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Date: Mon, 16 Feb 2015 15:32:35 +0400
Message-ID: <CA+9eiLv4z_kH+eNhNu59zhd=oun-QZAH+Cd8EgySKL3C5FFAsg@mail.gmail.com>
To: Cesar Rodas <cesar@rodas.me>
Cc: PHP Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=089e0162832655039e050f32f141
Subject: Re: [PHP-DEV] Re: Annotations in PHP7
From: dmitry@zend.com (Dmitry Stogov)

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you already have doc-block. nothing should be done in PHP core, but you
have to parse it yourself.
The goal of annotations is to provide standard and powerful way.
On the other hand standard PHP expression syntax may be not enough for all
cases.

Thanks. Dmitry.

On Mon, Feb 16, 2015 at 2:22 PM, Cesar Rodas <cesar@rodas.me> wrote:

>
> On 16/02/15 12:19, Dmitry Stogov wrote:
> > I decided to explain the proposed annotation syntax "in words" to avoid
> > misunderstanding
> >
> > annotations ::=3D { annotation }.
> > annotation   ::=3D '<' STRING '>' | '<' STRING '(' expr ')' '>'.
> >
> > where <expr> is regular PHP expression.
> Why not doc-block annotations? So it can be parse/understand that is
> already there (Doctrine annotations for instance).
>
> >
> > Thanks. Dmitry.
> >
> >
> > On Mon, Feb 16, 2015 at 2:07 PM, Dmitry Stogov <dmitry@zend.com> wrote:
> >
> >> hi,
> >>
> >> During discussion of different ways of implementing "Design by Contrac=
t"
> >> 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 annotatio=
ns
> >> in PHP7 and how powerful they may be :
> >> https://gist.github.com/dstogov/dbf2a8f46e43719bd2c2
> >>
> >> The test there is self explainable. Of course, annotations just provid=
e
> a
> >> way to add metadata, but doesn't define attribute names or the ways th=
ey
> >> are going to be used. Only Reflection API to read.
> >>
> >> There are still a lot of technical problems that have to be solved.
> >> Right now, we just need to answer a question - if we like this in PHP7=
?
> >> Thought and opinions are welcome...
> >>
> >> Thanks. Dmitry.
> >>
>
> --
> C=C3=A9sar D. Rodas
> Open Source developer
> +595-983-161124
> PGP: F9ED A265 A3AB C8A1 D145 7368 158A 0336 C707 0AA6
>
>
>

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