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61 lines
1.8 KiB
61 lines
1.8 KiB
package wow.doge.mygame.implicits
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import cats.Functor
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import cats.Show
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import cats.data.Kleisli
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import cats.effect.Resource
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import cats.syntax.show._
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import monix.bio.IO
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import monix.bio.Task
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import monix.bio.UIO
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trait CatsExtensions {
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implicit class KleisliCompanionExt(k: Kleisli.type) {
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def io[S, E, A](f: S => IO[E, A]): Kleisli[UIO, S, Either[E, A]] =
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k.apply(s => f(s).attempt)
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}
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implicit class KleisliExt[S, E, A](k: Kleisli[UIO, S, Either[E, A]]) {
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def runIO(s: S) = k.run(s).rethrow
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}
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implicit class ResourceCompanionExt(r: Resource.type) {
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// def ioMake[UIO, R](acquire: )(release: ) = r.make()()
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def ioMake[E: Show, A](
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acquire: IO[E, A]
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)(
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release: A => UIO[Unit]
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)(implicit F: Functor[UIO]): Resource[UIO, Either[E, A]] =
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r.make(acquire.attempt)(a =>
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IO.fromEither(a)
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.onErrorHandleWith(err => IO.terminate(new Exception(err.show)))
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.flatMap(release)
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)
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val acq = IO(1).onErrorHandleWith(_ => IO.raiseError(""))
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val res =
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ioMake(acq)(_ => IO.unit)
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val result = res
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.use {
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case Left(value) => Task(Left(value))
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case Right(value) => Task(Right(value))
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}
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.hideErrors
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.rethrow
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// IO.unit.bracket()
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}
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implicit class ResourceExt[E, A](k: Resource[UIO, Either[E, A]]) {
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// def runIO(s: S) = k.run(s).rethrow
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// k.use
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// : IO[E, B]
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// def useIO[B](f: Either[E, A] => IO[E, B]) =
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// k.use(f).rethrow
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// type test[A] = Tuple2[*, Double]
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type IoResource[X, D] = Resource[IO[X, *], D]
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val x: Resource[IO[String, *], String] =
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Resource.make(IO.raiseError(""))(_ => IO.unit)
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// x.use(s => Task.unit)
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val x2: IoResource[String, String] =
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Resource.make(UIO(""))(_ => IO.unit)
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}
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}
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