| // 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. |
| |
| // compile-pass |
| #![allow(dead_code)] |
| #![allow(unreachable_code)] |
| // Regression test for issue #39984. |
| // |
| // The key here is that the error type of the `Ok` call ought to be |
| // constrained to `String`, even though it is dead-code. |
| |
| fn main() {} |
| |
| fn t() -> Result<(), String> { |
| return Err("".into()); |
| Ok(()) |
| } |
