Possibly, but there are other kinds of compromises such as allowing arbitrary order only within a class, the C++ way. Or another one: the first (quick) pass tre

Possibly, but there are other kinds of compromises such as allowing arbitrary order only within a class, the C++ way. Or another one: the first (quick) pass treats all function and reference type definitions as forward declarations and skips the details. This way the compiler might be able to do more permissive compilation though not 100% accurate like Swift currently does.