Trait holochain_types::chain::ChainItem

pub trait ChainItem: Clone + PartialEq + Eq + Debug {
    type Hash: Clone + PartialEq + Eq + Ord + Hash + Debug + Send + Sync + Into<ActionHash>;

    fn seq(&self) -> u32;
    fn get_hash(&self) -> &Self::Hash;
    fn prev_hash(&self) -> Option<&Self::Hash>;
}

Abstraction over an item in a chain.

Required Associated Types

type Hash: Clone + PartialEq + Eq + Ord + Hash + Debug + Send + Sync + Into<ActionHash>

The type used to represent a hash of this item

Required Methods

fn seq(&self) -> u32

The sequence in the chain

fn get_hash(&self) -> &Self::Hash

The hash of this item

fn prev_hash(&self) -> Option<&Self::Hash>

The hash of the previous item

Implementors

impl ChainItem for TestChainItem

type Hash = TestChainHash

impl ChainItem for ActionHashed

type Hash = HoloHash<Action>

impl ChainItem for SignedActionHashed

type Hash = HoloHash<Action>