Trait PinCoerceUnsized 

pub unsafe trait PinCoerceUnsized: Deref { }

🔬This is a nightly-only experimental API. (pin_coerce_unsized_trait #150112)

Trait that indicates that this is a pointer or a wrapper for one, where unsizing can be performed on the pointee when it is pinned.

Safety

Given a pointer of this type, the concrete type returned by its deref method and (if it implements DerefMut) its deref_mut method must be the same type and must not change without a modification. The following operations are not considered modifications:

• Moving the pointer.
• Performing unsizing coercions on the pointer.
• Performing dynamic dispatch with the pointer.
• Calling deref or deref_mut on the pointer.

The concrete type of a trait object is the type that the vtable corresponds to. The concrete type of a slice is an array of the same element type and the length specified in the metadata. The concrete type of a sized type is the type itself.

Implementors

impl<'a, T> PinCoerceUnsized for &'a T

where T: ?Sized,

impl<'a, T> PinCoerceUnsized for &'a mut T

where T: ?Sized,

impl<'b, T> PinCoerceUnsized for Ref<'b, T>

where T: ?Sized,

impl<'b, T> PinCoerceUnsized for RefMut<'b, T>

where T: ?Sized,

impl<T> PinCoerceUnsized for UniqueArc<T>

where T: ?Sized,

impl<T> PinCoerceUnsized for Pin<T>

where T: PinCoerceUnsized,

impl<T, A> PinCoerceUnsized for Box<T, A>

where A: Allocator, T: ?Sized,

impl<T, A> PinCoerceUnsized for Rc<T, A>

where A: Allocator, T: ?Sized,

impl<T, A> PinCoerceUnsized for UniqueRc<T, A>

where A: Allocator, T: ?Sized,

impl<T, A> PinCoerceUnsized for Arc<T, A>

where A: Allocator, T: ?Sized,