Struct Map 

pub struct Map { /* private fields */ }

Represents a Map value.

Maps are cheap to clone.

Implementations

impl Map

pub fn new<K, V>( context: Option<&dyn EvaluationContext>, ty: impl Into<Type>, elements: impl IntoIterator<Item = (K, V)>, ) -> Result<Self>

where K: Into<Value>, V: Into<Value>,

Creates a new Map value.

Returns an error if a key or value did not coerce to the map’s key or value type, respectively.

Panics

Panics if the given type is not a map type.

pub fn ty(&self) -> Type

Gets the type of the Map value.

pub fn iter( &self, ) -> impl ExactSizeIterator<Item = (&Option<PrimitiveValue>, &Value)>

Iterates the elements of the map.

pub fn keys(&self) -> impl ExactSizeIterator<Item = &Option<PrimitiveValue>>

Iterates the keys of the map.

pub fn values(&self) -> impl ExactSizeIterator<Item = &Value>

Iterates the values of the map.

pub fn contains_key(&self, key: &Option<PrimitiveValue>) -> bool

Determines if the map contains the given key.

pub fn get(&self, key: &Option<PrimitiveValue>) -> Option<&Value>

Gets a value from the map by key.

pub fn len(&self) -> usize

Returns the number of elements in the map.

pub fn is_empty(&self) -> bool

Returns true if the map has no elements.

Trait Implementations

impl Clone for Map

fn clone(&self) -> Map

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Map

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

Formats the value using the given formatter.

impl Display for Map

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

Formats the value using the given formatter.

impl From<Map> for CompoundValue

fn from(value: Map) -> Self

Converts to this type from the input type.

impl From<Map> for Value

fn from(value: Map) -> Self

Converts to this type from the input type.