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• CursorOpCats.scala

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argonaut.CursorOpCats.scala Maven / Gradle / Ivy

package argonaut

import CursorOpElementCats._
import cats._
import syntax.show._

object CursorOpCats extends CursorOpCatss {}

trait CursorOpCatss {
  implicit val CursorOpInstances: Show[CursorOp] & Eq[CursorOp] = {
    new Show[CursorOp] with Eq[CursorOp] {
      override def show(x: CursorOp) = x match {
        case Reattempt => ".?."
        case El(o, s) => if (s) o.show else '*' +: '.' +: o.show
      }
      def eqv(a1: CursorOp, a2: CursorOp) = {
        a1 == a2
      }
    }
  }
}