Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:83042
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain zend.com designates 209.85.160.178 as permitted sender)
MIME-Version: 1.0
In-Reply-To: <alpine.DEB.2.11.1502180850170.5941@whisky.home.derickrethans.nl>
References: <CA+9eiLsxSpbdaa7Bpci2PRXQMRkTUiwZphjQYv2iDyXLUhrMow@mail.gmail.com>
	<alpine.DEB.2.11.1502161956360.5941@whisky.home.derickrethans.nl>
	<CA+9eiLuFMy-PV9AGoch6s8wZ8AhZfXFU7MVignnfOyun8fLqpA@mail.gmail.com>
	<alpine.DEB.2.11.1502180850170.5941@whisky.home.derickrethans.nl>
Date: Wed, 18 Feb 2015 15:08:34 +0400
Message-ID: <CA+9eiLvxE363-fQma94zqG5M5g+pGv7YWwoZVjTefy11X-Favw@mail.gmail.com>
To: Derick Rethans <derick@php.net>
Cc: PHP Internals <internals@lists.php.net>, Nikita Popov <nikita.ppv@gmail.com>, 
	Guilherme Blanco <guilhermeblanco@gmail.com>, Pierrick CHARRON <pierrick@webstart.fr>, 
	Alexander Lisachenko <lisachenko.it@gmail.com>, Pierre Joye <pierre.php@gmail.com>, 
	Zeev Suraski <zeev@zend.com>, Andi Gutmans <andi@zend.com>, Joe Watkins <pthreads@pthreads.org>, 
	Yasuo Ohgaki <yohgaki@ohgaki.net>, Sebastian Bergmann <sebastian@php.net>, 
	Stanislav Malyshev <smalyshev@gmail.com>, Rasmus Lerdorf <rasmus@lerdorf.com>
Content-Type: multipart/alternative; boundary=001a11339f8a21ac35050f5ad73a
Subject: Re: [PHP-DEV] Annotations in PHP7
From: dmitry@zend.com (Dmitry Stogov)

--001a11339f8a21ac35050f5ad73a
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

On Wed, Feb 18, 2015 at 11:59 AM, Derick Rethans <derick@php.net> wrote:

> On Tue, 17 Feb 2015, Dmitry Stogov wrote:
>
> > On Mon, Feb 16, 2015 at 10:57 PM, Derick Rethans <derick@php.net> wrote=
:
> >
> > > On Mon, 16 Feb 2015, Dmitry Stogov wrote:
> > >
> > > > hi,
> > > >
> > > > During discussion of different ways of implementing "Design by
> Contract"
> > > we
> > > > got an idea of using annotations.
> > > >
> > > > BTW: annotations are useful by their own and may be used for
> different
> > > > purposes. Support for annotations was proposed long time ago:
> > > >
> > > > https://wiki.php.net/rfc/annotations
> > > > https://wiki.php.net/rfc/annotations-in-docblock
> > > > https://wiki.php.net/rfc/reflection_doccomment_annotations
> > > >
> > > > HHVM already implemented similar concept
> > > >
> > > > http://docs.hhvm.com/manual/en/hack.attributes.php
> > > >
> > > > I made a quick and dirty PoC that shows how we may implement
> annotations
> > > in
> > > > PHP7 and how powerful they may be :
> > > > https://gist.github.com/dstogov/dbf2a8f46e43719bd2c2
> > >
> > > Why didn't you pick the same syntax as hack?
> >
> > It's not smart enough to be used for DbC, AOT and many other features (=
we
> > are going to capture AST).
>
> I realize that, but:
>
> <optimization_level(2)>
>
> could easily look like:
>
> <<optimization_level(2)>>
>
> The latter syntax <<=E2=80=A6>> is what Hack does, but you picked <=E2=80=
=A6> - which
> makes it both the same as HTML/XML tags *and* different from Hack. The
> <=E2=80=A6> syntax also gets in the way of XHP
> (https://github.com/facebookarchive/xhp-php5-extension)
>
> cheers,
> Derick


I don't care about decorators.
If we come to vote I may add a separate question about <> vs <<>>

Thanks. Dmitry.

--001a11339f8a21ac35050f5ad73a--