djspiewak · August 13, 2014 18:07
diff --git a/shapeless-madness.scala b/shapeless-madness.scala
  implicit class ListCodec[L <: HList](self: Codec[L]) {
    def pmap[L2 <: HList](p: Poly)(implicit m: Mapper.Aux[p.type, L, L2], m2: Mapper.Aux[p.type, L2, L]): Codec[L2] =
      self.xmap({ _ map p }, { _ map p })
  }
	implicit class ListCodec[L <: HList](self: Codec[L]) {
	def pmap[L2 <: HList](p: Poly)(implicit m: Mapper.Aux[p.type, L, L2], m2: Mapper.Aux[p.type, L2, L]): Codec[L2] =
	self.xmap({ _ map p }, { _ map p })
	}