pub struct Holder<T, S>(_, _);
Expand description
Helper type allowing implementation of trait object for generic types multiple times. In practice this type is never used
Implementations
Auto Trait Implementations
impl<T, S> RefUnwindSafe for Holder<T, S> where
S: RefUnwindSafe,
T: RefUnwindSafe,
impl<T, S> Send for Holder<T, S> where
S: Send,
T: Send,
impl<T, S> Sync for Holder<T, S> where
S: Sync,
T: Sync,
impl<T, S> Unpin for Holder<T, S> where
S: Unpin,
T: Unpin,
impl<T, S> UnwindSafe for Holder<T, S> where
S: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more