Struct specs::storage::AntiStorage

pub struct AntiStorage<'a>(pub &'a BitSet);

An inverted storage type, only useful to iterate entities that do not have a particular component type.

Tuple Fields

0: &'a BitSet

Trait Implementations

impl<'a> Join for AntiStorage<'a>

type Mask = BitSetNot<&'a BitSet>

Type of joined bit mask.

type Type = ()

Type of joined components.

type Value = ()

Type of joined storages.

unsafe fn open(self) -> (Self::Mask, ())

Open this join by returning the mask and the storages.

unsafe fn get(_: &mut (), _: Index)

Get a joined component value by a given index.

fn join(self) -> JoinIter<Self> where Self: Sized,

Create a joined iterator over the contents.

fn is_unconstrained() -> bool

If this Join typically returns all indices in the mask, then iterating over only it or combined with other joins that are also dangerous will cause the JoinIter to go through all indices which is usually not what is wanted and will kill performance.

impl<'a> LendJoin for AntiStorage<'a>

type Mask = BitSetNot<&'a BitSet>

Type of joined bit mask.

type Value = ()

Type of joined storages.

unsafe fn open(self) -> (Self::Mask, ())

Open this join by returning the mask and the storages.

unsafe fn get<'next>(_: &'next mut (), _: Index)

Get a joined component value by a given index.

fn lend_join(self) -> JoinLendIter<Self>where Self: Sized,

Create a joined lending iterator over the contents.

fn maybe(self) -> MaybeJoin<Self>where Self: Sized,

Returns a structure that implements Join/LendJoin/MaybeJoin if the contained T does and that yields all indices, returning None for all missing elements and Some(T) for found elements.

fn is_unconstrained() -> bool

If this LendJoin typically returns all indices in the mask, then iterating over only it or combined with other joins that are also dangerous will cause the JoinLendIter to go through all indices which is usually not what is wanted and will kill performance.

impl<'a> ParJoin for AntiStorage<'a>

type Mask = BitSetNot<&'a BitSet>

Type of joined bit mask.

type Type = ()

Type of joined components.

type Value = ()

Type of joined storages.

unsafe fn open(self) -> (Self::Mask, ())

Open this join by returning the mask and the storages.

unsafe fn get(_: &(), _: Index)

Get a joined component value by a given index.

fn par_join(self) -> JoinParIter<Self>where Self: Sized,

Create a joined parallel iterator over the contents.

fn is_unconstrained() -> bool

If this LendJoin typically returns all indices in the mask, then iterating over only it or combined with other joins that are also dangerous will cause the JoinLendIter to go through all indices which is usually not what is wanted and will kill performance.

impl RepeatableLendGet for AntiStorage<'_>