Trait Empty 

pub trait Empty {
    // Required method
    fn is_empty(&self) -> bool;
}

Required Methods

fn is_empty(&self) -> bool

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Empty for ()

fn is_empty(&self) -> bool

impl<K, V> Empty for BTreeMap<K, V>

fn is_empty(&self) -> bool

impl<K, V> Empty for HashMap<K, V>

fn is_empty(&self) -> bool

impl<K: Eq + Hash, V> Empty for DashMap<K, V>

fn is_empty(&self) -> bool

impl<K: Eq + Hash> Empty for DashSet<K>

fn is_empty(&self) -> bool

impl<T: Empty> Empty for Arc<T>

fn is_empty(&self) -> bool

impl<T: Empty> Empty for Box<T>

fn is_empty(&self) -> bool

impl<T: Empty> Empty for Rc<T>

fn is_empty(&self) -> bool

impl<V> Empty for BTreeSet<V>

fn is_empty(&self) -> bool

impl<V> Empty for BinaryHeap<V>

fn is_empty(&self) -> bool

impl<V> Empty for HashSet<V>

fn is_empty(&self) -> bool

impl<V> Empty for LinkedList<V>

fn is_empty(&self) -> bool

impl<V> Empty for Option<V>

fn is_empty(&self) -> bool

impl<V> Empty for Vec<V>

fn is_empty(&self) -> bool

impl<V> Empty for VecDeque<V>

fn is_empty(&self) -> bool

Implementors

impl<K: Eq + Hash, V> Empty for KeyMutex<K, V>

impl<K: Eq + Hash, V> Empty for KeyRwLock<K, V>