Enum EvidenceOrigin 

#[non_exhaustive]
pub enum EvidenceOrigin {
    Direct,
    Derived(EvidenceDerivation),
}

Whether an evidence record was directly observed or derived from other records.

Direct is the default and the historical meaning of every evidence record. Derived carries exact lineage. This distinction is authoritative in the live knowledge store; it is intentionally not part of the serialized Evidence wire in this revision (see Evidence).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Direct

A first-hand observation with no derivation lineage.

Derived(EvidenceDerivation)

A record computed from exact parent evidence record(s).

Implementations

impl EvidenceOrigin

pub fn is_direct(&self) -> bool

Returns whether this is a direct (non-derived) observation.

pub fn derivation(&self) -> Option<&EvidenceDerivation>

Returns the derivation lineage when this record is derived.

Trait Implementations

impl Clone for EvidenceOrigin

fn clone(&self) -> EvidenceOrigin

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EvidenceOrigin

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

Formats the value using the given formatter.

impl Default for EvidenceOrigin

fn default() -> EvidenceOrigin

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for EvidenceOrigin

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for EvidenceOrigin

impl PartialEq for EvidenceOrigin

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for EvidenceOrigin

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 EvidenceOrigin