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#[macro_use(lift)] extern crate carboxyl; use carboxyl::{Signal, Stream}; pub trait Driver<Input> { type Output; fn output(&self) -> Self::Output; fn run(&mut self, input: Input); } #[derive(Clone)] pub struct Communication<Context, Event> { pub context: Signal<Context>, pub events: Stream<Event> } pub struct Component<State, Update, View, Effect> { pub init: State, pub update: Update, pub view: View, pub effect: Effect } pub fn interpret<Context, Event, Action, Intent>( inputs: Communication<Context, Event>, intent: Intent) -> Communication<Context, Action> where Context: Clone + Send + Sync + 'static, Event: Clone + Send + Sync + 'static, Action: Clone + Send + Sync + 'static, Intent: Fn(Context, Event) -> Option<Action> + Send + Sync + 'static { let events = inputs.context .snapshot(&inputs.events, intent) .filter_some(); Communication { context: inputs.context, events: events } } pub fn start<Context, Event, State, Update, View, Effect, ViewOut, EffectOut>( app: Component<State, Update, View, Effect>, inputs: Communication<Context, Event>) -> Communication<ViewOut, EffectOut> where Event: Clone + Send + Sync + 'static, State: Clone + Send + Sync + 'static, Context: Clone + Send + Sync + 'static, ViewOut: Clone + Send + Sync + 'static, EffectOut: Clone + Send + Sync + 'static, Update: Fn(State, Event) -> State + Send + Sync + 'static, View: Fn(Context, State) -> ViewOut + Send + Sync + 'static, Effect: Fn(State, Event) -> Option<EffectOut> + Send + Sync + 'static { let Component { init, update, view, effect } = app; let state = inputs.events.fold(init, update); Communication { context: lift!(view, &inputs.context, &state), events: state.snapshot(&inputs.events, effect).filter_some() } }