mirror of https://github.com/rust-lang/rust
27 lines
386 B
Rust
27 lines
386 B
Rust
//@ edition:2018
|
|
#![feature(must_not_suspend)]
|
|
#![deny(must_not_suspend)]
|
|
|
|
#[must_not_suspend = "You gotta use Umm's, ya know?"]
|
|
struct Umm {
|
|
i: i64,
|
|
}
|
|
|
|
struct Bar {
|
|
u: Umm,
|
|
}
|
|
|
|
async fn other() {}
|
|
|
|
impl Bar {
|
|
async fn uhoh(&mut self) {
|
|
let guard = &mut self.u; //~ ERROR `Umm` held across
|
|
|
|
other().await;
|
|
|
|
*guard = Umm { i: 2 }
|
|
}
|
|
}
|
|
|
|
fn main() {}
|