Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:33704
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain zend.com designates 212.25.124.162 as permitted sender)
Message-ID: <4755FD27.3030802@zend.com>
Date: Tue, 04 Dec 2007 17:21:43 -0800
Organization: Zend Technologies
User-Agent: Thunderbird 2.0.0.9 (Windows/20071031)
MIME-Version: 1.0
To: Gregory Beaver <greg@chiaraquartet.net>
CC: Derick Rethans <derick@php.net>, 
 PHP Developers Mailing List <internals@lists.php.net>
References: <alpine.DEB.0.98.0712042315260.20300@kossu.ez.no> <4755E492.2080906@chiaraquartet.net>
In-Reply-To: <4755E492.2080906@chiaraquartet.net>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [PHP-DEV] Re: RFC: Dropping Namespace
From: stas@zend.com (Stanislav Malyshev)

> However, in the global scope (no namespace) it would fail.  This is a
> bug that is easily fixed.  use should allow re-aliasing of global
> classes, and I could provide a very easy fix.

This is not a bug - since there you work with test::xmlreader, which of 
course you can define. But in global space you'd work with existing name 
xmlreader, which would be redefined. And PHP never allowed redefining 
classes.

> file1.php:
> <?php
> class DB {}
> ?>
> 
> file2.php:
> <?php
> import DB as Other_DB;
> include 'file1.php';
> class DB extends Other_DB {}
> ?>

You mean 'use' should kill the old name? I don't think it's a good idea 
- we'd have to keep track of killed names, and since class can be named 
in a lot of ways - i.e. if you have name A::B::C::D you can alias any 
part of name, it would become messy.

Why exactly you need to rename existing classes?
-- 
Stanislav Malyshev, Zend Software Architect
stas@zend.com   http://www.zend.com/
(408)253-8829   MSN: stas@zend.com