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Date: Fri, 8 Jun 2018 11:22:24 +0200
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To: Rowan Collins <rowan.collins@gmail.com>
Cc: Ryan Jentzsch <ryan.jentzsch@gmail.com>, PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Better types without runtime checking
From: nikita.ppv@gmail.com (Nikita Popov)

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On Fri, Jun 8, 2018 at 10:50 AM, Rowan Collins <rowan.collins@gmail.com>
wrote:

> On 8 June 2018 at 08:29, Ryan Jentzsch <ryan.jentzsch@gmail.com> wrote:
>
> > Also, can anyone in internals respond to this inquiry?
> https://github.com/
> > php/php-src/pull/1797#issuecomment-394434391
> >
>
> For ease of reference, that comment says:
>
> > Is there a document somewhere that summarizes the reasons why this
> proposal was rejected? Have any of the items been addressed since then?
>
> I would be happy to be proved wrong, but I think the answer is almost
> certainly "no, but feel free to write one". Documentation is notoriously
> the thing that gets put off most easily, and documentation *of a
> discussion* is just not going to be at the top of anyone's todo list. But,
> all the discussions are public - on that PR thread, and on the discussion
> of the RFC on this list (available through any of several archives) - so
> theoretically anyone could go through and summarise the key points.
>
> I know that's not what you want to hear, but it's just human nature - we
> had the discussion, reached a conclusion, and moved on with the next topic.
>

From what I remember, the key points were:
 * No support for types on static properties.
 * No support for taking references to typed properties.
 * Performance: Feature was not *entirely* free if not used.

FTR, Bob and me plan to bring this RFC back up for PHP 7.3 soon, with
support for static properties and for references. A mostly finished
implementation has been lying around for a while already, so we think it's
time to wrap this up and give it another try.

Nikita

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