Trait 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.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so 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