Struct PropertyStore 

pub struct PropertyStore<K>
where
    K: Hash + Eq,
{ /* private fields */ }

Look-up table for property values.

Implementations

impl<K: Hash + Eq> PropertyStore<K>

pub fn new() -> Self

Create an empty property store.

pub fn insert<V: Into<PropertyValue>>( &mut self, key: K, value: V, ) -> Option<PropertyValue>

Insert a property. Returns the old property value if there was already a property stored under this key.

pub fn get<Q>(&self, key: &Q) -> Option<&PropertyValue>

where K: Borrow<Q>, Q: Eq + Hash + ?Sized,

Get a property value by the property key.

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

where K: Borrow<Q>, Q: Eq + Hash + ?Sized,

Check if the key is contained in this property store.

pub fn get_string<Q>(&self, key: &Q) -> Option<&RcString>

where K: Borrow<Q>, Q: Eq + Hash + ?Sized,

Get a string property value by key. If the property value is not a string None is returned.

Trait Implementations

impl<K> Clone for PropertyStore<K>

where K: Hash + Eq + Clone,

fn clone(&self) -> PropertyStore<K>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K> Debug for PropertyStore<K>

where K: Hash + Eq + Debug,

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

Formats the value using the given formatter.

impl<K: Hash + Eq> Default for PropertyStore<K>

fn default() -> Self

Returns the “default value” for a type.