reading-club
dyn* doesn't need to be special
Attendees: tmandry, eholk
dyn*
as a library (though this post doesn't quite show that)&move
using Box<T, &mut MaybeUninit<T>>
Box
becomes the universal way of saying "I own the value referred to by this handle"
T
I could turn it into Box<T, TransparentStorage<T>>
T
Box
, Rc
and Arc
become the universal way of saying I have a shared refcounted object
dyn* Trait + Clone
good enough to represent Arc<dyn Trait>
?
clone
clone the Arc
or the thing in the Arc
?CloneByValue
UnsafeCell
in your type.. we could auto-derive this somehow…dyn*
needs to be DerefMut
": Not necessarily. Pin
would be "hidden" by the dyn*
dyn* Trait
where Trait
has self: Pin<..>
methods means that "the pointer behind dyn*
is pinned"
dyn*
is Unpin
dyn*
<dyn*>::from(Box::pin(whatever))
Pin<Box<T>>: Unpin
dyn* &Trait
means you implement only &self
methods&dyn Trait: Trait
dyn* Trait: Trait
dyn* Trait: Deref<dyn Trait>
forall trait Trait: impl<T> Trait for Dyn<T> where T: Trait
dyn*
in a library)or
or
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