| // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #![feature(never_type)] |
| |
| // Regression test for inhabitedness check. The old |
| // cache used to cause us to incorrectly decide |
| // that `test_b` was invalid. |
| |
| struct Foo { |
| field1: !, |
| field2: Option<&'static Bar>, |
| } |
| |
| struct Bar { |
| field1: &'static Foo |
| } |
| |
| fn test_a() { |
| let x: Option<Foo> = None; |
| match x { None => () } |
| } |
| |
| fn test_b() { |
| let x: Option<Bar> = None; |
| match x { None => () } |
| } |
| |
| fn main() { } |
