Struct Assoc 

pub struct Assoc<K: Key, V> { /* private fields */ }

Associates keys with values with minimal or no runtime overhead.

Implementations

impl<K: Key, V, const N: usize> Assoc<K, V>

where K::Impl: KeyImpl<Storage<V> = [V; N]>,

pub const LEN: usize = N

pub const fn from_values(values: [V; N]) -> Self

pub const fn len(&self) -> usize

pub const fn is_empty(&self) -> bool

pub fn get(&self, key: K) -> &V

Returns a reference to the value associated with the given key.

pub const fn const_get(&self, key: K) -> &V

Returns a reference to the value associated with the given key.

This version does bounds-checking therefore can be used in const contexts, unlike get.

pub fn get_mut(&mut self, key: K) -> &mut V

Returns a mutable reference to the value associated with the given key.

pub const fn const_get_mut(&mut self, key: K) -> &mut V

Returns a mutable reference to the value associated with the given key.

This version does bounds-checking, therefore can be used in const contexts, unlike get.

pub fn into_values(self) -> impl Iterator<Item = V>

Takes self by value and returns an iterator over all the values stored in this map.

pub fn values(&self) -> impl Iterator<Item = &V>

Returns an iterator over shared references to all values stored in this map in arbitrary order.

pub fn values_mut(&mut self) -> impl Iterator<Item = &mut V>

Returns an iterator over mutable references to all values stored in this map in arbitrary order.

impl<K: Key, V, const N: usize> Assoc<K, MaybeUninit<V>>

where K::Impl: KeyImpl<Storage<V> = [V; N]> + KeyImpl<Storage<MaybeUninit<V>> = [MaybeUninit<V>; N]>,

pub const fn new_uninit() -> Self

pub const unsafe fn assume_init(self) -> Assoc<K, V>

Interprets this map as fully initialized, meaning that all its values have been given a concrete value.

Safety

The caller must ensure that the map has actually been fully initialized, meaning that all values have been given an initialized value such that calling MaybeUninit::assume_init on them would be safe.

Trait Implementations

impl<K: Key, V: ConstDefault> ConstDefault for Assoc<K, V>

where <K::Impl as KeyImpl>::Storage<V>: ConstDefault,

const DEFAULT: Self

The constant default value.

impl<K: Key, V: ConstDefault> Default for Assoc<K, V>

where <K::Impl as KeyImpl>::Storage<V>: Default,

fn default() -> Self

Returns the “default value” for a type.

impl<K: Key, V, const N: usize> Index<K> for Assoc<K, V>

where K::Impl: KeyImpl<Storage<V> = [V; N]>,

type Output = V

The returned type after indexing.

fn index(&self, index: K) -> &Self::Output

Performs the indexing (container[index]) operation.

impl<K: Key, V, const N: usize> IndexMut<K> for Assoc<K, V>

where K::Impl: KeyImpl<Storage<V> = [V; N]>,

fn index_mut(&mut self, index: K) -> &mut Self::Output

Performs the mutable indexing (container[index]) operation.