Trait MapLike 

pub trait MapLike {
    type Key: Hash + Eq + Display + Clone;
    type Value: Debug;

    // Required methods
    fn contains_key(&self, key: &Self::Key) -> bool;
    fn is_empty(&self) -> bool;
}

Represents a generic map-like container with key-value pairs.

Required Associated Types

type Key: Hash + Eq + Display + Clone

The type of keys stored in the map.

type Value: Debug

The type of values stored in the map.

Required Methods

fn contains_key(&self, key: &Self::Key) -> bool

Returns true if the map contains the specified key.

fn is_empty(&self) -> bool

Returns true if the map is empty.

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<K, V, S> MapLike for AHashMap<K, V, S>

where K: Eq + Hash + Display + Clone, V: Debug, S: BuildHasher,

type Key = K

type Value = V

fn contains_key(&self, k: &K) -> bool

fn is_empty(&self) -> bool

impl<K, V, S> MapLike for HashMap<K, V, S>

where K: Eq + Hash + Display + Clone, V: Debug, S: BuildHasher,

type Key = K

type Value = V

fn contains_key(&self, k: &K) -> bool

fn is_empty(&self) -> bool

impl<K, V, S> MapLike for IndexMap<K, V, S>

where K: Eq + Hash + Display + Clone, V: Debug, S: BuildHasher,

type Key = K

type Value = V

fn contains_key(&self, k: &K) -> bool

fn is_empty(&self) -> bool

Implementors