| #![warn(indirect_structural_match)] | |
| use std::cell::Cell; | |
| trait Foo<'a> { | |
| const C: Option<Cell<&'a u32>>; | |
| } | |
| impl<'a, T> Foo<'a> for T { | |
| const C: Option<Cell<&'a u32>> = None; | |
| } | |
| fn main() { | |
| let a = 22; | |
| let b = Some(Cell::new(&a)); | |
| //~^ ERROR `a` does not live long enough [E0597] | |
| match b { | |
| <() as Foo<'static>>::C => { } | |
| //~^ WARN must be annotated with `#[derive(PartialEq, Eq)]` | |
| //~| WARN will become a hard error in a future release | |
| _ => { } | |
| } | |
| } |