Struct compact::CHashMap

pub struct CHashMap<K, V, A: Allocator = DefaultHeap> { /* fields omitted */ }

A dynamically-sized open adressing quadratic probing hashmap that can be stored in compact sequential storage and automatically spills over into free heap storage using Allocator.

Implementations

impl<K: Copy + Eq + Hash, V: Compact, A: Allocator> OpenAddressingMap<K, V, A>

pub fn new() -> Self

constructor

pub fn with_capacity(l: usize) -> Self

constructor

pub fn len(&self) -> usize

Amount of entries in the dictionary

pub fn is_empty(&self) -> bool

Is the dictionary empty?

pub fn get(&self, query: K) -> Option<&V>

Look up the value for key query, if it exists

pub fn get_mut(&mut self, query: K) -> Option<&mut V>

get mutable

pub fn contains_key(&self, query: K) -> bool

Does the dictionary contain a value for query?

pub fn insert(&mut self, query: K, value: V) -> Option<V>

Insert new value at key query and return the previous value at that key, if any existed

pub fn remove(&mut self, query: K) -> Option<V>

Remove value at key query and return it, if it existed

pub fn keys<'a>(&'a self) -> impl Iterator<Item = &'a K> + 'a

Iterator over all keys in the dictionary

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

Iterator over all values in the dictionary

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

Iterator over mutable references to all values in the dictionary

pub fn pairs<'a>(&'a self) -> impl Iterator<Item = (&'a K, &'a V)> + 'a

Iterator over all key-value pairs in the dictionary

pub fn pairs_mut<'a>(&'a mut self) -> impl Iterator<Item = (K, &'a mut V)> + 'a where
    K: Copy, 

Iterator over all key-value pairs in the dictionary, with the value as a mutable reference

impl<K: Hash + Eq + Copy, I: Compact, A1: Allocator, A2: Allocator> OpenAddressingMap<K, CompactVec<I, A1>, A2>

pub fn push_at(&mut self, query: K, item: I)

Push a value onto the CompactVec at the key query

pub fn get_iter<'a>(&'a self, query: K) -> impl Iterator<Item = &'a I> + 'a

Iterator over the CompactVec at the key query

pub fn remove_iter<'a>(&'a mut self, query: K) -> impl Iterator<Item = I> + 'a

Remove the CompactVec at the key query and iterate over its elements (if it existed)

Trait Implementations

impl<K: Copy, V: Compact + Clone, A: Allocator> Clone for OpenAddressingMap<K, V, A>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<K: Copy + Eq + Hash, V: Compact, A: Allocator> Compact for OpenAddressingMap<K, V, A>

default fn is_still_compact(&self) -> bool

Is the object's dynamic part stored compactly?

default fn dynamic_size_bytes(&self) -> usize

Size of the dynamic part in bytes

unsafe default fn compact(
    source: *mut Self,
    dest: *mut Self,
    new_dynamic_part: *mut u8
)

Copy the static part of source to dest and compactly store the dynamic part of source as the new dynamic part of dest at new_dynamic_part. This semantically moves source into dest.

unsafe fn decompact(source: *const Self) -> OpenAddressingMap<K, V, A>

Creates a clone of self with the dynamic part guaranteed to be stored freely.

fn total_size_bytes(&self) -> usize

Total size of the object (static part + dynamic part)

unsafe fn behind(ptr: *mut Self) -> *mut u8

Get a pointer to behind the static part of self (commonly used place for the dynamic part)

unsafe fn compact_behind(source: *mut Self, dest: *mut Self)

Like compact with new_dynamic_part set to dest.behind()

impl<K: Copy + Eq + Hash + Debug, V: Compact + Clone + Debug, A: Allocator> Debug for OpenAddressingMap<K, V, A>

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

Formats the value using the given formatter.

impl<K: Copy + Eq + Hash, V: Compact, A: Allocator> Default for OpenAddressingMap<K, V, A>

fn default() -> Self

Returns the "default value" for a type.

impl<K: Copy + Eq + Hash, V: Compact + Clone, A: Allocator> FromIterator<(K, V)> for OpenAddressingMap<K, V, A>

fn from_iter<T: IntoIterator<Item = (K, V)>>(iter_to_be: T) -> Self

Construct a compact dictionary from an interator over key-value pairs