pub struct EntitySet<K>where
    K: EntityRef,{ /* private fields */ }
Expand description

A set of K for densely indexed entity references.

The EntitySet data structure uses the dense index space to implement a set with a bitvector. Like SecondaryMap, an EntitySet is used to associate secondary information with entities.

Implementations§

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impl<K> EntitySet<K>where K: EntityRef,

Shared EntitySet implementation for all value types.

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pub fn new() -> Self

Create a new empty set.

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pub fn with_capacity(capacity: usize) -> Self

Creates a new empty set with the specified capacity.

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pub fn contains(&self, k: K) -> bool

Get the element at k if it exists.

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pub fn is_empty(&self) -> bool

Is this set completely empty?

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pub fn cardinality(&self) -> usize

Returns the cardinality of the set. More precisely, it returns the number of calls to insert with different key values, that have happened since the the set was most recently cleared or created with new.

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pub fn clear(&mut self)

Remove all entries from this set.

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pub fn keys(&self) -> Keys<K>

Iterate over all the keys in this set.

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pub fn resize(&mut self, n: usize)

Resize the set to have n entries by adding default entries as needed.

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pub fn insert(&mut self, k: K) -> bool

Insert the element at k.

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pub fn pop(&mut self) -> Option<K>

Removes and returns the entity from the set if it exists.

Trait Implementations§

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impl<K> Clone for EntitySet<K>where K: EntityRef + Clone,

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fn clone(&self) -> EntitySet<K>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<K> Debug for EntitySet<K>where K: EntityRef + Debug,

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

Formats the value using the given formatter. Read more
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impl<K: EntityRef> Default for EntitySet<K>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<K> RefUnwindSafe for EntitySet<K>where K: RefUnwindSafe,

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impl<K> Send for EntitySet<K>where K: Send,

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impl<K> Sync for EntitySet<K>where K: Sync,

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impl<K> Unpin for EntitySet<K>where K: Unpin,

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impl<K> UnwindSafe for EntitySet<K>where K: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.