src/test/ui/proc-macro/weird-braces.rs

   1 // aux-build:test-macros.rs
   2 // check-pass
   3 // compile-flags: -Z span-debug
   4
   5 #![feature(custom_inner_attributes)]
   6
   7 #![no_std] // Don't load unnecessary hygiene information from std
   8 extern crate std;
   9
  10 extern crate test_macros;
  11 use test_macros::{print_target_and_args};
  12
  13 struct Foo<const V: bool>;
  14 trait Bar<const V: bool> {}
  15
  16 #[print_target_and_args(first_outer)]
  17 #[print_target_and_args(second_outer)]
  18 impl Bar<{1 > 0}> for Foo<{true}> {
  19     #![print_target_and_args(first_inner)]
  20     #![print_target_and_args(second_inner)]
  21 }
  22
  23 fn main() {}