| // Copyright 2015 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. |
| |
| pub trait Test { type T; } |
| |
| impl Test for u32 { |
| type T = i32; |
| } |
| |
| pub mod export { |
| #[no_mangle] |
| pub extern "C" fn issue_28983(t: <u32 as ::Test>::T) -> i32 { t*3 } |
| } |
| |
| // to test both exporting and importing functions, import |
| // a function from ourselves. |
| extern "C" { |
| fn issue_28983(t: <u32 as Test>::T) -> i32; |
| } |
| |
| fn main() { |
| assert_eq!(export::issue_28983(2), 6); |
| assert_eq!(unsafe { issue_28983(3) }, 9); |
| } |
