Hi Michael,
on Tue, 16 May 2006 18:06:32 +0200, you mhaupt@gmail.com wrote:
Hi,
once more, apologies for cross-posting.
From ClassBuilder, I could see that, when a new class is created, the superclass's method dictionary contents are copied to the method dictionary of the new class.
I have not checked the code of ClassBuilder but in such a case the result is as follows (I do the same every now and then):
a) the VM cannot crash because the method dict field being initially nil b) every subclass which has the same methods as its superclass has, is invariant
So if the VM doesn't find a method in such a subclass, it will not find said method in the superclass, too.
What are you looking for?
/Klaus
Still, the interpreter climbs, in Interpreter>>lookupMethodInClass:, up the inheritance tree to resolve a method.
Why is that? Have I missed a spot where subclass creation does not entail method dictionary copying?
Thanks,
Michael