Enum VerificationError 

#[non_exhaustive]
pub enum VerificationError {
    EmptyValue {
        field: &'static str,
    },
    ReservedUnknownStatus {
        rule_id: String,
    },
    ZeroConfidence {
        rule_id: String,
    },
    ConfirmedNegativeRequiresActive {
        rule_id: String,
    },
    CaseCorrelationRequiresEvidenceOnly {
        rule_id: String,
    },
    WrongStage {
        rule_id: String,
        expected: VerificationStage,
        actual: VerificationStage,
    },
    RuleIdentityConflict {
        id: String,
    },
    SnapshotSubjectMismatch {
        expected: EntityId,
        actual: EntityId,
    },
    UnknownHypothesis {
        hypothesis_id: String,
    },
    MissingContributingEvidence {
        rule_id: String,
    },
    NonMonotonicSnapshot {
        evidence_id: EvidenceId,
    },
    UnknownEvidence {
        evidence_id: EvidenceId,
    },
    EvidenceSubjectMismatch {
        evidence_id: EvidenceId,
        subject: EntityId,
    },
    ConflictingTerminalState {
        hypothesis_id: String,
        current: HypothesisState,
        attempted: HypothesisState,
    },
    Rule(RuleEngineError),
    Outcome(OutcomeError),
    Knowledge(KnowledgeBaseError),
}

Validation and evaluation errors raised by verification components.

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.

EmptyValue

A required case, rule, or explanation value was empty.

Fields

field: &'static str

ReservedUnknownStatus

A rule attempted to explicitly emit the evidence-free fallback status.

Fields

rule_id: String

ZeroConfidence

A conclusive rule was configured with zero confidence.

Fields

rule_id: String

ConfirmedNegativeRequiresActive

A confirmed-negative rule was configured for passive evaluation.

Fields

rule_id: String

CaseCorrelationRequiresEvidenceOnly

Case-correlated evaluation was requested for a non-evidence expression.

Fields

rule_id: String

WrongStage

A verifier was given a rule for the other evidence collection stage.

Fields

rule_id: String

Rule with the incompatible stage.

expected: VerificationStage

Stage owned by the verifier.

actual: VerificationStage

Stage declared by the rule.

RuleIdentityConflict

A rule identity was reused with different semantics.

Fields

id: String

SnapshotSubjectMismatch

The case and snapshot refer to different subjects.

Fields

expected: EntityId

Subject declared by the verification case.

actual: EntityId

Subject captured by the snapshot.

UnknownHypothesis

The case references a hypothesis absent from the snapshot or knowledge base.

Fields

hypothesis_id: String

MissingContributingEvidence

A matched rule relied only on absence or ontology and cited no observation.

Fields

rule_id: String

NonMonotonicSnapshot

An active snapshot omitted evidence that existed before the probe.

Fields

evidence_id: EvidenceId

UnknownEvidence

A persisted outcome referenced evidence absent from the knowledge base.

Fields

evidence_id: EvidenceId

EvidenceSubjectMismatch

Outcome evidence belongs to a different subject.

Fields

evidence_id: EvidenceId

Evidence with incompatible provenance.

subject: EntityId

Subject declared by the outcome.

ConflictingTerminalState

A verifier attempted to reverse an existing terminal conclusion.

Fields

hypothesis_id: String

Hypothesis protected by the terminal transition.

current: HypothesisState

Terminal state already stored.

attempted: HypothesisState

Opposite terminal state requested by the outcome.

Rule(RuleEngineError)

Expression evaluation failed.

Outcome(OutcomeError)

Outcome construction failed.

Knowledge(KnowledgeBaseError)

A hypothesis update conflicted with stored knowledge.

Trait Implementations

impl Debug for VerificationError

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

Formats the value using the given formatter.

impl Display for VerificationError

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

Formats the value using the given formatter.

impl Error for VerificationError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<KnowledgeBaseError> for VerificationError

fn from(source: KnowledgeBaseError) -> Self

Converts to this type from the input type.

impl From<OutcomeError> for VerificationError

fn from(source: OutcomeError) -> Self

Converts to this type from the input type.

impl From<RuleEngineError> for VerificationError

fn from(source: RuleEngineError) -> Self

Converts to this type from the input type.

impl From<VerificationError> for StandardWebVerificationError

fn from(source: VerificationError) -> Self

Converts to this type from the input type.

impl From<VerificationError> for DecisionLoopError

fn from(source: VerificationError) -> Self

Converts to this type from the input type.

impl From<VerificationError> for StandardWebDecisionRuntimeError

fn from(source: VerificationError) -> Self

Converts to this type from the input type.