| //@ run-pass | |
| //@ edition: 2024 | |
| //@ compile-flags: -Zunstable-options | |
| #![allow(incomplete_features)] | |
| #![feature(ref_pat_eat_one_layer_2024)] | |
| struct Foo; | |
| //~^ WARN struct `Foo` is never constructed | |
| fn main() { | |
| || { | |
| //~^ WARN unused closure that must be used | |
| if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { | |
| let _: u32 = x; | |
| } | |
| }; | |
| } |