Enum EventBusError 

pub enum EventBusError {
    Stopped,
    ShutdownTimeout,
    InvalidConfig(ConfigError),
    MiddlewareRejected(String),
    MissingDependency(String),
}

Errors returned by EventBus publish and shutdown operations.

Variants

Stopped

The bus has been shut down.

Returned by all publish, subscribe, unsubscribe, and stats calls made after EventBus::shutdown has been invoked.

ShutdownTimeout

Shutdown timed out before all in-flight async tasks completed.

Remaining tasks were aborted. Returned by EventBus::shutdown when a shutdown_timeout was configured and elapsed.

InvalidConfig(ConfigError)

The builder configuration is invalid.

MiddlewareRejected(String)

A middleware rejected the event before it reached any listener.

MissingDependency(String)

A required dependency was not found in the Deps container.

The contained string is the fully-qualified type name of the missing dependency, suitable for diagnostic messages.

Returned by Deps::get_required and by EventBusBuilder::build when a registered handler cannot resolve one of its dependencies.

Trait Implementations

impl Clone for EventBusError

fn clone(&self) -> EventBusError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EventBusError

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

Formats the value using the given formatter.

impl Display for EventBusError

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

Formats the value using the given formatter.

impl Eq for EventBusError

impl Error for EventBusError

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 From<ConfigError> for EventBusError

fn from(err: ConfigError) -> Self

Converts to this type from the input type.

impl PartialEq for EventBusError

fn eq(&self, other: &EventBusError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for EventBusError