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Date: Fri, 22 Feb 2008 00:26:26 +0100
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Subject: Re: [PHP-DEV] RFC: Traits for PHP
From: dz@bitxtender.com (=?ISO-8859-1?Q?David_Z=FClke?=)

Am 22.02.2008 um 00:16 schrieb Stefan Marr:

> Sounds a bit like what had been proposed in this paper: http://www.iam.unibe.ch/~scg/Archive/Papers/Duca07b-FreezableTrait.pdf
>
> The first point, yes exclusion and aliasing are only meant to handle  
> conflicts, and should be used only in this context. Yeah you can  
> break the trait with it, but you did it explicitly, think this  
> should be made clear a bit more in the discussion about "breaking  
> interfaces".
>
> Nobody would request unset to be removed from the function set even  
> though you can do this:
>
> $a = new A();
> unset($a);
> $a->foo();  //damn...
>
> It is "almost" like excluding a method from a trait and be worried  
> about  the trait breaks. Isn't it? :)

I agree. It's called "asking for it". Since traits can only be added  
in dynamically, a programmer always knows what he is doing when  
excluding or aliasing a method in a trait.

PHP needs to stop worrying about the "confusing newbies" thing when  
discussing advanced features. We're not talking about a basic bread  
and butter language construct here. Other parts of PHP aren't beginner  
friendly either, and not all parts ever could, let alone should.


David