quasar.repl.ConsoleIO.scala Maven / Gradle / Ivy
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/*
* Copyright 2014–2017 SlamData Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package quasar.repl
import slamdata.Predef._
import quasar.effect.LiftedOps
import scalaz._
sealed abstract class ConsoleIO[A]
object ConsoleIO {
final case class PrintLn(message: String) extends ConsoleIO[Unit]
@SuppressWarnings(Array("org.wartremover.warts.NonUnitStatements"))
final class Ops[S[_]](implicit S: ConsoleIO :<: S)
extends LiftedOps[ConsoleIO, S] {
def println(message: String): FreeS[Unit] =
lift(PrintLn(message))
}
object Ops {
implicit def apply[S[_]](implicit S: ConsoleIO :<: S): Ops[S] =
new Ops[S]
}
}