rust/tests/ui/async-await/dyn/wrong-size.rs
2025-03-18 17:35:26 +00:00

24 lines
500 B
Rust

//@ edition: 2021
//@ known-bug: #133119
#![feature(async_fn_in_dyn_trait)]
use std::future::Future;
trait AsyncTrait {
async fn async_dispatch(&self);
}
impl AsyncTrait for &'static str {
fn async_dispatch(&self) -> impl Future<Output = ()> {
async move {
// The implementor must box the future...
}
}
}
fn main() {
let x: &dyn AsyncTrait = &"hello, world!";
// FIXME ~^ ERROR `impl Future<Output = ()>` needs to have the same ABI as a pointer
}