Enum PointerState 

pub enum PointerState {
    Absent,
    Present {
        rank: Option<u64>,
    },
}

What the publisher observed at the pointer key before deciding.

Variants

Absent

No pointer object exists — the slot is open (create-only publish).

Present

A pointer object exists. rank is its cursor’s rank, or None when the object is unparseable — a corrupt pointer MUST be replaceable, or one bad write wedges publishing forever (the same rule as the export lease’s corrupt-steal).

Fields

rank: Option<u64>

Rank of the existing pointer’s cursor; None if unparseable.

Trait Implementations

impl Clone for PointerState

fn clone(&self) -> PointerState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PointerState

impl Debug for PointerState

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

Formats the value using the given formatter.

impl Eq for PointerState

impl PartialEq for PointerState

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