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Date: Wed, 20 Feb 2008 23:54:18 -0600
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Message-ID: <200802202354.18400.larry@garfieldtech.com>
Subject: Re: [PHP-DEV] RFC: Traits for PHP
From: larry@garfieldtech.com (Larry Garfield)

On Wednesday 20 February 2008, Andi Gutmans wrote:

> a)
> I think Traits should be able to act as a self-contained behavior which can
> always be expected to work. For example if I want a Counter behavior I
> would like that not to depend on the properties in the containing class.
> While I don't think we should enable public nor protected properties in
> Traits I think allowing for private properties in Traits would come in very
> handy. It also is no problem when it comes to mangling as we can use the
> Trait name.
>
> class Trait {
> 	private $counter = 0;
> 	function getNextSerialNumber() {
> 		return $this->counter++;
> 	}
> }
>
> I strongly recommend not to support protected/public and not to even get
> into the discussion of dealing with conflicts of such properties. But I
> think private is very useful.

Hi Andi.  Why no ppp on Traits?  It seems useful to be able to pull in a 
utility function or functions that can be leveraged from other methods, like 
domain-specific parsers, without exposing them to the outside world.  Is it 
an engine-level implementation issue, or a conceptual complexity issue?  I 
don't really see a complexity issue on the developer level, at least for me.

-- 
Larry Garfield			AIM: LOLG42
larry@garfieldtech.com		ICQ: 6817012

"If nature has made any one thing less susceptible than all others of 
exclusive property, it is the action of the thinking power called an idea, 
which an individual may exclusively possess as long as he keeps it to 
himself; but the moment it is divulged, it forces itself into the possession 
of every one, and the receiver cannot dispossess himself of it."  -- Thomas 
Jefferson