Trait Poolable 

pub trait Poolable {
    // Required methods
    fn empty() -> Self;
    fn reset(&mut self);
    fn capacity(&self) -> usize;

    // Provided method
    fn really_dropped(&mut self) -> bool { ... }
}

Trait for poolable objects

Required Methods

fn empty() -> Self

allocate a new empty collection

fn reset(&mut self)

empty the collection and reset it to it’s default state so it can be put back in the pool.

fn capacity(&self) -> usize

return the capacity of the collection

Provided Methods

fn really_dropped(&mut self) -> bool

return true if the object has really been dropped, e.g. if you’re pooling an Arc then Arc::get_mut().is_some() == true.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Poolable for String

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

impl<K, R> Poolable for HashSet<K, R>

where K: Hash + Eq, R: Default + BuildHasher,

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

impl<K, R> Poolable for IndexSet<K, R>

where K: Hash + Eq, R: Default + BuildHasher,

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

impl<K, V, R> Poolable for HashMap<K, V, R>

where K: Hash + Eq, R: Default + BuildHasher,

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

impl<K, V, R> Poolable for IndexMap<K, V, R>

where K: Hash + Eq, R: Default + BuildHasher,

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

impl<T> Poolable for VecDeque<T>

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

impl<T> Poolable for Vec<T>

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

impl<T: Poolable> Poolable for Option<T>

fn empty() -> Self

fn reset(&mut self)

fn capacity(&self) -> usize

fn really_dropped(&mut self) -> bool

Implementors