Struct StateCell

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

Track change of value and signal to StateContext. This struct has no method and implements Deref, DerefMut. When inner value is mutable dereferenced, it is marked changed and send signal. This will also send signal when the cell is constructed or dropped.

Implementations

impl<T> StateCell<T>

pub fn new(inner: T) -> Self

Create new StateCell

pub fn invalidate(this: &mut Self)

Invalidate this StateCell. Send signal to context.

Trait Implementations

impl<T: Debug> Debug for StateCell<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for StateCell<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> Deref for StateCell<T>

type Target = T

The resulting type after dereferencing.

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

Dereferences the value.

impl<T> DerefMut for StateCell<T>

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

Mutably dereferences the value.

impl<T> Drop for StateCell<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T> From<T> for StateCell<T>

fn from(inner: T) -> Self

Converts to this type from the input type.

impl<T> State for StateCell<T>

type Output = ()

fn update(this: &mut Self) -> Option<Self::Output>