Enum MarkerKind 

pub enum MarkerKind {
    Posture(Posture),
    ThreadSafety(ThreadSafety),
    Abi(Abi),
    Unchecked,
}

What a marker conveys to sema. Markers fall into independent “namespaces” — at most one posture marker may attach to a type, and (separately) at most one thread-safety marker. Future markers (e.g. capability tags, layout hints) plug in by adding a new variant without disturbing the existing ones.

Variants

Posture(Posture)

ThreadSafety(ThreadSafety)

ADR-0084: thread-safety classification overrides. unsend is the always-safe downgrade; checked_send and checked_sync are user-asserted upgrades the compiler cannot verify on its own.

Abi(Abi)

ADR-0085: ABI markers — C ABI on fns, C layout on structs.

Unchecked

ADR-0088: marks a fn as unchecked — caller must wrap every call in a checked { } block. Replaces the legacy unchecked keyword (ADR-0028) and extends the unchecked surface to methods, interface method signatures, and FFI imports under a single uniform spelling.

Trait Implementations

impl Clone for MarkerKind

fn clone(&self) -> MarkerKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MarkerKind

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

Formats the value using the given formatter.

impl PartialEq for MarkerKind

fn eq(&self, other: &MarkerKind) -> 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 Copy for MarkerKind

impl Eq for MarkerKind

impl StructuralPartialEq for MarkerKind