Enum GraphError 

pub enum GraphError {
    NodeNotFound(NodeId),
    EdgeNotFound(EdgeId),
    InvalidOperation(String),
    CycleDetected,
    NotConnected,
    NegativeWeightCycle,
}

Error types for graph operations

Variants

NodeNotFound(NodeId)

Node not found

EdgeNotFound(EdgeId)

Edge not found

InvalidOperation(String)

Invalid operation

CycleDetected

Cycle detected (for operations that require acyclic graphs)

NotConnected

Graph is not connected

NegativeWeightCycle

Negative weight cycle detected

Trait Implementations

impl Clone for GraphError

fn clone(&self) -> GraphError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphError

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

Formats the value using the given formatter.

impl Display for GraphError

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

Formats the value using the given formatter.

impl Error for GraphError

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.