CatsDoobie.scala

import doobie.imports._
import doobie.util.compat.cats.monad._ // todo: make this automatic
import cats._, cats.data._, cats.implicits._

import doobie.util.capture.{Capture => DCapture}
import doobie.util.catchable.{Catchable => DCatchable}

object Implicits {
   implicit def doobieCatchable[F[_]](implicit F: ApplicativeError[F, Throwable]): DCatchable[F] = new DCatchable[F] {
    def attempt[A](ma: F[A]): F[cats.data.Xor[Throwable, A]] = F.attempt(ma)
    def fail[A](t: Throwable): F[A] = F.raiseError(t)
  }

  implicit def doobieCapture[F[_]](implicit F: Applicative[F]): DCapture[F] = new DCapture[F] {
    def apply[A](a: => A): F[A] = F.pureEval(Eval.always(a))
  }
}