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[SR-8131] 4.2 Regression: Subclass of non-NSObject class with at-objc method not emitting ObjC class metadata #50663

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zwaldowski opened this issue Jun 28, 2018 · 2 comments
Closed

[SR-8131] 4.2 Regression: Subclass of non-NSObject class with at-objc method not emitting ObjC class metadata #50663

zwaldowski opened this issue Jun 28, 2018 · 2 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself

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@zwaldowski
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Previous ID SR-8131
Radar None
Original Reporter @zwaldowski
Type Bug
Status Resolved
Resolution Duplicate

Attachment: Download

Environment

Xcode Version 10.0 beta 2 (10L177m)
Apple Swift version 4.2 (swiftlang-1000.0.16.9 clang-1000.10.25.3)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug
Assignee None
Priority Medium

md5: 8bc858c262c52ba8f6795bb5c6a6aeb3

duplicates:

  • SR-7882 Runtime crash "class does not implement methodSignatureForSelector:" in swift class

Issue Description:

A subclass of a non-NSObject Swift class with an at-objc method is not having its ObjC class emitted; calling the at-objc method from the superclass on the subclass through ObjC yields a does-not-respond crash.

See ViewController.swift in attached file. I reduced down the repro as far as I could.
@belkadan
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@slavapestov, this is the "extension of class with a resilient field" issue that you just fixed. Can you dup this?

@zwaldowski
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Brilliant, thanks everyone!

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself
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@zwaldowski @belkadan