| // 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)] |
| #![allow(unused_variables)] |
| #![deny(unreachable_code)] |
| |
| use std::ops; |
| |
| struct Foo; |
| |
| impl ops::Add<!> for Foo { |
| type Output = !; |
| fn add(self, rhs: !) -> ! { |
| unimplemented!() |
| } |
| } |
| |
| fn main() { |
| let x = Foo + return; //~ ERROR unreachable |
| } |
