src/test/run-pass/macro-crate-use.rs

   1 // Copyright 2014 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 pub fn increment(x: uint) -> uint {
  12     x + 1
  13 }
  14
  15 #[macro_export]
  16 macro_rules! increment {
  17     ($x:expr) => ({
  18         use $crate::increment;
  19         increment($x)
  20     })
  21 }
  22
  23 fn main() {
  24     assert_eq!(increment!(3), 4);
  25 }