Struct Simple 

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

Carries a value with an undo action

Trait Implementations

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

fn undo(self) -> Self::Undo

Returns the result of the undo function

let v = rewind::simple(4, |v| v + 2);
assert_eq!(v.undo(), 6);

fn decay(self) -> Self::Decay

Returns the original value

let v = rewind::simple(4, |v| v + 2);
assert_eq!(v.decay(), 4);

type Undo = R

type Decay = T

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

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

Formats the value using the given formatter.

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

fn drop(&mut self)

Executes the destructor for this type.