Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:104694
Message-ID: <C6AF960D-880D-44C3-BB9B-1F42CDB8D6C9@benramsey.com>
Content-Type: multipart/signed;
	boundary="Apple-Mail=_9BB9138C-409F-4867-9AA5-6A0733201E8A";
	protocol="application/pgp-signature";
	micalg=pgp-sha256
Mime-Version: 1.0 (Mac OS X Mail 12.2 \(3445.102.3\))
Date: Wed, 13 Mar 2019 14:36:07 -0500
In-Reply-To: <CAF+90c9YZcrquGfS4h3x1a+codkCFLarAThsOXcN69RCTvbAFA@mail.gmail.com>
Cc: PHP internals <internals@lists.php.net>
To: Nikita Popov <nikita.ppv@gmail.com>
References: <CAF+90c9YZcrquGfS4h3x1a+codkCFLarAThsOXcN69RCTvbAFA@mail.gmail.com>
Subject: Re: [PHP-DEV] [RFC] Arrow functions / short closures
From: ben@benramsey.com (Ben Ramsey)

--Apple-Mail=_9BB9138C-409F-4867-9AA5-6A0733201E8A
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=us-ascii

> On Mar 13, 2019, at 10:56, Nikita Popov <nikita.ppv@gmail.com> wrote:
>=20
> Hi internals,
>=20
> Motivated by the recent list comprehensions RFC, I think it's time we =
took
> another look at short closures:
>=20
> https://wiki.php.net/rfc/arrow_functions_v2
>=20
> This is based on a previous (withdrawn) proposal by Levi & Bob. It =
uses the
> syntax
>=20
>    fn($x) =3D> $x * $multiplier
>=20
> and implicit by-value variable binding. This example is roughly =
equivalent
> to:
>=20
>    function($x) use($multiplier) { return $x * $multiplier; }
>=20
> The RFC contains a detailed discussion of syntax choices and binding =
modes.


Has the use of `f` as a leading symbol been considered and discussed? =
For example:

    f($x) =3D> $x * $multiplier


Cheers,
Ben


--Apple-Mail=_9BB9138C-409F-4867-9AA5-6A0733201E8A
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename=signature.asc
Content-Type: application/pgp-signature;
	name=signature.asc
Content-Description: Message signed with OpenPGP

-----BEGIN PGP SIGNATURE-----

iHUEAREIAB0WIQToXQMR3fpbrPOmEOewLZeYnIwHGwUCXIlbpwAKCRCwLZeYnIwH
G+ntAPoCq6AD61xV0RTUfT38naAasVt1FYOQcZr1V5+rbasKHgD/bfffmiuZxNlj
6xXVmYT+2Q6ZY0FIS7EfVnoeQkacjFQ=
=7uLE
-----END PGP SIGNATURE-----

--Apple-Mail=_9BB9138C-409F-4867-9AA5-6A0733201E8A--