1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![allow(unused_variables)]
12 #![allow(unused_assignments)]
14 #![deny(unreachable_code)]
17 // The match is considered unreachable here, because the `return`
19 match {return} { } //~ ERROR unreachable
23 match () { () => return }
24 println!("I am dead");
25 //~^ ERROR unreachable statement
29 match () { () if false => return, () => () }
30 println!("I am not dead");
34 match () { () if false => return, () => return }
35 println!("I am dead");
36 //~^ ERROR unreachable statement
40 // Here the compiler fails to figure out that the `println` is dead.
41 match () { () if return => (), () => return }
42 println!("I am dead");
46 match Some(()) { None => (), Some(()) => return }
47 println!("I am not dead");
51 match Some(()) { None => return, Some(()) => () }
52 println!("I am not dead");