src/test/ui/invalid-rustc_args_required_const-arguments.rs

   1 #![feature(rustc_attrs)]
   2
   3 #[rustc_args_required_const(0)] //~ ERROR index exceeds number of arguments
   4 fn foo1() {}
   5
   6 #[rustc_args_required_const(1)] //~ ERROR index exceeds number of arguments
   7 fn foo2(_: u8) {}
   8
   9 #[rustc_args_required_const(a)] //~ ERROR arguments should be non-negative integers
  10 fn foo4() {}
  11
  12 #[rustc_args_required_const(1, a, 2, b)] //~ ERROR arguments should be non-negative integers
  13 fn foo5(_: u8, _: u8, _: u8) {}
  14
  15 #[rustc_args_required_const(0)] //~ ERROR attribute should be applied to a function
  16 struct S;
  17
  18 #[rustc_args_required_const(0usize)] //~ ERROR suffixed literals are not allowed in attributes
  19 fn foo6(_: u8) {}
  20
  21 extern {
  22     #[rustc_args_required_const(1)] //~ ERROR index exceeds number of arguments
  23     fn foo7(_: u8);
  24 }
  25
  26 #[rustc_args_required_const] //~ ERROR malformed `rustc_args_required_const` attribute
  27 fn bar1() {}
  28
  29 #[rustc_args_required_const = 1] //~ ERROR malformed `rustc_args_required_const` attribute
  30 fn bar2() {}
  31
  32 fn main() {}