Re: Scope/Protection Question

[Michael Diehr <md03@xochi.com>]

On May 30, 2009, at 8:05 PM, Joe Strout wrote:
> I don't agree.  Protected and private are not about restricting  
> access to some properties or methods to the particular objects that  
> own them. Rather, they are about restricting access to the CLASS  
> that owns them. That's why, for example, you can have a shared class  
> method (which is not associated with any instance at all!) that  
> accesses protected private members of objects of its class.  In the  
> same way, one object can always access the privates of another  
> member of the same class. Both of these behaviors are quite standard  
> and very useful (in factory functions or for making comparison  
> operators, for example).
Yes, I just discovered this while writing a Clone method -- initially  
I was worried that instance 1 couldn't see / change protected  
properties in instance 2.
I was happy to find out that I was wrong.



_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>

Search the archives:
<http://support.realsoftware.com/listarchives/lists.html>