| // compile-fail | |
| #![feature(never_type)] | |
| #![feature(exhaustive_patterns)] | |
| #![allow(unreachable_code)] | |
| #![deny(unreachable_patterns)] | |
| enum Void {} | |
| impl Iterator for Void { | |
| type Item = Void; | |
| fn next(&mut self) -> Option<Void> { | |
| None | |
| } | |
| } | |
| fn main() { | |
| for _ in unimplemented!() as Void {} | |
| //~^ ERROR unreachable pattern | |
| } | |