src/test/ui/macros/macro-meta-items.rs

   1 // run-pass
   2 #![allow(dead_code)]
   3 // compile-flags: --cfg foo
   4
   5 macro_rules! compiles_fine {
   6     ($at:meta) => {
   7         #[cfg($at)]
   8         static MISTYPED: () = "foo";
   9     }
  10 }
  11 macro_rules! emit {
  12     ($at:meta) => {
  13         #[cfg($at)]
  14         static MISTYPED: &'static str = "foo";
  15     }
  16 }
  17
  18 // item
  19 compiles_fine!(bar);
  20 emit!(foo);
  21
  22 fn foo() {
  23     println!("{}", MISTYPED);
  24 }
  25
  26 pub fn main() {
  27     // statement
  28     compiles_fine!(baz);
  29     emit!(baz);
  30     println!("{}", MISTYPED);
  31 }