macro memo

import scala.language.experimental.macros
import scala.reflect.macros.whitebox.Context

/**
 */
object MethodsMacro {
  def apply[T]: Seq[String] = macro genMethods[T]

  def genMethods[T: c.WeakTypeTag](c: Context): c.Tree = {
    import c.universe._

    val tType = implicitly[WeakTypeTag[T]].tpe
    val tTypes = tType.members.map(_.name.toString)
    q"Seq(..${tTypes})"
  }
}

object CompanionMethods {
  def apply[T]: Seq[String] = macro genMethods[T]

  def genMethods[T: c.WeakTypeTag](c: Context): c.Tree = {
    import c.universe._

    val tType = implicitly[WeakTypeTag[T]].tpe.dealias
    val tCompanion = tType.companion
    println(tType)
    println(tCompanion)
    val tTypes = tCompanion.members.map(_.name.toString)
    q"Seq(..${tTypes})"
  }
}