src/test/ui/rfc-2091-track-caller/caller-location-intrinsic.rs

   1 // run-pass
   2 // revisions: default mir-opt
   3 //[mir-opt] compile-flags: -Zmir-opt-level=4
   4
   5 #[inline(never)]
   6 #[track_caller]
   7 fn codegen_caller_loc() -> &'static core::panic::Location<'static> {
   8     core::panic::Location::caller()
   9 }
  10
  11 macro_rules! caller_location_from_macro {
  12     () => (codegen_caller_loc());
  13 }
  14
  15 fn main() {
  16     let loc = codegen_caller_loc();
  17     assert_eq!(loc.file(), file!());
  18     assert_eq!(loc.line(), 16);
  19     assert_eq!(loc.column(), 15);
  20
  21     // `Location::caller()` in a macro should behave similarly to `file!` and `line!`,
  22     // i.e. point to where the macro was invoked, instead of the macro itself.
  23     let loc2 = caller_location_from_macro!();
  24     assert_eq!(loc2.file(), file!());
  25     assert_eq!(loc2.line(), 23);
  26     assert_eq!(loc2.column(), 16);
  27 }