Struct Memo 

pub struct Memo<T> { /* private fields */ }

A “memoized” parameters wrapper.

This type simplifies diffing management for standalone parameters.

Implementations

impl<T: Diff + Clone> Memo<T>

pub fn new(value: T) -> Self

Construct a new Memo.

This clones the provided value to maintain a baseline for diffing.

pub fn update_memo<E: EventQueue>(&mut self, event_queue: &mut E)

Generate events if the inner value has changed.

This will also clone the inner value and assign it to the baseline. This may be inneficient if cloning is slow.

Trait Implementations

impl<T: Clone> Clone for Memo<T>

fn clone(&self) -> Memo<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Memo<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for Memo<T>

fn default() -> Memo<T>

Returns the “default value” for a type.

impl<T> Deref for Memo<T>

type Target = T

The resulting type after dereferencing.

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

Dereferences the value.

impl<T> DerefMut for Memo<T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T: Copy> Copy for Memo<T>