Struct DispatchKeySet 

pub struct DispatchKeySet { /* private fields */ }

A set of active DispatchKeys, stored as a u16 bitmask for constant-time membership testing and iteration.

Implementations

impl DispatchKeySet

pub const fn empty() -> DispatchKeySet

An empty set.

pub fn all() -> DispatchKeySet

A set containing every defined key.

pub fn from_keys<I>(keys: I) -> DispatchKeySet

where I: IntoIterator<Item = DispatchKey>,

Construct a set from an iterable of keys. Convenience wrapper over the FromIterator impl below for callers that don’t want to chain .into_iter().collect().

pub fn contains(self, key: DispatchKey) -> bool

Returns true if key is in this set.

pub fn insert(self, key: DispatchKey) -> DispatchKeySet

Returns a new set with key added.

pub fn remove(self, key: DispatchKey) -> DispatchKeySet

Returns a new set with key removed.

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

Union of two sets.

pub fn intersection(self, other: DispatchKeySet) -> DispatchKeySet

Intersection of two sets.

pub fn is_empty(self) -> bool

Returns true if this set has no keys.

pub fn len(self) -> usize

Number of keys in this set.

pub fn highest(self) -> Option<DispatchKey>

Highest-priority key in this set, or None if empty. This is the “next” key the dispatcher will resolve.

pub fn iter_desc(self) -> impl Iterator<Item = DispatchKey>

Returns an iterator over all keys in the set, in descending priority order (highest first).

Trait Implementations

impl Clone for DispatchKeySet

fn clone(&self) -> DispatchKeySet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DispatchKeySet

impl Debug for DispatchKeySet

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

Formats the value using the given formatter.

impl Default for DispatchKeySet

fn default() -> DispatchKeySet

Returns the “default value” for a type.

impl Eq for DispatchKeySet

impl<const N: usize> From<[DispatchKey; N]> for DispatchKeySet

fn from(arr: [DispatchKey; N]) -> DispatchKeySet

Converts to this type from the input type.

impl FromIterator<DispatchKey> for DispatchKeySet

fn from_iter<I>(keys: I) -> DispatchKeySet

where I: IntoIterator<Item = DispatchKey>,

Creates a value from an iterator.

impl Hash for DispatchKeySet

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DispatchKeySet

fn eq(&self, other: &DispatchKeySet) -> 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 StructuralPartialEq for DispatchKeySet