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[SR-10224] Initing NSObjects via a Generic no longer works in Xcode 10.2 #52624

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swift-ci opened this issue Mar 28, 2019 · 1 comment
Closed

[SR-10224] Initing NSObjects via a Generic no longer works in Xcode 10.2 #52624

swift-ci opened this issue Mar 28, 2019 · 1 comment
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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 regression run-time crash Bug → crash: Swift code crashed during execution swift 5.0

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@swift-ci
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Previous ID SR-10224
Radar rdar://problem/49423627
Original Reporter lucasjordan (JIRA User)
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Environment

Xcode 10.2

macOS 10.14.4

Additional Detail from JIRA
Votes 1
Component/s Compiler
Labels Bug, 5.0Regression, RunTimeCrash
Assignee lucasjordan (JIRA)
Priority Medium

md5: e6aafee38146c466a1c8a175a63d363d

Issue Description:

I have attached a playground that works in Xcode 10.1 and not in Xcode 10.2. Basically there is a function that creates a new object based on the generic type used.

This is used heavily in a project I maintain to handle serialization and deserialization of a mix of NSObjects and vanilla Swift objects.

Also, I am calling this a bug because the object that comes back from the function causes a EXC_BAD_ACCESS regardless of if let and what not.

Thanks!

Also, I don't have a workaround yet.
@jckarter
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I think @slavapestov fixed this on master. With a recent snapshot, the playground prints:

Lucas
Jordan

as expected. Would you be able to try a recent snapshot toolchain from swift.org/download to confirm?

@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
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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 regression run-time crash Bug → crash: Swift code crashed during execution swift 5.0
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@jckarter @swift-ci @AnthonyLatsis