Crate casper_event_standard

The smart contract level events for Casper.

use casper_event_standard::Event;

// Turn a struct into an event.
#[derive(Event)]
struct Transfer {
   amount: U256,
   from: Key,
   to: Key
}

// Register event schemas.
fn init_events() {
    let schemas = Schemas::new()
        .with::<Transfer>();
    casper_event_standard::init(schemas);
}

// Emit event.
fn emit_transfer(transfer: Transfer) {
    casper_event_standard::emit(transfer);
}

Structs

• CLType2
  A wrapper on top of CLType.
• Schema
  The information about a single event.
• Schemas
  The information about multiple events.

Constants

• CES_VERSION
  The version of CES implemented in this library.
• CES_VERSION_KEY
  The key under which the ces version is stored.
• EVENTS_DICT
  The key under which the events are stored.
• EVENTS_LENGTH
  The key under which the events length is stored.
• EVENTS_SCHEMA
  The key under which the event schemas are stored.

Traits

• EventInstance
  Helper trait, used for the schema generation.

Functions

• emit
  Emits an event.
• emit_bytes
  Emits an event. Don’t convert to bytes.
• init
  Initializes events-releated named keys and stores Schemas.
• try_full_name_from_bytes
  Extracts full name of the event including event_ prefix.
• validate_type
  Make sure the type of a value is not CLType::Any.

Derive Macros

• Event
  Macro that derives CLTyped, FromBytes, ToBytes and EventInstance.