| // run-pass |
| |
| use std::panic::Location; |
| |
| struct Foo; |
| |
| impl Foo { |
| #[track_caller] |
| fn check_loc(&self, line: u32, col: u32) -> &Self { |
| let loc = Location::caller(); |
| assert_eq!(loc.file(), file!(), "file mismatch"); |
| assert_eq!(loc.line(), line, "line mismatch"); |
| assert_eq!(loc.column(), col, "column mismatch"); |
| self |
| } |
| } |
| |
| fn main() { |
| // Tests that when `Location::caller` is used in a method chain, |
| // it points to the start of the correct call (the first character after the dot) |
| // instead of to the very first expression in the chain |
| let foo = Foo; |
| foo. |
| check_loc(line!(), 9).check_loc(line!(), 31) |
| .check_loc(line!(), 10); |
| } |
