1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
use crate::future::Future;
#[unstable(feature = "into_future", issue = "67644")]
pub trait IntoFuture {
    
    #[unstable(feature = "into_future", issue = "67644")]
    type Output;
    
    #[unstable(feature = "into_future", issue = "67644")]
    type Future: Future<Output = Self::Output>;
    
    #[unstable(feature = "into_future", issue = "67644")]
    fn into_future(self) -> Self::Future;
}
#[unstable(feature = "into_future", issue = "67644")]
impl<F: Future> IntoFuture for F {
    type Output = F::Output;
    type Future = F;
    fn into_future(self) -> Self::Future {
        self
    }
}