| // 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. |
| |
| #![allow(unused_variables)] |
| #![allow(unused_assignments)] |
| #![allow(dead_code)] |
| #![deny(unreachable_code)] |
| |
| fn a() { |
| // Here the tail expression is considered unreachable: |
| let x = { |
| return; |
| 22 //~ ERROR unreachable |
| }; |
| } |
| |
| fn b() { |
| // Here the `x` assignment is considered unreachable, not the block: |
| let x = { |
| return; |
| }; |
| } |
| |
| fn c() { |
| // Here the `println!` is unreachable: |
| let x = { |
| return; |
| println!("foo"); |
| //~^ ERROR unreachable statement |
| 22 |
| }; |
| } |
| |
| fn main() { } |