mirror/async-std
2
0
Fork 1
mirror of https://github.com/async-rs/async-std.git synced 2025-02-28 15:19:41 +00:00
Code Issues Releases Wiki Activity

fix: Remove Pin API related unsafe code

Browse source
This commit is contained in:
k-nasa 2019-10-24 08:29:05 +09:00
parent 5c9cfb4fe8
commit d97b3dfdf3
1 changed files with 13 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
src/future/future/delay.rs
View file

@ -2,21 +2,23 @@ use std::pin::Pin;
use std::time::Duration;
use futures_timer::Delay;
use pin_project_lite::pin_project;
use crate::future::Future;
use crate::task::{Context, Poll};
pin_project! {
#[doc(hidden)]
#[derive(Debug)]
pub struct DelayFuture<F> {
pub struct DelayFuture<F> {
#[pin]
future: F,
#[pin]
delay: Delay,
}
}
impl<F> DelayFuture<F> {
pin_utils::unsafe_pinned!(future: F);
pin_utils::unsafe_pinned!(delay: Delay);
pub fn new(future: F, dur: Duration) -> DelayFuture<F> {
let delay = Delay::new(dur);
@ -27,10 +29,12 @@ impl<F> DelayFuture<F> {
impl<F: Future> Future for DelayFuture<F> {
type Output = F::Output;
fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
match self.as_mut().delay().poll(cx) {
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
let this = self.project();
match this.delay.poll(cx) {
Poll::Pending => Poll::Pending,
Poll::Ready(_) => match self.future().poll(cx) {
Poll::Ready(_) => match this.future.poll(cx) {
Poll::Ready(v) => Poll::Ready(v),
Poll::Pending => Poll::Pending,
},