We'd like to eventually make something that was a case class a trait. So we'd like to be able to deprecate at least some of the methods that case classes generate.

In our case, the only important method to deprecate is the constructor - there's no reason to use the extractor or copy methods on this particular class, but the constructor is definitely used. So our specific problem would be solved if doing this:

case class Foo @deprecated(...) (bar: String)

resulted in the Foo.apply method being deprecated. More generally it would also be nice to be able to deprecate the unapply and copy methods. Currently it seems the only way to deprecate any of these methods is to manually implement the entire case class, and then apply the @deprecated annotation to the methods.