Enum PathError

pub enum PathError {
    InvalidIndex(usize),
    CyclicReferenceFound(usize),
    HitMaxSearchIterations(i32),
    Empty,
}

Path search can be interrupted by errors, this enum stores all possible kinds of errors.

Variants

InvalidIndex(usize)

Out-of-bounds vertex index was found, it can be either the index of begin/end points, or some index of neighbour vertices in list of neighbours in vertex.

CyclicReferenceFound(usize)

There is a vertex that has itself as neighbour.

HitMaxSearchIterations(i32)

Path vector is still valid and partial, but pathfinder hit its maximum search iterations and gave up.

Notes

This most often means the desired destination is isolated, but a full path may exist. If a full path does exist you can:

• increase or disable max search iterations for this graph (at the cost of time).
• use a pathfinding algorithm that is better in these situations.

See Graph<T>.max_search_iterations for more

Empty

Graph was empty.

Trait Implementations

impl Clone for PathError

fn clone(&self) -> PathError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PathError

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

Formats the value using the given formatter.

impl Display for PathError

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

Formats the value using the given formatter.