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Date: Fri, 3 Jan 2014 11:25:54 -0800
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To: Levi Morrison <morrison.levi@gmail.com>
Cc: Andrea Faulds <ajf@ajf.me>, Pierre Joye <pierre.php@gmail.com>, zhifeng hu <zf@ancientrocklab.com>, 
	PHP internals <internals@lists.php.net>
Content-Type: text/plain; charset=ISO-8859-1
Subject: Re: [PHP-DEV] Is it possible introduce HHVM into PHP kernel tree?
From: pollita@php.net (Sara Golemon)

>> Syntax: Yes, HHVM is an equivalent engine.*
>> Runtime Library: This is the big gap.  PHP has a bunch of bundled
>> extensions and a massive library of PECL extensions.  Since the
>> extension API is very different, each extension has to be
>> reimplemented, and not all of them have been.
>
> Unless some commits have been merged that I am not aware of, you still can't
> use callable type-hints (https://github.com/facebook/hhvm/issues/1363).
> While I can't imagine it is difficult for HHVM to finish support for the
> callable type-hint, it does show an example of a major compatibility issue
> as your code will not run at all.
>
> My opinion: it's not stable enough... yet.
>
For the record, I agree.  I think this whole thread is at least a year
early, if not two.  With all due respect to the OP, calling for a
merge of PHP and HHVM at this time shows a lack of understanding about
the full breadth and reach of PHP, and the fact that HHVM is a
complete reimplementation of the language and runtime.

-Sara

P.S. - FWIW, the fix for that bug (hate to play semantics, but it's a
bug, not a parity gap) is on its way out.  Basically just been delayed
by the holidays.