Enum Either 

pub enum Either<A, B> {
    Left(A),
    Right(B),
}

A value that can be one of two types.

Variants

Left(A)

Right(B)

Implementations

impl<A, B> Either<A, B>

pub fn is_left(&self) -> bool

pub fn is_right(&self) -> bool

pub fn left(self) -> Option<A>

pub fn right(self) -> Option<B>

Trait Implementations

impl<A, B> Clone for Either<A, B>

where A: Clone, B: Clone,

fn clone(&self) -> Either<A, B>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<A, B> Debug for Either<A, B>

where A: Debug, B: Debug,

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

Formats the value using the given formatter.

impl<A, B> PartialEq for Either<A, B>

where A: PartialEq, B: PartialEq,

fn eq(&self, other: &Either<A, B>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A, B> Serialize for Either<A, B>

where A: Serialize, B: Serialize,

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<A, B> StructuralPartialEq for Either<A, B>