Enum CapabilityStatus 

#[non_exhaustive]
pub enum CapabilityStatus {
    Supported,
    Unsupported,
    Partial {
        note: String,
    },
    Unknown,
}

Per-Capability support status reported by a concrete backend.

Consumers distinguish fully-supported from partially-gated (“works only with an extra setup step”) and unsupported (“the trait method returns EngineError::Unavailable today”) via these variants. Unknown is the safe default for pre-RFC-018 backends that never populate a matrix row.

#[non_exhaustive]: future stages may add e.g. SupportedSlow or Deprecated; consumers must carry a wildcard 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.

Supported

Backend fully supports this capability on every call.

Unsupported

Backend does not support this capability; calling the corresponding trait method returns EngineError::Unavailable.

Partial

Backend supports this capability only under specific configuration. The note explains the gating constraint in a human-readable form suitable for UI surfacing.

Fields

note: String

Human-readable hint describing the gating constraint (e.g. “requires with_embedded_scheduler”).

Unknown

Backend has not reported a status for this capability. Consumers should treat as “dispatch and catch” — equivalent to pre-RFC-018 behaviour.

Trait Implementations

impl Clone for CapabilityStatus

fn clone(&self) -> CapabilityStatus

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CapabilityStatus

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

Formats the value using the given formatter.

impl PartialEq for CapabilityStatus

fn eq(&self, other: &CapabilityStatus) -> 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 Eq for CapabilityStatus

impl StructuralPartialEq for CapabilityStatus