src/test/run-pass/issue-39709.rs

   1 // Copyright 2017 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! id { ($($t:tt)*) => { $($t)* } }
  12
  13 fn main() {
  14     println!("{}", { macro_rules! x { ($()*) => {} } 33 });
  15     id!(macro_rules! m { ($($i:ident),*) => { ($($i),*) } });
  16     let (foo, bar) = (0, 0);
  17     assert_eq!(m!(foo, bar), (0, 0));
  18 }