Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:111498
MIME-Version: 1.0
References: <alpine.DEB.2.23.453.2008100935570.7489@singlemalt.home.derickrethans.nl>
 <CABHuAWyyNQ-w8X458OCbQxX5WXLwABhFjv8sFEbwcw1YrG=rhw@mail.gmail.com>
 <alpine.DEB.2.23.453.2008111320530.7489@singlemalt.home.derickrethans.nl>
 <CABHuAWx_rF=_o7UXmzexKPtzbj_vFRa8sodSOMhe5tS1rtvLiw@mail.gmail.com>
 <BYAPR05MB65351C2A1E0F10B01739DE32DE450@BYAPR05MB6535.namprd05.prod.outlook.com>
 <CAJmjfvXyhLWJ4OB5f1uN7aiNhUJCt-_o20=8CfcV6xmA0iq-gQ@mail.gmail.com> <98192A9B-C5AF-4767-A300-77ED224BF1D6@gmail.com>
In-Reply-To: <98192A9B-C5AF-4767-A300-77ED224BF1D6@gmail.com>
Date: Wed, 12 Aug 2020 21:43:40 +0200
Message-ID: <CAJmjfvUN-G5DAai=h0_UDwjC1hYYUuRuPRpseHrWR6=g7eyi3A@mail.gmail.com>
To: Rowan Tommins <rowan.collins@gmail.com>
Cc: php internals <internals@lists.php.net>
Content-Type: text/plain; charset="UTF-8"
Subject: Re: [PHP-DEV] [VOTE] Shorter Attribute Syntax Change
From: jakob@givoni.dk (Jakob Givoni)

On Wed, Aug 12, 2020 at 9:08 PM Rowan Tommins <rowan.collins@gmail.com> wrote:
>
> On 12 August 2020 19:03:02 BST, Jakob Givoni <jakob@givoni.dk> wrote:
> >> > Is
> >> >
> >> > <?php @[Bar()]; ?>
> >> >
> >> > on it's own an error?
> >>
> >> Yes. Basically this is an example of valid code in PHP 7 that will
> >> break if @[] is adopted.
> >
> >Wow, that was unexpected. By what logic?
> >Also, how long must I wait before I can put a semicolon after the new
> >attribute syntax? Is one whitespace enough or do I have to go to a new
> >line?
> >To me, suddenly disallowing semicolons at some points between
> >statements or between a "declaration" and a statement seems to break
> >PHP logic.
>
>
> It's not that the semicolon is forbidden as such, it's that the code is interpreted completely differently.
>
> Imagine if we had no "private" keyword, and then added it; this would previously have been valid (a statement followed by a declaration):
>
> private; function foo () {}

Ok, that's starting to make sense. Having seen so many attribute
examples lately I started to get the impression that you could
basically insert them anywhere (like comments) - even if it didn't
technically make any sense... Reading the original RFC again I
understand that an attribute MUST be directly followed by a function,
class, interface, traits, class constant, class property, class
method, function/method parameter, a docblock or another attribute. I
hope I didn't forget anything... Sorry, I'm just a sucker for details
and accuracy :-)

Thanks,
Jakob