Yes. D metaprogramming is mostly based around template and it gives you compile-time traits which you can use to query structs/classes for their fields, determining if something is an array or a pointer etc.
This way, you can write a serialize(foo) function which will work for any type, without needing any derives or marking the type as Serializable like in Java.
The closest equivalent to derive in D would be a mixin. You could declare a mixin which autogenerates the toJSON() fromJSON() methods based on the fields of a struct.
