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Date: Fri, 20 Nov 2009 10:10:01 +0300
Message-ID: <d1d50abe0911192310i3873d9c5nb0fd2fd14b2a65b5@mail.gmail.com>
To: Stanislav Malyshev <stas@zend.com>
Cc: PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Closures and $this
From: crocodile2u@gmail.com (Victor Bolshov)

Hi

> so you can with $foo->$bar() or $foo()

You're talking about variable functions/methods. But that is not the
subject of discussion. Variable functions/methods are useful but
introduce mess. This is well-known and this feature exists in PHP for
a long time - so everybody should be condidered as warned - when they
use it.

I am talking about $this->methodName() constructions. Currently, in
PHP, one can be pretty sure that if this construction works in one
place - it should work in another (I mean, methodName() will exist in
$this). To be mentioned - I'm not using variable functions here.

2009/11/19 Stanislav Malyshev <stas@zend.com>:
> Hi!
>
>> If php-people really would like rebinding $this, I beleive this should
>> be done via method like Closure->bindTo() - to make the fact of
>> rebinding clear in the code.
>>
>> However, there is a problem with rebinding $this - that was not
>> mentioned yet, I think.
>
> This can be a problem, but since PHP is not a compiled language, this
> problem already exists - all method names are only checked in runtime
> anyway, so it doesn't matter if you rebind the closure or not. Of course,
> with rebinding you can easily shoot yourself in the foot by calling
> non-existing method - but so you can with $foo->$bar() or $foo() or a num=
ber
> of other ways. So I think if this construct is expressed in a way that ma=
kes
> the intent clear (i.e., no implicit rebinding) then it would be OK.
> --
> Stanislav Malyshev, Zend Software Architect
> stas@zend.com =A0 http://www.zend.com/
> (408)253-8829 =A0 MSN: stas@zend.com
>



--=20
Regards,
Victor