http://josephdepqbvoq7tm7uvynwmsji4354zmd3yp3rrtc245rilvq4ixayd.onion/posts/partial-in-swift
Partial < ValueType > ( ) } set { values [ key ] = newValue } } } partialOrder [ \ . address ] [ \ . name ] // nil partialOrder [ \ . address ] [ \ . name ] = "Johnny Appleseed" partialOrder [ \ . address ] [ \ . name ] // "Johnny Appleseed" However, because it will always return a Partial , there will be an issue if the value has been explicitly set elsewhere: partialOrder [ \ . address ] = Address ( name : "Johnny...