What is the correct way to await the completion of two Tasks in Swift 5.5 in a function that does not support concurrency?

Question

I have an app that does some processing given a string, this is done in 2 Tasks. During this time i'm displaying an animation. When these Tasks complete i need to hide the animation. The below code works, but is not very nice to look at. I believe there is a better way to do this?

let firTask = Task {
    /* Slow-running code */
}

let airportTask = Task {
    /* Even more slow-running code */
}

Task {
    _ = await firTask.result
    _ = await airportTask.result
    
    self.isVerifyingRoute = false
}

Answer 1

I would make the tasks discardable with an extension. Perhaps something like this:

extension Task {
    @discardableResult
    func finish() async -> Result<Success, Failure>  {
        await self.result
    }
}

Then you could change your loading task to:

Task {
    defer { self.isVerifyingRoute = false }
    await firTask.finish()
    await airportTask.finish()
}