Enum Condition

pub enum Condition<T> {
    Is(Vec<T>),
    Not(Vec<T>),
    Any,
    None,
}

A basic “is” or “is not” condition criteria.

Variants

Is(Vec<T>)

Matches when the input is one of the values in the Vec.

Not(Vec<T>)

Matches when the input isn’t one of the values in the Vec.

Any

Matches any value.

None

Matches no value.

Trait Implementations

impl<T: Clone> Clone for Condition<T>

fn clone(&self) -> Condition<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Clone + Copy + PartialEq + Eq + Hash> Criteria for Condition<T>

type Input = T

Input type for the state machien criteria.

fn is_match(&self, i: &Self::Input) -> bool

Checks whether a given input is a match for a specific criteria.

fn and(&self, other: &Self) -> Self

Combines two Criteria together.

fn not(&self, other: &Self) -> Self

Calculates a difference criteria that matches self but not other.

fn is_empty(&self) -> bool

Checks if the Criteria represents an empty criteria that doesn’t match any input.

fn any() -> Self

A default criteria that matches everything.

fn evaluation_order(&self) -> usize

The evaluation order of the Criteria defines the order in which the state transitiosn are evaluated. Criteria with smaller evaluation order is processed first.

impl<T: Debug> Debug for Condition<T>

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

Formats the value using the given formatter.

impl<T: Hash> Hash for Condition<T>

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<T: PartialEq> PartialEq for Condition<T>

fn eq(&self, other: &Condition<T>) -> 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<T: Eq> Eq for Condition<T>

impl<T> StructuralPartialEq for Condition<T>