Struct r::object::CowObj

pub struct CowObj<T: Clone>(pub Rc<RefCell<Rc<T>>>);

Internal Data representation for copy-on-write semantics.

Tuple Fields

0: Rc<RefCell<Rc<T>>>

Implementations

impl<T: Clone> CowObj<T>

pub fn new(x: Rc<RefCell<Rc<T>>>) -> Self

Create a new instance

pub fn inner_rc(&self) -> Rc<T>

pub fn with_inner_mut<F, R>(&self, f: F) -> R

where F: FnOnce(&mut T) -> R,

Get mutable access to the internal vector. In case more than one reference to the internal data exists, the vector is cloned.

pub fn borrow(&self) -> Ref<'_, Rc<T>>

Borrow the internal data immutably.

impl<T: Clone> CowObj<Vec<T>>

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn iter(&self) -> CowObjIter<T>

Trait Implementations

impl<T: Clone> Clone for CowObj<T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Clone> Debug for CowObj<T>

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

Formats the value using the given formatter.

impl<T: Default + Clone> Default for CowObj<T>

fn default() -> CowObj<T>

Returns the “default value” for a type.

impl From<CowObj<Vec<OptionNA<String>>>> for Naming

fn from(value: CowObj<Vec<Character>>) -> Self

Converts to this type from the input type.

impl From<CowObj<Vec<OptionNA<String>>>> for Vector

fn from(x: CowObj<Vec<Character>>) -> Self

Converts to this type from the input type.

impl<T: Clone> From<CowObj<Vec<T>>> for Rep<T>

fn from(value: CowObj<Vec<T>>) -> Self

Converts to this type from the input type.

impl<T: Clone> From<T> for CowObj<T>

fn from(x: T) -> Self

Converts to this type from the input type.

impl<T: Clone> IntoIterator for CowObj<Vec<T>>

type Item = T

The type of the elements being iterated over.

type IntoIter = CowObjIter<T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<T: PartialEq + Clone> PartialEq for CowObj<T>

fn eq(&self, other: &CowObj<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: Clone> ViewMut for CowObj<T>

fn view_mut(&self) -> Self

Create a mutable view on the data.

impl<T: Clone> StructuralPartialEq for CowObj<T>