Struct ChainTip 

pub struct ChainTip {
    pub height: Option<u64>,
    pub hash: [u8; 32],
}

Chain tip derived by scanning the collection.

Fields

height: Option<u64>

block_height of the highest block. None if the collection has no rows yet (pre-genesis; callers should use GENESIS_PREV_HASH for prev_hash and 0 for block_height).

hash: [u8; 32]

Implementations

impl ChainTip

pub fn empty() -> Self

pub fn next(&self) -> ([u8; 32], u64)

Returns (prev_hash, next_height) to use when appending a new block.

Trait Implementations

impl Clone for ChainTip

fn clone(&self) -> ChainTip

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChainTip

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

Formats the value using the given formatter.

impl PartialEq for ChainTip

fn eq(&self, other: &ChainTip) -> 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 Eq for ChainTip

impl StructuralPartialEq for ChainTip