C3=A0s 12:57, Nikita Popov <nikita.ppv@gmail.com=
>
escreveu:

> Hi internals,
>
> Motivated by the recent list comprehensions RFC, I think it's time we too=
k
> another look at short closures:
>
> https://wiki.php.net/rfc/arrow_functions_v2
>
> This is based on a previous (withdrawn) proposal by Levi & Bob. It uses t=
he
> syntax
>
>     fn($x) =3D> $x * $multiplier
>
> and implicit by-value variable binding. This example is roughly equivalen=
t
> to:
>
>     function($x) use($multiplier) { return $x * $multiplier; }
>
> The RFC contains a detailed discussion of syntax choices and binding mode=
s.
>
> Regards,
> Nikita
>


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David Rodrigues

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