Struct Sequence 

pub struct Sequence<S> { /* private fields */ }

A sequence of reversible operations applied in order.

forward applies all operations left-to-right. backward undoes them right-to-left (stack discipline).

Implementations

impl<S> Sequence<S>

pub fn new(ops: Vec<Box<dyn Reversible<S>>>) -> Self

Create a sequence from a list of operations.

pub fn empty() -> Self

Create an empty sequence.

pub fn with_label(self, label: &'static str) -> Self

Set a label for this sequence.

pub fn push(&mut self, op: Box<dyn Reversible<S>>)

Add an operation to the sequence.

pub fn len(&self) -> usize

Number of operations in the sequence.

pub fn is_empty(&self) -> bool

Whether the sequence is empty.

Trait Implementations

impl<S> Debug for Sequence<S>

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

Formats the value using the given formatter.

impl<S> Reversible<S> for Sequence<S>

fn forward(&self, state: &mut S)

Apply the operation.

fn backward(&self, state: &mut S)

Undo the operation (apply the inverse).

fn description(&self) -> &str

Human-readable description of this operation.