Struct Attributes 

pub struct Attributes {
    pub attrs: SmallVec<[(Arc<str>, Box<RObject>); 2]>,
}

Attributes attached to R objects Optimized with SmallVec to avoid heap allocation for common case of 0-2 attributes

Fields

attrs: SmallVec<[(Arc<str>, Box<RObject>); 2]>

Most R objects have 0-2 attributes (names, class, dim, etc.) SmallVec stores up to 2 inline, avoiding HashMap overhead Box breaks the recursion cycle between Attributes and RObject

Implementations

impl Attributes

pub fn new() -> Self

pub fn insert(&mut self, key: Arc<str>, value: RObject)

pub fn get(&self, key: &str) -> Option<&RObject>

pub fn is_empty(&self) -> bool

pub fn iter(&self) -> impl Iterator<Item = (&Arc<str>, &RObject)>

Get iterator over attribute entries

Trait Implementations

impl Clone for Attributes

fn clone(&self) -> Attributes

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Attributes

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

Formats the value using the given formatter.

impl Default for Attributes

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Attributes

fn eq(&self, other: &Attributes) -> 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 StructuralPartialEq for Attributes