Enum Seen 

pub enum Seen {
    Pointer(u64, String),
    Nothing,
    Legacy,
}

What a consume’s read of the document established, for the barrier’s no-change fast path (which must not pay for the same read twice).

Variants

Pointer(u64, String)

The pointer at this (seq, etag).

Nothing

Neither the pointer nor the legacy object exists: nothing has ever been published here. Both reads happened in this pass.

Legacy

A legacy single-object document (no pointer); the fast path asks.

Trait Implementations

impl Clone for Seen

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Seen

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

Formats the value using the given formatter.

impl Eq for Seen

impl PartialEq for Seen

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Seen