Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:87189
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.212.176 as permitted sender)
User-Agent: K-9 Mail for Android
In-Reply-To: <CAFMT4NqN2M1iDd+x4LrtaisZdsffN9YGScazk0e-JG1xGNq8PQ@mail.gmail.com>
References: <CAHMUw2GiRT6OFvrRiuCiikHF_tLu316wN9VG_pQ7vTXcXtJ40w@mail.gmail.com> <1436967838.8300.16.camel@kuechenschabe> <CAMUwpuQ5uCnic9PQTrzdg1=FLd_pthfuL_av49awtY7MYsER4A@mail.gmail.com> <CAFMT4NqN2M1iDd+x4LrtaisZdsffN9YGScazk0e-JG1xGNq8PQ@mail.gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain;
 charset=UTF-8
Date: Wed, 15 Jul 2015 20:53:23 +0100
To: Levi Morrison <levim@php.net>,Julien Pauli <jpauli@php.net>
CC: PHP Internals <internals@lists.php.net>
Message-ID: <47DA8928-322C-4869-809F-BABDCA20FFB5@gmail.com>
Subject: Re: [PHP-DEV] Consolidation of Traversable and array operations
From: rowan.collins@gmail.com (Rowan Collins)

On 15 July 2015 20:39:05 GMT+01:00, Levi Morrison <levim@php.net> wrote:
>Do note that the union types RFC would also alleviate some of this
>pain for user-land functions, since `array | Traversable` would cover
>the required access pattern. I think this is a superior approach
>myself, but I may be a bit biased as I am authoring that proposal:
>https://wiki.php.net/rfc/union_types

I like the idea of union types in general, but have always felt that a typehint of Traversable should accept arrays as a matter of course. The only thing such a typehint guarantees is that foreach will work (there are no methods defined that can be called directly), and an array meets that condition. The only difference I can see is in the passing / mutability behaviour of objects vs non-objects.

Regards,
-- 
Rowan Collins
[IMSoP]