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[SR-5408] Compiler segfault with key path literal referring to weak property #47982

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swift-ci opened this issue Jul 9, 2017 · 6 comments
Closed

[SR-5408] Compiler segfault with key path literal referring to weak property #47982

swift-ci opened this issue Jul 9, 2017 · 6 comments
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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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@swift-ci
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swift-ci commented Jul 9, 2017

Previous ID SR-5408
Radar rdar://problem/33215221
Original Reporter andersha (JIRA User)
Type Bug
Status Resolved
Resolution Done
Environment

Xcode 9 beta 2

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, CompilerCrash
Assignee andersha (JIRA)
Priority Medium

md5: 0a20d81f0b3d26b38098b014f4695a9c

is duplicated by:

  • SR-5413 Observing weak properties SegFaults during compilation
  • SR-5807 Swift compiler crash when attempting to use #keyPath expression on weak reference

Issue Description:

Segfault 11, no log or stack trace is shown by Xcode.

class A {
    weak var b: AnyObject?
}

let keyPath = \A.b
print(keyPath)
@belkadan
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@jckarter, one of the things you fixed recently?

@jckarter
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@swift-ci create

@jckarter
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This looks like SR-5008.

@jckarter
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I take that back, the key path literal itself isn't in Any context like it was in 5008. This looks like it's due to us not handling the weak qualification.

@jckarter
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PR for master: #10954
PR for 4.0: #10955

@jckarter
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Merged to swift-4.0-branch as 5595cc8.

@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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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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@jckarter @belkadan @swift-ci @AnthonyLatsis