pub enum VTableRef<'a, V>where
V: ?Sized,{
Ref(&'a V),
Box(Box<V>),
}
Expand description
A VTable reference type.
Note we always need Drop because it’s possible to clone ValueRef’s contents, which need to know how to drop themselves.
Variants§
Implementations§
Trait Implementations§
impl<'a, V> StructuralPartialEq for VTableRef<'a, V>where
V: ?Sized,
Auto Trait Implementations§
impl<'a, V> Freeze for VTableRef<'a, V>where
V: ?Sized,
impl<'a, V> RefUnwindSafe for VTableRef<'a, V>where
V: RefUnwindSafe + ?Sized,
impl<'a, V> Send for VTableRef<'a, V>
impl<'a, V> Sync for VTableRef<'a, V>
impl<'a, V> Unpin for VTableRef<'a, V>where
V: ?Sized,
impl<'a, V> UnwindSafe for VTableRef<'a, V>
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneBytes for Twhere
T: Clone + 'static,
impl<T> CloneBytes for Twhere
T: Clone + 'static,
unsafe fn clone_bytes(src: &[MaybeUninit<u8>]) -> Box<[MaybeUninit<u8>]>
unsafe fn clone_from_bytes(dst: &mut [MaybeUninit<u8>], src: &[MaybeUninit<u8>])
unsafe fn clone_into_raw_bytes( src: &[MaybeUninit<u8>], dst: &mut [MaybeUninit<u8>], )
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> DebugBytes for Twhere
T: Debug + 'static,
impl<T> DebugBytes for Twhere
T: Debug + 'static,
Source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
Source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Converts
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
, which can then be
downcast
into Box<dyn ConcreteType>
where ConcreteType
implements Trait
.Source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Converts
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
, which 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)
Converts
&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)
Converts
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.