Struct Stood 

pub struct Stood(Rev);

Which of the trail’s positions the document stands on: the rev whose document the head currently holds.

Not the head rev. A step authors a commit of its own, so the head moves forward when the document steps back; feeding it would make every undo look like a fresh state and the stack would grow instead of walking. What the trail tracks instead is where a step left the session, which is stable across a round trip — an undo and its redo return to the same Stood — and ordered along both halves of the trail, which is what makes a walk toward one terminate.

Tuple Fields

0: Rev

Implementations

impl Stood

pub fn of(trail: &Trail) -> Self

Trait Implementations

impl Clone for Stood

fn clone(&self) -> Stood

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Stood

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

Formats the value using the given formatter.

impl Default for Stood

fn default() -> Stood

Returns the “default value” for a type.

impl Ord for Stood

fn cmp(&self, other: &Stood) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Stood

fn eq(&self, other: &Stood) -> 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 PartialOrd for Stood

fn partial_cmp(&self, other: &Stood) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Stood

impl Eq for Stood

impl StructuralPartialEq for Stood