2024-05-06 20:40:05 +00:00
|
|
|
---
|
2024-10-29 18:27:12 +00:00
|
|
|
date: 2020-11-20
|
2024-05-06 20:40:05 +00:00
|
|
|
id: 23599316-9c90-48cf-b77d-63b5ee1a8496
|
|
|
|
|
title: ready
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
# Description
|
|
|
|
|
|
|
|
|
|
readcy[^1] creates a future that is immediately ready with a value.
|
|
|
|
|
|
|
|
|
|
Futures created through this function are functionally similar to those
|
|
|
|
|
created through `async {}`. The main difference is that futures created
|
|
|
|
|
through this function are named and implement `Unpin`.
|
|
|
|
|
|
|
|
|
|
# Declaration
|
|
|
|
|
|
|
|
|
|
``` rust
|
|
|
|
|
pub fn ready<T>() -> Ready<T>
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
# Notable traits
|
|
|
|
|
|
|
|
|
|
``` rust
|
|
|
|
|
impl<T> Future for Ready<T>
|
|
|
|
|
type Output = T;
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
# Examples
|
|
|
|
|
|
|
|
|
|
``` rust
|
|
|
|
|
use core::future;
|
|
|
|
|
|
|
|
|
|
let a = future::ready(1);
|
|
|
|
|
assert_eq!(a.await, 1);
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
# Footnotes
|
|
|
|
|
|
|
|
|
|
[^1]: <https://doc.rust-lang.org/std/future/fn.pending.html>
|
