7.8 The `@' Type Descriptor
The `@' type descriptor is for a member (class and variable) type.
It is followed by type information for the offset basetype, a comma, and
type information for the type of the field being pointed to. (FIXME:
this is acknowledged to be gibberish. Can anyone say what really goes
Note that there is a conflict between this and type attributes
(see section 1.3 The String Field); both use type descriptor `@'.
Fortunately, the `@' type descriptor used in this C++ sense always
will be followed by a digit, `(', or `-', and type attributes
never start with those things.