rust/src/test/run-pass/issue-28983.rs
Ariel Ben-Yehuda bee664f9d0 normalize the types of foreign functions
This is needed as item types are allowed to be unnormalized.

Fixes an ICE that occurs when foreign function signatures contained
an associated type.

Fixes #28983
2015-10-12 21:54:48 +03:00

32 lines
896 B
Rust

// 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.
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);
}