Enum TraversalError 

#[non_exhaustive]
pub enum TraversalError {
    NodeOutOfRange,
    NodeNotQueued,
    NodeAlreadyVisited,
    QueueNotEmpty,
}

A disabled traversal-engine transition.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NodeOutOfRange

The node is outside the configured universe.

NodeNotQueued

The node is not queued.

NodeAlreadyVisited

The node has already been visited.

QueueNotEmpty

Termination is enabled only when the queue is empty.

Trait Implementations

impl Clone for TraversalError

fn clone(&self) -> TraversalError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TraversalError

impl Debug for TraversalError

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

Formats the value using the given formatter.

impl Display for TraversalError

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

Formats the value using the given formatter.

impl Eq for TraversalError

impl Error for TraversalError

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 TraversalError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TraversalError