Re: [Pyobjc-dev] Underscores in methods/instance variables

[Petr M. <pet...@an...>]

Hi,

I made some more digging into this matter and the only thing I found so 
far is this one (sorry, a long one):

http://developer.apple.com/DOCUMENTATION/Cocoa/Conceptual/CodingGuidelines/Articles/NamingMethods.html#//apple_ref/doc/uid/20001282-1003829-BCIBDJCA

and some good insights here:

  http://www.cocoadev.com/index.pl?CodingGuidelines

So unless anybody knows and posts more profound answer, I suggest that 
the paragraph in the PyObjC intro stating """...instance variables 
prefixed with underscores are reserved by the Objective-C runtime...""" 
was put there based on the Apple's recommendation of not using such 
variables.

Cheers,
Petr

Orestis Markou wrote:
> Hello all,
> 
> I want to clarify a bit the advice of the documentation to *not* use  
> the Python conventions of not using leading underscores for "private"  
> instance attributes.
> 
> Is it the danger of accidentally overwriting some other Obj-C  
> attribute if there's a name clash? What about methods with leading  
> underscores?
> 
> I fully understand that in order a method to be accessible from Obj-C  
> code it has to follow the methodWithArg_andArg_(self, arg1, arg2)  
> convention. In my case, these are "private" methods that I have no  
> desire to expose to anyone.
> 
> The class in question is just a delegate that implements a custom init  
> method and the delegate method. These are the only things that use the  
> obj-c convention. The rest of the code is using the Python convention,  
> with leading underscores in attributes and methosd, property  
> decorators and so on.
> 
> Testing indicates that things are working perfectly fine, I'm just  
> worried that there may some stability issues that may not visible at  
> this point. I've heard rumours of hard crashes that may have been  
> related to this, so I'm a bit worried.
> 
> Thanks,
> Orestis
> --
> or...@or...
> http://orestis.gr/
> 
> 
> 
> 
> 
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