Struct mgf::Pool

pub struct Pool<T> { /* fields omitted */ }

Growable array type that allows items to be removed and inserted without changing the indices of other entries.

Methods

impl<T> Pool<T>

fn new() -> Self

Create an empty Pool.

fn with_capacity(cap: usize) -> Self

Create an empty Pool large enough to fix cap items.

fn empty(&self) -> bool

Determines if the Pool is empty.

fn len(&self) -> usize

fn push(&mut self, item: T) -> usize

Push a new item to the Pool. Attempts to use spots left empty from removed items before performing a heap allocation.

fn remove(&mut self, i: usize) -> T

Marks an index as empty and adds it to the free list, allowing the spot to be reclaimed later.

fn iter<'a>(
    &'a self
) -> FilterMap<Iter<'a, PoolEntry<T>>, fn(_: &PoolEntry<T>) -> Option<&T>>

fn iter_mut<'a>(
    &'a mut self
) -> FilterMap<IterMut<'a, PoolEntry<T>>, fn(_: &mut PoolEntry<T>) -> Option<&mut T>>

Trait Implementations

impl<T> Index<usize> for Pool<T>

type Output = T

The returned type after indexing.

fn index(&self, i: usize) -> &T

Performs the indexing (container[index]) operation.

impl<T> IndexMut<usize> for Pool<T>

fn index_mut(&mut self, i: usize) -> &mut T

Performs the mutable indexing (container[index]) operation.

impl<T> Clone for Pool<T> where
    T: Clone, 

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T> IntoIterator for &'a Pool<T>

type Item = &'a T

The type of the elements being iterated over.

type IntoIter = FilterMap<Iter<'a, PoolEntry<T>>, fn(_: &PoolEntry<T>) -> Option<&T>>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'a, T> IntoIterator for &'a mut Pool<T>

type Item = &'a mut T

The type of the elements being iterated over.

type IntoIter = FilterMap<IterMut<'a, PoolEntry<T>>, fn(_: &mut PoolEntry<T>) -> Option<&mut T>>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.