Struct QueryLens

Source

pub struct QueryLens<'w, Q: QueryData, F: QueryFilter = ()> { /* private fields */ }

Expand description

Type returned from Query::transmute_lens containing the new QueryState.

Call query or into to construct the resulting Query

Implementations§

Source §

impl<'w, Q: QueryData, F: QueryFilter> QueryLens<'w, Q, F>

Source

pub fn query(&mut self) -> Query<'w, '_, Q, F>

Create a Query from the underlying QueryState.

Trait Implementations§

Source §

impl<'w, 'q, Q: QueryData, F: QueryFilter> From<&'q mut Query<'w, '_, Q, F>> for QueryLens<'q, Q, F>

Source §

fn from(value: &'q mut Query<'w, '_, Q, F>) -> QueryLens<'q, Q, F>

Converts to this type from the input type.

Source §

impl<'w, 's, Q: QueryData, F: QueryFilter> From<&'s mut QueryLens<'w, Q, F>> for Query<'w, 's, Q, F>

Source §

fn from(value: &'s mut QueryLens<'w, Q, F>) -> Query<'w, 's, Q, F>

Converts to this type from the input type.

Auto Trait Implementations§

§

impl<'w, Q, F> Freeze for QueryLens<'w, Q, F>
where <Q as WorldQuery>::State: Freeze, <F as WorldQuery>::State: Freeze,

§

impl<'w, Q, F> Unpin for QueryLens<'w, Q, F>
where <Q as WorldQuery>::State: Unpin, <F as WorldQuery>::State: Unpin,

§

impl<'w, Q, F = ()> !UnwindSafe for QueryLens<'w, Q, F>

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 §