Enum EmbeddingErrorKind 

pub enum EmbeddingErrorKind {
    OAuth,
    Quota,
    SlotExhausted,
    BackendMismatch,
    ZeroDimension,
    Unknown,
}

GAP-004 (v1.0.88): typed classifier for embedding error messages.

Decomposes the legacy AppError::Embedding(String) payload into a small enum so the call sites can branch on the cause instead of repeating msg.contains(...) literals. The classification is purely lexical (case-insensitive substring match on the error message) — no I/O, no retries, no telemetry, deterministic and safe under #[serial_test::serial(env)].

6 variants cover the 5 known discriminators from v1.0.85 (ADR-0043) plus an Unknown fallback for messages that do not match any marker.

Variants

OAuth

OAuth token expired or absent; no backend can authenticate.

Quota

OAuth usage quota exhausted on the named backend.

SlotExhausted

LLM slot semaphore exhausted after the backoff window.

BackendMismatch

User-requested backend differs from the one that actually executed.

ZeroDimension

Embedding returned a zero-dimensional vector (structural bug).

Unknown

Message did not match any of the 5 markers above.

Implementations

impl EmbeddingErrorKind

pub fn classify(msg: &str) -> Self

Classify an embedding error message into a typed kind.

Order of checks matters: OAuth is matched before Quota because both substrings can co-occur in the same message. SlotExhausted is checked before Quota because the slot-sema path is more specific (the LLM never even tried to authenticate). The checks are case-insensitive so OAuth and oauth both classify to EmbeddingErrorKind::OAuth.

pub fn code(&self) -> &'static str

Stable, machine-friendly discriminator code (lowercase, kebab-safe).

Trait Implementations

impl Clone for EmbeddingErrorKind

fn clone(&self) -> EmbeddingErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EmbeddingErrorKind

impl Debug for EmbeddingErrorKind

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

Formats the value using the given formatter.

impl Display for EmbeddingErrorKind

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

Formats the value using the given formatter.

impl Eq for EmbeddingErrorKind

impl PartialEq for EmbeddingErrorKind

fn eq(&self, other: &EmbeddingErrorKind) -> 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 EmbeddingErrorKind