Location

Struct Location 

1.41.0 · Source
pub struct Location<'a> { /* private fields */ }
Expand description

A struct containing information about the location of a panic.

This structure is created by PanicHookInfo::location() and PanicInfo::location().

§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");

§Comparisons

Comparisons for equality and ordering are made in file, line, then column priority. Files are compared as strings, not Path, which could be unexpected. See [Location::file]’s documentation for more discussion.

Implementations§

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impl<'a> Location<'a>

1.10.0 (const: 1.79.0) · Source

pub const fn line(&self) -> u32

Returns the line number from which the panic originated.

§Examples
use std::panic;

panic::set_hook(Box::new(|panic_info| {
    if let Some(location) = panic_info.location() {
        println!("panic occurred at line {}", location.line());
    } else {
        println!("panic occurred but can't get location information...");
    }
}));

panic!("Normal panic");
1.25.0 (const: 1.79.0) · Source

pub const fn column(&self) -> u32

Returns the column from which the panic originated.

§Examples
use std::panic;

panic::set_hook(Box::new(|panic_info| {
    if let Some(location) = panic_info.location() {
        println!("panic occurred at column {}", location.column());
    } else {
        println!("panic occurred but can't get location information...");
    }
}));

panic!("Normal panic");

Trait Implementations§

1.10.0 · Source§

impl Send for Location<'_>

1.10.0 · Source§

impl Sync for Location<'_>

Auto Trait Implementations§

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impl<'a> Freeze for Location<'a>

Blanket Implementations§

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.