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Date: Fri, 3 Jan 2014 14:43:59 -0500
Message-ID: <CAFp73XsVkz4z=JQtVfasa8X0HpQiktZnfTd7N6JgybcWqn-YeA@mail.gmail.com>
To: Sara Golemon <pollita@php.net>
Cc: Levi Morrison <morrison.levi@gmail.com>, Andrea Faulds <ajf@ajf.me>, 
	Pierre Joye <pierre.php@gmail.com>, zhifeng hu <zf@ancientrocklab.com>, 
	PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=001a11c30946d3c01c04ef16220d
Subject: Re: [PHP-DEV] Is it possible introduce HHVM into PHP kernel tree?
From: guilhermeblanco@gmail.com ("guilhermeblanco@gmail.com")

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I would be very happy with this decision, but I have some concerns too.
Will detail each one

- CLA

As Pierre mentioned

- Existing extension (read as PECL) support

There're a lot of existing PECL extensions, that are tied to ZE.
While it would be a collective effort to migrate existing ones to HHVM, it
would be a huge effort for everyone, not only core.
I foresee a lot of discrepancies during this transition. Like possible BC
breaks, such as some I've seen with thread (HHVM) support compared to
pthreads (PHP).

If HHVM was able to provide a wrapper support for ZE API, that would
simplify a lot of work around existing PECL extensions and 3rd party
contributors.

- Code organization

After some time around php internals, you get used to its structure and
where everything is implemented/organized.
I am trying to regularly contribute to HHVM and keep my tools compatible. I
find myself relying on search most of the time to find where things are. =\
It may be my lack of experience, but that's what I personally feel.

- Compatibility

A lot of effort is needed to get everything compatible, up and running.
This requires more and more effort.


Cheers,



On Fri, Jan 3, 2014 at 2:30 PM, Sara Golemon <pollita@php.net> wrote:

> >> 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.
> >>
> > 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.
> >
> Scratch that, the fix was committed last week.   Drew just forgot to
> add "Closes #1363" to his commit message.
>
>
> https://github.com/facebook/hhvm/commit/06f4711821b1db0a2ef9ac56ec2186bcb0049651#diff-ede14f13ebae67ee268413ed558d1acf
>
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>


-- 
Guilherme Blanco
MSN: guilhermeblanco@hotmail.com
GTalk: guilhermeblanco
Toronto - ON/Canada

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