Hi, Is anyone working on the Key-value observing?
http://developer.apple.com/documentation/Cocoa/Conceptual/KeyValueObserving/index.html In the documentation one can read: "Automatic key-value observing is implemented using a technique called isa-swizzling. The isa pointer, as the name suggests, points to the object's class which maintains a dispatch table. This dispatch table essentially contains pointers to the methods the class implements, among other data. When an observer is registered for an attribute of an object the isa pointer of the observed object is modified, pointing to an intermediate class rather than at the true class. As a result the value of the isa pointer does not necessarily reflect the actual class of the instance. " Is it difficult to implement it in GNUstep? If not, what is needed? If noone is working on it and if someone skilled knows how to implement it or has some hints, please write notes for others here: http://mediawiki.gnustep.org/index.php?title=Key_Value_Observing&action=edit Thanks, Stefan Urbanek -- http://stefan.agentfarms.net First they ignore you, then they laugh at you, then they fight you, then you win. - Mahatma Gandhi _______________________________________________ Gnustep-dev mailing list Gnustep-dev@gnu.org http://lists.gnu.org/mailman/listinfo/gnustep-dev
