| // Copyright 2017 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(catch_expr)] |
| |
| fn main() { |
| let mut a = 0; |
| let () = { |
| let _: Result<(), ()> = do catch { |
| let _ = Err(())?; |
| return |
| }; |
| a += 1; |
| }; |
| a += 2; |
| assert_eq!(a, 3); |
| } |
