Struct DataCategories 

pub struct DataCategories(/* private fields */);

An efficient container for data categories that avoids allocations.

It is a read only and has set like properties, allowing for fast comparisons.

Implementations

impl DataCategories

pub fn new() -> Self

Creates new and empty DataCategories.

pub fn from_slice(slice: &[DataCategory]) -> Self

Creates a new DataCategories from the supplied slice of DataCategory values.

pub fn add(&self, category: DataCategory) -> Option<Self>

Adds a data category to Self.

Returns None if the category was already contained, otherwise creates a new Self with the category added.

pub fn contains(&self, category: &DataCategory) -> bool

Returns true iff the category is contained.

pub fn iter(&self) -> DataCategoryIterator

Returns an iterator over this DataCategories container.

pub fn len(&self) -> usize

Returns the number of categories in this container.

pub fn is_empty(&self) -> bool

Returns true iff this container contains no categories.

Trait Implementations

impl Clone for DataCategories

fn clone(&self) -> DataCategories

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataCategories

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

Formats the value using the given formatter.

impl Default for DataCategories

fn default() -> DataCategories

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DataCategories

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

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<const N: usize> From<[DataCategory; N]> for DataCategories

fn from(categories: [DataCategory; N]) -> Self

Converts to this type from the input type.

impl<const N: usize> From<SmallVec<[DataCategory; N]>> for DataCategories

fn from(categories: SmallVec<[DataCategory; N]>) -> Self

Converts to this type from the input type.

impl FromIterator<DataCategory> for DataCategories

fn from_iter<T: IntoIterator<Item = DataCategory>>(iter: T) -> Self

Creates a value from an iterator.

impl Hash for DataCategories

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 PartialEq for DataCategories

fn eq(&self, other: &DataCategories) -> 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 Serialize for DataCategories

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for DataCategories

impl Eq for DataCategories

impl StructuralPartialEq for DataCategories