Enum Provenance 

#[repr(u8)]
pub enum Provenance {
    Bal = 0,
    Proof = 1,
    Imported = 2,
    Unverified = 3,
}

Where a stored value came from. Stored as the first byte of every value so provenance can never drift from the data.

Variants

Bal = 0

From a BAL verified against header.block_access_list_hash.

Proof = 1

From eth_getProof verified against header.state_root.

Imported = 2

Imported, unverified. Only ever written by an explicit import command.

Unverified = 3

From a BAL that could not be checked because the header carried no hash. Only written with allow_unverified; never mistaken for Bal.

Implementations

impl Provenance

pub fn from_byte(b: u8) -> Option<Self>

Inverse of self as u8; None for tags this build does not know.

pub fn is_verified(self) -> bool

true for values anchored to a block header (BAL hash or state root).

Trait Implementations

impl Clone for Provenance

fn clone(&self) -> Provenance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Provenance

impl Debug for Provenance

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

Formats the value using the given formatter.

impl Eq for Provenance

impl PartialEq for Provenance

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Provenance