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#![warn(clippy::unused_async)]
use std::future::Future;
use std::pin::Pin;
async fn foo() -> i32 {
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}
async fn bar() -> i32 {
foo().await
}
struct S;
impl S {
async fn unused(&self) -> i32 {
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}
async fn used(&self) -> i32 {
self.unused().await
}
}
trait AsyncTrait {
fn trait_method() -> Pin<Box<dyn Future<Output = i32>>>;
}
macro_rules! async_trait_impl {
() => {
impl AsyncTrait for S {
fn trait_method() -> Pin<Box<dyn Future<Output = i32>>> {
async fn unused() -> i32 {
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}
Box::pin(unused())
}
}
};
}
async_trait_impl!();
fn main() {
foo();
bar();
}
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