Enum OpErrorKind 

pub enum OpErrorKind {
    TypeMismatch,
    MissingSlot,
    NotRegistered,
    ExecutionFailed,
    RemoteFailed,
    Timeout,
    BadInput,
    Cooldown,
    Other,
}

Op invocation failure kind. a stable categorical label consumers match on for retry / report / drop policy decisions without parsing the freeform OpError::detail.

Variants

TypeMismatch

Input slot value didn’t match the expected concrete type (typed downcast failed in a dispatch arm).

MissingSlot

A required slot was absent at dispatch time.

NotRegistered

The dispatched op has no registered handler.

ExecutionFailed

The op handler ran but its work failed (numeric, IO, inventory, etc.). The detail string carries specifics.

RemoteFailed

An off-thread completion handle returned an error (the user’s Contract method’s Error type produced this via ContractResponse::Now(Err) or CompletionHandle::fail).

Timeout

The op’s deadline elapsed before completion landed.

BadInput

Adversarial / malformed input from a peer.

Cooldown

Peer-health / backoff gate held the op (transient retry- eligible failure).

Other

Catch-all for failures that don’t fit a more specific kind. Default for call sites that only carry a detail string.

Trait Implementations

impl Clone for OpErrorKind

fn clone(&self) -> OpErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OpErrorKind

impl Debug for OpErrorKind

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

Formats the value using the given formatter.

impl Default for OpErrorKind

fn default() -> Self

Returns the “default value” for a type.

impl Eq for OpErrorKind

impl PartialEq for OpErrorKind

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for OpErrorKind