How to use withTaskCancellationHandler properly?

[Alejandro_Martinez]

@malhal

Hope this example I just coded helps:

Thanks but this example is exactly what my last paragraph mentions.

@Alejandro_Martinez

Sometimes the workaround is easy, if the object we're using can give us a cancellation token separetly from the closure that gives us the results then we can just move the assignment outside.

 public func asyncFunc() async throws -> FeatureQueryResult {
        var request = someObject.createRequest() // gives us something that can start and also cancel the request
        return try await withTaskCancellationHandler {
            request.cancel()
        } operation: {
            try await withCheckedThrowingContinuation { continuation in
                request.start {
                    continuation.resume(with: $0)
                }
            }
        }
    }

So that's the easy case ^^ I still wonder about the more tricky and common one