"+" method shadowed by any2stringadd

Hi! Thanks for a wonderful library.

We’re hitting an interesting issue:

@newtype case class Demo(value: Int) {
  def +(another: Demo): Demo = ???
}

def demo(d: Demo) = d + d
                      ^ type mismatch;
 found   : (...).Demo
    (which expands to)  (...).Demo.Type
 required: String

If I just say d +, I get missing argument list for method + in class any2stringadd. As far as I could find out, that method gets special treatment and can’t be unimported.

I took a look at the implementation of newtypes and as far as I could tell methods from the class are moved to an implicit class next to it, to which a conversion called Demo.Ops$newtype is applied - when I apply it manually, or import it (import Demo._ or by exact name) it compiles as expected. I assume any2stringadd just has higher precedence because it’s imported.

Is there something scala-newtype can do to allow this name in methods on newtypes?

[kubukoz]

Okay, I actually hadn’t checked that (just extrapolated a bit from the newtype example, sorry!).

That works. But not on a newtype…

[carymrobbins]

I’m going to go ahead and close this, but if there are still unresolved issues, please re-open.