Struct cfg::rule::builder::RuleBuilder

pub struct RuleBuilder<C>where
    C: RuleContainer,{ /* private fields */ }

The rule builder.

Implementations

impl<C> RuleBuilder<C>where C: RuleContainer,

pub fn new(rules: C) -> RuleBuilder<C>

Creates a rule builder.

impl<C> RuleBuilder<C>where C: RuleContainer,

pub fn rule(self, lhs: Symbol) -> Self

Starts building a new rule with the given LHS.

pub fn history(self, history: HistoryId) -> Self

Assigns the rule history, which is used on the next call to rhs, or overwritten by a call to rhs_with_history.

pub fn rhs<S>(self, syms: S) -> Selfwhere S: AsRef<[Symbol]>,

Adds a rule alternative to the grammar. If history wasn’t provided, the rule has the Default history.

pub fn rhs_with_history<Sr>(self, syms: Sr, history_id: HistoryId) -> Selfwhere Sr: AsRef<[Symbol]>,

Adds a rule alternative with the given RHS and history to the grammar.

pub fn rhs_with_linked_history<Sr>( self, syms: Sr, linked_history: LinkedHistoryNode ) -> Selfwhere Sr: AsRef<[Symbol]>,

Adds a rule alternative with the given RHS and history to the grammar.

pub fn precedenced_rule(self, lhs: Symbol) -> PrecedencedRuleBuilder<C>

Starts building a new precedenced rule.