> 2010/3/4 Stéphane Rollandin<lecteur at zogotounga.net>:
>>> base (false) ->    parent(true) ->    subclass(false).
>>
>> I have this mostly in class-side methods; an example in Squeak proper (that
>> is, not my code), is TestCase class>>isAbstract
>
> ah, but that's a different story; there may well be multiple abstract
> classes along one inheritance chain. A MyMorph subclass that will
> respond with false to isMyMorph is another thing.

again because you equate the semantics of #isMyMorph to isKindOf: Morph

this may not be the case. I could have Morph -> MyMorph -> YourMorph -> 
MyOtherMorph and want both MyMorph and MyOtherMorph answer true to 
#isMyMorph

yes I could ! remember I'm a monkey :)

Stef