Struct PersistentVector 

pub struct PersistentVector { /* private fields */ }

An immutable persistent vector backed by rpds::Vector.

Implementations

impl PersistentVector

pub fn empty() -> Self

pub fn from_vector(vector: VectorSync<Value>) -> Self

pub fn count(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn conj(&self, val: Value) -> Self

Append a value. O(log n) amortized.

pub fn nth(&self, idx: usize) -> Option<&Value>

Return the element at idx, or None if out of bounds.

pub fn peek(&self) -> Option<&Value>

Last element.

pub fn assoc_nth(&self, idx: usize, val: Value) -> Option<Self>

Return a new vector with element idx replaced, or appended if idx == len.

pub fn pop(&self) -> Option<Self>

Remove the last element. Returns None if empty.

pub fn iter(&self) -> impl Iterator<Item = &Value>

Iterate over elements in index order.

pub fn inner(&self) -> &VectorSync<Value>

Trait Implementations

impl Clone for PersistentVector

fn clone(&self) -> PersistentVector

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PersistentVector

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

Formats the value using the given formatter.

impl FromIterator<Value> for PersistentVector

fn from_iter<I: IntoIterator<Item = Value>>(iter: I) -> Self

Creates a value from an iterator.

impl PartialEq for PersistentVector

fn eq(&self, other: &Self) -> 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 Trace for PersistentVector

fn trace(&self, visitor: &mut MarkVisitor)