Enum Sum 

pub enum Sum<L, R> {
    Left(L),
    Right(R),
}

A sum of two types (enum with two variants).

Sums chain to represent multiple enum variants: Sum<A, Sum<B, Sum<C, Void>>> represents an enum with variants A, B, C.

Variants

Left(L)

The left (earlier) variant.

Right(R)

The right (later) variant or remaining variants.

Trait Implementations

impl<L: Clone, R: Clone> Clone for Sum<L, R>

fn clone(&self) -> Sum<L, R>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<L: Debug, R: Debug> Debug for Sum<L, R>

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

Formats the value using the given formatter.

impl<L: Diff + Clone, R: Diff + Clone> Diff for Sum<L, R>

type Diff = SumDiff<<L as Diff>::Diff, <R as Diff>::Diff, L, R>

The diff representation for this type.

fn diff(old: &Self, new: &Self) -> Self::Diff

Compute the diff from old to new.

impl<L: Hash, R: Hash> Hash for Sum<L, R>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<L: PartialEq, R: PartialEq> PartialEq for Sum<L, R>

fn eq(&self, other: &Sum<L, R>) -> 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<L: Patch + Clone, R: Patch + Clone> Patch for Sum<L, R>

fn patch(old: &Self, diff: &Self::Diff) -> Self

Apply the diff to old to produce new.

impl<L, R: SumLen> SumLen for Sum<L, R>

fn sum_len() -> usize

impl<L: Copy, R: Copy> Copy for Sum<L, R>

impl<L: Eq, R: Eq> Eq for Sum<L, R>

impl<L, R> StructuralPartialEq for Sum<L, R>