Enum Either 

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

Either type.

Variants

Left(A)

Left variant.

Right(B)

Right variant.

Implementations

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

pub fn is_left(&self) -> bool

Is Left?

pub fn is_right(&self) -> bool

Is Right?

pub fn unwrap_left(self) -> A

Unwrap left.

pub fn unwrap_right(self) -> B

Unwrap right.

pub fn map_left<C, F: FnOnce(A) -> C>(self, f: F) -> Either<C, B>

Map left side.

pub fn map_right<D, G: FnOnce(B) -> D>(self, g: G) -> Either<A, D>

Map right side.

pub fn bimap<C, D, F: FnOnce(A) -> C, G: FnOnce(B) -> D>( self, f: F, g: G, ) -> Either<C, D>

Map both sides.

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

Convert to Option.

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

Convert to Option.

Trait Implementations

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

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

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

Formats the value using the given formatter.

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

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: Eq, B: Eq> Eq for Either<A, B>

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