Hardforks

Hardforks are consensus layer types of the OP Stack.

kona-hardforks most directly exports the Hardforks type that provides the network upgrade transactions for OP Stack hardforks including the following.

• Ecotone
• Fjord
• Isthmus

Each hardfork has its own type in kona-hardforks that exposes the network upgrade transactions for that hardfork.

For example, the Ecotone type can be used to retrieve the Ecotone network upgrade transactions through its txs() -> impl Iterator<Bytes> method.

#![allow(unused)]
fn main() {
// Notice, the `Hardfork` trait must be imported in order to
// provide the `txs()` method implemented for the hardfork type.
use kona_hardforks::{Hardfork, Ecotone};
let ecotone_upgrade_txs = Ecotone.txs();
assert_eq!(ecotone_upgrade_txs.collect::<Vec<_>>().len(), 6);
}

Conveniently, the Hardforks type exposes each hardfork type as a field that can be directly referenced without needing to import all the different hardforks.

#![allow(unused)]
fn main() {
use kona_hardforks::{Hardfork, Hardforks};
let ecotone_upgrade_txs = Hardforks::ECOTONE.txs();
assert_eq!(ecotone_upgrade_txs.collect::<Vec<_>>().len(), 6);
}