I assume you mean there will be an inheritance issue if I want the variables to be inherited with a default value by the subclasses, which is a valid concern. Other than that you can have accessors for it as far I know . But yeah in that case of inheritance you need some kind of initialise method. I have not played with class instance variables so no clue about that part. On Wed, Aug 27, 2014 at 8:38 PM, webwarrior <reg@webwarrior.ws> wrote:
I've also chosen ifNil route. However, in that case you either: - break encapsulation by providing accessors - have to invoke initializing method in every method that uses class instance variables or class variables
27.08.2014 20:31, kilon.alios [via Smalltalk] напиÑав(ла):
yeah python does not need initialisation for class variables like it does for instance variables, but then same applies for instance variables, for example you can add instance variables and even instance method after the instance is created , pharo does something similar too.
Well OOP is a deep subject and this is an advanced topic that I would not want to put in an introductionary chapter.
I had issues with initialise on class side recently where i was told i had to initialise the class myself instead I chose to go down the ifNil route and initialise my class variables inside other methods. This way I avoided the creation of an initialise method, and probably i will avoid using it in the future too. From what I see most classes (metaclasses) dont use an initialise method either.
On Wed, Aug 27, 2014 at 7:33 PM, webwarrior <[hidden email] </user/SendEmail.jtp?type=node&node=4775110&i=0>> wrote:
class-side initialize.
I don't think it can be considered a metaprogramming in Smalltalk.
In Python, yes, messing with metaclass is metaprogramming. But things are a bit different there and metaclasses are very rarely used [explicitly].
27.08.2014 19:05, kilon.alios [via Smalltalk] напиÑав(ла):
> ok officially I am confused are we talking about initialise at the > instance side or class side (metaclass) side ? > > I am a python coder myself but I have not done any metaprogramming . > > If it is a metaprogramming thing then yes it wont go inside my intro > chapter since this is advanced topic and metaprogramming is already > covered by PBE on a separate chapter so that can be added there. Since I > am not experienced with metaprogramming it would be better if people > experienced with Pharo and metaprogramming would write the documentation .
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