Enum OneOrMany 

pub enum OneOrMany<T> {
    One(T),
    Many(Vec<T>),
}

Represents a deserializable collection of T that may be also trivially deserialized from a single instance of T.

Variants

One(T)

A single instance of T.

Many(Vec<T>)

A collection of T.

Implementations

impl<T> OneOrMany<T>

pub fn len(&self) -> usize

Returns the expected number of elements held in this collection, regardless of representation.

Trait Implementations

impl<'de, T> Deserialize<'de> for OneOrMany<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> From<OneOrMany<T>> for BTreeSet<T>

where T: Ord,

fn from(value: OneOrMany<T>) -> Self

Converts to this type from the input type.

impl<T> From<OneOrMany<T>> for HashSet<T>

where T: Eq + Hash,

fn from(value: OneOrMany<T>) -> Self

Converts to this type from the input type.

impl<T> From<OneOrMany<T>> for Vec<T>

fn from(value: OneOrMany<T>) -> Self

Converts to this type from the input type.

impl<T> IntoIterator for OneOrMany<T>

type Item = T

The type of the elements being iterated over.

type IntoIter = IntoIter<T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.