#[repr(C)]pub struct Handle<T> {
pub ptr: *const T,
pub _phantom_0: PhantomData<UnsafeCell<T>>,
}
Expand description
Reference to a T that has been rooted elsewhere. This is most useful as a parameter type, which guarantees that the T lvalue is properly rooted. See “Move GC Stack Rooting” above.
If you want to add additional methods to Handle for a specific
specialization, define a HandleOperations
Fields§
§ptr: *const T
§_phantom_0: PhantomData<UnsafeCell<T>>
Implementations§
Trait Implementations§
source§impl<T> From<T> for Handle<<T as IntoHandle>::Target>where
T: IntoHandle,
impl<T> From<T> for Handle<<T as IntoHandle>::Target>where T: IntoHandle,
source§impl<T> PartialEq<Handle<T>> for Handle<T>where
T: PartialEq<T>,
impl<T> PartialEq<Handle<T>> for Handle<T>where T: PartialEq<T>,
impl<T> Copy for Handle<T>where T: Copy,
impl<T> StructuralPartialEq for Handle<T>
Auto Trait Implementations§
impl<T> !RefUnwindSafe for Handle<T>
impl<T> !Send for Handle<T>
impl<T> !Sync for Handle<T>
impl<T> Unpin for Handle<T>where T: Unpin,
impl<T> UnwindSafe for Handle<T>where T: UnwindSafe + RefUnwindSafe,
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