Functions can also be generic over references vs. move/copy semantics, e.g.: fn foo<T>(frob: T) where T: Borrow<Frob> { // Do something with frob.bor

Functions can also be generic over references vs. move/copy semantics, e.g.: fn foo<T>(frob: T) where T: Borrow<Frob> { // Do something with frob.borrow() } Due to monomorpization, foo is specialized for moves/clones when called as foo(frob) where frob is a value type or for borrows when called as foo(&frob). Similarly, you can use Clone, ToOwned or even Into for going in the opposite direction. Whether such functions are good taste in general is debatable ;).