Commit 3b9c7f0

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feat: to no_std future::ready

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+23

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Lines changed: 23 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,8 @@`
	`1`	`+use core::future::Future;`
	`2`	`+use core::pin::Pin;`
	`3`	`+`
	`4`	`+use crate::task::{Context, Poll};`
	`5`	`+`
`1`	`6`	`/// Resolves to the provided value.`
`2`	`7`	`///`
`3`	`8`	/// This function is an async version of [`std::convert::identity`].
`@@ -15,6 +20,22 @@`
`15`	`20`	`/// #`
`16`	`21`	`/// # })`
`17`	`22`	/// ```
`18`		`-pub async fn ready<T>(val: T) -> T {`
`19`		`- val`
	`23`	`+pub fn ready<T>(val: T) -> Ready<T> {`
	`24`	`+ Ready(Some(val))`
	`25`	`+}`
	`26`	`+`
	`27`	+/// This future is constructed by the [`ready`] function.
	`28`	`+///`
	`29`	+/// [`ready`]: fn.ready.html
	`30`	`+#[derive(Debug)]`
	`31`	`+pub struct Ready<T>(Option<T>);`
	`32`	`+`
	`33`	`+impl<T> Unpin for Ready<T> {}`
	`34`	`+`
	`35`	`+impl<T> Future for Ready<T> {`
	`36`	`+ type Output = T;`
	`37`	`+`
	`38`	`+ fn poll(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<T> {`
	`39`	`+ Poll::Ready(self.0.take().unwrap())`
	`40`	`+ }`
`20`	`41`	`}`

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