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[SR-5454] Malformed #keyPath(…) on NSObject subclass segfaults compiler #48026

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tkrajacic opened this issue Jul 14, 2017 · 3 comments
Closed

[SR-5454] Malformed #keyPath(…) on NSObject subclass segfaults compiler #48026

tkrajacic opened this issue Jul 14, 2017 · 3 comments
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@xedin
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software

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@tkrajacic
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Previous ID SR-5454
Radar None
Original Reporter @tkrajacic
Type Bug
Status Closed
Resolution Done

Attachment: Download

Environment

Xcode 9b3

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, CompilerCrash
Assignee @xedin
Priority Medium

md5: e39f42df7eafac641a80d20d1921c74d

Issue Description:

When having a malformed #keyPath(…) the compiler usually gives an error but if it is on an NSObject subclass it segfaults.

import Foundation
// Remove NSObject inheritance and it doesn't crash
class Muppet: NSObject {
    var identifier: String = "Kermit"
    
    static func predicateForIdentifier(_ id: String) -> NSPredicate {
        return NSPredicate(format: "%K = %@", #keyPath(Self.identifier), id)
    }
}

Attached is an example project for quick checking
@belkadan
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No longer crashes on master. @jckarter, @xedin, did this get fixed recently?

@xedin
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xedin commented Jul 14, 2017

Has been fixed by #10909 @tkrajacic please validate when the latest nightly.

@tkrajacic
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Tested with Xcode 10 and Swift 4.2 and this is fixed

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis added the crash Bug: A crash, i.e., an abnormal termination of software label Dec 12, 2022
This issue was closed.
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@xedin xedin

Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software
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4 participants
@xedin @belkadan @tkrajacic @AnthonyLatsis