Struct FieldValueRangeProvider 

pub struct FieldValueRangeProvider<S, V, F>
where
    F: Fn(&S) -> &Vec<V> + Send + Sync,
{ /* private fields */ }

A value range provider backed by a field in the solution.

This is the most common case: a Vec<V> field that contains the possible values.

Implementations

impl<S, V, F> FieldValueRangeProvider<S, V, F>

where F: Fn(&S) -> &Vec<V> + Send + Sync,

pub fn new(getter: F) -> Self

Creates a new field-based value range provider.

Trait Implementations

impl<S, V, F> ValueRangeProvider<S, V> for FieldValueRangeProvider<S, V, F>

where S: Send + Sync, V: Clone + Send + Sync, F: Fn(&S) -> &Vec<V> + Send + Sync,

fn get_values(&self, solution: &S) -> Vec<V>

Returns all possible values for the variable.

fn value_count(&self, solution: &S) -> usize

Returns the number of possible values.

fn is_empty(&self, solution: &S) -> bool

Returns whether the value range is empty.