async-hofs

提供异步高阶函数的各种扩展特质。

// This won't make any name conflicts since all imports inside prelude are anonymous.
use async_hofs::prelude::*;

assert_eq!(
    Some(1).async_map(|x| async move { x + 2 }).await,
    Some(3),
);

type Result = core::result::Result<i32, i32>;

assert_eq!(
    Result::Ok(1).async_and_then(|_| async move { Err(77) }).await,
    Result::Err(77)
);