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Improve PanicInfo examples readability

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This commit is contained in:
Guillaume Gomez 2020-04-23 20:18:14 +02:00
parent 2dc5b602ee
commit 03817ec789
1 changed files with 9 additions and 3 deletions
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12
src/libcore/panic.rs
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@ -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...");
/// }