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Date: Tue, 05 Aug 2008 14:48:37 +0900
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To: Dmitry Stogov <dmitry@zend.com>
Cc: Marcus Boerger <helly@php.net>, internals@lists.php.net
References: <909776579.20080803142659@marcus-boerger.de> <4896A7C4.8090503@zend.com> <4110083360.20080804104233@marcus-boerger.de> <4896EA3C.6010203@zend.com>
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Subject: Re: [PHP-DEV] Inconsistencies in 5.3
From: moriyoshi@at.wakwak.com (Moriyoshi Koizumi)

Dmitry Stogov wrote:
> 
> 
> Marcus Boerger wrote:
>> Hello Dmitry,
>>
>> Monday, August 4, 2008, 8:55:00 AM, you wrote:
>>
>>> Hi Marcus,
>>
>>> see below
>>
>>> Marcus Boerger wrote:
>>>> Hello Internals,
>>>>
>>>>   please let's not introduce new inconsistencies. Rather lets make new
>>>> stuff consistent with old stuff during the alpha phase of 5.3.
>>>>
>>>> 1) new keyword 'use'. Semantically it is the same as 'static' or 
>>>> 'global'
>>>> so it should be used in the same location.
>>
>>> For me 'use' is the best keyword as it says that closure uses 
>>> variables from current content. (the same keyword is used for import 
>>> from namespaces)
>>
>> To be clear, I wasn't complaining about the keyword per se. I just prefer
>> it to be inside the curly braces of a closure next to global rather 
>> than in
>> front of it.
>>
> 
> No. The list of lexical variables is a part of the closure definition.
> 
> The earlier implementation had "lexical" keyword which worked as you are 
> suggesting, but it was much unclear.

I don't think there are many differences in ambiguity between

$closure = function ($arg) { use $a;
   ...
};

and

$closure = function ($arg) use ($a) {
};

Moriyoshi

-- 
Moriyoshi Koizumi <moriyoshi@at.wakwak.com>