Function extern_spec_T_Option_T_inspect 

pub fn extern_spec_T_Option_T_inspect<T, F: FnOnce(&T)>(
    self_: Option<T>,
    f: F,
) -> Option<T>

extern spec for Option<T>::inspect

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

requires

match self { None => true, Some(t) => f.precondition((&t,)) }

ensures

result == self

ensures

match self {
    None => true,
    Some(t) => f.postcondition_once((&t,), ()),
}