Struct Failed 

pub struct Failed<S, E> {
    pub session: S,
    pub error: E,
}

A failed state transition.

session is the session in its original state (the transition failed, so the state did not change). error is the reason the transition failed. Used by fallible transitions so callers can retry without rebuilding from scratch.

Fields

session: S

The session, still in its pre-transition state.

error: E

Why the transition failed.

Trait Implementations

impl<S: Debug, E: Debug> Debug for Failed<S, E>

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

Formats the value using the given formatter.

impl<S: Debug, E: Error + 'static> Display for Failed<S, E>

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

Formats the value using the given formatter.

impl<S: Debug, E: Error + 'static> Error for Failed<S, 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.