A proposed addition to geotrellis.logic

Cons.scala

package geotrellis.logic

import geotrellis._

object Cons {
  def apply[A](opList:Op[List[A]], op:Op[A]):Op[List[A]] = {
    for (l <- opList; 
         a <- op) yield a :: l
  }

  implicit class ConsWrapper[A](opList: Op[List[A]]) {
    def ::(op: Op[A]) = Cons(opList, op)
  }
}