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To: php-internals <internals@lists.php.net>,
 Rasmus Schultz <rasmus@mindplay.dk>
Message-ID: <40dc6de9-7e05-e043-e8e3-9e93409be2bd@fleshgrinder.com>
Date: Thu, 8 Jun 2017 17:56:53 +0200
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Subject: Re: [PHP-DEV] [RFC]Discuss] Syntax for Arrow Functions
From: php@fleshgrinder.com (Fleshgrinder)

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From: Fleshgrinder <php@fleshgrinder.com>
To: php-internals <internals@lists.php.net>,
 Rasmus Schultz <rasmus@mindplay.dk>
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Subject: Re: [PHP-DEV] [RFC]Discuss] Syntax for Arrow Functions
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On 6/7/2017 9:45 PM, Rasmus Schultz wrote:
>> the `fn($a, $b) =3D> $a + $b ** $c` syntax suddenly becomes an accepta=
ble
> compromise.
>=20
> I have to second that.
>=20
> I might even propose to shorten it from "fn" to just "f" - the resultin=
g
> syntax then resembles a mathematical predicate :-)
>=20

I really like your thinking here. +1 for just `f`.

I am not sure why we would require the fat arrow anymore. We most
probably want some symbol there to separate the return type constraint
from the body, but it could be a single symbol instead of two:

    f($x) =3D $x^3
    f(int $x): int =3D $x^3

We could go full math here! :)

--=20
Richard "Fleshgrinder" Fussenegger


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