Struct async_component_core::StateCell

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

Track change of value and notify the Executor. This struct has no method and implements Deref, DerefMut. When inner value is mutable dereferenced, it changes status and wake pending task. This will also wake pending task when the cell is dropped.

Implementations

impl<T> StateCell<T>

pub const fn new(inner: T) -> Self

Create new StateCell

pub fn invalidate(this: &mut Self)

Invalidate this StateCell. It wakes task if there is any waker pending.

pub fn poll_state(this: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<()>where
    Self: Unpin,

Check if there are any changes or saves waker to wake task to notify when the value is changed.

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(value: T) -> Self

Converts to this type from the input type.