Swift: Can't set NSMenuItem target to object that is not NSObject

Originator:twealm
Number:rdar://21442342 Date Originated:18-Jun-2015 07:13 PM
Status:Open Resolved:No
Product:OS X SDK Product Version:
Classification:Other bug Reproducible:Always
 
Summary:
In documentation https://developer.apple.com/library/mac/documentation/Cocoa/Reference/ApplicationKit/Classes/NSMenuItem_Class/#//apple_ref/occ/instm/NSMenuItem/setTarget: and in header file NSMenuItem has property target, that is defined as 
weak var target: AnyObject?
but if I assign to it object that is not inherited from NSObject, it will crash with 
*** NSForwarding: warning: object 0x608000000ec0 of class 'CheckMenuSwift.MenuHandler' does not implement methodSignatureForSelector: -- trouble ahead
Unrecognized selector -[CheckMenuSwift.MenuHandler methodForSelector:].

Steps to Reproduce:
1. Download attached sample project
2. In AppDelegate.swift file on line 22 change false to true.
3. Run app


Expected Results:
It should not crash.

Actual Results:
App crashes.

Version:
Xcode Version 6.3.2 (6D2105)
OS X 10.10.3 (14D136)

Comments

Sample code: https://github.com/twealm/rdar-21442342

By twealm at June 18, 2015, 4:23 p.m. (reply...)

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