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