Xcode 13 beta 2 (13A5155e) uses two different versions of Concurrency for iOS and other platforms (e.g. macOS, watchOS, tvOS)

Question

frogcjn OP

Created Jun ’21

Replies 2

Boosts 0

Views 1.3k

Participants 3

It is ridiculous to use two different versions of Concurrency API for different platforms.

Xcode 13 beta 2 (13A5155e) uses two different versions of Concurrency for iOS and other platforms (e.g. macOS, watchOS, tvOS)!

 //
//  TestAsyncApp.swift
//  Shared
//
//

import SwiftUI

@main
struct TestAsyncApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
    
    @available(iOS 15.0, macOS 12.0, watchOS 8.0, tvOS 15.0, *)
    func testAsync() {

        #if os(macOS) ||  os(watchOS) || os(tvOS)
         // will trigger error for iOS
        Task {
        }
        Task.detach {
        }

        #elseif os(iOS)
        // will trigger deprecated warning for macOS, watchOS and tvOS
        async {
        }
        asyncDetached {
        }
        #endif
    }
}

Boost

Answer 1

DTS Engineer OP

Apple

Jun ’21

Yes, it’s clearly a problem for the new API to vary based on the platform, but I’m not quite sure what your goal is here:

If you’re asking whether this is the final plan then let me assure you that it is not.
If you’re asking for a workaround, it seems you’ve already found one. It’s horrible, but it’ll get you unblocked.
If you’re trying to file a bug report then… well… normally I’d recommend that you do that officially but in this case there’s not much point because this is a well-known issue.

Swift concurrency is evolving rapidly and it’s hard to make sure that all the spinning plates are spinning at the same rate )-:

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

2

Answer 2

cyclic OP

Jun ’21

Thank you for providing a workaround for now. This at least cleans up the warnings.

0