I have an odd issue I m experiencing I m getting a crash in kotlinlang #kotlin-native

I have an odd issue I’m experiencing. I’m getting ...

Sam

11/15/2018, 1:09 PM

I have an odd issue I’m experiencing. I’m getting a crash in a swift codebase calling into a companion obeject. The message is being sent to the wrong companion object and it is crashing. More details in the thread.

Sam

11/15/2018, 1:16 PM

I created a UUID common object and wrapped the native UUID objects in it. This was fine in older code because when calling from swift it still had the framework name as a prefix. Now though in order to disambiguate them I have to write myframework.UUID which should be fine. However when I call myframework,UUID.companion().create() it sends the message to a different companion object and the app crashes. The code is open source so can be found at https://github.com/samus/pistachio/blob/master/native-example-ios/Pistachio-iOS%20Example/ViewController.swift

Sam

11/16/2018, 3:10 AM

I have worked around this by converting the wrapping expect/actual UUID type to an expect class and type aliases to the platforms UUID types.

svyatoslav.scherbina

11/19/2018, 12:37 PM

I can’t reproduce the issue. Have you tried using newest Xcode? This crash may be related to Swift compiler bug.

Sam

11/19/2018, 5:31 PM

Were you trying to replicate from the latest commit or from this one?

8cf75aff4a237d6f825c34e444f942a567396ce6

I am using Xcode 10.1. Usually when I see weird things like this I clean the project and delete Xcode's derived data. None of that worked.

svyatoslav.scherbina

11/20/2018, 7:01 AM

8cf75aff4a237d6f825c34e444f942a567396ce6

Yes, I’m using this commit.

I am using Xcode 10.1.

This is strange, because to make this code compilable in Xcode 10.1 I had to replace

UITableViewCellEditingStyle

UITableViewCell.EditingStyle

. Do you use custom Swift toolchain in Xcode 10.1?

svyatoslav.scherbina

11/20/2018, 7:14 AM

Ok, I’ve found that your example project has custom Swift version specified. However this doesn’t seem to have any effect on reproducing the issue. I can’t reproduce it with project from the repository too.

Sam

11/20/2018, 3:37 PM

I will check out that commit again and see if I can still reproduce the problem.

Sam

11/20/2018, 5:17 PM

I checked out the commit again and couldn't reproduce the error. It must have been some stale build output lying around. Thanks for looking into this.

svyatoslav.scherbina

11/21/2018, 7:09 AM

Thank you for checking the commit again 🙂

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