src/test/run-pass/unique-ffi-symbols.rs

   1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // We used to have a __rust_abi shim that resulted in duplicated symbols
  12 // whenever the item path wasn't enough to disambiguate between them.
  13 fn main() {
  14     let a = {
  15         extern fn good() -> i32 { return 0; }
  16         good as extern fn() -> i32
  17     };
  18     let b = {
  19         extern fn good() -> i32 { return 5; }
  20         good as extern fn() -> i32
  21     };
  22
  23     assert!(a != b);
  24     assert_eq!((a(), b()), (0, 5));
  25 }