Struct EntitySet 

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

Like cranelift_entity::EntitySet but enforces fallible allocation for all methods that allocate.

Implementations

impl<K> EntitySet<K>

where K: EntityRef,

pub fn new() -> Self

Create a new empty set.

pub fn with_capacity(capacity: usize) -> Result<Self, OutOfMemory>

Creates a new empty set with the specified capacity.

pub fn ensure_capacity(&mut self, capacity: usize) -> Result<(), OutOfMemory>

Ensure that there is enough capacity to hold capacity total elements.

pub fn is_empty(&self) -> bool

Is this set completely empty?

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

Get the element at k if it exists.

pub fn clear(&mut self)

Remove all entries from this set.

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

Iterate over all the keys up to the maximum in this set.

This will yield intermediate keys on the way up to the max key, even if they are not contained within the set.

pub fn iter(&self) -> SetIter<'_, K>

Iterate over the elements of this set.

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

Insert the element at k.

Returns true if k was not present in the set, i.e. this is a newly-added element. Returns false otherwise.

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

Remove k from this bitset.

Returns whether k was previously in this set or not.

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

Removes and returns the highest-index entity from the set if it exists.

Trait Implementations

impl<K> Debug for EntitySet<K>

where K: EntityRef + Debug,

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

Formats the value using the given formatter.

impl<K> Default for EntitySet<K>

where K: EntityRef + Default,

fn default() -> EntitySet<K>

Returns the “default value” for a type.