| // check-pass | |
| // edition:2018 | |
| // This test is derived from | |
| // https://github.com/rust-lang/rust/issues/72651#issuecomment-668720468 | |
| // This test demonstrates that, in `async fn g()`, | |
| // indeed a temporary borrow `y` from `x` is live | |
| // while `f().await` is being evaluated. | |
| // Thus, `&'_ u8` should be included in type signature | |
| // of the underlying generator. | |
| async fn f() -> u8 { 1 } | |
| pub async fn g(x: u8) { | |
| match x { | |
| y if f().await == y => (), | |
| _ => (), | |
| } | |
| } | |
| fn main() { | |
| let _ = g(10); | |
| } |