Struct cfg::classification::lr::Lr0ClosureBuilder

pub struct Lr0ClosureBuilder<'a, G> { /* private fields */ }

A builder for an LR(0) item closure.

Implementations

impl<'a, G> Lr0ClosureBuilder<'a, G>where G: RuleContainer + Default, for<'b> &'b G: RuleContainerRef<'b, Target = G>,

pub fn new(grammar: &'a mut G) -> Self

Creates a builder for an LR(0) item closure.

pub fn closure(&mut self, items: &mut Lr0Items)

We compute the closure for LR(0) items.

pub fn advance(&mut self, items: &Lr0Items, sym: Symbol) -> Option<Lr0Items>

Advances the items by a symbol.