mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-09-20 22:51:58 +00:00
4972989b61
This catches bugs of the form
tokio::spawn(async move {
let f = some_async_thing();
f // Oh no I forgot to await f so that work will never complete.
});
61 lines
1 KiB
Rust
61 lines
1 KiB
Rust
// run-rustfix
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// edition:2018
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#![feature(async_closure)]
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#![warn(clippy::async_yields_async)]
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use core::future::Future;
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use core::pin::Pin;
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use core::task::{Context, Poll};
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struct CustomFutureType;
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impl Future for CustomFutureType {
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type Output = u8;
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fn poll(self: Pin<&mut Self>, _: &mut Context) -> Poll<Self::Output> {
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Poll::Ready(3)
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}
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}
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fn custom_future_type_ctor() -> CustomFutureType {
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CustomFutureType
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}
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#[rustfmt::skip]
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fn main() {
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let _f = {
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3
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};
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let _g = async {
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3
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};
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let _h = async {
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async {
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3
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}
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};
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let _i = async {
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CustomFutureType
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};
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let _i = async || {
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3
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};
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let _j = async || {
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async {
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3
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}
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};
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let _k = async || {
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CustomFutureType
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};
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let _l = async || CustomFutureType;
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let _m = async || {
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println!("I'm bored");
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// Some more stuff
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// Finally something to await
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CustomFutureType
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};
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let _n = async || custom_future_type_ctor();
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}
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