Struct EventBus 

pub struct EventBus { /* private fields */ }

Synchronous event bus: stores handlers keyed by EventKind and a history of all published events.

Implementations

impl EventBus

pub fn new() -> Self

Create a new, empty event bus.

pub fn subscribe(&mut self, kind: EventKind, handler: EventHandler)

Register a handler for a specific event kind.

pub fn publish(&mut self, event: Event)

Publish an event: invoke matching handlers then append to history.

pub fn history(&self) -> &[Event]

Access the full event history (oldest first).

pub fn clear_history(&mut self)

Clear the event history.

pub fn handler_count(&self) -> usize

Total number of registered handlers.

pub fn event_count(&self) -> usize

Total number of events published so far.

Trait Implementations

impl Default for EventBus

fn default() -> Self

Returns the “default value” for a type.