Enum bevy_ecs::system::QuerySingleError [−][src]
Expand description
An error that occurs when evaluating a Query
as a single expected resulted via
Query::single
or Query::single_mut
.
Variants
NoEntities(&'static str)
Tuple Fields
0: &'static str
MultipleEntities(&'static str)
Tuple Fields
0: &'static str
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for QuerySingleError
impl Send for QuerySingleError
impl Sync for QuerySingleError
impl Unpin for QuerySingleError
impl UnwindSafe for QuerySingleError
Blanket Implementations
Mutably borrows from an owned value. Read more
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
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
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
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
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more