Struct spirt::EntityOrientedDenseMap

pub struct EntityOrientedDenseMap<K: EntityOrientedMapKey<V>, V> {
    chunk_start_to_value_slots: SmallFxHashMap<K::Entity, Vec<K::DenseValueSlots>>,
}

Map with K keys and V values, that is:

• “entity-oriented” K keys, i.e. that are or contain exactly one entity (supported via K: EntityOrientedMapKey<V> for extensibility)
• “dense” in the sense of few (or no) gaps in (the entities in) its keys (relative to the entities defined in the corresponding EntityDefs)

By design there is no way to iterate the entries in an EntityOrientedDenseMap.

Fields

chunk_start_to_value_slots: SmallFxHashMap<K::Entity, Vec<K::DenseValueSlots>>

Like in EntityDefs, entities are grouped into chunks, but there is no flattening, since arbitrary insertion orders have to be supported.

Implementations

impl<K: EntityOrientedMapKey<V>, V> EntityOrientedDenseMap<K, V>

pub fn new() -> Self

pub fn entry(&mut self, key: K) -> &mut Option<V>

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

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

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

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

fn get_slot_mut(&mut self, key: K) -> Option<&mut Option<V>>

Trait Implementations

impl<K: Clone + EntityOrientedMapKey<V>, V: Clone> Clone for EntityOrientedDenseMap<K, V>

where K::Entity: Clone, K::DenseValueSlots: Clone,

fn clone(&self) -> EntityOrientedDenseMap<K, V>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<K: EntityOrientedMapKey<V>, V> Default for EntityOrientedDenseMap<K, V>

fn default() -> Self

Returns the “default value” for a type.

impl<K: EntityOrientedMapKey<V>, V> Index<K> for EntityOrientedDenseMap<K, V>

type Output = V

The returned type after indexing.

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

Performs the indexing (container[index]) operation.

impl<K: EntityOrientedMapKey<V>, V> IndexMut<K> for EntityOrientedDenseMap<K, V>

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

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