Enum KernelErrorCode 

pub enum KernelErrorCode {
    Handshake,
    UnsupportedVersion,
    Capability,
    Validation,
    DuplicateKey,
    FrameSize,
    Sealed,
    AlreadyActive,
    NotFound,
    StaleVersion,
    IllegalEdge,
    Authority,
    IdempotencyConflict,
    Fenced,
    Overloaded,
    SlowConsumer,
    Storage,
    Schema,
    Privilege,
    BlobIntegrity,
    BlobTombstoned,
}

The stable refusal set. Errors are VALUES in this contract: a client branches on the code and never parses a message.

Variants

Handshake

The handshake did not complete: no hello, a late hello, or a non-hello first frame.

UnsupportedVersion

Major version mismatch.

Capability

A capability was malformed, over the count/length bound, or required and not granted.

Validation

The request did not satisfy the contract’s own shape rules.

DuplicateKey

A duplicate JSON key at any nesting depth.

FrameSize

body_length was zero, over the bound, or the kind byte unknown.

Sealed

The kernel is sealed and this request is not on the sealed allowlist.

AlreadyActive

The kernel is already active and this request is activation-only.

NotFound

StaleVersion

CAS refusal; the actual version travels in the error detail.

IllegalEdge

The requested edge is not in the state machine’s table.

Authority

The actor is not permitted; the kernel raised an attention item or denied outright.

IdempotencyConflict

The idempotency key was reused with different canonical request content.

Fenced

A stale writer epoch or fence token was presented.

Overloaded

Bounded queues are full.

SlowConsumer

A subscriber fell too far behind and was disconnected.

Storage

Backend failure, opaque to the contract.

Schema

An unreadable schema_version with no upcaster.

Privilege

The runtime database role holds privileges the kernel refuses to run with, or lacks ones it needs.

BlobIntegrity

A blob failed authentication, digest, or length verification.

BlobTombstoned

The blob was crypto-shredded; its reads fail permanently.

Implementations

impl KernelErrorCode

pub const ALL: &'static [Self]

Every code, in declaration order.

pub const fn as_str(self) -> &'static str

The wire value — identical to what serde emits.

Trait Implementations

impl Clone for KernelErrorCode

fn clone(&self) -> KernelErrorCode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KernelErrorCode

impl Debug for KernelErrorCode

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for KernelErrorCode

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for KernelErrorCode

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

Formats the value using the given formatter.

impl Eq for KernelErrorCode

impl Hash for KernelErrorCode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for KernelErrorCode

fn cmp(&self, other: &KernelErrorCode) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for KernelErrorCode

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for KernelErrorCode

fn partial_cmp(&self, other: &KernelErrorCode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for KernelErrorCode

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for KernelErrorCode

impl Type for KernelErrorCode

fn definition(types: &mut Types) -> DataType

Returns a DataType that represents Self.