diff options
Diffstat (limited to 'src/libcore/panic.rs')
| -rw-r--r-- | src/libcore/panic.rs | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/libcore/panic.rs b/src/libcore/panic.rs index dbfcbca3ffc..1ffd493d813 100644 --- a/src/libcore/panic.rs +++ b/src/libcore/panic.rs @@ -77,7 +77,11 @@ impl<'a> PanicInfo<'a> { /// use std::panic; /// /// panic::set_hook(Box::new(|panic_info| { - /// println!("panic occurred: {:?}", panic_info.payload().downcast_ref::<&str>().unwrap()); + /// if let Some(s) = panic_info.payload().downcast_ref::<&str>() { + /// println!("panic occurred: {:?}", s); + /// } else { + /// println!("panic occurred"); + /// } /// })); /// /// panic!("Normal panic"); @@ -112,8 +116,10 @@ impl<'a> PanicInfo<'a> { /// /// panic::set_hook(Box::new(|panic_info| { /// if let Some(location) = panic_info.location() { - /// println!("panic occurred in file '{}' at line {}", location.file(), - /// location.line()); + /// println!("panic occurred in file '{}' at line {}", + /// location.file(), + /// location.line(), + /// ); /// } else { /// println!("panic occurred but can't get location information..."); /// } @@ -222,6 +228,8 @@ impl<'a> Location<'a> { /// assert_ne!(this_location.line(), another_location.line()); /// assert_ne!(this_location.column(), another_location.column()); /// ``` + // FIXME: When stabilizing this method, please also update the documentation + // of `intrinsics::caller_location`. #[unstable( feature = "track_caller", reason = "uses #[track_caller] which is not yet stable", |