Struct Unify

pub struct Unify { /* private fields */ }

Implementations

impl Unify

pub fn new(var1: VarToken, var2: VarToken) -> Self

Allocate a new Unify constraint.

Examples

let mut send_more_money = puzzle_solver::Puzzle::new();
let carry = send_more_money.new_vars_with_candidates_1d(4, &[0,1]);
let vars = send_more_money.new_vars_with_candidates_1d(8,
        &[0,1,2,3,4,5,6,7,8,9]);

let m = vars[4];
puzzle_solver::constraint::Unify::new(m, carry[3]);

Trait Implementations

impl Constraint for Unify

fn vars<'a>(&'a self) -> Box<dyn Iterator<Item = &'a VarToken> + 'a>

An iterator over the variables that are involved in the constraint.

fn on_updated(&self, search: &mut PuzzleSearch<'_>) -> PsResult<()>

Applied after a variable’s candidates has been modified.

fn substitute( &self, from: VarToken, to: VarToken, ) -> PsResult<Rc<dyn Constraint>>

Substitute the “from” variable with the “to” variable.

fn on_assigned( &self, _search: &mut PuzzleSearch<'_>, _var: VarToken, _val: Val, ) -> PsResult<()>

Applied after a variable has been assigned.