Macro kobold::prelude::bind

macro_rules! bind {
    ($hook:ident: $(let $v:ident = move |$e:tt $(: $e_ty:ty)?| $body:expr;)+) => { ... };
}

Binds a closure to a given Hook. In practice:

bind! { count:
    let increment = move |_| *count += 1;
    let decrement = move |_| *count -= 1;
}

Desugars into:

let increment = count.bind(move |count, _| *count += 1);
let decrement = count.bind(move |count, _| *count -= 1);