Enhancement Request: Make KVO enhancements in iOS11/macOS 10.13 available in Objective-C
| Originator: | armadsen | ||
| Number: | rdar://32769078 | Date Originated: | 06/14/2017 |
| Status: | Open | Resolved: | |
| Product: | Developer Tools | Product Version: | Xcode 9.0 beta (9M136h) |
| Classification: | Reproducible: | Always |
Summary:
Foundation in iOS11 and macOS 10.13 provides some very nice enhancements to Key Value Observing, including block/closure based observers, easy unregistration, the NSKeyValueObservedChange type, etc. Unfortunately, it seems these enhancements are only available when using Swift, despite KVO requiring the use of the Objective-C runtime. Most if not all of these changes would be very useful in Objective-C as well, so I'm requested that they be made available in Objective-C.
Steps to Reproduce:
Try to use new foo.observe() { } style API in Objective-C
Expected Results:
Block based KVO API is available in Objective-C.
Observed Results:
Block based KVO API is only available in Swift.
Comments
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