Struct bevy::ecs::query::FilteredAccess
[−]pub struct FilteredAccess<T> where
T: SparseSetIndex, { /* private fields */ }
Expand description
An Access
that has been filtered to include and exclude certain combinations of elements.
Used internally to statically check if queries are disjoint.
Subtle: a read
or write
in access
should not be considered to imply a
with
access.
For example consider Query<Option<&T>>
this only has a read
of T
as doing
otherwise would allow for queries to be considered disjoint that actually aren’t:
Query<(&mut T, Option<&U>)>
read/writeT
, readU
, withU
Query<&mut T, Without<U>>
read/writeT
, withoutU
from this we could reasonably conclude that the queries are disjoint but they aren’t.
In order to solve this the actual access that Query<(&mut T, Option<&U>)>
has
is read/write T
, read U
. It must still have a read U
access otherwise the following
queries would be incorrectly considered disjoint:
Query<&mut T>
read/writeT
Query<Option<&T>
accesses nothing
See comments the WorldQuery
impls of AnyOf
/Option
/Or
for more information.
Implementations
impl<T> FilteredAccess<T> where
T: SparseSetIndex,
impl<T> FilteredAccess<T> where
T: SparseSetIndex,
pub fn access_mut(&mut self) -> &mut Access<T>
pub fn access_mut(&mut self) -> &mut Access<T>
Returns a mutable reference to the underlying unfiltered access.
pub fn add_read(&mut self, index: T)
pub fn add_read(&mut self, index: T)
Adds access to the element given by index
.
pub fn add_write(&mut self, index: T)
pub fn add_write(&mut self, index: T)
Adds exclusive access to the element given by index
.
pub fn add_with(&mut self, index: T)
pub fn add_with(&mut self, index: T)
Retains only combinations where the element given by index
is also present.
pub fn add_without(&mut self, index: T)
pub fn add_without(&mut self, index: T)
Retains only combinations where the element given by index
is not present.
pub fn extend_intersect_filter(&mut self, other: &FilteredAccess<T>)
pub fn extend_access(&mut self, other: &FilteredAccess<T>)
pub fn is_compatible(&self, other: &FilteredAccess<T>) -> bool
pub fn is_compatible(&self, other: &FilteredAccess<T>) -> bool
Returns true
if this and other
can be active at the same time.
pub fn get_conflicts(&self, other: &FilteredAccess<T>) -> Vec<T, Global>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
pub fn get_conflicts(&self, other: &FilteredAccess<T>) -> Vec<T, Global>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
A: Allocator,
Returns a vector of elements that this and other
cannot access at the same time.
pub fn extend(&mut self, access: &FilteredAccess<T>)
pub fn extend(&mut self, access: &FilteredAccess<T>)
Adds all access and filters from other
.
pub fn read_all(&mut self)
pub fn read_all(&mut self)
Sets the underlying unfiltered access as having access to all indexed elements.
Trait Implementations
impl<T> Clone for FilteredAccess<T> where
T: Clone + SparseSetIndex,
impl<T> Clone for FilteredAccess<T> where
T: Clone + SparseSetIndex,
fn clone(&self) -> FilteredAccess<T>
fn clone(&self) -> FilteredAccess<T>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl<T> Debug for FilteredAccess<T> where
T: Debug + SparseSetIndex,
impl<T> Debug for FilteredAccess<T> where
T: Debug + SparseSetIndex,
impl<T> Default for FilteredAccess<T> where
T: SparseSetIndex,
impl<T> Default for FilteredAccess<T> where
T: SparseSetIndex,
fn default() -> FilteredAccess<T>
fn default() -> FilteredAccess<T>
Returns the “default value” for a type. Read more
impl<T> From<FilteredAccess<T>> for FilteredAccessSet<T> where
T: SparseSetIndex,
impl<T> From<FilteredAccess<T>> for FilteredAccessSet<T> where
T: SparseSetIndex,
fn from(filtered_access: FilteredAccess<T>) -> FilteredAccessSet<T>
fn from(filtered_access: FilteredAccess<T>) -> FilteredAccessSet<T>
Converts to this type from the input type.
impl<T> PartialEq<FilteredAccess<T>> for FilteredAccess<T> where
T: PartialEq<T> + SparseSetIndex,
impl<T> PartialEq<FilteredAccess<T>> for FilteredAccess<T> where
T: PartialEq<T> + SparseSetIndex,
fn eq(&self, other: &FilteredAccess<T>) -> bool
fn eq(&self, other: &FilteredAccess<T>) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
impl<T> Eq for FilteredAccess<T> where
T: Eq + SparseSetIndex,
impl<T> StructuralEq for FilteredAccess<T> where
T: SparseSetIndex,
impl<T> StructuralPartialEq for FilteredAccess<T> where
T: SparseSetIndex,
Auto Trait Implementations
impl<T> RefUnwindSafe for FilteredAccess<T> where
T: RefUnwindSafe,
impl<T> Send for FilteredAccess<T> where
T: Send,
impl<T> Sync for FilteredAccess<T> where
T: Sync,
impl<T> Unpin for FilteredAccess<T> where
T: Unpin,
impl<T> UnwindSafe for FilteredAccess<T> where
T: UnwindSafe,
Blanket Implementations
impl<T, U> AsBindGroupShaderType<U> for T where
U: ShaderType,
&'a T: for<'a> Into<U>,
impl<T, U> AsBindGroupShaderType<U> for T where
U: ShaderType,
&'a T: for<'a> Into<U>,
fn as_bind_group_shader_type(
&self,
_images: &HashMap<Handle<Image>, <Image as RenderAsset>::PreparedAsset, RandomState, Global>
) -> U
fn as_bind_group_shader_type(
&self,
_images: &HashMap<Handle<Image>, <Image as RenderAsset>::PreparedAsset, RandomState, Global>
) -> U
Return the T
ShaderType
for self
. When used in AsBindGroup
derives, it is safe to assume that all images in self
exist. Read more
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
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
. Read more
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
fn as_any(&self) -> &(dyn Any + 'static)
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. Read more
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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. Read more
sourceimpl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to key
and return true
if they are equal.
impl<T> FromWorld for T where
T: Default,
impl<T> FromWorld for T where
T: Default,
fn from_world(_world: &mut World) -> T
fn from_world(_world: &mut World) -> T
Creates Self
using data from the given World
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
T: Future, type Output = <T as Future>::Output;
sourcefn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
T: Future, type Output = <T as Future>::Output;
impl<T> TypeData for T where
T: 'static + Send + Sync + Clone,
impl<T> TypeData for T where
T: 'static + Send + Sync + Clone,
fn clone_type_data(&self) -> Box<dyn TypeData + 'static, Global>
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
T: Future, type Output = <T as Future>::Output;
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
T: Future, type Output = <T as Future>::Output;
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more