| // run-pass | |
| #![allow(path_statements)] | |
| #![allow(unused_variables)] | |
| // Regression test for issue #19499. Due to incorrect caching of trait | |
| // results for closures with upvars whose types were not fully | |
| // computed, this rather bizarre little program (along with many more | |
| // reasonable examples) let to ambiguity errors about not being able | |
| // to infer sufficient type information. | |
| // pretty-expanded FIXME #23616 | |
| fn main() { | |
| let n = 0; | |
| let it = Some(1_usize).into_iter().inspect(|_| {n;}); | |
| } |