Enum CaptureTarget 

pub enum CaptureTarget {
    Finalized,
    Lag(u64),
    Latest,
}

Determines which block number is used as the capture target in advance_to_latest.

Default is Latest (no lag) — existing L2 consumers are unchanged. Mainnet callers should opt in to Finalized for reorg-proof capture.

Variants

Finalized

Ethereum finalized block (≈ 2 epochs ≈ 64 blocks ≈ 13 min behind tip). Cryptographically final — cannot reorg without 1/3 of staked ETH slashed. Opt-in; mainnet-only. L2 finalized tracks L1 finality and lags too far.

Lag(u64)

Fixed number of blocks behind the current chain tip. Saturates at 0.

Latest

Current chain tip. No lag; suitable for L2s with instant-finality sequencers.

Trait Implementations

impl Clone for CaptureTarget

fn clone(&self) -> CaptureTarget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CaptureTarget

impl Debug for CaptureTarget

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

Formats the value using the given formatter.

impl Default for CaptureTarget

fn default() -> CaptureTarget

Returns the “default value” for a type.

impl PartialEq for CaptureTarget

fn eq(&self, other: &CaptureTarget) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CaptureTarget