Struct Owning 

pub struct Owning<T, Undo: FnOnce(T) -> T> { /* private fields */ }

Caries an undo operation + an owned mutable value

See own for examples

Implementations

impl<T, Undo: FnOnce(T) -> T> Owning<T, Undo>

pub fn get(&self) -> &T

pub fn get_mut(&mut self) -> &mut T

Trait Implementations

impl<T, Undo: FnOnce(T) -> T> Atom for Owning<T, Undo>

fn decay(self) -> Self::Decay

Returns the modified part

let mut items = rewind::own_id(vec!["hello", "world"]);
items.push("wow");
let items = items.decay();
assert_eq!(items.get(2), Some(&"wow"));

type Undo = T

type Decay = T

fn undo(self) -> Self::Undo

Undo the operation

impl<T: Debug, Undo: FnOnce(T) -> T> Debug for Owning<T, Undo>

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

Formats the value using the given formatter.

impl<T, Undo: FnOnce(T) -> T> Deref for Owning<T, Undo>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T, Undo: FnOnce(T) -> T> DerefMut for Owning<T, Undo>

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<T, Undo: FnOnce(T) -> T> Drop for Owning<T, Undo>

fn drop(&mut self)

Executes the destructor for this type.