Function extern_spec_T_Option_T_as_slice 

pub fn extern_spec_T_Option_T_as_slice<T>(self_: &Option<T>) -> &[T]

extern spec for Option<T>::as_slice

This is not a real function: its only use is for documentation.

terminates

ghost

ensures

match *self {
    None => result@.len() == 0,
    Some(t) => result@.len() == 1 && result@[0] == t
}