Enum Status

pub enum Status {
    Untested,
    Success,
    Failure,
    Indeterminate,
}

The possible statuses of a node in the search.

Variants

Untested

The node has not been tested yet. This is the starting state for each node in a search.

Success

The node has been tested and satisfies some caller-defined predicate. For the rest of the search, it’s assumed that all ancestor nodes of this node also satisfy the predicate.

Failure

The node has been tested and does not satisfy some caller-defined predicate. For the rest of the search, it’s assumed that all descendant nodes of this node also do not satisfy the predicate.

Indeterminate

The node has been tested, but it is not known whether it satisfies some caller-defined predicate. It will be skipped in future searches.

Trait Implementations

impl Clone for Status

fn clone(&self) -> Status

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Status

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

Formats the value using the given formatter.

impl Hash for Status

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Status

fn eq(&self, other: &Status) -> 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 Copy for Status

impl Eq for Status

impl StructuralPartialEq for Status