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To: php-internals <internals@lists.php.net>,
 =?UTF-8?Q?Bj=c3=b6rn_Larsson?= <bjorn.x.larsson@telia.com>
Message-ID: <ca6f11d0-5da3-757c-7acd-4acd79a876f1@fleshgrinder.com>
Date: Thu, 15 Jun 2017 15:34:03 +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>,
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Subject: Re: [PHP-DEV] [RFC]Discuss] Syntax for Arrow Functions
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On 6/15/2017 3:29 PM, Bj=C3=B6rn Larsson wrote:
> Seems like the constraints on this feature makes it hard to fly, i.e.
> 1. Not a hackish implementation
> 2. Non ambiguous syntax
> 3. Easy to parse & use syntax for the human
>=20
> HackLang then prioritised 2 & 3 making the end-users happy, but
> had to sacrifise a clean implementation. Any clue if this was a one-
> time effort once it was done or something with a lot of drawbacks
> in terms of maintenance, performance, evolution etc?
>=20
> r//Bj=C3=B6rn
>=20

On Reddit someone proposed the following syntax:

    \() =3D> echo 'Hello, World'

It is used by Haskell if I remember correctly and should not be
ambiguous since `(` is not allowed in names of classes or functions. It
actually aligns well with functions that are called with a
fully-qualified name (e.g. `\printf('')`).

Not sure if it would still require hacks though.

--=20
Richard "Fleshgrinder" Fussenegger


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