Struct TokenKindSet 

pub struct TokenKindSet { /* private fields */ }

A compact bitset for up to 64 token kinds.

Implementations

impl TokenKindSet

pub fn empty() -> Self

Empty set.

pub fn insert(&mut self, idx: u32)

Insert a kind by discriminant index.

pub fn contains(&self, idx: u32) -> bool

Test whether an index is present.

pub fn is_empty(&self) -> bool

Whether the set is empty.

pub fn union(self, other: Self) -> Self

Union of two sets.

pub fn intersect(self, other: Self) -> Self

Intersection of two sets.

Trait Implementations

impl Clone for TokenKindSet

fn clone(&self) -> TokenKindSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TokenKindSet

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

Formats the value using the given formatter.

impl Default for TokenKindSet

fn default() -> TokenKindSet

Returns the “default value” for a type.

impl PartialEq for TokenKindSet

fn eq(&self, other: &TokenKindSet) -> 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 Copy for TokenKindSet

impl Eq for TokenKindSet

impl StructuralPartialEq for TokenKindSet