Enum diem_types::trusted_state::TrustedStateChange

pub enum TrustedStateChange<'a> {
    Version {
        new_state: TrustedState,
    },
    Epoch {
        new_state: TrustedState,
        latest_epoch_change_li: &'a LedgerInfoWithSignatures,
    },
    NoChange,
}

TrustedStateChange is the result of attempting to ratchet to a new trusted state. In order to reduce redundant error checking, TrustedStateChange also contains references to relevant items used to ratchet us.

Variants

Version

Fields

new_state: TrustedState

We have a newer TrustedState but it’s still in the same epoch, so only the latest trusted version changed.

Epoch

Fields

new_state: TrustedState

latest_epoch_change_li: &'a LedgerInfoWithSignatures

We have a newer TrustedState and there was at least one epoch change, so we have a newer trusted version and a newer trusted validator set.

NoChange

The latest ledger info is at the same version as the trusted state and matches the hash.

Implementations

impl<'a> TrustedStateChange<'a>

pub fn new_state(self) -> Option<TrustedState>

pub fn is_epoch_change(&self) -> bool

pub fn is_no_change(&self) -> bool

Trait Implementations

impl<'a> Clone for TrustedStateChange<'a>

fn clone(&self) -> TrustedStateChange<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for TrustedStateChange<'a>

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

Formats the value using the given formatter.