(following on from the thread "How to debug this error on closing a document?", but it's really moved on to a new topic at this point)
I was not aware that poseAsClass is not available in 64 bit applications. I looked at the Apple example of exchanging a method in NSWindow, and it looked easy enough, so I tried the method exchanging by using class-dump to generate the header for NSConcreteNotification, and implemented the switch, but it gives a linker error: "_OBJC_CLASS_$_NSConcreteNotification", referenced from: l_OBJC_$_CATEGORY_NSConcreteNotification_$_MethodReplacement in MyConcreteNotification.o __objc_classrefs__d...@0 in MyConcreteNotification.o ld: symbol(s) not found collect2: ld returned 1 exit status So it must be in the foundation binary, but the linker doesn't pick it up. Is there a way around this? Gideon On 12/03/2010, at 2:00 AM, Jerry Krinock wrote: > > On 2010 Mar 11, at 02:27, Gideon King wrote: > >> or whether I would have to subclass NSConcreteNotification and override >> dealloc and then use pose as, so I could print out the notification name >> etc, to get the info > > That would work, but Method Replacement [1] was added in Objective-C 2.0 as a > replacement for "pose as class". However, to do Method Replacement, you need > to declare and implement a category on, in this case NSConcreteNotification, > but that won't compile because NSConcreteNotification is Apple-private. Does > anyone know how to do Method Replacement for debugging in an Apple-private > class? > > [1] > http://developer.apple.com/mac/library/samplecode/MethodReplacement/index.html > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
