Struct bevy_ecs::query::QueryParIter
source · pub struct QueryParIter<'w, 's, Q: WorldQuery, F: ReadOnlyWorldQuery> { /* private fields */ }
Expand description
A parallel iterator over query results of a Query
.
This struct is created by the Query::par_iter
and
Query::par_iter_mut
methods.
Implementations§
source§impl<'w, 's, Q: ReadOnlyWorldQuery, F: ReadOnlyWorldQuery> QueryParIter<'w, 's, Q, F>
impl<'w, 's, Q: ReadOnlyWorldQuery, F: ReadOnlyWorldQuery> QueryParIter<'w, 's, Q, F>
sourcepub fn for_each<FN: Fn(ROQueryItem<'w, Q>) + Send + Sync + Clone>(
&self,
func: FN
)
pub fn for_each<FN: Fn(ROQueryItem<'w, Q>) + Send + Sync + Clone>( &self, func: FN )
Runs func
on each query result in parallel.
This can only be called for read-only queries, see Self::for_each_mut
for
write-queries.
Panics
The ComputeTaskPool
is not initialized. If using this from a query that is being
initialized and run from the ECS scheduler, this should never panic.
source§impl<'w, 's, Q: WorldQuery, F: ReadOnlyWorldQuery> QueryParIter<'w, 's, Q, F>
impl<'w, 's, Q: WorldQuery, F: ReadOnlyWorldQuery> QueryParIter<'w, 's, Q, F>
sourcepub fn batching_strategy(self, strategy: BatchingStrategy) -> Self
pub fn batching_strategy(self, strategy: BatchingStrategy) -> Self
Changes the batching strategy used when iterating.
For more information on how this affects the resultant iteration, see
BatchingStrategy
.
sourcepub fn for_each_mut<FN: Fn(QueryItem<'w, Q>) + Send + Sync + Clone>(
&mut self,
func: FN
)
pub fn for_each_mut<FN: Fn(QueryItem<'w, Q>) + Send + Sync + Clone>( &mut self, func: FN )
Runs func
on each query result in parallel.
Panics
The ComputeTaskPool
is not initialized. If using this from a query that is being
initialized and run from the ECS scheduler, this should never panic.
sourcepub unsafe fn for_each_unchecked<FN: Fn(QueryItem<'w, Q>) + Send + Sync + Clone>(
&self,
func: FN
)
pub unsafe fn for_each_unchecked<FN: Fn(QueryItem<'w, Q>) + Send + Sync + Clone>( &self, func: FN )
Runs func
on each query result in parallel.
Panics
The ComputeTaskPool
is not initialized. If using this from a query that is being
initialized and run from the ECS scheduler, this should never panic.
Safety
This does not check for mutable query correctness. To be safe, make sure mutable queries have unique access to the components they query.
Auto Trait Implementations§
impl<'w, 's, Q, F> !RefUnwindSafe for QueryParIter<'w, 's, Q, F>
impl<'w, 's, Q, F> Send for QueryParIter<'w, 's, Q, F>
impl<'w, 's, Q, F> Sync for QueryParIter<'w, 's, Q, F>
impl<'w, 's, Q, F> Unpin for QueryParIter<'w, 's, Q, F>
impl<'w, 's, Q, F> !UnwindSafe for QueryParIter<'w, 's, Q, F>
Blanket Implementations§
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere T: Any,
source§fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
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 + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
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)
fn as_any(&self) -> &(dyn Any + 'static)
&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)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.