Enum specs::storage::StorageEntry [−][src]
pub enum StorageEntry<'a, 'b: 'a, T: 'a, D: 'a> { Occupied(OccupiedEntry<'a, 'b, T, D>), Vacant(VacantEntry<'a, 'b, T, D>), }
Expand description
Entry to a storage for convenient filling of components or removal based on whether the entity has a component.
Variants
Occupied(OccupiedEntry<'a, 'b, T, D>)
Entry variant that is returned if the entity has a component.
Vacant(VacantEntry<'a, 'b, T, D>)
Entry variant that is returned if the entity does not have a component.
Implementations
impl<'a, 'b, T, D> StorageEntry<'a, 'b, T, D> where
T: Component,
D: DerefMut<Target = MaskedStorage<T>>,
[src]
impl<'a, 'b, T, D> StorageEntry<'a, 'b, T, D> where
T: Component,
D: DerefMut<Target = MaskedStorage<T>>,
[src]Inserts a component and returns the old value in case this entry was already occupied.
Inserts a component if the entity does not have it already.
Inserts a component using a lazily called function that is only called when inserting the component. Ensures this entry has a value and if not, inserts one using the result of the passed closure. Returns a reference to the value afterwards.
Auto Trait Implementations
impl<'a, 'b, T, D> !RefUnwindSafe for StorageEntry<'a, 'b, T, D>
impl<'a, 'b, T, D> Send for StorageEntry<'a, 'b, T, D> where
D: Send,
T: Send,
impl<'a, 'b, T, D> Sync for StorageEntry<'a, 'b, T, D> where
D: Sync,
T: Sync,
impl<'a, 'b, T, D> Unpin for StorageEntry<'a, 'b, T, D> where
'b: 'a,
impl<'a, 'b, T, D> !UnwindSafe for StorageEntry<'a, 'b, T, D>