src/test/run-pass/macro-attribute-expansion.rs

   1 // Copyright 2013-2014 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 macro_rules! descriptions {
  12     ($name:ident is $desc:expr) => {
  13         // Check that we will correctly expand attributes
  14         #[doc = $desc]
  15         #[allow(dead_code)]
  16         const $name : &'static str = $desc;
  17     }
  18 }
  19
  20 // item
  21 descriptions! { DOG is "an animal" }
  22 descriptions! { RUST is "a language" }
  23
  24 pub fn main() {
  25 }