Enum HandleKind 

#[non_exhaustive]
pub enum HandleKind {
    Fresh,
    Resumed,
    Suspended,
    Reclaimed,
}

Lifecycle kind carried inside a Handle. Backends validate kind on entry to each op and return EngineError::State on mismatch.

Replaces round-1’s compile-time Handle / ResumeHandle / SuspendToken type split (RFC-012 §4.1).

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.

Fresh

Fresh claim — returned by claim / claim_from_grant.

Resumed

Resumed from resume grant — returned by claim_from_resume_grant (renamed from claim_from_reclaim per RFC-024 PR-B+C).

Suspended

Suspended — returned by suspend. Terminal for the lease; resumption mints a new Handle via claim_from_resume_grant.

Reclaimed

Reclaimed from a lease-reclaim grant — returned by the new reclaim_execution trait method (RFC-024). Distinct from HandleKind::Resumed (suspend/resume path) and HandleKind::Fresh (first claim). The backing lifecycle creates a new attempt row and bumps the reclaim counter.

Trait Implementations

impl Clone for HandleKind

fn clone(&self) -> HandleKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HandleKind

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HandleKind

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for HandleKind

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 PartialEq for HandleKind

fn eq(&self, other: &HandleKind) -> 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 Serialize for HandleKind

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for HandleKind

impl Eq for HandleKind

impl StructuralPartialEq for HandleKind