Enum ListOp 

pub enum ListOp<T: Keyed> {
    UpsertFront(T),
    UpdateInPlace(T),
    Remove(T::Key),
    Clear,
}

A replayable mutation of a PersistedListModel’s backing list, expressed by key so it can be applied to any starting Vec<T> — in particular, the fresh one read off disk at flush time, which may already include a peer process’s concurrent changes.

Variants

UpsertFront(T)

Remove any existing entry with this item’s key, then insert T at the front. This is the “most recently used” operation: re-running it against any starting vector — including one a peer has already mutated — reproduces the same dedupe-and-promote-to-front invariant MruList::add relies on.

UpdateInPlace(T)

Replace the entry with this item’s key in place (no reordering). A no-op if the key is no longer present — e.g. a peer concurrently removed it, in which case that removal wins.

Remove(T::Key)

Remove the entry with this key, if present. No-op otherwise.

Clear

Drop every entry.

Trait Implementations

impl<T: Clone + Keyed> Clone for ListOp<T>

where T::Key: Clone,

fn clone(&self) -> ListOp<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Keyed> Debug for ListOp<T>

where T::Key: Debug,

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

Formats the value using the given formatter.