Struct Variable 

pub struct Variable {
    pub name: String,
    pub domain: Domain,
    pub assigned: bool,
    pub value: Option<i64>,
}

A constraint variable with a name and domain.

Fields

name: String

domain: Domain

assigned: bool

Whether this variable has been assigned a value

value: Option<i64>

The assigned value (if any)

Implementations

impl Variable

pub fn new(name: impl Into<String>, domain: Domain) -> Self

Create a new variable with the given name and domain.

pub fn assign(&mut self, value: i64) -> Result<(), IrError>

Assign a value to this variable.

pub fn is_singleton(&self) -> bool

Check if the variable is a singleton (domain has only one value).

Trait Implementations

impl Clone for Variable

fn clone(&self) -> Variable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Variable

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Variable

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Variable

fn eq(&self, other: &Variable) -> 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 Serialize for Variable

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Variable