function_compose

Function lift_sync_fn1

Source 
pub fn lift_sync_fn1<'a, T1, T2, E1, F: FnOnce(T1) -> Result<T2, E1> + Send + Sync + 'a>(
    f: F,
) -> BoxedFn1<'a, T1, T2, E1>
Expand description

Function to box FnOnce sync function with 1 aguments and coerce it to BoxedFn1