Xcode 16 crash on scan

[dcilia]

Hi, I am getting a crash in Xcode 16.1 beta (latest build) when calling scanForPeripherals... the function does not crash when called on Xcode 15.

[manolofdez]

Hi, I just tested on Xcode 16.1 beta (16B5001e) and didn't get a crash. Do you mind sharing how your CentralManager is constructed and how you're calling scanForPeripherals?

[dcilia]

Hi, I'm using 2.0.0 of the package. I made a quick project to reproduce. Attaching it here. AsyncBT.zip

struct ContentView: View {
    var body: some View {
        VStack {
            Image(systemName: "globe")
                .imageScale(.large)
                .foregroundStyle(.tint)
            Text("Hello, world!")
        }
        .padding()
        .task {
           let stream = try? await CentralManager().scanForPeripherals(withServices: nil)

        }
    }
}

[dcilia]

Sorry forgot to mention I can reproduce using Mac Catalyst destination

[manolofdez]

Thanks for posting the sample project. I was able to reproduce the crash with that project, though like you said, only when using the Mac Catalyst destination. That said, it seems like it's not a bug with AsyncBluetooth specifically. It's also reproducible if you replace the task modifier with:

.task {
    try? await withCheckedThrowingContinuation { continuation in
        continuation.resume()
    }
}

I'll keep an eye out, but I suspect there's nothing we can do here.

[dcilia]

It's been resolved by Apple for a future Xcode release.