Enum NodeErrorKind 

#[non_exhaustive]
pub enum NodeErrorKind {
    CircuitOpen,
    Other,
}

Typed class of a node’s failure, for callers that react to a kind of failure rather than report it (PRINCIPLES §6 — never recover a class by grepping a message).

Non-exhaustive: new classes are additive, so matching must carry a _ arm.

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.

CircuitOpen

FaucetError::CircuitOpen — the resilience circuit breaker tripped. faucet schedule delays its next tick by the policy cooldown rather than re-firing immediately at a destination that just tripped.

Other

Any other failure. Deliberately distinct from None, which means the node did not fail at all.

Implementations

impl NodeErrorKind

pub fn classify(error: &FaucetError) -> Self

Classify a node’s failure while the typed error is still intact.

One table, at the boundary where the error is stringified — the whole point of the field is that no consumer has to re-derive this from prose.

Trait Implementations

impl Clone for NodeErrorKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NodeErrorKind

impl Debug for NodeErrorKind

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

Formats the value using the given formatter.

impl Eq for NodeErrorKind

impl PartialEq for NodeErrorKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NodeErrorKind