Struct HoldoutLedger 

pub struct HoldoutLedger {
    pub schema: String,
    pub dataset: DatasetId,
    pub entries: Vec<LedgerEntry>,
}

Fields

schema: String

dataset: DatasetId

entries: Vec<LedgerEntry>

Implementations

impl HoldoutLedger

pub fn new(dataset: DatasetId) -> HoldoutLedger

The explicit new ledger of 3.7.3.

pub fn verify(&self, dataset: &DatasetId) -> Result<(), LedgerError>

The schema, the dataset, the bound, every entry’s shape and the chain.

pub fn head(&self) -> Result<Option<ContentDigest>, LedgerError>

The chain digest of the last entry; none for an empty ledger.

pub fn append( &self, dataset: &DatasetId, a: Append, ) -> Result<(HoldoutLedger, HeldOutRecord), LedgerError>

Verify this ledger and return a new one with one entry appended, with the counts and heads a repeat report records. self is never modified.

Trait Implementations

impl Clone for HoldoutLedger

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HoldoutLedger

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HoldoutLedger

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Document for HoldoutLedger

const SCHEMA: &'static str = HOLDOUT_LEDGER

The schema string this document carries (spec 002, 3.2.1).

const LIMITS: ParseLimits = REPLAY_V1

The limit set its bytes are scanned against (spec 002, 3.2.5).

fn schema(&self) -> &str

The value of the document’s own schema field.

fn parse(bytes: &[u8]) -> Result<Self, DocumentError>

Scan, deserialize and check the schema string.

fn canonical(&self) -> Result<Vec<u8>, CanonicalError>

The canonical bytes (spec 002, 3.3.1).

fn record_canonical(&self) -> Result<Vec<u8>, CanonicalError>

where Self: PartialEq,

The record canonical bytes (spec 004, 5.6): the canonical bytes, with finite fractional numbers written in shortest round-trip form.

fn record_digest(&self) -> Result<ContentDigest, CanonicalError>

where Self: PartialEq,

sha256(SCHEMA || 0x00 || record canonical bytes) (spec 004, 3.1.6). Equal to the identity of an identified document.

impl Eq for HoldoutLedger

impl Identified for HoldoutLedger

type Id = ContentDigest

fn id(&self) -> Result<Self::Id, CanonicalError>

sha256(SCHEMA || 0x00 || canonical bytes) (spec 002, 3.3.2).

impl PartialEq for HoldoutLedger

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for HoldoutLedger

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for HoldoutLedger