| // Copyright 2015 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. |
| |
| #![allow(unused_variables)] |
| #![allow(unreachable_code)] |
| // Test that we can extract a ! through pattern matching then use it as several different types. |
| |
| #![feature(never_type)] |
| |
| fn main() { |
| let x: Result<u32, !> = Ok(123); |
| match x { |
| Ok(z) => (), |
| Err(y) => { |
| let q: u32 = y; |
| let w: i32 = y; |
| let e: String = y; |
| y |
| }, |
| } |
| } |
| |
