Enum compose_spec::ItemOrList

pub enum ItemOrList<T> {
    Item(T),
    List(IndexSet<T>),
}

A single item or a list of unique items.

Variants

Item(T)

A single item.

List(IndexSet<T>)

A list of unique items.

Implementations

impl<T> ItemOrList<T>

pub fn as_item(&self) -> Option<&T>

Returns Some if a single item or the list contains exactly one element.

pub const fn as_list(&self) -> Option<&IndexSet<T>>

Returns Some if a list.

impl<T> ItemOrList<T>

where T: Eq + Hash,

pub fn into_list(self) -> IndexSet<T>

Convert into a list.

A new IndexSet is created if a single item.

Trait Implementations

impl<T: Clone> Clone for ItemOrList<T>

fn clone(&self) -> ItemOrList<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for ItemOrList<T>

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

Formats the value using the given formatter.

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

where T: Deserialize<'de> + Eq + Hash,

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl<T> From<IndexSet<T>> for ItemOrList<T>

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

Converts to this type from the input type.

impl<T> From<ItemOrList<T>> for IndexSet<T>

where T: Eq + Hash,

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

Converts to this type from the input type.

impl<T> From<T> for ItemOrList<T>

fn from(value: T) -> Self

Converts to this type from the input type.

impl<T> PartialEq for ItemOrList<T>

where T: Eq + Hash,

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl<T> Serialize for ItemOrList<T>

where T: Eq + Hash + Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Eq + Hash> Eq for ItemOrList<T>