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Date: Thu, 7 Nov 2013 13:43:15 +0100
Message-ID: <CALtuQzCG0hVfr9AoxYAFnOWqFcAtknN-jGmrdeBxGBMVs_qvCg@mail.gmail.com>
To: Lars Strojny <lars@strojny.net>
Cc: Bob Weinand <bobwei9@hotmail.com>, List PHP Mailing List <internals@lists.php.net>, 
	Dmitry Stogov <dmitry@zend.com>
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Subject: Re: [PHP-DEV] [RFC] Constant Scalar Expressions (with constants)
From: krebs.seb@gmail.com (Sebastian Krebs)

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2013/11/7 Lars Strojny <lars@strojny.net>

> Hi Bob,
>
> thanks for your work, it=92s awesome. One thing about constants:
>
> Take this example:
>
> const FOO =3D 2;
>
> class Klass
> {
>    const FOO =3D 1;
>    const BAR =3D FOO;
> }
>
> Here FOO is ambiguous, as it could resolve to 2 or to 1. If I understood
> it correctly, global constants are not yet implemented but I would sugges=
t
> to always force prefixing the constant to get rid of the ambiguity and
> allow for future extension.
>
> const FOO =3D 2;
>
> class Klass
> {
>    const FOO =3D 1;
>    const BAR =3D self::FOO;
> }
>
> Does that make sense?
>

Yes, also from the consistency point of view: I'd expected to refer class
constants via its class name (or self/static). Having to ways to refer them
is confusing.


>
> cu,
> Lars
>
> On 07 Nov 2013, at 13:01, Bob Weinand <bobwei9@hotmail.com> wrote:
>
> > Hi!
> >
> > As you all know, Anthony Ferrara had withdrawn his RFC a few months ago=
,
> which was without support for constants in these expressions:
> >
> > const foo =3D 10;
> > const bar =3D 10 * foo;
> >
> > The use of a constant in a declaration of a constant was not yet
> possible with his patch.
> >
> > That's what I changed.
> >
> > Enjoy reading the RFC at:
> >
> > https://wiki.php.net/rfc/const_scalar_exprs
> >
> > Bob Weinand
> >
> > Special thanks go to Dmitry who had helped me a lot with feedback and a
> deep review of the patch.
> > --
> > PHP Internals - PHP Runtime Development Mailing List
> > To unsubscribe, visit: http://www.php.net/unsub.php
> >
>
>


--=20
github.com/KingCrunch

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