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Date: Sat, 5 May 2012 11:26:47 +0200
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To: Stefan Marr <php@stefan-marr.de>
Cc: Hannes Magnusson <hannes.magnusson@gmail.com>, Scott MacVicar <scott@macvicar.net>, 
	PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Enforcing final in traits
From: nikita.ppv@googlemail.com (Nikita Popov)

On Sat, May 5, 2012 at 1:38 AM, Stefan Marr <php@stefan-marr.de> wrote:
>
> On 04 May 2012, at 21:46, Hannes Magnusson wrote:
>
>> On Fri, May 4, 2012 at 8:30 PM, Scott MacVicar <scott@macvicar.net> wrote:
>>> This caused a few bugs for us / confusion. The final keyword is accepted inside a trait but it the class also defines a method without the final keyword this takes precedence.
>
> The methods in the class always take precedency.
>
> However, the final keyword might just be something I overlooked.
> It sounds sensible that if the final is not explicitly removed during composition to treat it as what final was meant for and check it against the methods defined in the class body as well.
>
> Scott, could you elaborate a bit of the use case of final in a trait?

Here is an example:
http://stackoverflow.com/questions/7104957/building-a-singleton-trait-with-php-5-4

Not the best things to use traits for, but probably something people
*will* try to do.

Nikita