Enum Either 

pub enum Either<Own, Base> {
    Own(Own),
    Direct(Base),
}

A 2-variant generic enum, useful for writing implementations that provide some own variants on those passed on directly to a base.

It implements various traits depending on the own and base trait; currently, just as AsRef.

Caveats

Do not use this to extend own enums, as those will become types with their fixed layout that might easily use the very same discriminator field as the underlying type, and thus defeat possible optimizations.

Variants

Own(Own)

Direct(Base)

Trait Implementations

impl<T: ?Sized, Own: AsRef<T>, Base: AsRef<T>> AsRef<T> for Either<Own, Base>

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<Own: Clone, Base: Clone> Clone for Either<Own, Base>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<Own: Debug, Base: Debug> Debug for Either<Own, Base>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<Own: Eq, Base: Eq> Eq for Either<Own, Base>

impl<Own: PartialEq, Base: PartialEq> PartialEq for Either<Own, Base>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<Own: PartialEq, Base: PartialEq> StructuralPartialEq for Either<Own, Base>