Trait Model 

pub trait Model: Sized {
    type Msg: Send + 'static;

    // Required methods
    fn update(&mut self, msg: Self::Msg) -> Command<Self::Msg>;
    fn view(&self, frame: &mut Frame<'_>);
    fn handle_event(&self, event: Event) -> Option<Self::Msg>;

    // Provided methods
    fn init(&self) -> Command<Self::Msg> { ... }
    fn register_ontology(&self, _registry: &mut OntologyRegistry) { ... }
}

The core trait for application models (Elm Architecture).

Required Associated Types

type Msg: Send + 'static

The message type for this application.

Required Methods

fn update(&mut self, msg: Self::Msg) -> Command<Self::Msg>

Handle an event and return an updated model plus optional command.

fn view(&self, frame: &mut Frame<'_>)

Render the model into the terminal frame.

fn handle_event(&self, event: Event) -> Option<Self::Msg>

Convert a raw terminal event into an application message. Return None to ignore the event.

Provided Methods

fn init(&self) -> Command<Self::Msg>

Called once at startup. Return an initial command.

fn register_ontology(&self, _registry: &mut OntologyRegistry)

Called when the agent ontology is exported. Override to customize the registry.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors