Le 30 juil. 2013 à 17:25, Scott Ribe <scott_r...@elevated-dev.com> a écrit :

> On Jul 30, 2013, at 9:08 AM, Andy Lee <ag...@mac.com> wrote:
> 
>> I think it's subject to the same criticisms as *any* direct access to ivars, 
>> although I agree it feels sketchier when done in plain C for some reason.
> 
> Yes. Because what is the point of plain C functions in Objective-C files? 
> Local helpers that are not OOP, and do not go through method dispatch 
> overhead. To turn around and inject direct access to ivars in those is really 
> mixing metaphors.
> 
>> Which reminds me... instance methods can also directly access the ivars of 
>> *other* instances of the same class.
> 
> Now, *that* I knew. I'm sorry senator, I cannot recall if I ever did such a 
> thing. But I knew it was possible ;-)

I think I don't have a single copyWithZone: implementation that does not use 
this feature.

Foo *copy = [super copyWithZone:];
copy->_myivar = _myivar;

Especially as all ivars are not exposed as properties.


-- Jean-Daniel





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