Samir Saidani <saidani at info.unicaen.fr>
> 
> Hi there,
> 
> During a coding party, a student caused a quite strange bug easy to
> reproduce in the stable squeak 3.7 :
> 
> In a workspace, 
> LanguageEditor := Morph new. (for instance)
> 
> Yes I know, this is a non sense, but all is possible with beginners !
> What surprised me is that it shouldn't work, but it works actually.
> So, then in a browser (tested with RB and System Browser), try to
> browse the class LanguageEditor -> Bug. And unfortunately, the bug
> message does not indicate to the beginner the nature of his
> error. Anyway I didn't manage to get rid of this bug.
> 
> Ideas ?

If I try inspect

    LanguageEditor := Morph new.

I get a menu "Unknown variable: LanguageEditor please correct, or cancel", while if I inspect

    foo := Morph new.

I get an Inspector popping up all nice & neat.

Is this difference what you're reporting as a bug?

Ooh, hang on. I decided to try create the class, and I got a series of FITBMs. I got the "which category" morph, entered "Unknown". When I got to the class definition morph, I hit "cancel". I ended up with an Unknown category added, and a LanguageEditor class. Remember that I'd hit cancel - I'd expected to not see a class here!. And finally I got an inspector on the Morph. And trying to browse the class resulted in an MNU on #categories in Browser>>rawMessageCategoryList.

(This latter bit, adding a class even though you hit cancel, comes from Parser>>defineClass:. Surely it shouldn't? If the person hits cancel for either FITBM, the method should exit.)

frank


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