src/test/ui/feature-gate/issue-43106-gating-of-builtin-attrs-error.rs

   1 // This is testing whether various builtin attributes signals an
   2 // error or warning when put in "weird" places.
   3 //
   4 // (This file sits on its own because it actually signals an error,
   5 // which would mess up the treatment of other cases in
   6 // issue-43106-gating-of-builtin-attrs.rs)
   7
   8 // ignore-tidy-linelength
   9
  10 // Crate-level is accepted, though it is almost certainly unused?
  11 #![inline]
  12
  13 #[inline]
  14 //~^ ERROR attribute should be applied to function or closure
  15 mod inline {
  16     //~^ NOTE not a function or closure
  17
  18     mod inner { #![inline] }
  19     //~^ ERROR attribute should be applied to function or closure
  20     //~| NOTE not a function or closure
  21
  22     #[inline = "2100"] fn f() { }
  23     //~^ ERROR attribute must be of the form
  24     //~| WARN this was previously accepted
  25     //~| NOTE #[deny(ill_formed_attribute_input)]` on by default
  26     //~| NOTE for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
  27
  28     #[inline] struct S;
  29     //~^ ERROR attribute should be applied to function or closure
  30     //~| NOTE not a function or closure
  31
  32     #[inline] type T = S;
  33     //~^ ERROR attribute should be applied to function or closure
  34     //~| NOTE not a function or closure
  35
  36     #[inline] impl S { }
  37     //~^ ERROR attribute should be applied to function or closure
  38     //~| NOTE not a function or closure
  39 }
  40
  41 #[no_link]
  42 //~^ ERROR attribute should be applied to an `extern crate` item
  43 mod no_link {
  44     //~^ NOTE not an `extern crate` item
  45
  46     mod inner { #![no_link] }
  47     //~^ ERROR attribute should be applied to an `extern crate` item
  48     //~| NOTE not an `extern crate` item
  49
  50     #[no_link] fn f() { }
  51     //~^ ERROR attribute should be applied to an `extern crate` item
  52     //~| NOTE not an `extern crate` item
  53
  54     #[no_link] struct S;
  55     //~^ ERROR attribute should be applied to an `extern crate` item
  56     //~| NOTE not an `extern crate` item
  57
  58     #[no_link]type T = S;
  59     //~^ ERROR attribute should be applied to an `extern crate` item
  60     //~| NOTE not an `extern crate` item
  61
  62     #[no_link] impl S { }
  63     //~^ ERROR attribute should be applied to an `extern crate` item
  64     //~| NOTE not an `extern crate` item
  65 }
  66
  67 #[export_name = "2200"]
  68 //~^ ERROR attribute should be applied to a function or static
  69 mod export_name {
  70     //~^ NOTE not a function or static
  71
  72     mod inner { #![export_name="2200"] }
  73     //~^ ERROR attribute should be applied to a function or static
  74     //~| NOTE not a function or static
  75
  76     #[export_name = "2200"] fn f() { }
  77
  78     #[export_name = "2200"] struct S;
  79     //~^ ERROR attribute should be applied to a function or static
  80     //~| NOTE not a function or static
  81
  82     #[export_name = "2200"] type T = S;
  83     //~^ ERROR attribute should be applied to a function or static
  84     //~| NOTE not a function or static
  85
  86     #[export_name = "2200"] impl S { }
  87     //~^ ERROR attribute should be applied to a function or static
  88     //~| NOTE not a function or static
  89 }
  90
  91 fn main() {}