Struct Failure 

pub struct Failure { /* private fields */ }

Type-erased container holding error information.

This allows storing and passing error metadata without exposing the concrete type.

Implementations

impl Failure

pub fn tag(&self) -> Option<&Bytes>

Returns an optional tag associated with this error.

pub fn service(&self) -> Option<&'static str>

Returns the name of the responsible service, if applicable.

pub fn signature(&self) -> &'static str

Returns a stable identifier for the specific error classification.

pub fn backtrace(&self) -> Option<&Backtrace>

Returns a backtrace for debugging purposes, if available.

pub fn get_item<T: 'static>(&self) -> Option<&T>

Returns a reference to a previously stored value of type T from this error.

Trait Implementations

impl AsError for Failure

type Target = FailureDiagnostic

fn as_diag(&self) -> &FailureDiagnostic

impl Clone for Failure

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Failure

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Failure

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Failure

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl<E> From<&Error<E>> for Failure

where E: ErrorDiagnostic,

fn from(err: &Error<E>) -> Self

Converts to this type from the input type.

impl<E> From<Error<E>> for Failure

where E: ErrorDiagnostic,

fn from(err: Error<E>) -> Self

Converts to this type from the input type.

impl IntoFailure for Failure

fn fail(self) -> Failure