Trait Variance
pub trait Variance: PrivateItems + DefaultA marker trait for phantom variance types.
Implementors
impl Variance for PhantomContravariantLifetime<'_>impl Variance for PhantomCovariantLifetime<'_>impl Variance for PhantomInvariantLifetime<'_>impl<T> Variance for PhantomContravariant<T> where T: ?Sized,impl<T> Variance for PhantomCovariant<T> where T: ?Sized,impl<T> Variance for PhantomInvariant<T> where T: ?Sized,