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macalinao/NullTypeclass.scala

Created May 20, 2017 07:21
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NullTypeclass.scala
package pw.ian.playground.cats
import cats._
import cats.implicits._
// runMain "pw.ian.playground.shapeless.KittensNullMonoid"
object NullTypeclass {
case class Moments(ct: Int)
implicit val momentsMonoid: Monoid[Moments] = Monoid[Moments]
def main(args: Array[String]): Unit = {
println(momentsMonoid) // prints "null"
}
}
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