lazy_async_promise

Trait Promise

Source 
pub trait Promise {
    // Required methods
    fn poll_state(&mut self) -> &DataState;
    fn update(&mut self);
}
Expand description

Maybe this should rather be called “LazyUpdating”? Implementors can react to polling by queueing an update if needed. Update should force an update.

Required Methods§

Source

fn poll_state(&mut self) -> &DataState

Polls the promise, triggers update if state is DataState::Uninitialized

Source

fn update(&mut self)

Clears the data cache and immediately triggers an update

Implementors§