Macro tuifw::widget

macro_rules! widget {
    (
        #[widget($Widget:ident $(, init=$init:ident)? $(, drop=$drop:ident)?)]
        $vis:vis struct $name:ident {
            $($(
                $(#[property$(($($attrs:tt)*))?])?
                $field_name:ident : $field_ty:ty
            ),+ $(,)?)?
        }
    ) => { ... };
}