src/test/ui/proc-macro/inner-attrs.rs

   1 // compile-flags: -Z span-debug --error-format human
   2 // aux-build:test-macros.rs
   3 // edition:2018
   4
   5 #![feature(custom_inner_attributes)]
   6 #![feature(proc_macro_hygiene)]
   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 #[print_target_and_args(first)]
  17 #[print_target_and_args(second)]
  18 fn foo() {
  19     #![print_target_and_args(third)]
  20     #![print_target_and_args(fourth)]
  21 }
  22
  23 #[print_target_and_args(mod_first)]
  24 #[print_target_and_args(mod_second)]
  25 mod inline_mod {
  26     #![print_target_and_args(mod_third)]
  27     #![print_target_and_args(mod_fourth)]
  28 }
  29
  30 struct MyStruct {
  31     field: bool
  32 }
  33
  34 #[derive(Print)]
  35 struct MyDerivePrint {
  36     field: [u8; {
  37         match true {
  38             _ => {
  39                 #![cfg_attr(not(FALSE), rustc_dummy(third))]
  40                 true
  41             }
  42         };
  43         0
  44     }]
  45 }
  46
  47 fn bar() {
  48     #[print_target_and_args(tuple_attrs)] (
  49         3, 4, {
  50             #![cfg_attr(not(FALSE), rustc_dummy(innermost))]
  51             5
  52         }
  53     );
  54
  55     #[print_target_and_args(tuple_attrs)] (
  56         3, 4, {
  57             #![cfg_attr(not(FALSE), rustc_dummy(innermost))]
  58             5
  59         }
  60     );
  61
  62     for _ in &[true] {
  63         #![print_attr] //~ ERROR expected non-macro inner attribute
  64     }
  65
  66     let _ = {
  67         #![print_attr] //~ ERROR expected non-macro inner attribute
  68     };
  69
  70     let _ = async {
  71         #![print_attr] //~ ERROR expected non-macro inner attribute
  72     };
  73
  74     {
  75         #![print_attr] //~ ERROR expected non-macro inner attribute
  76     };
  77 }
  78
  79
  80 extern {
  81     fn weird_extern() {
  82         #![print_target_and_args_consume(tenth)]
  83     }
  84 }
  85
  86 fn main() {}