Enum BoundedGraphError 

pub enum BoundedGraphError<Ix: IndexType = DefaultIx> {
    EdgeRejected {
        source: NodeIndex<Ix>,
        target: NodeIndex<Ix>,
        source_rejected: bool,
        target_rejected: bool,
    },
    NodeNotFound {
        source: Option<NodeIndex<Ix>>,
        target: Option<NodeIndex<Ix>>,
    },
}

Error type for bounded graph operations.

Variants

EdgeRejected

One or both nodes rejected the edge.

The node indices indicate which nodes were involved in the rejection. If source_rejected is true, the source node rejected adding the outgoing edge. If target_rejected is true, the target node rejected adding the incoming edge.

Fields

source: NodeIndex<Ix>

target: NodeIndex<Ix>

source_rejected: bool

target_rejected: bool

NodeNotFound

One or both nodes do not exist in the graph.

source is Some if the source node doesn’t exist. target is Some if the target node doesn’t exist.

Fields

source: Option<NodeIndex<Ix>>

target: Option<NodeIndex<Ix>>

Implementations

impl<Ix: IndexType> BoundedGraphError<Ix>

pub fn source_rejected(source: NodeIndex<Ix>, target: NodeIndex<Ix>) -> Self

Creates an error indicating the source node rejected the edge.

pub fn target_rejected(source: NodeIndex<Ix>, target: NodeIndex<Ix>) -> Self

Creates an error indicating the target node rejected the edge.

pub fn both_rejected(source: NodeIndex<Ix>, target: NodeIndex<Ix>) -> Self

Creates an error indicating both nodes rejected the edge.

pub fn not_found( source: Option<NodeIndex<Ix>>, target: Option<NodeIndex<Ix>>, ) -> Self

Creates an error indicating one or both nodes were not found.

Trait Implementations

impl<Ix: Clone + IndexType> Clone for BoundedGraphError<Ix>

fn clone(&self) -> BoundedGraphError<Ix>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Ix: Debug + IndexType> Debug for BoundedGraphError<Ix>

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

Formats the value using the given formatter.

impl<Ix: IndexType> Display for BoundedGraphError<Ix>

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

Formats the value using the given formatter.

impl<Ix: IndexType> Error for BoundedGraphError<Ix>

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<Ix: IndexType> From<BoundedGraphError<Ix>> for BoundedAcyclicGraphError<Ix>

fn from(err: BoundedGraphError<Ix>) -> Self

Converts to this type from the input type.

impl<Ix: PartialEq + IndexType> PartialEq for BoundedGraphError<Ix>

fn eq(&self, other: &BoundedGraphError<Ix>) -> 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<Ix: Eq + IndexType> Eq for BoundedGraphError<Ix>

impl<Ix: IndexType> StructuralPartialEq for BoundedGraphError<Ix>