rust/tests/ui/async-await/in-trait/async-example-desugared-man...

29 lines
586 B
Rust

//@ edition: 2021
//@ check-pass
use std::future::Future;
use std::task::Poll;
#[allow(async_fn_in_trait)]
pub trait MyTrait {
async fn foo(&self) -> i32;
}
pub struct MyFuture;
impl Future for MyFuture {
type Output = i32;
fn poll(self: std::pin::Pin<&mut Self>, _: &mut std::task::Context<'_>) -> Poll<Self::Output> {
Poll::Ready(0)
}
}
impl MyTrait for u32 {
#[warn(refining_impl_trait)]
fn foo(&self) -> MyFuture {
//~^ WARN impl trait in impl method signature does not match trait method signature
MyFuture
}
}
fn main() {}