Yasuyuki Abe yasuabe
yasuabe
/ GroupSpec.scala
Created
December 21, 2018 13:46
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package adcal_1222 | |
| import adcal_1222.Amida._ | |
| import cats.instances.AllInstances | |
| import cats.kernel.laws.discipline.GroupTests | |
| import cats.{Eq, Group} | |
| import org.scalacheck.{Arbitrary, Gen} | |
| import org.specs2.Specification | |
| import org.typelevel.discipline.specs2.Discipline |
yasuabe
/ Alternative.sc
Created
December 21, 2018 13:48
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import cats.Alternative | |
| import cats.syntax.apply._ | |
| import cats.syntax.semigroupk._ | |
| import cats.syntax.option._ | |
| import cats.instances.option._ | |
| import cats.syntax.traverse._ | |
| import cats.instances.list._ | |
| trait Div[A] { | |
| def div(n: Int): Option[A] |
yasuabe
/ Bitraverse.sc
Created
December 21, 2018 13:51
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import cats.data.Chain | |
| import cats.instances.option._ | |
| import cats.instances.tuple._ | |
| import cats.syntax.bifoldable._ | |
| import cats.syntax.bitraverse._ | |
| import cats.syntax.option._ | |
| import cats.syntax.traverse._ | |
| import cats.{Applicative, Bitraverse, Eval} | |
| import scala.language.higherKinds |
yasuabe
/ Contravariant.sc
Created
December 21, 2018 13:55
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import cats.Contravariant | |
| import cats.implicits._ | |
| case class Money(amount: Int) | |
| case class Earnings(basic: Money) | |
| case class Deductions(tax: Money) | |
| case class Salary(earnings: Earnings, deductions: Deductions) | |
| val salary: Salary = Salary(Earnings(Money(100)), Deductions(Money(10))) |
yasuabe
/ Category.sc
Created
December 21, 2018 14:00
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import cats.arrow.Category | |
| import cats.data.{Chain, Kleisli, Writer} | |
| import cats.syntax.writer._ | |
| import cats.syntax.compose._ | |
| type ChainWriter[T] = Writer[Chain[String], T] | |
| type KWriter[A, B] = Kleisli[ChainWriter, A, B] | |
| //val chainInstance: Category[KWriter] = new Category[KWriter] { | |
| // def id[A]: KWriter[A, A] = Kleisli[ChainWriter, A, A] { _.writer(Chain.empty) } |
yasuabe
/ BitraverseSpec.scala
Created
December 21, 2018 14:01
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package adcal_1222 | |
| import adcal_1222.TupleChain.TupleChain | |
| import cats.data.Chain | |
| import cats.instances.AllInstances | |
| import cats.instances.tuple._ | |
| import cats.laws.discipline.BitraverseTests | |
| import cats.syntax.bifoldable._ | |
| import cats.syntax.bitraverse._ | |
| import cats.syntax.traverse._ |
yasuabe
/ StreamSpec.scala
Created
December 25, 2018 10:35
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package representable01 | |
| import cats.instances.AllInstances | |
| import cats.laws.discipline.RepresentableTests | |
| import cats.{Eq, Functor, Representable} | |
| import org.scalacheck.{Arbitrary, Gen} | |
| import org.specs2.Specification | |
| import org.typelevel.discipline.specs2.Discipline | |
| import cats.instances.stream._ |
yasuabe
/ TripleSpec.scala
Created
December 25, 2018 10:36
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package representable01 | |
| import cats.instances.AllInstances | |
| import cats.laws.discipline.RepresentableTests | |
| import cats.{Apply, Functor, Representable} | |
| import org.scalacheck.{Arbitrary, Gen} | |
| import org.specs2.Specification | |
| import org.typelevel.discipline.specs2.Discipline | |
| import cats.syntax.apply._ |
yasuabe
/ representable.sc
Created
December 25, 2018 10:40
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import cats.{Functor, Monoid, Representable} | |
| import cats.instances.stream._ | |
| import cats.syntax.representable._ | |
| implicit val rep: Representable[Stream] { type Representation = Int } = new Representable[Stream] { | |
| def F: Functor[Stream] = implicitly[Functor[Stream]] | |
| type Representation = Int | |
| def tabulate[A](f: Int => A) = { | |
| def loop(n: Int): Stream[A] = f(n) #:: loop(n + 1) |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package scala_check | |
| import scala.util.Try | |
| import cats.syntax.either._ | |
| import cats.Apply | |
| import cats.syntax.apply._ | |
| import shapeless.nat._ | |
| import eu.timepit.refined.api.Refined | |
| import eu.timepit.refined.W | |
| import eu.timepit.refined.numeric.Interval.Closed |