4 // This test is derived from
5 // https://github.com/rust-lang/rust/issues/72651#issuecomment-668720468
7 // This test demonstrates that, in `async fn g()`,
8 // indeed a temporary borrow `y` from `x` is live
9 // while `f().await` is being evaluated.
10 // Thus, `&'_ u8` should be included in type signature
11 // of the underlying generator.
13 #![feature(if_let_guard)]
14 #![allow(incomplete_features)]
16 async fn f() -> u8 { 1 }
17 async fn foo() -> [bool; 10] { [false; 10] }
19 pub async fn g(x: u8) {
21 y if f().await == y => (),
26 // #78366: check the reference to the binding is recorded even if the binding is not autorefed
28 async fn h(x: usize) {
30 y if foo().await[y] => (),
37 y if f().await == y + 1 => (),
44 y if let (1, 42) = (f().await, y) => (),