import scala.reflect.makro.{Context => Ctx}

object Impls {
  def foo_impl(c: Ctx)(x: c.Expr[Int]): c.mirror.Tree = {
    import c.mirror._
    Apply(Select(x.tree, newTermName("$plus")), List(Literal(Constant(1))))
  }

  def bar_impl(c: Ctx)(x: c.Expr[Int]): c.mirror.Tree = {
    import c.mirror._
    Apply(Select(x.tree, newTermName("$plus")), List(Literal(Constant(2))))
  }

  def quux_impl(c: Ctx)(x: c.Expr[Int]): c.mirror.Tree = {
    import c.mirror._
    Apply(Select(x.tree, newTermName("$plus")), List(Literal(Constant(3))))
  }
}