Enum cfg::history::BinarizedRhsSubset

pub enum BinarizedRhsSubset {
    Left,
    Right,
    All,
}

Used to inform which symbols on a rule'Symbol RHS are nullable, and will be eliminated.

Variants

Left

The first of two symbols.

Right

The second of two symbols.

All

All 1 or 2 symbols. The rule is nullable.

Trait Implementations

impl Clone for BinarizedRhsSubset

fn clone(&self) -> BinarizedRhsSubset

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for BinarizedRhsSubset