Trait std::ops::DispatchFromDyn

pub trait DispatchFromDyn<T> { }

🔬 This is a nightly-only experimental API. (dispatch_from_dyn)

这用于对象安全，以检查是否可以分派方法的接收者类型。

trait 的示例实现:

impl<T: ?Sized, U: ?Sized> DispatchFromDyn<Rc<U>> for Rc<T>
where
    T: Unsize<U>,
{}

Implementors

impl<'a, T, U> DispatchFromDyn<&'a U> for &'a T where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<'a, T, U> DispatchFromDyn<&'a mut U> for &'a mut T where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<P, U> DispatchFromDyn<Pin<U>> for Pin<P> where
    P: DispatchFromDyn<U>, 

impl<T, U> DispatchFromDyn<*const U> for *const T where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<T, U> DispatchFromDyn<*mut U> for *mut T where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<T, U> DispatchFromDyn<Box<U, Global>> for Box<T, Global> where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<T, U> DispatchFromDyn<NonNull<U>> for NonNull<T> where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<T, U> DispatchFromDyn<Rc<U>> for Rc<T> where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<T, U> DispatchFromDyn<Weak<U>> for std::rc::Weak<T> where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<T, U> DispatchFromDyn<Arc<U>> for Arc<T> where
    T: Unsize<U> + ?Sized,
    U: ?Sized, 

impl<T, U> DispatchFromDyn<Weak<U>> for std::sync::Weak<T> where
    T: Unsize<U> + ?Sized,
    U: ?Sized,