Struct EdgeEvidence 

pub struct EdgeEvidence {
    pub v: u8,
    pub grade: EvidenceGrade,
    pub by: Vec<Contribution>,
}

Serialized into Edge.metadata. Deliberately small and deterministic: no timestamps, no source text, no paths beyond the edge’s own endpoints.

Several producers can derive the same edge; each keeps its own contribution, so a recompute or withdrawal by one never erases or downgrades what another one established.

Fields

v: u8

Schema version of this record.

grade: EvidenceGrade

Strongest contribution — what ranking and impact weight by.

by: Vec<Contribution>

Every producer currently deriving the edge, sorted by origin.

Implementations

impl EdgeEvidence

pub const VERSION: u8 = 1

pub fn new( grade: EvidenceGrade, origin: EvidenceOrigin, backend: Option<String>, sites: u32, ) -> Self

Evidence from a single producer.

pub fn primary(&self) -> Option<&Contribution>

The strongest contribution (lowest origin on ties) — the one whose backend and site count describe the edge.

pub fn has(&self, origin: EvidenceOrigin) -> bool

pub fn merge(existing: Option<Self>, incoming: Self) -> Self

incoming replaces the contributions of its own origins on top of existing; every other producer’s contribution is kept as is. A producer recomputing its edge is authoritative for its own part only.

pub fn without(self, origin: EvidenceOrigin) -> Option<Self>

Withdraws origin’s contribution. None when no producer derives the edge any more (the edge should be deleted).

pub fn to_metadata(&self) -> String

pub fn from_metadata(metadata: Option<&str>) -> Option<Self>

Parses edge metadata written by this module; anything else (legacy edges, other producers’ metadata) yields None.

pub fn weight_factor_of(metadata: Option<&str>) -> f64

Ranking factor for an edge’s metadata. Edges without evidence (legacy, non-call producers) keep their full kind weight — unchanged behaviour.

Trait Implementations

impl Clone for EdgeEvidence

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 EdgeEvidence

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EdgeEvidence

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for EdgeEvidence

impl PartialEq for EdgeEvidence

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for EdgeEvidence

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 EdgeEvidence