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[SR-14075] Compiler crash when implementing async Obj-C delegate methods #56464

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jshier opened this issue Jan 21, 2021 · 2 comments
Closed

[SR-14075] Compiler crash when implementing async Obj-C delegate methods #56464

jshier opened this issue Jan 21, 2021 · 2 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself concurrency Feature: umbrella label for concurrency language features

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@jshier
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jshier commented Jan 21, 2021

Previous ID SR-14075
Radar rdar://problem/73460924
Original Reporter @jshier
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Environment

Xcode 12.3, swift-DEVELOPMENT-SNAPSHOT-2021-01-19-a, 2020 iMac i9

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

md5: 79f687df9a7c6753fe91d8a65d2f7ee7

Issue Description:

Attempting to implement URLSessionTaskDelegate with the following code produces the attached crash:

actor class SessionDelegate: NSObject {
    
}

extension SessionDelegate: URLSessionTaskDelegate {
    func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge) async -> (URLSession.AuthChallengeDisposition, URLCredential?) {
        (.performDefaultHandling, nil)
    }
}
@typesanitizer
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@DougGregor
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Fixed by #35661 thanks!

@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 concurrency Feature: umbrella label for concurrency language features
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@jshier @DougGregor @typesanitizer