theissue

gistfile1.txt

fn sometest(c: future::Loop<u32,u32>) -> impl Future<Item=future::Loop<u32,u32>,Error=u32>
{
    let delay = if let future::Loop::Continue(_) = c {
                        Instant::now().add(Duration::from_secs(1))
                    } else {
                       Instant::now()
                    };

                    let res = Delay::new(delay)
                        .map(move |_|{
                            c
                        })
                        .map_err(|_|
                        {
                            1
                        });


                    //this causes an error//
                     if let future::Loop::Continue(_) = c{
                        res.map_err(|e|{
                            e
                        })
                     }
                     else
                     {  
                        res                     
                    }
                    
}