| // This is a non-regression test for issue #117146, where NLL and `-Zpolonius=next` computed |
| // different loan scopes when a region flowed into an SCC whose representative was an existential |
| // region. |
| |
| // revisions: nll polonius |
| // [polonius] compile-flags: -Zpolonius=next |
| |
| fn main() { |
| let a = (); |
| let b = |_| &a; |
| //[nll]~^ ERROR `a` does not live long enough |
| //[polonius]~^^ ERROR `a` does not live long enough |
| bad(&b); |
| //[nll]~^ ERROR implementation of `Fn` |
| //[nll]~| ERROR implementation of `FnOnce` |
| //[polonius]~^^^ ERROR implementation of `Fn` |
| //[polonius]~| ERROR implementation of `FnOnce` |
| } |
| |
| fn bad<F: Fn(&()) -> &()>(_: F) {} |
