Trait ParentPolicy 

pub trait ParentPolicy<G>
where
    G: GraphBase,
{
    type State;

    // Required methods
    fn init(graph: &G) -> Self::State;
    fn save_parent(
        graph: &G,
        state: &mut Self::State,
        from: G::VIndex,
        to: G::VIndex,
    );
}

Required Associated Types

type State

Required Methods

fn init(graph: &G) -> Self::State

fn save_parent( graph: &G, state: &mut Self::State, from: G::VIndex, to: G::VIndex, )

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.

Implementors

impl<G> ParentPolicy<G> for NoParent

where G: GraphBase,

type State = ()

impl<G> ParentPolicy<G> for RecordParent

where G: GraphBase + VertexMap<Option<<G as GraphBase>::VIndex>>,

type State = <G as VertexMap<Option<<G as GraphBase>::VIndex>>>::Vmap