Enum ExecutionError 

#[non_exhaustive]
pub enum ExecutionError<E> {
    Operation {
        source: E,
        context: Box<ErrorContext>,
    },
    AttemptTimeout {
        context: Box<ErrorContext>,
    },
    TotalTimeout {
        context: Box<ErrorContext>,
    },
    CircuitOpen {
        context: Box<ErrorContext>,
    },
    ConcurrencyRejected {
        context: Box<ErrorContext>,
    },
    RetryBudgetExhausted {
        context: Box<ErrorContext>,
    },
}

Why an execution failed. Boxed context keeps the hot Result small.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Operation

Fields

source: E

context: Box<ErrorContext>

AttemptTimeout

Fields

context: Box<ErrorContext>

TotalTimeout

Fields

context: Box<ErrorContext>

CircuitOpen

Fields

context: Box<ErrorContext>

ConcurrencyRejected

Fields

context: Box<ErrorContext>

RetryBudgetExhausted

Fields

context: Box<ErrorContext>

Implementations

impl<E> ExecutionError<E>

pub fn context(&self) -> &ErrorContext

Diagnostic context (attempts, elapsed, last delay, breaker state).

pub fn into_inner(self) -> Option<E>

Recover the underlying operation error, if this was an operation failure.

pub fn is_timeout(&self) -> bool

pub fn is_circuit_open(&self) -> bool

pub fn is_rejected(&self) -> bool

pub fn is_exhausted(&self) -> bool

Trait Implementations

impl<E: Debug> Debug for ExecutionError<E>

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

Formats the value using the given formatter.

impl<E: Display> Display for ExecutionError<E>

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

Formats the value using the given formatter.

impl<E: Error + 'static> Error for ExecutionError<E>

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.