Enum UndoError 

pub enum UndoError {
    GrowOnly(EventType),
    NoPriorState(String),
}

Reason a compensating event cannot be generated.

Variants

GrowOnly(EventType)

The event type uses a grow-only CRDT and cannot be undone.

NoPriorState(String)

Context from prior events is needed but unavailable or insufficient.

Trait Implementations

impl Clone for UndoError

fn clone(&self) -> UndoError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UndoError

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

Formats the value using the given formatter.

impl Display for UndoError

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

Formats the value using the given formatter.

impl Error for UndoError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for UndoError

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

impl StructuralPartialEq for UndoError