Re: some questions relate to selector and NSView

[Adam Fedor]

Banlu Kemiyatorn wrote:
> I have some questions,
> 1) why can't there be sel_getUid() as an alias to sel_get_uid()?

You can make the alias yourself. It might look like the file 
gnustep-base/Headers/gnustep/base/objc-gnu2next.h, only in reverse. I'd 
prefer using the OpenStep function NSSelectorFromString(), however.

> 2) if I send a non existing selector to anObject, eg [anObject hoho];
> (or may be [anObject performSelector:sel_get_uid("hoho")];)
> gstep will crash even I implement doesNotRecognizeSelector:
> right after I choose to ignore from
>
> "Critical Error in MyApp"
> NSInternalInconsistencyException:GSFFCallInvocation.m:777
> Assertion failed in GSInvocationCallback. No signature for selector hoho.
>
> Why is that? It shouldn't crash, should it?

Nope. Looks like a bug.

> 3) Why NSView doesn't do mouseUp? But I guess this is a bug
> since it didn't match the behavior of NSView according to oreilly's
> learning cocoa book. (It is strange that sometimes it work)
What should it do? According to the docs, mouseUp: is implemented in 
NSResponder.
If you want it to actually do something, you have to implement it 
yourself in your custom view subclass to do something appropriate.


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Adam Fedor, Digital Optics Corp.      | I'm glad I hate spinach, because
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