Struct LRItem

pub struct LRItem {
    pub root_name: String,
    pub pattern: Vec<BNFSymbol>,
    pub first_set: HashSet<BNFSymbol>,
    pub current_position: usize,
    pub is_scanned: bool,
}

Fields

root_name: String

pattern: Vec<BNFSymbol>

first_set: HashSet<BNFSymbol>

current_position: usize

is_scanned: bool

Implementations

impl LRItem

pub fn new(root_name: String) -> Self

pub fn is_last_position(&self) -> bool

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

pub fn get_next_symbol(&self) -> Option<BNFSymbol>

pub fn get_latter_pattern(&self) -> Vec<BNFSymbol>

pub fn create_next(&self) -> Option<Self>

Trait Implementations

impl Clone for LRItem

fn clone(&self) -> LRItem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LRItem

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

Formats the value using the given formatter.

impl PartialEq for LRItem

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

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

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 Eq for LRItem

impl StructuralPartialEq for LRItem