Trait Event

Source

pub trait Event: Serialize + for<'ed> TryFrom<&'ed EventData, Error = TryFromEventError> {
    const TAG: &'static str;
    const SELECTOR: Selector = _;

    // Provided method
    fn upcast(&self) -> Result<EventData, CborValueError> { ... }
}

Expand description

Trait defining the interface for event types in the system.

This trait must be implemented by all event types in the system. It provides:

A unique tag for event identification
Serialization and deserialization capabilities
Type conversion between different event representations

§Examples

use ioevent::prelude::*;
use serde::{Serialize, Deserialize};

#[derive(Event, Serialize, Deserialize)]
struct UserEvent {
    user_id: u64,
    action: String,
}