A8-4-5: are partial moves allowed?

[cgpzs]

Are partial moves allowed by A8-4-5? If not, why not?

For example, consider the following snippet from Effective Modern C++ (Meyers), Item 25, page 169:

Code:

class Widget {
public:
   Widget(Widget&& rhs)
   : name(std::move(rhs.name)),
     p(std::move(rhs.p))
   { … }
   …

// rhs is rvalue reference
private:
   std::string name;
   std::shared_ptr<SomeDataStructure> p;
};