Trait petgraph::visit::EdgeRef

pub trait EdgeRef: Copy {
    type NodeId;
    type EdgeId;
    type Weight;

    // Required methods
    fn source(&self) -> Self::NodeId;
    fn target(&self) -> Self::NodeId;
    fn weight(&self) -> &Self::Weight;
    fn id(&self) -> Self::EdgeId;
}

An edge reference.

Edge references are used by traits IntoEdges and IntoEdgeReferences.

Required Associated Types

type NodeId

type EdgeId

type Weight

Required Methods

fn source(&self) -> Self::NodeId

The source node of the edge.

fn target(&self) -> Self::NodeId

The target node of the edge.

fn weight(&self) -> &Self::Weight

A reference to the weight of the edge.

fn id(&self) -> Self::EdgeId

The edge’s identifier.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl<'a, N, E> EdgeRef for (N, N, &'a E)

where N: Copy,

type NodeId = N

type EdgeId = (N, N)

type Weight = E

fn source(&self) -> N

fn target(&self) -> N

fn weight(&self) -> &E

fn id(&self) -> (N, N)

Implementors

impl<'a, E, Ix: IndexType> EdgeRef for petgraph::adj::EdgeReference<'a, E, Ix>

type NodeId = Ix

type EdgeId = EdgeIndex<Ix>

type Weight = E

impl<'a, E, Ty, Ix> EdgeRef for petgraph::csr::EdgeReference<'a, E, Ty, Ix>

where Ty: EdgeType, Ix: IndexType,

type NodeId = Ix

type EdgeId = usize

type Weight = E

impl<'a, Ix, E> EdgeRef for petgraph::graph::EdgeReference<'a, E, Ix>

where Ix: IndexType,

type NodeId = NodeIndex<Ix>

type EdgeId = EdgeIndex<Ix>

type Weight = E

impl<R> EdgeRef for ReversedEdgeReference<R>

where R: EdgeRef,

An edge reference

type NodeId = <R as EdgeRef>::NodeId

type EdgeId = <R as EdgeRef>::EdgeId

type Weight = <R as EdgeRef>::Weight