Struct kdb::Dictionary

#[repr(transparent)]pub struct Dictionary { /* fields omitted */ }

A key value based dictionary.

Implementations

impl Dictionary

pub fn len(&self) -> usize

The number of items in the dictionary.

pub fn is_empty(&self) -> bool

Returns true if the dictionary has no items.

pub fn keys(&self) -> &[KBox<Any>]

Gets a slice containing all the keys in this dictionary.

pub fn values(&self) -> &[KBox<Any>]

Gets a slice containing all the values in this dictionary.

pub fn insert(&mut self, key: impl Into<KBox<Any>>, value: impl Into<KBox<Any>>)

Insert a specified key and value at the end of the dictionary. No checks are done on uniqueness so duplicates are possible.

pub fn get<T: Into<KBox<Any>>>(&self, key: T) -> Option<&KBox<Any>>

Gets a value by key. Note that KDB dictionaries are treated as unordered and hence this is an O(n) operation.

pub fn iter(&self) -> impl Iterator<Item = (&KBox<Any>, &KBox<Any>)>

An iterator through every value in the KDB object

Trait Implementations

impl AsRef<Any> for Dictionary

fn as_ref(&self) -> &Any

Performs the conversion.

impl<T> Index<T> for Dictionary where
    T: Into<KBox<Any>>, 

type Output = Any

The returned type after indexing.

fn index(&self, index: T) -> &Self::Output

Performs the indexing (container[index]) operation.

impl TryFrom<&'_ Any> for &Dictionary

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(any: &Any) -> Result<Self, Self::Error>

Performs the conversion.