src/test/compile-fail/unused-macro.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 #![feature(decl_macro)]
  12 #![deny(unused_macros)]
  13
  14 // Most simple case
  15 macro unused { //~ ERROR: unused macro definition
  16     () => {}
  17 }
  18
  19 #[allow(unused_macros)]
  20 mod bar {
  21     // Test that putting the #[deny] close to the macro's definition
  22     // works.
  23
  24     #[deny(unused_macros)]
  25     macro unused { //~ ERROR: unused macro definition
  26         () => {}
  27     }
  28 }
  29
  30 mod boo {
  31     pub(crate) macro unused { //~ ERROR: unused macro definition
  32         () => {}
  33     }
  34 }
  35
  36 fn main() {}