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//@ edition:2021
//@ check-pass
use std::future::Future;
pub trait Pool {
type Conn;
#[allow(async_fn_in_trait)]
async fn async_callback<'a, F: FnOnce(&'a Self::Conn) -> Fut, Fut: Future<Output = ()>>(
&'a self,
callback: F,
) -> ();
}
pub struct PoolImpl;
pub struct ConnImpl;
impl Pool for PoolImpl {
type Conn = ConnImpl;
async fn async_callback<'a, F: FnOnce(&'a Self::Conn) -> Fut, Fut: Future<Output = ()>>(
&'a self,
_callback: F,
) -> () {
todo!()
}
}
fn main() {}
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