Struct DVec 

pub struct DVec<T> { /* private fields */ }

A persistent vector of T elements. Persistent collections change the trade-off relative to ordinary collections: they are very cheap to clone, but more expensive to update. Behind the scenes, DVec instances that are cloned from one another will share some part of their representation.

You may be accustomed to persistent APIs in other languages, where each mutation operation returns a new collection instead of modifying the collection in place. The DVec type, in contrast, behaves roughly like an ordinary vector, except that you can cheaply clone it. If you want to get a new collection with a given mutation, but leave the existing collection alone, use clone:

let mut vec1 = DVec::new();
vec1.push(22);
let mut vec2 = vec1.clone();
vec2.push(44);
assert_eq!(vec1.len(), 1);
assert_eq!(vec2.len(), 2);

Implementations

impl<T: Clone + Debug> DVec<T>

pub fn new() -> Self

pub fn get(&self, index: usize) -> Option<&T>

pub fn get_mut(&mut self, index: usize) -> Option<&mut T>

pub fn len(&self) -> usize

pub fn push(&mut self, element: T)

Trait Implementations

impl<T: Clone> Clone for DVec<T>

fn clone(&self) -> DVec<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for DVec<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Clone + Debug> Index<usize> for DVec<T>

type Output = T

The returned type after indexing.

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

Performs the indexing (container[index]) operation.

impl<T: Clone + Debug> IndexMut<usize> for DVec<T>

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

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

impl<T: Ord> Ord for DVec<T>

fn cmp(&self, other: &DVec<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T: PartialEq> PartialEq for DVec<T>

fn eq(&self, other: &DVec<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: PartialOrd> PartialOrd for DVec<T>

fn partial_cmp(&self, other: &DVec<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Eq> Eq for DVec<T>

impl<T> StructuralPartialEq for DVec<T>