By using the interface,
it also
forces the user to include all of the attributes of each pin
such as
direction, max load, DC current, etc. Since class type enums
are references,
they are light, - and they should be immutable - so they are
thread safe aslo.
I'm not sure how you're using your enum. In Java, the only way
to perform a switch over an enum is if you know all the values
during compile time. Passing a type Enum into a function (i.e.
as opposed to "enum MyEnumType') requires using introspection
to pull the actual values out, and then a loop to scan through
them for your target value.
But if you've programmed a switch for a known enum type, then
that means the enum has already been implemented and there is
no chance for more than one type to be passed in.
So I'm confused.
I guess D does not see enums as enums, but rather as whatever
type the enum happens to implement. In java, all enums are
of enum type. So it's probably me that's confused.
-Eric
