| //@ 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() {} |