[Newbies] Howto initialize class variables
alex at schenkman.info
Sat Mar 20 11:31:47 UTC 2010
Bert your are super!
* never call "super initialize" on the class side
Why? I thought it was "polite" to do it, =)
On Sat, Mar 20, 2010 at 10:10, Bert Freudenberg <bert at freudenbergs.de>wrote:
> On 20.03.2010, at 09:46, Alex Schenkman wrote:
> > Hi List!
> > I'm playing with class variables. How should I initialize them?
> > I've tried with the class method initialize but it does not do the job.
> > Pirulo class>>initialize
> > super initialize.
> > myClassVar := Dictionary new at: 'one' put: 1.
> * never call "super initialize" on the class side
> * class variables should be capitalized
> * class initializers need to be executed manually
> * they are only executed automatically when loading the class (e.g. file-in
> or via Monticello)
> So this would be right:
> Pirulo class>>initialize
> "self initialize"
> MyClassVar := Dictionary new at: 'one' put: 1.
> The "self initialize" comment is conventionally put there so you can easily
> double-click after the opening quotes to select the whole expression, and
> do-it. You need to do it any time you change the initialize method. This
> works because when evaluating code in a Browser, "self" refers to the
> currently selected class.
> - Bert -
> Beginners mailing list
> Beginners at lists.squeakfoundation.org
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