Enum HistoryEvent 

pub enum HistoryEvent {
    Executed(CommandId),
    Undone(CommandId),
    Redone(CommandId),
    Cleared,
    CheckpointCreated(CheckpointId),
    CheckpointRestored(CheckpointId),
    Trimmed(usize),
}

State change notification

Variants

Executed(CommandId)

Command was executed

Undone(CommandId)

Command was undone

Redone(CommandId)

Command was redone

Cleared

History was cleared

CheckpointCreated(CheckpointId)

Checkpoint was created

CheckpointRestored(CheckpointId)

Restored to checkpoint

Trimmed(usize)

History limit reached, old commands dropped

Trait Implementations

impl Clone for HistoryEvent

fn clone(&self) -> HistoryEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HistoryEvent

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

Formats the value using the given formatter.

impl PartialEq for HistoryEvent

fn eq(&self, other: &HistoryEvent) -> 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 Eq for HistoryEvent

impl StructuralPartialEq for HistoryEvent