Struct widgetry::mapspace::world::DummyID [−][src]
pub struct DummyID(usize);
Expand description
If you don’t ever need to refer to objects in a World
, you can auto-assign dummy IDs.
Tuple Fields
0: usize
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for DummyID
impl UnwindSafe for DummyID
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<T> CallHasher for T where
T: Hash,
impl<T> CallHasher for T where
T: Hash,
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: 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
. Read more
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub 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
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub 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
Compare self to key
and return true
if they are equal.
Instruments this type with the provided Span
, returning an
Instrumented
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type Output = T
type Output = T
Should always be Self