Function emplacable::rc_new_with

pub fn rc_new_with<T>(emplacable: Emplacable<T, impl EmplacableFn<T>>) -> Rc<T>where
    T: ?Sized,

Like Rc::new, but takes an Emplacer<T, _> instead of T directly.

Runs the contained unsized-value-returning closure, and returns the result emplaced into an Rc.