Struct async_ui_internal_utils::reactive_cell::ReactiveCell

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

Like a RefCell, but you can subscribe to changes.

In addition to the RefCell methods, ReactiveCell also provides until_change. After each time the cell is mutably borrowed, the Stream + Future returned by until_change will fire.

use futures_lite::future::FutureExt;
    async fn do_something_and_modify_cell(cell: &ReactiveCell<i32>) {
        // ...
        *cell.borrow_mut() += 1;
    }
    let cell = ReactiveCell::new(123);

    do_something_and_modify_cell(&cell).race(
        async {
            cell.until_change().await;
            println!("Modified!");
        }
    ).await;

Implementations

impl<T> ReactiveCell<T>

pub async fn for_each<F: FnMut(&T)>(&self, func: F)

impl<T> ReactiveCell<T>

pub fn until_change(&self) -> UntilChangeFuture<'_, T>

impl<T> ReactiveCell<T>

pub fn new(data: T) -> Self

pub fn borrow(&self) -> Ref<'_, T>

pub fn borrow_mut(&self) -> ReactiveCellBorrowMut<'_, T>

pub fn try_borrow(&self) -> Result<Ref<'_, T>, BorrowError>

pub fn try_borrow_mut( &self ) -> Result<ReactiveCellBorrowMut<'_, T>, BorrowMutError>

Trait Implementations

impl<T: Clone> Clone for ReactiveCell<T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for ReactiveCell<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for ReactiveCell<T>

fn default() -> Self

Returns the “default value” for a type.