Struct term_rewriting::Variable

pub struct Variable { /* fields omitted */ }

A symbol for an unspecified term. Only carries meaning alongside a Signature.

To construct a Variable, use Signature::new_var

Methods

impl Variable

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

Returns a Variable's name.

Examples

let mut sig = Signature::default();
let var = sig.new_var(Some("z".to_string()));

assert_eq!(var.name(), Some("z".to_string()));

pub fn display(&self) -> String

Serialize a Variable.

Examples

let mut sig = Signature::default();
let var = sig.new_var(Some("z".to_string()));

assert_eq!(var.display(), "z_");

Trait Implementations

impl PartialEq<Variable> for Variable

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

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

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

This method tests for !=.

impl Clone for Variable

fn clone(&self) -> Variable

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<Variable> for Atom

fn from(var: Variable) -> Atom

Performs the conversion.

impl Eq for Variable

impl Debug for Variable

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

Formats the value using the given formatter.

impl Hash for Variable

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].