Struct Event 

pub struct Event {
    pub key: U256,
    pub value: U256,
    pub is_first: bool,
    pub shard_id: u8,
    pub tx_number: u16,
}

Event emitted by EraVM.

vm2 records events only from the EventWriter system contract (0x800d), the sole contract that runs the Event opcode in practice. zk_evm instead records events from any emitter (keeping the emitter address) and filters down to the EventWriter later. Both yield the same event set, so there is no address field here — the originating contract is encoded in the event payload, as in zk_evm.

Fields

key: U256

Event key.

value: U256

Event value.

is_first: bool

Is this event first in a chain of events?

shard_id: u8

Shard identifier (currently, always set to 0).

tx_number: u16

0-based index of a transaction that has emitted this event.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Event

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Event

fn eq(&self, other: &Event) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Event

impl StructuralPartialEq for Event