Enum Reversibility 

pub enum Reversibility {
    Reversible,
    Irreversible,
}

Declares whether a dispatch transition may be undone.

Pass as the second argument to Engine::dispatch. The compiler enforces that callers cannot omit this declaration — there is no default.

Usage

use herdingcats::Reversibility;

// A normal game move the player can undo:
let _ = Reversibility::Reversible;

// A dice roll or randomised event that permanently advances history:
let _ = Reversibility::Irreversible;

Variants

Reversible

This transition can be undone via Engine::undo.

Irreversible

This transition is irreversible; committing it clears all undo/redo history.

Trait Implementations

impl Clone for Reversibility

fn clone(&self) -> Reversibility

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Reversibility

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

Formats the value using the given formatter.

impl PartialEq for Reversibility

fn eq(&self, other: &Reversibility) -> 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 Copy for Reversibility

impl Eq for Reversibility

impl StructuralPartialEq for Reversibility