tests/ui/proc-macro/cfg-eval-inner.rs

   1 // compile-flags: -Z span-debug
   2 // aux-build:test-macros.rs
   3 // check-pass
   4
   5 #![feature(cfg_eval)]
   6 #![feature(custom_inner_attributes)]
   7 #![feature(stmt_expr_attributes)]
   8 #![feature(rustc_attrs)]
   9
  10 #![no_std] // Don't load unnecessary hygiene information from std
  11 extern crate std;
  12
  13 #[macro_use]
  14 extern crate test_macros;
  15
  16 struct Foo<T>(T);
  17
  18 impl Foo<[u8; {
  19     #![cfg_attr(not(FALSE), rustc_dummy(cursed_inner))]
  20     #![allow(unused)]
  21     struct Inner {
  22         field: [u8; {
  23             #![cfg_attr(not(FALSE), rustc_dummy(another_cursed_inner))]
  24             1
  25         }]
  26     }
  27
  28     0
  29 }]> {
  30     #![cfg_eval]
  31     #![print_attr]
  32     #![cfg_attr(not(FALSE), rustc_dummy(evaluated_attr))]
  33
  34     fn bar() {
  35         #[cfg(FALSE)] let a = 1;
  36     }
  37 }
  38
  39 fn main() {}