Struct PromotionGate 

pub struct PromotionGate;

The champion-challenger promotion gate. Pure — evaluate has no I/O and no clock; the caller stamps id + decided_at and writes the audit row.

Implementations

impl PromotionGate

pub fn evaluate( &self, config: &PromotionGateConfig, metrics: &[(String, f64)], approval_present: bool, ) -> PolicyDecision

Evaluate a challenger against the gate config + measured metrics.

Returns a PolicyDecision — the same deny-by-default primitive every gate emits — so the caller dispatches it through the existing audit + approval path with no special-casing.

Decision table:

• empty thresholds → deny (no evidence ⇒ no auto-promotion).
• any threshold fails (or its metric is missing) → deny.
• all thresholds pass, approval required but absent → requires_approval.
• all thresholds pass, (approval not required, or present) → allow.

pub fn decide( &self, id: impl Into<String>, agent_id: impl Into<String>, champion_version_id: Option<String>, challenger_version_id: impl Into<String>, config: &PromotionGateConfig, metrics: &[(String, f64)], approval_present: bool, decision: &PolicyDecision, decided_at: DateTime<Utc>, ) -> PromotionDecision

Build the full structured PromotionDecision audit record from an evaluation. The decision passed in is the output of Self::evaluate — the caller threads it so the audit record and the dispatched policy decision can never disagree.

Trait Implementations

impl Clone for PromotionGate

fn clone(&self) -> PromotionGate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PromotionGate

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

Formats the value using the given formatter.

impl Default for PromotionGate

fn default() -> PromotionGate

Returns the “default value” for a type.