tests/ui/attributes/nonterminal-expansion.rs

   1 // Macros were previously expanded in `Expr` nonterminal tokens, now they are not.
   2
   3 macro_rules! pass_nonterminal {
   4     ($n:expr) => {
   5         #[repr(align($n))]
   6         //~^ ERROR expected unsuffixed literal or identifier, found `n!()`
   7         //~| ERROR incorrect `repr(align)` attribute format
   8         struct S;
   9     };
  10 }
  11
  12 macro_rules! n {
  13     () => { 32 };
  14 }
  15
  16 pass_nonterminal!(n!());
  17
  18 fn main() {}