scala.coursier.util.Sync.scala Maven / Gradle / Ivy
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package coursier.util
trait Sync[F[_]] extends Gather[F] with PlatformSync[F] {
def delay[A](a: => A): F[A]
def handle[A](a: F[A])(f: PartialFunction[Throwable, A]): F[A]
def fromAttempt[A](a: Either[Throwable, A]): F[A]
def attempt[A](f: F[A]): F[Either[Throwable, A]] =
handle(map(f)(Right(_): Either[Throwable, A])) {
// in the case of Task, fatal errors are trapped anyway here, as it is backed by scala.concurrent.Future,
// causing some Task to never complete…
// (https://stackoverflow.com/questions/32641464/exception-causes-future-to-never-complete)
case t: Throwable => Left(t)
}
}
object Sync extends PlatformSyncCompanion {
def apply[F[_]](implicit sync: Sync[F]): Sync[F] =
sync
}