src/test/ui/sepcomp/sepcomp-extern.rs

   1 // run-pass
   2 // compile-flags: -C codegen-units=3
   3 // aux-build:sepcomp-extern-lib.rs
   4
   5 // Test accessing external items from multiple compilation units.
   6
   7 extern crate sepcomp_extern_lib;
   8
   9 extern {
  10     fn foo() -> usize;
  11 }
  12
  13 fn call1() -> usize {
  14     unsafe { foo() }
  15 }
  16
  17 mod a {
  18     pub fn call2() -> usize {
  19         unsafe { ::foo() }
  20     }
  21 }
  22
  23 mod b {
  24     pub fn call3() -> usize {
  25         unsafe { ::foo() }
  26     }
  27 }
  28
  29 fn main() {
  30     assert_eq!(call1(), 1234);
  31     assert_eq!(a::call2(), 1234);
  32     assert_eq!(b::call3(), 1234);
  33 }