Struct Operator

pub struct Operator { /* private fields */ }

A symbol with fixed arity. Only carries meaning alongside a Signature.

To construct an Operator, use Signature::new_op.

Implementations

impl Operator

pub fn arity(&self) -> u32

Returns an Operator’s arity.

Examples

let mut sig = Signature::default();
let op = sig.new_op(2, Some("Z".to_string()));

assert_eq!(op.arity(), 2);

pub fn name(&self) -> Option<String>

Returns an Operator’s name.

Examples

let mut sig = Signature::default();
let op = sig.new_op(2, Some("Z".to_string()));

assert_eq!(op.name(), Some("Z".to_string()));

pub fn display(&self) -> String

Serialize an Operator.

Examples

let mut sig = Signature::default();
let op = sig.new_op(2, Some("Z".to_string()));

assert_eq!(op.display(), "Z");

Trait Implementations

impl Clone for Operator

fn clone(&self) -> Operator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Operator

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

Formats the value using the given formatter.

impl From<Operator> for Atom

fn from(op: Operator) -> Atom

Converts to this type from the input type.

impl Hash for Operator

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 PartialEq for Operator

fn eq(&self, other: &Operator) -> 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 Eq for Operator

impl StructuralPartialEq for Operator