Trait Event

pub trait Event: Sized + Encode {
    // Required methods
    fn module_name(&self) -> &str;
    fn code(&self) -> u32;

    // Provided method
    fn into_raw(self) -> Event { ... }
}

An event emitted by the contract.

This trait can be derived:

#[derive(Clone, Debug, cbor::Encode, Event)]
#[cbor(untagged)]
#[sdk_event(autonumber)]
enum MyEvent {
   Greeting(String),      // autonumbered to 0
   #[sdk_event(code = 2)] // manually numbered to 2 (`code` is required if not autonumbering)
   DontPanic,
   Salutation {           // autonumbered to 1
       plural: bool,
   }
}

Required Methods

fn module_name(&self) -> &str

Name of the module that emitted the event.

fn code(&self) -> u32

Code uniquely identifying the event.

Provided Methods

fn into_raw(self) -> Event

Converts an event into the raw event type that can be emitted from the contract.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Event for Event

fn module_name(&self) -> &str

fn code(&self) -> u32

fn into_raw(self) -> Event

Implementors