Enum DiGraphToposortError 

pub enum DiGraphToposortError<N: GraphNodeId> {
    Loop(N),
    Cycle(Vec<Vec<N>>),
}

Error returned when topologically sorting a directed graph fails.

Variants

Loop(N)

A self-loop was detected.

Cycle(Vec<Vec<N>>)

Cycles were detected.

Trait Implementations

impl<N: Debug + GraphNodeId> Debug for DiGraphToposortError<N>

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

Formats the value using the given formatter.

impl<N> Display for DiGraphToposortError<N>

where N: Debug + GraphNodeId, Vec<Vec<N>>: Debug,

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

Formats the value using the given formatter.

impl<N: GraphNodeId> Error for DiGraphToposortError<N>

where Self: Debug + Display,

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.