@available attributes in Swift do not carry to Objective-C

Originator:craig.pearlman
Number:rdar://24304256 Date Originated:22-Jan-2016 03:37 PM
Status:Open Resolved:
Product:Xcode Product Version:7.2
Classification: Reproducible:Always
 
Summary:
If a code is marked with an @available attribute, and the code is also made available in Objective-C, the auto-generated Objective-C "bridge" does not mark its code as deprecated.

Steps to Reproduce:
1. Create a simple Swift type and mark it deprecated, for example: @available(iOS, introduced=8.0, deprecated=9.0, message="Stop using this.")
2. Make sure the type is available in Objective-C.
3. Use the deprecated type in some Swift code.
4. Use the deprecated type in some Objective-C code.
5. Build.

Expected Results:
Deprecation warnings appear in both Swift and Objective-C code.

Actual Results:
Deprecation warnings appear only in Swift code.

Version:
Xcode 7.2

Notes:
This was observed on a Swift class extension on NSObject, but the problem likely carries over elsewhere.

Configuration:
Not Applicable

Comments


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