futures_micro

Function poll_fn

Source 
pub fn poll_fn<F, T>(inner: F) -> PollFn<F> ⓘ
where
    F: FnMut(&mut Context<'_>) -> Poll<T>,
Expand description

Creates a future from a function returning Poll.

§Examples

use futures_lite::future::block_on;
use futures_micro::poll_fn;
use std::task::{Context, Poll};

fn f(_ctx: &mut Context<'_>) -> Poll<i32> {
    Poll::Ready(7)
}

assert_eq!(poll_fn(f).await, 7);