Struct ValueSet 

pub struct ValueSet { /* private fields */ }

A set of Values.

Provides hash-based deduplication with well-defined semantics for every Value variant, including future floating-point variants (which will use bitwise comparison so NaN == NaN and +0.0 != -0.0). Value itself does not implement Hash/Eq because the right float policy is context-dependent; ValueSet picks the policy suitable for deduplication.

Implementations

impl ValueSet

pub fn new() -> ValueSet

Creates an empty set.

pub fn with_capacity(capacity: usize) -> ValueSet

Creates an empty set with capacity for at least capacity values.

pub fn insert(&mut self, value: Value) -> bool

Inserts a value into the set. Returns true if the value was not already present.

pub fn len(&self) -> usize

Returns the number of values in the set.

pub fn is_empty(&self) -> bool

Returns true if the set contains no values.

Trait Implementations

impl Clone for ValueSet

fn clone(&self) -> ValueSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValueSet

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

Formats the value using the given formatter.

impl Default for ValueSet

fn default() -> ValueSet

Returns the “default value” for a type.