Trait ToTopic 

pub trait ToTopic {
    // Required method
    fn to_topic(&self) -> H256;
}

Only items implementing ToTopic may be used as #[indexed] field in crate::ToLog macro usage.

See also (solidity docs on events)[https://docs.soliditylang.org/en/develop/contracts.html#events]

Required Methods

fn to_topic(&self) -> H256

Convert value to topic to be used in ethereum::Log

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ToTopic for H256

fn to_topic(&self) -> H256

impl ToTopic for U256

fn to_topic(&self) -> H256

impl ToTopic for u32

fn to_topic(&self) -> H256

Implementors

impl ToTopic for Address