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Date: Wed, 31 May 2017 23:35:31 +0200
To: Levi Morrison <levim@php.net>
Cc: internals <internals@lists.php.net>, Rowan Collins <rowan.collins@gmail.com>
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Subject: Re: [PHP-DEV] [RFC]Discuss] Syntax for Arrow Functions
From: ilija.tovilo@me.com

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I think it=E2=80=99s worth noting that the people most excited about arro=
w functions are probably the ones with a more functional approach.
Those kinds of side effects are usually avoided.

I also have nothing against capturing by reference. Given the last exampl=
e:

fn(=24item) =3D> =24array=5B=5D =3D =24item

All you have to do is glance a few characters to the left to see that =24=
array is not a parameter and thus must be captured. And again, since it=E2=
=80=99s pretty obvious to see if you=E2=80=99re mutating the variable (sp=
ot the equal sign) this shouldn=E2=80=99t cause too many surprises. Only =
scenario I can think of is passing it to another function as a reference.=
 But then again, no one ever complains about that in other languages.

Ilija


On 31 May 2017, 23:11 +0200, Levi Morrison <levim=40php.net>, wrote:
> > I can=E2=80=99t think of a scenario where capturing by reference woul=
d be helpful in
> > a single line closure.
>
> function(=24item) use(=24array) =7B
> return =24array=5B=5D =3D =24item;
> =7D
>
> It's actually one of the first closures I discovered in the wild when
> looking for closures that would be candidates for the short form.

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