Enum EventBusError 

pub enum EventBusError {
    PublishFailed {
        event_name: &'static str,
        reason: PublishErrorReason,
    },
    HandlerError {
        event_name: String,
        message: String,
    },
    TopicNotFound(String),
    ChannelClosed {
        event_name: String,
    },
    TransportError {
        message: String,
    },
    DowncastFailed {
        event_name: String,
    },
}

Errors that can occur during event bus operations.

Variants

PublishFailed

Failed to publish an event to the bus.

Fields

event_name: &'static str

The event type that failed to publish.

reason: PublishErrorReason

Why the publish failed.

HandlerError

A subscriber handler returned an error.

Fields

event_name: String

The event type being processed.

message: String

Error message from the handler.

TopicNotFound(String)

The requested topic was not found.

ChannelClosed

The broadcast channel has been closed.

Fields

event_name: String

The event type whose channel closed.

TransportError

An error occurred in the underlying transport layer.

Fields

message: String

Transport error message.

DowncastFailed

Failed to downcast a type-erased event back to its concrete type.

Fields

event_name: String

The expected event type.

Trait Implementations

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, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

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.