Enum ClassMatchOutcome 

pub enum ClassMatchOutcome {
    Matched(ClassMatchEvidence),
    NotMatched(ClassMatchEvidence),
    InvalidClassGraph {
        reason: String,
    },
    BudgetExhausted {
        limit: usize,
        performed_work: usize,
    },
    PolicyFailure {
        reason: String,
        evidence: ClassMatchEvidence,
    },
}

Exact outcome of bounded handler class selection.

Variants

Matched(ClassMatchEvidence)

Both subclass evidence and the language predicate accepted the candidate.

NotMatched(ClassMatchEvidence)

Subclass evidence rejected the candidate, or language policy narrowed it.

InvalidClassGraph

The declared parent relation is invalid.

Fields

reason: String

Provider explanation of the invalid graph.

BudgetExhausted

The finite work allowance was exhausted before an answer existed.

Fields

limit: usize

Configured work ceiling.

performed_work: usize

Work completed before exhaustion.

PolicyFailure

The caller-supplied language predicate could not decide a positive candidate.

Fields

reason: String

Stable policy error text.

evidence: ClassMatchEvidence

Positive subclass evidence presented to the policy.

Trait Implementations

impl Clone for ClassMatchOutcome

fn clone(&self) -> ClassMatchOutcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClassMatchOutcome

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

Formats the value using the given formatter.

impl Eq for ClassMatchOutcome

impl PartialEq for ClassMatchOutcome

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ClassMatchOutcome