On Friday 17 October 2003 3:06 pm, Peter van Rooijen wrote:
> > Changing the shape of a class will cause it to be re-compiled, as will
>
> adding
>
> > a class variable.
>
> Ned,
>
> I mean, show me code. I want to see what you mean, because I thought there
> could not be a problem, including under recompilation if a class definition
> is changed. Just one example scenario where ambiguity would arise would
> already be helpful.

I'm not sure, but consider this:

suppose we have an old method:

SomeClass subclass: ClassA (instance variables x and y)
	someMethod
		^x_y 	"same as 'x := y'"

then we change the meaning of embedded underscores but don't re-compile. The 
meaning of ClassA>>someMethod remains unchanged.

Now a parent of SomeClass adds an instance variable called 'x_y'. This causes 
the hierarchy to be re-compiled, changing the meaning of ClassA>>someMethod.

-- 
Ned Konz
http://bike-nomad.com
GPG key ID: BEEA7EFE