src/test/ui/lint/lint-forbid-internal-unsafe.rs

   1 #![forbid(unsafe_code)]
   2 #![feature(allow_internal_unsafe)]
   3
   4 #[allow_internal_unsafe]
   5 //~^ ERROR: `allow_internal_unsafe` allows defining
   6 macro_rules! evil {
   7     ($e:expr) => {
   8         unsafe {
   9             $e
  10         }
  11     }
  12 }
  13
  14 fn main() {
  15     println!("{}", evil!(*(0 as *const u8)));
  16     //~^ WARNING dereferencing a null pointer
  17 }