pub struct PanicInfo<'a> { /* private fields */ }
Expand description
Implementations§
source§impl<'a> PanicInfo<'a>
impl<'a> PanicInfo<'a>
sourcepub fn payload(&self) -> &(dyn Any + Send + 'static)
pub fn payload(&self) -> &(dyn Any + Send + 'static)
sourcepub fn message(&self) -> Option<&Arguments<'_>>
🔬This is a nightly-only experimental API. (panic_info_message
#66745)
pub fn message(&self) -> Option<&Arguments<'_>>
panic_info_message
#66745)If the panic!
macro from the core
crate (not from std
)
was used with a formatting string and some additional arguments,
returns that message ready to be used for example with fmt::write
sourcepub fn location(&self) -> Option<&Location<'_>>
pub fn location(&self) -> Option<&Location<'_>>
Returns information about the location from which the panic originated, if available.
This method will currently always return Some
, but this may change
in future versions.
§Examples
use std::panic;
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(),
);
} else {
println!("panic occurred but can't get location information...");
}
}));
panic!("Normal panic");
Runsourcepub fn can_unwind(&self) -> bool
🔬This is a nightly-only experimental API. (panic_can_unwind
#92988)
pub fn can_unwind(&self) -> bool
panic_can_unwind
#92988)Returns whether the panic handler is allowed to unwind the stack from the point where the panic occurred.
This is true for most kinds of panics with the exception of panics
caused by trying to unwind out of a Drop
implementation or a function
whose ABI does not support unwinding.
It is safe for a panic handler to unwind even when this function returns false, however this will simply cause the panic handler to be called again.