#[lang = "panic_info"]pub struct PanicInfo<'a> { /* fields omitted */ }
A struct providing information about a panic.
PanicInfo structure is passed to a panic hook set by the set_hook function.
use std::panic;
panic::set_hook(Box::new(|panic_info| {
if let Some(s) = panic_info.payload().downcast_ref::<&str>() {
println!("panic occurred: {:?}", s);
} else {
println!("panic occurred");
}
}));
panic!("Normal panic");impl<'a> PanicInfo<'a>[src]
pub fn payload(&self) -> &(dyn Any + 'static + Send)[src]
Returns the payload associated with the panic.
This will commonly, but not always, be a &'static str or String.
use std::panic;
panic::set_hook(Box::new(|panic_info| {
if let Some(s) = panic_info.payload().downcast_ref::<&str>() {
println!("panic occurred: {:?}", s);
} else {
println!("panic occurred");
}
}));
panic!("Normal panic");pub fn message(&self) -> Option<&Arguments<'_>>[src]
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
pub fn location(&self) -> Option<&Location<'_>>[src]
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.
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");impl<'a> !RefUnwindSafe for PanicInfo<'a>impl<'a> !Send for PanicInfo<'a>impl<'a> !Sync for PanicInfo<'a>impl<'a> Unpin for PanicInfo<'a>impl<'a> !UnwindSafe for PanicInfo<'a>impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Borrow<T> for T where
T: ?Sized, [src]
fn borrow(&self) -> &TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
impl<T> ToString for T where
T: Display + ?Sized, [src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
type Error = InfallibleThe type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/panic/struct.PanicInfo.html