Sounds to me you subclassed the wrong class. KVC is provided by NSObject. If you subclass NSProxy, the -setValue:forKey: message is not implemented, so will get forwarded on like others.
On 13 Jul 2010, at 13:53, Graham Cox wrote: > It appears that calling -setValue:forKey: on an object bypasses or ignores > any invocation forwarding it has set up, unless I'm missing some obvious > error. > > I have an object that acts as a wrapper for another object, and so that the > wrapper can, under some circumstances, act as the thing it is wrapping, it > implements invocation forwarding using the 'classic' approach of overriding > -respondsToSelector:, -methodSignatureForSelector: and -forwardInvocation: > but when I call -setValue:forKey: on the wrapper (where key is implemented by > the thing wrapped), it throws the 'not key-value coding compliant for key' > exception. The stack trace appears to show that this failure occurs before it > has even attempted to follow the forwarded path. However if I simply call the > wrapped property setter directly, the forwarding works. As this needs to work > on 10.5, I can't use the 10.6 solution of -forwardingTargetForSelector: (not > that I've tested it to see if it exhibits the same issue or not). > > Is this the expected behaviour? > > --Graham > > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > 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/cocoadev%40mikeabdullah.net > > This email sent to cocoa...@mikeabdullah.net _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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 arch...@mail-archive.com
