Struct StringSet 

pub struct StringSet { /* private fields */ }

A set of String values backed by a sorted Vec for deterministic output.

Implementations

impl StringSet

pub fn new() -> Self

Create an empty set.

pub fn insert(&mut self, item: impl Into<String>) -> bool

Insert item. No-op if already present. Returns true if new.

pub fn contains(&self, item: &str) -> bool

Return true if item is in the set.

pub fn remove(&mut self, item: &str) -> bool

Remove item. Returns true if it was present.

pub fn len(&self) -> usize

Return the number of elements.

pub fn is_empty(&self) -> bool

Return true if empty.

pub fn iter(&self) -> impl Iterator<Item = &str>

Iterate over items in sorted order.

pub fn union(&self, other: &StringSet) -> StringSet

Compute the union of self and other.

pub fn intersection(&self, other: &StringSet) -> StringSet

Compute the intersection of self and other.

pub fn difference(&self, other: &StringSet) -> StringSet

Compute the difference self \ other.

Trait Implementations

impl Clone for StringSet

fn clone(&self) -> StringSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StringSet

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

Formats the value using the given formatter.

impl Default for StringSet

fn default() -> StringSet

Returns the “default value” for a type.