Trait Queryable 

pub trait Queryable<T> {
    // Required method
    fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>;
}

Trait for types that can be queried.

Implemented for standard collections like Vec, HashMap, HashSet, etc.

Required Methods

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

Returns an iterator over references to items.

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> Queryable<V> for BTreeMap<K, V>

where K: Ord,

fn query_iter(&self) -> Box<dyn Iterator<Item = &V> + '_>

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

where K: Eq + Hash,

fn query_iter(&self) -> Box<dyn Iterator<Item = &V> + '_>

impl<T, E> Queryable<T> for Result<T, E>

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T, const N: usize> Queryable<T> for [T; N]

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T> Queryable<T> for BTreeSet<T>

where T: Ord,

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T> Queryable<T> for HashSet<T>

where T: Eq + Hash,

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T> Queryable<T> for LinkedList<T>

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T> Queryable<T> for Option<T>

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T> Queryable<T> for Vec<T>

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T> Queryable<T> for VecDeque<T>

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

impl<T> Queryable<T> for [T]

fn query_iter(&self) -> Box<dyn Iterator<Item = &T> + '_>

Implementors