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// edition:2021
// [next] compile-flags: -Zlower-impl-trait-in-trait-to-assoc-ty
// revisions: current next
#![feature(return_position_impl_trait_in_trait)]
#![allow(incomplete_features)]
use std::future::Future;
pub trait AsyncTrait {
fn async_fn(&self, buff: &[u8]) -> impl Future<Output = Vec<u8>>;
}
pub struct Struct;
impl AsyncTrait for Struct {
fn async_fn<'a>(&self, buff: &'a [u8]) -> impl Future<Output = Vec<u8>> + 'a {
//~^ ERROR `impl` item signature doesn't match `trait` item signature
async move { buff.to_vec() }
}
}
fn main() {}
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