Struct LiveApp 

pub struct LiveApp<B: Backend> {
    ui: Ui<B>,
    on_error: ErrorHandler,
    app: RefCell<Option<App<B>>>,
}

Fields

ui: Ui<B>

on_error: ErrorHandler

app: RefCell<Option<App<B>>>

None until a program first loads.

Implementations

impl<B: Backend> LiveApp<B>

pub fn new(backend: B, on_error: ErrorHandler) -> Self

An app showing nothing yet; LiveApp::load gives it a program.

pub fn load(&self, program: Program) -> Result<(), RuntimeError>

Shows program in place of the version running now, keeping each state it still declares with the same name and type, or opens its windows if nothing runs yet.

Errors

When evaluating a starting value or building the UI fails. Whatever was showing before keeps running.

Panics

When program has errors; load only programs the checker accepted.

pub fn waker(&self, on_wake: WakeHandler) -> B::Waker

Returns something any thread can use to have on_wake run on the UI thread, where it may call LiveApp::load.

pub fn run(&self)

Runs the event loop until the app quits.

Trait Implementations

impl<B: Backend> Debug for LiveApp<B>

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

Formats the value using the given formatter.