Struct term_rewriting::Operator

pub struct Operator { /* fields omitted */ }

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

To construct an Operator, use Signature::new_op.

Methods

impl Operator

pub fn arity(self, sig: &Signature) -> 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(&sig), 2);

pub fn name(self, sig: &Signature) -> Option<&str>

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(&sig), Some("Z"));

pub fn display(self, sig: &Signature) -> String

Returns a human-readable, string representation of an Operator.

Examples

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

Trait Implementations

impl Debug for Operator

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

Formats the value using the given formatter.

impl Copy for Operator

impl Clone for Operator

fn clone(&self) -> Operator

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Operator

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Operator) -> bool

This method tests for !=.

impl Eq for Operator

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,

Feeds a slice of this type into the given [Hasher].

impl From<Operator> for Atom

fn from(op: Operator) -> Atom

Performs the conversion.