| // Regression test for issue 57464. |
| // |
| // Closure are (surprisingly) allowed to outlive their signature. As such it |
| // was possible to end up with `ReScope`s appearing in the concrete type of an |
| // opaque type. As all regions are now required to outlive the bound in an |
| // opaque type we avoid the issue here. |
| |
| // build-pass (FIXME(62277): could be check-pass?) |
| |
| struct A<F>(F); |
| |
| unsafe impl <'a, 'b, F: Fn(&'a i32) -> &'b i32> Send for A<F> {} |
| |
| fn wrapped_closure() -> impl Sized { |
| let f = |x| x; |
| f(&0); |
| A(f) |
| } |
| |
| fn wrapped_closure_with_bound() -> impl Sized + 'static { |
| let f = |x| x; |
| f(&0); |
| A(f) |
| } |
| |
| fn main() { |
| let x: Box<dyn Send> = Box::new(wrapped_closure()); |
| let y: Box<dyn Send> = Box::new(wrapped_closure_with_bound()); |
| } |
