error[E0521]: borrowed data escapes outside of function | |
--> $DIR/region-invariant-static-error-reporting.rs:15:9 | |
| | |
LL | fn unify<'a>(x: Option<Invariant<'a>>, f: fn(Invariant<'a>)) { | |
| - `x` is a reference that is only valid in the function body | |
LL | let bad = if x.is_some() { | |
LL | x.unwrap() | |
| ^^^^^^^^^^ `x` escapes the function body here | |
error: aborting due to previous error | |