Struct WeightedOption 

pub struct WeightedOption<T> {
    pub weight: f64,
    pub value: Option<T>,
}

An option value tagged with a weight (used for ranked alternatives).

Fields

weight: f64

The weight (higher is better).

value: Option<T>

The value, if present.

Implementations

impl<T> WeightedOption<T>

pub fn some(weight: f64, value: T) -> Self

Create a WeightedOption with a value.

pub fn none(weight: f64) -> Self

Create a WeightedOption with no value.

pub fn better(self, other: Self) -> Self

Select the higher-weight option.

Trait Implementations

impl<T: Clone> Clone for WeightedOption<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for WeightedOption<T>

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

Formats the value using the given formatter.

impl<T: PartialEq> PartialEq for WeightedOption<T>

fn eq(&self, other: &WeightedOption<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> StructuralPartialEq for WeightedOption<T>