src/test/run-pass/sepcomp-fns.rs

   1 // Copyright 2012 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 // ignore-bitrig
  12 // compile-flags: -C codegen-units=3
  13
  14 // Test basic separate compilation functionality.  The functions should be able
  15 // to call each other even though they will be placed in different compilation
  16 // units.
  17
  18 // Generate some code in the first compilation unit before declaring any
  19 // modules.  This ensures that the first module doesn't go into the same
  20 // compilation unit as the top-level module.
  21
  22 fn one() -> usize { 1 }
  23
  24 mod a {
  25     pub fn two() -> usize {
  26         ::one() + ::one()
  27     }
  28 }
  29
  30 mod b {
  31     pub fn three() -> usize {
  32         ::one() + ::a::two()
  33     }
  34 }
  35
  36 fn main() {
  37     assert_eq!(one(), 1);
  38     assert_eq!(a::two(), 2);
  39     assert_eq!(b::three(), 3);
  40 }