Struct CasError 

pub struct CasError<T, E> { /* private fields */ }

Terminal CAS error returned by crate::CasExecutor.

Implementations

impl<T, E> CasError<T, E>

pub fn kind(&self) -> CasErrorKind

Returns the classified CAS error kind.

Returns

High-level CAS error kind derived from the retry-layer reason and last attempt failure.

pub fn reason(&self) -> RetryErrorReason

Returns the retry-layer terminal reason.

Returns

Underlying RetryErrorReason.

pub fn context(&self) -> CasContext

Returns the terminal CAS context.

Returns

Copied CAS context captured when execution stopped.

pub fn attempts(&self) -> u32

Returns the number of attempts that were executed.

Returns

One-based attempt count.

pub fn last_failure(&self) -> Option<&CasAttemptFailure<T, E>>

Returns the last CAS attempt failure when one exists.

Returns

Some(&CasAttemptFailure<T, E>) when at least one attempt failed.

pub fn current(&self) -> Option<&Arc<T>>

Returns the current state associated with the last failure.

Returns

Some(&Arc<T>) when the terminal error preserved a current state.

pub fn error(&self) -> Option<&E>

Returns the business error associated with the last failure.

Returns

Some(&E) for retryable or aborting business failures.

Trait Implementations

impl<T: Clone, E: Clone> Clone for CasError<T, E>

fn clone(&self) -> CasError<T, E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T, E> Debug for CasError<T, E>

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

Formats the CAS error for debugging without requiring T: Debug.

Parameters

• f: Formatter provided by the standard formatting machinery.

Returns

fmt::Result from the formatter.

Errors

Returns a formatting error if the formatter fails.

impl<T, E> Display for CasError<T, E>

where E: Display,

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

Formats the terminal CAS error.

Parameters

• f: Formatter provided by the standard formatting machinery.

Returns

fmt::Result from the formatter.

Errors

Returns a formatting error if the formatter fails.

impl<T, E> Error for CasError<T, E>

where E: Error + 'static,

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

Returns the source business error when one exists.

Returns

Some(&dyn Error) when the terminal CAS failure preserved a business error implementing std::error::Error.

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.