Look up usages of scala method using macros

lookerUpper.scala

import scala.language.experimental.macros

//WIP does not function

final class lookerUpper extends scala.annotation.StaticAnnotation {
  import lookerUpper._
  /**
    * @param annottees list of untyped annottees
    * @return
    */
  def macroTransform(annottees: Any*): Any = macro lookerUpper_impl

}

object lookerUpper {
  import reflect.macros.whitebox

  def lookerUpper_impl(c: whitebox.Context)(annottees: c.Tree*): c.Tree = {
    import c.universe._
    println(s"entering impl $annottees")
    annottees.headOption.foreach {
      case vodd: ValOrDefDefApi =>{
        println("hi 1");c.warning(vodd.pos, s"f${vodd.name}")
      }
      case _ => c.warning(c.enclosingPosition, "This is unexpected")
    }

    c.warning(c.enclosingPosition, "Didn't hit anything :(")

    //I don't want to do anything to the tree actually
    //    Block(annottees) //Deprecated
    q"""
       ..$annottees
    """
  }

}

@lookerUpper() def hi = "hi"
@lookerUpper() val hi = "hi"

//no warnings or anything