tests/ui/rfc-2091-track-caller/diverging-caller-location.rs

   1 // run-fail
   2
   3 //! This test ensures that `#[track_caller]` can be applied directly to diverging functions, as
   4 //! the tracking issue says: https://github.com/rust-lang/rust/issues/47809#issue-292138490.
   5 //! Because the annotated function must diverge and a panic keeps that faster than an infinite loop,
   6 //! we don't inspect the location returned -- it would be difficult to distinguish between the
   7 //! explicit panic and a failed assertion. That it compiles and runs is enough for this one.
   8
   9 #[track_caller]
  10 fn doesnt_return() -> ! {
  11     let _location = core::panic::Location::caller();
  12     panic!("huzzah");
  13 }
  14
  15 fn main() {
  16     doesnt_return();
  17 }