| // This test checks that the error messages you get for this example |
| // at least mention `'a` and `'static`. The precise messages can drift |
| // over time, but this test used to exhibit some pretty bogus messages |
| // that were not remotely helpful. |
| |
| // error-pattern:the lifetime 'a |
| // error-pattern:the static lifetime |
| |
| struct Invariant<'a>(Option<&'a mut &'a mut ()>); |
| |
| fn mk_static() -> Invariant<'static> { Invariant(None) } |
| |
| fn unify<'a>(x: Option<Invariant<'a>>, f: fn(Invariant<'a>)) { |
| let bad = if x.is_some() { |
| x.unwrap() |
| } else { |
| mk_static() |
| }; |
| f(bad); |
| } |
| |
| fn main() {} |
