Struct bevy_ecs::archetype::ArchetypeComponentId

source ·
pub struct ArchetypeComponentId(/* private fields */);
Expand description

An opaque unique joint ID for a Component in an Archetype within a World.

A component may be present within multiple archetypes, but each component within each archetype has its own unique ArchetypeComponentId. This is leveraged by the system schedulers to opportunistically run multiple systems in parallel that would otherwise conflict. For example, Query<&mut A, With<B>> and Query<&mut A, Without<B>> can run in parallel as the matched ArchetypeComponentId sets for both queries are disjoint, even though &mut A on both queries point to the same ComponentId.

In SQL terms, these IDs are composite keys on a many-to-many relationship between archetypes and components. Each component type will have only one ComponentId, but may have many ArchetypeComponentIds, one for every archetype the component is present in. Likewise, each archetype will have only one ArchetypeId but may have many ArchetypeComponentIds, one for each component that belongs to the archetype.

Every Resource is also assigned one of these IDs. As resources do not belong to any particular archetype, a resource’s ID uniquely identifies it.

These IDs are only valid within a given World, and are not globally unique. Attempting to use an ID on a world that it wasn’t sourced from will not point to the same archetype nor the same component.

Trait Implementations§

source§

impl Clone for ArchetypeComponentId

source§

fn clone(&self) -> ArchetypeComponentId

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for ArchetypeComponentId

source§

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

Formats the value using the given formatter. Read more
source§

impl Hash for ArchetypeComponentId

source§

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
source§

impl PartialEq for ArchetypeComponentId

source§

fn eq(&self, other: &ArchetypeComponentId) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl SparseSetIndex for ArchetypeComponentId

source§

fn sparse_set_index(&self) -> usize

Gets the sparse set index corresponding to this instance.
source§

fn get_sparse_set_index(value: usize) -> Self

Creates a new instance of this type with the specified index.
source§

impl Copy for ArchetypeComponentId

source§

impl Eq for ArchetypeComponentId

source§

impl StructuralPartialEq for ArchetypeComponentId

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> Downcast for T
where T: Any,

source§

fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
source§

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
source§

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
source§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
source§

impl<T> DowncastSync for T
where T: Any + Send + Sync,

source§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
source§

impl<T> DynEq for T
where T: Any + Eq,

source§

fn as_any(&self) -> &(dyn Any + 'static)

Casts the type to dyn Any.
source§

fn dyn_eq(&self, other: &(dyn DynEq + 'static)) -> bool

This method tests for self and other values to be equal. Read more
source§

impl<T> DynHash for T
where T: DynEq + Hash,

source§

fn as_dyn_eq(&self) -> &(dyn DynEq + 'static)

Casts the type to dyn Any.
source§

fn dyn_hash(&self, state: &mut dyn Hasher)

Feeds this value into the given Hasher.
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

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

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.

source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

impl<T> TypeData for T
where T: 'static + Send + Sync + Clone,

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

impl<T> ConditionalSend for T
where T: Send,