Struct Rule

pub struct Rule<'g> { /* private fields */ }

A Rule is a handle to a rule inside of a Grammar.

Implementations

impl<'g> Rule<'g>

pub fn grammar(&self) -> &'g Grammar

The Grammar backing this rule.

pub fn lhs(&self) -> Symbol<'g>

The symbol on the LHS.

pub fn rhs(&self) -> Vec<Symbol<'g>>

The sequence of symbols on the RHS.

Trait Implementations

impl<'g> Clone for Rule<'g>

fn clone(&self) -> Rule<'g>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'g> Debug for Rule<'g>

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

Formats the value using the given formatter.

impl<'g> Hash for Rule<'g>

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<'g> PartialEq for Rule<'g>

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

Tests for self and other values to be equal, and is used by ==.

const 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<'g> Copy for Rule<'g>

impl<'g> Eq for Rule<'g>