[−][src]Function futures_micro::prelude::or

pub fn or<F1, F2>(future1: F1, future2: F2) -> Or<F1, F2>ⓘ
Notable traits for Or<F1, F2>
impl<T, F1, F2> Future for Or<F1, F2> where
    F1: Future<Output = T>,
    F2: Future<Output = T>,     type Output = T;
 where
    F1: Future,
    F2: Future, 

Returns the result of left or right future, preferring left if both are ready.

Examples

use futures_micro::prelude::{or, pending, ready};

assert_eq!(or(ready(1), pending::<i32>()).await, 1);
assert_eq!(or(pending::<i32>(), ready(2)).await, 2);

// The first future wins.
assert_eq!(or(ready(1), ready(2)).await, 1);