Struct TagSet 

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

A set of tags.

Implementations

impl TagSet

pub fn with_capacity(capacity: usize) -> Self

Creates a new, empty tag set with the given capacity.

pub fn is_empty(&self) -> bool

Returns true if the tag set is empty.

pub fn len(&self) -> usize

Returns the number of tags in the set.

pub fn insert_tag<T>(&mut self, tag: T)

where T: Into<Tag>,

Inserts a tag into the set.

If the tag is already present in the set, this does nothing.

pub fn remove_tags<T>(&mut self, tag_name: T) -> Option<Vec<Tag>>

where T: AsRef<str>,

Removes a tag, by name, from the set.

pub fn has_tag<T>(&self, tag: T) -> bool

where T: AsRef<str>,

Returns true if the given tag is contained in the set.

This matches the complete tag, rather than just the name.

pub fn get_single_tag<T>(&self, tag_name: T) -> Option<&Tag>

where T: AsRef<str>,

Gets a single tag, by name, from the set.

If multiple tags are present with the same name, the first tag with a matching name will be returned. If no tag in the set matches, None is returned.

pub fn retain<F>(&mut self, f: F)

where F: FnMut(&Tag) -> bool,

Retains only the tags specified by the predicate.

In other words, remove all tags t for which f(&t) returns false. This method operates in place, visiting each element exactly once in the original order, and preserves the order of the retained tags.

pub fn merge_missing(&mut self, other: Self)

Merges the tags from another set into this set.

If a tag from other is already present in this set, it will not be added.

pub fn merge_missing_shared(&mut self, other: &SharedTagSet)

Merges the tags from another shared set into this set.

If a tag from other is already present in this set, it will not be added.

pub fn into_shared(self) -> SharedTagSet

Consumes this TagSet and returns a shared, read-only version of it.

Trait Implementations

impl Clone for TagSet

fn clone(&self) -> TagSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TagSet

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

Formats the value using the given formatter.

impl Default for TagSet

fn default() -> TagSet

Returns the “default value” for a type.

impl Display for TagSet

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

Formats the value using the given formatter.

impl Extend<Tag> for TagSet

fn extend<T: IntoIterator<Item = Tag>>(&mut self, iter: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl From<Tag> for TagSet

fn from(tag: Tag) -> Self

Converts to this type from the input type.

impl From<TagSet> for SharedTagSet

fn from(tag_set: TagSet) -> Self

Converts to this type from the input type.

impl FromIterator<Tag> for TagSet

fn from_iter<I: IntoIterator<Item = Tag>>(iter: I) -> Self

Creates a value from an iterator.

impl<'a> IntoIterator for &'a TagSet

type Item = &'a Tag

The type of the elements being iterated over.

type IntoIter = Iter<'a, Tag>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl IntoIterator for TagSet

type Item = Tag

The type of the elements being iterated over.

type IntoIter = IntoIter<Tag>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl PartialEq<TagSet> for SharedTagSet

fn eq(&self, other: &TagSet) -> 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 PartialEq for TagSet

fn eq(&self, other: &TagSet) -> 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 TagSet

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

where __S: Serializer,

Serialize this value into the given Serde serializer.